Fixed loading and unloading gap bridge

Abstract

The utility model relates to the technical field of loading and unloading platform auxiliary devices, and provides a fixed type loading and unloading gap bridge which comprises a platform, a main bridge body is rotatably installed in the platform, a reinforcing frame is fixedly installed at the bottom of the main bridge body, an inner fixing rod is fixedly installed on the main bridge body, an outer rotating rod is rotatably installed on the inner fixing rod, and the reinforcing frame is fixedly installed on the outer rotating rod. Arc plates are evenly and fixedly installed on the outer rotating rod at equal intervals, and main discharging plates are fixedly installed on the arc plates. A telescopic rod is rotatably mounted at the bottom of the main bridge body, and the other end of the telescopic rod is rotatably mounted on the main unloading plate; a servo motor is arranged at the bottom of the main bridge body, a two-way threaded rod is fixedly installed at the output end of the shaft portion of the servo motor, two nut pairs are connected to the two-way threaded rod through threads, first connecting blocks are fixedly installed on the nut pairs, and auxiliary bridge bodies are fixedly installed at the other ends of the first connecting blocks. The problems that existing equipment cannot be adjusted and is poor in applicability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for loading and unloading platforms, in particular to a fixed loading and unloading bridge. Background Art

[0002] In the current transportation industry, fixed cement platforms are mostly used as loading and unloading platforms. The platform height is fixed and cannot be adjusted. Due to the inconsistency of the specifications and models of the transport vehicles and the large differences in the height of the vehicle boxes from the ground, and the change of the height of the vehicle compartment due to the change of the cargo in the vehicle compartment during the loading and unloading process, the loading and unloading platform can only meet the needs of some transport vehicles for forklift operations in actual application. The applicability and work efficiency are low, and the loading and unloading platform cannot fully play its role.

[0003] According to the search of China Utility Model Publication No.: CN210504816U, this kind of fixed loading and unloading platform bridge device is set on the front facade of the original fixed loading and unloading platform, including a facade support frame and a main support plate, the facade support frame is attached to the loading and unloading platform, the height of the facade support frame is flush with the height of the loading and unloading platform, the first side of the main support plate is connected to the facade support frame through a first hinge, the main support plate and the loading and unloading platform are arranged on both sides of the facade support frame, and the main support plate can rotate around the hinge axis of the first hinge. The bridge device of the utility model is easy to use, and the use of a fixed device on the existing fixed cement platform for material loading and unloading effectively improves the efficiency of material loading and unloading and ensures loading and unloading safety, and solves the problem that the specifications and models of material transportation vehicles are inconsistent and the height of each vehicle box from the ground is quite different, and forks (holding) cannot be directly used for loading and unloading.

[0004] In the process of studying the above technical solution, I found that although the technical solution solves the height problem of vehicles of different sizes from the platform, during use, the widths of transport vehicles of different specifications are different, so not all vehicles can be entered by forklifts. Smaller models can often only be entered by carts, so the loading and unloading bridge that is suitable for the size of forklifts cannot be used in this situation, and the efficiency is low. Utility Model Content

[0005] The utility model provides a fixed loading and unloading bridge, which solves the problem that the existing equipment cannot be adjusted and has poor applicability.

[0006] The technical solution of the utility model is as follows: a fixed loading and unloading bridge, comprising a platform, a main bridge body is rotatably installed in the platform, a reinforcement frame is fixedly installed at the bottom of the main bridge body, a hydraulic rod is rotatably installed inside the platform, and the other end of the hydraulic rod is rotatably installed on the reinforcement frame;

[0007] An inner fixing rod is fixedly mounted on the main bridge body, an outer rotating rod is rotatably mounted on the inner fixing rod, arc plates are evenly and equidistantly fixedly mounted on the outer rotating rod, and a main unloading plate is fixedly mounted on the arc plate;

[0008] A telescopic rod is rotatably mounted on the bottom of the main bridge body, and the other end of the telescopic rod is rotatably mounted on the main unloading plate;

[0009] A servo motor is provided at the bottom of the main bridge body, a bidirectional threaded rod is fixedly installed at the output end of the shaft of the servo motor, two nut pairs are connected to the bidirectional threaded rod by threads, a first connecting block is fixedly installed on each of the nut pairs, and an auxiliary bridge body is fixedly installed at the other end of the first connecting block;

[0010] The two auxiliary bridge bodies are both located inside the main bridge body.

[0011] Preferably, the two nut pairs are respectively located in different thread directions of the bidirectional threaded rod and are at the same distance from the central part of the bidirectional threaded rod.

[0012] Preferably, anti-slip pads are embedded and installed on the main bridge body and the auxiliary bridge body.

[0013] Preferably, railings are fixedly mounted on the two auxiliary bridge bodies, and the two railings are respectively located at the edges of opposite ends of the two auxiliary bridge bodies.

