Positioning and sealing plug-in structure and automobile wire harness

Abstract

The utility model provides a positioning and sealing plug-in structure and an automobile wire harness. The positioning and sealing plug-in structure comprises a shell assembly, a cover body assembly and a locking assembly, the shell assembly comprises a plug-in shell and a positioning block which are connected, and the positioning block is provided with two positioning grooves; the cover body assembly comprises a connecting rod connected to the plugging shell, and a sealing cover and an elastic piece which are respectively sleeved on the connecting rod; two abutting ends of the elastic piece are arranged in the two positioning grooves in a penetrating manner; the locking assembly comprises a tightening piece, a sealing ring and a locking piece, the tightening piece is connected to the plugging shell and is provided with a mounting groove, one end of the tightening piece is further provided with a plurality of locking grooves which are arranged at intervals and communicate with the mounting groove, the sealing ring is installed in the mounting groove and is provided with a protruding piece, and the tightening piece is sleeved with the locking piece. The positioning block protects the abutting end, collision deformation of the abutting end is avoided, and the durability of the elastic piece is improved; when the locking piece locks the tightening piece, the tightening piece extrudes the sealing ring to deform and fix the connecting line, and the sealing performance of the locking assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile extension cables, in particular to a positioning sealing plug-in structure and an automobile wiring harness. Background Art

[0002] Modern cars are filled with various electronic devices that form a huge distributed system. The signals generated by the on-board computer must be transmitted through the car wiring harness. The car wiring harness needs to shield the corrosion of water vapor and the influence of the complex electrical environment in the car. Therefore, when connecting the car wiring harnesses, it is also necessary to connect them through a special connecting wire connector. The connecting wire connector includes a sealing cover, a mounting shell and a connecting rod connected to the mounting shell. The sealing cover is rotatably connected to the connecting rod, and one end of the elastic member abuts against the sealing cover, so that the sealing cover is set on the mounting shell, and the other abutting end of the elastic member abuts against the mounting shell.

[0003] When the abutting end of the elastic member is exposed in the mounting shell, it is easily hit during use, which causes the abutting end of the elastic member to deform, resulting in a shortened service life of the elastic member. When the connecting wire is installed in the mounting shell, one end of the mounting shell is connected to a locking member, which contracts and locks the connecting wire after being tightened. When the connection between the connecting wire and the locking member is not tight enough, moisture will penetrate into the mounting shell through the gap at the connection and corrode the connecting wire. When the connection strength between the connecting wire and the connecting wire connector is not high, the connecting wire is easily pulled out of the mounting shell, such as the technical solution disclosed in the comparative document CN201621431266.2. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a positioning sealing plug-in structure and an automobile wiring harness with durable elastic parts and good sealing performance for fixing connecting wires.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A positioning sealing plug-in structure, comprising:

[0007] A housing assembly, the housing assembly comprising a positioning block and a plug housing, the plug housing having a first wire-passing channel, an outer wall of the plug housing having a connecting hole, the positioning block connected to the outer wall of the plug housing, the positioning block having a positioning groove, and the number of the connecting hole and the positioning groove is two;

[0008] A cover assembly, the cover assembly comprising a sealing cover, a connecting rod and an elastic member, the two ends of the connecting rod are respectively connected to the two connecting holes, the sealing cover is rotatably connected to the connecting rod and covers the plug-in housing, the main body of the elastic member is sleeved on the connecting rod and abuts against the sealing cover, the elastic member is also convexly provided with an abutting end, the number of the abutting ends is two, and the two abutting ends are respectively penetrated through the two positioning grooves;

[0009] A locking assembly, the locking assembly includes a tightening piece, a sealing ring and a locking piece, the tightening piece is connected to the plug-in housing, a second wire-passing channel and an installation groove which are connected in sequence are opened in the tightening piece, the second wire-passing channel is connected to the first wire-passing channel, the tightening end of the tightening piece which is away from the plug-in housing is also provided with a locking groove which is connected to the installation groove, the number of the locking grooves is multiple, and the multiple locking grooves are arranged at intervals along the circumference of the installation groove, the sealing ring is installed in the installation groove, the sealing ring is provided with a third wire-passing channel, the third wire-passing channel is connected to the second wire-passing channel, the sealing ring is convexly provided with a protrusion, and the locking piece is sleeved on the tightening piece.

