Semitrailer front end connecting seat and semitrailer
By designing the front connector of the semi-trailer and raising the position of the hand valve and the seven-pin socket, the problem of pipe and line scraping caused by the low position in the existing technology was solved, and the stable operation of the semi-trailer was achieved.
Patent Information
- Application Number
- CN202520806898.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-25
AI Technical Summary
In existing technologies, the handshake valve and the seven-pin socket are positioned too low, which makes the pipelines and lines prone to scraping against obstacles on rough roads, slopes, or speed bumps, causing problems such as cracks or short circuits.
Design a semi-trailer front connecting seat, including a base, a lifting frame and a mounting plate. The lifting frame is fixedly connected to the front panel, and the mounting plate is provided with mounting holes to raise the position of the hand valve and the seven-pin socket to avoid scratching with obstacles.
By raising the position of the hand-held valve and the seven-pin socket, the pipes and circuits are prevented from scratching against obstacles, thus preventing damage and ensuring the normal use of the semi-trailer.
Smart Images

Figure CN223934652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semi-trailers, specifically to a front-end connecting seat for a semi-trailer and a semi-trailer. Background Technology
[0002] Currently, semi-trailers used for transporting containers typically have a standard seven-pin socket and two hand valves installed on their front beams to maintain the semi-trailer's service brake, emergency brake, or lighting indicators during operation. Specifically, the seven-pin socket is part of the semi-trailer's electrical system, transmitting the tractor's lighting signals to the semi-trailer. The hand valves are part of the semi-trailer's air braking system, connecting the tractor's air tank to the semi-trailer's air circuit to supply air to the skeleton semi-trailer.
[0003] Currently, the aforementioned hand-held valve and seven-pin socket are generally installed at the bottom center of the front beam. After the semi-trailer is connected to the tractor unit via the towing pin, the electrical and pneumatic connectors on the tractor unit need to be matched and connected to the hand-held valve and seven-pin socket on the semi-trailer. However, in actual use, it has been found that this arrangement of the hand-held valve and seven-pin socket results in the pipelines and wiring being positioned too low. When passing over rough roads, slopes, or speed bumps, they are prone to scraping against obstacles, leading to pipeline rupture, socket deformation, or short circuits.
[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention
[0005] To improve or solve the technical problem in the prior art where the handshake valve and seven-pin socket are positioned too low, causing pipes and wiring to easily scratch obstacles, this utility model provides a front-end connecting seat for semi-trailers. The connecting seat includes: a base, suitable for mounting on a front beam; a lifting frame, one end connected to the base and the other end extending upwards, suitable for forming a fixed connection with the front panel; and a mounting plate disposed at the end of the lifting frame away from the base; the mounting plate has a first mounting hole suitable for mounting the handshake valve and a second mounting hole suitable for mounting the seven-pin socket.
[0006] This utility model discloses a semi-trailer front-end connecting seat, comprising a base, a lifting frame, and a mounting plate. The base supports the lifting frame, securing it to the semi-trailer. One end of the lifting frame abuts against the base and forms a fixed connection with the front panel, enhancing the connection stability between the lifting frame and the semi-trailer, and consequently, the connection stability of the hand-held valve and the seven-pin socket. The mounting plate has a first mounting hole and a second mounting hole for mounting the hand-held valve and the seven-pin socket. The mounting plate is installed at the end of the lifting frame furthest from the base, and this end extends upwards, raising the position of the hand-held valve and the seven-pin socket, thereby raising the position of the pipelines and electrical circuits, preventing them from scratching against obstacles and protecting them from damage. Through these features, this utility model's semi-trailer front-end connecting seat, with its lifting frame, elevates the position of the hand-held valve and the seven-pin socket, preventing the pipelines and electrical circuits from scratching against obstacles and ensuring the normal operation of the semi-trailer.
