Air tightness detection device for pressure gauge

Abstract

The utility model relates to the technical field of pressure gauge air tightness detection, and provides a pressure gauge air tightness detection device which comprises a bottom plate, the top of the outer surface of the bottom plate is fixedly connected with a second pipeline, the outer surface of the second pipeline is rotatably connected with a threaded rod through a bearing, and the outer surface of the threaded rod is movably sleeved with a first semicircular block. The outer surface of the first semicircular block is fixedly connected with a limiting telescopic rod, the end, away from the first semicircular block, of the limiting telescopic rod is fixedly connected to the outer surface of a second pipeline, and the outer surface of the second pipeline is fixedly connected with a second semicircular block. One end of the pressure gauge body is inserted into the first pipeline, the other end of the pressure gauge body is inserted into the second pipeline, then the threaded rod is rotated to enable the first semicircular block to move in the direction of the pressure pipeline under the limiting of the limiting telescopic rod, and the threaded rod can be fixed after moving, so that the threaded rod cannot fall off from the detection device.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure gauge air tightness detection technical field especially relates to a pressure gauge air tightness detection device. BACKGROUND

[0002] Pressure gauge is to refer to the elastic element as the sensitive element, measures and indicates the instrument above ambient pressure, application is extremely common, it almost spreads all the industrial flow and the scientific research field, because the measurement accuracy of pressure gauge is with its sealing as the premise.

[0003] The prior art patent number for: CN219455404U discloses a kind of precision pressure gauge air tightness detection device, belongs to pressure gauge detection technical field.A kind of precision pressure gauge air tightness detection device, including base, base is lifted and is connected with workbench, still include: slidingly connected in workbench movable block, movable block is fixedly connected with clamping block, clamping block is fixedly connected with friction pad;Fixedly connected with water tank on base, wherein, water tank is slidingly connected with fixed seat on it, fixed seat is fixedly connected with clamping block, clamping block is provided with clamping groove, and arc-shaped pad is arranged on the inner wall of clamping groove.

[0004] The above scheme can more directly observe the bubbles at the interface using the liquid in the water tank, and then judge the air-tight connection effect. On the other hand, the arc-shaped pad can also be used to tightly fit the interface, thereby improving the tightness of the connection position of the pressure gauge to be tested. When the pressure gauge is being tested, it is installed at one end of the pipeline. When testing, the liquid will be pressed out by the pressure, which will push the pressure gauge out. Because the pressure gauge is not fixed and limited when it is installed in the pipeline, it may fall off the pipeline. UTILITY MODEL CONTENTS

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a pressure gauge air tightness detection device, comprising: a bottom plate, the outer surface of the bottom plate is fixedly connected with a pipeline two at the top, the outer surface of the pipeline two is rotatably connected with a threaded rod through a bearing, the outer surface of the threaded rod movably sheaths a semicircle block one, the outer surface of the semicircle block one is fixedly connected with a limiting telescopic rod, one end of the limiting telescopic rod away from the semicircle block one is fixedly connected to the outer surface of the pipeline two, and the outer surface of the pipeline two is fixedly connected with a semicircle block two.

[0006] The technical effect of the above further scheme is that one end of the pressure gauge body is inserted into the inside of the pipeline one, the other end is inserted into the inside of the pipeline two, and then the threaded rod is rotated to move the semicircle block one in the direction of the pressure pipeline under the limitation of the limiting telescopic rod. After moving, the threaded rod can be fixed, so that the threaded rod will not fall off the detection device.

[0007] As a preferred implementation, the top of the outer surface of the bottom plate is fixedly connected with a pipeline I, the inside of the pipeline I is movably embedded with a pressure pipeline, and the end of the pressure pipeline away from the pipeline I is movably embedded in the inside of a pipeline II.

[0008] The technical effect of the above further scheme is that the water in the pipeline II enters the inside of the pressure pipeline for airtightness detection.

[0009] As a preferred implementation, the semicircular block I is located on the outer surface of the pressure pipeline for fixing the pressure pipeline, the top of the outer surface of the pressure pipeline is fixedly connected with a pressure gauge body, the outer surface of the pipeline II is fixedly embedded with a hollow cylinder II, and the end of the hollow cylinder II is fixedly connected with an air bag.

[0010] The technical effect of the above further scheme is that after the air bag is squeezed, the circular plug II does not contact the outer surface of the water outlet hole II at this time, the spring II stretches back, and under the action of gravity, the water in the water tank enters the inside of the air bag through the thick tube and the thin tube.

