Quickly-connected semitrailer traction seat

Abstract

The utility model discloses a quick connection semitrailer traction seat, which relates to the technical field of semitrailer traction seats and comprises a traction seat and a traction disc, a connecting mechanism is arranged on the rear side of the bottom of the traction disc, and four buffer mechanisms are arranged on the top of the traction seat in a rectangular array. The top of the buffer mechanism is movably connected with the bottom of the traction disc, and a plurality of vertically-through mounting holes are formed in the top of the traction disc in an annular array mode. A bidirectional screw rod in the connecting mechanism is rotated, so that a clamping plate moves inwards, and connecting insertion rods at the left end and the right end are inserted into connecting holes through positioning holes for installation and connection, so that quick connection between the traction seat and the traction disc is realized, and the traction seat and the traction disc can be quickly connected under the buffering action of a buffering spring in the stress process. And the supporting rod moves up and down in the fixed pipe, so that the phenomenon that the traction seat collides with the traction disc can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a semitrailer fifth wheel, in particular to a quick-connect semitrailer fifth wheel. Background Art

[0002] A semi-trailer is a type of trailer, which is a heavy-duty transport vehicle connected to the semi-trailer head through a traction pin. Its large cargo capacity makes it an important part of highway freight transportation. In the actual use of the semi-trailer, it needs to be installed on the tractor, so a corresponding traction seat is required. The existing technology has the following problems:

[0003] Most of the existing trailers use pins to connect the main vehicle and the trailer compartment. Although this can connect the main vehicle and the trailer compartment, it is very inconvenient to connect and disconnect the main vehicle and the trailer compartment. Secondly, the traction plate and the traction shell of the traditional traction device of this type are difficult to buffer and protect, and collisions are prone to occur during use. Utility Model Content

[0004] The utility model provides a quick-connect semitrailer traction seat to solve the problems existing in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A quick-connect semitrailer traction seat comprises a traction seat and a traction disc, wherein a connecting mechanism is arranged at the rear side of the bottom of the traction disc, four buffer mechanisms are arranged in a rectangular array on the top of the traction seat, and the top of the buffer mechanism is movably connected to the bottom of the traction disc, and a plurality of installation holes that pass through from top to bottom are opened in a circular array on the top of the traction disc.

[0007] A further improvement of the technical solution of the utility model is that: the connecting mechanism includes a connecting plate, a mounting groove is opened on the front side of the connecting plate, a bidirectional screw is arranged inside the mounting groove, and the left side of the outer wall of the bidirectional screw penetrates to the left end of the connecting plate, the left end of the bidirectional screw is fixedly connected with a handle, the right end of the bidirectional screw is movably connected with a bearing, the left and right sides of the outer wall of the bidirectional screw are threadedly connected with threaded sleeves, the front ends of the two threaded sleeves are fixedly connected with clamping plates, the opposite surfaces of the two clamping plates are fixedly connected with connecting rods, the left and right sides of the rear end of the mounting groove are fixedly connected with U-shaped slides, and the rear ends of the two threaded sleeves are fixedly connected with sliders.

[0008] A further improvement of the technical solution of the utility model is that the right end of the bearing is fixedly connected to the inner wall of the mounting groove, and the outer wall of the sliding block is slidably connected to the inner wall of the U-shaped sliding plate.

[0009] A further improvement of the technical solution of the utility model is that a square tube is fixedly connected to the middle part of the lower end of the traction disk, and positioning holes with the same diameter as the connecting rod and penetrating from left to right are respectively opened at the left and right ends of the square tube.

[0010] A further improvement of the technical solution of the utility model is that the top of the connecting plate is fixedly connected to the rear side of the lower end of the traction disc, and the outer wall of the connecting rod and the interior of the positioning hole are arranged on the same horizontal plane.

[0011] A further improvement of the technical solution of the utility model is that a square sleeve with the same diameter as the inner wall of the square tube is fixedly connected to the middle of the upper end of the traction seat, connecting holes with the same diameter as the positioning hole are opened at the left and right ends of the square sleeve, and traction pins are fixedly connected to the left and right sides of the bottom of the traction seat.

