Positionable clamping automobile firewall wire harness sheath

Abstract

The utility model relates to the technical field of wiring harness sheath, especially to an automobile firewall wiring harness sheath capable of positioning and clamping, the utility model discloses the reasonable structure design, it is mainly by the middle sleeve, end sleeve and inner support spring constitute, the both ends of middle sleeve are connected with end sleeve through the threaded connection mode, and the adjustment of wiring harness sheath overall axial length can be realized through the screwing of end sleeve, and the wear -resisting performance of wiring harness sheath overall can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness sheath technology, and in particular to a positioning and locking automotive firewall wire harness sheath. Background Technology

[0002] A firewall is the name of a component in a car. In a car, the firewall separates passengers from the engine so that if the engine catches fire, the firewall not only protects the passengers but also allows the driver to retain control of the engine. If the firewall is damaged, the separation between passengers and the engine is lost, potentially harming passengers and causing the driver to lose control of the engine. The firewall is a fire-resistant material inside and outside the front bulkhead. During prolonged driving, the car engine inevitably generates high temperatures, which can easily lead to spontaneous combustion and other safety hazards for passengers. The firewall greatly increases the safety of both passengers and the driver. However, current firewall wiring harness covers generally lack a positioning and clamping structure, making them inconvenient for quick installation and removal, and failing to protect the wiring harness while improving fire resistance.

[0003] To this end, the patent specification with publication number CN220009685U discloses a positioning and locking automotive firewall wiring harness sheath, including a fireproof metal plate and an inlet pipe movably installed on the left side of the fireproof metal plate; a protective cylinder is fixedly installed on the outer wall of the inlet pipe, and evenly distributed limiting posts are fixedly installed on the outer wall of the protective cylinder; a symmetrical protective sleeve is movably installed on the outer wall of the protective cylinder; a fireproof block is fixedly installed on the inner wall of the protective sleeve; a first groove is fixedly opened on the inner wall of the fireproof block; the outer wall of the limiting post is adapted to the inner wall of the first groove; and symmetrical fixing rings are movably installed at the left and right ends of the protective sleeve.

[0004] The aforementioned automotive firewall wiring harness sleeve has several shortcomings in use. First, its axial length cannot be adjusted to meet the installation requirements of firewalls of different thicknesses. Second, it lacks internal support components, resulting in insufficient pressure resistance. Therefore, optimization and improvement are necessary. Summary of the Invention

[0005] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a positioning and locking automotive firewall wiring harness sheath.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A positioning and clamping automotive firewall wiring harness sheath includes an intermediate sleeve, end sleeves and an inner support spring. The two ends of the intermediate sleeve are threadedly connected to the two ends, and the two end sleeves together clamp an inner support spring that can provide internal support for the intermediate sleeve. The intermediate sleeve includes a first tube section, and the inner wall of the first tube section is provided with internal thread grooves near both ends. The end sleeve includes a second tube section and a third tube section that are connected as one piece. The second tube section is threaded with several clamping screws in the circumferential direction. The inner end of the clamping screws is restricted to move in the positioning pressure plate. The outer side of the third tube section is provided with an external thread that mates with the internal thread groove.

[0007] Furthermore, in the aforementioned positioning and locking automotive firewall wiring harness sheath, the axial length of the first tube is greater than twice the axial length of the third tube.

[0008] Furthermore, in the aforementioned positioning and clamping automotive firewall wiring harness sheath, the outer diameter of the second tube is equal to the outer diameter of the first tube, the outer diameter of the second tube is greater than the outer diameter of the third tube, and a stepped groove is provided inside the second tube, with the narrow part of the stepped groove located on the inner side and the diameter of the narrow part being equal to the inner diameter of the third tube.

[0009] Furthermore, in the aforementioned positioning and locking automotive firewall wiring harness sheath, end rings are provided at both ends of the inner support spring, and an annular positioning groove that mates with the end ring is provided on the outer end face of the third tube, and the cross-section of the annular positioning groove is semi-circular.

[0010] Furthermore, in the aforementioned positioning and locking automotive firewall wiring harness sheath, the first tube, the second tube, and the third tube are all made of engineering plastic materials.

[0011] Furthermore, in the aforementioned positioning and locking automotive firewall wiring harness sheath, the inner support spring is made of carbon steel.

