CN217270745U

CN217270745U - Accurate pressure regulating electronic pressure controller

Info

Publication number: CN217270745U
Application number: CN202220108173.5U
Authority: CN
Inventors: 陈佳妮
Original assignee: Wenling Huanli Electric Appliance Co ltd
Current assignee: Wenling Huanli Electric Appliance Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-23
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses an accurate pressure regulating electronic pressure controller, which belongs to the technical field of water pump pressure controllers and comprises a shell, an elastic diaphragm, a pressure spring, a push rod component, a check valve and a control box, wherein the shell comprises an upper cover, a middle cavity and a base; the inner side of the upper cover is provided with a positioning sleeve, the pressure spring extends into the positioning sleeve, the bottom of the pressure spring is pressed against the elastic diaphragm, and the top of the pressure spring is provided with a pressure regulating nut and a pressure regulating screw rod; the pressure regulating nut is clamped in the limiting guide groove of the positioning pipe sleeve, and the pressure regulating screw rod is rotated to drive the pressure regulating nut to move up and down in the positioning pipe sleeve, so that the pre-tightening force of the pressure spring is adjusted; the upper cover is equipped with the regulation through-hole in the position that corresponds the pressure regulating screw, and the head of pressure regulating screw stretches into in the regulation through-hole and supports with the upper cover and lean on, and the seam is seted up on the top of head and is sewed up or the shrinkage pool. The utility model discloses an use the rotatory pressure regulating screw rod of screwdriver just can adjust pressure controller's settlement pressure to adapt to different use occasions, convenient operation is swift, and the pressure regulating is accurate.

Description

Accurate pressure regulating electronic pressure controller

Technical Field

The utility model relates to a water pump pressure controller technical field especially relates to an accurate pressure regulating electronic pressure controller.

Background

In a water supply system of a water pump, in order to realize automatic control of the water pump, an electronic pressure controller is generally required to be configured. The existing electronic pressure controller usually comprises a shell, a water inlet and a water outlet which can be connected in a water supply pipeline are arranged on the shell, a diaphragm capable of sensing water pressure is arranged in the shell, the inner cavity of the shell is divided into a water pressure cavity communicated with the water inlet and the water outlet and a balance cavity isolated from the water inlet and the water outlet by the diaphragm, a spring for abutting against the diaphragm is arranged in the balance cavity, and a displacement sensor or a pressure switch which can be linked with the diaphragm is arranged on the diaphragm. After the water tap is opened until the water pressure in the water pressure cavity reaches the set starting pressure, the diaphragm acts to enable the corresponding displacement sensor or the pressure switch to act to generate a control signal, and the control signal is processed by the control circuit to automatically control the water pump to start.

However, the existing electronic pressure controller has the following defects: in actual use, the water pump needs different starting pressures according to different use occasions, so that the set pressure of the controller needs to be adjusted correspondingly, at the moment, the shell needs to be opened to adjust the pretightening force of the spring, and then the shell is closed. Like this, can influence the sealing performance of whole casing on the one hand, cause easily leaking, on the other hand is owing to need open and close the casing, consequently causes the inconvenience of pressure adjustment, and the pressure regulating is not accurate moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned problem, and provide a pressure regulating electronic pressure controller that just need not to open the casing operation accurate convenient accurate.

The technical scheme of the utility model is that:

the utility model provides an accurate pressure regulating electronic pressure controller, is including the casing that has water inlet and delivery port, the control box of setting on the casing and elastic diaphragm, pressure spring, push rod subassembly, the check valve of setting in the casing, the check valve sets up in water inlet department, the casing is including upper cover, well cavity and the base that links together in proper order, the sealed crimping of elastic diaphragm is in between upper cover and the well cavity to form the water pressure chamber in well cavity and base, pressure spring is located the upper cover, and its bottom supports indirectly at least and presses on elastic diaphragm, push rod subassembly sets up and embeds first inductive element with the elastic diaphragm linkage, the built-in control panel of control box is equipped with second inductive element on the control panel, its characterized in that:

the inner side of the upper cover is provided with a positioning sleeve, the pressure spring extends into the positioning sleeve, the top of the pressure spring is provided with a pressure regulating assembly for regulating the pretightening force of the pressure spring, and the pressure regulating assembly comprises a pressure regulating nut which is pressed against the top of the pressure spring and a pressure regulating screw rod which is in threaded connection with the pressure regulating nut; the two sides of the pressure regulating nut extend to form lugs, the corresponding position of the inner wall of the positioning sleeve is provided with a limiting guide groove matched with the lugs, and the pressure regulating nut is clamped in the limiting guide groove in a vertically movable manner through the lugs; the upper cover is corresponding the position of pressure regulating screw rod is equipped with the regulation through-hole, and the pole portion and the pressure regulating nut threaded connection of pressure regulating screw rod, head stretch into in the regulation through-hole and support with the upper cover and lean on, the top of head seted up with screwdriver complex line crack or shrinkage pool.

