Novel truck stopper

Abstract

The utility model discloses a novel truck stopper, which belongs to the technical field of stoppers and comprises a fixed seat, a lifting frame slidably connected in the fixed seat, a tension spring component arranged between the lifting frame and the fixed seat, a rotary arm rod rotatably connected on the lifting frame, a limit hook and a driven fluted disc fixedly connected on the circumferential surface of the rotary arm rod, the limiting hook is located in the lifting frame, the lifting frame is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a fluted disc torsion limiter; the lifting frame ascends and descends through accumulated force of the tension spring assembly in the fixing base, so that the limiting hook can correspond to the tail of a truck with a low chassis, the limiting hook is controlled by the driving motor to rotate, the tail of the truck is hooked and limited, and the tail of the truck stably corresponds to the loading and unloading platform. According to the whole truck stopper, the angle and the position of the limiting hook are adjusted in a lifting mode and a rotating mode, the limiting range is greatly enlarged, and trucks with different tail heights can be fixed within a larger range.

Description

Technical Field

[0001] The utility model relates to the technical field of restraints, and more specifically to a novel restraint for trucks. Background Art

[0002] Truck restraints are commonly used in the logistics industry. They are installed on loading and unloading platforms to connect the truck to the platform and ensure the stability of the truck during loading and unloading. Common types include lifting type and swing arm type, both of which use a limit hook to hook the rear of the truck for connection.

[0003] At present, with the rapid development of the transportation industry, the types of trucks are gradually increasing. The height of the rear of different types of trucks from the ground will have certain differences. However, the operating range of the limit hook of most existing truck restraints is limited, and it is difficult to increase the restriction range. Only a small number of vehicles can be connected and restricted. For this reason, the utility model proposes a new type of truck restraint. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a new type of truck restraint, aiming to solve the problem that the operating range of the limit hook of most truck restraints in the prior art is limited, it is difficult to increase the restriction range, and only a small number of vehicles can be connected and restricted.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A new type of truck restraint comprises a fixed seat, a lifting frame is slidably connected inside the fixed seat, a tension spring assembly is arranged between the lifting frame and the fixed seat, a swing arm rod is rotatably connected to the lifting frame, a limit hook and a driven gear plate are fixedly connected to the circumferential surface of the swing arm rod, and the limit hook is located inside the lifting frame, a driving motor is fixedly connected to the lifting frame, and a gear plate torque limiter is fixedly connected to the output end of the driving motor, a transmission chain is transmission-connected between the gear plate torque limiter and the driven gear plate, and a sensing mechanism is arranged between the lifting frame and the swing arm rod, and the sensing mechanism is used to control the rotation angle of the swing arm rod.

[0009] As a preferred solution of the utility model, the sensing mechanism includes a sensor assembly, a fixing sleeve, an annular groove, a sensing block and a positioning bolt. The sensor assembly is fixedly connected to the lifting frame, the fixing sleeve is fixedly connected to the circumferential surface of the swing arm rod and corresponds to the sensor assembly, the annular groove is drilled on the fixing sleeve, the sensing block is slidably connected in the annular groove, the positioning bolt is threadedly connected to the sensing block, and one end of the positioning bolt corresponds to the annular groove.

[0010] As a preferred embodiment of the present utility model, one end of the positioning bolt is rotatably connected with a friction block, and the friction block corresponds to the annular groove.

[0011] As a preferred embodiment of the present utility model, a bearing sleeve is fixedly connected to the lifting frame, and the swing arm rod is rotatably connected within the bearing sleeve.

[0012] As a preferred embodiment of the present utility model, a support plate is fixedly connected to the lifting frame, and the swing arm rod is rotatably connected within the support plate.

[0013] As a preferred embodiment of the present utility model, a pulley is rotatably connected to the lifting frame, and the pulley is slidably connected within the fixed seat.

