Pressure switch convenient to maintain

Abstract

The utility model relates to the technical field of pressure control devices, in particular to a pressure switch convenient to maintain, which comprises a pressure switch base, and a sliding connecting piece is connected in the pressure switch base in a penetrating manner. Firstly, pressure extrudes an induction air bag to enable air in the induction air bag to enter a sliding connecting piece along a communicating air valve, then a closed sliding plate on the side wall of the sliding connecting piece is pushed to move towards the other side, and a limiting sliding rod horizontally moves under limitation of a limiting groove and a sliding limiting piece; when maintenance is carried out, the connection state of the first connecting plate and the second mounting plate at the top end of the pressure switch base is removed, and the interior of the pressure switch is maintained by taking out the sealed plug-in mounted in the sealed mounting groove. And moisture entering the interior along the gaps is absorbed through the moisture-proof bin, so that moisture is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure control device technical field, concretely relates to a pressure switch convenient to maintain. BACKGROUND

[0002] Pressure switch is a simple pressure control device, when the measured pressure reaches the rated value, pressure switch can send warning or control signal, the working principle of pressure switch is when the measured pressure exceeds the rated value, the free end of elastic element produces displacement, directly or after comparison push switch element, change the on-off state of switch element, reach the purpose of controlling the measured pressure, pressure switch adopts high-precision, high-stability pressure sensor and transmission circuit, and then through the special CPU modular signal processing technology, realize the detection, display, alarm and control signal output to medium pressure signal.

[0003] The utility model discloses a kind of pressure switches convenient to maintain, which is disclosed in publication number CN210489518U. By cooperating the use of plugboard, box body, through slot, jack, slot, spring, moving plate, transmission rod and plug rod, the problem of inconvenient maintenance of existing pressure switches is solved. The pressure switch convenient to maintain has the advantage of convenient maintenance. During maintenance, the pressure switch can be quickly disassembled and repaired, improving the work efficiency of maintenance personnel. It also reduces the work intensity of maintenance personnel, does not bring a certain degree of difficulty to maintenance personnel, and is worth popularizing and using. However, the structure for easy disassembly of the device uses airtight protection structure. After long-term use, dust and moisture in humid weather may enter the internal part of the device, affecting the precision of the device and the accuracy of the sensing, resulting in errors of the device and affecting use. Therefore, we propose a pressure switch convenient to maintain. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a pressure switch convenient to maintain.

[0005] The utility model solves the technical problems by adopting the technical scheme of a pressure switch convenient to maintain, which comprises a pressure switch base. A sliding connecting piece is connected through the inside of the pressure switch base. A limiting sliding rod is slidingly connected in the inside of the sliding connecting piece. A communication air valve is connected through one side of the sliding connecting piece. An induction air bag is connected through one end of the communication air valve away from the sliding connecting piece. The induction air bag is fixedly installed on the side wall of the pressure switch base.

[0006] The top end of the pressure switch base is fixedly connected with a first connecting plate, a sealing installation groove is formed in the top end of the first connecting plate, a sealing plug is detachably installed in the sealing installation groove, a second installation plate is detachably installed at the top end of the first connecting plate, a signal output interface is fixedly connected to the top end of the second installation plate, and a groove matching the sealing plug is formed in the bottom end of the signal output interface.

[0007] By adopting the above technical scheme, firstly, the pressure extrusion sensing air bag makes the gas in the inside enter the inside of the sliding connecting piece along the communication air valve, then the sealing sliding plate of the sliding connecting piece side wall is pushed to move to the other side, the limiting sliding rod is horizontally displaced under the limitation of the limiting groove and the sliding limiting piece, and finally is extruded to contact the trigger sensing piece to trigger the sensing switch, and the sensing signal is sent out through the signal output interface. When overhauling, the connection state of the first connecting plate and the second installation plate at the top end of the pressure switch base is removed, the inside is overhauled by taking out the sealing plug installed in the sealing installation groove, and the moisture in the inside is absorbed by the moisture-proof bin to avoid moisture.

[0008] Specifically, the trigger sensing piece is fixedly installed in the inside of the sliding connecting piece away from the communication air valve.

[0009] By adopting the above technical scheme, the signal is sent out by the trigger sensing piece being extruded and triggered to alarm or trigger the switch.

[0010] Specifically, the outer periphery of the sliding connecting piece is fixedly connected with a limiting groove, the sliding limiting piece is slidably connected in the inside of the limiting groove, and the sliding limiting piece is fixedly connected to the outer wall of the limiting sliding rod.