Set up the pressure regulating subassembly at pressure spring's top to set up the regulation through-hole in the position that the upper cover corresponds, consequently through using the rotatory pressure regulating screw rod of screwdriver just can adjust the settlement pressure of controller, thereby obtain different starting pressure, need not to open the casing, convenient operation is swift moreover, and the pressure regulating is accurate.

Preferably, in the above precise pressure regulating electronic pressure controller, an upper limit snap spring and a lower limit snap spring are embedded in a rod portion of the pressure regulating screw, and the pressure regulating nut is in threaded connection between the two limit snap springs. And an upper limiting snap spring and a lower limiting snap spring are arranged, so that the voltage regulating range is limited.

As optimization, in the above-mentioned accurate pressure regulating electronic pressure controller, the upper cover is formed with the step hole that the aperture is greater than the regulation through-hole at the regulation through-hole towards the downthehole drill way of position sleeve, and the head of pressure regulating screw is equipped with radial bellied positioning flange, positioning flange supports and leans on at the upper cover in the step hole. The pressure regulating screw rod is provided with a positioning flange which is matched with the step hole of the upper cover, so that the assembly is facilitated and the positioning is accurate.

Furthermore, in the above precise pressure regulating electronic pressure controller, a straight groove, a cross groove or a hexagonal concave hole is formed at the top end of the head of the pressure regulating screw. Is adapted to a straight screwdriver or a cross screwdriver or a hexagonal screwdriver.

As optimization, in the above-mentioned accurate pressure regulating electronic pressure controller, the middle part of the pressure regulating nut is protruded downwards to be T-shaped, the boss is extended into the pressure spring, and the bottom end of the boss is provided with an annular clamping groove matched with the lower limiting clamp spring. The downward bulge of the pressure regulating nut can facilitate positioning and assembly, and the annular clamping groove is just clamped on the lower limiting clamp spring when the pressure regulating nut moves to the lower limiting position, so that the operation is stable and reliable.

Further, in foretell accurate pressure regulating electronic pressure controller, push rod assembly is including setting up briquetting, the response push rod and the set screw of setting at the elastic diaphragm lower surface on the elastic diaphragm upper surface, set screw passes briquetting, elastic diaphragm, response push rod in proper order and is in the same place three fixed connection, and pressure spring's bottom supports and presses on the briquetting, the response push rod is hollow structure, and first sensing element sets up in the response push rod, and the bottom of response push rod sets up the end cap.

Further, in the above precise pressure regulating electronic pressure controller, the first sensing element is a magnetic steel, and the second sensing element is a reed pipe electrically connected to the control board. When the magnetic steel is close to the reed pipe, the two magnetic yellow pieces of the reed pipe are contacted and then conducted, so that a control signal is generated to control the water pump.

Further, in foretell accurate pressure regulating electronic pressure controller, the water inlet sets up in the bottom of base, and the delivery port sets up in the left side of well cavity, and the control box sets up the right side at well cavity.

The utility model has the advantages that: the setting pressure of the controller can be adjusted by rotating the pressure adjusting screw rod through the screwdriver, different starting pressures are obtained, the device is suitable for different use occasions, the shell does not need to be opened, the sealing performance of the shell is protected, the operation is convenient and fast, and the pressure adjusting is accurate.

Drawings

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

In the figure, 1, a housing; 11. an upper shell; 111. adjusting the through hole; 12. a middle cavity; 13. a base; 14. a water inlet; 15. a water outlet; 16. positioning the sleeve; 2. a control box; 21. a control panel; 22. a reed switch; 3. an elastic diaphragm; 31. sealing the annular edge; 32. a limiting ring; 33. a limiting cover; 4. a pressure spring; 5. a check valve; 61. a pressure regulating nut; 611. a lug; 612. an annular neck; 62. a pressure regulating screw; 621. positioning the flange; 622. a straight slot; 63. an upper limiting clamp spring; 64. a lower limiting clamp spring; 71. briquetting; 72. an induction push rod; 73. a fixing screw; 74. and (5) magnetic steel.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and examples:

in the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "left", "right", "upper", "lower", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, the precise pressure-regulating electronic pressure controller provided by this embodiment includes a housing 1 having a water inlet 14 and a water outlet 15, a control box 2 disposed on the housing 1, and an elastic diaphragm 3, a pressure spring 4, a push rod assembly, and a check valve 5 disposed in the housing 1.

