CN217813985U

CN217813985U - Detachable sealing structure for self-priming pump

Info

Publication number: CN217813985U
Application number: CN202220406111.2U
Authority: CN
Inventors: 王侣钧; 欧阳辉泉; 颜珍素
Original assignee: Zhejiang Dayuan Pump Industry Co ltd
Current assignee: Zhejiang Dayuan Pump Industry Co ltd
Priority date: 2022-02-26
Filing date: 2022-02-26
Publication date: 2022-11-15
Anticipated expiration: 2032-02-26

Abstract

The utility model belongs to the technical field of self priming pump, a detachable seal structure for self priming pump is related to, seal structure is including setting up the sealing liner between the water supply connector and the pump body, sealing liner is the loop configuration, around it both sides terminal surface respectively with the rear end face of water supply connector and the preceding terminal surface sealing connection of the pump body, be provided with annular filter screen mounting groove on sealing liner's the interior rampart, the filter screen is installed to detachable in the filter screen mounting groove, the filter screen be circular structure and with the rear end face of water supply connector and the preceding terminal surface parallel arrangement of the pump body, cavity and the interior cavity of the pump body in the water supply connector are kept apart to the filter screen. The utility model provides a self priming pump is with detachable seal structure prevents through increasing the filter screen that solid impurity, particulate matter from getting into inside the pump chamber.

Description

Detachable sealing structure for self-priming pump

Technical Field

The utility model belongs to the technical field of self priming pump, a detachable seal structure for self priming pump is related to.

Background

The self-priming pump sucks liquid into the pump through a water inlet joint connected with a water inlet pipe. If the liquid pumped by the self-priming pump contains solid impurities, particles and the like, the solid impurities and the particles can enter the interior of the self-priming pump. The solid impurity, the particulate matter that get into block the impeller easily and smash, lead to unable play water, and the impeller blocks for a long time and still can cause the motor to burn out.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, provide a detachable seal structure for self-priming pump, prevent that solid impurity, particulate matter from getting into inside the pump chamber through increasing the filter screen.

In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a from priming pump detachable seal structure, seal structure is including setting up the sealing liner between the water supply connector and the pump body, sealing liner is the loop configuration, around it both sides terminal surface respectively with the rear end face of water supply connector and the preceding terminal surface sealing connection of the pump body, be provided with annular filter screen mounting groove on sealing liner's the interior rampart, the filter screen is installed to detachable in the filter screen mounting groove, the filter screen be circular structure and with the rear end face of water supply connector and the preceding terminal surface parallel arrangement of the pump body, cavity and the interior cavity of the pump body in the water supply connector are kept apart to the filter screen.

In foretell a detachable seal structure for self-priming pump, be provided with annular recess on the rear end face of water supply connector and the preceding terminal surface of the pump body, two recesses cooperate and form annular sealing liner mounting groove, sealing liner's outer loop end is located sealing liner mounting groove, compresses tightly sealing liner behind water supply connector and the pump body fixed connection, has also compressed tightly the filter screen when compressing tightly sealing liner.

In foretell a detachable seal structure for self-priming pump, the coaxial preceding sealed sand grip that is provided with a plurality of annular of preceding side end face of gasket, preceding sealed sand grip and water supply connector's rear end face seal are connected, the coaxial rear end face that is provided with a plurality of annular of back sealed sand grip of gasket, the preceding end face seal of back sealed sand grip and the pump body is connected. Preferably, the cross sections of the front sealing convex strip and the rear sealing convex strip are of arc structures or semicircular structures. Preferably, the front sealing convex strip and the rear sealing convex strip are arranged at intervals and more than two.

In the above-mentioned detachable sealing structure for a self-priming pump, a distance between the filter screen and a front end surface of the gasket is smaller than a distance between the filter screen and a rear end surface of the gasket.

In the above-mentioned detachable sealing structure for a self-priming pump, an inner ring diameter of the filter screen front side sealing gasket is larger than an inner ring diameter of the filter screen rear side sealing gasket.

In the above-mentioned detachable sealing structure for a self-priming pump, the sealing gasket is a rubber gasket, and the filter screen is a metal filter screen, a plastic filter screen or a fabric filter screen.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses increased the filter screen on the basis of sealing liner, at the in-process of self priming pump work, the filter screen can filter solid impurity, particulate matter in the self priming pump suction liquid, prevents that it from getting into the inside influence to the operation of self priming pump of pump chamber. The utility model discloses simple structure still has, and the installation is dismantled conveniently, advantage that sealing performance is good.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an assembly view of the present invention;

reference numerals: 1. a water inlet joint; 2. a pump body; 3. a sealing gasket; 4. a filter screen; 5. front sealing convex strips; 6. and then sealing the convex strip.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1-2:

the utility model provides a detachable seal structure for self-priming pump, seal structure is including setting up the sealing liner 3 between the water supply connector 1 and the pump body 2, sealing liner 3 is the loop configuration, around it both sides terminal surface respectively with the rear end face of water supply connector 1 and the preceding terminal surface sealing connection of the pump body 2, be provided with annular filter screen 4 mounting groove on the interior rampart of sealing liner 3, detachable installs filter screen 4 in the 4 mounting groove of filter screen, filter screen 4 be circular structure and with the rear end face of water supply connector 1 and the preceding terminal surface parallel arrangement of the pump body 2, cavity and the interior cavity of the pump body 2 in the water supply connector 1 are kept apart to filter screen 4, and during operation, the liquid that contains solid impurity, particulate matter in the cavity in the water supply connector 1 just can get into among the cavity in the pump body 2 after filter screen 4 filters.

