Sealing performance detection device for connecting pipe production

Abstract

The invention relates to the technical field of connecting pipe detection, in particular to a sealing performance detection device for connecting pipe production, which comprises a water tank and a support frame, a fixing part a and a fixing part b are arranged on the support frame, sealing plates are fixedly mounted on the fixing part a and the fixing part b, sealing assemblies are arranged on the sealing plates, an air pump is arranged on one side of the fixing part a, and an air outlet is arranged on the other side of the fixing part b. A measuring tank is arranged on one side of the fixing part b, the two ends of the connecting pipe are sealed and placed in water, whether bubbles are generated or not is observed by injecting gas into the inner wall of the pipe fitting, the contact force between the sealing parts located at the two ends of the pipe fitting and the ends of the pipe fitting is gradually increased along with injection of the gas, and the sealing performance is improved; in the process, one end of the pipe fitting is communicated with a measuring tank, the volume of gas in the measuring tank is judged by observing the rising height of a sliding block in the measuring tank, and the volume of the injected gas is compared and recorded to judge the relationship between the volume of the injected gas and the volume of the injected gas, so that the detection result of the sealing performance of the pipe fitting is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of connecting pipe detection, and in particular to a sealing detection device for connecting pipe production. Background Art

[0002] The sealing test of the connecting pipe is a key link to ensure product quality and performance. Good sealing performance can prevent liquid or gas leakage during transportation. The testing of the connecting pipe is to observe whether bubbles appear after it is injected with gas in water. If there are large cracks in the connecting pipe, the bubbles it produces will be large and obvious, but if it is a small crack, the bubbles it produces are not easy to observe, which will lead to inaccurate test results. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sealing detection device for connecting pipe production, which can effectively solve the problem of inaccurate detection results of the prior art method of observing the sealing of the connecting pipe by observing bubbles.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a sealing detection device for connecting pipe production, comprising a water tank and a support frame, wherein a fixing member a and a fixing member b are arranged on the support frame, a sealing plate is fixedly mounted on the fixing member a and the fixing member b, a sealing assembly is arranged on the sealing plate, an air pump is arranged on one side of the fixing member a, and a measuring tank is arranged on one side of the fixing member b; The sealing assembly includes a guide tube b slidably inserted on the sealing plate, the guide tube b is provided with an exhaust groove, one end of the guide tube b is fixedly connected to a sealing block, a cavity is provided in the sealing plate, the other end of the guide tube b is fixedly connected to a push plate, and the push plate is arranged in the cavity, two groups of springs are symmetrically fixedly installed on the push plate, and the springs are fixedly connected to the inner wall of the sealing plate; The fixing member a and the fixing member b are both provided with clamping members, both ends of the clamping members are fixedly connected to the limiting blocks, a sleeve rod is slidably sleeved on the limiting blocks, one side of the sleeve rod is fixedly connected to an L-shaped tube, two groups of sliding grooves are symmetrically opened on one side of the sealing plate, the end of the L-shaped tube is slidably inserted in the sliding groove, a guide tube a is provided in the sealing plate, one end of the guide tube a is communicated with the cavity, and the end of the L-shaped tube is slidably inserted in the other end of the guide tube a.

[0005] Furthermore, two groups of threaded rods are symmetrically threadedly inserted on the fixing member a and the fixing member b, and the ends of the threaded rods are rotatably connected to the sleeve rods.

[0006] Furthermore, the air pump is fixedly connected to the water tank, an air supply pipe is fixedly connected to one side of the air pump, a start button is fixedly installed on the air pump, and a push block is fixedly connected to one side of the support frame.

[0007] Furthermore, the measuring tank is fixedly mounted on the support frame, the measuring tank is made of a transparent material, and scale lines are arranged on the surface.

[0008] Furthermore, a slider is slidably installed in the measuring tank, a bellows is fixedly connected to the bottom of the measuring tank, a fixing sleeve is fixedly installed at the end of the bellows, and the fixing sleeve is fixedly connected to the fixing member b.

[0009] Furthermore, a screw rod is rotatably inserted on the support frame, and the fixing member b is slidably sleeved on the screw rod.

[0010] Furthermore, an electric push rod is arranged on the support frame.