[0014] Preferably, two second connecting blocks are sleeved on the inner fixed rod, a sliding groove is opened on the second connecting block, and the second connecting block can slide and rotate on the inner fixed rod, and auxiliary unloading plates are fixedly installed on the two second connecting blocks, and the two auxiliary unloading plates are both located inside the main unloading plate.

[0015] Preferably, a mounting frame is fixedly mounted on the nut pair, a connecting rod is fixedly mounted on the mounting frame, and the connecting rod is located inside the sliding groove.

[0016] Preferably, a hole groove which does not affect the operation of the mounting frame is formed on the outer rotating rod, and a groove which does not affect the movement of the second connecting block is also formed on the outer rotating rod.

[0017] Preferably, a groove for movement of the outer rotating rod is provided at one end of the main unloading plate close to the outer rotating rod, and the arc plate is a superior arc, which does not affect the continuity of movement of the auxiliary unloading plate.

[0018] The working principle and beneficial effects of the utility model are:

[0019] (1) The utility model is provided with a main bridge body, an auxiliary bridge body, a bidirectional threaded rod, a nut pair, a first connecting block and an auxiliary bridge body. The start of the servo motor can cause the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the two nut pairs to move on it. The movement of the nut pair causes the auxiliary bridge bodies on both sides to move, so that the auxiliary bridge bodies extend from both sides of the main bridge body, so that the length of the whole formed by the main bridge body and the two auxiliary bridge bodies can be changed. It can be suitable for transport vehicles of different widths. While reducing the footprint of the equipment, the adjustable equipment width makes the equipment more adaptable.

[0020] The utility model is provided with an external rotating rod, an arc plate, a main unloading plate, a mounting frame, a connecting rod, a second connecting block and an auxiliary unloading plate. The movement of the nut pair can make the second connecting block move through the mounting frame and the connecting rod, and then the second connecting block and the auxiliary unloading plate move synchronously, and then the two auxiliary unloading plates move out from both sides of the main unloading 3, so that the length of the whole formed by the auxiliary unloading plate and the main unloading plate also changes synchronously, and the applicability is stronger. The power source is the same as the adjustment of the main bridge body, the movement is synchronized and the adjustment distance is the same.

[0021] (3) The utility model is provided with a main unloading plate, an auxiliary bridge body, an anti-skid pad and a railing. The presence of the anti-skid pad allows the cart and other transfer equipment to smoothly transport goods and avoid slipping, which affects the transportation efficiency. The presence of the railings on both sides can limit the transportation trajectory and protect the operators, thereby improving the safety and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the main unloading plate connection structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the height adjustment principle of the utility model;

[0026] Figure 4 This is a schematic diagram of the length adjustment principle of the utility model;

[0027] Figure 5 This is a schematic diagram of the synchronous operation principle of the auxiliary unloading plate of the utility model;

[0028] Figure 6 This is a schematic diagram of the internal structure of the external rotating rod of the utility model.

[0029] In the figure: 1. platform; 2. main bridge body; 3. main unloading plate; 4. auxiliary bridge body; 5. auxiliary unloading plate; 6. anti-slip pad; 7. railing; 8. external rotating rod; 9. arc plate; 10. reinforcement frame; 11. hydraulic rod; 12. telescopic rod; 13. two-way threaded rod; 14. servo motor; 15. internal fixing rod; 16. nut pair; 17. first connecting block; 18. mounting frame; 19. connecting rod; 20. second connecting block; 21. sliding groove. DETAILED DESCRIPTION

[0030] The following will be combined with 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 of 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.

[0031] First embodiment; please refer to Figures 1 to 4 The utility model provides a technical solution for a fixed loading and unloading bridge: comprising a platform 1, a main bridge body 2 is rotatably installed in the platform 1, and a reinforcement frame 10 is fixedly installed at the bottom of the main bridge body 2;

[0032] The presence of the reinforcement frame 10 can increase the load-bearing capacity of the main bridge body 2 and the stability of the main bridge body 2 through multiple groups of criss-crossing reinforcement ribs.

[0033] A hydraulic rod 11 is rotatably mounted inside the platform 1, and the other end of the hydraulic rod 11 is rotatably mounted on the reinforcement frame 10;

[0034] When the hydraulic rod 11 is activated, through the hinged structure, the hydraulic rod 11 will lift the reinforcement frame 10, thereby changing the angle and height of the main bridge body 2, so as to adapt to different vehicle box heights above the ground.

[0035] An inner fixed rod 15 is fixedly mounted on the main bridge body 2, an outer rotating rod 8 is rotatably mounted on the inner fixed rod 15, arc plates 9 are evenly and equidistantly fixedly mounted on the outer rotating rod 8, and a main unloading plate 3 is fixedly mounted on the arc plate 9;

[0036] The centers of the inner fixed rod 15 and the outer rotating rod 8 are on the same axis, so when the main unloading plate 3 rotates, the arc plate 9 and the outer rotating rod 8 rotate around the axis.

