Test connector

Abstract

The utility model provides a test connector. The test connector comprises a connecting pipe, a first sealing piece, a pressing pipe and a push-pull assembly. Wherein the connecting pipe limits a containing cavity, the connecting pipe comprises a first end and a second end which are arranged oppositely, the first end is provided with a limiting face, and the limiting face faces the containing cavity. The first sealing piece is contained in the containing cavity and limited to the limiting face. The pressing pipe is contained in the containing cavity, and the pressing pipe is arranged close to the first sealing piece. The push-pull assembly is connected with the pressing pipe, the push-pull assembly is connected with the second end in a sealed mode, and the push-pull assembly is used for driving the pressing pipe to slide in the containing cavity to extrude the first sealing piece, so that the radial size of the first sealing piece is increased. According to the test connector provided by the invention, the air tightness of the wire harness can be rapidly and efficiently tested.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a test connector. Background Art

[0002] With the development of the industrial power supply industry, power supply equipment is increasingly equipped with external wiring harnesses, placing higher demands on the airtightness of wiring harnesses. Poor wiring harness airtightness can allow external contaminants to enter the harness, damaging the internal structure of the harness and the equipment connected to it, causing short circuits or failures, and thus compromising the safety of the power supply equipment. Currently, wiring harnesses must be tested for airtightness before use. However, the tools used in related technologies for testing wiring harness airtightness are large in size and weight, have numerous components, and are expensive to produce. The testing process is complex and inconvenient, resulting in low testing efficiency. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present application is that the existing testing methods for the air tightness of a wiring harness are large in quantity and complex in testing process, and a test connector is provided to achieve fast and efficient testing of the air tightness of the wiring harness.

[0004] In a first aspect, the present application provides a test connector, comprising:

[0005] a connecting pipe defining a receiving cavity, the connecting pipe comprising a first end and a second end disposed opposite to each other, the first end having a limiting surface, the limiting surface facing the receiving cavity;

[0006] a first sealing member received in the receiving cavity and limited to the limiting surface;

[0007] a pressure tube, the pressure tube being received in the receiving cavity and being disposed close to the first sealing member; and

[0008] A push-pull assembly is connected to the pressure tube and is sealed to the second end. The push-pull assembly is used to drive the pressure tube to slide in the receiving cavity to squeeze the first sealing member, so that the radial size of the first sealing member increases.

[0009] The test connector provided by the embodiment of the present application comprises a connecting pipe, a first sealing member, a pressing pipe and a push-pull assembly. The accommodating cavity defined by the connecting pipe can accommodate the pressing pipe and the first sealing member, and can also be used to accommodate a wire harness under test, so as to realize the air tightness test of the wire harness under test. The first sealing member can increase in radial dimension under extrusion, and the pressing pipe can slide in the accommodating cavity and cooperate with the limiting surface of the first end of the connecting pipe to extrude the first sealing member and make the first sealing member increase in radial dimension. The push-pull assembly can realize the sealing of the second end, and can also drive the pressing pipe to slide in the accommodating cavity to extrude the first sealing member. When the test connector of the embodiment of the present application is used to test the air tightness of the wire harness under test, the wire harness under test is inserted into the accommodating cavity from the first end, the push-pull assembly drives the pressing pipe to slide in the accommodating cavity to extrude the first sealing member, the first sealing member increases in radial dimension and cooperates with the wire harness under test to realize the sealing of the first end, so as to further realize the sealing of the accommodating cavity.

[0010] In some embodiments, the pressing pipe comprises:

[0011] the pressing pipe proper; and

[0012] a first connecting portion provided at one end of the pressing pipe proper away from the first sealing member;

[0013] The push-pull assembly comprises:

[0014] a push rod partially accommodated in the connecting pipe and partially extending out of the connecting pipe from the second end, the push rod comprising a second connecting portion fixedly connected with the first connecting portion, and the push rod being used to drive the pressing pipe proper to slide in the accommodating cavity to extrude the first sealing member.

[0015] The test connector provided by the embodiment of the present application comprises a pressing pipe comprising a pressing pipe proper and a first connecting portion, and a push-pull assembly comprising a push rod. When the test connector of the embodiment of the present application is used to test the air tightness of a wire harness under test, the push rod can drive the pressing pipe proper to slide in the accommodating cavity, and the pressing pipe proper can be used to extrude the first sealing member in the accommodating cavity, the first connecting portion of the pressing pipe is fixedly connected with the second connecting portion of the push rod, so as to realize the fixed connection between the pressing pipe and the push rod.

[0016] In some embodiments, the push-pull assembly further comprises:

[0017] a second sealing member provided at the second end and partially accommodated in the accommodating cavity, the second sealing member having a first through hole through which the push rod passes.

[0018] The test connector provided by the embodiments of the present application further comprises a second sealing member, which can seal the second end of the connecting pipe. The second sealing member has a first through hole, which can accommodate the push rod part in the accommodating cavity and slide along the connecting pipe to drive the pressing pipe to slide in the accommodating cavity.

[0019] In some embodiments, the push rod further comprises:

[0020] A third connecting part is arranged at one end of the push rod away from the pressing pipe.

[0021] The push-pull assembly further comprises:

[0022] A handle is provided, which comprises a fourth connecting part hingedly connected with the third connecting part, and is used to drive the push rod to slide in the accommodating cavity.

[0023] The test connector provided by the embodiments of the present application further comprises a handle, which can be used to control the push rod to slide along the connecting pipe in the accommodating cavity. The push rod further comprises a third connecting part, and the handle comprises a fourth connecting part hingedly connected with the third connecting part, so as to realize the hinged connection between the handle and the push rod.

[0024] In some embodiments, the push-pull assembly further comprises:

[0025] A hinge part is provided, which comprises a fifth connecting part and a sixth connecting part.

[0026] The second sealing member comprises:

[0027] A seventh connecting part is arranged at the outer periphery of the second sealing member, and is hingedly connected with the fifth connecting part.

[0028] The handle further comprises:

[0029] An eighth connecting part is hingedly connected with the sixth connecting part.

