CN214221465U

CN214221465U - Diaphragm pump

Info

Publication number: CN214221465U
Application number: CN202120133046.6U
Authority: CN
Inventors: 张文森
Original assignee: Taizhou Spey Demirel Plant Protection Machinery Co ltd
Current assignee: Taizhou Spey Demirel Plant Protection Machinery Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-09-17
Anticipated expiration: 2031-01-18

Abstract

The utility model relates to a diaphragm pump relates to the field of water pump, which comprises a pump body, the pump body on be equipped with water inlet and delivery port, the pump body on be equipped with the regulator, the regulator include pressure regulating box, pressure regulating board and elasticity pressing mechanism, the pressure regulating box on be equipped with the pressure regulating inlet hole and the pressure regulating and portal, the pressure regulating inlet hole with the water inlet be linked together, the pressure regulating portal with the delivery port be linked together, the pressure regulating board be located the pressure regulating box and cover pressure regulating inlet hole and pressure regulating portal, elasticity pressing mechanism include spring and screw rod, the spring one end with the screw rod offset, the other end is used for supporting tight pressure regulating board, the screw rod with pressure regulating box threaded connection. This application has the minimum hydraulic effect that can adjust out water according to actual need.

Description

Diaphragm pump

Technical Field

The application relates to the field of water pumps, in particular to a diaphragm pump.

Background

The miniature diaphragm pump is widely applied to the industries of water industry, agriculture, medical treatment, automobiles, ships and the like, and comprises a pump body and a direct current motor electrically connected with the pump body.

In the prior art, a one-way valve is usually disposed at the water outlet of the micro diaphragm pump to ensure that the water discharged from the water outlet has a certain pressure.

In view of the above-mentioned related art, the inventor believes that there is a defect that the existing diaphragm pump cannot adjust the minimum pressure of the discharged water according to the actual requirement.

SUMMERY OF THE UTILITY MODEL

In order to adjust the minimum water pressure of water according to actual need for convenience, this application provides a diaphragm pump.

The application provides a diaphragm pump adopts following technical scheme:

the utility model provides a diaphragm pump, includes the pump body, the pump body on be equipped with water inlet and delivery port, the pump body on be equipped with the regulator, the regulator include pressure regulating box, pressure regulating board and elasticity pressing mechanism, the pressure regulating box on be equipped with the pressure regulating and advance the hole and the pressure regulating and leave, the pressure regulating advance the hole with the water inlet be linked together, the pressure regulating leave with the delivery port be linked together, the pressure regulating board be located the pressure regulating box and cover the pressure regulating advance the hole and the pressure regulating leave, elasticity pressing mechanism include spring and screw rod, the spring one end with the screw rod offset, the other end is used for supporting tight pressure regulating board, the screw rod with pressure regulating box threaded connection.

Through adopting above-mentioned technical scheme, when using, water gets into from the water inlet to enter into to the pressure regulating inlet, when water pressure is lower, because the one end and the screw rod of spring offset, the other end is used for supporting tight pressure regulating board, consequently, when the pressure regulating in the inlet is greater than the pressure that the spring applyed on the pressure regulating board, the spring can take place deformation, and then makes pressure regulating board take place the displacement, and the pressure regulating water in the inlet can get into to the pressure regulating box in, and get into to the delivery port through the pressure regulating portal. Therefore when the minimum pressure of water is adjusted to needs, through rotating the screw rod, change the compression degree of screw rod to the spring, can realize adjusting the purpose to the minimum pressure of water.

Optionally, the elastic pressing mechanism further comprises a butt plate, the butt plate is fixedly connected with the screw rod, a positioning rod is arranged on the butt plate, and one end of the spring is abutted against the butt plate and sleeved on the positioning rod.

Through adopting above-mentioned technical scheme, when using, the probability of misplacing between spring and the butt plate can effectively be reduced in the existence of locating lever.

Optionally, the pressure regulating device further comprises a pressure equalizing plate, one side surface of the pressure equalizing plate abuts against the spring, and the other side surface of the pressure equalizing plate abuts against the pressure regulating plate.

