A positioning shell for the branch port of a wire harness

Abstract

The present invention discloses a positioning shell for the branch port of a wire harness, which comprises a limiting sleeve and an anti-loosening member. The limiting sleeve is in the shape of a multi-pass tube with a plurality of interconnected branch channels and is formed by inserting and splicing two semi-shell pieces. The anti-loosening member is annular and is formed by inserting and splicing two semi-circular bodies. A plurality of the anti-loosening members are respectively sleeved outside each branch channel. The splicing seams of the two semi-shell pieces of the limiting sleeve are staggered from the splicing seams of the two semi-circular bodies of each anti-loosening member, so as to perform movable limiting on each branch wire harness at the branch of the wire harness body, effectively avoiding the damage of the vulcanized rubber outer skin or the braided protective sleeve caused by its free movement.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harnesses, and in particular to the technical field of a positioning shell for a branch port of a wire harness.

Background Art

[0002] The engine wire harness is the nerve transmission system of the engine, and its function is to transmit or exchange the power supply or data signal of the electrical system. With the gradual improvement of people's requirements for the power performance, economy and emission performance of the engine, the engine electronic control system has become more and more complex, and the complexity of the engine wire harness has also increased accordingly.

[0003] The protective shell is a component for protecting the wire harness body of the engine wire harness. However, there is a large gap between the existing protective shell and the wires, which causes the wires to easily collide and rub against each other due to vibration or other reasons, thereby causing the failure of the engine wire harness and even posing a safety hazard. For this reason, the applicant has proposed an engine wire harness with an integrated rubber protective sleeve with a publication number of CN209675561U, which can effectively avoid the wear of the wire insulation layer by directly wrapping and vulcanizing the rubber outer skin outside the wire harness body using a mold, and the special-shaped processing is very simple. However, during the actual use process, the applicant found that the vulcanized rubber outer skin at the branch of the wire harness body is prone to cracks after being affected by bending and other effects for a long time. In addition, some manufacturers also choose to directly braid a protective sleeve outside the wire harness body to protect the wire harness body. However, due to the limitations of the braiding method, the braided protective sleeve at the branch of the wire harness body is also prone to the problem of unthreading after being affected by bending and other effects for a long time.

Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, and propose a positioning shell for a branch port of a wire harness, which can perform movable limit on each branch wire harness at the branch of the wire harness body, and effectively avoid the damage of the vulcanized rubber outer skin or the braided protective sleeve caused by its free movement.

[0005] To achieve the above purpose, the present invention proposes a positioning shell for a branch port of a wire harness, including a limit sleeve and an anti-loosening member. The limit sleeve is a multi-pass tubular shape with a plurality of interconnected branch channels and is formed by plugging and splicing two semi-shell pieces. The anti-loosening member is in a ring shape and is formed by plugging and splicing two semi-ring bodies. A plurality of the anti-loosening members are respectively sleeved outside each branch channel, and the splicing seam of the two semi-shell pieces of the limit sleeve is staggered from the splicing seam of the two semi-ring bodies of each anti-loosening member.

[0006] Preferably, a plurality of strip-shaped grooves are respectively provided at the edges of the adjacent surfaces of the two semi-shell pieces, and rubber strips are respectively embedded in each strip-shaped groove.

[0007] Preferably, the limiting sleeve further includes bumps and reed pieces. A plurality of the bumps are respectively arranged around the outer walls of the respective branch channels, and a plurality of the reed pieces are respectively fixedly inclined on the respective bumps. One ends of the reed pieces arranged around the same branch channel respectively extend outside the half-shell piece and are close to each other.

[0008] Preferably, the middle parts of the respective reed pieces are respectively rotatably connected to the bumps. The respective anti-loosening members are respectively threadedly connected outside the respective branch channels. Convex edges are respectively arranged on one sides of the two semi-circular bodies of the respective anti-loosening members close to the bumps outside the respective branch channels. When the respective anti-loosening members rotate along the respective branch channels, the convex edges can gradually be stuck into the gaps between the respective reed pieces outside the respective branch channels and the half-shell piece.

[0009] Preferably, a curled edge portion is arranged at at least one end of each of the reed pieces, and the curled edge portion is wound towards the side away from the central axis of the respective branch channel.

[0010] Preferably, the outer diameter of the convex edge gradually increases from the end away from the semi-circular body to the end close to the semi-circular body.

[0011] Preferably, a foaming filler is further filled between the adjacent surfaces of the two half-shell pieces.

[0012] Preferably, mesh-shaped convex lines are respectively arranged at the adjacent surfaces of the two half-shell pieces.

