Draw bar
By installing cables in the hollow cavity of the traction rod and extending them from the front body to the rear body with telescopic frame and conduits, the problem of damage caused by exposure of cables is solved, and the internal operation of the cable is achieved. stability.
Patent Information
- Application Number
- CN202421290905.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the existing traction rod, the cable is exposed between the front and rear vehicles, which is easy to be damaged and cannot be effectively fixed, resulting in damage to the cable during the traction process of the vehicle.
A towing rod is designed to extend the cable from the front body to the rear body by installing cables in the hollow cavity of the fixing frame and using a telescopic frame and conduit. The cable runs in the towing rod to avoid exposure. Spring wires and conduits to ensure stability and fixation of the cable.
The internal operation of the cable is achieved, external damage is avoided, the integrity of the cable and the stability of the traction process are ensured, and the cable is damaged due to relative movement.
Smart Images
Figure CN222291406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of traction rods, in particular to a traction rod used for connecting a front vehicle body and a rear vehicle body. Background Art
[0002] The traction rod used for vehicle traction plays an important role in the process of vehicle traction, facilitating the installation and carrying of the front vehicle body to the rear vehicle body, and facilitating the connection and fixation of the front vehicle body to the rear vehicle body. A conventional traction rod includes a fixed frame and a telescopic frame, the telescopic frame is inserted into the hollow cavity of the fixed frame and moves back and forth in the fixed frame, and a locking device is provided between the fixed frame and the telescopic frame, such as a locking hole is provided on the telescopic frame, a pin hole is provided on the fixed frame, and the pin shaft is inserted into the locking hole on the telescopic frame through the pin hole on the fixed frame, thereby realizing the fixing and locking of the telescopic frame.
[0003] It is often necessary to install wires, signal lines and other cables between the front and rear bodies towed by a towing rod, so as to realize the common control and power supply of the equipment such as signal lights of the front and rear bodies. However, when the wires are installed between the front and rear bodies, the cables are exposed and easily damaged. In addition, the cables between the front and rear bodies cannot be effectively fixed, and are easily damaged due to the relative movement of the front and rear bodies. Utility Model Content
[0004] The main purpose of the utility model is to provide a towing rod, so as to solve the problem that during the cable connection process between the front vehicle body and the rear vehicle body in the prior art, the cables are exposed and easily damaged.
[0005] The utility model provides a traction rod for connecting a front vehicle body and a rear vehicle body, the traction rod comprises a fixing frame installed at the lower part of the front vehicle body, a hollow cavity is arranged in the fixing frame, a telescopic frame is arranged in the hollow cavity and inserted into the hollow cavity from the rear and slides forward and backward in the hollow cavity, and the rear part of the telescopic frame is used to connect the rear vehicle body. A cable is arranged between the front vehicle body and the rear vehicle body, the cable extends from the front vehicle body to the hollow cavity in the fixing frame, the cable is inserted into the telescopic frame and extends from the rear part of the telescopic frame, and the cable extends from the rear part of the telescopic frame and then extends to the rear vehicle body.
[0006] Preferably, the cable includes a conductive wire and a signal wire.
[0007] Preferably, the cable is a spring wire.
[0008] Preferably, one end of the telescopic frame extending into the hollow cavity is provided with a conduit extending forward, and the conduit is used for inserting cables, and the cables extend into the telescopic frame through the conduit and extend out from the rear of the telescopic frame.
[0009] More preferably, a guide hole is provided in the hollow cavity of the fixing frame, and the catheter is inserted into the guide hole.
[0010] More preferably, a baffle is provided in the fixing frame, and the guide hole is provided on the baffle.
[0011] More preferably, a roller frame is provided in the fixing frame, an upper roller and a lower roller are provided on the roller frame, and the guide hole is a gap between the upper roller and the lower roller.
[0012] More preferably, the catheter also includes an internal pipe section located inside the telescopic frame and an external pipe section located outside the telescopic frame, the external pipe section extends forward, the internal pipe section extends from the front end of the telescopic frame to the rear end of the telescopic frame, and the cable extends from the front end of the external pipe section and extends from the rear end of the internal pipe section.
[0013] Compared with the prior art, the traction rod provided by the utility model has the following beneficial effects:
[0014] The above-mentioned traction rod arranges the cables through the hollow cavity of the fixed frame, so that the cables extending from the front vehicle body enter the telescopic frame through the hollow cavity of the fixed frame, extend from the rear of the telescopic frame, and finally enter the rear vehicle body; by arranging the cables in the above-mentioned manner, it is necessary to set wire holes for convenient threading at the corresponding positions of the fixed frame and the telescopic frame. By arranging the cables through the above-mentioned traction rod, the cables can be located inside the traction rod, and the cables are not exposed to the outside, thereby preventing the cables from being damaged by external damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0016] Obviously, the drawings described below are only some specific embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.
[0017] Figure 1 It is a partial three-dimensional structure exploded diagram of the fixing frame in Example 1 of the utility model.
[0018] Figure 2 It is a partial three-dimensional structure exploded diagram of the telescopic frame in Example 1 of the utility model.
[0019] Figure 3 It is a partial cross-sectional schematic diagram of the traction rod in Example 1 of the utility model.
[0020] Description of Figure Numbers:
[0021] 1 fixed frame; 2 telescopic frame; 3 external pipe section; 4 internal pipe section. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0028] Example 1
[0029] This embodiment provides a traction rod for connecting a front body and a rear body, the traction rod comprises a fixed frame 1 installed at the lower part of the front body, a hollow cavity is provided in the fixed frame 1, a telescopic frame 2 is provided in the hollow cavity which is inserted into the hollow cavity from the rear and slides forward and backward in the hollow cavity, and the rear part of the telescopic frame 2 is used to connect the rear body. A cable is provided between the front body and the rear body, the cable extends from the front body to the hollow cavity in the fixed frame 1, the cable is inserted into the telescopic frame 2 and extends from the rear part of the telescopic frame 2, and the cable extends from the rear part of the telescopic frame 2 to the rear body.