By adopting the technical scheme, the pressure of the spring on the pressure adjusting plate is more uniform due to the existence of the pressure equalizing plate.

Optionally, the pressure regulating plate is provided with a positioning groove, the pressure equalizing plate is provided with a positioning protrusion matched with the positioning groove, and the positioning protrusion extends into the positioning groove.

Through adopting above-mentioned technical scheme, when using, the location is protruding to be located the constant head tank, consequently when the installation, can effectively reduce the probability that the equalizer plate misplaced for the pressure regulating plate.

Optionally, the pressure regulating box in still be equipped with the support bar, the support bar be used for supporting the pressure regulating board, the support bar divide into the intake antrum and go out the water cavity with the inside cavity of pressure regulating box, the support bar on still be equipped with the intercommunication groove that is used for intercommunication intake antrum and goes out the water cavity, the pressure regulating inlet hole be located the intake intracavity, the pressure regulating hole be located go out the water cavity, play water cavity in still be equipped with the honeycomb duct, the honeycomb duct one end with the pressure regulating hole be linked together, the other end quilt the pressure regulating board cover.

Through adopting above-mentioned technical scheme, when using, water can follow the pressure regulating and enter into the intracavity of intaking in the downthehole to enter into to the intracavity of water outlet through the intercommunication groove, because the honeycomb duct is covered by the pressure regulating board this moment, consequently when using, along with the water pressure crescent in the intracavity of water outlet chamber and the water inlet, and then can be with pressure regulating board jack-up, consequently make when jacking the pressure regulating board, the power that the pressure regulating board received is more even, reduces the uneven and probability that wearing and tearing accelerate of pressure regulating board atress.

Optionally, the pressure regulating plate is further provided with a plugging bulge, and the plugging bulge is used for extending into the flow guide pipe.

Through adopting above-mentioned technical scheme, when using, the shutoff arch can play good sealed effect to the stand pipe.

Optionally, the pressure regulating plate is further provided with a positioning round table, the small end face of the positioning round table faces the supporting bar and is in contact with the supporting bar, and a positioning ring for supporting the positioning round table is further arranged in the pressure regulating box.

Through adopting above-mentioned technical scheme, the position circle is used for supporting the location round platform, and simultaneously when the pressure regulating board is installed, the position circle contacts with the location round platform, can play the guide effect to the location round platform, and then can make when the installation, the precision is more higher.

Optionally, the positioning groove is in a round table shape, and the small end face of the positioning groove is far away from the spring.

Through adopting above-mentioned technical scheme, when the installation equalizer plate, the constant head tank can play the effect of direction to the constant head tank, and then makes when the installation equalizer plate, and the precision is higher.

In summary, the present application includes at least one of the following beneficial technical effects:

the purpose of adjusting the lowest pressure of the discharged water is realized;

the pressure on the pressure regulating plate is more uniform, and the probability of aggravation of abrasion caused by nonuniform stress on the pressure regulating plate is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional structure diagram of a pressure regulating device according to an embodiment of the present application.

Fig. 3 is a schematic view of an internal structure of the case according to the embodiment of the present application.

Description of reference numerals: 1. a pump body; 11. a water inlet; 12. a water outlet; 2. a pressure regulating box; 21. a first box body; 211. positioning rings; 22. a second box body; 3. a screw; 31. a butt joint plate; 32. positioning a rod; 33. a spring; 4. a pressure equalizing plate; 41. positioning the projection; 51. pressure regulating inlet holes; 52. a pressure regulating outlet; 53. a flow guide pipe; 6. a pressure regulating plate; 61. positioning the circular truncated cone; 62. positioning a groove; 63. plugging the protrusion; 7. a supporting strip; 71. a communicating groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a diaphragm pump. Referring to fig. 1 and 2, including the pump body 1, be equipped with water inlet 11 and delivery port 12 on the pump body 1, fixedly connected with pressure regulating device on the pump body 1, pressure regulating device includes pressure regulating box 2, pressure regulating board 6 and elasticity pressing mechanism, and pressure regulating box 2 includes box body one 21 and box body two 22, box body one 21 and pump body 1 fixed connection, and box body two 22 and box body one 21 realize dismantling the connection through the bolt. The first box body 21 is provided with a pressure regulating inlet hole 51 and a pressure regulating outlet hole 52, the pressure regulating inlet hole 51 is used for communicating the water inlet 11 with the inner cavity of the pressure regulating box 2, and the pressure regulating outlet hole 52 is used for communicating the water outlet 12 with the inner cavity of the pressure regulating box 2. The pressure regulating plate 6 is located in the pressure regulating cavity and covers the pressure regulating outlet hole 52 and the pressure regulating inlet hole 51.