[0014] As a preferred embodiment of the present utility model, one end of the lifting frame away from the fixed seat is movably hinged with a grounding guide rod through a hinge shaft, and the grounding guide rod is located on one side of the limit hook.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] 1) In this solution, the lifting frame is lifted and lowered by the pulling spring assembly within the fixed seat, so that the limit hook can correspond to the tail of the truck with a lower chassis. The limit hook is controlled to rotate by the driving motor, and the anti-collision tail rod at the tail of the truck is hooked and restricted, so that the tail of the truck is stably corresponding to the loading and unloading platform. The entire truck limiter adjusts the angle and position of the limit hook by using two methods of lifting and rotation, greatly increasing the limiting range and enabling the fixation of trucks with different tail heights within a larger range.

[0018] 2) In this solution, the rotation time of the limit hook can be set through the induction mechanism, so that the limit hook can adjust the rotation angle to meet different usage situations. When the rotation angle of the limit hook is too large, the rotation angle of the limit hook can be protected against overload by the tooth disc torque limiter, effectively avoiding damage to the equipment and the vehicle. Description of the drawings

[0019] Figure 1 It is the front view of the present utility model;

[0020] Figure 2 It is the three-dimensional view of the present utility model;

[0021] Figure 3 It is the exploded view of the present utility model;

[0022] Figure 4 It is the three-dimensional view of part of the structure of the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. Fixed seat; 2. Lifting frame; 3. Tension spring assembly; 4. Swing arm rod; 5. Limit hook; 6. Driven sprocket; 7. Driving motor; 8. Sprocket torque limiter; 9. Transmission chain; 10. Induction mechanism; 101. Inductor assembly; 102. Fixed sleeve; 103. Annular groove; 104. Induction block; 105. Positioning bolt; 11. Friction block; 12. Bearing sleeve; 13. Support plate; 14. Pulley; 15. Grounding guide rod. Specific embodiments

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figures 1-4A new type of truck restraint comprises a fixed seat 1, a lifting frame 2 is slidably connected inside the fixed seat 1, a tension spring assembly 3 is arranged between the lifting frame 2 and the fixed seat 1, a swing arm rod 4 is rotatably connected to the lifting frame 2, a limit hook 5 and a driven gear plate 6 are fixedly connected to the circumferential surface of the swing arm rod 4, and the limit hook 5 is located in the lifting frame 2, a driving motor 7 is fixedly connected to the lifting frame 2, and a gear plate torque limiter 8 is fixedly connected to the output end of the driving motor 7, a transmission chain 9 is transmission-connected between the gear plate torque limiter 8 and the driven gear plate 6, and a sensing mechanism 10 is arranged between the lifting frame 2 and the swing arm rod 4, and the sensing mechanism 10 is used to control the rotation angle of the swing arm rod 4.

[0030] In this embodiment, the rotation time of the limit hook 5 can be set by the sensing mechanism 10, so that the limit hook 5 stops after reaching a suitable rotation angle. The fixing seat 1 is installed on the loading and unloading platform. When the rear end of the truck is close to the loading and unloading platform and the height of the rear end from the ground is low, the rear end of the truck first contacts the lifting frame 2, and the lifting frame 2 is pressed down by the rear end of the truck. The tension spring assembly 3 pulls the lifting frame 2 so that the lifting frame 2 always corresponds to the rear end of the truck. Then, the driving motor 7 controls the gear disk torque limiter 8 to rotate, and the gear disk torque limiter 8 rotates the driven gear disk 6 through the transmission chain 9, and the driven gear disk 6 drives the swing arm rod 4 to rotate, so that The limit hook 5 is rotated to contact the rear end of the truck. The limit hook 5 is resisted by the rear end of the truck. The geared disc torque limiter 8 limits the limit hook 5 from continuing to rotate in the form of slipping, thereby protecting the limit hook 5 from overload and preventing the drive motor 7 and the limit hook 5 from being damaged. After the limit hook 5 rotates to the set rotation time, the sensing mechanism 10 controls the limit hook 5 to stop, thereby hooking the anti-collision tail rod at the rear end of the truck for restriction. When the height of the rear end of the truck is located on the upper side of the lifting frame 2, the drive motor 7 is directly started to rotate the limit hook 5. The limit hook 5 rotates to a certain angle to hook the anti-collision tail rod at the rear end of the truck for restriction.

