Gate valve airtightness detection device

Abstract

The utility model discloses a gate valve air tightness detection device which comprises a workbench, the left side of the top of the workbench is fixedly connected with a first electric telescopic rod through a support, and the right end of the first electric telescopic rod is fixedly connected with a moving seat. The front side and the rear side of the gate valve are clamped through the clamping mechanism, the input end and the output end of the gate valve are tightly attached to the output end of the high-pressure air pump and the left side of the first baffle respectively through pressure applied by the first electric telescopic rod, then the gate valve is closed, and the high-pressure air pump is started; high-pressure gas is input into the input end of the gate valve of the high-pressure gas pump box, and when the gas leakage condition occurs due to poor gas tightness of the gate valve, the pressure sensor sends out an alarm signal, so that the high-pressure gas is used for detecting the gate valve, the color of the gate valve is prevented from being damaged during detection, the periphery of the gate valve is clamped and fixed during detection, and the fixing effect of the gate valve is improved; the gate valve is prevented from shaking and leaking during detection, and the use of a user is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, concretely is a gate valve air tightness detection device. BACKGROUND

[0002] Gate valve is a shutoff member gate plate, the movement direction of gate plate is perpendicular to the fluid direction, and the gate valve can only be fully opened and closed, and cannot be adjusted and throttled. The gate valve is sealed by the contact between the valve seat and the gate plate, and a metal material is usually built up on the sealing surface to increase the wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate, and according to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] After the production of the gate valve is completed, the air tightness of the gate valve needs to be detected in order to ensure the air tightness effect of the gate valve, and the gate valve with air leakage is taken out for reprocessing to improve the yield of the gate valve product, so that the air tightness detection device needs to be used to check the gate valve. However, the existing detection device affects the appearance color of the gate valve when testing the gate valve by water injection test, and the fixing effect of the gate valve is poor, and the gate valve is prone to shaking and leaking during detection, which brings inconvenience to the user.

[0004] Therefore, it needs to be transformed, and the gate valve is detected by using high-pressure gas, so as to avoid the color damage of the gate valve during detection, and the periphery of the gate valve is clamped and fixed during detection, so as to improve the fixing effect of the gate valve and avoid the shaking and leakage of the gate valve during detection, which is convenient for the user to use. UTILITY MODEL CONTENTS

[0005] In order to solve the problems in the background art, the utility model aims at providing a gate valve air tightness detection device, which has the advantages of detecting the gate valve by using high-pressure gas, avoiding the color damage of the gate valve during detection, clamping and fixing the periphery of the gate valve during detection, improving the fixing effect of the gate valve, avoiding the shaking and leakage of the gate valve during detection, and being convenient for the user to use, which solves the problems of water injection test for the gate valve, affecting the appearance color of the gate valve, poor fixing effect of the gate valve, and easy shaking and leakage of the gate valve during detection, which brings inconvenience to the user.

[0006] To achieve the above object, the utility model provides following technical scheme: a gate valve air tightness detection device, including the workstation, the left side of workstation top is fixedly connected with first electric telescopic link through support, the right end of first electric telescopic link is fixedly connected with mobile seat, the bottom of mobile seat is slidably connected with the top of workstation, the top of mobile seat is fixedly connected with high pressure gas pump, the output of high pressure gas pump faces right side, the top of workstation is slidably connected with mobile platform in mobile seat right side, the front and back of mobile platform are fixedly connected with extension plate, the top of extension plate is fixedly connected with clamping mechanism, the top of workstation is fixedly connected with first baffle in mobile platform right side, the central part of first baffle is provided with vent hole, the top of workstation is fixedly connected with second baffle in first baffle right side, the central part of second baffle is provided with square groove, the right side of vent hole is connected with ventilation pipe, the right end of ventilation pipe is communicated with the left side of square groove, the inside of square groove is hinged with swing plate, the top of workstation is fixedly connected with pressure sensor in swing plate right side through support plate, the output of high pressure gas pump and the central point of vent hole and square groove are on the same axis.

[0007] As the utility model is preferred, the clamping mechanism includes the vertical plate of fixed connection in the outside of the top of extension plate, the left and right sides of vertical plate all are provided with the round hole of front and back through -going, and the inside of round hole is slidably connected with moving link, the inner end of moving link is fixedly connected with clamping plate, the bottom of clamping plate is slidably connected with the top of extension plate, the surface of moving link is equipped with compression spring, and the front and back ends of compression spring are fixedly connected with the inside of vertical plate and the outside of clamping plate respectively.

[0008] As the utility model is preferred, the top of mobile platform is fixedly connected with antiskid pad, the surface of antiskid pad is provided with the even distribution of several numbers antiskid groove, the inside of clamping plate is fixedly connected with rubber pad, and the surface of rubber pad is provided with antiskid line.