[0011] By adopting the above technical scheme, the limiting sliding rod moves in the limiting area in the sliding connecting piece by the sliding limiting piece cooperating with the limiting groove.

[0012] Specifically, the signal output interface is electrically connected with the trigger sensing piece.

[0013] By adopting the above technical scheme, the signal output to the outside world is triggered by the signal output interface.

[0014] Specifically, the limiting sliding rod is fixedly connected with a sealing sliding plate at both ends.

[0015] By adopting the above technical scheme, the sealing sliding plate moves in the sliding connecting piece to extrude the trigger sensing piece to send out the signal by receiving the air pressure.

[0016] Specifically, the signal output interface is internally assembled with a water-absorbing moisture-proof material.

[0017] By adopting the technical scheme, water vapor entering the inside along the joint gap is absorbed by the water absorption and moisture-proof material to avoid entering the inside to cause errors in equipment precision.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] The technical scheme of the application extrudes the sensing air bag by pressure to make the gas in the sensing air bag enter the inside of the sliding connecting piece along the communication air valve, then push the sealed sliding plate of the sliding connecting piece side wall to move to the other side, the limiting sliding rod is horizontally displaced under the limitation of the limiting groove and the sliding limiting piece, and finally is extruded to contact the trigger sensing piece to trigger the sensing switch, and the sensing signal is sent out through the signal output interface, when overhauling, the connection state of the first connecting plate and the second mounting plate at the top of the pressure switch base is removed, the sealed plug-in part installed in the sealed installation groove is taken out to overhaul the inside, and the moisture-proof bin is used to absorb the water vapor entering the inside along the gap to avoid moisture. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further described below in combination with the drawings and embodiments.

[0021] Fig. 1 It is the axonometric drawing of the utility model;

[0022] Fig. 2 It is the whole structure plane schematic view of the utility model equipment;

[0023] Fig. 3 It is the structure split schematic view of the first connecting plate and the second connecting plate of the utility model;

[0024] In the drawing: 1, pressure switch base; 2, sliding connecting piece; 3, limiting sliding rod; 4, sealed sliding plate; 5, limiting groove; 6, sliding limiting piece; 7, communication air valve; 8, sensing air bag; 9, trigger sensing piece; 10, first connecting plate; 11, sealed installation groove; 12, sealed plug-in part; 13, moisture-proof bin; 14, second mounting plate; 15, signal output interface. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] Please refer to Figs. 1-3The utility model discloses an embodiment provides a technical scheme: a pressure switch convenient to maintenance, including pressure switch base 1, the inside through connection of pressure switch base 1 is connected with sliding connecting piece 2, the inside sliding connection of sliding connecting piece 2 is limited to limit sliding rod 3, one side of sliding connecting piece 2 is connected with the through connection of communication air valve 7, the one end of communication air valve 7 is away from sliding connecting piece 2 and is connected with the through connection of response air bag 8, and response air bag 8 is fixedly installed on the side wall of pressure switch base 1,

[0027] The top of the pressure switch base 1 is fixedly connected with a first connecting plate 10, the top of the first connecting plate 10 is provided with a sealing installation groove 11, and the inside of the sealing installation groove 11 is detachably installed with a sealing plug 12; the top of the first connecting plate 10 is detachably installed with a second installation plate 14, the top of the second installation plate 14 is fixedly connected with a signal output interface 15, and the bottom of the signal output interface 15 is provided with a groove matched with the sealing plug 12.

[0028] In use, first, the pressure extrudes the response air bag 8 to make the gas in the inside of the response air bag 8 enter the inside of the sliding connecting piece 2 along the communication air valve 7, then the sealing sliding plate 4 on the side wall of the sliding connecting piece 2 is pushed to move to the other side, the limit sliding rod 3 is horizontally displaced under the limitation of the limit groove 5 and the sliding limiting piece 6, and finally is extruded to contact the trigger type sensing piece 9 to trigger the sensing switch, and the sensing signal is sent out through the signal output interface 15; when being overhauled, the connection state of the first connecting plate 10 and the second installation plate 14 at the top of the pressure switch base 1 is removed, the inside is overhauled by taking out the sealing plug 12 installed in the sealing installation groove 11, and the moisture in the inside is avoided by absorbing the moisture entering the inside along the gap through the moisture-proof bin 13.