[0031] Specifically, the sensing mechanism 10 includes a sensor assembly 101, a fixing sleeve 102, an annular groove 103, a sensing block 104 and a positioning bolt 105. The sensor assembly 101 is fixedly connected to the lifting frame 2, the fixing sleeve 102 is fixedly connected to the circumferential surface of the swing arm rod 4 and corresponds to the sensor assembly 101, the annular groove 103 is excavated on the fixing sleeve 102, the sensing block 104 is slidably connected in the annular groove 103, the positioning bolt 105 is threadedly connected to the sensing block 104, and one end of the positioning bolt 105 corresponds to the annular groove 103.

[0032] In this embodiment, during the process of the swing arm rod 4 driving the limit hook 5 to rotate, the fixed sleeve 102 will be driven to rotate. The fixed sleeve 102 drives the induction block 104 to rotate. When the induction block 104 rotates to correspond to the inductor assembly 101, the limit hook 5 reaches the set rotation time, and the drive motor 7 stops running. Among them, the induction block 104 can adjust its position on the fixed sleeve 102 through the annular groove 103. After the adjustment of the induction block 104 is completed, it is fixed by contacting the inner wall of the annular groove 103 through the rotation positioning bolt 105, thereby changing the detection time of the inductor assembly 101 and adjusting the rotation angle of the limit hook 5.

[0033] Specifically, one end of the positioning bolt 105 is rotatably connected with a friction block 11, and the friction block 11 corresponds to the annular groove 103.

[0034] In this embodiment, when the positioning bolt 105 rotates, it drives the friction block 11 to move. By contacting the inner wall of the annular groove 103 through the friction block 11, the friction force can be increased, further improving the stability of the induction block 104.

[0035] Specifically, a bearing sleeve 12 is fixedly connected to the lifting frame 2, and the swing arm rod 4 is rotatably connected within the bearing sleeve 12.

[0036] In this embodiment, the bearing sleeve 12 reduces the friction force when the swing arm rod 4 rotates, making the rotation of the swing arm rod 4 on the lifting frame 2 more convenient.

[0037] Specifically, a support plate 13 is fixedly connected to the lifting frame 2, and the swing arm rod 4 is rotatably connected within the support plate 13.

[0038] In this embodiment, the support plate 13 is used to support the swing arm rod 4, enabling the swing arm rod 4 to further maintain the stability of rotation.

[0039] Specifically, a pulley 14 is rotatably connected to the lifting frame 2, and the pulley 14 is slidably connected within the fixed seat 1.

[0040] In this embodiment, the lifting frame 2 slides within the fixed seat 1 through the pulley 14, and the pulley 14 makes the sliding of the lifting frame 2 smoother.

[0041] Specifically, one end of the lifting frame 2 away from the fixed seat 1 is movably hinged with a grounding guide rod 15 through a hinge shaft, and the grounding guide rod 15 is located on one side of the limit hook 5.

[0042] In this embodiment, when the rear of the vehicle presses down the lifting frame 2, the grounding guide rod 15 bends and contacts the ground. The grounding guide rod 15 is common knowledge for those skilled in the art, and will not be elaborated too much in this utility model.