[0011] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: The two ends of the connecting pipe are sealed and placed in water. During the sealing test, gas is injected into the inner wall of the pipe to observe whether bubbles are generated. As the gas is injected, the contact force between the seals at both ends of the pipe and the ends of the pipe gradually increases, thereby improving the sealing performance. In this process, one end of the pipe is connected to a measuring tank, and the rising height of the slider in the measuring tank is observed to determine the volume of the gas in the measuring tank. The volume of the injected gas and the expansion volume of the corresponding expansion piece are compared and recorded to determine the size relationship between the two, thereby obtaining the test result of the sealing performance of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the main part of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the sleeve rod of the present invention; Figure 4 is a schematic diagram of the cross-sectional structure of the sealing plate of the present invention; Figure 5 A schematic diagram of the cross-sectional structure of a sealing plate connected to a fixing member a of the present invention; Figure 6 This is a side view of the sealing assembly when air is injected into the sealing plate connected to the fixing member b of the present invention.

[0014] Reference numerals: 1. Water tank; 2. Support frame; 201. Electric push rod; 202. Screw rod; 203. Push block; 3. Fixing part a; 301. Fixing part b; 3011. Sealing plate; 302. Clamping part; 3021. Limiting block; 303. Threaded rod; 3031. Sleeve rod; 3032. L-shaped pipe; 304. Sliding groove; 305. Guide pipe a; 306. Sealing block; 3061. Guide pipe b; 3062. Exhaust groove; 3063. Push plate; 3064. Spring; 4. Air pump; 401. Air supply pipe; 402. Start button; 5. Measuring tank; 501. Sliding block; 502. Fixing sleeve; 503. Bellows; 6. Connecting pipe. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] The present invention will be further described below in conjunction with the embodiments. Example

[0017] Refer to the attached Figure 1 —Attachment Figure 6As shown, a sealing detection device for connecting pipe production includes a water tank 1 and a support frame 2. An electric push rod 201 is arranged on the support frame 2. The electric push rod 201 controls the overall lifting of all components on the support frame 2. A screw rod 202 is rotatably inserted on the support frame 2. The screw rod 202 controls the horizontal movement of a fixing member b301. A motor for driving the screw rod 202 to rotate is arranged on one side of the support frame 2. The fixing member b301 is slidably sleeved on the screw rod 202. The fixing member b301 can be controlled to slide by the screw rod 202 to adjust the distance between the fixing member a3 and the fixing member b301 to adapt to different lengths. The connecting pipe 6 and the support frame 2 are provided with a fixing member a3 and a fixing member b301, and sealing plates 3011 are fixedly installed on the fixing member a3 and the fixing member b301. In the process of testing the sealing performance of the connecting pipe 6, the two groups of sealing plates 3011 are always tightly attached to the two ends of the connecting pipe 6 to prevent water from entering the connecting pipe 6. A sealing assembly is provided on the sealing plate 3011, and the two groups of sealing assemblies are guided in the same direction. It should be noted that after the two groups of sealing plates 3011 respectively seal the two ends of the connecting pipe 6, before launching into the water, the connecting pipe 6 needs to be vacuumed from one end of the fixing sleeve 502 connected to the fixing member b301.

[0018] Regarding the injection of air into the connecting pipe 6 in the experiment, an air pump 4 is provided on one side of the fixing member a3, the air pump 4 is fixedly connected to the water tank 1, an air supply pipe 401 is fixedly connected to one side of the air pump 4, the air pump 4 supplies air to the connecting pipe 6 through the air supply pipe 401, a start button 402 is fixedly installed on the air pump 4, a push block 203 is fixedly connected to one side of the support frame 2, when the support frame 2 descends to the lowest point of its descending range, the push block 203 will press down to the start button 402, the start button 402 starts the air pump 4, and the air pump 4 supplies air to the connecting pipe 6 through the air supply pipe 401.

