CN217280583U

CN217280583U - Water pump pressure switch with buffering function

Info

Publication number: CN217280583U
Application number: CN202220441724.XU
Authority: CN
Inventors: 胡如达; 鲍伟杰
Original assignee: Taizhou Xinyi Electromechanical Co ltd
Current assignee: Taizhou Xinyi Electromechanical Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-08-23
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a water pump pressure switch with buffer function, which comprises a shell, wherein the lower part of the shell is provided with a piston motion cavity, the bottom end of the piston motion cavity is provided with a water inlet, a lifting piston is sleeved in the piston motion cavity in a sliding manner, the right upper end of the lifting piston is provided with an elastic reset piece, and the elastic reset piece is positioned in the shell; the upper end of the left side of the lifting piston is fixedly connected with a push-pull piece, and one end of the push-pull piece, which is far away from the lifting piston, is slidably sleeved on a vertically arranged switch toggle piece; the switch toggle piece comprises a sliding rod part, an upper limit limiting part, a lower limit limiting part and a start-stop contact part, wherein the upper limit limiting part is fixedly arranged on the upper part of the sliding rod part, the lower limit limiting part is arranged on the lower part of the sliding rod part in a height-adjustable mode, the push-pull piece is sleeved on the buffer sliding part in a sliding mode, the upper end of the sliding rod part penetrates through the inside of the start-stop contact part in a sliding mode, and a start-stop mechanism is arranged in the start-stop contact part. The utility model discloses an open effective buffering that stops to the water pump.

Description

Water pump pressure switch with buffering function

Technical Field

The utility model relates to a water pump control technical field especially relates to a take buffer function's water pump pressure switch.

Background

At present, the existing water pump controls the automatic start and stop of the water pump by matching a mechanical pressure switch with a pressure tank. However, in the actual use process, because the pressure tank is inflated, the inflation amount is often too low or too high, so that the pressure provided by the pressure tank is not matched with the preset pressure parameter of the pressure switch, and a good buffering effect cannot be achieved. Meanwhile, in the actual use process, the pressure switch needs to be adjusted in real time along with the use environment to start and stop the stroke of the mechanical pressure switch, so that the buffering effect of the mechanical pressure switch is improved. However, the start-stop value of the existing pressure tank is set after leaving the factory, and a user cannot adjust the start-stop value by himself, so that the existing pressure switch has no buffering function for starting and stopping the water pump.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a take buffer function's water pump pressure switch for the realization opens the effective buffering that stops to the water pump.

In order to achieve the above purpose, the utility model provides a following technical scheme: a water pump pressure switch with a buffering function comprises a shell, wherein a piston motion cavity is formed in the lower portion of the shell, a water inlet is formed in the bottom end of the piston motion cavity and used for feeding water to push a lifting piston, the lifting piston is sleeved in the piston motion cavity in a sliding mode, an elastic resetting piece is arranged at the right upper end of the lifting piston and located in the shell, and the elastic resetting piece is used for applying a vertically downward resetting thrust to the lifting piston;

the upper end of the left side of the lifting piston is fixedly connected with a push-pull piece, and one end of the push-pull piece, which is far away from the lifting piston, is slidably sleeved on a vertically arranged switch toggle piece;

the switch toggle piece comprises a sliding rod part, an upper limit limiting part, a lower limit limiting part and a start-stop contact part, the upper limit limiting part is fixedly arranged at the upper part of the sliding rod part, the lower limit limiting part is arranged at the lower part of the sliding rod part in a height-adjustable manner, a buffer sliding part is arranged on the sliding rod part and is positioned between the upper limit limiting part and the lower limit limiting part, the upper limit limiting part and the lower limit limiting part are used for limiting the push-pull piece, the push-pull piece is sleeved on the buffer sliding part in a sliding manner, a start-stop mechanism used for controlling the start-stop of the water pump is arranged in the start-stop contact part, and the upper end of the sliding rod part can slidably penetrate into the start-stop contact part and is in contact with the start-stop mechanism;

when the sliding rod part moves vertically upwards, the starting and stopping mechanism closes the water pump; when the sliding rod part moves vertically downwards, the starting and stopping mechanism starts the water pump.