[0010] In one embodiment, the abutment end includes a first abutment member and a second abutment member, the diameter of the first abutment member is larger than the diameter of the second abutment member, the two ends of the first abutment member are respectively connected to the elastic member and the second abutment member, the positioning groove includes a first limiting groove and a second limiting groove that are connected, the width of the first limiting groove is larger than the width of the second limiting groove, the first abutment member is embedded in the first limiting groove, and the second abutment member is embedded in the second limiting groove.

[0011] In one embodiment, there are multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the third wire-passing channel.

[0012] In one embodiment, the plug-in shell includes a mounting shell, a silicone component and a shell bottom connector, the sealing cover is covered on one end of the mounting shell, the silicone component is sleeved on the connecting end of the shell bottom connector, the connecting end of the shell bottom connector is connected to the other end of the mounting shell, and the tightening component is connected to the end of the shell bottom connector facing away from the mounting shell.

[0013] In one of the embodiments, the shell bottom connector is provided with a positioning groove, and the plug-in shell further includes a positioning protrusion, the positioning protrusion is connected to the silicone member, and the positioning protrusion is correspondingly embedded in the positioning groove.

[0014] In one embodiment, there are multiple positioning grooves and multiple positioning protrusions.

[0015] In one of the embodiments, the surface of the shell bottom connecting piece is also provided with an anti-slip groove.

[0016] In one of the embodiments, the plug-in housing further includes a mounting platform, and the mounting platform is connected to the outer peripheral wall of the mounting shell.

[0017] In one of the embodiments, the housing assembly further includes two connecting columns, and the two connecting columns are connected to the outer peripheral wall of the plug-in housing.

[0018] An automobile wiring harness comprises the positioning sealing plug-in structure described in any one of the above embodiments.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] 1. In the above-mentioned positioning sealing plug-in structure and automobile wiring harness, when the two abutting ends are inserted into the two positioning grooves, the two positioning grooves fix the position of the elastic member, and the positioning block protects the two abutting ends, reduces the deformation of the two abutting ends caused by collision, and thus improves the durability of the elastic member;

[0021] 2. When installing the connecting wire, the locking piece locks the tightening piece along the thread, so that the tightening end of the tightening piece shrinks and squeezes the sealing ring to deform, and the protruding piece of the sealing ring squeezes and fixes the connecting wire, thereby reducing the gap between the connecting wire and the sealing ring, preventing water vapor from entering the third wire passing channel, improving the sealing performance of the locking assembly and the tensile strength of the connecting wire, and thereby increasing the service life of the positioning sealing plug-in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a structural schematic diagram of a positioning sealing plug-in structure of an embodiment;

[0024] Figure 2 for Figure 1 An exploded view of the positioning seal plug structure shown;

[0025] Figure 3 for Figure 1 Another exploded view of the positioning sealing plug structure shown;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the locking assembly shown;

[0027] Figure 5 for Figure 4 A cross-sectional view along line AA of the locking assembly is shown. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] In order to better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below in conjunction with specific embodiments:

[0032] like Figure 1 and Figure 2 As shown, a positioning and sealing plug-in structure 10 of an embodiment includes a shell assembly 100, a cover assembly 200 and a locking assembly 300. The shell assembly 100 includes a positioning block 110 and a plug-in shell 120. A first wire-passing channel 1201 is provided in the plug-in shell 120. A circuit structure is provided in the first wire-passing channel 1201, and a connecting wire can be installed on the circuit structure. A connecting hole 1202 is provided on the outer wall of the plug-in shell 120. The positioning block 110 is connected to the outer wall of the plug-in shell 120. The positioning block 110 is provided with a positioning groove 1101. The number of the connecting hole 1202 and the positioning groove 1101 is two.

