CN210073712U

CN210073712U - Straight-line pressure switch with non-return function

Info

Publication number: CN210073712U
Application number: CN201921321082.4U
Authority: CN
Inventors: 严尚军
Original assignee: Foshan Jungais Plastic Products Co Ltd
Current assignee: Foshan Jungais Plastic Products Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-02-14
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a straight-line pressure switch with non-return function, which comprises a shell, wherein the bottom end of the shell is provided with a base, the top of the base is provided with a diaphragm, the top of the diaphragm is provided with a baffle plate, the top of the baffle plate is provided with a pressing strip, the top of the pressing strip is provided with a micro-gap switch, one side of the base is provided with a water inlet, the other side is provided with a water outlet, the water inlet is provided with a non-return valve, the outer side of the non-return valve is provided with a lining, the outer side of the lining is provided with a first sealing; the I-shaped design enables a user to use the existing machine type without any change; the compression amount of the spring can be adjusted by screwing the inner hexagonal countersunk head adjusting screw to adapt to wider water pressure and machine types, and when the rear end pressure is greater than the front end pressure, the check valve blocks the transmission of the rear end pressure back to the water inlet end to protect front end components. The check valve adopts a spring type check structure, so that the pressure drop is effectively reduced, and the water passing amount and the sealing performance are greatly improved.

Description

Straight-line pressure switch with non-return function

Technical Field

The utility model relates to a switch field specifically is a take a style of calligraphy pressure switch of contrary function.

Background

The common high-voltage switch at present comprises a shell, a microswitch, a rubber diaphragm, a pressure spring, a top, a pressure plate, a rocker and the like. Generally, a pressure switch of the water purifier is connected in series between a check valve and a faucet of a pure water port through a standard pipe fitting, and a connection port is connected with a circuit board to control the opening and closing of a booster pump. The switch contact is normally closed, when the water pressure reaches a certain value, the membrane jacks up the top plate, the rotating shaft displacement of the top plate upwards touches the micro switch contact, and the circuit is disconnected at the moment.

The common high-voltage switch consists of a check valve and a high-voltage switch, a plurality of connected interfaces and pipelines are provided, and one more connecting piece has twice leakage risks; the occupied space is large, and the production and assembly efficiency is low.

Aiming at the characteristics of the system used in the current industry, the structure of parts should be simplified as much as possible: the high-voltage switch and the check valve are integrated, so that the leakage risk is reduced by reducing the number of parts; the product is universal on the premise that a user does not make any design change, and the assembly cost of the production link is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take contrary straight line type pressure switch who ends function to solve the problem that the infiltration risk that above-mentioned background art provided is high, assembly efficiency is low.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take a style of calligraphy pressure switch of contrary function, shell, the shell bottom is equipped with the base, the base top is equipped with the diaphragm, the diaphragm top is equipped with the baffle, the baffle top is equipped with the layering, the layering top is equipped with micro-gap switch, one side of base is equipped with the water inlet, and the opposite side is equipped with the delivery port, the water inlet is equipped with the check valve, the check valve outside is equipped with the bush, the bush outside is equipped with first sealing washer, the first sealing washer outside is equipped with the welding lid, the welding lid outside is equipped with the jack catch, the jack catch outside is equipped with blue card.

As a preferred technical scheme of the utility model, base top corner is equipped with self-tapping screw, be equipped with the spring on the layering, the spring top is connected with the spring cushion, be equipped with hexagon socket countersunk head adjusting screw on the spring cushion.

As an optimal technical scheme of the utility model, the diaphragm with be formed with lower cavity between the base, the diaphragm with be formed with the upper plenum body between the baffle.

As a preferred technical scheme of the utility model, the check valve with be equipped with the second sealing washer between the base hole, the inside push rod that is equipped with of check valve, push rod one end is equipped with the third sealing washer, the check valve inner wall is equipped with sealed inclined plane.

As a preferred technical scheme of the utility model, the shell with the base passes through self tapping screw and fixes linking to each other, the baffle with the base passes through bolt fixed connection, the layering with the baffle passes through guide way sliding connection, hexagon socket head countersunk head adjusting screw the spring cushion the spring with zonulae occludens between the layering.

As an optimal technical scheme of the utility model, the welding lid with the base passes through ultrasonic wave process welding, the bush with the inside ladder of base is spacing fixed mutually, be provided with medium flow hole on the bush, the push rod with check valve inner wall swing joint.