Further, the elastic reset piece is a spring, and the spring is in a pressing state.

Furthermore, the water pump pressure switch also comprises a spring adjusting assembly, wherein the spring adjusting assembly comprises an adjusting knob, a twisting rod and a thread adjusting sleeve;

the torsion rod is fixedly connected to the lower end of the adjusting knob, an upper end cover is arranged on the upper end face of the shell, a reset cavity is arranged in the shell, and the torsion rod can rotatably penetrate through the upper end cover and extend into the reset cavity;

the screw thread adjusting sleeve is slidably sleeved in the reset cavity, a threaded opening is formed in the upper end of the screw thread adjusting sleeve, the torsion rod is in threaded connection with the threaded opening, the upper end of the spring is abutted to the inner wall of the top end of the screw thread adjusting sleeve, and the lower end of the spring is abutted to the upper end face of the lifting piston.

Further, be equipped with the screw in the adjust knob, the fixed the inlaying of head of screw is established inside the adjust knob, the afterbody threaded connection of screw is in the twitch pole top.

Furthermore, the start-stop mechanism comprises a movable contact piece, a pair of static contact pieces and a pair of jump-starting springs, movable contacts are arranged on two sides of the upper end of the movable contact piece, static contacts are arranged at the lower ends of the pair of static contact pieces, a connecting fulcrum is arranged at the upper end of the sliding rod part, and two ends of the jump-starting springs are respectively and fixedly connected with the connecting fulcrum and the lower ends of the movable contacts.

Furthermore, a lower end cover is arranged at the bottom end of the shell and located below the piston motion cavity, the water inlet is formed in the middle of the lower end cover, and an end cover sealing ring is arranged on one side, facing the piston motion cavity, of the lower end cover.

Furthermore, a sealing groove is formed in the outer side wall of the lifting piston, and a piston sealing ring is embedded in the sealing groove.

Furthermore, a connecting groove is formed in the upper end face of the lifting piston, a first spring connecting sleeve is arranged at the upper end of the inner wall of the bottom end of the connecting groove, and the lower end of the spring is sleeved on the first spring connecting sleeve; and a second spring connecting sleeve is arranged at the lower end of the inner wall at the top end of the thread adjusting sleeve, and the upper end of the spring is sleeved on the second spring connecting sleeve.

Further, the lower limit limiting part is a nut, and the nut is in threaded connection with the sliding rod part.

The utility model has the advantages that:

the utility model discloses a set up buffering sliding part on the sliding rod portion, promoted the break-make stroke of opening the stop mechanism, when push-and-pull piece slides on buffering sliding part and does not promote spacing portion of upper limit and lower limit locating part, owing to open the stop mechanism and not move, consequently the water pump can not move, opens of feed pump and stops and leave the buffering interval. Because the on-off stroke of the start-stop mechanism is unchanged after the buffering sliding part is fixed, the start-stop value of the start-stop mechanism does not need to be adjusted according to the technical scheme, and meanwhile, the effective buffering of the start-stop of the water pump is realized.

Drawings

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

fig. 2 is a schematic structural view of the start-stop mechanism when the movable contact piece is separated from the static contact piece;

fig. 3 is a schematic structural view of the middle start-stop mechanism when the movable contact piece contacts with the static contact piece.

Reference numerals: 1. a housing; 11. an upper end cover; 12. resetting the cavity; 13. a lower end cover; 14. a water inlet; 15. an end cap seal ring; 2. a piston motion cavity; 21. a lift piston; 22. an elastic reset member; 23. a push-pull member; 24. a piston seal ring; 3. a switch toggle piece; 31. a sliding rod part; 32. an upper limit limiting part; 33. a lower limit stop; 34. a start-stop contact part; 35. a buffer sliding part; 4. a start-stop mechanism; 41. a movable contact spring; 42. a static contact piece; 43. a take-off spring; 44. a movable contact; 45. a stationary contact; 46. connecting a fulcrum; 5. a spring adjustment assembly; 51. adjusting a knob; 52. twisting the rod; 53. a thread adjusting sleeve; 54. and (4) screws.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front", "back", "left", "right", "upper" and "lower" refer to directions in the drawings, and the terms "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1, the water pump pressure switch with the buffering function of the embodiment includes a housing 1, a piston movement cavity 2 is formed in the lower portion of the housing 1, a water inlet 14 is formed in the bottom end of the piston movement cavity 2, the water inlet 14 is used for introducing water to push a lifting piston 21, the lifting piston 21 is slidably sleeved in the piston movement cavity 2, an elastic resetting member 22 is arranged at the right upper end of the lifting piston 21, the elastic resetting member 22 is located inside the housing 1, and the elastic resetting member 22 is used for applying a vertically downward resetting thrust to the lifting piston 21;

