Tool for detecting air tightness of water pipe

Abstract

The utility model discloses a water pipe air tightness detection tool, which comprises an air guide block and a connecting clamp, and is characterized in that the air guide block comprises an air pipe joint arranged on one end face of the air guide block and used for introducing detection air; the first mounting groove is formed in the other end surface of the air guide block and is communicated with the water inlet pipe; the flow channel is formed in the air guide block and is used for communicating the air pipe joint with the first mounting groove; the connecting clamp comprises a bottom plate and a top plate, a first opening is formed in the bottom plate and used for containing the water inlet pipe, and the bottom plate is fixedly connected with the top plate through a side plate. The air guide block and the water inlet pipe are clamped between the bottom plate and the top plate; the lower end face of the top plate abuts against the upper end face of the air guide block, and the upper end face of the bottom plate abuts against the lower end face of the water inlet pipe drum. According to the scheme, the problem that an operator installs detection equipment during water pipe air tightness detection in the prior art is solved, operation is simpler, more convenient, more time-saving and labor-saving, the labor intensity of the operator is relieved, the surface of a core body is prevented from being collided, the effect of improving installation efficiency and product quality is achieved, and the purpose of improving economic benefits is achieved.

Description

Technical Field

[0001] The utility model application belongs to the technical field of water pipe air tightness detection, and specifically relates to a water pipe air tightness detection tool. Background Art

[0002] During the production process of automobile oil coolers, operators need to test the sealing of the water inlet and outlet pipes of the oil coolers. Specifically, a certain pressure of gas (such as helium, air, etc.) is introduced into the water inlet pipe, and then the leakage of gas during the ventilation process is calculated to test the sealing of the water pipe. Fig.11 As shown, the water pipe to be tested is usually installed in the testing fixture, and then the operator tightens the bolts so that the bottom of the bolts firmly presses against the fixing block to fix the water pipe.

[0003] However, the prior art has the following problems: in order to ensure that the water pipe is firmly installed in the tooling and prevent it from popping out of the tooling when the test gas is introduced, the operator must completely tighten the bolts. Therefore, each operation process of testing the sealing of a water pipe is very time-consuming and laborious. At the same time, during the testing process, the product is easily bumped when it is taken in and placed in the tooling.

[0004] Therefore, it is urgent to design a new testing tool to overcome the problems existing in the prior art - on the basis of ensuring that the testing tool is firmly connected to the water pipe to be tested, it can simplify the installation steps, reduce the labor intensity of the operator during the installation process, and avoid bumps on the core surface, thereby achieving the technical effect of improving installation efficiency and product quality, and ultimately achieving the goal of improving economic benefits. Utility Model Content

[0005] The utility model application discloses a water pipe air tightness detection tool to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a water pipe air tightness detection tool, including an air guide block and a connecting fixture, the air guide block including: an air pipe joint, which is arranged on one end face of the air guide block and is used to connect with an inflation device to pass the detection gas; a first installation groove, which is formed on the other end face of the air guide block and is used to connect with the water inlet pipe for installation; a flow channel, which is formed inside the air guide block, and the flow channel connects the air pipe joint with the first installation groove; the connecting fixture includes: a bottom plate and a top plate, a first opening is formed on the bottom plate, the first opening is used to accommodate the water inlet pipe, and the bottom plate is fixedly connected to the top plate through the side plate; the bottom plate and the top plate are used to place and clamp the air guide block and the water inlet pipe; the lower end face of the top plate abuts against the upper end face of the air guide block, and the upper end face of the bottom plate abuts against the lower end face of the tube drum of the water inlet pipe.

[0007] Furthermore, an air intake core is installed in the first installation groove, and the water inlet pipe is connected to the air guide block through the air intake core.

[0008] Furthermore, the air intake core is a cylindrical structure with an inner cavity, including: a first socket formed at one end of the air intake core for inserting a water inlet pipe; a connecting hole formed at the other end of the air intake core and connected to the flow channel.

[0009] Furthermore, the inner cavity of the air intake core is formed with a first placement groove for accommodating the sealing ring.

[0010] Furthermore, a second opening is formed on the bottom plate, and the second opening is used to accommodate the water outlet pipe, and the upper end of the bottom plate abuts against the lower end surface of the water outlet pipe drum.

