A bridge assembly leak testing joint tool

Abstract

The present invention discloses a bridge assembly leak test joint tool, which relates to the technical field of bridge assembly leak test detection. The bridge assembly leak test joint tool comprises a leak test joint body, wherein the two ends of the leak test joint body are respectively an A end and a B end, and further comprises a first connecting component arranged on the A end for connecting with an inflatable device inflation pipe, and the B end is provided with a second connecting component for connecting with a bridge assembly ventilation pipe. When the present invention detects the sealing performance of the bridge assembly, the inflatable device inflation pipe and the bridge assembly ventilation pipe are respectively quickly installed and connected with the A end and the B end of the leak test joint body through the first connecting component and the second connecting component, and during the installation process, the adaptability during the connection process is improved through shrinkage and extrusion treatment, and it is convenient to install with pipes of different specifications, and during the installation process, an autonomous expansion seal is realized through the inflation transmission to ensure the sealing effect after connection.

Description

Technical Field

[0001] The invention relates to the technical field of bridge assembly leak testing, in particular to a bridge assembly leak testing joint tooling. Background Art

[0002] As an important component of a car, the air tightness of the bridge assembly is directly related to the safety performance of the vehicle. Through leak testing, potential air leakage problems can be discovered and repaired in time, thereby avoiding safety hazards caused by air leakage, such as brake system failure, suspension system abnormality, etc., and ensuring the stability and safety of the car during driving.

[0003] During the air tightness test of the bridge assembly, a joint tool is required to be installed and connected with the bridge assembly ventilation pipe and the inflation pipe of the inflation equipment. During the connection process of the joint tool, a quick-connect connector is required for auxiliary connection. The quick-connect connector has low adaptability during the connection process and is not convenient for installation, connection and sealing with pipes of different specifications, which affects the operation and use of the joint tool. For this reason, we propose a bridge assembly leak test joint tool. Summary of the invention

[0004] The purpose of the present invention is to provide a bridge assembly leak testing joint tool to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a bridge assembly leak test joint tool, comprising a leak test joint body, the two ends of the leak test joint body are respectively end A and end B, and further comprising:

[0006] A first connecting component is provided on the A end for connecting to the inflation pipe of the inflation device, a second connecting component is provided on the B end for connecting to the ventilation pipe of the bridge assembly, a sealing component is provided inside the B end for sealing during the connection with the ventilation pipe of the bridge assembly, and an inflation component is provided outside the leak test joint body for inflating the inside of the sealing component;

[0007] The second connecting component includes a conical surface opened on the outside of the B end, and a plurality of groups of grooves are opened on the conical surface, and each group of the grooves is connected to the inner side of the B end. An extrusion component for pressing the conical surface against the outer side of the B end is provided.

[0008] Preferably, the extrusion assembly includes an extrusion sleeve, the inner side of the extrusion sleeve is provided with a conical groove for extrusion against the conical surface, the inner side of the extrusion sleeve is connected to the outer side of the B end by a threaded transmission, and the inner side of the extrusion sleeve is provided with a plurality of positioning components for positioning during the connection process with the bridge assembly ventilation pipe.

[0009] Preferably, the sealing assembly comprises an annular connecting groove provided inside the leak test joint body, an annular sealing airbag is installed inside the annular connecting groove, and a positioning ring for abutting against the end of the bridge assembly is fixed inside the leak test joint body.

[0010] Preferably, the inflation component includes a piston tube arranged on the outside of the leak test joint body, one end of the piston tube is connected to the interior of the annular sealing airbag, a piston rod is slidably connected to the piston tube, a connecting ring is sleeved on the outside of the leak test joint body, one end of the piston rod is fixed to one side of the connecting ring, and a transmission assembly for connecting transmission is arranged between the connecting ring and the end of the extrusion sleeve.

[0011] Preferably, the piston tubes are provided in a plurality of groups, and the plurality of groups of piston tubes are arranged in a state of an annular array on the leak test joint body.

[0012] Preferably, the transmission assembly includes an annular groove opened at the end of the extrusion sleeve, an annular plate is rotatably connected inside the annular groove, the annular plate is fixed to the connecting ring, and the annular groove and the annular plate are arranged in a T shape.

[0013] Preferably, the first connecting component includes an annular protrusion arranged on the outside of the A end, a mounting tube is sleeved on the outside of the leak test joint body, an annular groove is provided on the inside of the mounting tube, the annular protrusion and the annular groove match each other and have a V-shaped cross-section, a mounting groove is provided on one side of the mounting tube, and the inner side of the mounting groove is connected to the outer side of the leak test joint body by means of threads.

