Automobile wiring harness protective cover

Abstract

The present invention relates to the technical field of wire harness protective covers, and in particular to an automobile wire harness protective cover, comprising a protective cover straight tube and a protective cover bent tube, wherein the outer walls of the protective cover straight tube and the protective cover bent tube are respectively fixedly connected with a first fixing ring and a second fixing ring on one side close to each other, and a quick assembly mechanism, a sealing mechanism and a pop-up mechanism are respectively arranged between the first fixing ring and the second fixing ring; the quick assembly mechanism comprises an annular mounting groove opened at one end of the first fixing ring, mounting holes are penetrated on four sides of the outer wall of the annular mounting groove, and limiting columns are arranged on the inner walls of the four mounting holes, and also comprises a mounting ring fixedly connected to one end of the second fixing ring, and limiting grooves adapted to the limiting columns are opened on four sides of the outer wall of the mounting ring; the present invention ensures the connection effect of the protective cover under vibration conditions, and prevents moisture from entering the inside of the protective cover, thereby protecting the internal wiring harness.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness protective covers, in particular to an automobile wire harness protective cover. Background Art

[0002] The automotive wiring harness protective cover is a tubular or wrapped device, usually made of flexible materials such as plastic, rubber or high-temperature resistant materials. Its main purpose is to provide physical protection for the wires and cables inside the car to prevent them from mechanical damage, chemical corrosion, high temperature, humidity and other external environmental factors. When it is necessary to bend 90 degrees, in order to prevent the straight protective cover from being damaged by long-term bending, a 90-degree curved protective cover is required. Therefore, a connector is needed to connect the curved protective cover and the straight protective cover.

[0003] At present, the connection structure in the prior art uses threaded fitting for connection, and the threaded fitting connection structure will cause the threads to loosen under the long-term use and vibration of the car, so that the connected nut will gradually detach, and finally cause the separation of the connection structure, thereby affecting the connection effect of the protective cover, and when the threaded fitting is used for connection, a sealing gasket needs to be placed inside, and when the nut is loose, the sealing gasket cannot play a waterproof role, thereby affecting the sealing effect of the connection structure, causing water to enter the inside of the protective cover from the connection, which will make the insulation layer of the wiring harness inside the protective cover more easily broken down, thereby causing short circuits or fires. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an automobile wiring harness protective cover.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an automobile wiring harness protective cover, comprising a protective cover straight tube and a protective cover bent tube, wherein the outer walls of the protective cover straight tube and the protective cover bent tube are respectively fixedly connected with a first fixing ring and a second fixing ring on one side close to each other, and a quick assembly mechanism, a sealing mechanism and a pop-up mechanism are respectively arranged between the first fixing ring and the second fixing ring;

[0006] The quick assembly mechanism includes an annular mounting groove provided at one end of the first fixing ring, mounting holes are provided on four sides of the outer wall of the annular mounting groove, and limiting columns are provided on the inner walls of the four mounting holes, and also includes a mounting ring fixedly connected to one end of the second fixing ring, limiting grooves adapted to the limiting columns are provided on four sides of the outer wall of the mounting ring, and the limiting columns are clamped in the limiting grooves for limiting and fixing the mounting ring, thereby realizing a quick docking connection between the first fixing ring and the second fixing ring;

[0007] The sealing mechanism includes a first annular groove opened on the outer side of the mounting ring corresponding to one end of the second fixing ring, and also includes a second annular groove opened on the outer side of the annular mounting groove corresponding to one end of the first fixing ring, annular air bags are arranged on the inner walls of the first annular groove and the second annular groove, piston grooves are penetrated at the four corners of one end of the inner side of the first annular groove, and first piston columns are arranged on the inner walls of the four piston grooves, and the four first piston columns squeeze the annular air bags at the same time, and make the inner wall and outer wall of the annular air bags fully contact the two annular walls in the first annular groove and the second annular groove.