[0019] Regarding the detection of sealing in the experiment, a measuring tank 5 is provided on one side of the fixing member b301. The measuring tank 5 is fixedly mounted on the support frame 2. The measuring tank 5 is used to collect the gas injected from the connecting pipe 6. The measuring tank 5 is made of a transparent material and has scale lines on the surface to facilitate the observation of the rising height of the slider 501. The slider 501 is slidably installed in the measuring tank 5. The rising height of the slider 501 is observed. By measuring whether the amount of gas collected in the measuring tank 5 is the same as the amount of gas injected by the air pump 4, it is determined whether the connecting pipe 6 is leaking. The bottom of the gas measuring tank 5 is fixedly connected with a bellows 503. The retractability of the bellows 503 can ensure that it can still be connected to the measuring tank 5 after the fixing piece b301 moves. A fixing sleeve 502 is fixedly installed on the end of the bellows 503, and the fixing sleeve 502 is fixedly connected to the fixing piece b301. The sealing block 306 on the fixing piece b301 is located on the side close to the measuring tank 5. The fixing sleeve 502 can ensure that the gas flows completely from the fixing sleeve 502 to the bellows 503 and enters the measuring tank 5 without leakage and water ingress.

[0020] Regarding the method of detecting the sealing performance, the connecting tube 6 is placed between the fixing member a3 and the fixing member b301, and the fixing member b301 is moved by the screw rod 202, so that the two sets of sealing plates 3011 are against the two ends of the connecting tube 6 to seal it. After the connecting tube 6 is evacuated into a vacuum, the electric push rod 201 is allowed to push the support frame 2 down, and the connecting tube 6 is immersed in the water tank 1 filled with water. When the support frame 2 descends to the lowest point of its descending range, the push block 203 will be pressed down to the start button 402, and the start button 402 starts the air pump 4. The air pump 4 supplies air to the connecting tube 6 through the air supply pipe 401. The gas pushes the sealing component to open and enters the measuring tank 5 through the connecting tube 6, so as to judge the sealing performance of the connecting tube 6 by observing whether obvious bubbles appear in the water or whether the rising height of the slider 501 is the same as the volume injected per unit time.

[0021] Specifically, the sealing assembly includes a guide tube b3061 slidably inserted on the sealing plate 3011, one end of the guide tube b3061 is fixedly connected to a sealing block 306, and the sealing block 306 is used to block the vent hole on the sealing plate 3011. The guide tube b3061 is provided with an exhaust groove 3062, and the gas will enter the exhaust groove 3062 and push the sealing block 306 away from the sealing plate 3011. When the guide tube b3061 slides toward the sealing block 306, the gas enters the connecting pipe 6 through the exhaust groove 3062, and the sealing plate 3011 is opened. A cavity is opened in 11, and the cavity helps the push plate 3063 to slide. The other end of the guide tube b3061 is fixedly connected with the push plate 3063, and the push plate 3063 is arranged in the cavity. The push plate 3063 limits the guide tube b3061 to prevent the guide tube b3061 from sliding out of the sealing plate 3011. Two groups of springs 3064 are symmetrically fixedly installed on the push plate 3063, and the springs 3064 are fixedly connected to the inner wall of the sealing plate 3011. The springs 3064 push the push plate 3063 to reset, so that the sealing block 306 re-blocks the ventilation hole.

[0022] Furthermore, both the fixing member a3 and the fixing member b301 are provided with a clamping member 302, which clamps the connecting pipe 6. Both ends of the clamping member 302 are fixedly connected to the limiting blocks 3021, which limit the sleeve rod 3031, and the gas will push the clamping member 302 through the limiting blocks 3021 to further clamp the connecting pipe 6. The sleeve rod 3031 is slidably sleeved on the limiting block 3021. Both the fixing member a3 and the fixing member b301 are symmetrically threaded with two groups of threaded rods 303, and the ends of the threaded rods 303 are rotatably connected to the sleeve rod 3031. The threaded rods 303 control the initial clamping state of the clamping member 302.

[0023] Furthermore, an L-shaped tube 3032 is fixedly connected to one side of the sleeve rod 3031. The L-shaped tube 3032 is used to limit the depth of the limit block 3021 inserted into the sleeve rod 3031, so as to prevent the limit block 3021 from blocking the connection between the L-shaped tube 3032 and the sleeve rod 3031, resulting in the inability of gas to enter the sleeve rod 3031. Two groups of sliding grooves 304 are symmetrically provided on one side of the sealing plate 3011 to facilitate the sliding of the L-shaped tube 3032. The end of the L-shaped tube 3032 is slidably inserted in the sliding groove 304. A guide tube a305 is provided in the sealing plate 3011. One end of the guide tube a305 is communicated with the cavity, and the end of the L-shaped tube 3032 is slidably inserted in the other end of the guide tube a305. The guide tube a305 guides the gas in the cavity into the sleeve rod 3031 through the L-shaped tube 3032.