Referring to fig. 2, the mounting structure of the seal structure in the present embodiment is: be provided with annular recess on the rear end face of water supply connector 1 and the preceding terminal surface of the pump body 2, two recesses cooperate and form annular 3 mounting grooves of gasket 3, the outer ring end of gasket 3 is located 3 mounting grooves of gasket, compresses tightly gasket 3 behind water supply connector 1 and the 2 fixed connection of the pump body, has also compressed tightly filter screen 4 when compressing tightly gasket 3.

In order to strengthen the leakproofness of gasket 3 and water supply connector 1 and pump body 2, the preceding side end face of gasket 3 is coaxial to be provided with a plurality of annular preceding sealing sand grips 5, preceding sealing sand grip 5 and the rear end face sealing connection of water supply connector 1, the coaxial back sealing sand grip 6 that is provided with a plurality of annular of rear side end face of gasket 3, rear sealing sand grip 6 and the preceding end face sealing connection of pump body 2. Preferably, the cross sections of the front sealing convex strips 5 and the rear sealing convex strips 6 are arc-shaped structures or semicircular structures. Preferably, the front sealing convex strip 5 and the rear sealing convex strip 6 are arranged at intervals.

In order to facilitate the installation and the disassembly of the filter screen 4, the distance between the filter screen 4 and the front end face of the sealing gasket 3 is smaller than the distance between the filter screen 4 and the rear end face of the sealing gasket 3.

Further, the diameter of the inner ring of the front side sealing gasket 3 of the filter screen 4 is larger than that of the inner ring of the rear side sealing gasket 3 of the filter screen 4.

When the filter net 4 is attached and detached, the attachment is performed from the front side end of the seal packing 3.

The sealing gasket 3 is a rubber gasket, the filter screen 4 is a metal filter screen, a plastic filter screen or a fabric filter screen, and of course, other materials can be used for the sealing gasket 3 and the filter screen 4.

The above embodiment is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited in this way, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a detachable seal structure for self priming pump, seal structure is including setting up sealing liner (3) between water supply connector (1) and the pump body (2), sealing liner (3) are the loop configuration, around it both sides terminal surface respectively with the rear end face of water supply connector (1) and the preceding end face sealing connection of the pump body (2), its characterized in that, be provided with annular filter screen mounting groove on the interior rampart of sealing liner (3), filter screen (4) are installed to detachable in the filter screen mounting groove, filter screen (4) be circular structure and with the rear end face of water supply connector (1) and the preceding terminal surface parallel arrangement of the pump body (2), cavity and the interior cavity of the pump body (2) in water supply connector (1) are kept apart in filter screen (4).

2. The detachable sealing structure for the self-priming pump according to claim 1, wherein the rear end face of the water inlet joint (1) and the front end face of the pump body (2) are provided with annular grooves, the two grooves cooperate to form an annular sealing gasket mounting groove, the outer annular end of the sealing gasket (3) is located in the sealing gasket mounting groove, and the water inlet joint (1) and the pump body (2) are fixedly connected and then press the sealing gasket (3).

3. A detachable sealing structure for a self-priming pump according to claim 2, characterized in that the front end face of the sealing liner (3) is coaxially provided with a plurality of annular front sealing ribs (5), the front sealing ribs (5) are sealingly connected with the rear end face of the water inlet joint (1), the rear end face of the sealing liner (3) is coaxially provided with a plurality of annular rear sealing ribs (6), and the rear sealing ribs (6) are sealingly connected with the front end face of the pump body (2).

4. A detachable sealing structure for a self-priming pump according to claim 1, characterized in that the distance of the filter mesh (4) from the front end face of the gasket (3) is smaller than the distance of the filter mesh (4) from the rear end face of the gasket (3).

5. A detachable sealing structure for a self-priming pump according to claim 4, characterized in that the inner ring diameter of the filter screen (4) front side sealing gasket (3) is larger than the inner ring diameter of the filter screen (4) rear side sealing gasket (3).

6. A detachable sealing structure for a self-priming pump according to claim 1, characterized in that the sealing gasket (3) is a rubber gasket and the filter mesh (4) is a metal filter mesh, a plastic filter mesh or a fabric filter mesh.