[0009] As the utility model is preferred, the surface of high pressure gas pump output is fixedly connected with conical rubber sleeve, and the left side of first baffle is fixedly connected with sealing ring in the outside of vent hole.

[0010] As the utility model is preferred, the front and back of workstation top are all fixedly connected with T-shaped slide rail, and the front and back of mobile seat and mobile platform bottom are all provided with T-shaped groove, and the surface of T-shaped slide rail is slidably connected with the inner wall of T-shaped groove.

[0011] As the utility model is preferred, the four corners of workstation bottom are all fixedly connected with hollow support leg, the top of hollow support leg inner wall is fixedly connected with second electric telescopic link, and the bottom end of second electric telescopic link is fixedly connected with universal wheel.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model opens the clamping mechanism and places the gate valve to be tested on the top of the movable platform, so that the input end of the gate valve faces the movable seat and the output end of the gate valve faces the first baffle. Then, the front and rear sides of the gate valve are clamped by the clamping mechanism so that the left and right ends are kept flush. Then, the first electric telescopic rod is started to extend and drive the movable seat to move to the right. The right movement of the movable seat drives the high-pressure air pump to move to the right, so that the output end of the high-pressure air pump fits with the input end of the gate valve. Then, the first electric telescopic rod continues to extend, pushing the gate valve and the movable platform to move to the right. The gate valve continues to move to the right and its output end contacts the first baffle. The output end of the gate valve is connected to the vent. The pressure applied by the first electric telescopic rod makes the input end and The output end is tightly fitted with the output end of the high-pressure air pump and the left side of the first baffle respectively, and then the gate valve is closed, the high-pressure air pump is started, and high-pressure gas is input through the input end of the gate valve of the high-pressure air pump box. When the gate valve has poor air tightness and leakage occurs, gas is generated at its output end, and the gas is blown to the swing plate through the ventilation pipe. The swing plate is blown by the gas and the lower end swings to the right and contacts the pressure sensor. The pressure sensor sends an alarm signal, otherwise the swing plate will not swing, proving that the air tightness of the gate valve is qualified, thereby achieving the effect of using high-pressure gas to test the gate valve, avoiding damage to the gate valve during testing, clamping and fixing the gate valve on all sides during testing, improving the fixing effect of the gate valve, avoiding shaking and leakage of the gate valve during testing, and making it convenient for users to use.

[0014] 2. The utility model is used in conjunction with the vertical plate, the moving rod, the clamping plate and the compression spring. When the gate valve needs to be inspected, the two moving rods are pulled outward to drive the two clamping plates away from each other, and the movable platform is opened to facilitate the placement of the gate valve on the movable platform. After the gate valve is placed, the moving rod is released, and the clamping plate moves inward under the pressure of the compression spring and contacts the surface of the gate valve, clamping and fixing the front and rear sides thereof, thereby ensuring the inspection effect and being convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the right side sectional structure of the utility model.

[0019] In the figure: 1, workbench; 2, first electric telescopic rod; 3, moving seat; 4, high-pressure air pump; 5, moving table; 6, extension plate; 7, clamping mechanism; 8, first baffle; 9, ventilation hole; 10, second baffle; 11, square groove; 12, ventilation pipe; 13, swing plate; 14, pressure sensor; 15, vertical plate; 16, moving rod; 17, clamping plate; 18, compression spring; 19, non-slip pad; 20, rubber pad; 21, conical rubber sleeve; 22, sealing ring; 23, T-shaped slide rail; 24, T-shaped groove; 25, hollow leg; 26, second electric telescopic rod; 27, universal wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As Figures 1 to 4 shown, the utility model provides a gate valve air tightness detection device, including workbench 1, the left side of workbench 1 top is fixedly connected with first electric telescopic rod 2 through support, the right end of first electric telescopic rod 2 is fixedly connected with moving seat 3, and the bottom of moving seat 3 is slidably connected with the top of workbench 1, and the top of moving seat 3 is fixedly connected with high-pressure air pump 4, and the output end of high-pressure air pump 4 faces right side, and the top of workbench 1 is slidably connected with moving table 5 at the right side of moving seat 3, and the front and back of moving table 5 are all fixedly connected with extension plate 6, and the top of extension plate 6 is fixedly connected with clamping mechanism 7, and the top of workbench 1 is fixedly connected with first baffle 8 at the right side of moving table 5, and the central part of first baffle 8 is provided with ventilation hole 9, and the top of workbench 1 is fixedly connected with second baffle 10 at the right side of first baffle 8, and the central part of second baffle 10 is provided with square groove 11, and the right side of ventilation hole 9 is connected with ventilation pipe 12, and the right end of ventilation pipe 12 is communicated with the left side of square groove 11, and the inside of square groove 11 is hinged with swing plate 13, and the top of workbench 1 is fixedly connected with pressure sensor 14 at the right side of swing plate 13 through support plate, and the output end of high-pressure air pump 4 and the center point of ventilation hole 9 and square groove 11 are on the same axis.