[0008] Preferably, the quick assembly mechanism includes sliding grooves opened on both sides of the mounting hole, the inner walls of the four groups of sliding grooves are slidably connected with sliders, the four groups of sliders and the sliding grooves are fixedly connected with a first spring, and the four groups of sliders are fixedly connected to the limiting columns.

[0009] Preferably, the quick assembly mechanism includes a rotating ring arranged on the first fixed ring, grooves are provided at positions corresponding to the mounting holes on four sides of the inner wall of the rotating ring, sliding grooves are symmetrically provided on the inner walls of the four grooves, fixed columns are provided on the inner walls of the four groups of sliding grooves, square columns are fixedly connected between the four groups of fixed columns, and the four square columns are fixedly connected to the limiting columns.

[0010] Preferably, an arc groove is opened on one side of the outer wall of the first fixed ring corresponding to the mounting hole, the inner walls of the four arc grooves are slidably connected with arc blocks, a second spring is fixedly connected between the four groups of arc blocks and the arc grooves, and the four arc blocks are fixedly connected to the rotating ring.

[0011] Preferably, a retaining ring is symmetrically fixedly connected to the inner wall of the rotating ring, and two annular retaining grooves matching the shape of the retaining ring are formed on the outer wall of the first fixed ring, and the retaining ring rotates in the annular retaining grooves.

[0012] Preferably, the sealing mechanism further comprises a positioning column fixedly connected to the outer side of the first annular groove corresponding to one end of the first fixing ring, the number of the positioning columns is four and the diameters are different, and the other ends of the four positioning columns are fixedly connected to push columns.

[0013] Preferably, the sealing mechanism also includes a positioning groove opened at one end of the second fixing ring corresponding to the outer side of the second annular groove, the number of the positioning grooves is set to four and is adapted to the shape of the positioning column, the four positioning grooves are all connected to the piston groove, a second piston column is arranged on the inner wall of the piston groove near the positioning groove, hydraulic oil is arranged between the second piston column, the first piston column and the piston groove, the second piston column moves and squeezes the hydraulic oil in the piston groove, thereby moving the first piston column.

[0014] Preferably, the pop-up mechanism includes a pop-up groove opened between the corresponding positioning grooves at one end of the second fixing ring, and the number of the pop-up grooves is set to four. The inner walls of the four pop-up grooves are slidably connected with pop-up columns, and a third spring is fixedly connected between the four groups of pop-up columns and the pop-up grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the cooperation of the rotating ring and the groove in the quick assembly mechanism, and the cooperation of the positioning column and the positioning groove in the sealing mechanism, the straight tube of the protective cover and the bent tube of the protective cover can be quickly assembled and docked, and after docking, the separation of the connection structure can be avoided under vibration, thereby ensuring the connection effect of the straight tube of the protective cover and the bent tube of the protective cover;

[0017] 2. The retaining ring and the annular retaining groove in the quick assembly mechanism can prevent moisture from entering between the rotating ring and the first fixed ring, thereby avoiding corrosion to the internal structure, thereby achieving a protective effect and extending the service life of the internal structure.

[0018] 3. Through the sealing mechanism, the annular airbag can fully contact the two annular walls of the first annular groove and the second annular groove during assembly and docking, so as to block water from the outside, prevent water from entering the protective cover from the gap of docking, and avoid water from contacting the wiring harness in the protective cover, thereby preventing the insulation layer of the wiring harness from being damaged, and further preventing short circuit or fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an automobile wiring harness protective cover of the present invention;

[0020] Figure 2 This is a schematic diagram of the disassembly of an automobile wiring harness protective cover of the present invention;

[0021] Figure 3 A schematic diagram of another perspective of disassembling an automobile wiring harness protective cover of the present invention;

[0022] Figure 4 A vertical cross-sectional view of a first fixing ring of an automobile wiring harness protective cover of the present invention;

[0023] Figure 5 A kind of automobile wiring harness protective cover of the present invention Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 A side vertical cross-sectional view of a first fixed ring and a rotating ring of an automobile wiring harness protective cover of the present invention;

[0025] Figure 7 A side vertical sectional view of a second fixing ring of an automobile wiring harness protective cover of the present invention;

[0026] Figure 8 Another side vertical section view of the second fixing ring of the automotive wiring harness protective cover of the present invention;

[0027] Fig. 9 A kind of automobile wiring harness protective cover of the present invention Figure 8 Enlarged view of point B in the middle.

