CN211398044U

CN211398044U - Pump head for self-priming pump

Info

Publication number: CN211398044U
Application number: CN201921851359.4U
Authority: CN
Inventors: 孙乃东
Original assignee: Zibo Dongyi Environmental Protection Technology Co ltd
Current assignee: Zibo Dongyi Environmental Protection Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-09-01
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a pump head for self priming pump, which belongs to the field of self priming pumps, comprising a self priming pump body, the lower end of the self priming pump body is provided with a pump head, the pump head is arranged into a left pump head and a right pump head, a filter plate is connected in the pump head in a sliding way, the middle part of the filter plate is provided with a filter screen, the left end of the right pump head is fixedly connected with a limit block, the right end of the left pump head is provided with a limit groove, the filter screen is arranged in the pump head, the filter screen can filter water entering the self priming pump, impurities in the water are prevented from entering the self priming pump, the self priming pump is blocked, the work of the self priming pump is influenced, the service life of the self priming pump is reduced, the pump head for self priming pump is provided with a connecting block, the connecting pipes with smaller model can be connected, wide application range and resource saving.

Description

Pump head for self-priming pump

Technical Field

The utility model relates to a self priming pump field, more specifically say, relate to a pump head for self priming pump.

Background

The self-priming pump belongs to a self-priming centrifugal pump, and has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, stronger self-priming capability and the like, a pipeline does not need to be provided with a bottom valve, only quantitative priming liquid needs to be stored in the pump body before work, and self-priming pumps made of different materials can be adopted for different liquids.

At present, some self priming pump heads that sell on the market or being used by people do not have to be provided with the filter screen in the pump head, when the pump head absorbs water, impurity in the water can directly get into the pump head, long-time the use, not only can block up the self priming pump, still can damage self priming pump internals, and life is lower, and some self priming pump heads in addition can only be connected the connecting pipe of same model, when needs are connected different model connecting pipes, need people to change the self priming pump, be difficult to resources are saved and money, be unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

Problem to exist among the prior art, the utility model aims to provide a pump head for self priming pump, it is provided with the filter screen inside the pump head, the filter screen can filter the inside water that gets into the self priming pump, prevent that impurity in the water from getting into the self priming pump, block up the self priming pump, influence self priming pump work, the life of self priming pump has been reduced, this self priming pump is provided with the connecting block again, the less connecting pipe of model can be connected through the use of connecting block, make the connecting pipe of different models can be connected to the pump head, when the connecting pipe of equidimension not is connected in needs, it can connect to need not to change the self priming pump, application scope is wide, and resources are saved.

In order to solve the above problems, the utility model adopts the following technical proposal.

A pump head for a self-priming pump comprises a self-priming pump body, wherein a pump head is arranged at the lower end of the self-priming pump body, the pump head is arranged into a left pump head and a right pump head, a filter plate is connected in the pump head in a sliding manner, a filter screen is arranged in the middle of the filter plate, a limiting block is fixedly connected to the left end of the right pump head, a limiting groove is formed in the right end of the left pump head, the limiting block is clamped with the limiting groove, a first sealing gasket is attached to the left end of the right pump head, the limiting block is connected with the first sealing gasket in a sliding manner, the left end of the first sealing gasket is contacted with the left pump head, the left pump head and the limiting block are connected through a bolt, a supporting block is fixedly connected inside the pump head, a supporting ring is fixedly connected inside the supporting block, a first thread groove is formed, keep off the ring and form the second thread groove with the support ring, there is the connecting pipe through threaded connection in the second thread groove, connecting pipe and sealing washer sliding connection, it is provided with the filter screen in that the pump head is inside, the filter screen can filter the inside water that gets into the self priming pump, prevent that impurity in the water from getting into the self priming pump, block up the self priming pump, influence self priming pump work, the life of self priming pump has been reduced, this self priming pump is provided with the connecting block again with the pump head, the connecting pipe that the model is less can be connected through the use of connecting block, make the connecting pipe of different models can be connected to the pump head, when the not connecting pipe of equidimension is connected to needs, need not to change the self priming pump and.

Further, both ends symmetric connection has the fixture block about the filter, the left end of left side pump head and the right-hand member symmetry of right pump head are provided with the draw-in groove, fixture block and draw-in groove joint, fixture block have spacing and fixed action, through the joint effect of fixture block and draw-in groove for the filter can be fixed inside the pump head, and can not take place about the phenomenon of back-and-forth movement, has the effect of the firm installation of filter.