[0030] The test connector provided by the embodiment of the present application, the push-pull assembly further comprises a hinge, which can realize that the handle controls the push rod to drive the compression tube to move. The hinge comprises a fifth connecting part and a sixth connecting part, the second sealing part comprises a seventh connecting part, the handle further comprises an eighth connecting part, the seventh connecting part is hingedly connected with the fifth connecting part to realize the hinged connection between the hinge and the second sealing part, and the eighth connecting part is hingedly connected with the sixth connecting part to realize the hinged connection between the hinge and the handle.

[0031] In some embodiments, the second sealing part comprises:

[0032] a first part accommodated in the accommodation cavity;

[0033] a second part, one end of the second part being connected with the first part away from the side of the compression tube; and

[0034] a third part connected with the other end of the second part, the second part cooperating with the first part and the third part to form a groove;

[0035] The push-pull assembly further comprises:

[0036] a connecting part fixedly connected with the second end, the connecting part being sleeved on the outer circumferential side of the second part and abutting against the first part and the third part.

[0037] The test connector provided by the embodiment of the present application, the second sealing part comprises a first part, a second part and a third part, the first part is accommodated in the accommodation cavity to realize the connection between the second sealing part and the second end. The push-pull assembly further comprises a connecting part, the connecting part is sleeved on the outer circumferential side of the second part and abuts against the first part and the third part, thereby realizing the position limitation of the second sealing part.

[0038] In some embodiments, the test connector further comprises:

[0039] a third sealing part abutting against the second end, the connecting part and the first part respectively, for sealing the second end.

[0040] The test connector provided by the embodiment of the present application, the test connector further comprises a third sealing part, which can realize the sealing of the second end of the connecting tube, enhance the sealing effect of the second end and the second sealing part, and thereby enhance the accuracy of the air tightness test result of the test connector.

[0041] In some embodiments, the connecting tube further comprises:

[0042] a tube body connected to the first end at one end and connected to the second end at the other end, and having a second through hole;

[0043] the pressing tube further has:

[0044] a third through hole arranged corresponding to the second through hole;

[0045] the test connector further comprises:

[0046] an inflation nozzle connected to the connecting tube through the second through hole, and used for connecting an inflation device to inflate the receiving cavity to test the air tightness of the sample.

[0047] The test connector provided by the embodiment of the application further comprises a tube body having a second through hole, the pressing tube further has a third through hole, and the test connector further comprises an inflation nozzle. The second through hole and the third through hole can realize the inflating of the receiving cavity with gas, and the inflation nozzle is used for connecting the inflation device. When the test connector of the embodiment of the application tests the air tightness of the sample wire harness, the second through hole, the third through hole and the inflation nozzle can realize the inflating of the sample wire harness to test the air tightness of the sample wire harness.

[0048] In some embodiments, the pressing tube further has:

[0049] a limiting groove arranged towards the inflation nozzle, the limiting groove and the inner wall of the connecting tube together defining an inflation sub-cavity, and the third through hole is arranged corresponding to the limiting groove;

[0050] the inflation nozzle further comprises:

[0051] an inflation part accommodated in the inflation sub-cavity.

[0052] The test connector provided by the embodiment of the application further comprises a limiting groove of the pressing tube, and the inflation nozzle further comprises an inflation part. When the test connector of the embodiment of the application tests the air tightness of the sample wire harness, the limiting groove can realize the limitation of the displacement range of the pressing tube, so as to avoid the excessive extrusion of the pressing tube to the first elastic member, thereby preventing the damage of the first elastic member and increasing the service life of the first sealing member.

[0053] In some embodiments, the test connector further comprises:

[0054] a first gasket accommodated in the receiving cavity and arranged between the first sealing member and the first end to abut against the limiting surface; and

[0055] A second gasket is accommodated in the accommodating cavity and arranged between the first sealing member and the pressing pipe.

[0056] The test connector provided by the embodiment of the application further comprises a first gasket and a second gasket. The first gasket and the second gasket make the first sealing member not directly contact the first end and the pressing pipe, so that the first sealing member is more balanced in extrusion force, and the effect of increasing the radial dimension of the first sealing member for sealing the accommodating cavity is better. Meanwhile, the first sealing member is less likely to be damaged due to too small force area, so that the service life of the first sealing member is increased. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0058] Figure 1 is a schematic diagram of a perspective structure of a test connector according to an embodiment of the present application;

[0059] Figure 2 is a schematic diagram of a cross-sectional structure of the test connector along line A-A shown in Figure 1

[0060] Figure 3 is a schematic diagram of a partial enlarged view of the test connector II part shown in Figure 2

[0061] Figure 4 is a schematic diagram of a perspective structure of a test connector according to an embodiment of the present application;

[0062] Figure 5 is a schematic diagram of a cross-sectional structure of the test connector along line B-B shown in Figure 4

[0063] is a schematic diagram of a perspective structure of a test connector according to an embodiment of the present application; Figure 6

[0064] Figure 7 is a schematic diagram of a partial enlarged view of the test connector I part shown in Figure 1

[0065] Figure 8 is a schematic diagram of a perspective structure of a test connector according to an embodiment of the present application;

[0066] ​​​​Figure 9 is a partial enlarged schematic view of the test connector III part shown in Figure 5

[0067] Figure 10 is a schematic view of a second sealing member according to an embodiment of the application;

[0068] Figure 11 is a partial enlarged schematic view of the test connector III part shown in Figure 10

[0069] Figure 12 is a partial enlarged schematic view of the test connector IV part shown in Figure 5

[0070] Figure 13 is a schematic view of a pressing pipe according to an embodiment of the application;

[0071] Figure 14 is a partial enlarged schematic view of the test connector III part shown in Figure 13

[0072] BRIEF DESCRIPTION OF THE DRAWINGS

[0073] test connector 1, connecting pipe 11, first sealing member 12, pressing pipe 13, push-pull assembly 14, third sealing member 15, inflation nozzle 16, first gasket 17, second gasket 18, first hinged shaft 101, second hinged shaft 102, third hinged shaft 103, inflation part 161, fourth through hole 16a,

[0074] first end 111, limiting surface 111a, second end 112, first wall surface 112a, second wall surface 112b, chamfered surface 112c, pipe body 113, second through hole 113a, accommodating cavity 11a,

[0075] pressing pipe main part 131, first connecting part 132, third through hole 13a, accommodating sub-cavity 13b, limiting groove 13c, inflation sub-cavity 13d, first sub-surface 131a, second sub-surface 131b, third sub-surface 131c