[0028] In the figure: 1. straight tube of protective sleeve; 2. curved tube of protective sleeve; 3. first fixing ring; 4. second fixing ring; 5. annular mounting groove; 6. mounting hole; 7. limiting column; 8. mounting ring; 9. limiting groove; 10. first annular groove; 11. second annular groove; 12. annular airbag; 13. piston groove; 14. first piston column; 15. sliding groove; 16. sliding block; 17. first spring; 18. rotating ring; 19. groove; 20. sliding groove; 21. fixing column; 22. square column; 23. arc groove; 24. arc block; 25. second spring; 26. retaining ring; 27. annular retaining groove; 28. positioning column; 29. ​​pushing column; 30. positioning groove; 31. second piston column; 32. pop-up groove; 33. pop-up column; 34. third spring. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1 - Fig. 9 The automotive wiring harness protective cover shown comprises a protective cover straight tube 1 and a protective cover bent tube 2. The outer walls of the protective cover straight tube 1 and the protective cover bent tube 2 are respectively fixedly connected with a first fixing ring 3 and a second fixing ring 4 on one side close to each other. A quick assembly mechanism, a sealing mechanism and a pop-up mechanism are respectively provided between the first fixing ring 3 and the second fixing ring 4. The quick assembly mechanism can be used to quickly complete the assembly and docking of the protective cover straight tube 1 and the protective cover bent tube 2, which is convenient and quick. The sealing mechanism can ensure the sealing of the connection to prevent water from entering the protective cover from the docking. The pop-up mechanism can enable the first fixing ring 3 and the second fixing ring 4 to quickly complete the separation operation, so that the protective cover straight tube 1 and the protective cover bent tube 2 are quickly separated.

[0031] like Figure 2 - Figure 7As shown, the quick assembly mechanism includes an annular mounting groove 5 provided at one end of the first fixing ring 3, mounting holes 6 are provided on four sides of the outer wall of the annular mounting groove 5, and limiting columns 7 are provided on the inner walls of the four mounting holes 6. It also includes a mounting ring 8 fixedly connected to one end of the second fixing ring 4, and limiting grooves 9 adapted to the limiting columns 7 are provided on four sides of the outer wall of the mounting ring 8. The limiting columns 7 are clamped in the limiting grooves 9 to limit and fix the mounting ring 8, thereby realizing the quick docking connection between the first fixing ring 3 and the second fixing ring 4;

[0032] like Figure 2 - Figure 3 , Figure 6 - Fig. 9 As shown, the sealing mechanism includes a first annular groove 10 opened on the outer side of the mounting ring 8 corresponding to one end of the second fixing ring 4, and also includes a second annular groove 11 opened on the outer side of the annular mounting groove 5 corresponding to one end of the first fixing ring 3. Annular air bags 12 are arranged on the inner walls of the first annular groove 10 and the second annular groove 11. Piston grooves 13 are penetrated at four corners of one end of the inner side of the first annular groove 10. First piston rods 14 are arranged on the inner walls of the four piston grooves 13. The four first piston rods 14 squeeze the annular air bags 12 at the same time, and make the inner and outer walls of the annular air bags 12 fully contact the two annular walls in the first annular groove 10 and the second annular groove 11.