Referring to fig. 1 and 2, elasticity pressing means includes screw rod 3, spring 33, butt joint board 31 and equalizer 4, set up on box body two 22 and be used for with the screw rod 3 threaded connection's screw hole, screw rod 3 stretches into to pressure regulating box 2 in through the screw hole, screw rod 3 stretches into one end and butt joint board 31 fixed connection to pressure regulating box 2 in, fixedly connected with locating lever 32 on the side that screw rod 3 was kept away from to butt joint board 31, the one end of spring 33 and butt joint board 31 offset and the cover is established on locating lever 32, the other end offsets with equalizer 4. One side of the pressure equalizing plate 4 away from the spring 33 is abutted against the pressure adjusting plate 6.

When the pressure regulating box is used, water enters from the water inlet 11 and enters the pressure regulating inlet hole 51, when the water pressure in the pressure regulating inlet hole 51 is greater than the pressure applied to the pressure regulating plate 6 by the spring 33, the pressure regulating plate 6 is jacked up, so that the water in the pressure regulating inlet hole 51 can enter the inner cavity of the pressure regulating box 2 and flow into the pressure regulating outlet hole 52, and finally flows out from the water outlet 12. Therefore, the water pressure required for adjusting the water in the pressure adjusting inlet hole 51 and jacking up the pressure adjusting plate 6 can be achieved by adjusting the compression degree of the screw rod 3 on the spring 33. Thereby the lowest water pressure of the discharged water can be adjusted.

Referring to fig. 1 and 2, a positioning groove 62 is formed in one side surface of the pressure adjusting plate 6 facing the pressure equalizing plate 4, the positioning groove 62 is in a circular truncated cone shape, the small end surface of the positioning groove 62 is far away from the spring 33, a positioning protrusion 41 is fixedly connected to one side surface of the pressure equalizing plate 4 facing the pressure adjusting plate 6, and the positioning protrusion 41 is in a cylindrical shape and has the same diameter as the small end surface of the positioning groove 62.

The positioning groove 62 can guide the positioning protrusion 41 when being installed. Meanwhile, under the pressure of the spring 33, the positioning protrusion 41 is in contact with the small end face of the positioning groove 62, so that the probability of dislocation between the pressure equalizing plate 4 and the pressure adjusting plate 6 can be reduced.

Referring to fig. 2 and 3, the inner cavity of the first box body 21 is cylindrical, the support bar 7 is fixedly connected in the inner cavity of the first box body 21, the support bar 7 divides the inner cavity of the first box body 21 into a water inlet cavity and a water outlet cavity, the support bar 7 is further provided with a communicating groove 71 for communicating the water inlet cavity with the water outlet cavity, the pressure regulating inlet hole 51 is communicated with the water inlet cavity, and the pressure regulating outlet hole 52 is communicated with the water outlet cavity. The water outlet cavity is also fixedly connected with a guide pipe 53, and the height of the guide pipe 53 is equal to that of the support bar 7. One end of the guide pipe 53 is communicated with the pressure regulating outlet 52, and the other end is pressed against the pressure regulating plate 6. The pressure regulating plate 6 is also fixedly connected with a plugging bulge 63, and the plugging bulge 63 is used for extending into the flow guide pipe 53. The pressure regulating plate 6 is also fixedly connected with a positioning circular truncated cone 61 towards one side face of the supporting bar 7, the small end face of the positioning circular truncated cone 61 faces towards the supporting bar 7 and is in contact with the supporting bar 7, and a positioning ring 211 used for supporting the positioning circular truncated cone 61 is also fixedly connected in the box body I21.