Casing 1 includes upper cover 11, well cavity 12 and the base 13 that links together in proper order through the screw, and water inlet 14 sets up in the bottom of base 13, and delivery port 15 sets up in the left side of well cavity 12, and control box 2 sets up on the right side of well cavity 12, and check valve 5 sets up in water inlet 14 department.

The elastic diaphragm 3 is hermetically pressed between the upper cover 11 and the middle cavity 12, so that a water pressure cavity is formed in the middle cavity 12 and the base 13, and the specific sealing assembly structure is as follows: a stop ring 32 which is tightly matched is arranged in the top opening of the middle cavity 12, the stop ring 32 is matched with the middle cavity 12 to form an annular groove which is positioned at the top end of the middle cavity 12, the edge of the elastic diaphragm 3 extends downwards to form a circle of sealing annular edge 31, and the sealing annular edge 31 is embedded in the annular groove so as to accurately position the elastic diaphragm 3. A limit cover 33 is further arranged above the elastic diaphragm 3, the edge of the limit cover 33 is pressed on the edge of the elastic diaphragm 3, an upward concave cover body is formed below the limit cover 33 and allows the elastic diaphragm 3 to freely deform, and a through hole is formed in the middle of the limit cover 33 and allows the pressure spring 4 to be installed. The bottom of upper cover 11 sets up the bulge loop of a crimping on elastic diaphragm 3 seal ring limit 31, and the inside wall of upper cover 11 sets up the strengthening rib piece of a plurality of interval distribution's crimping in spacing cover 33 top, and when upper cover 11 passed through screw and well cavity 12 fixed connection, the bulge loop of upper cover 11 bottom and inboard strengthening rib piece can compress tightly elastic diaphragm 3 and spacing cover 33 to realize the reliable sealed between elastic diaphragm 3 and the well cavity 12.

The pressure spring 4 is positioned in the upper cover 11, the inner side of the upper cover 11 is provided with a positioning sleeve 16 integrated with the upper cover 11, the pressure spring 4 extends into the positioning sleeve 16, the bottom of the pressure spring at least indirectly abuts against the elastic diaphragm 3, and the top of the pressure spring is provided with a pressure regulating assembly for regulating the pretightening force of the pressure spring. The pressure regulating assembly comprises a pressure regulating nut 61 which is pressed against the top of the pressure spring 4 and a pressure regulating screw 62 which is in threaded connection with the inside of the pressure regulating nut 61. The two sides of the pressure regulating nut 61 extend to form a lug 611, a limit guide groove matched with the lug 611 is arranged at the corresponding position of the inner wall of the positioning sleeve 16, the pressure regulating nut 61 can be clamped in the limit guide groove in a vertically moving mode through the lug 611, and the pressure regulating nut 61 can be driven to vertically move in the positioning sleeve 16 along the limit guide groove by rotating the pressure regulating screw rod 62, so that the pretightening force of the pressure spring 4 can be regulated. An upper limiting clamp spring 63 and a lower limiting clamp spring 64 are embedded in the rod part of the pressure regulating screw rod 62, and the pressure regulating nut 61 is in threaded connection between the two limiting clamp springs, so that the pressure regulating range is limited. The middle part of the pressure regulating nut 61 protrudes downwards to form a T shape, the protruding part extends into the pressure spring 4, the bottom end of the protruding part is provided with an annular clamping groove 612 matched with the lower limiting clamp spring 64, and when the pressure regulating nut 61 moves to the lower limiting position, the annular clamping groove 612 is just clamped on the lower limiting clamp spring 64.

For the convenience of pressure regulation, the upper cover 11 is provided with a regulating through hole 111 at a position corresponding to the pressure regulating screw rod 62, a step hole with a diameter larger than that of the regulating through hole 111 is formed at the position of the regulating through hole 111 facing the orifice in the positioning sleeve 16, the rod part of the pressure regulating screw rod 62 is in threaded connection with the pressure regulating nut 61, the head part extends into the regulating through hole 111, meanwhile, the head part is provided with a positioning flange 621 protruding in the radial direction, and the positioning flange 621 abuts against the step hole of the upper cover 11. The top end of the head of the adjusting screw 62 is provided with a slot or a concave hole matched with a screwdriver, the set pressure of the controller can be conveniently and quickly adjusted by using the screwdriver, the slot or the concave hole can be a straight groove or a cross groove or a hexagonal concave hole, the straight groove 622 is preferably selected in the embodiment, the slot or the concave hole can be matched with the straight screwdriver, and a plurality of substitute tools can be found without the straight screwdriver.