[0011] Furthermore, the air guide block also includes: a second installation groove, which is made on the same end surface as the first installation groove and is used to connect the water outlet pipe; an exhaust core is installed in the second installation groove, and the second installation groove is sealed and connected to the water outlet pipe through the exhaust core.

[0012] Furthermore, the exhaust core is a cylindrical structure with an inner cavity, and further comprises: a second socket formed at one end of the exhaust core for inserting a water outlet pipe.

[0013] Furthermore, a second placement groove for accommodating the sealing ring is formed in the inner cavity of the air intake core.

[0014] Furthermore, the air intake core and the air guide block, as well as the exhaust core and the air guide block are installed via threads.

[0015] Furthermore, the gas guide block and the connecting fixture are both made of brass.

[0016] The advantages and positive effects of the utility model are:

[0017] 1. The water pipe air tightness detection tool disclosed in the utility model application has a spacing between the top plate and the bottom plate of the connecting fixture that just accommodates the water inlet pipe and the air guide block, that is, the lower end surface of the top plate abuts against the upper end surface of the air guide block, and the upper end surface of the bottom plate abuts against the lower end surface of the tube drum of the water inlet pipe. The top plate and the bottom plate firmly clamp the air guide block and the water pipe, and the entire clamping process only requires the connecting fixture, and this design saves costs.

[0018] In general, this testing tooling overcomes the problem of operators installing testing equipment during air tightness testing in the prior art while ensuring a firm connection with the water pipe to be tested. Compared with the prior art, this tooling simplifies the installation process during the testing process, making the operation easier and more time-saving and labor-saving, reducing the labor intensity of operators during the installation process, and avoiding bumps on the core surface, thereby achieving the technical effect of improving installation efficiency and product quality, and ultimately achieving the purpose of improving economic benefits.

[0019] 2. The utility model applies for a detection tooling, and the water inlet pipe is connected to the air guide block through the air inlet core, so that the air guide block has better sealing performance during the process of guiding air to the water inlet pipe.

[0020] 3. The utility model applies for a detection tool, and the inner cavity of the air intake core is provided with a first placement groove for accommodating a sealing ring. Placing a sealing ring in the inner cavity of the air intake core further enhances the sealing effect, makes the detection effect more accurate, and controls the quality of the product more precisely.

[0021] 4. The utility model applies for a detection tooling, and the second mounting groove is sealed and connected with the water outlet pipe through the exhaust core. The detection gas enters the oil cooler from the water inlet pipe, and the gas passes through the oil cooler and is discharged from the water outlet pipe and enters the exhaust core of the special sealing component, so that the sealing effect is better.

[0022] 5. The utility model applies for a detection tooling, and a second placement groove for accommodating a sealing ring is formed in the inner cavity of the air intake core. The effect is similar to that of setting the first placement groove in the inner cavity of the air intake core, which can make the sealing effect better, the detection effect more accurate, and the quality control of the product more precise.

[0023] 6. The utility model applies for a detection tooling, and the air intake core and the air guide block, as well as the exhaust core and the air guide block are installed by threads. This connection method is firm and detachable, and the use method is more flexible.

[0024] 7. The test fixture, gas block and connection fixture of this utility model are all made of brass. Brass has high strength, high hardness, strong chemical corrosion resistance, and can withstand a certain gas pressure. It is durable and is a very suitable material.

[0025] 8. The technical solution disclosed in the utility model application has the advantages of simple structure, cost saving, detachability, firm connection, strong sealing, easy operation, easy production, safety, stability, and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a water pipe air tightness detection tool provided by the utility model;

[0027] Figure 2 yes Figure 1 Section view in the AA direction;

[0028] Figure 3 It is a cross-sectional view of the air guide block in this testing tooling;

[0029] Figure 4 This is a cross-sectional view of the air intake core in this testing tool;

[0030] Figure 5 It is a three-dimensional diagram of the connecting fixture in the utility model;

[0031] Figure 6 This is a cross-sectional view of the exhaust core in this testing tool;

[0032] Figure 7 It is a schematic diagram of the structure of the water inlet pipe;

[0033] Figure 8 This is a schematic diagram of the connection structure of the testing tool, water inlet pipe, oil cooler, and water outlet pipe;

[0034] Fig. 9 It is a cross-sectional view of the connection structure between the inspection tooling and the water inlet pipe and the oil cooler;

[0035] Fig.10 yes Fig. 9 A magnified view of part I in FIG.

