Semitrailer frame

Abstract

The utility model discloses a semitrailer frame which comprises a base and a baffle, a rectangular sleeve is connected to the base, a supporting plate is connected in the rectangular sleeve in an up-down sliding mode, top seats are hinged to the two sides of the upper portion of the supporting plate, base plates are connected to the two sides of the upper portion of the base, and the corresponding top seats are supported through the base plates. A buffer plate is further connected to the upper portion of the base in a sliding mode, a set of limiting rods are connected between the buffer plate and the baffle, a transmission mechanism is connected to the buffer plate, and when the buffer plate moves, the buffer plate drives the supporting plate to move upwards through the transmission mechanism. The buffering device has the advantages that when a truck is loaded and suddenly braked, due to the fact that inertia is too large, the limiting rod and the limiting plate can be thrust off, the buffering plate is made to move forwards, the buffering plate drives the supporting plate to be suddenly jacked upwards through the transmission mechanism, and therefore cargoes fly to the upper portions of the two sides, casualties caused by the fact that the cargoes impact a cab are prevented, and the safety of a truck frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a semi-trailer frame. Background Art

[0002] The trailers we see daily are categorized as semi-trailers and full trailers. A semi-trailer has its axle positioned behind the vehicle's center of gravity and is equipped with a hitch that transmits horizontal or vertical forces to the tractor. When a semi-trailer brakes suddenly, the cargo on the frame can impact the cab due to inertia, damaging it and potentially injuring or killing the driver.

[0003] The cam is fixedly mounted on one side of the base and has a support frame, the support frame being fixedly mounted on one side of the base away from the support frame, the support frame being fixedly mounted on one side of the base and away from the support frame, the support frame being arranged on a support ring at one side of the outer wall of the support frame, the support ring being fixedly mounted on one side of the support block, the mounting block being fixedly mounted on one side of the mounting block away from the support ring, a top seat being fixedly mounted on one side of the top seat away from the mounting block, a baffle being fixedly mounted on one side of the baffle close to the top seat, a rotating rod being provided on both sides of the rotating rod away from the support plate, buffer plates being provided on one side of the buffer plate away from the rotating rod, a hinge being provided on one side of the top seat close to the buffer rod, a side plate being provided on the side of the hinge away from the top seat, a connecting rod being rotatably connected to the side of the side plate close to the base, a bearing being fixedly mounted on one end of the connecting rod away from the side plate, and the buffer rod being fixedly connected to the inner wall of the bearing. Although the semi-trailer disperses the cargo space to both sides of the frame through symmetrically installed top seats, thereby minimizing the risk of the cargo carried on the frame impacting the cab due to inertia and causing casualties to the driver when the truck brakes suddenly, when the inertia of the cargo is too large, simply dispersing the cargo to both sides cannot eliminate the inertia of the cargo. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a semi-trailer frame.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A semi-trailer frame includes a base and a baffle, a rectangular sleeve is connected to the base, a support plate is connected to the rectangular sleeve for sliding up and down, top seats are hinged on both sides above the support plate, pads are connected to both sides above the base, the corresponding top seats are supported by the pads, a buffer plate is also slidably connected above the base, a group of limit rods are connected between the buffer plate and the baffle, and a transmission mechanism is connected to the buffer plate. When the buffer plate moves, the buffer plate drives the support plate to move upward through the transmission mechanism.

[0007] Preferably, a first sliding groove is provided on the upper side of the base, a through groove is provided at the bottom of the first sliding groove, a sliding plate is provided in the first sliding groove, and the support plate is connected to the upper side of the sliding plate.

[0008] Preferably, a second sliding groove is provided on the upper side of the base, a sliding block is slidably connected in the second sliding groove, and the buffer plate is connected to the upper side of the sliding block.

[0009] Preferably, a first push block is slidably connected in the first sliding groove, and a side surface of the sliding plate facing the first push block is an inclined surface, and the sliding plate can be pushed upward by the first push block.