Compared with the prior art, the beneficial effects of the utility model are that:

the product is a linear pressure switch with a non-return function, and the on-off of a circuit is controlled by sensing the water path high pressure; the action value corresponding to the pressure is adjustable; the pressure switch and the check valve are combined, so that the water path of the whole machine is simplified, and the production efficiency is improved; the I-shaped design enables a user to use the existing machine type without any change;

1. the compression amount of the spring can be adjusted by screwing the inner hexagonal countersunk head adjusting screw to adapt to wider water pressure and machine types, and when the rear end pressure is greater than the front end pressure, the check valve blocks the transmission of the rear end pressure back to the water inlet end to protect front end components.

2. The check valve adopts a spring type check structure, so that the pressure drop is effectively reduced, and the water passing amount and the sealing performance are greatly improved.

Drawings

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

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a partial schematic view of the check valve of the present invention;

in the figure: 1. the sealing device comprises a shell, 2, a microswitch, 3, a pressing strip, 4, a baffle, 5, a diaphragm, 6, a base, 7, an inner hexagonal countersunk head adjusting screw, 8, a spring rubber cushion, 9, a spring, 10, a self-tapping screw, 11, a check valve, 12, a lining, 13, a first sealing ring, 14, a welding cover, 15, a clamping jaw, 16, a blue clamp, 17, a water inlet, 18, a water outlet, 19, a lower cavity, 20, an upper cavity, 1101, a second sealing ring, 1102, a push rod, 1103, a sealing inclined plane, 1104 and a third sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a take straight type pressure switch of contrary function, which comprises an

outer shell

1, 1 bottom of shell is equipped with

base

6, 6 tops of base are equipped with

diaphragm

5, 5 tops of diaphragm are equipped with

baffle

4, 4 tops of baffle are equipped with

layering

3, 3 tops of layering are equipped with micro-gap switch 2, one side of base 6 is equipped with water inlet 17, the opposite side is equipped with delivery port 18, water inlet 17 is equipped with check valve 11, the 11 outsides of check valve are equipped with bush 12, the bush 12 outside is equipped with first sealing washer 13, the 13 outsides of first sealing washer are equipped with welding lid 14, the 14 outsides of welding lid are equipped with jack catch 15, the 15 outsides of jack catch.

6 top corners of base are equipped with self-tapping screw 10, are equipped with spring 9 on the layering 3, and spring 9 top is connected with spring cushion 8, is equipped with hexagon socket head countersunk head adjusting screw 7 on the spring cushion 8, and hexagon socket head countersunk head adjusting screw 7 height can adjust spring 9's compressive force through the hexagonal instrument regulation.

A lower cavity 19 is formed between the diaphragm 5 and the base 6, an upper cavity 20 is formed between the diaphragm 5 and the baffle 4, and when the pressure of the lower cavity 19 is overlarge, the diaphragm 5 rises, so that the pressing strip 3 is pushed to rise, and the micro switch 2 is triggered to turn off the switch.

A second sealing ring 1101 is arranged between the check valve 11 and an inner hole of the base 6, a push rod 1102 is arranged inside the check valve 11, a third sealing ring 1104 is arranged at one end of the push rod 1102, a sealing inclined plane 1103 is arranged on the inner wall of the check valve 11, and double sealing rings effectively prevent leakage of a water outlet.

Shell 1 and base 6 pass through self-tapping screw 10 fixed linking to each other, and baffle 4 passes through bolt fixed connection with base 6, and layering 3 passes through guide way sliding connection with baffle 4, zonulae occludens between hexagon socket countersunk head adjusting screw 7, spring cushion 8, spring 9 and the layering 3, accessible layering 3, spring cushion 8 and the mutual linkage of spring 9 give micro-gap switch 2 with water pressure information transfer.

The welding cover 14 is welded with the base 6 through an ultrasonic process, the lining 12 is fixed with the inner step limit of the base 6, the structure is simple, the sealing performance is good, fixing parts such as bolts are avoided, and the later maintenance is easy; the lining 12 is provided with a medium flow hole, and the push rod 1102 is movably connected with the inner wall of the check valve 11.

