Wire harness pipeline protection device for telescopic draw bar

Abstract

The utility model discloses a wiring harness pipeline protection device for a telescopic draw bar, and relates to the technical field of centrally-mounted axle trailers. Comprising a fixing groove, a traction box and a protection groove. The front end of the protection groove is connected with the traction box, and the tail end of the protection groove is connected with the drag chain. By means of the structure of the draw bar, wiring harnesses such as circuits and air pipelines are arranged in the draw bar, and the circuits and the air pipelines are effectively protected through the design of the protection grooves. In the telescopic movement process of the traction rod, relative sliding and friction do not exist between the wire harness pipeline and the traction rod through the protection groove. And a flexible structure is designed at the tail end of the wire harness protection groove, so that the wire harness pipeline is bent and flexibly deformed within a telescopic movement range. The protection groove can be connected with the traction rod in a hanging mode, and installation and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of midshaft trailer, especially relates to a wire harness pipeline protection device for telescopic drawbar. BACKGROUND

[0002] With the compliance of domestic midshaft vehicle for road transportation, the telescopic function drawbar midshaft vehicle is more and more popular and more widely used, but the circuit, air pipe of midshaft trailer is rubbed with the drawbar support in the telescopic process, the existing product structure cannot effectively protect the circuit, air pipe of midshaft trailer or the protection mode is complex, therefore how to improve on the basis of the existing drawbar, effectively implement the protection of circuit, air pipe is the technical problem that the case urgently needs to solve. CONTENT OF UTILITY MODEL

[0003] The utility model provides a compact structure, improve circuit, air pipe protection for telescopic drawbar's wire harness pipeline protection device on the basis of the existing drawbar.

[0004] The utility model discloses a technical scheme:

[0005] The wire harness pipeline protection device for telescopic drawbar, including:

[0006] The fixed groove is detachable fixedly arranged at the bottom of the bottom plate and is in U-shaped structure;

[0007] The traction box is slidably arranged in the fixed groove, and the front end is located outside the fixed groove;

[0008] The protection groove is slidably arranged in the fixed groove, and the front end is detachably connected with the tail end of the drawbar;The pipeline passing through the wire hole successively passes through the drawbar and the protection groove and then enters the bottom plate through the drag chain;The front end of the protection groove is provided with a fixedly connected positioning plate;The positioning plate is in L-shaped structure and includes a vertical plate and a horizontal plate;The vertical plate is fixed at the front end of the protection groove and is provided with an observation port;The horizontal plate is connected with the drawbar and is provided with a connecting hole.

[0009] Specifically, the front end of the drawbar is provided with a detachable fixedly connected traction hook.

[0010] Specifically, the tail of the protection groove is provided with a fixedly connected drag chain fixing plate.

[0011] One end of the drag chain is fixedly connected with the drag chain fixing plate, and the other end is fixedly connected with the bottom plate after being bent upwards.

[0012] Specifically, the two sides of the protection groove are respectively provided with a plurality of limiting ears for adapting to the inner side wall of the fixed groove.

[0013] Specifically, the front end of the protection groove is provided with a blocking part extending upward on each side.

[0014] The utility model discloses a traction rod protection groove, which is characterized by the following: the traction rod protection groove comprises a traction rod and a protection groove. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Is the connection state three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 Is the connection state three-dimensional structure schematic diagram of the traction rod and the protection groove;

[0017] Figure 3 Is the traction rod pull out state structure schematic diagram;

[0018] Figure 4 Is the traction rod income state structure schematic diagram;

[0019] Figure 5 Is the protection groove front end connection state structure schematic diagram;

[0020] In the drawing, 100 is a fixed groove,

[0021] 200 is a traction rod, 210 is a threading hole,

[0022] 300 is a protection groove, 310 is a limiting ear, 320 is a positioning plate,

[0023] 400 is a tow chain. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as the limitation of the utility model.

[0025] In the description of the utility model, it needs to be understood that the directions or position relations indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0026] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] The following refers to Figures 1-5 The utility model is described;

[0028] The harness pipe protection device for telescopic drawbar comprises:

[0029] The fixed groove 100 is in U-shaped structure, and is detachably fixedly arranged at the bottom of the chassis; the fixed groove 100 is provided with a detachable fixed cover plate;

[0030] The drawbar 200 is slidably arranged in the fixed groove 100, and the front end is located outside the fixed groove 100; the side portion close to the front end is provided with a threading hole 210;

[0031] The tail portion of the drawbar 200 is provided with a fixedly connectable bolt hole.