[0014] Preferably, the positioning components are provided in multiple groups, and the multiple groups of positioning components are arranged in a ring array state.

[0015] Preferably, the positioning assembly includes a square groove opened inside the extrusion sleeve, and the square groove is connected to a positioning plate for pushing against the outer side of the bridge assembly ventilation pipe through a telescopic assembly. One side of the positioning plate is provided with an inclined surface for driving against the end of the bridge assembly ventilation pipe.

[0016] Preferably, the telescopic assembly includes multiple groups of sleeves fixed inside the square groove, the sleeves are slidably connected with a sliding rod, one end of the sliding rod is fixed to one end of the positioning plate, and a spring is sleeved on the outer side of the sleeve, and the two ends of the spring are respectively connected to the inside of the square groove and the positioning plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention detects the sealing performance of the bridge assembly, the inflation pipe of the inflation equipment and the ventilation pipe of the bridge assembly are quickly installed and connected to the A end and the B end of the leak test joint body respectively through the first connecting component and the second connecting component. During the installation process, the adaptability of the connection process is improved through shrinkage and extrusion treatment, which is convenient for installation with pipes of different specifications. During the installation process, autonomous expansion sealing is achieved through inflation transmission to ensure the sealing effect after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the first connection component of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the extrusion sleeve of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the positioning component and the telescopic component of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the sealing component, the inflation component and the transmission component of the present invention;

[0024] Figure 6 is a schematic structural diagram of a second connection assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the inflatable component of the present invention;

[0026] Figure 8 for Figure 5 Enlarged view of point A in the middle.

[0027] In the figure: 1. leak test joint body; 201. annular protrusion; 202. mounting tube; 203. annular groove; 204. mounting groove; 301. conical surface; 302. slot; 401. extrusion sleeve; 402. conical groove; 501. square groove; 502. positioning plate; 503. inclined surface; 601. sleeve; 602. slide rod; 603. spring; 701. annular connecting groove; 702. annular sealing airbag; 801. piston tube; 802. piston rod; 803. connecting ring; 901. annular groove; 902. annular plate; 10. positioning ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figure 1-Figure 8 The figure shows a bridge assembly leak test joint tool, comprising a leak test joint body 1, the two ends of the leak test joint body 1 are respectively an A end and a B end, and also includes:

[0031] A first connecting component is provided on the A end for connecting to the inflation pipe of the inflation device, a second connecting component is provided on the B end for connecting to the ventilation pipe of the bridge assembly, a sealing component is provided inside the B end for sealing during the connection with the ventilation pipe of the bridge assembly, and an inflation component is provided outside the leak test joint body 1 for inflating the inside of the sealing component;

[0032] The second connection component includes a conical surface 301 formed on the outer side of the B end, a plurality of groups of slots 302 are formed on the conical surface 301, and each group of slots 302 is connected to the inner side of the B end, and an extrusion component for pressing the conical surface 301 against the outer side of the B end is provided;

[0033] It should be noted here that: when testing the sealing of the bridge assembly, the inflation pipe of the inflation equipment and the ventilation pipe of the bridge assembly are quickly installed and connected to the A end and B end of the leak test joint body 1 respectively through the first connecting component and the second connecting component, and during the installation process, the adaptability of the connection process is improved through shrinkage and extrusion treatment, which is convenient for installation with pipes of different specifications, and during the installation process, autonomous expansion sealing is achieved through inflation transmission to ensure the sealing effect after connection.

[0034] Preferably, the extrusion assembly includes an extrusion sleeve 401, the inner side of the extrusion sleeve 401 is provided with a conical groove 402 for abutting against the conical surface 301 for extrusion, the inner side of the extrusion sleeve 401 is connected to the outer side of the B end by a threaded connection, and the inner side of the extrusion sleeve 401 is provided with a plurality of positioning assemblies for positioning during the connection process with the axle assembly vent pipe;

[0035] It should be noted here that: the extrusion sleeve 401 is rotated, and during the rotation of the extrusion sleeve 401, the extrusion sleeve 401 is driven by the threaded connection between the extrusion sleeve 401 and the outer side of the leak test joint body 1, so that the extrusion sleeve 401 moves toward the leak test joint body 1, and during the movement, the conical surface 301 is pressed against and squeezed through the conical groove 402. Since there are multiple groups of grooves 302 on the conical surface 301, during the process of pressing against and squeezing the conical surface 301, the inner side of the conical surface 301 is subjected to force to shrink evenly and press against the outer side of the axle assembly vent pipe after being inserted and connected, and the axle assembly vent pipe is installed and fixed to the B end of the leak test joint body 1 through the pressing effect.