[0076] push rod 141, second connecting part 1411, third connecting part 1412, second sealing member 142, first through hole 142a, groove 142b, first part 1421, second part 1422, third part 1423, seventh connecting part 1424, first circumferential surface 1421a, first end surface 1421b, second circumferential surface 1422a, second end surface 1423a,

[0077] ​​​​Connecting piece 143, first surface 143a, second surface 143b, handle 144, fourth connecting part 1441, eighth connecting part 1442, grip 1443, hinged piece 1444, hinged piece 145, fifth connecting part 1451, sixth connecting part 1452, first hinged part 1453, second hinged part 1454, connecting bottom part 1455. DETAILED DESCRIPTION

[0078] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0079] The terms "first", "second", and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0080] Reference herein to "an embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment or embodiments can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, or necessarily alternatives to other embodiments. It will be explicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0081] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a perspective structural schematic view of a test connector according to an embodiment of the present application; Figure 2 is Figure 1 a sectional structural schematic view of the test connector shown in FIG. 1 along line A-A; Figure 3 is Figure 2A partial enlarged view of the test connector I is shown. An embodiment of the present application provides a test connector 1, which comprises a connecting pipe 11, a first sealing member 12, a pressing pipe 13 and a push-pull assembly 14. The connecting pipe 11 defines a receiving cavity 11a, and comprises a first end 111 and a second end 112 oppositely arranged, the first end 111 has a limiting surface 111a facing the receiving cavity 11a. The first sealing member 12 is received in the receiving cavity 11a and is limited by the limiting surface 111a. The pressing pipe 13 is received in the receiving cavity 11a and is arranged close to the first sealing member 12. The push-pull assembly 14 is connected to the pressing pipe 13 and is sealingly connected to the second end 112, and is used to drive the pressing pipe 13 to slide in the receiving cavity 11a to press the first sealing member 12, so that the radial dimension of the first sealing member 12 is increased.

[0082] It can be understood that the test connector 1 provided by the embodiment of the present application is a test connecting device used for connecting with a measured wire harness to test the air tightness of the measured wire harness. When the test connector 1 is used to test the air tightness of the measured wire harness, the measured part of the measured wire harness is inserted into the receiving cavity 11a by the first end 111, and the push-pull assembly 14 is moved to drive the pressing pipe 13 to slide in the receiving cavity 11a to press the first sealing member 12, so that the radial dimension of the first sealing member 12 is increased by the pressing of the first end 111 and the pressing pipe 13. The first sealing member 12 with the increased radial dimension elastically abuts the outer circumferential side of the measured wire harness and the inner wall surface of the connecting pipe 11 in the radial direction, so as to realize the sealing of the first end 111 and the fixation of the test connector 1 and the measured wire harness. The fixed measured wire harness is tested for air tightness in the sealed receiving cavity 11a, and after the test, the push-pull assembly 14 is moved to drive the pressing pipe 13 to slide in the receiving cavity 11a away from the first elastic member, so as to reduce the radial dimension of the first sealing member 12 to separate the first sealing member 12 from the outer circumferential side of the measured wire harness, thereby realizing the separation of the test connector 1 and the measured wire harness.

[0083] The connecting pipe 11 comprises a first end 111 and a second end 112 arranged oppositely. It can be understood that the connecting pipe 11 further comprises a pipe body 113, and the first end 111, the pipe body 113 and the second end 112 are sequentially connected. Optionally, the pipe body 113 is a tubular structure with both ends open, and an inner wall surface of the pipe body 113 defines the accommodation cavity 11a. The limiting surface 111a and the inner wall surface of the pipe body 113 are connected by bending. In an optional embodiment, the first end 111 is connected to the pipe body 113 by bending. It can be understood that the first end 111 further has a through hole communicating the accommodation cavity 11a and the outside. When the test connector 1 is used to test the air tightness of the measured wire harness, the first sealing member 12 and the measured wire harness jointly seal the through hole of the first end 111. It can be understood that the second end 112 further has a through hole communicating the accommodation cavity 11a and the outside, and the push-pull assembly 14 seals the through hole of the second end 112.

[0084] The test connector 1 comprises a first sealing member 12. The first sealing member 12 can be, but is not limited to, a flexible sealing ring such as a silica gel sealing ring or a rubber sealing ring. It can be understood that the first sealing member 12 has a through hole, and the first sealing member 12 will elastically deform when being extruded. When the test connector 1 is used to test the air tightness of the measured wire harness, the first sealing member 12 is extruded by the first end 111 and the pressing pipe 13 in a direction parallel to the connecting pipe 11, and the radial dimension of the first sealing member 12 increases. The outer circumferential side surface of the first sealing member 12 abuts against the inner wall surface of the connecting pipe 11, and the surface of the through hole of the first sealing member 12 abuts against the outer circumferential side surface of the measured wire harness, so as to realize the sealing of the first end 111. The above is an example of the structure of the first sealing member 12 provided in the embodiments of the present application, and should not be understood as a limitation of the structure of the first sealing member 12 provided in the embodiments of the present application.

[0085] The test connector 1 comprises a pressing pipe 13 and a push-pull assembly 14. It can be understood that the pressing pipe 13 is a tubular structure, and optionally, the pressing pipe 13 defines an accommodation sub-cavity 13b. When the test connector 1 is used to test the air tightness of the measured wire harness, the measured part of the measured wire harness is inserted into the accommodation sub-cavity 13b of the pressing pipe 13 from the first end 111, the first sealing member 12 is extruded and sealed by the pressing pipe 13 to seal the accommodation cavity 11a, and the measured wire harness is subjected to air tightness test in the accommodation sub-cavity 13b. It can be understood that the push-pull assembly 14 is connected to the pressing pipe 13 and the connecting pipe 11 respectively. It can be understood that the push-pull assembly 14 can drive the pressing pipe 13 to slide in the accommodation cavity 11a towards the first sealing member 12, and also can drive the pressing pipe 13 to slide in the accommodation cavity 11a away from the first sealing member 12.

