Replaceable semitrailer traction seat

Abstract

The utility model discloses a replaceable semitrailer traction seat, and belongs to the technical field of traction seats. A replaceable semitrailer traction seat comprises a bottom plate and a connecting part, a connecting frame is installed on the top face of the bottom plate, side frames which are symmetrically arranged are installed at the end of the connecting frame, a movable connector is defined by the side frames and the connecting frame, and check blocks are movably installed at the positions, located at openings in the side faces of the movable connector, of the side frames. And a connecting part is movably mounted in the movable connector. Through the improvement of the overall structure and the split design of the bottom plate and the connecting part, the connecting part can be independently replaced on the premise that the bottom plate is not detached, follow-up replacement and maintenance are more convenient, a connecting frame is installed on the top face of the bottom plate, side frames which are symmetrically arranged are installed at the end of the connecting frame, a movable connector is formed, and the connecting part is clamped in the movable connector. The connecting frame can wrap and fix the connecting part, and it is guaranteed that the position between the connecting part and the bottom plate is stable in the vehicle advancing process.

Description

Technical Field

[0001] The utility model relates to the technical field of fifth wheels, and more specifically to a replaceable fifth wheel of a semitrailer. Background Art

[0002] With the rapid development of automobile trailer transportation, semi-trailer trains are becoming more and more popular as a transportation method with strong carrying capacity, high efficiency and convenience. The fifth wheel is an important assembly on the semi-trailer train. Its function is to transmit the longitudinal force (including traction and braking force) between the tractor and the semi-trailer, and to ensure the steering ability of the semi-trailer train.

[0003] The existing publication number is CN220374662U, and the patent name is a patent document of a semi-trailer traction seat with a reinforced anti-fracture structure, which discloses that by setting a movable cylinder, a support cylinder and a first spring, in conjunction with a rotating rod, a slider and a second spring, the saddle can be buffered when the saddle is impacted and squeezed, thereby protecting the saddle and preventing it from breaking;

[0004] However, in actual use, due to the poor bearing capacity of the spring, it is easy to deform when subjected to force, which affects the accuracy of the traction seat of the front of the vehicle to the vehicle when the front of the vehicle tows the vehicle to turn, affecting the driver's turning operation. In view of this, we propose a replaceable semi-trailer traction seat. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of the utility model is to provide a replaceable semi-trailer traction seat to solve the problems raised in the above background technology.

[0007] 2. Technical solution

[0008] A replaceable semi-trailer traction seat comprises a base plate and a connecting part, wherein a connecting frame is installed on the top surface of the base plate, and symmetrically arranged side frames are installed on the ends of the connecting frame. The side frames and the connecting frame are surrounded to form a movable interface, and a stopper is movably installed on the side opening position of the movable interface, and the connecting part is movably installed in the movable interface.

[0009] Preferably, the connecting portion comprises a top plate, a sliding seat is installed on the side of the top plate facing the bottom plate, and the sliding seat is slidably installed in the movable joint.

[0010] Preferably, the stopper comprises a wedge, and the sliding seat is provided with an inclined surface on one side facing the wedge.

[0011] Preferably, a vertical hole is opened in the middle of the wedge block, the side frame includes a main body rotating shaft, a notch is opened at the end of the main body for the wedge block to rotate, and the rotating shaft is installed through the vertical hole.

[0012] Preferably, the wedge block is provided with a support ear at one end away from the slide seat, and the base plate is provided with a positioning pin at the support ear.

[0013] Preferably, the wedge block is located at the opening of the connection frame, and a reinforcement block is installed on a side of the connection frame away from the wedge block.

[0014] Preferably, the connection frame is provided with a notch at the wedge block, and the height of the notch is greater than the height of the wedge block.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Through the improvement of the overall structure and the separate design of the bottom plate and the connecting part, the connecting part can be replaced separately without disassembling the bottom plate, and the subsequent replacement and maintenance are more convenient. A connecting frame is installed on the top surface of the bottom plate, and symmetrical side frames are installed on the ends of the connecting frame to form a live interface. The connecting part is clamped in the live interface, and the connecting frame can wrap and fix the connecting part to ensure that the position between the connecting part and the bottom plate is stable during the movement of the vehicle.