[0012] A further improvement of the technical solution of the utility model is that: the buffer mechanism includes a U-shaped plate, a fixing tube is provided on the top of the U-shaped plate, the inner wall of the fixing tube is movably connected with a support rod, the outer wall of the support rod is sleeved with a buffer spring, mounting clamps are provided on the left and right sides of the top of the support rod, a latch is plugged into the left ends of the U-shaped plate and the two mounting clamps, and the latch passes through the right ends of the U-shaped plate and the two mounting clamps, a thread is provided on the right side of the outer wall of the latch, and a nut is threadedly connected to the outer wall of the thread.

[0013] A further improvement of the technical solution of the utility model is that the bottoms of the four U-shaped plates are fixedly connected to the top of the traction seat, and the tops of the eight mounting clamps are fixedly connected to the bottom of the traction disc.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a quick-connect semi-trailer traction seat, which adopts the cooperation between the traction seat, square sleeve, traction disc, square tube and connecting mechanism. By rotating the bidirectional screw in the connecting mechanism, the clamping plate is moved inward, so that the connecting rods at the left and right ends are inserted into the connecting holes through the positioning holes for installation and connection, thereby realizing the quick connection between the traction seat and the traction disc, solving the problem that most of the existing trailers realize the connection between the main vehicle and the trailer car body by pins, although it can play the role of connecting the main vehicle and the trailer car body, the connection and separation between the main vehicle and the trailer car body are very inconvenient, and achieves the beneficial effect of facilitating the quick connection of the semi-trailer traction seat.

[0016] 2. The utility model provides a quick-connect semi-trailer traction seat, which adopts a U-shaped plate, a fixed tube, a support rod, a buffer spring, a mounting card plate, a pin and a nut. The U-shaped plate is installed on the top of the traction seat, the mounting card plate is installed on the bottom of the traction disc, and the support rod and the interior of the fixed tube are respectively connected through the pin and the nut. In the process of being subjected to force, the support rod is made to move up and down in the interior of the fixed tube through the buffering effect of the buffer spring, thereby avoiding the collision between the traction seat and the traction disc, solving the problem that the traction plate and the traction shell part of the traditional traction device of this type are difficult to buffer and protect, and collision is easy to occur during use, thereby avoiding the collision between the traction seat and the traction disc and further protecting the traction seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the quick-connect semi-trailer traction seat of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the connection mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the traction disc of the utility model;

[0020] Figure 4 The three-dimensional structure diagram of the traction seat of the utility model is shown in FIG.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the buffer mechanism of the utility model.

[0022] In the figure: 1. traction seat; 11. square sleeve; 110. connecting hole; 12. traction pin; 2. traction plate; 21. square tube; 210. positioning hole; 3. connecting mechanism; 31. connecting plate; 310. mounting groove; 32. bidirectional screw; 33. handle; 34. bearing; 35. clamping plate; 36. connecting rod; 37. threaded sleeve; 371. slider; 38. U-shaped slide plate; 4. buffer mechanism; 41. U-shaped plate; 42. fixing tube; 43. support rod; 44. buffer spring; 45. mounting card plate; 46. latch; 47. nut; 5. mounting hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1As shown, the utility model provides a quick-connect semi-trailer traction seat, comprising a traction seat 1 and a traction disc 2, a connection mechanism 3 is arranged at the bottom rear side of the traction disc 2, four buffer mechanisms 4 are arranged in a rectangular array on the top of the traction seat 1, and the top of the buffer mechanism 4 is movably connected to the bottom of the traction disc 2, and a plurality of mounting holes 5 that pass through from top to bottom are opened in a circular array on the top of the traction disc 2;

[0025] A connecting mechanism 3 and a buffer mechanism 4 are provided, and the traction plate 2 is sleeved on the square sleeve 11 on the traction seat 1 through the square tube 21, and the bidirectional screw 32 in the connecting mechanism 3 is rotated so that the connecting rod 36 is inserted into the connecting hole 110 through the positioning hole 210 for connection, thereby realizing a quick connection, and the buffer spring 44 in the buffer mechanism 4 drives the support rod 43 to slide up and down inside the fixed tube 42, so as to protect the traction seat.