The working principle is as follows: a straight-line pressure switch with a non-return function comprises a shell 1, a micro switch 2, a pressing strip 3, a baffle 4, a diaphragm 5, a base 6, an inner hexagonal countersunk head adjusting screw 7, a spring rubber cushion 8, a spring 9, a self-tapping screw 10, a non-return valve 11, a lining 12, a first sealing ring 13, a welding cover 14, a clamping jaw 15, a blue clamping jaw 16, a water inlet 17, a water outlet 18, a lower cavity 19, an upper cavity 20, a second sealing ring 1101, a push rod 1102, a sealing inclined plane 1103 and a third sealing ring 1104, wherein the compression force of the spring 9 can be adjusted by adjusting the height of the inner hexagonal countersunk head adjusting screw 7 through a hexagonal tool, and medium pressure is transmitted to the pressing strip 3 of the upper cavity through the diaphragm in the lower cavity, so that the moment for pushing the pressing strip 3 by water is adjusted and defined as starting pressure and; the medium can only flow in one direction through the water inlet 17, the check valve 11 and the water outlet 18; when the direction is reversed, the inner push rod 1102 is returned under the action of the spring force, the second seal ring 1101 presses the sealing inclined surface 1103, and the medium cannot flow back. When the water pressure reaches a certain value, water flow enters the lower cavity 19 through the base 6 to generate pressure on the diaphragm 5, the diaphragm 5 deforms and protrudes to push the pressing strip 3 to move upwards, and the spring is compressed to trigger the micro switch 2 to disconnect a circuit; when the water pressure is reduced, the compressed spring 9 returns to push the pressing strip 3 and the ejector button to move downwards, and the diaphragm 5 is restored to the original state; the action value of the switch can be adjusted within a certain range by adjusting the inner hexagonal countersunk head screw 7 so as to adapt to wider water pressure and machine types; the one-font design allows a user to use an existing font without any change.

the compression amount of the spring can be adjusted by screwing the inner hexagonal countersunk head adjusting screw to adapt to wider water pressure and machine types, and when the rear end pressure is greater than the front end pressure, the check valve blocks the rear end pressure from being transmitted back to the water inlet end to protect front end components; the check valve adopts a spring type check structure, so that the pressure drop is effectively reduced, and the water passing amount and the sealing performance are greatly improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a take contrary straight type pressure switch of function that ends, includes shell (1), its characterized in that: shell (1) bottom is equipped with base (6), base (6) top is equipped with diaphragm (5), diaphragm (5) top is equipped with baffle (4), baffle (4) top is equipped with layering (3), layering (3) top is equipped with micro-gap switch (2), one side of base (6) is equipped with water inlet (17), and the opposite side is equipped with delivery port (18), water inlet (17) are equipped with check valve (11), the check valve (11) outside is equipped with bush (12), bush (12) outside is equipped with first sealing washer (13), first sealing washer (13) outside is equipped with welding lid (14), welding lid (14) outside is equipped with jack catch (15), jack catch (15) outside is equipped with blue card (16).

2. The linear pressure switch with the non-return function according to claim 1, characterized in that: base (6) top corner is equipped with self-tapping screw (10), be equipped with spring (9) on layering (3), spring (9) top is connected with spring cushion (8), be equipped with hexagon socket head countersunk head adjusting screw (7) on spring cushion (8).

3. The linear pressure switch with the non-return function according to claim 1, characterized in that: a lower cavity (19) is formed between the diaphragm (5) and the base (6), and an upper cavity (20) is formed between the diaphragm (5) and the baffle (4).

4. The linear pressure switch with the non-return function according to claim 1, characterized in that: check valve (11) with be equipped with second sealing washer (1101) between base (6) the hole, inside push rod (1102) that is equipped with of check valve (11), push rod (1102) one end is equipped with third sealing washer (1104), check valve (11) inner wall is equipped with sealed inclined plane (1103).

5. The linear pressure switch with the non-return function according to claim 2, characterized in that: shell (1) with base (6) are fixed continuous through self-tapping screw (10), baffle (4) with base (6) pass through bolt fixed connection, layering (3) with baffle (4) pass through guide way sliding connection, hexagon socket head countersunk head adjusting screw (7) spring cushion (8) spring (9) with zonulae occludens between layering (3).

6. The linear pressure switch with the non-return function according to claim 4, characterized in that: the welding cover (14) and the base (6) are welded through an ultrasonic process, the lining (12) is fixed with the inner stepped limiting position of the base (6), a medium circulation hole is formed in the lining (12), and the push rod (1102) is movably connected with the inner wall of the check valve (11).