the upper end of the left side of the lifting piston 21 is fixedly connected with a push-pull piece 23, and one end of the push-pull piece 23, which is far away from the lifting piston 21, is slidably sleeved on a vertically arranged switch toggle piece 3;

the switch toggle piece 3 comprises a sliding rod part 31, an upper limit limiting part 32, a lower limit limiting part 33 and a start-stop contact part 34, wherein the upper limit limiting part 32 is fixedly arranged at the upper part of the sliding rod part 31, the lower limit limiting part 33 is arranged at the lower part of the sliding rod part 31 in a height-adjustable manner, a buffer sliding part 35 is arranged on the sliding rod part 31, the buffer sliding part 35 is positioned between the upper limit limiting part 32 and the lower limit limiting part 33, the upper limit limiting part 32 and the lower limit limiting part 33 are used for limiting the push-pull piece 23, the push-pull piece 23 is sleeved on the buffer sliding part 35 in a sliding manner, a start-stop mechanism 4 used for controlling the start-stop of the water pump is arranged in the start-stop contact part 34, and the upper end of the sliding rod part 31 can penetrate into the start-stop contact part 34 in a sliding manner and is in contact with the start-stop mechanism 4;

when the sliding rod part 31 moves vertically upwards, the starting and stopping mechanism 4 closes the water pump; when the sliding rod 31 moves vertically downward, the start and stop mechanism 4 starts the water pump.

This technical scheme has promoted the break-make stroke of opening stop mechanism 4 through set up buffering sliding part 35 on sliding rod portion 31, when push-and-pull piece 23 slides and does not promote spacing portion 32 of upper limit and lower limit limiting part 33 on buffering sliding part 35 at push-and-pull piece 23, because start stop mechanism 4 does not move, consequently the water pump can not move, and the start-stop of water-feeding pump has left the buffering interval. Because the on-off stroke of the start-stop mechanism 4 is unchanged after the buffering sliding part 35 is fixed, the start-stop value of the start-stop mechanism 4 does not need to be adjusted in the technical scheme, and meanwhile, the effective buffering of the start-stop of the water pump is realized.

Preferably, the elastic restoring member 22 is a spring, and the spring is in a compressed state.

Preferably, the water pump pressure switch further comprises a spring adjusting assembly 5, wherein the spring adjusting assembly 5 comprises an adjusting knob 51, a twisting rod 52 and a threaded adjusting sleeve 53;

the twist rod 52 is fixedly connected to the lower end of the adjusting knob 51, the upper end face of the shell 1 is provided with an upper end cover 11, the interior of the shell 1 is provided with a reset cavity 12, and the twist rod 52 can rotatably penetrate through the upper end cover 11 and extend into the reset cavity 12;

the thread adjusting sleeve 53 is slidably sleeved in the reset cavity 12, a threaded opening is formed in the upper end of the thread adjusting sleeve 53, the twisting rod 52 is in threaded connection with the threaded opening, the upper end of the spring abuts against the inner wall of the top end of the thread adjusting sleeve 53, and the lower end of the spring abuts against the upper end face of the lifting piston 21.