[0024] When the air pump 4 injects air into the connecting tube 6, the gas will enter the exhaust groove 3062 and push the sealing block 306 away from the sealing plate 3011. When the guide tube b3061 slides toward the sealing block 306, the gas enters the connecting tube 6 through the exhaust groove 3062. At the same time, part of the gas in the cavity of the connecting tube 6 will be introduced into the sleeve rod 3031 along the guide tube a305 through the L-shaped tube 3032. When the connecting tube 6 is deformed due to excessive air injection and its diameters at both ends become smaller, the gas will push the clamping member 302 through the limit block 3021 to further reduce the clamping diameter, thereby always maintaining the clamping force on the connecting tube 6.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing detection device for connecting pipe production, comprising a water tank (1) and a support frame (2), characterized in that: The support frame (2) is provided with a fixing member a (3) and a fixing member b (301), the fixing member a (3) and the fixing member b (301) are both fixedly mounted with a sealing plate (3011), the sealing plate (3011) is provided with a sealing assembly, an air pump (4) is provided on one side of the fixing member a (3), and a measuring tank (5) is provided on one side of the fixing member b (301); The sealing assembly comprises a guide tube b (3061) slidably inserted on a sealing plate (3011), the guide tube b (3061) being provided with an exhaust groove (3062), one end of the guide tube b (3061) being fixedly connected to a sealing block (306), a cavity being provided in the sealing plate (3011), the other end of the guide tube b (3061) being fixedly connected to a push plate (3063), and the push plate (3063) being arranged in the cavity, two groups of springs (3064) being symmetrically fixedly mounted on the push plate (3063), and the springs (3064) being fixedly connected to the inner wall of the sealing plate (3011); The fixing member a (3) and the fixing member b (301) are both provided with a clamping member (302), both ends of the clamping member (302) are fixedly connected to a limit block (3021), a sleeve rod (3031) is slidably sleeved on the limit block (3021), one side of the sleeve rod (3031) is fixedly connected to an L-shaped tube (3032), one side of the sealing plate (3011) is symmetrically provided with two groups of sliding grooves (304), the end of the L-shaped tube (3032) is slidably inserted into the sliding groove (304), and a flow guide tube a (305) is provided in the sealing plate (3011), one end of the flow guide tube a (305) is communicated with the cavity, and the end of the L-shaped tube (3032) is slidably inserted into the other end of the flow guide tube a (305).

2. A sealing detection device for connecting pipe production according to claim 1, characterized in that: The fixing member a (3) and the fixing member b (301) are both symmetrically threadedly inserted with two groups of threaded rods (303), and the ends of the threaded rods (303) are rotatably connected to the sleeve rods (3031).

3. A sealing detection device for connecting pipe production according to claim 1, characterized in that: The air pump (4) is fixedly connected to the water tank (1); an air supply pipe (401) is fixedly connected to one side of the air pump (4); a start key (402) is fixedly mounted on the air pump (4); and a push block (203) is fixedly connected to one side of the support frame (2).

4. A sealing detection device for connecting pipe production according to claim 1, characterized in that: The measuring tank (5) is fixedly mounted on the support frame (2); the measuring tank (5) is made of a transparent material and has scale lines on its surface.

5. A sealing detection device for connecting pipe production according to claim 1, characterized in that: A slider (501) is slidably mounted in the measuring tank (5), a bellows (503) is fixedly connected to the bottom of the measuring tank (5), a fixing sleeve (502) is fixedly mounted on the end of the bellows (503), and the fixing sleeve (502) is fixedly connected to the fixing member b (301).

6. A sealing detection device for connecting pipe production according to claim 1, characterized in that: A screw rod (202) is rotatably inserted into the support frame (2), and the fixing member b (301) is slidably sleeved on the screw rod (202).

7. A sealing detection device for connecting pipe production according to claim 1, characterized in that: An electric push rod (201) is provided on the support frame (2).

Images