[0033] like Figures 1 to 5As shown, further, the cover assembly 200 includes a sealing cover 210, a connecting rod 220 and an elastic member 230. The two ends of the connecting rod 220 are respectively connected to the two connecting holes 1202. The sealing cover 210 is rotatably connected to the connecting rod 220 and is covered on the plug-in housing 120. The main body of the elastic member 230 is sleeved on the connecting rod 220 and abuts against the sealing cover 210. After the sealing cover 210 rotates on the connecting rod 220, the sealing cover 210 drives the elastic member 230 The elastic member 230 is also provided with two abutting ends 231, which are respectively penetrated into the two positioning grooves 1101. The positioning grooves 1101 restrict the movement of the two abutting ends 231, so that the elastic member 230 body connected with the two abutting ends 231 remains fixed when the force is applied; the locking assembly 300 includes a tightening member 310, a sealing ring 320 and a locking member 330, and the tightening member 310 is provided with a sealing ring 320 and a locking member 330. 10 is connected to the plug housing 120, and a second wire-passing channel 3101 and a mounting groove 3102 which are connected in sequence are opened in the tightening member 310, and the second wire-passing channel 3101 is connected to the first wire-passing channel 1201. The tightening end of the tightening member 310 which is away from the plug housing 120 is also opened with a locking groove 3103 which is connected to the mounting groove 3102. There are multiple locking grooves 3103, and the multiple locking grooves 3103 are arranged at intervals along the circumference of the mounting groove 3102. The locking groove 3103 creates a gap at one end of the tightening piece 310. When the locking end of the tightening piece 310 is subjected to force, the locking groove 3103 contracts, causing the mounting groove 3102 to contract. The sealing ring 320 is installed in the mounting groove 3102. The sealing ring 320 is provided with a third wire passing channel 3201, and the third wire passing channel 3201 is connected to the second wire passing channel 3101. The sealing ring 320 is provided with a protruding piece 321, and the locking piece 330 is sleeved on the tightening piece 310.

[0034] In the present embodiment, when the sealing cover 210 is opened for plugging, the two abutting ends 231 of the elastic member 230 are installed in the two positioning grooves 1101, and the two abutting ends 231 are limited in the two positioning grooves 1101, so that the positions of the two abutting ends 231 are fixed and collision is avoided during use; when the positioning sealing plug-in structure 10 needs to install the connecting wire, the connecting wire passes through the locking member 330, the sealing ring 320, the tightening member 310 and the plug-in housing 120 in sequence, and then is connected to the electrical wire in the first wire passage 1201. In terms of the road structure, tighten the tightening piece 310 and the plug-in housing 120, the locking piece 330 and the tightening piece 310 are threadedly connected, the sealing ring 320 is installed in the installation groove 3102, and then the locking piece 330 is tightened with the tightening piece 310. As the locking piece 330 squeezes the tightening end of the tightening piece 310, the tightening end shrinks and squeezes the sealing ring 320 to deform and compress the connecting line. The protruding piece 321 squeezes the connecting line, so that the connecting line is fixed and the gap between the connecting line and the sealing ring 320 becomes smaller, and finally the tightening end is sealed with glue.

[0035] The above-mentioned positioning sealing plug-in structure 10, when the two abutting ends 231 are inserted into the two positioning grooves 1101, the two positioning grooves 1101 fix the position of the elastic member 230, and the positioning block 110 protects the two abutting ends 231 embedded in the positioning grooves 1101, thereby reducing the deformation of the two abutting ends 231 caused by collision, thereby improving the durability of the elastic member 230; when installing the connecting line, the locking member 330 locks the tightening member 310 along the thread, so that the tightening end of the tightening member 310 shrinks and squeezes the sealing ring 320 to deform, and the protruding member 321 of the sealing ring 320 squeezes and fixes the connecting line, so that the connecting line is fixed and the gap between the connecting line and the sealing ring 320 is reduced, preventing water vapor from entering the third wire passing channel 3201, thereby improving the sealing performance of the positioning sealing plug-in structure 10 and the tensile strength of the connecting line, thereby increasing the service life of the positioning sealing plug-in structure 10.

[0036] like Figure 2 As shown, in one embodiment, the abutment end 231 includes a first abutment member 2311 and a second abutment member 2312, the diameter of the first abutment member 2311 is greater than the diameter of the second abutment member 2312, the two ends of the first abutment member 2311 are respectively connected to the elastic member 230 and the second abutment member 2312, the positioning groove 1101 includes a first limiting groove 1102 and a second limiting groove 1103 connected to each other, the width of the first limiting groove 1102 is greater than the width of the second limiting groove 1103, the first abutment member 2311 is embedded in the first limiting groove 1102, and the second abutment member 2312 is embedded in the second limiting groove 1103. In this embodiment, the positioning groove 1101 forms a first limiting groove 1102 and a second limiting groove 1103 whose widths decrease successively. When the first abutment 2311 and the second abutment 2312 are respectively adapted to be embedded in the first limiting groove 1102 and the second limiting groove 1103, the connection between the first abutment 2311 and the second abutment 2312 and the first limiting groove 1102 and the second limiting groove 1103 is tighter, so that the first abutment 2311 and the second abutment 2312 are not easy to fall out of the first limiting groove 1102 and the second limiting groove 1103, thereby keeping the position of the elastic member 230 connected to the first abutment 2311 fixed.