[0036] Fig.11 A schematic diagram of the structure of a detection tool in the prior art.

[0037] Description of Reference Numerals

[0038] 1. Connecting fixture; 101. Bottom plate; 101a. First opening; 101b. Second opening; 102. Top plate; 103. Side plate; 2. Air guide block; 201. Flow channel; 202. Air pipe joint; 203. First mounting groove; 204. Second mounting groove; 3. Exhaust core; 301. Second socket; 302. Second placement groove; 4. Sealing ring; 5. Water outlet pipe; 6. Water inlet pipe; 601. Tube drum; 7. Inlet core; 701. First socket; 702. First placement groove; 703. Connecting hole; 8. Oil cooler. DETAILED DESCRIPTION

[0039] The specific implementation of the utility model application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0040] In the technical solution disclosed in the utility model application, unless otherwise stated, the directional words used, such as "upper, lower, left, right", are generally defined based on the drawing direction of the corresponding drawings, and "inside and outside" refer to the inside and outside relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first, second", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0041] According to the utility model application, a water pipe air tightness detection tool is disclosed, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 , Fig. 9 , Fig.10 As shown, it includes: an air guide block 2 and a connecting fixture 1, specifically,

[0042] Combination Figure 3 , Fig. 9 As shown, the air guide block 2 includes:

[0043] The air pipe joint 202 is provided on one end surface of the air guide block 2 and is used to connect with the inflation device to pass the detection gas;

[0044] The first installation groove 203 is formed on the other end surface of the air guide block 2 and is used for connecting and installing with the water inlet pipe 6;

[0045] The flow channel 201 is formed inside the air guide block 2, and the flow channel 201 connects the air pipe joint 202 with the first installation groove 203;

[0046] Combination Figure 5 As shown, the connection fixture 1 includes: a bottom plate 101 and a top plate 102, the bottom plate 101 is formed with a first opening 101a, the first opening 101a is used to accommodate the water inlet pipe 6, the bottom plate 101 is fixedly connected to the top plate 102 through the side plate 103; Fig. 9 , Fig.10 As shown, the bottom plate 101 and the top plate 102 are used to place and clamp the air guide block 2 and the water inlet pipe 6; the lower end surface of the top plate 102 abuts against the upper end surface of the air guide block 2, and the upper end surface of the bottom plate 101 abuts against the lower end surface of the tube drum 601 of the water inlet pipe 6.

[0047] In the above technical solution, the water inlet pipe 6 is inserted into the air guide block 2, and then the two are placed in the connecting fixture 1. In the design of the connecting fixture 1, the distance between the top plate 102 and the bottom plate 101 is just enough to accommodate the installed water inlet pipe 6 and the air guide block 2, that is, the lower end surface of the top plate 102 abuts against the upper end surface of the air guide block 2, and the upper end surface of the bottom plate 101 abuts against the lower end surface of the tube drum 601 of the water inlet pipe 6, and the top plate 102 and the bottom plate 101 firmly clamp the air guide block 2 and the water inlet pipe 6. Compared with the prior art, Fig.11 As shown, it is only necessary to use the connection fixture 1 to clamp the air guide block 2 and the water inlet pipe 6, and no other workpieces are needed. Moreover, the operator no longer needs to spend time and effort to tighten the bolts to ensure that the bolts are firmly against the fixing block to fix the water pipe, so as to prevent it from popping out of the tooling when the gas is introduced, causing an accident. Compared with the prior art, this design has a simpler structure, is easier to operate, saves time and effort, and avoids bumping the surface of the product core during the inspection process.

[0048] In general, this technical solution not only ensures that the detection tooling is firmly connected to the water pipe to be tested, but also overcomes the problems existing in the prior art, so that in the process of water pipe air tightness detection, the installation steps are simplified compared with the prior art, the labor intensity of the operators during the installation process is reduced, and bumps on the core surface are avoided, thereby achieving the technical effect of improving installation efficiency and product quality, and ultimately achieving the purpose of improving economic benefits.