[0036] Preferably, the sealing assembly includes an annular connecting groove 701 provided inside the leak test joint body 1, an annular sealing airbag 702 is installed inside the annular connecting groove 701, and a positioning ring 10 for abutting against the end of the bridge assembly is fixed inside the leak test joint body 1;

[0037] It should be noted here that: in the process of the extrusion sleeve 401 moving toward the leak test joint body 1, the interior of the annular sealing airbag 702 is inflated through the transmission assembly and the inflation assembly, and the annular sealing airbag 702 expands due to the internal pressure after inflation. In the process of the expansion of the annular sealing airbag 702, the inner side of the annular sealing airbag 702 is abutted against the outer side of the ventilation pipe connected to the rear axle assembly, and the ventilation pipe of the connected axle assembly is abutted and sealed, which facilitates more accurate air tightness detection operation of the rear axle assembly.

[0038] Preferably, the inflation component includes a piston tube 801 arranged on the outside of the leak test joint body 1, one end of the piston tube 801 is connected to the inside of the annular sealing airbag 702, a piston rod 802 is slidably connected to the piston tube 801, a connecting ring 803 is sleeved on the outside of the leak test joint body 1, one end of the piston rod 802 is fixed to one side of the connecting ring 803, and a transmission component for connecting transmission is arranged between the connecting ring 803 and the end of the extrusion sleeve 401;

[0039] It should be noted here that: in the process of the extrusion sleeve 401 moving toward the leak test joint body 1, the connecting transmission action of the annular groove 901 and the annular plate 902 drives the connecting ring 803 to move synchronously. In the process of the movement of the connecting ring 803, each group of piston rods 802 is pushed to move toward the inside of each group of piston tubes 801 respectively. Through the movement of the piston rods 802, part of the gas inside the piston tube 801 is squeezed and transported to the inside of the annular sealing airbag 702, and the inside of the annular sealing airbag 702 is inflated.

[0040] Preferably, there are multiple groups of piston tubes 801, and the multiple groups of piston tubes 801 are arranged in a state of an annular array on the leak test joint body 1;

[0041] It should be noted here that the efficiency and effect of inflation are guaranteed by using multiple groups of piston tubes 801.

[0042] Preferably, the transmission assembly includes an annular groove 901 formed at the end of the extrusion sleeve 401, an annular plate 902 is rotatably connected inside the annular groove 901, the annular plate 902 is fixed to the connecting ring 803, and the annular groove 901 and the annular plate 902 are arranged in a T shape;

[0043] It should be noted here that: the annular groove 901 and the annular plate 902 facilitate the synchronous movement of the connecting ring 803 when the extrusion sleeve 401 moves, and the annular groove 901 and the annular plate 902 facilitate the rotatable connection between the extrusion sleeve 401 and the connecting ring 803.

[0044] Preferably, the first connecting component includes an annular protrusion 201 arranged on the outer side of the A end, a mounting tube 202 is sleeved on the outer side of the leak test joint body 1, an annular groove 203 is provided on the inner side of the mounting tube 202, the annular protrusion 201 and the annular groove 203 match each other and the cross-sections are both V-shaped, a mounting groove 204 is provided on one side of the mounting tube 202, and the inner side of the mounting groove 204 is connected to the outer side of the leak test joint body 1 by a threaded manner for transmission;

[0045] It should be noted here that: when testing the sealing of the bridge assembly, the A end of the leak test joint body 1 is installed and connected with the inflation tube of the inflatable device. During the connection process, one end of the inflation tube of the inflatable device is passed through the gap between the A end and the installation tube 202. During the insertion of the inflation tube of the inflatable device, the annular protrusion 201 on the outside of the leak test joint body 1 and the annular groove 203 inside the installation tube 202 are arranged in a staggered state, so that the inflation tube of the inflatable device can be smoothly inserted. After the inflatable device inflation tube is inserted, the installation tube 202 is rotated. During the rotation of the installation tube 202, the installation tube 202 is moved on the outside of the leak test joint body 1 through the threaded transmission effect of the inner side of the installation groove 204 and the outer side of the leak test joint body 1. During the movement, the annular groove 203 moves toward the annular protrusion 201. During the movement, the inserted inflation tube of the inflatable device is squeezed to ensure the effect of connecting the inflation tube of the inflatable device.