[0010] Preferably, the transmission mechanism includes a sliding rod, one end of the sliding rod is connected to the buffer plate, the other end of the sliding rod passes through the baffle, and the second push block is connected to the end of the sliding rod, the second push block and the third push block are cooperated with each other, a fixed rod is connected to the lower side of the third push block, the fixed rod is inserted into the first guide sleeve, the first guide sleeve is connected to the base, the fourth push block is connected to the lower end of the fixed rod, the fourth push block and the fifth push block are cooperated with each other, the second push block is connected to the guide rod, the guide rod is inserted into the second guide sleeve, the guide sleeve is connected to the lower side of the base, the vertical rod is connected to the guide rod, the vertical rod passes through the through slot upward, and is connected to the first push block at the upper end of the vertical rod.

[0011] Preferably, a punching limit plate is connected to the sliding rod.

[0012] The advantage of the present invention is that when a semi-trailer frame provided by the present invention brakes suddenly due to a loaded truck, the limit rod and the limit plate will be broken due to excessive inertia, so that the buffer plate moves forward, and the buffer plate drives the support plate to suddenly push up through the transmission mechanism, so that the cargo flies to both sides and upwards, preventing the cargo from impacting the cab and causing casualties to the driver, thereby improving the safety of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the principle structure of a semi-trailer frame provided by the utility model;

[0014] Figure 2 It is a top view of the frame;

[0015] Figure 3 It is a cross-sectional view of the frame. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] 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 to 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 device or element referred to 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.

[0018] like Figure 1 As shown, the utility model provides a semi-trailer frame, including a base 1 and a baffle 6, a rectangular sleeve 2 is connected to the base 1, and a support plate 3 is connected by sliding up and down in the rectangular sleeve 2, and the support plate 3 is limited front and rear by the rectangular sleeve 2 so that the support plate 3 can only move upward, and a row of hinges are hinged to the top seat 4 on both sides above the support plate 3. When the support plate 3 moves upward, the adjacent sides of the two top seats 4 will be driven to move upward, so that the two top seats 4 are in an inverted V shape, so that the cargo on the top seat 4 is lifted up to both sides, preventing the cargo from directly impacting the cab, and the sudden upward movement of the support plate 3 will also provide an upward force to the cargo, further buffering the impact caused by inertia.

[0019] like Figure 2 As shown, pads 5 are connected to both sides above the base 1, and the corresponding top seat 4 is supported by the pads 5 so that the upper side of the top seat 4 is flush with the upper side of the support plate 3, which is convenient for placing goods.

[0020] like Figure 3 As shown, a second sliding groove 1.4 is provided on the upper side of the base 1, and a sliding block 1.5 is slidably connected in the second sliding groove 1.4. A buffer plate 7 is connected on the upper side of the sliding block 1.5, so that the buffer plate 7 can slide above the base 1, and a group of breaking limit rods 8 are connected between the buffer plate 7 and the baffle 6. When the truck brakes suddenly, once the inertia of the cargo is too large, the breaking limit rods 8 will be broken, causing the buffer plate 7 to move forward.

[0021] A first sliding groove 1.1 is provided on the upper side of the base 1, a through groove 1.2 is provided at the bottom of the first sliding groove 1.1, a sliding plate 1.3 is provided in the first sliding groove 1.1, a support plate 3 is connected to the upper side of the sliding plate 1.3, and a first push block 9 is slidably connected in the first sliding groove 1.1, and the side surface of the sliding plate 1.3 facing the first push block 9 is an inclined surface. The sliding plate 1.3 is pushed by the first push block 9 to move the sliding plate 1.3 upward.

[0022] The buffer plate 7 is connected to a transmission mechanism. When the buffer plate 7 moves, the buffer plate 7 drives the support plate 3 to move upward through the transmission mechanism.

[0023] The transmission mechanism includes a sliding rod 10, one end of the sliding rod 10 is connected to the buffer plate 7, and the other end of the sliding rod 10 passes through the baffle 6, that is, a through hole is provided on the baffle 6, and the sliding rod 10 passes through the through hole. The sliding rod 10 is connected to the breaking limit plate 20, and the sliding rod 10 can be limited by the breaking limit plate 20. Only when the cargo impacts the buffer plate 7, the buffer plate 7 will break the limit plate 20, and the sliding rod 10 can move forward.

