Fabricated semitrailer frame

Abstract

The utility model discloses an assembly type semitrailer frame, and relates to the technical field of semitrailer frames. The trolley comprises a trolley frame, two sets of symmetrically-distributed first sliding plates are arranged at the top end of the inner wall of the trolley frame, two symmetrically-distributed sliding rods are fixedly connected to the opposite sides of the two first sliding plates, and two symmetrically-distributed second sliding blocks are arranged on the sliding rods in a sliding mode; the clamping plates are moved to the two sides of goods needing to be fixed through the first sliding plate, the first sliding blocks and the first sliding grooves, then the air cylinders drive the push rods to move, and the second sliding blocks connected with the push rods slide on the sliding rods; and through connecting rods movably arranged on second fixing shafts at the bottom ends of the second sliding blocks and the two ends of the rotating blocks in a sleeving mode, the rotating blocks rotate, the connecting rods are matched to enable clamping plates connected to the bottom ends of the second sliding blocks to synchronously clamp and fix goods, and therefore the goods cannot move in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of semitrailer frames, in particular to an assembled semitrailer frame. Background Art

[0002] A semi-trailer is a trailer with the axle placed behind the center of gravity of the vehicle and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. It is generally a three-axle semi-trailer, which is divided into many types such as 11-meter warehouse semi-trailer, 13-meter warehouse semi-trailer, low-bed semi-trailer, etc. It is a heavy-duty transportation vehicle connected to the semi-trailer head through a traction pin. It is suitable for the transportation of bulk and scattered goods such as coal, ore, and building materials. The frame of the semi-trailer is usually made of aluminum alloy, which can enhance the service life and load-bearing capacity;

[0003] At present, most semi-trailer frames do not have specific devices for fixing goods. Usually, only ropes are used to simply fix the goods, and the fixing effect is poor. The goods will move due to driving on bumpy roads, which will cause damage to the goods. In addition, when loading and unloading goods, they are all carried by manpower, which is more troublesome, wastes a lot of manpower and material resources, and increases the workload of the staff. Utility Model Content

[0004] In order to solve the problem that goods are not easy to fix and loading and unloading goods during the transportation of goods by semi-trailer, the purpose of the utility model is to provide an assembled semi-trailer frame.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions: an assembled semi-trailer frame, comprising a frame, wherein two groups of symmetrically distributed first sliding plates are provided at the top of the inner wall of the frame, two symmetrically distributed sliding rods are fixedly connected to the opposite sides of the two first sliding plates, two symmetrically distributed second sliding blocks are slidably provided on the sliding rod, a clamping plate and a support block are fixedly connected to the bottom end of the second sliding block, the other end of the support block is fixedly connected to the clamping plate, the top of the first sliding plate is fixedly connected to the support plate, the opposite sides of the two support plates are fixedly connected to the first fixed block, the first fixed block is located above the sliding rod, a first fixed shaft is fixedly connected at the center of the bottom end of the first fixed block, the first fixed shaft is located at the center of the opposite sides of the two sliding rods, a rotating block is rotatably provided on the side of the first fixed shaft near the bottom end, the rotating block is located below the sliding rod, second fixed shafts are provided at both ends of the rotating block and at the center of the bottom end of the second sliding block, a connecting rod is provided between the second fixed shaft located at the bottom end of the second sliding block and the second fixed shaft located at one end of the rotating block, and the connecting rod is movably sleeved between the two second fixed shafts.

[0006] Preferably, a second slide groove is provided at the center of the bottom end of the frame, and a second sliding plate is slidably provided in the second slide groove.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. The utility model moves the clamping plate to the two sides of the goods to be fixed by the first sliding plate, the first slider and the first sliding groove, and then drives the push rod to move by the cylinder, so that the second slider connected to the push rod slides on the sliding rod. When the second slider moves, the connecting rod movably sleeved on the bottom end of the second slider and the second fixed shaft at both ends of the rotating block makes the rotating block rotate, and cooperates with the connecting rod to make the clamping plate connected to the bottom end of the second slider synchronously clamp and fix the goods, so that the goods will not move during transportation;

[0009] 2. The staff can put the goods to be loaded and unloaded on the second sliding plate, and push the second sliding plate to slide with the second slide groove to load and unload the goods, which reduces the workload and is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0013] Figure 3 This is a schematic diagram of the clamping and fixing structure of the utility model.

[0014] Figure 4 For this utility model Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0015] Figure 5 It is a schematic diagram of the sliding transport structure of the utility model.