The push rod assembly is arranged in linkage with the elastic membrane 3 and comprises a pressing block 71 arranged on the upper surface of the elastic membrane 3, an induction push rod 72 and a fixing screw 73, wherein the induction push rod 72 and the fixing screw 73 are arranged on the lower surface of the elastic membrane 3, the fixing screw 73 sequentially penetrates through the pressing block 71, the elastic membrane 3 and the induction push rod 72 to fixedly connect the pressing block 71, the bottom of the pressure spring 4 is pressed on the pressing block 71, the induction push rod 72 is of a hollow structure, a first induction element is arranged in the induction push rod 72, and a plug 75 is arranged at the bottom of the induction push rod 72. The control box 2 is internally provided with a control board 21, and the control board 21 is provided with a second sensing element. In this embodiment, the first sensing element is a magnetic steel 74, and the second sensing element is a magnetic control element reed switch 22 electrically connected to the control board 21. After the water faucet is opened, the check valve 5 is pushed open by water flow, water continuously rushes into the water pressure cavity from the water inlet 14 until the water pressure reaches the set starting pressure, the elastic diaphragm 3 is pushed open by overcoming the action of the pressure spring 4, meanwhile, the magnetic steel 74 in the push rod assembly is driven to act to generate a control signal, and the control signal is processed by the control circuit to automatically control the starting of the water pump.

Finally, it is understood that various other changes and modifications can be made by those skilled in the art based on the technical idea of the present invention, and all such changes and modifications should fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an accurate pressure regulating electronic pressure controller, is including the casing that has water inlet and delivery port, the control box of setting on the casing and elastic diaphragm, pressure spring, push rod subassembly, the check valve of setting in the casing, the check valve sets up in water inlet department, the casing is including upper cover, well cavity and the base that links together in proper order, the sealed crimping of elastic diaphragm is in between upper cover and the well cavity to form the water pressure chamber in well cavity and base, pressure spring is located the upper cover, and its bottom supports indirectly at least and presses on elastic diaphragm, push rod subassembly sets up and embeds first inductive element with the elastic diaphragm linkage, the built-in control panel of control box is equipped with second inductive element on the control panel, its characterized in that:

2. The precision voltage regulating electronic pressure controller of claim 1, wherein: and an upper limiting clamp spring and a lower limiting clamp spring are embedded in the rod part of the pressure regulating screw rod, and the pressure regulating nut is in threaded connection between the two limiting clamp springs.

3. The precision voltage regulating electronic pressure controller of claim 1, wherein: the upper cover is formed with the step hole that the aperture is greater than the adjusting through-hole at the regulation through-hole towards the downthehole drill way of position sleeve, and the head of pressure regulating screw is equipped with radial bellied positioning flange, positioning flange supports and leans on at the upper cover the step is downthehole.

4. The precision voltage regulating electronic pressure controller of claim 1, wherein: the top end of the head of the pressure regulating screw rod is provided with a straight groove or a cross groove or a hexagonal concave hole.

5. The precision voltage regulation electronic pressure controller of claim 2, wherein: the middle part of the pressure regulating nut protrudes downwards to form a T shape, the protruding part extends into the pressure spring, and the bottom end of the protruding part is provided with an annular clamping groove matched with the lower limiting clamp spring.

6. The precision voltage regulating electronic pressure controller of claim 1, wherein: the push rod assembly comprises a pressing block arranged on the upper surface of the elastic diaphragm, an induction push rod arranged on the lower surface of the elastic diaphragm and a fixing screw, the fixing screw penetrates through the pressing block, the elastic diaphragm and the induction push rod in sequence to fixedly connect the pressing block, the elastic diaphragm and the induction push rod together, the bottom of the pressure spring is pressed on the pressing block, the induction push rod is of a hollow structure, a first induction element is arranged in the induction push rod, and the bottom of the induction push rod is provided with a plug.

7. The precision voltage regulating electronic pressure controller of claim 1 or 6, wherein: the first induction element is magnetic steel, and the second induction element is a reed pipe electrically connected with the control panel.

8. The precision voltage regulating electronic pressure controller of claim 1, wherein: the water inlet is arranged at the bottom of the base, the water outlet is arranged at the left side of the middle cavity, and the control box is arranged at the right side of the middle cavity.