A sewage pump
By installing a detection unit on the outer wall of the water pipe, the pressure inside the water pipe can be detected in real time and an alarm can be triggered for blockage. This solves the problem of pressure changes caused by sewage pump blockage, improves drainage stability and efficiency, and prevents pump damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGHANG PUMP CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing sewage pumps are prone to clogging when handling large amounts of domestic waste, leading to pressure changes that affect drainage flow and efficiency. Failure to detect this in time may also damage the pump body.
A hollow water pipe with an axial protrusion is installed on the outer peripheral wall of the water pipe. The detection unit inside includes a detection tube, a sliding rod, a collision sensor, and a spring. It is used to detect the pressure inside the water pipe in real time and to deal with blockages in a timely manner through spring reset and collision sensor alarm.
It enables real-time detection and alarm of pump body pressure, preventing pump damage caused by blockage and improving drainage stability and efficiency.
Smart Images
Figure CN224532994U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pump technology and relates to a sewage pump. Background Technology
[0002] With societal development, the volume of sewage and wastewater generated will increase significantly. Sewage inevitably contains larger pieces of household waste, such as gloves, towels, cloths, shopping bags, and even twigs and weeds, which can cause blockages in the pump, leading to changes in pump pressure and affecting drainage progress, flow rate, and efficiency. If not detected in time, this can easily damage the pump and fail to meet sewage discharge requirements. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a sewage pump that solves these problems.
[0004] The objective of this utility model can be achieved through the following technical solution: A sewage pump, comprising a pump body with an inlet and an outlet, wherein a water pipe is provided at the inlet of the pump body, characterized in that an axially outwardly protruding, hollow, and hollow convex ring portion is provided on the outer peripheral wall of the water pipe, connecting the inside and outside of the water pipe; a detection unit connected to the convex ring portion and used for detecting the pressure inside the water pipe is provided at the convex ring portion of the water pipe, the detection unit comprising a hollow detection tube, a sliding rod, a collision sensor, and a spring, the detection tube being disposed at the convex ring portion and connected thereto, the sliding rod being disposed at the convex ring portion and connected thereto, and the detection unit being connected to the convex ring portion. The detection tube is equipped with a sliding engagement with the inner wall of the lower end of the tube. An annular sealing block is provided on the inner wall of the lower end of the tube for mounting the sliding rod and for improving the sealing of the connection. A radially outward protruding ring is provided on the outer peripheral wall of the upper end of the sliding rod. This protruding ring can also slide with the inner wall of the detection tube. A ring one is provided on the inner wall of the upper section of the detection tube and is connected to it. The ring one is located above the protruding ring. The two ends of the spring abut against the protruding ring and the ring one, respectively. A second ring is also provided inside the detection tube and is connected to it for mounting the collision sensor. The second ring is located below the protruding ring.
[0005] In the aforementioned sewage pump, a connecting bracket is provided on the outer peripheral wall of the upper end of the detection tube, and a control box that cooperates with the collision sensor is provided on the connecting bracket.
[0006] In the aforementioned sewage pump, the outer peripheral wall of the detection tube located in the middle is provided with an opening groove that connects the inside and outside, and a sealing cover is provided at the opening groove of the detection tube.
[0007] In the aforementioned sewage pump, a limiting ring is provided inside the detection tube, which is connected to the detection tube and is used to limit the position of the sealing block and slides in cooperation with the sliding rod.
[0008] Compared with existing technologies, this sewage pump can detect the pressure inside the pump body by setting up a detection unit. When the pressure is insufficient, it can issue an alarm in time to prevent subsequent problems. Attached Figure Description
[0009] Figure 1 This is a partial cross-sectional structural diagram of this sewage pump.