[0086] In summary, the test connector 1 provided by the embodiment of the present application comprises a connecting pipe 11, a first sealing member 12, a pressing pipe 13 and a push-pull assembly 14. The accommodating cavity 11a defined by the connecting pipe 11 can accommodate the pressing pipe 13 and the first sealing member 12, and can also be used to accommodate the wire harness under test, so as to realize the air tightness test of the wire harness under test. The first sealing member 12 can increase in radial dimension under extrusion, and the pressing pipe 13 can slide in the accommodating cavity 11a and cooperate with the limiting surface 111a of the first end 111 of the connecting pipe 11 to extrude the first sealing member 12 and make the first sealing member 12 increase in radial dimension. The push-pull assembly 14 can realize the sealing of the second end 112 and also can drive the pressing pipe 13 to slide in the accommodating cavity 11a to extrude the first sealing member 12. When the test connector 1 of the embodiment of the present application is used to test the air tightness of the wire harness under test, the wire harness under test is inserted into the accommodating cavity 11a from the first end 111, the push-pull assembly 14 drives the pressing pipe 13 to slide in the accommodating cavity 11a to extrude the first sealing member 12, the first sealing member 12 increases in radial dimension and cooperates with the wire harness under test to realize the sealing of the first end 111, so as to further realize the sealing of the accommodating cavity 11a.

[0087] Please refer to Figure 3 and Figure 4 , Figure 5 and Figure 6 , Figure 4 is a top view structural schematic diagram of the test connector of an embodiment of the present application; Figure 5 is a sectional view structural schematic diagram of the test connector shown in Figure 4 along line B-B; Figure 6 is a three-dimensional structural schematic diagram of the test connector of an embodiment of the present application in a separated state. Further, in some embodiments, the pressing pipe 13 comprises a pressing pipe main part 131 and a first connecting part 132. The first connecting part 132 is arranged at one end of the pressing pipe main part 131 away from the first sealing member 12. The push-pull assembly 14 comprises a push rod 141, one part of the push rod 141 is accommodated in the connecting pipe 11, and the other part extends out of the connecting pipe 11 from the second end 112. The push rod 141 comprises a second connecting part 1411, the second connecting part 1411 is fixedly connected with the first connecting part 132, and the push rod 141 is used to drive the pressing pipe main part 131 to slide in the accommodating cavity 11a to extrude the first sealing member 12.

[0088] The pressing pipe 13 comprises a pressing pipe body 131 and a first connecting portion 132. In an alternative embodiment, the pressing pipe body 131 is a tubular structure, and the pressing pipe body 131 defines a receiving sub-cavity 13b. When the test connector 1 is used to test the air tightness of the measured wire harness, the measured portion of the measured wire harness is inserted into the receiving sub-cavity 13b of the pressing pipe 13 from the first end 111, and the measured wire harness is subjected to air tightness test in the receiving sub-cavity 13b. In an alternative embodiment, the first connecting portion 132 seals the tubular structure of the pressing pipe body 131 away from the first sealing member 12. The above is an example of the structure of the pressing pipe 13 provided by the embodiments of the present application, and should not be understood as a limitation of the structure of the pressing pipe 13 provided by the embodiments of the present application.

[0089] The second connecting portion 1411 is fixedly connected with the first connecting portion 132, and the push rod 141 is used to drive the pressing pipe body 131 to slide in the receiving cavity 11a to press the first sealing member 12. It can be understood that the push rod 141 can slide relative to the connecting pipe 11. Alternatively, the first connecting portion 132 is one of a groove or a protrusion, the second connecting portion 1411 is the other of a groove or a protrusion, and the first connecting portion 132 and the second connecting portion 1411 are matched and fixed, so as to fixedly connect the pressing pipe 13 and the push rod 141.

[0090] In summary, the test connector 1 provided by the embodiments of the present application comprises the pressing pipe 13 comprising the pressing pipe body 131 and the first connecting portion 132, and the push-pull assembly 14 comprising the push rod 141. When the test connector 1 of the embodiments of the present application is used to test the air tightness of the measured wire harness, the push rod 141 can drive the pressing pipe body 131 to slide in the receiving cavity 11a, and the pressing pipe body 131 can be used to press the first sealing member 12 in the receiving cavity 11a. The first connecting portion 132 and the second connecting portion 1411 of the push rod 141 are fixedly connected, so as to fixedly connect the pressing pipe 13 and the push rod 141.

[0091] Please refer to Figure 4 , Figure 5 and Figure 6 again. Further, in some of the embodiments, the push-pull assembly 14 further comprises a second sealing member 142, the second sealing member 142 is arranged at the second end 112 and partially received in the receiving cavity 11a, the second sealing member 142 has a first through hole 142a, and the push rod 141 passes through the first through hole 142a.

[0092] It can be understood that the second sealing member 142 has an inner wall surface defining the first through hole 142a, and the push rod 141 has an outer peripheral surface. In an alternative embodiment, the first through hole 142a is arranged at a central position of the second sealing member 142. In an alternative embodiment, the inner wall surface of the second sealing member 142 is an approximately smooth surface, the outer peripheral surface of the push rod 141 is an approximately smooth surface, and the inner wall surface of the second sealing member 142 closely contacts the outer peripheral surface of the push rod 141, the push rod 141 is limited by the inner wall surface of the second sealing member 142 and slides relative to the second sealing member 142. The above is an example of the structure of the second sealing member 142 and the push rod 141 provided in the embodiments of the present application, and should not be understood as a limitation of the structure of the second sealing member 142 and the push rod 141 provided in the embodiments of the present application.

[0093] In summary, the test connector 1 provided in the embodiments of the present application further comprises a second sealing member 142, which can realize sealing of the second end 112 of the connecting pipe 11. The second sealing member 142 has a first through hole 142a, which can allow the push rod 141 to be partially accommodated in the accommodation cavity 11a and slide in the connecting pipe 11 in the accommodation cavity 11a to drive the pressing pipe 13 to slide in the accommodation cavity 11a.

[0094] Please refer again to Figure 1 , Figure 5 and Figure 6 , and refer to Figure 7 , Figure 7 and Figure 1 , the test connector I part is shown in the enlarged schematic view. Further, in some embodiments, the push rod 141 further comprises a third connecting portion 1412 arranged at an end of the push rod 141 away from the pressing pipe 13. The push-pull assembly 14 further comprises a handle 144, the handle 144 comprises a fourth connecting portion 1441, the fourth connecting portion 1441 is hingedly connected with the third connecting portion 1412, and the handle 144 is used to drive the push rod 141 to slide in the accommodation cavity 11a.