[0012] The beneficial effects of this utility model are: This utility model has a reasonable structural design, mainly consisting of an intermediate sleeve, end sleeves, and an inner support spring. Firstly, the two ends of the intermediate sleeve are connected to the end sleeves via threaded connections. The axial length of the entire wire harness sheath can be adjusted by screwing in the end sleeves, meeting the installation requirements of automotive firewalls of different thicknesses. Secondly, the two end sleeves together clamp the inner support spring, which provides internal support for the intermediate sleeve, improving the overall compressive strength of the wire harness sheath. Simultaneously, the end sleeves utilize clamping screws and positioning plates to position and press the wire harness, preventing friction between the wire harness and the inner support spring.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a half-sectional schematic diagram of the entire utility model; Figure 3 This is a schematic diagram of the structure of the intermediate sleeve in this utility model; Figure 4 This is a schematic diagram showing the position of the inner support spring in this utility model; Figure 5 This is a structural schematic diagram of the middle sleeve of this utility model at one angle; Figure 6 This is a schematic diagram of the structure of the middle sleeve of this utility model from another angle; In the attached diagram, the components represented by each number are as follows: 1-Intermediate sleeve, 101-First tube section, 102-Internal thread groove, 2-End sleeve, 201-Second tube section, 202-Third tube section, 203-Clamping screw, 204-Positioning pressure plate, 205-External thread, 206-Annular positioning groove, 3-Internal support spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-6 As shown, this embodiment provides a positioning and clamping automotive firewall wiring harness sleeve, including an intermediate sleeve 1, end sleeves 2 and an inner support spring 3. The two sides of the intermediate sleeve 1 are threadedly connected to the end sleeves 2, and the two end sleeves 2 together clamp the inner support spring 3, which can provide internal support for the intermediate sleeve 1.

[0018] In this embodiment, the intermediate sleeve 1 includes a first tube portion 101, and the inner wall of the first tube portion 101 is provided with internal thread grooves 102 near both ends.

[0019] In this embodiment, the end sleeve 2 includes a second tube section 201 and a third tube section 202 that are connected as one piece. The second tube section 201 is threaded with a plurality of clamping screws 203 through it in the circumferential direction. The inner end of the clamping screws 203 is restricted to move in the positioning pressure plate 204. The outer side of the third tube section 202 is provided with an external thread 205 that mates with the internal thread groove 102.

[0020] In this embodiment, the axial length of the first tube 101 is greater than twice the axial length of the third tube 202.

[0021] In this embodiment, the outer diameter of the second tube 201 is equal to the outer diameter of the first tube 101, the outer diameter of the second tube 201 is greater than the outer diameter of the third tube 202, and a stepped groove is provided inside the second tube 201. The narrow part of the stepped groove is located on the inner side and the diameter of the narrow part is equal to the inner diameter of the third tube 202.

[0022] In this embodiment, the inner support spring 3 has end rings at both ends, and the outer end face of the third tube 202 has an annular positioning groove 206 that cooperates with the end rings. The cross-section of the annular positioning groove 206 is semi-circular.

[0023] In this embodiment, the first tube 101, the second tube 201, and the third tube 202 are all made of engineering plastic materials.

[0024] In this embodiment, the inner support spring 3 is made of carbon steel.

[0025] A specific application of this embodiment is as follows: This wire harness sheath mainly consists of an intermediate sleeve 1, end sleeves 2, and an inner support spring 3. The two ends of the intermediate sleeve 1 are connected to the end sleeves 2 by threaded connections. By screwing in the end sleeves 2, the overall axial length of the wire harness sheath can be adjusted to meet the installation requirements of automotive firewalls of different thicknesses. The two end sleeves 2 are used to clamp the inner support spring 3 together, which provides internal support for the intermediate sleeve 1 and improves the overall compressive strength of the wire harness sheath. At the same time, the end sleeves 2 can be used to position and press the wire harness using clamping screws 203 and positioning pressure plates 204, so that the wire harness will not rub against the inner support spring 3.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning and locking automotive firewall wiring harness sheath, characterized in that, It includes an intermediate sleeve, end sleeves and an inner support spring. The two ends of the intermediate sleeve are threaded to the two ends, and the two end sleeves together hold an inner support spring that can provide internal support for the intermediate sleeve. The intermediate sleeve includes a first tube section, and the inner wall of the first tube section is provided with internal thread grooves near both ends. The end sleeve includes a second tube section and a third tube section that are connected as one piece. The second tube section is threaded with several clamping screws in the circumferential direction. The inner end of the clamping screws is restricted to move in the positioning pressure plate. The outer side of the third tube section is provided with an external thread that mates with the internal thread groove.

2. The automotive firewall wiring harness sheath that can be positioned and locked according to claim 1, characterized in that, The axial length of the first tube is greater than twice the axial length of the third tube.

3. The automotive firewall wiring harness sheath that can be positioned and locked according to claim 1, characterized in that, The outer diameter of the second tube is equal to the outer diameter of the first tube, and the outer diameter of the second tube is greater than the outer diameter of the third tube. A stepped groove is provided inside the second tube, and the narrow part of the stepped groove is located on the inner side and the diameter of the narrow part is equal to the inner diameter of the third tube.

4. The automotive firewall wiring harness sheath that can be positioned and locked according to claim 1, characterized in that, The inner support spring has end rings at both ends, and the outer end face of the third tube has an annular positioning groove that mates with the end rings. The cross-section of the annular positioning groove is semi-circular.

5. A positioning and locking automotive firewall wiring harness sheath according to claim 1, characterized in that, The first, second, and third tube sections are all made of engineering plastic materials.

6. A positioning and locking automotive firewall wiring harness sheath according to claim 1, characterized in that, The inner support spring is made of carbon steel.

Images