[0030] In the above-mentioned traction rod, a fixed frame 1 is arranged at the lower part of the front vehicle body, and a telescopic frame 2 that slides forward and backward is arranged in the hollow cavity of the fixed frame 1. The telescopic frame 2 can slide forward and backward in the hollow cavity, and the rear end of the telescopic frame 2 is used to connect to the rear vehicle body. There are cables such as wires and signal lines connecting the front vehicle body and the rear vehicle body. In this embodiment, the cables enter the hollow cavity of the fixed frame 1 from the lower part of the front vehicle body, extend into the telescopic frame 2 through the front part of the telescopic frame 2, enter the rear part of the telescopic frame 2 through the internal space of the telescopic frame 2, and extend from the rear part of the telescopic frame 2. After the cables extend from the telescopic frame 2, they are connected to the rear vehicle body. Through the arrangement of the above-mentioned traction rod, the cables can be integrated into the traction rod to avoid being exposed to the outside and to prevent the cables from being damaged by external damage.
[0031] Specifically, in the present embodiment, during the sliding process of the telescopic frame 2 in the fixed frame 1, in order to prevent the cables from being squeezed into the gap between the telescopic frame 2 and the fixed frame 1, the cables cannot be piled up in front of the telescopic frame 2. For this purpose, the cables are configured as spring wires. When the telescopic frame 2 is extended, the spring wires elastically stretch, and when the telescopic frame 2 is retracted into the fixed frame 1, the spring wires retract.
[0032] Specifically, in this embodiment, in the process of the telescopic frame 2 sliding in the fixed frame 1, in order to prevent the cables from squeezing into the gap between the telescopic frame 2 and the fixed frame 1, the cables cannot be piled up in front of the telescopic frame 2. To this end, one end of the telescopic frame 2 extending into the hollow cavity is provided with a conduit extending forward, and the conduit is used to penetrate the cables. The cables extend into the telescopic frame 2 through the conduit and extend from the rear of the telescopic frame 2. The position where the cables are inserted into the conduit is far away from the front end of the telescopic frame 2, so as to prevent the cables from squeezing into the gap between the telescopic frame 2 and the fixed frame 1.
[0033] More specifically, in this embodiment, in order to prevent the telescopic frame 2 from deviating to the side and provide a guiding effect for the movement of the telescopic frame 2, a guide hole is provided in the hollow cavity of the fixed frame 1, and the catheter is inserted into the guide hole.
[0034] More specifically, this embodiment further provides a setting method of the guide hole, wherein a baffle is provided in the fixing frame 1, and the guide hole is provided on the baffle.
[0035] More specifically, this embodiment also provides a setting method of the guide hole, a roller frame is provided in the fixing frame 1, an upper roller and a lower roller are provided on the roller frame, and the guide hole is a gap between the upper roller and the lower roller.
[0036] More specifically, in order to make the arrangement of the cables more regular, the conduit also includes an internal pipe section 4 located inside the telescopic frame 2 and an external pipe section 3 located outside the telescopic frame 2, the external pipe section 3 extends forward, and the internal pipe section 4 extends from the front end of the telescopic frame 2 to the rear of the telescopic frame 2, and the cable extends from the front of the external pipe section 3 and extends from the rear of the internal pipe section 4. Of course, it should be noted that there must be a wire hole at the rear of the telescopic frame 2 to facilitate the extension of the cable; of course, a plug can also be provided at the wire hole, and each wire of the cable extending from the front body is connected to the plug, and connected to the cable of the rear body through the plug.
[0037] Of course, the above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model and should be protected by the utility model.
Claims
1. A traction bar used to connect a front vehicle body and a rear vehicle body, the traction bar comprising a fixing frame mounted at the lower part of the front vehicle body, the fixing frame being provided with a hollow cavity, the hollow cavity being provided with a telescopic frame inserted into the hollow cavity from the rear and sliding forward and backward in the hollow cavity, the rear part of the telescopic frame being used to connect to the rear vehicle body, characterized in that: A cable is arranged between the front body and the rear body, the cable extends from the front body to the hollow cavity in the fixing frame, the cable is inserted into the telescopic frame and extends from the rear of the telescopic frame, and the cable extends from the rear of the telescopic frame to the rear body.
2. The traction rod according to claim 1, characterized in that The cable includes a conductive line and a signal line.
3. The traction rod according to claim 1, characterized in that: The cable is a spring wire.
4. The traction rod according to claim 1, characterized in that: One end of the telescopic frame extending into the hollow cavity is provided with a conduit extending forward, and the conduit is used for inserting cables. The cables extend into the telescopic frame through the conduit and extend out from the rear of the telescopic frame.
5. The traction rod according to claim 4, characterized in that A guide hole is arranged in the hollow cavity of the fixing frame, and the catheter is inserted into the guide hole.
6. The traction rod according to claim 5, characterized in that A baffle is arranged in the fixing frame, and the guide hole is arranged on the baffle.
7. The traction rod according to claim 5, characterized in that A roller frame is arranged in the fixing frame, and an upper roller and a lower roller arranged up and down are arranged on the roller frame, and the guide hole is a gap between the upper roller and the lower roller.
8. The traction rod according to claim 4, characterized in that . The catheter also includes an internal pipe section located inside the telescopic frame and an external pipe section located outside the telescopic frame, the external pipe section extends forward, the internal pipe section extends from the front end of the telescopic frame to the rear end of the telescopic frame, and the cable extends from the front end of the external pipe section and extends from the rear end of the internal pipe section.