Specifically, in the present embodiment, when the adjusting knob 51 is rotated, the twist rod 52 is rotated, and since the twist rod 52 is screwed to the threaded opening at the upper end of the threaded adjusting sleeve 53, the threaded adjusting sleeve 53 is lifted and lowered inside the reset chamber 12 when the twist rod 52 is rotated to compress or release the spring, and the restoring thrust of the spring to the lifting piston 21 is adjusted along with the lifting and lowering of the threaded adjusting sleeve 53. When the adjusting knob 51 rotates clockwise, the twist rod 52 rotates clockwise, at this time, the threaded adjusting sleeve 53 descends in the reset cavity 12, and the reset thrust of the spring to the lifting piston 21 gradually increases; when the adjusting knob 51 is rotated counterclockwise, the twist rod 52 is rotated counterclockwise, and the threaded adjusting sleeve 53 descends in the reset chamber 12, so that the reset thrust of the spring to the lifting piston 21 is gradually reduced.

Because the lifting piston 21 can produce great volume change at the piston motion cavity 2 of lift in-process to because the existence of buffering slide 35, the break-make stroke of opening the stop mechanism 4 is great, therefore this technical scheme can play fine cushioning effect to opening stopping of water pump.

Preferably, a screw 54 is arranged in the adjusting knob 51, the head of the screw 54 is fixedly embedded in the adjusting knob 51, and the tail of the screw 54 is screwed on the top of the twisting rod 52.

Specifically, in this embodiment, the screw 54 is disposed between the adjusting knob 51 and the twisting rod 52, so that the adjusting knob 51 and the twisting rod 52 can be detachably connected, the transportation is facilitated, and the portability is improved.

Preferably, as shown in fig. 2 and 3, the start-stop mechanism 4 includes a movable contact 41, a pair of stationary contacts 42, and a pair of jump-out springs 43, the movable contact 44 is disposed on both sides of the upper end of the movable contact 41, the stationary contact 45 is disposed on the lower end of the pair of stationary contacts 42, the connection fulcrum 46 is disposed on the upper end of the sliding rod portion 31, and both ends of the jump-out spring 43 are respectively fixedly connected to the connection fulcrum 46 and the lower end of the movable contact 44.

Specifically, in the present embodiment, when the push-pull member 23 slides on the buffer sliding portion 35 and does not push the upper limit stopper 32 or the lower limit stopper 33, the movable contact 44 on the movable contact piece 41 and the stationary contact 45 on the stationary contact piece 42 maintain the original contact state. When the push rod slides on the buffer sliding part 35 to abut against the upper limit limiting part 32 and pushes the sliding rod part 31 to move vertically upwards, the connecting fulcrum 46 is positioned at the uppermost end, one end of the pair of tripping springs 43 connected with the movable contact 44 is respectively positioned at the lower left side and the lower right side of the connecting fulcrum 46, the movable contact 44 is separated from the fixed contact 45, and the water pump is closed; when the push-pull member 23 slides on the buffer sliding part 35 to abut against the lower limit stopper 33 and pushes the sliding rod part 31 to move vertically downwards, the connection fulcrum 46 is located at the lowest end, and at this time, one ends of the pair of jump springs 43 connected with the movable contact 44 are respectively located at the upper left and the upper right of the connection fulcrum 46, the movable contact 44 contacts with the fixed contact 45, and the water pump is started.

Preferably, the bottom end of the housing 1 is provided with a lower end cover 13, the lower end cover 13 is located below the piston movement cavity 2, the water inlet 14 is formed in the middle of the lower end cover 13, and one side of the lower end cover 13 facing the piston movement cavity 2 is provided with an end cover sealing ring 15.

Specifically, in this embodiment, the effective sealing of the piston motion cavity 2 inside the housing 1 is improved by arranging the end cover sealing ring 15 in the lower end cover 13, and the sealing performance of the technical scheme is improved.

Preferably, a sealing groove is formed in the outer side wall of the lifting piston 21, and a piston sealing ring 24 is embedded in the sealing groove.

Specifically, in this embodiment, the piston sealing ring 24 is embedded on the outer side wall of the lifting piston 21, so that the sealing performance between the lifting piston 21 and the piston motion cavity 2 is effectively improved.