[0095] The push-pull assembly 14 further comprises a handle 144, which comprises a fourth connecting portion 1441. In an alternative embodiment, the handle 144 comprises a grip 1443 and a hinged piece 1444, which is connected to the grip 1443 by bending. The grip 1443 can be, but is not limited to, a corrugated grip 1443. The fourth connecting portion 1441 can be, but is not limited to, arranged at an end of the hinged piece 1444 away from the grip 1443. In an alternative embodiment, the handle 144 comprises two hinged pieces 1444, and the fourth connecting portion 1441 is arranged at an end of each of the two hinged pieces 1444 away from the grip 1443, and the third connecting portion 1412 is clamped between the two fourth connecting portions 1441 and hingedly connected to the two fourth connecting portions 1441. The above is an example of the structure of the handle 144 provided by the embodiment of the present application, and should not be understood as a limitation of the structure of the handle 144 provided by the embodiment of the present application.

[0096] The push rod 141 further comprises a third connecting portion 1412, the handle 144 comprises a fourth connecting portion 1441, and the fourth connecting portion 1441 is hingedly connected to the third connecting portion 1412. Alternatively, the third connecting portion 1412 is a through hole perpendicular to the push rod 141, the fourth connecting portion 1441 is a through hole arranged on the handle 144 corresponding to the third connecting portion 1412, and the test connector 1 further comprises a first hinged shaft 101, which passes through the third connecting portion 1412 and the fourth connecting portion 1441, thereby achieving hinged connection of the push rod 141 and the handle 144. In an alternative embodiment, the handle 144 comprises two fourth connecting portions 1441, and the third connecting portion 1412 is clamped between the two fourth connecting portions 1441, and the first hinged shaft 101 passes through the third connecting portion 1412 and the two fourth connecting portions 1441, thereby achieving hinged connection of the push rod 141 and the handle 144.

[0097] In summary, the test connector 1 provided by the embodiment of the present application, the push-pull assembly 14 further comprises a handle 144, which can be used to control sliding of the push rod 141 along the connecting pipe 11 in the accommodation cavity 11a. The push rod 141 further comprises a third connecting portion 1412, the handle 144 comprises a fourth connecting portion 1441, and the fourth connecting portion 1441 is hingedly connected to the third connecting portion 1412, thereby achieving hinged connection of the handle 144 and the push rod 141.

[0098] Please refer again to Figure 4 , Figure 5 , Figure 6 and Figure 7and refer to Figure 8 wherein, Figure 8 is a bottom perspective view of a test connector according to an embodiment of the present application. Further, in some embodiments, the push-pull assembly 14 further comprises a hinged member 145, which comprises a fifth connecting portion 1451 and a sixth connecting portion 1452. For more details, please refer to Figure 10 The second sealing member 142 comprises a seventh connecting portion 1424, which is arranged at the outer periphery of the second sealing member 142, and the seventh connecting portion 1424 is hingedly connected with the fifth connecting portion 1451. The handle 144 further comprises an eighth connecting portion 1442, which is hingedly connected with the sixth connecting portion 1452.

[0099] The handle 144 further comprises an eighth connecting portion 1442, and the push-pull assembly 14 further comprises a hinged member 145, which comprises a sixth connecting portion 1452. In an alternative embodiment, the handle 144 comprises a grip 1443 and a hinged piece 1444, which is bently connected with the grip 1443, and the eighth connecting portion 1442 is located at the position of the hinged piece 1444 close to the grip 1443; the sixth connecting portion 1452 of the hinged member 145 is located on the side of the eighth connecting portion 1442 of the handle 144 away from the push rod 141, and is hingedly connected with the eighth connecting portion 1442.

[0100] In an alternative embodiment, the handle 144 comprises two eighth connecting portions 1442, and the hinged member 145 comprises a first hinged portion 1453, a second hinged portion 1454 and a connecting bottom portion 1455, and the first hinged portion 1453 and the second hinged portion 1454 are respectively bently connected with the two ends of the connecting bottom portion 1455. Wherein, the hinged member 145 comprises two fifth connecting portions 1451 and two sixth connecting portions 1452, one fifth connecting portion 1451 and one sixth connecting portion 1452 are located at the first hinged piece 1444, and the other fifth connecting portion 1451 and the other sixth connecting portion 1452 are located at the second hinged piece 1444. In an alternative embodiment, the two eighth connecting portions 1442 are respectively connected with the two sixth connecting portions 1452, and the seventh connecting portion 1424 is clamped between the two fifth connecting portions 1451 and is hingedly connected with the two fifth connecting portions 1451. The above is an example of the structure of the hinged member 145 provided by the embodiments of the present application, and should not be understood as a limitation of the structure of the hinged member 145 provided by the embodiments of the present application.

[0101] The seventh connecting part 1424 is hingedly connected with the fifth connecting part 1451. Optionally, the seventh connecting part 1424 is a through hole opened perpendicularly to the first through hole 142a of the second connecting piece 143, the fifth connecting part 1451 is a through hole arranged on the hinge piece 145 corresponding to the seventh connecting part 1424, and the test connector 1 further comprises a second hinge shaft 102, the second hinge shaft 102 passes through the seventh connecting part 1424 and the fifth connecting part 1451, so as to realize the hinged connection between the hinge piece 145 and the second sealing piece 142. In an optional embodiment, the hinge piece 145 comprises two fifth connecting parts 1451, and the seventh connecting part 1424 is clamped between the two fifth connecting parts 1451, the first hinge shaft 101 passes through the seventh connecting part 1424 and the two fifth connecting parts 1451, so as to realize the hinged connection between the hinge piece 145 and the second sealing piece 142. The above is an example of the connection mode of the hinge piece 145 and the second sealing piece 142 provided by the embodiment of the application, and should not be understood as a limitation of the connection mode of the hinge piece 145 and the second sealing piece 142 provided by the embodiment of the application.