[0033] like Figure 5 As shown, the quick assembly mechanism includes slide grooves 15 opened on both sides of the mounting hole 6, the inner walls of the four groups of slide grooves 15 are slidably connected with sliders 16, the four groups of sliders 16 and the slide grooves 15 are fixedly connected with first springs 17, and the four groups of sliders 16 are fixedly connected to the limiting columns 7. Through the elastic action of the first springs 17, the limiting columns 7 can be synchronously moved inward so that they are stuck in the limiting grooves 9, thereby completing the installation and fixation of the first fixing ring 3 and the second fixing ring 4.

[0034] like Figure 4 , Figure 5 As shown, the quick assembly mechanism includes a rotating ring 18 arranged on the first fixed ring 3, and grooves 19 are provided at the positions of the mounting holes 6 on the four sides of the inner wall of the rotating ring 18, and sliding grooves 20 are symmetrically provided on the inner walls of the four grooves 19, and fixed columns 21 are provided on the inner walls of the four groups of sliding grooves 20, and square columns 22 are fixedly connected between the four groups of fixing columns 21, and the four square columns 22 are fixedly connected to the limiting columns 7, and the shape of the groove 19 is similar to that of the sliding groove 20. Therefore, when the rotating ring 18 rotates, the fixed column 21 slides in the sliding groove 20, and when the fixed column 21 reaches the sliding groove 20 at a higher position, it can move outward synchronously with the square column 22, thereby moving outward synchronously with the limiting column 7, so it can move synchronously during assembly and docking, which is convenient and quick, and improves the assembly and docking speed, thereby improving the docking efficiency.

[0035] like Figure 4 As shown, an arc groove 23 is provided on one side of the outer wall of the first fixed ring 3 corresponding to the mounting hole 6, and an arc block 24 is slidably connected to the inner walls of the four arc grooves 23. A second spring 25 is fixedly connected between the four groups of arc blocks 24 and the arc grooves 23, and the four arc blocks 24 are fixedly connected to the rotating ring 18. The elastic action of the second spring 25 always gives a force to the arc block 24, so that the arc block 24 is pushed to move to the other side, thereby always giving a thrust to the rotating ring 18 for limiting the rotating ring 18, thereby avoiding the influence of vibration generated during the driving of the car on the rotating ring 18.

[0036] like Figure 6 As shown, a retaining ring 26 is symmetrically fixedly connected to the inner wall of the rotating ring 18, and two annular retaining grooves 27 that are adapted to the shape of the retaining ring 26 are provided on the outer wall of the first fixed ring 3. The retaining ring 26 rotates in the annular retaining groove 27. The cooperation between the retaining ring 26 and the annular retaining groove 27 can prevent moisture from entering between the rotating ring 18 and the first fixed ring 3, preventing corrosion to the internal structure, thereby extending the service life.

[0037] like Figure 2 As shown, the sealing mechanism also includes a positioning column 28 fixedly connected to the outer side of the first annular groove 10 at one end of the first fixing ring 3. There are four positioning columns 28 with different diameters. A push column 29 is fixedly connected to the other end of the four positioning columns 28. Since the diameters of the positioning columns 28 are different, the docking position can be guaranteed, so that the positions of the limit column 7 and the limit groove 9 correspond to each other, thereby facilitating quick assembly and docking.

[0038] like Figure 3 , Figure 8 , Fig. 9 As shown, the sealing mechanism also includes a positioning groove 30 opened at one end of the second fixing ring 4 corresponding to the outer side of the second annular groove 11. There are four positioning grooves 30 and they are adapted to the shape of the positioning column 28. The four positioning grooves 30 are all connected to the piston groove 13. A second piston column 31 is provided on the inner wall of the piston groove 13 near the positioning groove 30. Hydraulic oil is provided between the second piston column 31, the first piston column 14 and the piston groove 13. The second piston column 31 moves and squeezes the hydraulic oil in the piston groove 13, thereby moving the first piston column 14. When the positioning column 28 is inserted into the positioning groove 30, the push column 29 pushes the second piston column 31 to move and squeezes the hydraulic oil, thereby pushing the first piston column 14 to move and squeeze the annular airbag 12, thereby ensuring the sealing effect.