Preferably, the upper end surface of the lifting piston 21 is provided with a connecting groove, the upper end of the inner wall of the bottom end of the connecting groove is provided with a first spring connecting sleeve, and the lower end of the spring is sleeved on the first spring connecting sleeve; the lower end of the inner wall of the top end of the thread adjusting sleeve 53 is provided with a second spring connecting sleeve, and the upper end of the spring is sleeved on the second spring connecting sleeve.

Specifically, in this embodiment, a first spring connecting sleeve is disposed in the connecting groove, and a second spring connecting sleeve is disposed at the lower end of the inner wall of the top end of the thread adjusting sleeve 53, so that the spring is connected with the lifting piston 21 and the thread adjusting sleeve 53 more tightly, and the structural stability of the present technical scheme is improved.

Preferably, the lower limit stopper 33 is a nut screwed to the slide rod portion 31.

Specifically, in this embodiment, the lower limit limiting member 33 is provided as a nut, so that the length of the buffer sliding portion 35 can be adjusted by rotating the nut on the sliding rod portion 31, and the on-off stroke of the opening and closing mechanism 4 can be adjusted. When the nut is fixed after adjustment is finished, the on-off stroke of the start-stop mechanism 4 is fixed.

The working principle is as follows:

when water enters the water inlet 14, the water exerts pressure on the lift piston 21. When the pressure of water to the lifting piston 21 is greater than the reset thrust of the spring to the lifting piston 21, the lifting piston 21 rises in the piston motion cavity 2, at the moment, the spring is continuously compressed, the reset thrust of the spring to the lifting piston 21 is continuously increased, meanwhile, the lifting piston 21 pushes the push rod to slide and rise on the buffering sliding part 35, when the push rod moves to abut against the upper limit limiting part 32, the push rod pushes the sliding rod part 31 to rise, the starting and stopping mechanism 4 is triggered, and the starting and stopping mechanism 4 is enabled to close the water pump. When water is less than the reset thrust of spring to lift piston 21, lift piston 21 descends in piston motion cavity 2, and the spring lasts to extend this moment, and the spring lasts to diminish to lift piston 21's reset thrust, and lift piston 21 promotes the catch bar and slides and descend on buffering sliding part 35 simultaneously, and when the catch bar moved to offseting with the spacing portion 32 of upper limit, the catch bar promoted slip rod portion 31 and descends, triggers start-stop mechanism 4 for start-stop mechanism 4 starts the water pump. When the lifting piston 21 pushes the push rod to ascend or descend at the buffering sliding part 35, the restoring thrust of the spring to the lifting piston 21 is continuously changed along with the compression amount of the spring, when the push rod does not generate thrust to the upper limit limiting part 32 and the lower limit limiting part 33, and the pressure of water to the lifting piston 21 is consistent with the restoring thrust of the spring to the lifting piston 21 at the moment, the lifting piston 21 is stressed in a balanced manner, after the original movement state is kept for one end distance, the movement is stopped in the piston movement cavity 2 under the action of resistance, at the moment, the starting and stopping mechanism 4 does not act, so that the water pump does not act, a buffering interval is reserved for starting and stopping the water pump, and effective buffering for starting and stopping the water pump is realized.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a take buffer function's water pump pressure switch which characterized in that: the water inlet device comprises a shell (1), wherein a piston motion cavity (2) is formed in the lower portion of the shell (1), a water inlet (14) is formed in the bottom end of the piston motion cavity (2), a lifting piston (21) is sleeved in the piston motion cavity (2) in a sliding mode, the water inlet (14) is used for feeding water to push the lifting piston (21), an elastic resetting piece (22) is arranged at the positive upper end of the lifting piston (21), the elastic resetting piece (22) is located in the shell (1), and the elastic resetting piece (22) is used for applying a vertically downward resetting thrust to the lifting piston (21);

the upper end of the left side of the lifting piston (21) is fixedly connected with a push-pull piece (23), and one end, far away from the lifting piston (21), of the push-pull piece (23) is slidably sleeved on a vertically arranged switch toggle piece (3);