[0018] 2. Through the setting of the wedge block, the wedge block is movably installed at the end of the side frame, and the wedge block can be flexibly rotated in the notch. A support ear is set at the end of the wedge block away from the sliding seat, and a notch is left between the two support ears. The bottom plate is located at the support ear and is plugged with a locating pin. When the sliding seat needs to be disassembled, the locating pin can be pulled out, and the wedge block can be swung smoothly. The locating pin is removed into the blind hole, and the position of the wedge block is locked in conjunction with the support ear to ensure a stable combination of the sliding seat and the connecting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the disassembly of the utility model;

[0022] Figure 4 It is a schematic diagram of the disassembly of part of the structure of the utility model.

[0023] Description of the numbers in the figure:

[0024] Base plate 1; connection frame 2;

[0025] Side frame 3; main body 31; notch 32; rotating shaft 33;

[0026] Stopper 4; wedge 41; vertical hole 42; support ear 43;

[0027] Connecting portion 5; top plate 51; slide seat 52; inclined surface 53; reinforcing block 6; positioning pin 7; movable joint 8. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Example:

[0032] This embodiment provides a replaceable semi-trailer traction seat, referring to Figure 1, including a bottom plate 1 and a connecting part 5, the bottom plate 1 is connected to the car body base by bolts, and the connecting part 5 is used to connect to the traction head of the semi-trailer. When in use, due to the split design of the bottom plate 1 and the connecting part 5, the connecting part 5 can be replaced separately without disassembling the bottom plate 1, and the subsequent replacement and maintenance are more convenient. Among them, a connecting frame 2 is installed on the top surface of the bottom plate 1, and the connecting frame 2 is fixed on the top surface of the bottom plate 1. A symmetrically arranged side frame 3 is installed at the end of the connecting frame 2. The side frame 3 cooperates with the connecting frame 2 to form a stable sliding body, and The side frame 3 and the connecting frame 2 are surrounded to form a movable interface 8, in which a connecting part 5 is movably installed. The movable interface 8 opens toward the traction head of the semi-trailer. After the connecting part 5 is installed in the movable interface 8, the connecting frame 2 can wrap and fix the connecting part 5 to ensure that the position between the connecting part 5 and the bottom plate 1 is stable during the movement of the vehicle. At the same time, the side frame 3 is located at the side opening position of the movable interface 8 and a stopper 4 is movably installed. The stopper 4 can block the connecting part 5 to prevent the connecting part 5 from falling off from the movable interface 8, thereby ensuring stability during use.

[0033] In a further embodiment, referring to Figure 2 The connecting part 5 includes a top plate 51, which is used to connect with the traction head. A slide 52 is installed on the side of the top plate 51 facing the bottom plate 1. The slide 52 is used to be horizontally connected with the side frame 3 and the connecting frame 2 to complete a quick combined connection. The slide 52 is slidably installed in the movable joint 8. The slide 52 is thin at the top and thick at the bottom. The thicker position of the slide 52 is slidably connected in the movable joint 8, and the side frame 3 and the upper part of the connecting frame 2 are stuck in the thinner position of the slide 52 to ensure the stability of the combination.

[0034] In a further embodiment, referring to Figure 3 The stopper 4 includes a wedge 41, and one end of the wedge 41 located in the movable joint 8 is an inclined wedge-shaped head. At the same time, a slope 53 is provided on the side of the slide 52 facing the wedge 41. When the wedge 41 is overlapped on the left side of the slide 52, it can fit with the slope 53. With a larger contact area and a closer fitting angle, the two wedges 41 can ensure that the slide 52 is stably confined in the movable joint 8.