[0102] The eighth connecting part 1442 is hingedly connected with the sixth connecting part 1452. Optionally, the eighth connecting part 1442 is a through hole, the fifth connecting part 1451 is a through hole arranged on the hinge piece 145 corresponding to the eighth connecting part 1442, and the test connector 1 further comprises a third hinge shaft 103, the third hinge shaft 103 passes through the eighth connecting part 1442 and the sixth connecting part 1452, so as to realize the hinged connection between the hinge piece 145 and the handle 144. In an optional embodiment, the handle 144 comprises two eighth connecting parts 1442, the hinge piece 145 comprises two sixth connecting parts 1452, the test connector 1 comprises two third hinge shafts 103, the two third hinge shafts 103 pass through the two eighth connecting parts 1442 and the two sixth connecting parts 1452 respectively, so as to realize the hinged connection between the hinge piece 145 and the handle 144. The above is an example of the connection mode of the hinge piece 145 and the handle 144 provided by the embodiment of the application, and should not be understood as a limitation of the connection mode of the hinge piece 145 and the handle 144 provided by the embodiment of the application.

[0103] In summary, the test connector 1 provided by the embodiments of the present application, the push-pull assembly 14 further comprises a hinged piece 145, which can realize the movement of the pressing pipe 13 driven by the handle 144 controlling the push rod 141. The hinged piece 145 comprises a fifth connecting part 1451 and a sixth connecting part 1452, the second sealing piece 142 comprises a seventh connecting part 1424, the handle 144 further comprises an eighth connecting part 1442, the seventh connecting part 1424 and the fifth connecting part 1451 are hingedly connected to realize the hinged connection between the hinged piece 145 and the second sealing piece 142, and the eighth connecting part 1442 and the sixth connecting part 1452 are hingedly connected to realize the hinged connection between the hinged piece 145 and the handle 144.

[0104] Please refer again to Figure 4 and Figure 5 , and refer to Figure 9 , Figure 10 and Figure 11 , Figure 9 is a partial enlarged schematic view of the test connector III part shown in Figure 5 ; Figure 10 is a schematic view of the second sealing piece according to an embodiment of the present application; Figure 11 is a sectional view of the second sealing piece along the line C-C shown in Figure 10 Further, in some embodiments, the second sealing piece 142 comprises a first part 1421, a second part 1422 and a third part 1423. The first part 1421 is accommodated in the accommodation cavity 11a, one end of the second part 1422 is connected to the first part 1421 away from the side of the pressing pipe 13, and the third part 1423 is connected to the other end of the second part 1422; the second part 1422 cooperates with the first part 1421 and the third part 1423 to form a groove 142b. The push-pull assembly 14 further comprises a connecting piece 143, which is fixedly connected to the second end 112, and the connecting piece 143 is sleeved on the outer circumferential side of the second part 1422 and abuts against the first part 1421 and the third part 1423.

[0105] The second sealing member 142 comprises a first part 1421, a second part 1422 and a third part 1423, and the second part 1422 cooperates with the first part 1421 and the third part 1423 to form a groove 142b. In an optional embodiment, the first part 1421 has a first peripheral side 1421a and a first end surface 1421b, and the first end surface 1421b is connected to the first peripheral side 1421a by bending. The first peripheral side 1421a abuts against the inner wall surface of the connecting pipe 11, thereby realizing the connection between the connecting pipe 11 and the first sealing member 12. The second part 1422 has a second peripheral side 1422a, and the second peripheral side 1422a is connected to the first end surface 1421b by bending. The third part 1423 has a second end surface 1423a, and the second end surface 1423a is connected to the second peripheral side 1422a by bending, and the first end surface 1421b and the second end surface 1423a are oppositely arranged. The first end surface 1421b, the second peripheral side 1422a and the second end surface 1423a together define the groove 142b, and the groove 142b is an annular groove in an optional embodiment.

[0106] The push-pull assembly 14 further comprises a connecting member 143, which is sleeved on the outer periphery of the second part 1422 and abuts against the first part 1421 and the third part 1423. In an optional embodiment, the connecting member 143 has a first surface 143a and a second surface 143b oppositely arranged, and the first surface 143a faces the second end 112. The first surface 143a abuts against the surface of the second end 112 facing the push-pull assembly 14 and abuts against the first end surface 1421b, and the second surface 143b abuts against the second end surface 1423a. The above is an example of the structure of the second sealing member 142 and the connecting member 143 provided in the embodiments of the present application, and should not be understood as a limitation of the structure of the second sealing member 142 and the connecting member 143 provided in the embodiments of the present application.

[0107] In summary, the test connector 1 provided in the embodiments of the present application, the second sealing member 142 comprises a first part 1421, a second part 1422 and a third part 1423, and the first part 1421 is accommodated in the accommodation cavity 11a to realize the connection between the second sealing member 142 and the second end 112. The push-pull assembly 14 further comprises a connecting member 143, which is sleeved on the outer periphery of the second part 1422 and abuts against the first part 1421 and the third part 1423, thereby realizing the position limitation of the second sealing member 142.

[0108] Please refer to Figure 6 , Figure 9 , Figure 10 and Figure 11Further, in some embodiments, the test connector 1 further comprises a third sealing member 15, which abuts the second end 112, the connecting member 143 and the first portion 1421 respectively, for sealing the second end 112.

[0109] The test connector 1 comprises a third sealing member 15, which can be but is not limited to a flexible sealing member such as a silica gel sealing ring or a rubber sealing ring. The above is an example of the structure of the third sealing member 15 provided by the embodiments of the present application, and should not be construed as a limitation of the structure of the third sealing member 15 provided by the embodiments of the present application. It can be understood that the third sealing member 15 has a through hole, and the first sealing member 12 will elastically deform when being pressed. In an alternative embodiment, the first portion 1421 passes through the through hole of the third sealing member 15, and the first circumferential surface 1421a of the first portion 1421 elastically abuts the third sealing member 15.

[0110] It can be understood that the second end 112 has a first wall surface 112a facing the accommodation cavity 11a, and a second wall surface 112b facing the connecting member 143. In an alternative embodiment, the second end 112 further has a chamfered surface 112c, one side of the chamfered surface 112c being connected to the first wall surface 112a by bending, and the other side of the chamfered surface 112c being connected to the second wall surface 112b by bending. The first surface 143a of the connecting member 143 abuts the second wall surface 112b, and the first circumferential surface 1421a of the first portion 1421 abuts the first wall surface 112a. The first circumferential surface 1421a, the first surface 143a and the chamfered surface 112c jointly define a receiving cavity, the third sealing member 15 is accommodated in the receiving cavity, and the third sealing member 15 elastically abuts the chamfered surface 112c, the first surface 143a and the first circumferential surface 1421a. The above is an example of the position of the third sealing member 15 provided by the embodiments of the present application, and should not be construed as a limitation of the position of the third sealing member 15 provided by the embodiments of the present application.