[0039] like Figure 3 , Figure 7As shown, the pop-up mechanism includes a pop-up slot 32 opened between the corresponding positioning slots 30 at one end of the second fixing ring 4, and there are four pop-up slots 32. The inner walls of the four pop-up slots 32 are slidably connected with pop-up columns 33, and a third spring 34 is fixedly connected between the four groups of pop-up columns 33 and the pop-up slots 32. When the first fixing ring 3 and the second fixing ring 4 are separated, the elastic reset action of the third spring 34 can push the pop-up column 33 to move outward, so that the first fixing ring 3 and the second fixing ring 4 can be quickly separated.

[0040] Working principle: by quickly assembling and docking the straight tube 1 of the protective sleeve and the curved tube 2 of the protective sleeve, first rotate the rotating ring 18 to make it rotate in one direction, and move the arc block 24 and squeeze the second spring 25. At the same time, the fixed column 21 slides in the sliding groove 20. When the fixed column 21 enters the sliding groove 20 at the other end, it begins to move outward with the square column 22, thereby moving the limiting column 7 outward. At this time, the limiting column 7 moves outward with the slider 16 and squeezes the first spring 17, and the limiting column 7 is accommodated in the mounting hole 6. At this time, the mounting ring 8 is inserted into the annular mounting groove 5. The position of the limiting groove 9 and the limiting column 7 can be made corresponding to each other through the cooperation of the positioning column 28 and the positioning groove 30. At this time, the rotating ring 18 is released. Under the elastic reset action of the second spring 25 and the first spring 17, the limiting column 7 is inserted into the limiting groove 9, completing the limiting fixation of the mounting ring 8, and can avoid the separation of the connection structure under vibration, thereby ensuring the connection effect.

[0041] During docking, the push rod 29 will squeeze the second piston rod 31, thereby squeezing the hydraulic oil in the piston groove 13 and squeezing the first piston rod 14, so that it squeezes the annular airbag 12. At this time, the annular airbag 12 will be in close contact with the two annular walls of the first annular groove 10 and the second annular groove 11, thereby improving the sealing effect, preventing moisture from entering the inside of the protective sleeve straight tube 1 and the protective sleeve bent tube 2, and ensuring the safety of the internal wiring harness of the protective sleeve straight tube 1 and the protective sleeve bent tube 2;