[0016] In the figure: 1. frame; 2. first sliding plate; 21. first slider; 211. first slide groove; 22. support plate; 23. first fixed block; 24. first fixed axis; 25. rotating block; 26. second fixed axis; 27. connecting rod; 3. sliding rod; 31. second slider; 32. supporting block; 33. clamping plate; 34. cylinder; 341. push rod; 35. fixed sleeve; 4. switch door; 41. cylinder; 42. rotating shaft; 43. L-shaped rod; 5. buffer plate; 51. spring; 6. second sliding plate; 61. triangular block; 62. second slide groove; 7. semicircular block; 71. limit sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-5 As shown, the utility model provides an assembled semi-trailer frame, including a frame 1, wherein two groups of symmetrically distributed first sliding plates 2 are arranged at the top of the inner wall of the frame 1, two symmetrically distributed sliding rods 3 are fixedly connected to the opposite sides of the two first sliding plates 2, two symmetrically distributed second sliding blocks 31 are slidably arranged on the sliding rods 3, a clamping plate 33 and a support block 32 are fixedly connected to the bottom end of the second sliding block 31, the other end of the support block 32 is fixedly connected to the clamping plate 33, the top of the first sliding plate 2 is fixedly connected to the support plate 22, the opposite sides of the two support plates 22 are fixedly connected to the first fixed block 23, and the first fixed block 23 is located above the sliding rod 3, and a first fixed shaft 24 is fixedly connected at the center of the bottom end of the first fixed block 23. The first fixed shaft 24 is located at the center of the opposite sides of the two sliding rods 3. A rotating block 25 is rotatably provided on the side of the first fixed shaft 24 near the bottom end. The rotating block 25 is located below the sliding rod 3. Second fixed shafts 26 are provided at both ends of the rotating block 25 and at the center of the bottom end of the second sliding block 31. A connecting rod 27 is provided between the second fixed shaft 26 located at the bottom end of the second sliding block 31 and the second fixed shaft 26 located at one end of the rotating block 25, and the connecting rod 27 is movably sleeved between the two second fixed shafts 26.

[0019] A second slide groove 62 is provided at the center of the bottom end of the frame 1, and a second sliding plate 6 is slidably provided in the second slide groove 62; the staff can put the goods to be loaded and unloaded on the second sliding plate 6, and push the second sliding plate 6 to slide with the second slide groove 62 to load and unload the goods, thereby reducing the workload and being more convenient.

[0020] A fixing sleeve 35 is fixedly connected to one side of the bottom end of the first fixing block 23, and a cylinder 34 is fixedly arranged inside the fixing sleeve 35. A push rod 341 is connected to the output end of the cylinder 34, and the other end of the push rod 341 is fixedly connected to the second sliding block 31. The push rod 341 is driven to move by the cylinder 34, so that the second sliding block 31 connected to the push rod 341 moves.

[0021] A first slide groove 211 is provided at the top of the inner part of the frame 1, and a first slider 21 is fixedly provided on the first sliding plate 2. The first slider 21 is slidably arranged in the first slide groove 211; so that the first sliding plate 2 can move, driving the sliding rod 3 connected to the first sliding plate 2 to move together, and the first slide groove 211 plays a limiting role.

[0022] The bottom end of the second sliding plate 6 is located in the second slide groove 62 and is fixedly connected with triangular blocks 61 on both sides; when the second sliding plate 6 slides, the triangular blocks 61 on both sides can simply clean the second slide groove 62 to prevent the second sliding plate 6 from being obstructed during movement.

[0023] Three groups of symmetrically distributed buffer plates 5 are provided at the bottom of the frame 1, and the buffer plates 5 are connected to the bottom of the frame 1 through springs 51, so that the entire frame 1 has a buffer when encountering a bumpy road section during the driving of the semi-trailer, thereby preventing the entire frame 1 from being damaged by too large a bumpy amplitude.

[0024] Two symmetrically distributed cylinders 41 are provided on the side of one end of the frame 1, and a rotating shaft 42 is rotated through the cylinder 41. L-shaped rods 43 are fixedly connected to the sides of both ends of the rotating shaft 42. Two symmetrically distributed switch doors 4 are opened at one end of the frame 1 close to the cylinder 41, and the other end of the L-shaped rod 43 is fixedly connected to the switch door 4; semicircular blocks 7 are fixedly provided on the ends of the two switch doors 4 away from the cylinder 41, and limiting sleeves 71 are sleeved on the two semicircular blocks 7. A square that fits the center of the semicircular block 7 is provided in the limiting sleeve 71; when it is necessary to load and unload goods, the limiting sleeve 71 can be rotated to a suitable angle and taken out of the semicircular block 7, and then the switch door 4 can be opened in conjunction with the rotating shaft 42 so that the goods can be loaded and unloaded. When it is necessary to close the switch door 4, the switch door 4 is closed, and then the limiting sleeve 71 is sleeved on the semicircular block 7, and the limiting sleeve 71 is rotated to fix the semicircular block 7, so that the switch door 4 will not be opened during driving.