switch dial piece (3) including slip pole portion (31), the spacing portion of upper limit (32), lower limit limiting part (33) and start and stop contact site (34), the fixed setting of the spacing portion of upper limit (32) is in the upper portion of slip pole portion (31), lower limit limiting part (33) height-adjustable festival sets up the lower part of slip pole portion (31), be equipped with buffering slide part (35) on slip pole portion (31), buffering slide part (35) are located upper limit spacing portion (32) with between lower limit limiting part (33), upper limit spacing portion (32) with lower limit limiting part (33) are used for right it is spacing to push-pull piece (23), push-pull piece (23) slip cup joint on buffering slide part (35), be equipped with in start-stop contact site (34) and be used for controlling the start-stop mechanism (4) of water pump start-stop, slidable slide pole portion (31) upper end run through to start-stop contact site (34) inside and start-stop contact site (34) with Is in contact with the start-stop mechanism (4);

when the sliding rod part (31) moves vertically upwards, the starting and stopping mechanism (4) closes the water pump; when the sliding rod part (31) moves downwards vertically, the start-stop mechanism (4) starts the water pump.

2. The water pump pressure switch with a buffer function according to claim 1, characterized in that: the elastic reset piece (22) is a spring, and the spring is in a pressing state.

3. The water pump pressure switch with a buffering function according to claim 2, characterized in that: the pressure switch of the water pump also comprises a spring adjusting component (5), wherein the spring adjusting component (5) comprises an adjusting knob (51), a twisting rod (52) and a thread adjusting sleeve (53);

the twisting rod (52) is fixedly connected to the lower end of the adjusting knob (51), an upper end cover (11) is arranged on the upper end face of the shell (1), a reset cavity (12) is arranged in the shell (1), and the twisting rod (52) can rotatably penetrate through the upper end cover (11) and extend into the reset cavity (12);

screw thread adjusting sleeve (53) slip cup joint in reset cavity (12) is interior, the screw thread mouth has been seted up to the upper end of screw thread adjusting sleeve (53), twist pole (52) threaded connection in the screw thread mouth, the upper end of spring with the top inner wall of screw thread adjusting sleeve (53) offsets, the lower extreme of spring with the up end of lift piston (21) offsets.

4. The water pump pressure switch with a buffering function according to claim 3, wherein: a screw (54) is arranged in the adjusting knob (51), the head of the screw (54) is fixedly embedded in the adjusting knob (51), and the tail of the screw (54) is in threaded connection with the top of the twisting rod (52).

5. The water pump pressure switch with a buffering function according to claim 1, characterized in that: the starting and stopping mechanism (4) comprises a movable contact piece (41), a pair of static contact pieces (42) and a pair of tripping springs (43), wherein movable contacts (44) are arranged on two sides of the upper end of the movable contact piece (41), static contacts (45) are arranged at the lower ends of the pair of static contact pieces (42), a connecting fulcrum (46) is arranged at the upper end of the sliding rod part (31), and two ends of the tripping spring (43) are fixedly connected with the connecting fulcrum (46) and the lower ends of the movable contacts (44) respectively.

6. The water pump pressure switch with a buffering function according to claim 1, characterized in that: the bottom end of the shell (1) is provided with a lower end cover (13), the lower end cover (13) is located below the piston motion cavity (2), the water inlet (14) is formed in the middle of the lower end cover (13), and an end cover sealing ring (15) is arranged on one side, facing the piston motion cavity (2), of the lower end cover (13).

7. The water pump pressure switch with a buffering function according to claim 1, characterized in that: a sealing groove is formed in the outer side wall of the lifting piston (21), and a piston sealing ring (24) is embedded in the sealing groove.

8. The water pump pressure switch with a buffering function according to claim 3, wherein: the upper end surface of the lifting piston (21) is provided with a connecting groove, the upper end of the inner wall of the bottom end of the connecting groove is provided with a first spring connecting sleeve, and the lower end of the spring is sleeved on the first spring connecting sleeve;

the lower end of the inner wall of the top end of the thread adjusting sleeve (53) is provided with a second spring connecting sleeve, and the upper end of the spring is sleeved on the second spring connecting sleeve.

9. The water pump pressure switch with a buffering function according to claim 1, characterized in that: the lower limit limiting piece (33) is a nut, and the nut is in threaded connection with the sliding rod portion (31).