[0007] Furthermore, the base includes a base plate connected to the front beam, a side column mounted on the base plate, and a side plate connected to the side column, the side plate being connected to the lifting frame.
[0008] Furthermore, the base plate includes a fixing part connected to the front beam, a limiting part arranged side by side with the fixing part, and a supporting part connecting the fixing part and the limiting part; the side plate has a first side connected to the fixing part, a second side connected to the supporting part, and a third side connected to the limiting part.
[0009] Furthermore, the mounting plate includes a connecting portion that is fixedly connected to the lifting frame, and a mounting portion connected to the connecting portion; the first mounting hole and the second mounting hole are formed on the mounting portion, and the mounting portion is arranged at an angle.
[0010] Furthermore, a mounting groove communicating with the second mounting hole is provided on the mounting part, and a fixing bolt is arranged in the mounting groove.
[0011] Furthermore, a bend is formed on the side of the lifting frame near the front panel, and a connecting hole is provided on the bend.
[0012] To improve or solve the technical problem in the prior art where the handshake valve and seven-pin socket are positioned too low, causing pipes and wiring to easily scratch obstacles, this utility model provides a semi-trailer. The semi-trailer includes a front beam; a front panel disposed above the front beam; and a semi-trailer front connecting seat as described above. The base of the semi-trailer front connecting seat is fixedly connected to the front beam, and the lifting frame of the semi-trailer front connecting seat is fixedly connected to the front panel.
[0013] Furthermore, the bent portion of the lifting frame is riveted to the front panel.
[0014] In summary, compared with the prior art, this utility model has the following beneficial effects:
[0015] The mounting plate has a first mounting hole and a second mounting hole, which can be used to install the hand-held valve and the seven-pin socket. The mounting plate is installed at the end of the lifting frame away from the base, and the end of the lifting frame away from the base extends upward, which can raise the position of the hand-held valve and the seven-pin socket, thereby raising the position of the pipeline and circuit, preventing them from scratching with obstacles and preventing damage to the pipeline and circuit. Attached Figure Description
[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:
[0017] Figure 1 This is a schematic diagram of an embodiment of a semi-trailer according to the present invention;
[0018] Figure 2 This is a schematic diagram of an embodiment of a front-end connecting seat in a semi-trailer according to the present invention.
[0019] List of reference numerals in the attached drawings: 1. Base; 11. Base plate; 111. Fixing part; 112. Limiting part; 113. Support part; 12. Side column; 13. Side plate; 2. Lifting frame; 21. Bending part; 3. Mounting plate; 31. Connecting part; 32. Mounting part; 33. First mounting hole; 34. Second mounting hole; 35. Mounting through groove; 100. Front beam; 200. Front panel. Detailed Implementation
[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0021] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] To improve or solve the technical problem in the prior art where the hand-held valve and seven-pin socket are positioned too low, causing pipes and wiring to easily scratch obstacles, this utility model provides a front-end connecting seat for semi-trailers. The connecting seat includes: a base 1, suitable for mounting on a front beam 100; a lifting frame 2, one end connected to the base 1, the other end extending upwards, and suitable for forming a fixed connection with the front panel 200; and a mounting plate 3, disposed at the end of the lifting frame 2 away from the base 1; the mounting plate 3 has a first mounting hole 33 suitable for mounting the hand-held valve and a second mounting hole 34 suitable for mounting the seven-pin socket.
[0024] Figure 1 This is a schematic diagram of an embodiment of a semi-trailer according to the present invention. Figure 2 This is a schematic diagram of an embodiment of the front-end connecting seat in a semi-trailer according to the present invention. Figure 1 and Figure 2 As shown, in one or more embodiments, the semi-trailer front connecting seat of this utility model includes a base 1, a lifting frame 2, and a mounting plate 3.