[0026] like Figure 2 As shown, the utility model provides a technical solution for a quick-connect semi-trailer traction seat: the connecting mechanism 3 includes a connecting plate 31, a mounting groove 310 is opened on the front of the connecting plate 31, a bidirectional screw 32 is arranged inside the mounting groove 310, and the left side of the outer wall of the bidirectional screw 32 penetrates to the left end of the connecting plate 31, the left end of the bidirectional screw 32 is fixedly connected to a handle 33, the right end of the bidirectional screw 32 is movably connected to a bearing 34, the left and right sides of the outer wall of the bidirectional screw 32 are both threadedly connected to threaded sleeves 37, and the front ends of the two threaded sleeves 37 are fixedly connected to clamping Plate 35, the opposite surfaces of the two clamping plates 35 are fixedly connected with connecting rods 36, and the clamping plates 35 can be moved inward and outward by rotating the bidirectional screw 32. The left and right sides of the rear end of the mounting groove 310 are fixedly connected with U-shaped slide plates 38, and the rear ends of the two threaded sleeve plates 37 are fixedly connected with sliders 371. The right end of the bearing 34 is fixedly connected to the inner wall of the mounting groove 310, and the outer wall of the slider 371 is slidably connected to the inner wall of the U-shaped slide plate 38. The slider 371 slides on the inner wall of the U-shaped slide plate 38, thereby limiting the movement of the clamping plate 35.

[0027] like Figure 3 As shown, the utility model provides a technical solution for a quick-connect semi-trailer traction seat: a square tube 21 is fixedly connected to the middle part of the lower end of the traction plate 2, and positioning holes 210 with the same diameter as the connecting rod 36 and passing through the left and right sides are respectively opened at the left and right ends of the square tube 21. The traction plate 2 can be installed on the traction seat 1 through the square tube 21 and the positioning hole 210, the top of the connecting plate 31 is fixedly connected to the rear side of the lower end of the traction plate 2, and the outer wall of the connecting rod 36 and the interior of the positioning hole 210 are arranged on the same horizontal plane.

[0028] like Figure 4As shown, the utility model provides a technical solution for a quick-connect semi-trailer traction seat: a square sleeve 11 with the same diameter as the inner wall of a square tube 21 is fixedly connected to the middle of the upper end of the traction seat 1, and connecting holes 110 with the same diameter as the positioning hole 210 are opened at the left and right ends of the square sleeve 11, and traction pins 12 are fixedly connected to the left and right sides of the bottom of the traction seat 1 respectively. Through the cooperation between the square sleeve 11 and the connecting hole 110, the traction seat 1 and the traction disc 2 can be installed.

[0029] like Figure 5 As shown, the utility model provides a technical solution for a quick-connect semi-trailer traction seat: the buffer mechanism 4 includes a U-shaped plate 41, a fixing tube 42 is arranged on the top of the U-shaped plate 41, a support rod 43 is movably connected to the inner wall of the fixing tube 42, a buffer spring 44 is sleeved on the outer wall of the support rod 43, mounting clamps 45 are arranged on the left and right sides of the top of the support rod 43, a latch 46 is inserted at the left end of the U-shaped plate 41 and the two mounting clamps 45, and the latch 46 penetrates to the right end of the U-shaped plate 41 and the two mounting clamps 45, a thread is arranged on the right side of the outer wall of the latch 46, a nut 47 is threadedly connected to the outer wall of the thread, the bottoms of the four U-shaped plates 41 are fixedly connected to the top of the traction seat 1, and the tops of the eight mounting clamps 45 are fixedly connected to the bottom of the traction disc 2. The fixing tube 42 and the support rod 43 are assembled and installed between the traction seat 1 and the traction disk 2 by means of the U-shaped plate 41, the mounting clamp plate 45, the latch 46 and the nut 47, and are buffered by the buffering elasticity of the buffer spring 44 to prevent collision between the traction seat 1 and the traction disk 2.

[0030] The working principle of this quick-connect semi-trailer fifth wheel is described in detail below.