[0010] In the diagram, 1. Water pump body; 2. Water pipe; 3. Detection pipe; 4. Sliding rod; 5. Collision sensor; 6. Spring; 7. Annular sealing block; 8. Protruding ring; 9. Ring 1; 10. Ring 2; 11. Connecting bracket; 12. Control box; 13. Limiting ring. Detailed Implementation
[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0012] like Figure 1As shown, this sewage pump includes a pump body 1 with an inlet and an outlet. A water pipe 2 is installed at the inlet of the pump body 1. The outer peripheral wall of the water pipe 2 has an axially outwardly protruding, hollow, and hollow convex ring portion that connects the inside and outside of the water pipe 2. A detection unit connected to the convex ring portion of the water pipe 2 and used to detect the pressure inside the water pipe 2 is installed thereon. The detection unit includes a hollow detection tube 3, a sliding rod 4, a collision sensor 5, and a spring 6. The detection tube 3 is located at and connected to the convex ring portion, and the sliding rod 4 is located inside the detection tube 3 and slides in cooperation with it. The inner wall of the lower end of the detection tube 3 is provided with an annular sealing block 7 for mounting the sliding rod 4 and for improving the sealing of the connection. The outer peripheral wall of the upper end of the sliding rod 4 is provided with a radially outwardly protruding ring 8, which can also slide against the inner wall of the detection tube 3. A sealing ring is provided on the protruding ring 8, and gaskets can be provided on both ends of the protruding ring 8. The inner wall of the upper section of the detection tube 3 is provided with a ring 9 connected to it, and the ring 9 is located above the protruding ring 8. The two ends of the spring 6 abut against the protruding ring 8 and the ring 9, respectively. The pump also includes a ring 2 (10) connected to the pump and used for mounting the collision sensor 5. The ring 2 (10) is located below the raised ring 8. When the pump is working normally, the pressure inside the water pipe 2 causes the sliding rod 4 to move axially upwards and compresses the spring 6. When a blockage occurs, the pressure inside the water pipe 2 becomes too low, causing the spring 6 to reset, thus causing the raised ring 8 to collide with the collision sensor 5, triggering an alarm and allowing employees to handle the situation promptly. A connecting bracket 11 is installed on the outer peripheral wall of the upper end of the detection tube 3, and the collision sensor 5 is mounted on this connecting bracket 11. The control box 12 is matched with the detection tube 3. An opening groove is opened on the outer peripheral wall of the detection tube 3 at the middle position to connect the inside and outside. A sealing cover is provided at the opening groove of the detection tube 3. A through hole can be opened on the outer peripheral wall of the detection tube 3 above the opening groove. When the detection tube 3 is provided with a through hole, a limiting rod connected to it is provided at the through hole of the detection tube 3. The limiting rod prevents the protruding ring 8 from contacting the collision sensor 5 when the water pump body 1 is not working. A limiting ring 13 is provided inside the detection tube 3, which is connected to it and is used to limit the position of the sealing block and slides with the sliding rod 4.
[0013] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0014] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A sewage pump, comprising a pump body (1) with an inlet and an outlet, wherein a water pipe (2) is provided at the inlet of the pump body (1), characterized in that, The water pipe (2) has an axially outwardly protruding, hollow, and hollow convex ring portion on its outer peripheral wall, which connects the inside and outside of the water pipe (2). A detection unit connected to the convex ring portion is located on the water pipe (2) for detecting the pressure inside the water pipe (2). The detection unit includes a hollow detection tube (3), a sliding rod (4), a collision sensor (5), and a spring (6). The detection tube (3) is located on and connected to the convex ring portion. The sliding rod (4) is located inside the detection tube (3) and slides within it. A spring is provided on the inner wall of the lower end of the detection tube (3). The sliding rod (4) is installed with an annular sealing block (7) for improving the sealing of the connection. The sliding rod (4) has a radially outward protruding ring (8) on the outer peripheral wall at the upper end. The detection tube (3) has a ring one (9) connected to it on the inner wall at the upper section. The ring one (9) is located above the protruding ring (8). The two ends of the spring (6) abut against the protruding ring (8) and the ring one (9) respectively. The detection tube (3) also has a ring two (10) connected to it and for the collision sensor (5) to be installed. The ring two (10) is located below the protruding ring (8).
2. The sewage pump according to claim 1, characterized in that, The detection tube (3) is provided with a connecting bracket (11) on the outer peripheral wall at the upper end, and a control box (12) that cooperates with the collision sensor (5) is provided on the connecting bracket (11).
3. The sewage pump according to claim 1, characterized in that, The detection tube (3) has an opening groove on its outer peripheral wall at the middle part to connect the inside and outside, and the detection tube (3) is provided with a sealing cap at the opening groove.
4. The sewage pump according to claim 1, characterized in that, The detection tube (3) is provided with a limiting ring (13) which is connected to it, used to limit the position of the sealing block, and slides in cooperation with the sliding rod (4).