Further, the material that first sealed pad, the sealed pad of second and sealing washer adopt is rubber, first sealed pad and the sealed pad of second all set up to the annular, rubber indicates the high elasticity polymer material that has reversible deformation, be rich in elasticity at room temperature, can produce great deformation under very little exogenic action, can the reconversion after detaching external force, rubber has elasticity and leakproofness, through first sealed pad, the sealed pad of second and the setting of sealing washer, can be respectively with controlling the joint gap between the pump head, the joint gap between connecting block and the first thread groove and the joint gap between connecting pipe and the connecting block seal up, make the self priming pump body when using, good leakproofness has, the phenomenon of leaking can not exist.

Furthermore, a gasket is sleeved on the outer surface of the bolt in a sliding manner, the upper end of the gasket is in contact with the bolt, the lower end of the gasket is in contact with the pump head, the gasket is a part which is arranged between the pump head and the bolt and is generally a flat metal ring, and the gasket is mainly used for increasing the contact area between the bolt and the surface of the pump head and preventing the surface of the pump head from being worn; and secondly, the spring washer plays a role in preventing looseness, and can effectively prevent the looseness of the bolt, so that the left pump head and the right pump head are installed loosely.

Further, there is the connecting block through threaded connection in the first thread groove, the connecting block middle part is provided with circular recess, the middle part of connecting block is provided with the sealing washer, and the connecting block has the effect of installing the connecting pipe on the pump head, when needs connect less connecting pipe, needs use the connecting block to connect for the connecting pipe of different models can be connected to the pump head, and application scope is wide.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is provided with the filter screen in the pump head is inside, the filter screen can filter the inside water that gets into the self priming pump, prevent that the impurity in the water from getting into the self priming pump, block up the self priming pump, influence self priming pump work, the life of self priming pump has been reduced, this self priming pump is provided with the connecting block with the pump head again, the less connecting pipe of model can be connected in use through the connecting block, make the connecting pipe of different models can be connected to the pump head, when the connecting pipe of equidimension not is connected in needs, it can connect to need not to change the self priming pump, and wide application range.

(2) The both ends symmetric connection has the fixture block about the filter, and the left end of left pump head and the right-hand member symmetry of right pump head are provided with the draw-in groove, fixture block and draw-in groove joint, and the fixture block has spacing and fixed action, through the joint effect of fixture block and draw-in groove for the filter can be fixed inside the pump head, and can not take place about the phenomenon of back-and-forth movement, has the effect of the firm installation of filter.

(3) First sealed pad, the material that second sealed pad and sealing washer adopted is rubber, first sealed pad and second sealed pad all set up to the annular, rubber indicates the high elasticity polymer material that has reversible deformation, be rich in elasticity at room temperature, can produce great deformation under very little exogenic action, can reconversion after detaching external force, rubber has elasticity and leakproofness, through first sealed pad, the setting of second sealed pad and sealing washer, can be respectively will control the joint gap between the pump head, the joint gap between connecting block and the first thread groove and the joint gap between connecting pipe and the connecting block seal, make the self priming pump body when using, good leakproofness has, the phenomenon of leaking can not exist.

(4) The outer surface of the bolt is sleeved with a gasket in a sliding mode, the upper end of the gasket is in contact with the bolt, the lower end of the gasket is in contact with the pump head, the gasket is a part which is arranged between the pump head and the bolt and is generally a flat metal ring, and the gasket is mainly used for increasing the contact area of the bolt and the surface of the pump head and preventing the surface of the pump head from being worn; and secondly, the spring washer plays a role in preventing looseness, and can effectively prevent the looseness of the bolt, so that the left pump head and the right pump head are installed loosely.

(5) Have the connecting block through threaded connection in the first thread groove, the connecting block middle part is provided with circular recess, and the middle part of connecting block is provided with the sealing washer, and the connecting block has the effect of installing the connecting pipe on the pump head, when needs connect less connecting pipe, needs to use the connecting block to connect for the connecting pipe of different models can be connected to the pump head, and application scope is wide.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection block of the present invention;

FIG. 3 is a schematic view of the connection between the first thread groove and the connection pipe of the present invention;

FIG. 4 is a schematic view of the connection between the left and right pump heads of the present invention;

FIG. 5 is an enlarged view of FIG. 2 at A;

FIG. 6 is an enlarged view of FIG. 4 at B

Fig. 7 is an enlarged view of fig. 2 at C.