[0013] Advantages of the present invention:

[0014] The present invention splices two half-shell pieces together to form a multi-way pipe with several interconnected branch channels, which can actively limit each branch wire harness at the branch of the wire harness body, effectively preventing the vulcanized rubber outer skin or braided protective sleeve from being damaged due to free movement, further ensuring the normal operation of each wire in the engine. In addition, by splicing two half-ring bodies together to form a ring outside each branch channel respectively, and staggering the splicing seams of the two half-shell pieces of the limit sleeve from the splicing seams of the two half-ring bodies of each anti-loosening part, it effectively prevents the two half-shell pieces of the limit sleeve from separating; by respectively arranging several convex blocks around the outer wall of each branch channel, and obliquely fixing spring pieces on each convex block, the end of the spring piece extending outside the half-shell can be used to clamp the branch wire harness, thereby limiting the orientation of each branch wire harness. And because the spring piece has elasticity, when each branch wire harness is suddenly bent, it can also give it a certain degree of freedom of movement to avoid it being directly broken; by threadedly connecting the anti-loosening part with the limit sleeve and arranging a convex edge on the half-ring body, the depth of the convex edge extending into the gap between the spring piece and the half-shell can be adjusted by rotation, thereby adjusting the inclination angle of the spring piece and realizing the adjustment of the freedom of movement of each branch wire harness; by filling foaming filler between the adjacent surfaces of the two half-shell pieces, the protection of the branch of the wire harness body can be further strengthened.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an assembly schematic diagram of a branch port positioning shell of a wire harness of the present invention;

[0017] Figure 2 is a front view of a branch port positioning shell of a wire harness of the present invention;

[0018] Figure 3 is a front view of the limit sleeve of a branch port positioning shell of a wire harness of the present invention when disassembled;

[0019] Figure 4 is a front view of the anti-loosening part of a branch port positioning shell of a wire harness of the present invention when disassembled.

[0020] In the figure: 1 - limit sleeve, 11 - half-shell piece, 111 - strip-shaped groove, 112 - reticulated convex pattern, 12 - rubber strip, 13 - convex block, 14 - spring piece, 141 - curled edge part, 2 - anti-loosening part, 21 - half-ring body, 211 - convex edge.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Refer to Figures 1 to 4, a positioning shell for the branch port of a wire harness according to the present invention includes a limiting sleeve 1 and a loosening prevention member 2. The limiting sleeve 1 is a multi-pass tubular shape with a number of interconnected branch channels and is formed by splicing two semi-shell pieces 11. The loosening prevention member 2 is in a ring shape and is formed by splicing two semi-circular bodies 21. A number of the loosening prevention members 2 are respectively sleeved outside each branch channel, and the splicing seam of the two semi-shell pieces 11 of the limiting sleeve 1 is staggered from the splicing seam of the two semi-circular bodies 21 of each loosening prevention member 2.

[0022] At the edges of the adjacent surfaces of the two semi-shell pieces 11, a number of strip-shaped grooves 111 are respectively provided, and rubber strips 12 are respectively fitted in each of the strip-shaped grooves 111.

[0023] The limiting sleeve 1 further includes bumps 13 and reed pieces 14. A number of the bumps 13 are respectively arranged around the outer walls of each branch channel, and a number of the reed pieces 14 are respectively fixed obliquely on each bump 13. One ends of the reed pieces 14 arranged around the same branch channel respectively extend outside the semi-shell piece 11 and are close to each other.

[0024] The middle parts of each of the reed pieces 14 are respectively rotatably connected to the bumps 13. Each of the loosening prevention members 2 is respectively threadedly connected outside each branch channel. On one side of each of the two semi-circular bodies 21 of each loosening prevention member 2 close to the bump 13 outside the corresponding branch channel, a convex edge 211 is provided. When each of the loosening prevention members 2 rotates along the corresponding branch channel, the convex edge 211 can gradually be stuck into the gap between each of the reed pieces 14 outside the corresponding branch channel and the semi-shell piece 11.

[0025] At least one end of each of the reed pieces 14 is provided with a curled edge portion 141, and the curled edge portion 141 is wound towards the side away from the central axis of the corresponding branch channel.

[0026] The outer diameter of the convex edge 211 gradually increases from the end away from the semi-circular body 21 to the end close to the semi-circular body 21.

[0027] Foaming filler is also filled between the adjacent surfaces of the two semi-shell pieces 11.

[0028] Mesh-shaped convex patterns 112 are also respectively provided at the adjacent surfaces of the two semi-shell pieces 11.