[0035] In a further embodiment, referring to Figure 4 A vertical hole 42 is provided in the middle of the wedge block 41, and the vertical hole 42 passes through the wedge block 41. The side frame 3 includes a main body 31 shaft 33. The main body 31 is a strip structure. The upper part of the main body 31 is fixedly connected to the connecting frame 2. A notch 32 for the wedge block 41 to rotate is provided at the end of the main body 31. The wedge block 41 can rotate flexibly in the notch 32, and the shaft 33 is installed in the vertical hole 42 to ensure the stability of the position of the wedge block 41 before and after rotation.

[0036] In a further embodiment, referring to Figure 4The wedge block 41 is provided with a support ear 43 at one end away from the sliding seat 52. There are two support ears 43, and a slot is left between the two support ears 43. The bottom plate 1 is provided with a positioning pin 7 inserted at the support ear 43. When the sliding seat 52 needs to be removed, the positioning pin 7 can be pulled out of the blind hole on the bottom plate 1. At this time, the wedge block 41 can swing smoothly. After the disassembly and assembly are completed, the positioning pin 7 is removed into the blind hole, and the position of the wedge block 41 is locked in cooperation with the support ear 43 to ensure the stable combination of the sliding seat 52 and the connecting frame 2.

[0037] In a further embodiment, referring to Figure 1 The wedge block 41 is located at the opening of the connecting frame 2. When the wedge block 41 rotates into the notch 32, the slide 52 can smoothly enter and exit the connecting frame 2. When the wedge block 41 rotates out of the notch 32, the wedge block 41 can block the slide 52, which is easy to use. In addition, a reinforcing block 6 is installed on the side of the connecting frame 2 away from the wedge block 41. The reinforcing block 6 can strengthen the connection stability between the connecting frame 2 and the base plate 1, ensuring that the connection between the slide 52 and the base plate 1 through the connecting frame 2 is more firmly secured during traction.

[0038] In a further embodiment, referring to Figure 4 The end of the main body 31 close to the wedge block 41 is chamfered to allow the wedge block 41 to rotate smoothly and to be retracted and released. The connecting frame 2 is provided with a notch at the wedge block 41, and the height of the notch is greater than the height of the wedge block 41, so that the wedge block 41 can rotate smoothly.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is determined by the attached claims.

Claims

1. A replaceable semitrailer fifth wheel, comprising a base plate (1) and a connecting portion (5), characterized in that: A connection frame (2) is installed on the top surface of the bottom plate (1), and a symmetrically arranged side frame (3) is installed at the end of the connection frame (2). The side frame (3) and the connection frame (2) are surrounded to form a movable interface (8), and a stopper (4) is movably installed on the side frame (3) at the side opening position of the movable interface (8), and a connecting portion (5) is movably installed in the movable interface (8).

2. The replaceable semitrailer fifth wheel according to claim 1, characterized in that: The connecting portion (5) comprises a top plate (51), a sliding seat (52) being installed on the side of the top plate (51) facing the bottom plate (1), and the sliding seat (52) being slidably installed in the movable joint (8).

3. A replaceable semitrailer fifth wheel according to claim 2, characterized in that: The stopper (4) comprises a wedge (41), and the sliding seat (52) is provided with an inclined surface (53) on a side facing the wedge (41).

4. A replaceable semitrailer fifth wheel according to claim 3, characterized in that: A vertical hole (42) is provided in the middle of the wedge block (41); the side frame (3) comprises a main body (31) and a rotating shaft (33); a notch (32) for the wedge block (41) to rotate is provided at the end of the main body (31); and the rotating shaft (33) is installed through the vertical hole (42).

5. The replaceable semitrailer fifth wheel according to claim 4, characterized in that: The wedge block (41) is provided with a support ear (43) at one end away from the slide seat (52), and the base plate (1) is provided with a positioning pin (7) at the support ear (43).

6. The replaceable semitrailer fifth wheel according to claim 5, characterized in that: The wedge block (41) is located at the opening of the connection frame (2), and a reinforcement block (6) is installed on the side of the connection frame (2) away from the wedge block (41).

7. The replaceable semitrailer fifth wheel according to claim 6, characterized in that: The connection frame (2) is provided with a notch at the wedge block (41), and the height of the notch is greater than the height of the wedge block (41).

Images