[0037] like Figure 1 As shown, in one embodiment, the number of the protrusions 321 is multiple, and the multiple protrusions 321 are arranged at intervals along the circumference of the third wire passage 3201. In this embodiment, there are multiple wire cores in the connecting wire, so that the cross section of the connecting wire is irregular. As the locking member 330 tightens the tightening member 310, one end of the tightening member 310 shrinks, and the multiple protrusions 321 can clamp and fix the connecting wire from different angles at the same time, so that the connection strength between the connecting wire with an irregular cross section and the positioning sealing plug-in structure 10 is improved.

[0038] like Figure 3 As shown, in one embodiment, the plug housing 120 includes a mounting shell 121, a silicone member 122 and a shell bottom connector 123, a sealing cover 210 is covered on one end of the mounting shell 121, the silicone member 122 is sleeved on the connection end of the shell bottom connector 123, the connection end of the shell bottom connector 123 is connected to the other end of the mounting shell 121, and a tightening member 310 is connected to one end of the shell bottom connector 123 away from the mounting shell 121. In this embodiment, when the connecting wire is installed, the space inside the mounting shell 121 and the shell bottom connector 123 is relatively large, which is convenient for the operator to connect one end of the multi-strand connecting wire to the circuit structure, and the silicone member 122 prevents moisture from penetrating into the mounting shell 121 from the connection point, thereby increasing the sealing between the mounting shell 121 and the shell bottom connector 123.

[0039] like Figure 3 As shown, in one embodiment, the mounting shell 121 is provided with a positioning groove 1203, and the plug-in housing 120 further includes a positioning protrusion 124, the positioning protrusion 124 is connected to the silicone member 122, and the positioning protrusion 124 is correspondingly embedded in the positioning groove 1203. In this embodiment, the positioning protrusion 124 connected to the silicone member 122 is embedded in the positioning groove 1203, so that the silicone member 122 is placed at the connection end of the shell bottom connection member 123 and fixed, which is convenient for operators to disassemble and assemble.

[0040] like Figure 3 As shown, in one embodiment, there are multiple positioning grooves 1203 and positioning protrusions 124. In this embodiment, multiple positioning protrusions 124 can simultaneously position the silicone member 122, so that the silicone member 122 remains fixed, thereby facilitating the disassembly and assembly work of the operator.

[0041] like Figure 3 As shown, in one embodiment, the surface of the shell bottom connector 123 is further provided with an anti-skid groove 1204. In this embodiment, the anti-skid groove 1204 can facilitate the operator to hold the shell bottom connector 123, so that the operator can easily unscrew the installation shell 121 and the shell bottom connector 123.

[0042] like Figure 2 As shown, in one embodiment, the plug housing 120 further includes a mounting platform 125, and the mounting platform 125 is connected to the outer peripheral wall of the mounting shell 121. In this embodiment, the mounting platform 125 is provided with two fixing holes, so that the mounting platform 125 can be installed in the car through the fixing holes, so that the positioning sealing plug structure 10 is fixed inside the car.

[0043] like Figure 1As shown, in one embodiment, the housing assembly 100 further includes two connecting posts 130, and the two connecting posts 130 are connected to the outer peripheral wall of the plugged housing 120. In this embodiment, the two connecting posts 130 are convenient for the operator to hold, so that the operator can more easily exert force to hold the plugged housing 120, thereby opening the sealing cover 210 for plugging operation.

[0044] The present application also provides an automobile wiring harness, including the positioning sealing plug structure 10 in any of the above embodiments. In this embodiment, the positioning sealing plug structure 10 reduces the contact of the connecting wires in the automobile wiring harness with moisture, and makes the elastic member 230 of the cover assembly 200 highly durable, thereby improving the service life of the automobile wiring harness.