[0049] In this embodiment, if Figure 2 , Fig. 9 As shown, an air intake core 7 is installed in the first installation groove 203, and the water inlet pipe 6 is connected to the air guide block 2 through the air intake core 7, so that the air guide block 2 has better sealing performance when guiding air to the water inlet pipe 6. Figure 4 As shown, the air intake core 7 is a cylindrical structure with an inner cavity, including: a first socket 701, formed at one end of the air intake core 7, for inserting the water inlet pipe 6; a connecting hole 703, formed at the other end of the air intake core 7, connected to the flow channel 201. The detection gas is introduced into the air guide block 2 from the air pipe joint 202, and the detection gas is introduced into the first installation groove 203 through the flow channel 201, and then introduced into the water inlet pipe 6 through the air intake core 7 in the first installation groove 203.

[0050] In some specific embodiments, such as Figure 4 As shown, the inner cavity of the air intake core 7 is formed with a first placement groove 702 for accommodating the sealing ring 4. Placing the sealing ring 4 in the inner cavity of the air intake core 7 makes the sealing effect of the water inlet pipe 6 better, the detection effect is more accurate, and the quality control of the product is more precise.

[0051] In this embodiment, if Figure 5 As shown, the bottom plate 101 is also provided with a second opening 101b, which is used to accommodate the water outlet pipe 5, and the upper end of the bottom plate 101 abuts against the lower end surface of the drum of the water outlet pipe 5. Figure 5 , Figure 8 As shown, the connection mode of the water inlet pipe 6 and the water outlet pipe 5 on the car oil cooler is usually to be installed on the same end surface of the air guide block 2, so a second opening 101b is formed on the bottom plate 101 for accommodating the water outlet pipe 5. In some corresponding embodiments, such as Figure 3 , Fig. 9 As shown, the air guide block 2 also includes: a second mounting groove 204, which is made on the same end surface as the first mounting groove 203 and is used to connect the water outlet pipe 5; an exhaust core 3 is installed in the second mounting groove 204, and the second mounting groove 204 is sealed and connected to the water outlet pipe 5 through the exhaust core 3. The detection gas enters the oil cooler 8 from the water inlet pipe 6, and the gas passes through the oil cooler 8 and is discharged from the water outlet pipe 5 and enters the exhaust core 3, which is a component specially used for sealing.

[0052] In this embodiment, if Figure 6 As shown, the exhaust core 3 is a cylindrical structure with an inner cavity, and further includes: a second socket 301, which is formed at one end of the exhaust core 3 and is used to insert the water outlet pipe 5. In some specific embodiments, such as Figure 6 As shown, a second placement groove 302 for accommodating the sealing ring 4 is formed in the inner cavity of the air intake core 7, which has the same effect as placing the sealing ring 4 in the inner cavity of the air intake core 7, so that the sealing effect is better, the detection effect is more accurate, and the quality control of the product is more precise.

[0053] In this embodiment, the air intake core 7 and the air guide block 2, as well as the exhaust core 3 and the air guide block 2, are installed by threads. This connection is firm and detachable, and the usage is more flexible.

[0054] In this embodiment, the gas guide block 2 and the connection fixture 1 are both made of brass, which is a very suitable material because of its high strength, high hardness, strong chemical corrosion resistance, and ability to withstand a certain pressure of compressed gas.

[0055] This utility model application takes the inlet and outlet water pipes of a car oil cooler as an example to describe the use steps of the detection tool, which are as follows:

[0056] S1. First, insert the water inlet pipe 6 and the water outlet pipe 5 to be tested into the air inlet core 7 and the exhaust core 3 in the air guide block 2 respectively, and then put the installed air guide block 2, the water inlet pipe 6 and the water outlet pipe 5 into the connection fixture 1 and clamp them, with the water inlet pipe 6 located at the first opening 101a and the water outlet pipe 5 located at the second opening 101b;

[0057] S2. After checking that the inspection tool, water inlet pipe 6, oil cooler 8 and water outlet pipe 5 are all well installed, connect the inflation device to the air pipe joint 202 of the air guide block 2, and introduce the inspection gas (helium), and the whole process is timed for 20 seconds;

[0058] S3. After the ventilation is completed, the sealing performance of the water inlet pipe 6 and the water outlet pipe 5 is determined according to the helium leakage displayed on the controller;

[0059] S4. After the inspection is completed, the inspection tool, the water inlet pipe 6, the oil cooler 8, and the water outlet pipe 5 are disassembled, and the next group of water pipes are inspected.