[0111] In summary, the test connector 1 provided by the embodiments of the present application further comprises a third sealing member 15, which can realize the sealing of the second end 112 of the connecting pipe 11, enhance the sealing effect of the second end 112 and the second sealing member 142, and thus enhance the accuracy of the air tightness test result of the test connector 1.

[0112] Please refer again to Figure 5 and Figure 6 , and refer to Figure 12 and Figure 13 , Figure 12is Figure 5 is a partial enlarged view of the test connector IV part shown in the figure; Figure 13 is a perspective view of the compression tube according to an embodiment of the application. Further, in some embodiments, the connecting tube 11 further comprises a tube body 113, one end of which is connected to the first end 111 and the other end of which is connected to the second end 112, and the tube body 113 has a second through hole 113a. The compression tube 13 further has a third through hole 13a, which is arranged correspondingly to the second through hole 113a. The test connector 1 further comprises an inflation nozzle 16, which is connected to the connecting tube 11 through the second through hole 113a, and the inflation nozzle 16 is used to connect an inflation device to inflate the receiving cavity 11a to test the air tightness of the sample.

[0113] The connecting tube 11 further comprises a tube body 113, which has a second through hole 113a. Optionally, the second through hole 113a is a circular hole that communicates the receiving cavity 11a with the outside. The compression tube 13 further has a third through hole 13a, which is arranged correspondingly to the second through hole 113a. In some embodiments, the third through hole 13a is arranged in the compression tube main part 131 and communicates the receiving sub-cavity 13b defined by the compression tube main part 131.

[0114] It can be understood that the compression tube 13 can slide along the connecting tube 11 in the receiving cavity 11a to press the first sealing member 12; the connecting tube 11 has a first position and a second position in a direction parallel to the push rod 141, and the compression tube 13 can slide between the first position and the second position. The third through hole 13a can be, but is not limited to, a rectangular through hole or an oblong through hole or an elliptical through hole; when the compression tube 13 is at any position between the first position and the second position, the second through hole 113a corresponds to the third through hole 13a, and the second through hole 113a and the third through hole 13a make the inside of the compression tube 13 communicate with the outside. The above is an example of the structure of the connecting tube 11 and the compression tube 13 provided by the embodiments of the application, and should not be understood as a limitation of the structure of the connecting tube 11 and the compression tube 13 provided by the embodiments of the application.

[0115] The test connector 1 further comprises an inflation nozzle 16 connected with the connecting pipe 11 through the second through hole 113a, for connecting with an inflation device. In an alternative embodiment, the inflation nozzle 16 is partially accommodated in the accommodation cavity 11a and partially extends outside the connecting pipe 11. The inflation nozzle 16 extending outside the connecting pipe 11 has a structure matched with the inflation device, and the inflation nozzle 16 has a fourth through hole 16a communicating the accommodation cavity 11a with the outside.

[0116] In summary, the test connector 1 provided by the embodiments of the present application, the connecting pipe 11 further comprises a pipe body 113 having a second through hole 113a, the pressing pipe 131 further has a third through hole 13a, and the test connector 1 further comprises an inflation nozzle 16. The second through hole 113a and the third through hole 13a can realize the inflating of the accommodation cavity 11a with gas, and the inflation nozzle 16 is used for connecting with an inflation device. When the test connector 1 of the embodiments of the present application tests the air tightness of the measured wire harness, the second through hole 113a, the third through hole 13a and the inflation nozzle 16 can realize the inflating of the measured wire harness to test the air tightness of the measured wire harness.

[0117] Please refer to the sectional structure schematic diagram of the pressing pipe along the line D-D shown in Figure 5 、 Figure 6 、 Figure 12 and Figure 13 , and please refer to Figure 14 , Figure 14 is Figure 13 . Further, in some of the embodiments, the pressing pipe 13 further has a limiting groove 13c arranged towards the inflation nozzle 16, the limiting groove 13c and the inner wall of the connecting pipe 11 together define an inflation sub-cavity 13d, and the third through hole 13a is arranged corresponding to the limiting groove 13c. The inflation nozzle 16 further comprises an inflation part 161 accommodated in the inflation sub-cavity 13d.

[0118] The pressing pipe 13 further has a limiting groove 13c facing the inflating nozzle 16, and the third through hole 13a corresponds to the limiting groove 13c. In an alternative embodiment, the limiting groove 13c is arranged on the main body 131 of the pressing pipe. It can be understood that the pressing pipe 13 further has a first sub-surface 131a, a second sub-surface 131b and a third sub-surface 131c, the first sub-surface 131a is connected to the second sub-surface 131b by bending, the second sub-surface 131b is connected to the third sub-surface 131c by bending, and the first sub-surface 131a and the third sub-surface 131c are arranged oppositely, the first sub-surface 131a, the second sub-surface 131b and the third sub-surface 131c jointly define the limiting groove 13c.

[0119] The second sub-surface 131b faces the inflating nozzle 16, and optionally, the first sub-surface 131a and the second sub-surface 131b are respectively perpendicular or approximately perpendicular to the second sub-surface 131b. In an alternative embodiment, the third through hole 13a penetrates the second sub-surface 131b and the inner wall surface of the pressing pipe 13. The inflating nozzle 16 further includes an inflating part 161, which is accommodated in the inflating sub-cavity 13d. It can be understood that the inflating part 161 has a first distance from the second sub-surface 131b, the first sub-surface 131a has a first height in a direction perpendicular to the second sub-surface 131b, and the third sub-surface 131c has a second height in a direction perpendicular to the second sub-surface 131b, the first distance is less than the first height, and the first distance is less than the third height.

[0120] It can be understood that the connecting pipe 11 has a first position and a second position in a direction parallel to the push rod 141, and the pressing pipe 13 can slide in the accommodating cavity 11a between the first position and the second position to press the first sealing member 12. When the pressing pipe 13 is located at the first position, the first sub-surface 131a of the pressing pipe 13 abuts against the inflating part 161; when the pressing pipe 13 is located at the second position, the second sub-surface 131b of the pressing pipe 13 abuts against the inflating part 161. The above is an example of the structure and position of the pressing pipe 13 and the inflating nozzle 16 provided by the present embodiment, and should not be understood as a limitation of the structure and position of the pressing pipe 13 and the inflating nozzle 16 provided by the present embodiment.