[0022] Reference Figure 1The clamping mechanism 7 comprises a vertical plate 15 fixedly connected to the top outer side of the extension plate 6, circular holes are formed in the left and right sides of the vertical plate 15 and extend through the front and back, and a moving rod 16 is slidably connected in the circular holes, the inner end of the moving rod 16 is fixedly connected with a clamping plate 17, the bottom of the clamping plate 17 is slidably connected with the top of the extension plate 6, and a compression spring 18 is sleeved on the surface of the moving rod 16 and fixedly connected with the inner side of the vertical plate 15 and the outer side of the clamping plate 17.

[0023] As a technical optimization scheme of the utility model, when the gate valve needs to be detected, the two moving rods 16 are pulled outward to drive the two clamping plates 17 to move away from each other, the moving table 5 is opened, the gate valve is conveniently placed on the moving table 5, the moving rod 16 is released after the gate valve is placed, the clamping plate 17 is moved inward under the pressure of the compression spring 18 and is in contact with the surface of the gate valve to clamp and fix the front and back sides of the gate valve, the detection effect is ensured, and the user is conveniently used.

[0024] Reference Figure 3 The top of the moving table 5 is fixedly connected with a non-slip pad 19, a plurality of non-slip grooves are formed on the surface of the non-slip pad 19, the inner side of the clamping plate 17 is fixedly connected with a rubber pad 20, and anti-skid lines are formed on the surface of the rubber pad 20.

[0025] As a technical optimization scheme of the utility model, when the gate valve needs to be detected, the two moving rods 16 are pulled outward to drive the two clamping plates 17 to move away from each other, the moving table 5 is opened, the gate valve is conveniently placed on the moving table 5, the moving rod 16 is released after the gate valve is placed, the clamping plate 17 is moved inward under the pressure of the compression spring 18 and is in contact with the surface of the gate valve to clamp and fix the front and back sides of the gate valve, the detection effect is ensured, and the user is conveniently used.

[0026] Reference Figure 3 The surface of the output end of the high-pressure air pump 4 is fixedly connected with a conical rubber sleeve 21, and the left side of the first baffle 8 is fixedly connected with a sealing ring 22 located outside the ventilation hole 9.

[0027] As a technical optimization scheme of the utility model, when the gate valve needs to be detected, the two moving rods 16 are pulled outward to drive the two clamping plates 17 to move away from each other, the moving table 5 is opened, the gate valve is conveniently placed on the moving table 5, the moving rod 16 is released after the gate valve is placed, the clamping plate 17 is moved inward under the pressure of the compression spring 18 and is in contact with the surface of the gate valve to clamp and fix the front and back sides of the gate valve, the detection effect is ensured, and the user is conveniently used.

[0028] Reference Figure 1The top of the workbench 1 is fixedly connected with T-shaped sliding rails 23 on the front and back sides, and the bottom of the moving seat 3 and the moving table 5 is provided with T-shaped grooves 24 on the front and back sides, and the surface of the T-shaped sliding rail 23 is in sliding connection with the inner wall of the T-shaped groove 24.

[0029] As a technical optimization scheme of the utility model, the cooperation of the T-shaped sliding rail 23 and the T-shaped groove 24 can limit and reinforce the moving seat 3 and the moving table 5, so that the moving seat 3 and the moving table 5 can only move left and right on the top of the workbench 1, avoiding the deviation and shaking of the moving seat 3 and the moving table 5 during movement, and affecting the detection effect.

[0030] Reference Figure 4 The bottom of the workbench 1 is fixedly connected with hollow supporting legs 25 at four corners, the inner wall of the hollow supporting leg 25 is fixedly connected with a second electric telescopic rod 26 at the top, and the bottom of the second electric telescopic rod 26 is fixedly connected with a universal wheel 27.

[0031] As a technical optimization scheme of the utility model, when the device needs to be moved, the second electric telescopic rod 26 can be started to stretch, driving the universal wheel 27 to move downward, so that the bottom of the universal wheel 27 is in contact with the ground, facilitating the pushing of the device, and vice versa, the second electric telescopic rod 26 can be retracted to make the universal wheel 27 enter the internal fixing device of the hollow supporting leg 25, facilitating the use of the user.