[0045] Compared with the prior art, the utility model has at least the following advantages:

[0046] 1. In the above-mentioned positioning sealing plug-in structure 10 and automobile wiring harness, when the two abutting ends 231 are inserted into the two positioning grooves 1101, the two positioning grooves 1101 fix the position of the elastic member 230, and the positioning block 110 protects the two abutting ends 231 embedded in the positioning grooves 1101, thereby reducing the deformation of the two abutting ends 231 caused by collision, thereby improving the durability of the elastic member 230;

[0047] 2. When installing the connecting wire, the locking piece 330 locks the tightening piece 310 along the thread, so that the tightening end of the tightening piece 310 shrinks and squeezes the sealing ring 320 to deform, and the protrusion 321 of the sealing ring 320 squeezes and fixes the connecting wire, so that the connecting wire is fixed and the gap between the connecting wire and the sealing ring 320 is reduced, preventing water vapor from entering the third wire passing channel 3201, thereby improving the sealing performance of the positioning sealing plug-in structure 10 and the tensile strength of the connecting wire, thereby increasing the service life of the positioning sealing plug-in structure 10.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A positioning sealing plug-in structure, characterized in that: include: A housing assembly, the housing assembly comprising a positioning block and a plug housing, the plug housing having a first wire-passing channel, an outer wall of the plug housing having a connecting hole, the positioning block connected to the outer wall of the plug housing, the positioning block having a positioning groove, and the number of the connecting hole and the positioning groove is two; A cover assembly, the cover assembly comprising a sealing cover, a connecting rod and an elastic member, the two ends of the connecting rod are respectively connected to the two connecting holes, the sealing cover is rotatably connected to the connecting rod and covers the plug-in housing, the main body of the elastic member is sleeved on the connecting rod and abuts against the sealing cover, the elastic member is also convexly provided with an abutting end, the number of the abutting ends is two, and the two abutting ends are respectively penetrated through the two positioning grooves; A locking assembly, the locking assembly includes a tightening piece, a sealing ring and a locking piece, the tightening piece is connected to the plug-in housing, a second wire-passing channel and an installation groove which are connected in sequence are opened in the tightening piece, the second wire-passing channel is connected to the first wire-passing channel, the tightening end of the tightening piece which is away from the plug-in housing is also provided with a locking groove which is connected to the installation groove, the number of the locking grooves is multiple, and the multiple locking grooves are arranged at intervals along the circumference of the installation groove, the sealing ring is installed in the installation groove, the sealing ring is provided with a third wire-passing channel, the third wire-passing channel is connected to the second wire-passing channel, the sealing ring is convexly provided with a protrusion, and the locking piece is sleeved on the tightening piece.

2. The positioning sealing plug-in structure according to claim 1, characterized in that: The abutting end includes a first abutting member and a second abutting member, the diameter of the first abutting member is larger than the diameter of the second abutting member, the two ends of the first abutting member are respectively connected to the elastic member and the second abutting member, the positioning groove includes a first limiting groove and a second limiting groove that are connected, the width of the first limiting groove is larger than the width of the second limiting groove, the first abutting member is embedded in the first limiting groove, and the second abutting member is embedded in the second limiting groove.

3. The positioning sealing plug-in structure according to claim 1, characterized in that: There are multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the third wire-passing channel.

4. The positioning sealing plug-in structure according to claim 1, characterized in that: The plug-in shell includes a mounting shell, a silicone component and a shell bottom connector, the sealing cover is covered on one end of the mounting shell, the silicone component is sleeved on the connecting end of the shell bottom connector, the connecting end of the shell bottom connector is connected to the other end of the mounting shell, and the tightening component is connected to one end of the shell bottom connector facing away from the mounting shell.

5. The positioning sealing plug-in structure according to claim 4, characterized in that: The shell bottom connector is provided with a positioning groove, and the plug-in shell further comprises a positioning protrusion, the positioning protrusion is connected to the silicone member, and the positioning protrusion is correspondingly embedded in the positioning groove.

6. The positioning sealing plug-in structure according to claim 5, characterized in that: The number of the positioning grooves and the number of the positioning protrusions are multiple.

7. The positioning sealing plug-in structure according to claim 4, characterized in that: The surface of the shell bottom connecting piece is also provided with an anti-slip groove.

8. The positioning sealing plug-in structure according to claim 4, characterized in that: The plug-in housing further comprises a mounting platform, and the mounting platform is connected to the outer peripheral wall of the mounting shell.

9. The positioning sealing plug-in structure according to claim 1, characterized in that: The housing assembly further comprises two connecting posts, and the two connecting posts are connected to the outer peripheral wall of the plug-in housing.

10. An automotive wiring harness, characterized in that: The invention comprises the positioning sealing plug-in structure as described in any one of claims 1 to 9.

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