[0011] As a preferred implementation, the outer surface of the hollow cylinder II is provided with a water outlet hole I, the inner wall of the hollow cylinder II is fixedly connected with a spring II, one end of the spring II is fixedly connected with a circular plug II, the outer surface of the air bag close to the circular plug II is provided with a water outlet hole II, the outer surface of the air bag away from the hollow cylinder II is fixedly connected with a hollow cylinder I, and the outer surface of the hollow cylinder I is provided with a water inlet hole I.

[0012] The technical effect of the above further scheme is that after the air bag is squeezed, the circular plug I contacts the surface of the water inlet hole I under the action of air pressure, blocks the surface of the water inlet hole I, and the water in the air bag is squeezed into the inside of the pipeline II and then reaches the inside of the pressure pipeline for air tightness test. If bubbles appear in the pressure pipeline, it indicates that the airtightness of the inside of the pressure pipeline is poor.

[0013] As a preferred implementation, the outer surface of the air bag is provided with a water inlet hole II, the outer surface of the air bag close to the water inlet hole II is fixedly connected with a spring I, one end of the spring I is fixedly connected with a circular plug I, the outer surface of the hollow cylinder I is fixedly connected with a thin tube, the top end of the thin tube is fixedly connected with a thick tube, the inner wall of the thick tube is fixedly connected with a filter screen, and the top of the outer surface of the thick tube is fixedly connected with a water tank.

[0014] The technical effect of the above further scheme is that the staff relaxes the air bag, the circular plug II is blocked on the outer surface of the water outlet hole II under the limiting action of the spring II, and the circular plug I does not contact the water inlet hole I under the limiting action of the spring I, water enters the inside of the air bag from the water inlet hole I, and reciprocating operation is performed to test the airtightness of the pressure pipeline and the pressure gauge body multiple times. The filter screen is used for filtering water to reduce impurities in the water.

[0015] Compared with the prior art, the pressure gauge air tightness detection device has the advantages and positive effects that,

[0016] 1、The utility model discloses, in use, fill up the inside of water tank with water, one end of pressure gauge body is inserted to the inside of pipeline one, the other end is inserted to the inside of pipeline two, then rotates the threaded rod under the location of telescopic link and makes semicircle piece one move to the direction of pressure pipeline, can fix threaded rod after moving, make threaded rod not fall from detection device.

[0017] 2、The utility model discloses, in use, after extruding air bag, at this time round plug no. 2 does not contact with the outer surface of water outlet hole no. 2, spring no. 2 stretches out behind, and under the action of gravity, the water in the inside of water tank passes through thick pipe, thin pipe and enters the inside of air bag, after extruding air bag, under the action of air pressure, make round plug no. 1 contact with the surface of water inlet hole no. 1, block the surface of water inlet hole no. 1, the water in the inside of air bag is extruded to the inside of pipeline no. 2, then reaches the inside of pressure pipeline and carries out air tightness test, if pressure pipeline appears bubble, indicates that the airtightness in the inside of pressure pipeline is poor, staff relaxes air bag, make round plug no. 2 block in the outer surface of water outlet hole no. 2 under the location of spring no. 2, make round plug no. 1 not contact with water inlet hole no. 1 under the location of spring no. 1, and water enters the inside of air bag from water inlet hole no. 1, reciprocating operation, the airtightness of pressure pipeline and pressure gauge body carries out multiple test. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 A three-dimensional structure schematic diagram of the pressure gauge air tightness detection device is provided for the utility model;

[0019] Fig. 2 A thick pipe inside structure schematic diagram of the pressure gauge air tightness detection device is provided for the utility model;

[0020] Fig. 3 A hollow cylinder no. 1 inside structure schematic diagram of the pressure gauge air tightness detection device is provided for the utility model;

[0021] Fig. 4 A hollow cylinder no. 2 structure schematic diagram of the pressure gauge air tightness detection device is provided for the utility model.