[0025] See also Figure 1 and Figure 2In one or more embodiments, the base 1 includes a base plate 11, side posts 12 mounted on the base plate 11 and located on both sides of the base plate 11, and side plates 13 connected to the side posts 12. The base plate 11 is used to connect to the front beam 100. The connection of the side posts 12 to the base plate 11 enhances the structural stability of the base 1 and also facilitates the installation of the side plates 13. The side plates 13 are arranged on one side of the side posts 12 and are used to connect to the lifting frame 2. Specifically, the base plate 11 includes a fixing part 111 connected to the front beam 100, a limiting part 112 arranged side-by-side with the fixing part 111, and a support part 113 connecting the fixing part 111 and the limiting part 112. The fixing part 111 is fitted to the front beam 100 and is fixedly connected to the front beam 100 by bolts. The support part 113 extends outward from the fixing part 111 and is inclined upward. The limiting part 112 is arranged on the side of the support part 113 away from the fixing part 111, and extends vertically upward from the support part 113. Side posts 12 are mounted on the support part 113, and their two ends are connected to the limiting part 112 and the fixing part 111, respectively. Two side posts 12 are provided, each close to one side of the support part 113. Further, two side plates 13 are provided, each connected to one of the two side posts 12. Specifically, the side plates 13 are located on the outside of the side plate posts. The side plates 13 are approximately trapezoidal in shape and have a first side connected to the fixing part 111, a second side connected to the support part 113, and a third side connected to the limiting part 112. The side plates 13 and the side posts 12 can be fixedly connected by welding, bolting, or other methods. Further, an arc-shaped groove is provided on the side plate 13 to avoid the front panel 200.
[0026] See also Figure 1 and Figure 2 The lifting frame 2 is mounted on the base 1 and connected to the front panel 200. In one or more embodiments, two lifting frames 2 are provided, arranged side by side, and each connected to one of the two side panels 13. One end of the lifting frame 2 is connected to the side panel 13, and the other end extends vertically upward. Specifically, mounting holes are provided at the bottom of the lifting frame 2, and the lifting frame 2 and the side panel 13 are fixedly connected by bolts. Further, two rows of connecting holes are provided on the lifting frame 2 for connecting the mounting plate 3. Further, a bent portion 21 is formed on the side of the lifting frame 2 near the front panel 200, and the bent portion 21 is located on the side near the front panel 200 and fits against the front panel 200. Specifically, connecting holes are provided on the bent portion 21, and the bent portion 21 and the front panel 200 are fixedly connected by a riveting structure.
[0027] See also Figure 1 and Figure 2The mounting plate 3 is installed between two lifting frames 2, and is located at the end of the lifting frame 2 away from the base 1. Simultaneously, the mounting plate 3 is fixedly connected to the two lifting frames 2. In one or more embodiments, the mounting plate 3 includes a connecting portion 31 fixedly connected to the lifting frame 2, and a mounting portion 32 connected to the connecting portion 31. The connecting portion 31 is located on both sides of the mounting portion 32, and through holes are formed on the connecting portion 31, corresponding to the connecting holes on the lifting frame 2, thereby fixing the connecting portion 31 to the lifting frame 2 with bolts. Specifically, each connecting portion 31 has two through holes, each corresponding to one of two rows of connecting holes, allowing the connecting portion 31 to be arranged at an angle. It is understood that with two rows of connecting holes, the height of the mounting plate 3 can be adjusted as needed. Furthermore, both ends of the mounting portion 32 are connected to the sides of the two connecting portions 31, allowing the mounting portion 32 to also be arranged at an angle. Figure 1 As shown, the mounting part 32 faces downwards and to the left, facilitating the connection of the hand-held valve and the seven-pin socket by the operator. Furthermore, the mounting part 32 has a first mounting hole 33 for mounting the hand-held valve and a second mounting hole 34 for mounting the seven-pin socket. The first mounting hole 33 is located near the lower side of the mounting plate 3, and the second mounting hole 34 is located near the upper side of the mounting plate 3. That is, the first mounting hole 33 and the second mounting hole 34 are arranged side-by-side. Further, the mounting part 32 also has a mounting groove 35 communicating with the second mounting hole 34. A fixing bolt is installed in the mounting groove 35 to secure the seven-pin socket to the mounting part 32. Exemplarily, the mounting grooves 35 are arranged circumferentially along the second mounting holes 34. Each second mounting hole 34 can correspond to two, four, or other suitable numbers of mounting grooves 35 to accommodate different seven-pin sockets.