[0043] Working principle: The fixed seat 1 is installed on the loading and unloading platform. The sensing block 104 adjusts its position on the fixed sleeve 102 through the annular groove 103. After the adjustment of the sensing block 104 is completed, it is fixed by contacting the inner wall of the annular groove 103 by rotating the positioning bolt 105, thereby changing the detection time of the sensor assembly 101. When the height of the rear of the truck from the ground is relatively low near the rear of the loading and unloading platform, the rear of the truck first contacts the lifting frame 2. The lifting frame 2 is pressed down by the rear of the truck, and the tension spring assembly 3 pulls the lifting frame 2 to make the lifting frame 2 always correspond to the rear of the truck. Then, the driving motor 7 controls the rotation of the gear disc torque limiter 8. The gear disc torque limiter 8 drives the driven gear disc 6 to rotate through the transmission chain 9. The driven gear disc 6 drives the swing arm rod 4 to rotate, thereby causing the limit hook 5 to rotate and contact the rear of the truck. The limit hook 5 is resisted by the rear of the truck, and the gear disc torque limiter 8 limits the continuous rotation of the limit hook 5 in the form of slipping to protect the limit hook 5 from overload. During the process of driving the limit hook 5 to rotate, the swing arm rod 4 will drive the fixed sleeve 102 to rotate. The fixed sleeve 102 drives the sensing block 104 to rotate. When the sensing block 104 rotates to correspond to the sensor assembly 101, the limit hook 5 reaches the set rotation time, and the driving motor 7 stops rotating. The limit hook 5 hooks and restricts the anti-collision tail rod of the rear of the truck. When the height of the rear of the truck is above the lifting frame 2, the driving motor 7 is directly started to make the limit hook 5 rotate. The limit hook 5 rotates to a certain angle to hook and restrict the anti-collision tail rod of the rear of the truck.

[0044] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A novel truck restraint, comprising a fixing seat (1), characterized in that: A lifting frame (2) is slidably connected inside the fixed seat (1), a tension spring assembly (3) is arranged between the lifting frame (2) and the fixed seat (1), a swing arm rod (4) is rotatably connected to the lifting frame (2), a limit hook (5) and a driven gear disc (6) are fixedly connected to the circumferential surface of the swing arm rod (4), and the limit hook (5) is located inside the lifting frame (2), a driving motor (7) is fixedly connected to the lifting frame (2), and a gear disc torque limiter (8) is fixedly connected to the output end of the driving motor (7), a transmission chain (9) is transmission-connected between the gear disc torque limiter (8) and the driven gear disc (6), and a sensing mechanism (10) is arranged between the lifting frame (2) and the swing arm rod (4), and the sensing mechanism (10) is used to control the rotation angle of the swing arm rod (4).

2. A new type of truck restraint according to claim 1, characterized in that: The sensing mechanism (10) comprises a sensor assembly (101), a fixing sleeve (102), an annular groove (103), a sensing block (104) and a positioning bolt (105); the sensor assembly (101) is fixedly connected to the lifting frame (2); the fixing sleeve (102) is fixedly connected to the circumferential surface of the swing arm rod (4) and corresponds to the sensor assembly (101); the annular groove (103) is excavated on the fixing sleeve (102); the sensing block (104) is slidably connected to the annular groove (103); the positioning bolt (105) is threadedly connected to the sensing block (104), and one end of the positioning bolt (105) corresponds to the annular groove (103).

3. A new type of truck restraint according to claim 2, characterized in that: One end of the positioning bolt (105) is rotatably connected to a friction block (11), and the friction block (11) corresponds to the annular groove (103).

4. A new type of truck restraint according to claim 3, characterized in that: A bearing sleeve (12) is fixedly connected to the lifting frame (2), and the swing arm rod (4) is rotatably connected inside the bearing sleeve (12).

5. A new type of truck restraint according to claim 4, characterized in that: A support plate (13) is fixedly connected to the lifting frame (2), and the swing arm rod (4) is rotatably connected inside the support plate (13).

6. A new type of truck restraint according to claim 5, characterized in that: A pulley (14) is rotatably connected to the lifting frame (2), and the pulley (14) is slidably connected to the fixing seat (1).

7. A new type of truck restraint according to claim 6, characterized in that: One end of the lifting frame (2) away from the fixing seat (1) is movably hinged to a grounding guide rod (15) via a hinge shaft, and the grounding guide rod (15) is located on one side of the limiting hook (5).

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