Get the previous and next page tables from pagination URL in Python

I'm trying to iteratively crawler the tables from each page on this website. With the code below I'm able to extract one page only:

import requests
import json
import pandas as pd
import numpy as np
from bs4 import BeautifulSoup

url = 'http://bjjs.zjw.beijing.gov.cn/eportal/ui?pageId=308894'
website_url = requests.get(url).text
#soup = BeautifulSoup(website_url, 'lxml')
soup = BeautifulSoup(website_url, 'html.parser')
table = soup.find('table', {'class': 'gridview'})
#https://stackoverflow.com/questions/51090632/python-excel-export
df = pd.read_html(str(table))[0]
print(df.head(5)) 

Output:

序号  ...      竣工备案日期
0   1  ...  2020-01-23
1   2  ...  2020-01-23
2   3  ...  2020-01-23
3   4  ...  2020-01-23
4   5  ...  2020-01-23

[5 rows x 9 columns]

Any ideas how could I get each page content by click next page button on the web? Thank you.