[0031] like Figure 1-5As shown, when in use, first, the square tube 21 at the bottom of the traction plate 2 is sleeved on the outer wall of the square sleeve 11, and then the handle 33 is turned to drive the bidirectional screw 32 to rotate in the installation groove 310, so that the threaded sleeve 37 moves inward along the outer wall of the bidirectional screw 32. During the movement, the slider 371 slides inward along the inner wall of the U-shaped slide plate 38, thereby driving the clamping plates 35 on the left and right sides to move closer to the middle, so that the connecting rod 36 is inserted into the interior of the connecting hole 110 through the positioning hole 210, and the traction plate 2 is quickly connected with the traction plate. The seat 1 is installed and connected, and a plurality of pins 46 are inserted through the U-shaped plate 41 and the installation card plate 45 to the inside of the fixed tube 42 and the support rod 43, and then they are screwed together by nuts 47. When the traction seat 1 and the traction disk 2 are squeezed, the U-shaped plate 41, the installation card plate 45, and the pins 46 drive the fixed tube 42 and the support rod 43 to stretch, and then the buffering effect of the buffer spring 44 makes the support rod 43 move up and down inside the fixed tube 42, so that the traction seat 1 and the traction disk 2 can be avoided from colliding, thereby protecting the traction seat.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A quick-connect semitrailer fifth wheel, comprising a fifth wheel (1) and a towing disc (2), characterized in that: A connecting mechanism (3) is provided at the rear side of the bottom of the traction disc (2); four buffer mechanisms (4) are provided in a rectangular array on the top of the traction seat (1); the top of the buffer mechanism (4) is movably connected to the bottom of the traction disc (2); and a plurality of mounting holes (5) are provided in an annular array on the top of the traction disc (2) and are connected vertically.

2. The quick-connect semitrailer fifth wheel according to claim 1, characterized in that: The connecting mechanism (3) comprises a connecting plate (31), a mounting groove (310) is provided on the front side of the connecting plate (31), a bidirectional screw (32) is arranged inside the mounting groove (310), and the left side of the outer wall of the bidirectional screw (32) penetrates to the left end of the connecting plate (31), the left end of the bidirectional screw (32) is fixedly connected to a handle (33), the right end of the bidirectional screw (32) is movably connected to a bearing (34), the left and right sides of the outer wall of the bidirectional screw (32) are threadedly connected to threaded sleeves (37), the front ends of the two threaded sleeves (37) are fixedly connected to clamping plates (35), the opposite surfaces of the two clamping plates (35) are fixedly connected to connecting plug rods (36), the left and right sides of the rear end of the mounting groove (310) are fixedly connected to U-shaped slide plates (38), and the rear ends of the two threaded sleeves (37) are fixedly connected to sliders (371).

3. The quick-connect semitrailer fifth wheel according to claim 2, characterized in that: The right end of the bearing (34) is fixedly connected to the inner wall of the mounting groove (310), and the outer wall of the sliding block (371) is slidably connected to the inner wall of the U-shaped sliding block (38).

4. The quick-connect semitrailer fifth wheel according to claim 1, characterized in that: A square tube (21) is fixedly connected to the middle of the lower end of the traction plate (2), and positioning holes (210) with the same diameter as the connecting rod (36) and penetrating from left to right are respectively provided at the left and right ends of the square tube (21).

5. The quick-connect semitrailer fifth wheel according to claim 2, characterized in that: The top of the connecting plate (31) is fixedly connected to the rear side of the lower end of the traction disc (2), and the outer wall of the connecting plug rod (36) and the interior of the positioning hole (210) are arranged on the same horizontal plane.

6. The quick-connect semitrailer fifth wheel according to claim 1, characterized in that: A square sleeve (11) having the same diameter as the inner wall of the square tube (21) is fixedly connected to the middle of the upper end of the traction seat (1), and connection holes (110) having the same diameter as the positioning hole (210) are provided at the left and right ends of the square sleeve (11), and traction pins (12) are fixedly connected to the left and right sides of the bottom of the traction seat (1).

7. The quick-connect semitrailer fifth wheel according to claim 1, characterized in that: The buffer mechanism (4) comprises a U-shaped plate (41), a fixing tube (42) is arranged at the top of the U-shaped plate (41), a support rod (43) is movably connected to the inner wall of the fixing tube (42), a buffer spring (44) is sleeved on the outer wall of the support rod (43), mounting clamps (45) are arranged on the left and right sides of the top of the support rod (43), a latch (46) is inserted at the left ends of the U-shaped plate (41) and the two mounting clamps (45), and the latch (46) penetrates to the right ends of the U-shaped plate (41) and the two mounting clamps (45), a thread is arranged on the right side of the outer wall of the latch (46), and a nut (47) is threadedly connected to the outer wall of the thread.

8. The quick-connect semitrailer fifth wheel according to claim 7, characterized in that: The bottoms of the four U-shaped plates (41) are fixedly connected to the top of the traction seat (1), and the tops of the eight mounting clamping plates (45) are fixedly connected to the bottom of the traction disc (2).

Images