[0025] Working principle: When the semi-trailer needs to be loaded, the limiting sleeve 71 is taken out from the semicircular block 7, the switch door 4 is opened, and then the second sliding plate 6 is moved close to the switch door 4. The staff puts the goods on the second sliding plate 6 and pushes the goods into the frame 1 with the help of the second slide groove 62. Repeat the operation until the loading of the goods is completed;

[0026] The first and second slide blocks 31 are moved to the sides of the cargo to be fixed by the first sliding plate 2, the first slider 21 and the first sliding groove 211, and the push rod 341 is driven to move by the cylinder 34, so that the second slider 31 connected to the push rod 341 slides on the sliding rod 3. When the second slider 31 moves, the connecting rod 27 movably sleeved on the second fixed shaft 26 at the bottom end of the second slider 31 and the two ends of the rotating block 25 makes the rotating block 25 rotate, and the connecting rod 27 makes the clamping plate 33 connected to the bottom end of the second slider 31 clamp and fix the cargo synchronously, so that the cargo will not move during transportation. At the same time, the spring 51 and the buffer plate 5 connected to the bottom end of the frame 1 make the frame 1 have a buffering effect on the bumpy road section, thereby ensuring the safety of the cargo. After the clamping and fixing is completed, the switch door 4 is closed, and the limit sleeve 71 is sleeved on the semicircular block 7, so that the switch door 4 is closed firmly, ensuring that the switch door 4 will not be opened during driving of the semi-trailer.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An assembled semi-trailer frame, comprising a frame (1), characterized in that: Two groups of symmetrically distributed first sliding plates (2) are provided at the top of the inner wall of the frame (1); two symmetrically distributed sliding rods (3) are fixedly connected to the opposite sides of the two first sliding plates (2); two symmetrically distributed second sliding blocks (31) are slidably provided on the sliding rods (3); the bottom ends of the second sliding blocks (31) are fixedly connected to a clamping plate (33) and a support block (32); the other end of the support block (32) is fixedly connected to the clamping plate (33); the top end of the first sliding plate (2) is fixedly connected to a support plate (22); the opposite sides of the two support plates (22) are fixedly connected to a first fixed block (23); the first fixed block (23) is located above the sliding rod (3); A first fixed shaft (24) is fixedly connected at the center of the bottom end of a fixed block (23), the first fixed shaft (24) is located at the center of the opposite side of the two sliding rods (3), a rotating block (25) is rotatably provided on the side of the first fixed shaft (24) close to the bottom end, the rotating block (25) is located below the sliding rod (3), second fixed shafts (26) are provided at both ends of the rotating block (25) and at the center of the bottom end of the second sliding block (31), a connecting rod (27) is provided between the second fixed shaft (26) located at the bottom end of the second sliding block (31) and the second fixed shaft (26) located at one end of the rotating block (25), and the connecting rod (27) is movably sleeved between the two second fixed shafts (26).

2. The assembled semi-trailer frame according to claim 1, characterized in that: A second sliding groove (62) is provided at the center of the bottom end of the frame (1), and a second sliding plate (6) is slidably provided in the second sliding groove (62).

3. The assembled semi-trailer frame according to claim 1, characterized in that: A fixing sleeve (35) is fixedly connected to one side of the bottom end of the first fixing block (23), a cylinder (34) is fixedly arranged inside the fixing sleeve (35), a push rod (341) is connected to the output end of the cylinder (34), and the other end of the push rod (341) is fixedly connected to the second sliding block (31).

4. The assembled semi-trailer frame according to claim 1, characterized in that: A first sliding groove (211) is provided at the top end of the interior of the vehicle frame (1); a first sliding block (21) is fixedly provided on the first sliding plate (2); and the first sliding block (21) is slidably disposed in the first sliding groove (211).

5. The assembled semi-trailer frame according to claim 2, characterized in that: The bottom end of the second sliding plate (6) is located in the second sliding groove (62) and is fixedly connected to triangular blocks (61) on both sides.

6. The assembled semi-trailer frame according to claim 2, characterized in that: The bottom end of the vehicle frame (1) is provided with three groups of symmetrically distributed buffer plates (5), and the buffer plates (5) are connected to the bottom end of the vehicle frame (1) via springs (51).

7. The assembled semi-trailer frame according to claim 1, characterized in that: Two symmetrically distributed cylinders (41) are provided on the side surface of one end of the frame (1); a rotating shaft (42) is rotatably inserted into the cylinder (41); L-shaped rods (43) are fixedly connected to the sides of both ends of the rotating shaft (42); two symmetrically distributed switch doors (4) are provided on one end of the frame (1) close to the cylinder (41); the other end of the L-shaped rod (43) is fixedly connected to the switch door (4).

8. The assembled semi-trailer frame according to claim 7, characterized in that: A semicircular block (7) is fixedly provided at one end of the two switch doors (4) away from the cylinder (41), and a limiting sleeve (71) is sleeved on the two semicircular blocks (7), and a square block that fits in the center of the semicircular block (7) is provided in the limiting sleeve (71).

Images