[0029] The working process of the present invention:

[0030] First, at each branch of the wire harness body, two half shell pieces 11 are inserted and spliced together to form a multi-pass tubular limiting sleeve 1. Subsequently, outside each branch channel of the limiting sleeve 1, two half ring bodies 21 are inserted and spliced together to form an annular anti-loosening member 2, and at the same time, the splicing seam of the two half shell pieces 11 of the limiting sleeve 1 is staggered from the splicing seam of the two half ring bodies 21 of each anti-loosening member 2. Then, as required, each anti-loosening member 2 is rotated along the corresponding branch channel, so that the convex edge 211 is gradually caught in the gap between each leaf spring 14 outside the corresponding branch channel and the half shell piece 11, thereby forcing the end of each leaf spring 14 extending outside the half shell piece 11 to gradually press the branch wire harness of the wire harness body. In addition, before installing the anti-loosening member, foaming filler can also be injected between the limiting sleeve 1 and the wire harness body.

[0031] In the present invention, by inserting and splicing two half shell pieces to form a multi-pass tube with several mutually connected branch channels, the movement of each branch wire harness of the wire harness body can be limited at the branch, effectively avoiding the damage of the vulcanized rubber outer skin or the braided protective sleeve caused by its free movement, further ensuring the normal operation of each wire in the engine. In addition, by inserting and splicing two half ring bodies outside each branch channel to form a ring, and at the same time staggering the splicing seam of the two half shell pieces of the limiting sleeve from the splicing seam of the two half ring bodies of each anti-loosening member, the separation of the two half shell pieces of the limiting sleeve is effectively avoided; by respectively arranging a plurality of convex blocks around the outer wall of each branch channel and obliquely fixing leaf springs on each convex block, the end of the leaf spring extending outside the half shell piece can be used to clamp the branch wire harness, thereby limiting the orientation of each branch wire harness, and since the leaf spring has elasticity, when each branch wire harness is suddenly bent, a certain degree of freedom of movement can also be given to it to avoid it being directly broken; by threadedly connecting the anti-loosening member with the limiting sleeve and arranging a convex edge on the half ring body, the depth of the convex edge extending into the gap between the leaf spring and the half shell piece can be adjusted by rotation, thereby adjusting the inclination angle of the leaf spring and realizing the adjustment of the movement freedom of each branch wire harness; by filling foaming filler between the adjacent surfaces of the two half shell pieces, the protection of the branch of the wire harness body can be further strengthened.

[0032] The above embodiments are illustrative of the present invention, not limiting the present invention. Any scheme obtained by simply transforming the present invention belongs to the protection scope of the present invention.

Claims

1. A branch port positioning shell of a wiring harness, Features: The invention comprises a limit sleeve (1) and an anti-loosening member (2), wherein the limit sleeve (1) is in the shape of a multi-channel tube with a plurality of interconnected branch channels and is formed by plugging and splicing two half-shell sheets (11), the anti-loosening member (2) is in the shape of an annulus and is formed by plugging and splicing two half-circle bodies (21), a plurality of the anti-loosening members (2) are respectively sleeved outside each branch channel, the splicing seams of the two half-shell sheets (11) of the limit sleeve (1) are staggered with the splicing seams of the two half-circle bodies (21) of each anti-loosening member (2), the limit sleeve (1) further comprises a protrusion (13) and a spring leaf (14), a plurality of the protrusions (13) are respectively arranged around the outer wall of each branch channel, and a plurality of the spring leaves (14) are respectively inclined. One end of each spring leaf (14) fixed on each protrusion (13) and arranged around the same branch channel protrudes out of the half-shell (11) and approaches each other, and the middle of each spring leaf (14) is rotatably connected to the protrusion (13). Each anti-loosening member (2) is threadedly connected outside each branch channel. Two half-circles (21) of each anti-loosening member (2) are provided with a convex edge (211) on one side of the protrusion (13) outside the branch channel. When each anti-loosening member (2) rotates along the branch channel, the convex edge (211) can be gradually inserted into the gap between each spring leaf (14) outside the branch channel and the half-shell (11).

2. A branch port positioning shell of a wiring harness as claimed in claim 1, Features: A plurality of strip-shaped grooves (111) are respectively provided at the edges of adjacent surfaces of the two half-shell sheets (11), and a rubber strip (12) is respectively embedded in each of the strip-shaped grooves (111).

3. A branch port positioning housing of a wiring harness as claimed in claim 1, Features: At least one end of each of the reed leaves (14) is provided with a curling portion (141), and the curling portion (141) is curled toward a side away from the central axis of the branch channel where it is located.

4. A branch port positioning housing for a wiring harness as claimed in claim 1, Features: The outer diameter of the convex edge (211) gradually increases from an end away from the semi-circular body (21) to an end close to the semi-circular body (21).

5. A branch port positioning shell of a wiring harness according to any one of claims 1 to 4, Features: The adjacent surfaces of the two half-shell sheets (11) are also filled with foam filler.

6. A branch port positioning housing for a wiring harness as claimed in claim 5, Features: The adjacent surfaces of the two half-shell sheets (11) are also respectively provided with mesh convex patterns (112).

Images