[0028] To improve or solve the technical problem in the prior art where the handshake valve and seven-pin socket are positioned too low, causing pipes and wiring to easily scratch obstacles, this utility model provides a semi-trailer. The semi-trailer includes a front beam 100; a front panel 200 arranged above the front beam 100; and a semi-trailer front connecting seat of any of the above. The base 1 of the semi-trailer front connecting seat is fixedly connected to the front beam 100, and the lifting frame 2 of the semi-trailer front connecting seat is fixedly connected to the front panel 200.
[0029] See Figure 1 The front beam 100 is located at the front of the frame and is used to mount the base 1. The front panel 200 is located above the front beam 100 and protrudes from the front beam 100, with an arc-shaped groove in the front panel avoiding the front panel 200. Specifically, the base 1 is fixedly connected to the front beam 100 by bolts, and the bent portion 21 of the lifting frame 2 is fixedly connected to the front panel 200 by riveting.
[0030] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A semi-trailer front-end connecting seat, characterized in that, include: The base (1) is adapted to be mounted on the front beam (100); The lifting frame (2) is connected at one end to the base (1) and extends upward at the other end, and is adapted to form a fixed connection with the front panel (200); Mounting plate (3) is provided at one end of the lifting frame (2) away from the base (1); a first mounting hole (33) suitable for mounting a handshake valve and a second mounting hole (34) suitable for mounting a seven-pin socket are provided on the mounting plate (3).
2. The semi-trailer front-end connecting seat according to claim 1, characterized in that, The base (1) includes a base plate (11) connected to the front beam (100), a side column (12) mounted on the base plate (11), and a side plate (13) connected to the side column (12), the side plate (13) being connected to the lifting frame (2).
3. A semi-trailer front-end connecting seat according to claim 2, characterized in that, The base plate (11) includes a fixing part (111) connected to the front beam (100), a limiting part (112) arranged side by side with the fixing part (111), and a supporting part (113) connecting the fixing part (111) and the limiting part (112); the side plate (13) has a first side connected to the fixing part (111), a second side connected to the supporting part (113), and a third side connected to the limiting part (112).
4. A semi-trailer front-end connecting seat according to claim 1, characterized in that, The mounting plate (3) includes a connecting part (31) that is fixedly connected to the lifting frame (2) and a mounting part (32) connected to the connecting part (31); the first mounting hole (33) and the second mounting hole (34) are formed on the mounting part (32), and the mounting part (32) is arranged at an angle.
5. A semi-trailer front-end connecting seat according to claim 4, characterized in that, The mounting part (32) is also provided with a mounting through groove (35) communicating with the second mounting hole (34), and a fixing bolt is arranged in the mounting through groove (35).
6. A semi-trailer front-end connecting seat according to claim 1, characterized in that, A bend (21) is formed on the side of the lifting frame (2) near the front panel (200), and a connecting hole is provided on the bend (21).
7. A semi-trailer, characterized in that, include: Front beam (100); The front panel (200) is arranged above the front beam (100); and The semi-trailer front end connecting seat according to any one of claims 1-6, wherein the base (1) of the semi-trailer front end connecting seat is fixedly connected to the front beam (100), and the lifting frame (2) of the semi-trailer front end connecting seat is fixedly connected to the front panel (200).
8. The semi-trailer according to claim 7, characterized in that, The bent portion (21) of the lifting frame (2) is riveted to the front panel (200).