[0032] The working principle and use process of the utility model: through opening the clamping mechanism 7, the gate valve needing to be detected is placed above the moving table 5, the input end of the gate valve faces the moving seat 3, the output end of the gate valve faces the first baffle 8, then the front and back sides of the gate valve are clamped through the clamping mechanism 7, the left and right ends keep flush, then the first electric telescopic rod 2 is started, the moving seat 3 is driven to move right, the high-pressure air pump 4 is driven to move right, the output end of the high-pressure air pump 4 is attached to the input end of the gate valve, then the first electric telescopic rod 2 continues to extend, the gate valve and the moving table 5 are pushed to move right, the output end of the gate valve contacts the first baffle 8, the output end of the gate valve is communicated with the ventilation hole 9, the pressure applied by the first electric telescopic rod 2 makes the input end and the output end of the gate valve respectively tightly attached to the output end of the high-pressure air pump 4 and the left side of the first baffle 8, then the gate valve is closed, the high-pressure air pump 4 is started, high-pressure gas is input into the input end of the gate valve through the high-pressure air pump 4, when the gate valve is poor in air tightness and gas leakage occurs, gas is generated at the output end, the gas is blown to the swing plate 13 through the ventilation pipe 12, the swing plate 13 swings right at the lower end under the blowing of the gas, contacts the pressure sensor 14, the pressure sensor 14 sends an alarm signal, otherwise the swing plate 13 does not swing, proving that the gate valve is qualified in air tightness, thereby achieving the effect that the gate valve is detected using high-pressure gas, avoiding that the gate valve is damaged in color during detection, clamping and fixing the gate valve around during detection, improving the fixing effect of the gate valve, avoiding that the gate valve shakes and leaks during detection, facilitating the use of the user.

[0033] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the utility model have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the air tightness of a gate valve, comprising a worktable (1), characterized in that: The left side of the top of the workbench (1) is fixedly connected with a first electric telescopic rod (2) through a support, the right end of the first electric telescopic rod (2) is fixedly connected with a moving seat (3), the bottom of the moving seat (3) is in sliding connection with the top of the workbench (1), the top of the moving seat (3) is fixedly connected with a high-pressure air pump (4), the top of the workbench (1) is in sliding connection with a moving table (5) located at the right side of the moving seat (3), the front and back of the moving table (5) are fixedly connected with extension plates (6), the top of the extension plate (6) is fixedly connected with a clamping mechanism (7), the top of the workbench (1) is fixedly connected with a first baffle (8) located at the right side of the moving table (5), the central part of the first baffle (8) is provided with a ventilation hole (9), the top of the workbench (1) is fixedly connected with a second baffle (10) located at the right side of the first baffle (8), the central part of the second baffle (10) is provided with a square groove (11), the right side of the ventilation hole (9) is in communication with a ventilation pipe (12), the right end of the ventilation pipe (12) is in communication with the left side of the square groove (11), the inside of the square groove (11) is hingedly connected with an oscillating plate (13), and the top of the workbench (1) is fixedly connected with a pressure sensor (14) located at the right side of the oscillating plate (13) through a support plate.

2. The device for detecting the air tightness of a gate valve according to claim 1, characterized in that: The clamping mechanism (7) comprises a vertical plate (15) fixedly connected to the top outer side of the extension plate (6), the left and right sides of the vertical plate (15) are provided with front and rear through holes, and the inside of the through hole is in sliding connection with a moving rod (16), the inner end of the moving rod (16) is fixedly connected with a clamping plate (17), the bottom of the clamping plate (17) is in sliding connection with the top of the extension plate (6), and the surface of the moving rod (16) is provided with a compression spring (18).

3. The device of claim 2, wherein: The top of the moving table (5) is fixedly connected with a non-slip pad (19), the surface of the non-slip pad (19) is provided with a plurality of evenly distributed anti-skid grooves, the inner side of the clamping plate (17) is fixedly connected with a rubber pad (20), and the surface of the rubber pad (20) is provided with anti-skid lines.

4. The device of claim 1, wherein: The surface of the output end of the high-pressure air pump (4) is fixedly connected with a conical rubber sleeve (21), and the left side of the first baffle (8) is fixedly connected with a sealing ring (22) located outside the ventilation hole (9).

5. The device of claim 1, wherein: The front and back of the top of the workbench (1) are fixedly connected with T-shaped sliding rails (23), and the front and back of the bottom of the moving seat (3) and the moving table (5) are provided with T-shaped grooves (24).

6. The device of claim 1, wherein: The bottom of the workbench (1) is fixedly connected with hollow supporting legs (25) at four corners, the top of the inner wall of the hollow supporting leg (25) is fixedly connected with a second electric telescopic rod (26), and the bottom end of the second electric telescopic rod (26) is fixedly connected with a universal wheel (27).

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