The reference numbers in the figures illustrate:

1 self priming pump body, 2 pump heads, 3 filter, 4 filter screens, 5 fixture blocks, 6 draw-in grooves, 7 stopper, 8 spacing grooves, 9 first sealed pad, 10 bolts, 11 gaskets, 12 supporting shoes, 13 support rings, 14 first thread grooves, 15 second sealed pads, 16 fender rings, 17 second thread grooves, 18 connecting blocks, 19 sealing washers, 20 connecting pipes.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-7, a pump head for a self-priming pump, including a self-priming pump body 1, referring to fig. 1-7, a pump head 2 is disposed at a lower end of the self-priming pump body 1, the pump head 2 is configured as a left pump head and a right pump head, a filter plate 3 is slidably connected to the pump head 2, the filter plate 3 has a function of supporting the filter screen 4, the filter screen 4 is disposed at a middle portion of the filter plate 3, the filter screen 4 has a function of filtering impurities contained in the water, a limiting block 7 is fixedly connected to a left end of the right pump head, a limiting groove 8 is disposed at a right end of the left pump head, the limiting block 7 is connected to the limiting groove 8 in a clamping manner, through the limiting function of the limiting block 7 and the limiting groove 8, the upper and lower front and rear positions of the left and right pump heads can be limited at first, so as, the left end and the contact of left pump head of first sealed 9 that fill up, left side pump head and stopper 7 pass through bolt 10 and connect, the joint action through bolt 10, can fix left pump head and right pump head, thereby can fix filter 3 inside pump head 2, the inside fixedly connected with supporting shoe 12 of pump head 2, supporting shoe 12 has the effect of supporting ring 13, the inside fixedly connected with supporting ring 13 of supporting shoe 12, supporting ring 13 forms first thread groove 14 with pump head 2, first thread groove 14 and second thread groove 17 all have the effect of connecting pipe 20, the laminating has second sealed pad 15 in the first thread groove 14, the inside fixedly connected with of supporting ring 13 keeps off ring 16, keep off ring 16 and supporting ring 13 and form second thread groove 17, there is connecting pipe 20 through threaded connection in the second thread groove 17, connecting pipe 20 and sealing washer 19 sliding connection.

Referring to fig. 2, 3, 4, 5 and 6, the left and right ends of the filter plate 3 are symmetrically connected with the clamping blocks 5, the left end of the left pump head and the right end of the right pump head are symmetrically provided with the clamping grooves 6, the clamping blocks 5 are clamped with the clamping grooves 6, the clamping blocks 5 have limiting and fixing effects, the filter plate 3 can be fixed inside the pump head 2 through the clamping effect of the clamping blocks 5 and the clamping grooves 6, the filter plate 3 is firmly installed, the first sealing gasket 9, the second sealing gasket 15 and the sealing ring 19 are made of rubber, the rubber is a high-elasticity polymer material with reversible deformation, the rubber is rich in elasticity at room temperature, can generate large deformation under the action of small external force, can recover the original shape after the external force is removed, the rubber has elasticity and sealing performance, the first sealing gasket 9 and the second sealing gasket 15 are both arranged in an annular shape, through the setting of first sealed pad 9, the sealed 15 and the sealing washer 19 of second, can be sealed the connection gap between the pump head about respectively, the connection gap between connecting block 18 and the first thread groove 14 and the connection gap between connecting pipe 20 and the connecting block 18 for self priming pump body 1 has good leakproofness when using, can not have the phenomenon of leaking.