[0046] It is worth noting that: before installation, the annular protrusions 201 and the annular grooves 203 are arranged in a staggered state, so as to facilitate the insertion operation of the inflation tube of the inflatable device.

[0047] Preferably, there are multiple groups of positioning components, and the multiple groups of positioning components are arranged in a ring array state;

[0048] It should be noted here that the positioning effect is ensured by using multiple groups of positioning components arranged in a circular array.

[0049] Preferably, the positioning assembly includes a square groove 501 provided inside the extrusion sleeve 401, a positioning plate 502 for pushing against the outer side of the axle assembly vent pipe is connected to the square groove 501 through a telescopic assembly, and a slope 503 for driving against the end of the axle assembly vent pipe is provided on one side of the positioning plate 502;

[0050] It should be noted here that: in the process of pushing the bridge assembly vent pipe to the B end, the front end of the bridge assembly vent pipe is abutted against the inclined surface 503 on each group of positioning plates 502. In the process of abutting against each other, each group of positioning plates 502 is pushed to contract against the inside of the square groove 501. After the bridge assembly vent pipe is pushed into the inside of the extrusion sleeve 401, the telescopic component is used to push each group of positioning plates 502 to abut against the four sides of the bridge assembly vent pipe respectively, so as to center the bridge assembly vent pipe during the pushing process, so as to facilitate more precise connection operations later.

[0051] Preferably, the telescopic assembly includes a plurality of sets of sleeves 601 fixed inside the square groove 501, a slide bar 602 is slidably connected to the sleeve 601, one end of the slide bar 602 is fixed to one end of the positioning plate 502, a spring 603 is sleeved on the outer side of the sleeve 601, and both ends of the spring 603 are respectively connected to the inside of the square groove 501 and the positioning plate 502;

[0052] It should be noted that: the sleeve 601 and the slide rod 602 facilitate the telescopic guiding movement of the positioning plate 502 after being subjected to force, and the spring 603 facilitates the resetting movement of the positioning plate 502 after contraction.

[0053] In this scheme: a bridge assembly leak test joint tooling includes the following steps:

[0054] When testing the sealing performance of the bridge assembly, the A end of the leak test joint body 1 is installed and connected with the inflation tube of the inflatable device. During the connection process, one end of the inflation tube of the inflatable device is passed through the gap between the A end and the installation tube 202. During the insertion of the inflation tube of the inflatable device, the annular protrusion 201 on the outer side of the leak test joint body 1 and the annular groove 203 inside the installation tube 202 are arranged in a staggered state, so that the inflation tube of the inflatable device can be smoothly inserted. After the inflatable device inflation tube is inserted, the installation tube 202 is rotated. During the rotation of the installation tube 202, the installation tube 202 is moved on the outer side of the leak test joint body 1 through the threaded transmission effect of the inner side of the installation groove 204 and the outer side of the leak test joint body 1. During the movement, the annular groove 203 moves toward the annular protrusion 201. During the movement, the inserted inflation tube of the inflatable device is squeezed to ensure the effect of connecting the inflation tube of the inflatable device.

[0055] After the inflation tube of the inflatable device is installed and connected, the bridge assembly vent tube is installed and connected with the B end of the leak test joint body 1. During the connection process, one end of the bridge assembly vent tube is pushed into the B end of the leak test joint body 1 and abutted against the positioning ring 10. After the pushing is completed, the extrusion sleeve 401 is rotated. During the rotation of the extrusion sleeve 401, the extrusion sleeve 401 is driven by the threaded connection between the extrusion sleeve 401 and the outer side of the leak test joint body 1, so that the extrusion sleeve 401 moves toward the leak test joint body 1. During the movement, the conical surface 301 is pressed against and squeezed by the conical groove 402. Because there are multiple groups of grooves 302 on the conical surface 301, during the process of pressing against and squeezing the conical surface 301, the inner side of the conical surface 301 is subjected to uniform contraction and abutted against the outer side of the bridge assembly vent tube after insertion and connection. Through the abutting and squeezing effect, the bridge assembly vent tube is installed and fixed at the B end of the leak test joint body 1.