[0024] The second push block 11 is connected to the end of the sliding rod 10, and the second push block 11 is cooperated with the third push block 12. The fixing rod 13 is connected to the lower side of the third push block 12, and the fixing rod 13 is inserted into the first guide sleeve 14. The first guide sleeve 14 is connected to the base 1, and the fourth push block 15 is connected to the lower end of the fixing rod 13. The fourth push block 15 is cooperated with the fifth push block 16. The second push block 16 is connected to the guide rod 17, and the guide rod 17 is inserted into the second guide sleeve 18. The guide sleeve 18 is connected to the lower side of the base 1, and the vertical rod 19 is connected to the guide rod 17. The vertical rod 19 passes through the through groove 1.2 upward, and the first push block 9 is connected to the upper end of the vertical rod 19. It moves toward the sliding plate 1.3 through the first push block 9, and pushes the sliding plate 1.3 upward. The sliding plate 1.3 drives the support plate 3 to move upward, and then pushes the support plate 3 and the goods on the top seat 4 to both sides upward.

[0025] When the truck is loaded and brakes suddenly, the cargo will hit the buffer plate 7 due to excessive inertia, and the buffer plate 7 will break the limit rod 8 and the limit plate 20, so that the buffer plate 7 can move forward. The buffer plate 7 drives the support plate 3 to suddenly push up through the transmission mechanism, and when the support plate 3 moves upward, it will form an inverted V shape with the top seats 4 on both sides, so that the cargo will be thrown to the upper sides to prevent the cargo from hitting the cab and causing casualties to the driver, thereby improving the safety of the frame.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-trailer frame, comprising a base (1) and a baffle (6), characterized in that: A rectangular sleeve (2) is connected to the base (1), and a support plate (3) is connected to the rectangular sleeve (2) by sliding up and down. Top seats (4) are hinged on both sides above the support plate (3). Pads (5) are connected to both sides above the base (1), and the corresponding top seats (4) are supported by the pads (5). A buffer plate (7) is also slidably connected above the base (1), and a group of punching limit rods (8) are connected between the buffer plate (7) and the baffle (6). A transmission mechanism is connected to the buffer plate (7). When the buffer plate (7) moves, the buffer plate (7) drives the support plate (3) to move upward through the transmission mechanism.

2. A semi-trailer frame according to claim 1, characterized in that: A first sliding groove (1.1) is provided on the upper side of the base (1), a through groove (1.2) is provided at the bottom of the first sliding groove (1.1), a sliding plate (1.3) is provided in the first sliding groove (1.1), and the support plate (3) is connected to the upper side of the sliding plate (1.3).

3. The semi-trailer frame according to claim 1, characterized in that: A second sliding groove (1.4) is provided on the upper side of the base (1), a sliding block (1.5) is slidably connected in the second sliding groove (1.4), and the buffer plate (7) is connected to the upper side of the sliding block (1.5).

4. A semi-trailer frame according to claim 2, characterized in that: A first push block (9) is slidably connected in the first sliding groove (1.1); a side surface of the sliding plate (1.3) facing the first push block (9) is an inclined surface; the sliding plate (1.3) is pushed by the first push block (9), so that the sliding plate (1.3) can be moved upward.

5. A semi-trailer frame according to claim 4, characterized in that: The transmission mechanism includes a sliding rod (10), one end of the sliding rod (10) is connected to the buffer plate (7), the other end of the sliding rod (10) passes through the baffle (6), the end of the sliding rod (10) is connected to the second push block (11), the second push block (11) is matched with the third push block (12), the lower side of the third push block (12) is connected to the fixing rod (13), the fixing rod (13) is plugged into the first guide sleeve (14), and the first guide sleeve (14) is connected to the base (1). The fourth push block (15) is connected to the lower end of the fixed rod (13), the fourth push block (15) is matched with the fifth push block (16), the second push block (11) is connected to the guide rod (17), the guide rod (17) is plugged into the second guide sleeve (18), the guide sleeve (18) is connected to the lower side of the base (1), the vertical rod (19) is connected to the guide rod (17), the vertical rod (19) passes through the through slot (1.2) upward, and the first push block (9) is connected to the upper end of the vertical rod (19).

6. The semi-trailer frame according to claim 5, characterized in that: A punching limit plate (20) is connected to the sliding rod (10).

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