The implementation principle of the diaphragm pump in the embodiment of the application is as follows: when the pressure-regulating water tap is used, water enters the pressure-regulating inlet hole 51 from the water inlet 11 and enters the water inlet cavity, the water inlet cavity enters the water outlet cavity through the communicating groove 71, when the water pressure in the water inlet cavity and the water outlet cavity is greater than the pressure applied to the pressure-regulating plate 6 by the spring 33, the pressure-regulating plate 6 is jacked up, one end of the guide pipe 53 is not abutted against the pressure-regulating plate 6, and then the water in the water outlet cavity can flow to the pressure-regulating outlet hole 52 from the guide pipe 53 and is finally discharged from the water outlet 12.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A diaphragm pump, characterized by: comprises a pump body (1), a water inlet (11) and a water outlet (12) are arranged on the pump body (1), the pump body (1) is provided with a pressure regulating device which comprises a pressure regulating box (2), a pressure regulating plate (6) and an elastic pressing mechanism, the pressure regulating box (2) is provided with a pressure regulating inlet hole (51) and a pressure regulating outlet hole (52), the pressure regulating inlet hole (51) is communicated with the water inlet (11), the pressure regulating outlet hole (52) is communicated with the water outlet (12), the pressure regulating plate (6) is positioned in the pressure regulating box (2) and covers the pressure regulating inlet hole (51) and the pressure regulating outlet hole (52), elasticity pressing means include spring (33) and screw rod (3), the one end of spring (33) with screw rod (3) offset, the other end is used for supporting tight pressure regulating board (6), screw rod (3) with pressure regulating box (2) threaded connection.

2. A diaphragm pump according to claim 1, wherein: the elastic pressing mechanism further comprises a butt plate (31), the butt plate (31) is fixedly connected with the screw rod (3), a positioning rod (32) is arranged on the butt plate (31), and one end of the spring (33) abuts against the butt plate (31) and is sleeved on the positioning rod (32).

3. A diaphragm pump according to claim 1, wherein: the pressure regulating device further comprises a pressure equalizing plate (4), one side surface of the pressure equalizing plate (4) is abutted against the spring (33), and the other side surface of the pressure equalizing plate is abutted against the pressure regulating plate (6).

4. A diaphragm pump according to claim 3, wherein: the pressure regulating plate (6) is provided with a positioning groove (62), the pressure equalizing plate (4) is provided with a positioning bulge (41) matched with the positioning groove (62), and the positioning bulge (41) extends into the positioning groove (62).

5. A diaphragm pump according to claim 1, wherein: pressure regulating box (2) in still be equipped with support bar (7), support bar (7) be used for supporting pressure regulating plate (6), support bar (7) divide into intake antrum and play water cavity with the inside cavity of pressure regulating box (2), support bar (7) on still be equipped with intercommunication groove (71) that are used for intercommunication intake antrum and play water cavity, pressure regulating inlet hole (51) be located the intake intracavity, the pressure regulating hole (52) be located the play water cavity, the play water cavity in still be equipped with honeycomb duct (53), honeycomb duct (53) one end with the pressure regulating hole (52) be linked together, the other end quilt pressure regulating plate (6) cover.

6. A diaphragm pump according to claim 5, wherein: the pressure regulating plate (6) is also provided with a plugging bulge (63), and the plugging bulge (63) is used for extending into the flow guide pipe (53).

7. A diaphragm pump according to claim 5, wherein: pressure regulating plate (6) on still be equipped with location round platform (61), the little terminal surface of location round platform (61) towards support bar (7) and contact with support bar (7), pressure regulating box (2) in still be equipped with position circle (211) that are used for supporting location round platform (61).

8. A diaphragm pump according to claim 4, characterized in that: the positioning groove (62) is in a round table shape, and the small end face of the positioning groove is far away from the spring (33).