[0022] Legend: 101, base plate; 102, pipe one; 103, pressure gauge body; 104, pressure pipe; 105, threaded rod; 106, limit telescopic rod; 107, semicircle block one; 108, semicircle block two; 109, pipe two; 110, air bag; 111, hollow cylinder one; 112, water inlet hole one; 113, round plug one; 114, spring one; 115, water inlet hole two; 116, hollow cylinder two; 117, water outlet hole one; 118, round plug two; 119, water outlet hole two; 120, spring two; 121, thin tube; 123, thick tube; 124, filter screen; 125, water tank. DETAILED DESCRIPTION

[0023] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are different from the description, and therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0025] Please refer to Figs. 1-4 The present application provides a pressure gauge air tightness detection device, comprising: a base plate 101, the outer surface of the base plate 101 is fixedly connected with a pipe two 109 at the top, the outer surface of the pipe two 109 is rotatably connected with a threaded rod 105 through a bearing, the outer surface of the threaded rod 105 movably sheaths a semicircle block one 107, the outer surface of the semicircle block one 107 is fixedly connected with a limit telescopic rod 106, one end of the limit telescopic rod 106 away from the semicircle block one 107 is fixedly connected to the outer surface of the pipe two 109, the outer surface of the pipe two 109 is fixedly connected with a semicircle block two 108, one end of the pressure gauge body 103 is inserted into the inside of the pipe one 102, the other end is inserted into the inside of the pipe two 109, then the threaded rod 105 is rotated to move the semicircle block one 107 to the direction of the pressure pipe 104 under the limitation of the limit telescopic rod 106, after moving, the threaded rod 105 can be fixed, so that the threaded rod 105 will not fall off from the detection device.

[0026] As Figs. 1-4 shown, the outer surface of the base plate 101 is fixedly connected with a pipe one 102 at the top, the inside of the pipe one 102 movably sheaths a pressure pipe 104, one end of the pressure pipe 104 away from the pipe one 102 movably sheaths in the inside of the pipe two 109, the water in the pipe two 109 enters the inside of the pressure pipe 104 to detect the air tightness.

[0027] As Figs. 1-4As shown, the semicircle block 107 is located on the outer surface of the pressure pipeline 104 for fixing the pressure pipeline 104, the top of the outer surface of the pressure pipeline 104 is fixedly connected with the pressure gauge body 103, the outer surface of the pipeline two 109 is fixedly embedded with the hollow cylinder two 116, one end of the hollow cylinder two 116 is fixedly connected with the air bag 110, after extrusion, the air bag 110, at this time, the round plug two 118 does not contact with the outer surface of the water outlet hole two 119, the spring two 120 is retracted, and at the same time, under the action of gravity, the water in the water tank 125 enters the inside of the air bag 110 through the thick tube 123 and the thin tube 121.

[0028] As shown in the figure, Figs. 1-4 The outer surface of the hollow cylinder two 116 is provided with a water outlet hole one 117, the inner wall of the hollow cylinder two 116 is fixedly connected with the spring two 120, one end of the spring two 120 is fixedly connected with the round plug two 118, the outer surface of the air bag 110 close to the round plug two 118 is provided with a water outlet hole two 119, the outer surface of the air bag 110 away from the hollow cylinder two 116 is fixedly connected with the hollow cylinder one 111, the outer surface of the hollow cylinder one 111 is provided with a water inlet hole one 112, after extruding the air bag 110, under the action of air pressure, the round plug one 113 contacts with the surface of the water inlet hole one 112, and blocks the surface of the water inlet hole one 112, the water in the air bag 110 is extruded into the inside of the pipeline two 109, and then reaches the inside of the pressure pipeline 104 to perform the air tightness test, if bubbles appear in the pressure pipeline 104, it indicates that the air tightness of the pressure pipeline 104 is poor.

[0029] As shown in the figure, Figs. 1-4 The outer surface of the air bag 110 is provided with a water inlet hole two 115, the outer surface of the air bag 110 close to the water inlet hole two 115 is fixedly connected with the spring one 114, one end of the spring one 114 is fixedly connected with the round plug one 113, the outer surface of the hollow cylinder one 111 is fixedly connected with the thin tube 121, the top end of the thin tube 121 is fixedly connected with the thick tube 123, the inner wall of the thick tube 123 is fixedly connected with the filter screen 124, the outer surface of the thick tube 123 is fixedly connected with the water tank 125, the staff relaxes the air bag 110, under the limiting action of the spring two 120, the round plug two 118 is blocked on the outer surface of the water outlet hole two 119, and under the limiting action of the spring one 114, the round plug one 113 does not contact with the water inlet hole one 112, the water enters the inside of the air bag 110 from the water inlet hole one 112, and reciprocating operation is performed, the air tightness of the pressure pipeline 104 and the pressure gauge body 103 is tested for multiple times, and the filter screen 124 is used for filtering the water, reducing the impurities in the water.