[0060] The preferred implementation modes of the utility model application are described in detail above in conjunction with the accompanying drawings; however, the present application is not limited to the specific details in the above implementation modes; within the scope of the disclosed technical concept, a variety of simple modifications can be made to the technical solution of the utility model application, and these simple modifications all fall within the protection scope of the present application.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0062] In addition, the various implementation modes of the present utility model application may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed in the present utility model application.

Claims

1. A water pipe air tightness detection tool, comprising an air guide block (2) and a connecting fixture (1), characterized in that , The air guide block (2) comprises: An air pipe joint (202) is provided on one end surface of the air guide block (2) and is used to connect with an air charging device to allow the detection gas to flow in; A first installation groove (203) is formed on the other end surface of the air guide block (2) and is used for connecting and installing with the water inlet pipe (6); A flow channel (201) is formed inside the air guide block (2), and the flow channel (201) connects the air pipe joint (202) with the first installation groove (203); The connecting fixture (1) comprises: a bottom plate (101) and a top plate (102); the bottom plate (101) is provided with a first opening (101a), the first opening (101a) being used to accommodate the water inlet pipe (6); the bottom plate (101) is fixedly connected to the top plate (102) via a side plate (103); the bottom plate (101) and the top plate (102) are used to place and clamp the air guide block (2) and the water inlet pipe (6); the lower end surface of the top plate (102) is in contact with the upper end surface of the air guide block (2), and the upper end surface of the bottom plate (101) is in contact with the lower end surface of the tube drum (601) of the water inlet pipe (6).

2. The water pipe air tightness detection tool according to claim 1, characterized in that: An air intake core (7) is installed in the first installation groove (203), and the water inlet pipe (6) is connected to the air guide block (2) through the air intake core (7).

3. The water pipe air tightness detection tool according to claim 2, characterized in that: The air intake core (7) is a cylindrical structure with an inner cavity, comprising: A first socket (701) is formed at one end of the air inlet core (7) and is used for inserting the water inlet pipe (6); A communication hole (703) is formed at the other end of the air intake core (7) and is connected to the flow channel (201).

4. The water pipe air tightness detection tool according to claim 3, characterized in that: The inner cavity of the air intake core (7) is provided with a first placement groove (702) for accommodating the sealing ring (4).

5. The water pipe air tightness detection tool according to claim 4, characterized in that: The bottom plate (101) is also provided with a second opening (101b), the second opening (101b) being used to accommodate a water outlet pipe (5), and the upper end of the bottom plate (101) is in contact with the lower end surface of the drum of the water outlet pipe (5).

6. The water pipe air tightness detection tool according to claim 5, characterized in that: The air guide block (2) also includes: The second installation groove (204) is formed on the same end surface as the first installation groove (203) and is used to connect to the water outlet pipe (5); an exhaust core (3) is installed in the second installation groove (204), and the second installation groove (204) is sealedly connected to the water outlet pipe (5) through the exhaust core (3).

7. The water pipe air tightness detection tool according to claim 6, characterized in that: The exhaust core (3) is a cylindrical structure having an inner cavity, and further comprising: a second socket (301) formed at one end of the exhaust core (3) for inserting the water outlet pipe (5).

8. The water pipe air tightness detection tool according to claim 7, characterized in that: A second placement groove (302) for accommodating the sealing ring (4) is formed in the inner cavity of the air intake core (7).

9. The water pipe air tightness detection tool according to claim 8, characterized in that: The air intake core (7) and the air guide block (2), and the exhaust core (3) and the air guide block (2) are both installed via threads.

10. The water pipe air tightness detection tool according to any one of claims 1 to 9, characterized in that: The air guide block (2) and the connecting fixture (1) are both made of brass.

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