[0032] The protection groove 300 is slidably arranged in the fixed groove 100, and the front end is detachably fixedly connected with the tail end of the drawbar 200; the pipeline passing through the threading hole 210 passes through the drawbar 200 and the protection groove 300 in sequence and then enters the chassis through the drag chain 400.

[0033] The tail portion of the protection groove 300 is provided with a fixedly connected drag chain fixing plate;

[0034] One end of the drag chain 400 is fixedly connected with the drag chain fixing plate, and the other end is fixedly connected with the chassis after being bent upwards.

[0035] The two sides of the protection groove 300 are respectively provided with a plurality of limiting ears 310, which are used for adapting to the inner side wall of the fixed groove 100, and play the roles of limiting and sliding stability.

[0036] The front end of the protection groove 300 is provided with a fixedly connected positioning plate 320;

[0037] The positioning plate 320 is in L-shaped structure, comprising a vertical plate and a horizontal plate;

[0038] The vertical plate is fixed at the front end of the protection groove 300, and is provided with an observation port, so as to facilitate checking whether the front end connecting piece enters the connecting hole;

[0039] The horizontal plate is connected with the traction box 200, and is provided with a connecting hole, so that the horizontal plate and the traction box 200 are detachably fixed through the connecting piece.

[0040] The front end of the protection groove 300 is provided with upwardly extending blocking parts on both sides, and the pipeline is located between the blocking parts, so as to prevent the pipeline from entering the outside of the protection groove 300.

[0041] The utility model discloses utilize the self structure of traction rod 200, and wire harness such as circuit, air pipe line is arranged from the inside of traction rod 200, and is effectively protected circuit, air pipe line through the protection groove design. Figures 3-4 As shown in the drawings, the wire harness pipeline and the traction rod 200 do not slide and rub relatively in the extension and retraction movement of the protection groove 300. The flexible structure (tow chain) is designed at the tail end of the wire harness protection groove, so that the wire harness pipeline is flexibly deformed in the extension and retraction range. The protection groove 300 can be connected with the traction box 200 in the hanging mode, so as to facilitate installation and maintenance.

[0042] For the content disclosed in the case, the following points need to be explained:

[0043] (1) the embodiment disclosed in the case only relates to the structure involved in the embodiment disclosed in the case, and other structures can refer to the usual design;

[0044] (2) in the case of no conflict, the embodiments disclosed in the case and the features in the embodiments can be combined to obtain new embodiments;

[0045] The above is only the specific embodiment disclosed in the case, but the protection scope of the disclosure is not limited to this, and the protection scope disclosed in the case should be subject to the protection scope of the claims.

Claims

1. A wiring harness protection device for a telescopic traction rod, characterized in that, include: The fixing groove (100) has a U-shaped structure and is detachably and fixedly installed at the bottom of the chassis; The traction rod (200) is slidably disposed in the fixing groove (100), with its front end located on the outside of the fixing groove (100) and a wire hole (210) provided on the side near the front end. The protective groove (300) is slidably disposed in the fixed groove (100), and its front end is provided with a fixedly connected positioning plate (320); the positioning plate (320) has an L-shaped structure, including a vertical plate and a horizontal plate; the vertical plate is fixed to the front port of the protective groove (300) and is provided with an observation port; the horizontal plate is detachably connected to the traction rod (200); the pipeline passing through the wire hole (210) passes through the traction rod (200) and the protective groove (300) in sequence and then enters the chassis through the drag chain (400).

2. The wiring harness protection device for a telescopic traction rod according to claim 1, characterized in that, The front end of the traction rod (200) is provided with a detachable and fixed traction hook.

3. The wiring harness protection device for a telescopic traction rod according to claim 1, characterized in that, The tail of the protective groove (300) is provided with a fixedly connected drag chain fixing plate; One end of the cable chain (400) is fixedly connected to the cable chain fixing plate, and the other end is bent upward and fixedly connected to the chassis.

4. The wiring harness protection device for a telescopic traction rod according to claim 1, characterized in that, The protective groove (300) is provided with several limiting ears (310) on both sides for fitting with the inner sidewall of the fixing groove (100).

5. The wiring harness protection device for a telescopic traction rod according to claim 1, characterized in that, The front end of the protective groove (300) is provided with upwardly extending blocking parts on both sides.

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