[0030] Working principle: fill the inside of the water tank 125 with water, insert one end of the pressure gauge body 103 into the inside of the pipeline one 102, and the other end into the inside of the pipeline two 109, then rotate the threaded rod 105 under the limiting of the limiting telescopic rod 106 to make the semicircle block one 107 move to the direction of the pressure pipeline 104, after moving, the threaded rod 105 can be fixed, so that the threaded rod 105 will not fall off from the detection device, after extruding the air bag 110, at this time the round plug two 118 does not contact with the outer surface of the water outlet hole two 119, the spring two 120 stretches back, and at the same time under the action of gravity, the water in the inside of the water tank 125 enters into the inside of the air bag 110 through the thick tube 123 and the thin tube 121, after extruding the air bag 110, under the action of air pressure, the round plug one 113 contacts with the surface of the water inlet hole one 112, blocks the surface of the water inlet hole one 112, the water in the inside of the air bag 110 is extruded into the inside of the pipeline two 109, and then reaches the inside of the pressure pipeline 104 to carry out the air tightness test, if the pressure pipeline 104 appears bubbles, it indicates that the airtightness of the inside of the pressure pipeline 104 is poor, the staff relaxes the air bag 110, under the limiting action of the spring two 120, the round plug two 118 blocks the outer surface of the water outlet hole two 119, and at the same time under the limiting action of the spring one 114, the round plug one 113 does not contact with the water inlet hole one 112, the water enters into the inside of the air bag 110 from the water inlet hole one 112, reciprocating operation, the airtightness of the pressure pipeline 104 and the pressure gauge body 103 is tested for many times.

[0031] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied in other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments shall fall within the protection scope of the present application.

Claims

1. A pressure gauge air tightness testing device, characterized by, Include: The outer surface of the bottom plate (101) is fixedly connected with the pipeline two (109), the outer surface of the pipeline two (109) is rotatably connected with the threaded rod (105) through the bearing, the outer surface of the threaded rod (105) is movably sleeved with the semicircle block one (107), the outer surface of the semicircle block one (107) is fixedly connected with the limiting telescopic rod (106), one end of the limiting telescopic rod (106) away from the semicircle block one (107) is fixedly connected with the outer surface of the pipeline two (109), and the outer surface of the pipeline two (109) is fixedly connected with the semicircle block two (108).

2. The pressure gauge airtightness detection device according to claim 1, characterized in that: The outer surface of the bottom plate (101) is fixedly connected with the pipeline one (102), the inside of the pipeline one (102) is movably embedded with the pressure pipeline (104), one end of the pressure pipeline (104) away from the pipeline one (102) is movably embedded in the inside of the pipeline two (109), the semicircle block one (107) is located on the outer surface of the pressure pipeline (104) for fixing the pressure pipeline (104), the top of the outer surface of the pressure pipeline (104) is fixedly connected with the pressure gauge body (103), and the outer surface of the pipeline two (109) is fixedly embedded with the hollow cylinder two (116). The outer surface of the hollow cylinder two (116) is fixedly connected with the air bag (110).

3. The pressure gauge air tightness detection device according to claim 2, characterized in that: The outer surface of the hollow cylinder two (116) is provided with a water outlet hole one (117), the inner wall of the hollow cylinder two (116) is fixedly connected with the spring two (120), and one end of the spring two (120) is fixedly connected with the round plug two (118).

4. The pressure gauge air tightness detection device according to claim 3, characterized in that: The outer surface of the air bag (110) is provided with a water outlet hole two (119) close to the round plug two (118), the outer surface of the air bag (110) is fixedly connected with the hollow cylinder one (111) away from the hollow cylinder two (116), and the outer surface of the hollow cylinder one (111) is provided with a water inlet hole one (112).

5. The pressure gauge air tightness detection device according to claim 4, characterized in that: The outer surface of the air bag (110) is provided with a water inlet hole two (115), the outer surface of the air bag (110) is fixedly connected with the spring one (114) close to the water inlet hole two (115), and one end of the spring one (114) is fixedly connected with the round plug one (113).

6. The pressure gauge air tightness detection device according to claim 5, characterized in that: The outer surface of the hollow cylinder one (111) is fixedly connected with the thin tube (121), the top end of the thin tube (121) is fixedly connected with the thick tube (123), the inner wall of the thick tube (123) is fixedly connected with the filter screen (124), and the outer surface of the thick tube (123) is fixedly connected with the water tank (125).

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