[0056] During the movement of the extrusion sleeve 401 toward the leak test joint body 1, the connecting transmission action of the annular groove 901 and the annular plate 902 drives the connecting ring 803 to move synchronously. During the movement of the connecting ring 803, each group of piston rods 802 is pushed to move toward the inside of each group of piston tubes 801 respectively. Through the movement of the piston rods 802, part of the gas inside the piston tubes 801 is squeezed and transported to the inside of the annular sealing airbag 702, and the inside of the annular sealing airbag 702 is inflated. After inflation, the annular sealing airbag 702 expands due to the internal pressure. During the expansion of the annular sealing airbag 702, the inner side of the annular sealing airbag 702 is abutted against the outer side of the ventilation pipe connected to the rear axle assembly, and the ventilation pipe of the connected axle assembly is abutted and sealed, so as to facilitate more accurate air tightness detection operation of the rear axle assembly.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge assembly leak testing joint tool, comprising: A leak test joint body (1), wherein two ends of the leak test joint body (1) are end A and end B respectively; It is characterized by further comprising: A first connection component is arranged on the A end for connecting to the inflation pipe of the inflation device, a second connection component is arranged on the B end for connecting to the ventilation pipe of the bridge assembly, a sealing component is arranged inside the B end for sealing during the connection with the ventilation pipe of the bridge assembly, and an inflation component is arranged outside the leak test joint body (1) for inflating the inside of the sealing component; The second connection component comprises a conical surface (301) provided on the outer side of the B end, a plurality of groups of slots (302) are provided on the conical surface (301), and each group of the slots (302) is arranged in communication with the inner side of the B end, and an extrusion component for pressing against the conical surface (301) is arranged on the outer side of the B end; The extrusion assembly comprises an extrusion sleeve (401), the inner side of the extrusion sleeve (401) is provided with a conical groove (402) for abutting against the conical surface (301) for extrusion, the inner side of the extrusion sleeve (401) is connected to the outer side of the B end by a threaded connection, and the inner side of the extrusion sleeve (401) is provided with a plurality of positioning assemblies for positioning during the connection process with the axle assembly vent pipe; The sealing assembly comprises an annular connection groove (701) provided inside the leak test joint body (1), an annular sealing airbag (702) is installed inside the annular connection groove (701), and a positioning ring (10) for abutting against the end of the bridge assembly is fixed inside the leak test joint body (1); The inflation component comprises a piston tube (801) arranged on the outside of the leak test joint body (1), one end of the piston tube (801) is arranged to communicate with the inside of the annular sealing airbag (702), a piston rod (802) is slidably connected to the piston tube (801), a connecting ring (803) is sleeved on the outside of the leak test joint body (1), one end of the piston rod (802) is fixed to one side of the connecting ring (803), and a transmission component for connecting transmission is arranged between the connecting ring (803) and the end of the extrusion sleeve (401).

2. The leak testing joint tool for axle assembly according to claim 1, characterized in that: The piston tubes (801) are provided in multiple groups, and the multiple groups of piston tubes (801) are arranged in a state of an annular array on the leak test joint body (1).

3. The leak testing joint tool for axle assembly according to claim 2, characterized in that: The transmission assembly comprises an annular groove (901) formed at the end of an extrusion sleeve (401), an annular plate (902) being rotatably connected inside the annular groove (901), the annular plate (902) being fixed to a connecting ring (803), and the annular groove (901) and the annular plate (902) being arranged in a T-shape.

4. The leak testing joint tool for axle assembly according to claim 1, characterized in that: The first connection component comprises an annular protrusion (201) arranged on the outer side of the A end; a mounting tube (202) is sleeved on the outer side of the leak test joint body (1); an annular groove (203) is provided on the inner side of the mounting tube (202); the annular protrusion (201) and the annular groove (203) match each other and both have V-shaped cross-sections; a mounting groove (204) is provided on one side of the mounting tube (202); the inner side of the mounting groove (204) is connected to the outer side of the leak test joint body (1) by means of a thread for transmission.

5. The leak testing joint tool for axle assembly according to claim 2, characterized in that: The positioning components are arranged in multiple groups, and the multiple groups of positioning components are arranged in a ring array state.

6. The leak testing joint tool for axle assembly according to claim 5, characterized in that: The positioning assembly comprises a square groove (501) provided inside the extrusion sleeve (401), and a positioning plate (502) for pushing against the outside of the bridge assembly ventilation pipe is connected to the square groove (501) through a telescopic assembly, and a slope (503) for pushing against the end of the bridge assembly ventilation pipe is provided on one side of the positioning plate (502).

7. The leak testing joint tool for axle assembly according to claim 6, characterized in that: The telescopic assembly includes a plurality of sleeves (601) fixed inside a square groove (501), a slide rod (602) being slidably connected to the sleeve (601), one end of the slide rod (602) being fixed to one end of a positioning plate (502), a spring (603) being sleeved on the outer side of the sleeve (601), and two ends of the spring (603) being respectively connected to the inside of the square groove (501) and the positioning plate (502).

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