[0029] As shown in the drawings, the inside of the sliding connecting piece 2 is fixedly installed with the trigger type sensing piece 9 away from one side of the communication air valve 7.

[0030] In use, the trigger type sensing piece 9 is extruded to trigger to send out the signal to alarm or trigger the switch.

[0031] As shown in the drawings, the outer periphery of the sliding connecting piece 2 is fixedly connected with the limit groove 5, the inside of the limit groove 5 is slidably connected with the sliding limiting piece 6, and the sliding limiting piece 6 is fixedly connected to the outer wall of the limit sliding rod 3.

[0032] In use, the limit sliding rod 3 moves in the limiting area in the sliding connecting piece 2 by the cooperation of the sliding limiting piece 6 and the limit groove 5.

[0033] As shown in the drawings, the signal output interface 15 is installed through the side wall of the pressure switch base 1 away from the response air bag 8, and the signal output interface 15 is electrically connected with the trigger type sensing piece 9.

[0034] In use, the pressure triggered signal output to the outside through the signal output interface 15.

[0035] As shown, the two ends of the limiting sliding rod 3 are fixedly connected with the closed sliding plate 4.

[0036] In use, the closed sliding plate 4 is moved in the sliding connecting piece 2 by receiving the air pressure push to extrude the trigger type sensing piece 9 to send out the signal.

[0037] As shown, the inside of the signal output interface 15 is assembled with the water absorption moisture-proof material.

[0038] In use, the water vapor entering the inside along the joint gap is absorbed by the water absorption moisture-proof material to avoid entering the inside to cause the equipment precision error.

[0039] The working principle and use process of the utility model are as follows: firstly, the pressure extrusion sensing air bag 8 makes the gas in the inside enter the inside of the sliding connecting piece 2 along the communicating air valve 7, then pushes the closed sliding plate 4 of the side wall of the sliding connecting piece 2 to move to the other side, the limiting sliding rod 3 is horizontally displaced under the limitation of the limiting groove 5 and the sliding limiting piece 6, and is finally extruded to contact the trigger type sensing piece 9 to trigger the sensing switch, and the sensing signal is sent out through the signal output interface 15, when overhauling, the connection state of the first connecting plate 10 at the top of the pressure switch base 1 and the second mounting plate 14 is removed, the inside is overhauled by taking out the closed plug-in part 12 installed in the sealed mounting groove 11, and the water vapor entering the inside along the gap is absorbed by the moisture-proof bin 13 to avoid dampness.

[0040] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A pressure switch which is easy to repair, characterized in that The utility model relates to a pressure switch base (1) is connected with the sliding connecting piece (2) in the inside through, the inside of sliding connecting piece (2) is connected with the limit sliding rod (3) of sliding connection, one side of sliding connecting piece (2) is connected with the communication air valve (7) through, the one end of communication air valve (7) is connected with the inductive air bag (8) through away from sliding connecting piece (2), and inductive air bag (8) is fixedly installed on the side wall of pressure switch base (1); The top of pressure switch base (1) is fixedly connected with first connecting plate (10), and the top of first connecting plate (10) is provided with sealed installation groove (11), and the inside of sealed installation groove (11) is detachably installed with sealed plug-in component (12), and the top of first connecting plate (10) is detachably installed with second installation plate (14), and the top of second installation plate (14) is fixedly connected with signal output interface (15), and the bottom of signal output interface (15) is provided with recess that is in accord with sealed plug-in component (12).

2. A pressure switch for facilitating maintenance according to claim 1, characterized in that The inside of sliding connecting piece (2) is fixedly installed with trigger type inductive part (9) away from one side of communication air valve (7).

3. A pressure switch for facilitating maintenance according to claim 1, wherein The outer periphery of sliding connecting piece (2) is fixedly connected with limit groove (5), and the inside of limit groove (5) is slidably connected with sliding limit part (6), and the outer wall of limit sliding rod (3) is fixedly connected with sliding limit part (6).

4. A pressure switch for facilitating maintenance according to claim 2, wherein The one end side wall of pressure switch base (1) is connected with signal output interface (15) away from inductive air bag (8), and signal output interface (15) is electrically connected with trigger type inductive part (9).

5. The pressure switch of claim 1 wherein, The both ends of limit sliding rod (3) are fixedly connected with sealed sliding plate (4).

6. A pressure switch for facilitating maintenance according to claim 1, wherein The inside of signal output interface (15) is assembled with water absorption moisture-proof material.

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