[0121] In summary, the test connector 1 provided by the embodiments of the present application, the pressing pipe 13 further has a limiting groove 13c, and the inflation nozzle 16 further includes an inflation part 161. When the test connector 1 provided by the embodiments of the present application performs the air tightness test on the wire harness under test, the limiting groove 13c can limit the displacement range of the pressing pipe 13, so as to avoid that the first elastic member is damaged due to excessive extrusion of the pressing pipe 13 on the first elastic member, thereby increasing the service life of the first sealing member 12.

[0122] Please refer to Figure 5 , Figure 6 and Figure 12 again. Further, in some of the embodiments, the test connector 1 further includes a first gasket 17 and a second gasket 18. The first gasket 17 is accommodated in the accommodating cavity 11a and arranged between the first sealing member 12 and the first end 111, and abuts against the limiting face 111a. The second gasket 18 is accommodated in the accommodating cavity 11a and arranged between the first sealing member 12 and the pressing pipe 13.

[0123] Optionally, the first gasket 17 and the second gasket 18 are hard gaskets. Specifically, the first gasket 17 and the second gasket 18 can be, but are not limited to, metal gaskets. Specifically, the first gasket 17 has a first inner diameter, and the second gasket 18 has a second inner diameter. In an optional embodiment, the limiting face 111a is an annular wall face, and the annular wall face has a third inner diameter; the first inner diameter is greater than the third inner diameter, and the second inner diameter is greater than the third inner diameter. The above is an example of the structure of the first gasket 17 and the second gasket 18 provided by the embodiments of the present application, and should not be understood as a limitation on the structure of the first gasket 17 and the second gasket 18 provided by the embodiments of the present application.

[0124] In summary, the test connector 1 provided by the embodiments of the present application further includes the first gasket 17 and the second gasket 18. The first gasket 17 and the second gasket 18 make the first sealing member 12 not directly contact the first end 111 and the pressing pipe 13, so as to further make the extrusion force on the first sealing member 12 more balanced, and the effect of increasing the radial dimension of the first sealing member 12 for sealing the accommodating cavity 11a is better. At the same time, the first sealing member 12 is less likely to be damaged due to the small force area, thereby increasing the service life of the first sealing member 12.

[0125] In the present application, the phrase "embodiment" or "embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is explicitly contemplated that the features, structures, or characteristics described in connection with one embodiment can be incorporated into other embodiments. Also, it is understood that the features, structures, or characteristics described in connection with the embodiments can be combined in any manner, without departing from the spirit and scope of the application.

[0126] Finally, it should be noted that the above embodiments are merely used to illustrate, but not to limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application.

Claims

1. A test connector, characterized by, The test connector comprises: a connecting pipe defining a receiving cavity, the connecting pipe comprising a first end and a second end arranged oppositely, the first end having a limiting surface facing the receiving cavity; a first sealing member received in the receiving cavity and limited by the limiting surface; a pressing pipe received in the receiving cavity and arranged close to the first sealing member; and a push-pull assembly connected to the pressing pipe and sealingly connected to the second end, the push-pull assembly being used to drive the pressing pipe to slide in the receiving cavity to extrude the first sealing member so as to increase the radial dimension of the first sealing member.

2. The test connector of claim 1, wherein, The pressing pipe comprises: a pressing pipe body; and a first connecting portion arranged at one end of the pressing pipe body away from the first sealing member; The push-pull assembly comprises: a push rod partially received in the connecting pipe and partially extending out of the connecting pipe from the second end, the push rod comprising a second connecting portion fixedly connected to the first connecting portion, the push rod being used to drive the pressing pipe body to slide in the receiving cavity to extrude the first sealing member.

3. The test connector of claim 2, wherein, The push-pull assembly further comprises: a second sealing member arranged at the second end and partially received in the receiving cavity, the second sealing member having a first through hole through which the push rod passes.

4. The test connector of claim 3, wherein, The push rod further comprises: a third connecting portion arranged at one end of the push rod away from the pressing pipe; The push-pull assembly further comprises: a handle comprising a fourth connecting portion hingedly connected to the third connecting portion, the handle being used to drive the push rod to slide in the receiving cavity.

5. The test connector of claim 4, wherein, The push-pull assembly further comprises: a hinge member comprising a fifth connecting portion and a sixth connecting portion; The second sealing member further comprises: a seventh connecting portion arranged at the outer periphery of the second sealing member, the seventh connecting portion being hingedly connected to the fifth connecting portion; The handle further comprises: an eighth connecting portion hingedly connected to the sixth connecting portion.

6. The test connector of claim 5, wherein, The second sealing member comprises: a first portion received in the receiving cavity; a second portion having one end connected to the side of the first portion away from the pressing pipe; and a third portion connected to the other end of the second portion, the second portion cooperating with the first portion and the third portion to form a groove; The push-pull assembly further comprises: a connecting member fixedly connected to the second end, the connecting member being sleeved on the outer periphery of the second portion and abutting against the first portion and the third portion.

7. The test connector of claim 6, wherein, The test connector further comprises: a third sealing member abutting against the second end, the connecting member and the first portion respectively, and being used to seal the second end.

8. The test connector of any one of claims 1-7, wherein, The connecting pipe further comprises: a pipe body having one end connected to the first end and the other end connected to the second end, and the pipe body having a second through hole; The pressing pipe further has: a third through hole corresponding to the second through hole; The test connector further comprises: An inflation nozzle is connected with the connecting pipe through the second through hole, and is used for connecting an inflation device to inflate the accommodation cavity to test the air tightness of the sample.

9. The test connector of claim 8, wherein, The pressing pipe further has: A limiting groove is arranged towards the inflation nozzle, and cooperates with the inner wall of the connecting pipe to define an inflation sub-cavity, and the third through hole is arranged corresponding to the limiting groove; The inflation nozzle further includes: An inflation part is accommodated in the inflation sub-cavity.

10. The test connector of claim 9, wherein, The test connector further includes: A first gasket is accommodated in the accommodation cavity, arranged between the first sealing member and the first end, and abuts against the limiting face; and A second gasket is accommodated in the accommodation cavity, arranged between the first sealing member and the pressing pipe.

Images