Referring to fig. 2, 3 and 6, a gasket 11 is slidably sleeved on an outer surface of the bolt 10, an upper end of the gasket 11 is in contact with the bolt 10, a lower end of the gasket 11 is in contact with the pump head 2, the gasket 11 is a part which is arranged between the pump head 2 and the bolt 10 and is a generally flat metal ring, and the gasket 11 mainly functions to increase a contact area between the bolt 10 and a surface of the pump head 2 and prevent the surface of the pump head 2 from being worn out; secondly, as spring washer, play locking effect, can prevent effectively that bolt 10 from becoming flexible, pump head installation laxity about causing, there is connecting block 18 through threaded connection in the first thread groove 14, connecting block 18 has the effect of stopping up first thread groove 14, make connecting block 18 when connecting pipe 20, the phenomenon that first thread groove 14 leaks can not take place, connecting block 18 middle part is provided with the circular recess, the middle part of connecting block 18 is provided with sealing washer 19, connecting block 18 has the effect of installing connecting pipe 20 on pump head 2, when needs connect less connecting pipe 20, need use connecting block 18 to connect, make pump head 2 can connect the connecting pipe 20 of different models, wide application scope.

When the pump head for the self-priming pump is used, when a connecting pipe 20 with a normal model is required to be installed, the connecting pipe 20 is directly in threaded connection with the first thread groove 14, so that the uppermost end of the connecting pipe 20 is in contact with the second sealing gasket 15 attached to the first thread groove 14, the second sealing gasket 15 can increase the sealing performance of the joint of the connecting pipe 20 and the first thread groove 14, and the phenomenon of water leakage cannot occur, the connecting pipe 20 is installed, when the connecting pipe 20 with a small model is required to be installed, the connecting block 18 is firstly connected with the first thread groove 14, the connecting block 18 blocks the first thread groove 14, so that the small connecting pipe 20 is in threaded connection with the second thread groove 17, at the moment, the sealing ring 19 arranged on the connecting block 18 is in contact with the connecting pipe 20, and the sealing ring 19 plays a role in sealing a connecting gap between the connecting pipe 20 and the second thread groove 17, make whole self priming pump body 1 have good leakproofness, and when using this self priming pump body 1, the water that gets into 2 insides of pump head can pass through filter 3 and filter screen 4, and filter screen 4 filters the impurity in the water, prevents that impurity and dust that contain in the water from with the internal blocking of self priming pump body 1, damages self priming pump body 1 internals, has the effect of guaranteeing self priming pump body 1 normal work, extension self priming pump body 1 life.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a pump head for self priming pump, includes self priming pump body (1), its characterized in that: the lower extreme of self priming pump body (1) is provided with pump head (2), pump head (2) sets up to left pump head and right pump head, sliding connection has filter (3) in pump head (2), the middle part of filter (3) is provided with filter screen (4), the left end fixedly connected with stopper (7) of right side pump head, the right-hand member of left side pump head is provided with spacing groove (8), stopper (7) and spacing groove (8) joint, the left end laminating of right side pump head has first sealed pad (9), stopper (7) and first sealed pad (9) sliding connection, the left end and the left pump head contact of first sealed pad (9), left side pump head and stopper (7) are connected through bolt (10), the inside fixedly connected with supporting shoe (12) of pump head (2), the inside fixedly connected with support ring (13) of supporting shoe (12), support ring (13) and pump head (2) form first thread groove (14), the laminating has sealed pad (15) of second in first thread groove (14), the inside fixedly connected with of support ring (13) keeps off ring (16), keep off ring (16) and support ring (13) and form second thread groove (17), there is connecting pipe (20) through threaded connection in second thread groove (17), connecting pipe (20) and sealing washer (19) sliding connection.

2. A pumphead for a self-priming pump as claimed in claim 1, wherein: the left end and the right end of the filter plate (3) are symmetrically connected with clamping blocks (5), the left end of the left pump head and the right end of the right pump head are symmetrically provided with clamping grooves (6), and the clamping blocks (5) are clamped with the clamping grooves (6).

3. A pumphead for a self-priming pump as claimed in claim 1, wherein: the material that first sealed pad (9), the sealed pad of second (15) and sealing washer (19) adopted is rubber, first sealed pad (9) and the sealed pad of second (15) all set up to the annular.

4. A pumphead for a self-priming pump as claimed in claim 1, wherein: the surface slip of bolt (10) has cup jointed gasket (11), the upper end and the bolt (10) contact of gasket (11), the lower extreme and the pump head (2) contact of gasket (11).

5. A pumphead for a self-priming pump as claimed in claim 1, wherein: a connecting block (18) is connected in the first thread groove (14) through threads, a circular groove is formed in the middle of the connecting block (18), and a sealing ring (19) is arranged in the middle of the connecting block (18).