[0042] When separation is required, the rotating ring 18 is rotated again and with the cooperation of multiple structures, the limit column 7 and the limit groove 9 are separated. At this time, the pop-up column 33 can be quickly popped out under the elastic action of the third spring 34, thereby generating a thrust to quickly separate the first fixing ring 3 and the second fixing ring 4, thereby separating the protective cover straight tube 1 and the protective cover bent tube 2, and completing the separation operation.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automobile wiring harness protective cover, comprising a protective cover straight tube (1) and a protective cover bent tube (2), characterized in that: A first fixing ring (3) and a second fixing ring (4) are respectively fixedly connected on the outer walls of the protective sleeve straight tube (1) and the protective sleeve curved tube (2) at one side close to each other, and a quick assembly mechanism, a sealing mechanism and a pop-up mechanism are respectively provided between the first fixing ring (3) and the second fixing ring (4); The quick assembly mechanism comprises an annular mounting groove (5) provided at one end of the first fixing ring (3), mounting holes (6) are provided on four sides of the outer wall of the annular mounting groove (5), and limiting columns (7) are provided on the inner walls of the four mounting holes (6). The quick assembly mechanism also comprises a mounting ring (8) fixedly connected to one end of the second fixing ring (4), limiting grooves (9) adapted to the limiting columns (7) are provided on four sides of the outer wall of the mounting ring (8), and the limiting columns (7) are clamped in the limiting grooves (9) for limiting and fixing the mounting ring (8), thereby realizing quick docking connection between the first fixing ring (3) and the second fixing ring (4); The sealing mechanism comprises a first annular groove (10) formed on the outer side of the mounting ring (8) corresponding to one end of the second fixing ring (4), and a second annular groove (11) formed on the outer side of the annular mounting groove (5) corresponding to one end of the first fixing ring (3), annular air bags (12) being arranged on the inner walls of the first annular groove (10) and the second annular groove (11), piston grooves (13) being arranged at four corners of one inner end of the first annular groove (10), and first piston rods (14) being arranged on the inner walls of the four piston grooves (13), and the four first piston rods (14) simultaneously squeeze the annular air bags (12) and make the inner and outer walls of the annular air bags (12) fully contact the two annular walls in the first annular groove (10) and the second annular groove (11); The sealing mechanism further comprises a positioning column (28) fixedly connected to the outer side of the first annular groove (10) corresponding to one end of the first fixing ring (3), wherein the number of the positioning columns (28) is four and the diameters are different, and the other ends of the four positioning columns (28) are fixedly connected to a push column (29); The sealing mechanism further comprises a positioning groove (30) formed at one end of the second fixing ring (4) and corresponding to the outer side of the second annular groove (11); the number of the positioning grooves (30) is four and matches the shape of the positioning column (28); the four positioning grooves (30) are all connected to the piston groove (13); a second piston column (31) is provided on the inner wall of the piston groove (13) near the positioning groove (30); hydraulic oil is provided between the second piston column (31), the first piston column (14) and the piston groove (13); the second piston column (31) moves and squeezes the hydraulic oil in the piston groove (13), thereby moving the first piston column (14).

2. The automotive wiring harness protective cover according to claim 1, characterized in that: The quick assembly mechanism comprises slide grooves (15) provided on both sides of the mounting hole (6), the inner walls of the four groups of slide grooves (15) are slidably connected with sliders (16), the four groups of sliders (16) and the slide grooves (15) are fixedly connected with first springs (17), and the four groups of sliders (16) are fixedly connected with the limiting columns (7).

3. The automotive wiring harness protective cover according to claim 2, characterized in that: The quick assembly mechanism comprises a rotating ring (18) arranged on the first fixed ring (3), grooves (19) are provided at positions corresponding to the mounting holes (6) on four sides of the inner wall of the rotating ring (18), sliding grooves (20) are symmetrically provided on the inner walls of the four grooves (19), fixing columns (21) are provided on the inner walls of the four groups of sliding grooves (20), square columns (22) are fixedly connected between the four groups of fixing columns (21), and the four square columns (22) are fixedly connected to the limiting columns (7).

4. The automotive wiring harness protective cover according to claim 3, characterized in that: An arc-shaped groove (23) is provided on one side of the outer wall of the first fixed ring (3) corresponding to the mounting hole (6); the inner walls of the four arc-shaped grooves (23) are slidably connected with arc-shaped blocks (24); a second spring (25) is fixedly connected between the four groups of the arc-shaped blocks (24) and the arc-shaped grooves (23); and the four arc-shaped blocks (24) are fixedly connected to the rotating ring (18).

5. The automotive wiring harness protective cover according to claim 4, characterized in that: A retaining ring (26) is symmetrically fixedly connected to the inner wall of the rotating ring (18), and two annular retaining grooves (27) matching the shape of the retaining ring (26) are formed on the outer wall of the first fixed ring (3), and the retaining ring (26) rotates in the annular retaining grooves (27).

6. The automotive wiring harness protective cover according to claim 1, characterized in that: The ejection mechanism comprises an ejection slot (32) provided between the corresponding positioning slots (30) at one end of the second fixing ring (4), the number of the ejection slots (32) being four, the inner walls of the four ejection slots (32) being slidably connected with ejection columns (33), and a third spring (34) being fixedly connected between the four groups of the ejection columns (33) and the ejection slots (32).

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