[0037] A telescopic rod 12 is rotatably mounted on the bottom of the main bridge body 2, and the other end of the telescopic rod 12 is rotatably mounted on the main unloading plate 3;

[0038] When the telescopic rod 12 is activated, the main unloading plate 3 will change its angle through the hinged structure, so that the main unloading plate 3 is placed inside the compartment to be unloaded, and the unloading operation can be carried out.

[0039] A servo motor 14 is provided at the bottom of the main bridge body 2, a bidirectional threaded rod 13 is fixedly installed at the shaft output end of the servo motor 14, two nut pairs 16 are threadedly connected to the bidirectional threaded rod 13, a first connecting block 17 is fixedly installed on each of the nut pairs 16, and the other end of the first connecting block 17 is fixedly installed with the auxiliary bridge body 4;

[0040] Start the servo motor 14 to rotate the bidirectional threaded rod 13. The rotation of the bidirectional threaded rod 13 causes the two nut pairs 16 to move thereon. The movement of the nut pairs 16 causes the auxiliary bridge bodies 4 on both sides to move, so that the auxiliary bridge bodies 4 extend from both sides of the main bridge body 2. This changes the length of the whole formed by the main bridge body 2 and the two auxiliary bridge bodies 4, which can be suitable for transport vehicles of different widths.

[0041] The two auxiliary bridge bodies 4 are both located inside the main bridge body 2 , so the auxiliary bridge bodies 4 can be moved out from both sides of the main bridge body 2 .

[0042] The two nut pairs 16 are respectively located at different thread directions of the bidirectional threaded rod 13 and are at the same distance from the center of the bidirectional threaded rod 13 .

[0043] Second embodiment: Based on the first embodiment, Figure 5 and Figure 6 As shown, two second connection blocks 20 are sleeved on the inner fixing rod 15, and a sliding groove 21 is opened on the second connection block 20, and the second connection block 20 can slide and rotate on the inner fixing rod 15.

[0044] Auxiliary unloading plates 5 are fixedly mounted on the two second connecting blocks 20, and the two auxiliary unloading plates 5 are both located inside the main unloading plate 3;

[0045] When the nut pair 16 moves, the second connecting block 20 moves synchronously, and then the two auxiliary unloading plates 5 move out from both sides of the main unloading plate 3.

[0046] The auxiliary unloading plate 5 and the auxiliary bridge body 4 are both moved by the same power source, and the amplitude and distance of the movement are the same.

[0047] A mounting frame 18 is fixedly mounted on the nut pair 16 , and a connecting rod 19 is fixedly mounted on the mounting frame 18 . The connecting rod 19 is located inside the sliding groove 21 .

[0048] When the main unloading plate 3 rotates, the second connecting block 20 rotates on the inner fixing rod 15. The rotation of the second connecting block 20 changes the position of the sliding groove 21 on the second connecting block 20 that contacts the connecting rod 19.

[0049] The movement of the nut pair 16 can move the second connecting block 20 through the mounting frame 18 and the connecting rod 19, thereby causing the second connecting block 20 and the auxiliary unloading plate 5 to move synchronously.

[0050] The outer rotating rod 8 is provided with a hole groove which does not affect the operation of the mounting frame 18, and the outer rotating rod 8 is also provided with a groove which does not affect the movement of the second connecting block 20, so that when the outer rotating rod 8 rotates, the mounting frame 18 can also move normally.

[0051] One end of the main unloading plate 3 close to the outer rotating rod 8 is provided with a groove for the outer rotating rod 8 to move, and the arc plate 9 is a superior arc, which does not affect the continuity of the movement of the auxiliary unloading plate 5.

[0052] The third embodiment; Figure 1 As shown, anti-skid pads 6 are embedded and installed on the main bridge body 2 and the auxiliary bridge body 4. The presence of the anti-skid pads 6 allows the carts and other transfer equipment to smoothly transport goods and avoid slipping, which affects the transportation efficiency.

[0053] Railings 7 are fixedly installed on the two auxiliary bridge bodies 4, and the two railings 7 are respectively located at the edges of the opposite ends of the two auxiliary bridge bodies 4. The presence of the railings 7 on both sides can limit the transportation trajectory and protect the operators, thereby improving the safety and stability of the equipment.

[0054] The workflow of the utility model;

[0055] First, unfold the equipment and start the hydraulic rod 11. Through the hinged structure, the hydraulic rod 11 lifts the reinforcement frame 10, thereby changing the angle and height of the main bridge body 2. When the vehicle box reaches a suitable height from the ground, stop.

[0056] Afterwards, the main unloading plate 3 is adjusted, and the telescopic rod 12 is started. Through the hinged structure, the main unloading plate 3 will change its angle, so that the main unloading plate 3 is placed inside the carriage to be unloaded, and the unloading operation can be carried out.

[0057] When the main unloading plate 3 rotates, the second connecting block 20 rotates on the inner fixing rod 15, so that the position of the sliding groove 21 on the second connecting block 20 that contacts the connecting rod 19 changes.

[0058] Then, adjustments are made according to the actual width of the truck, and the servo motor 14 is started to rotate the bidirectional threaded rod 13. The rotation of the bidirectional threaded rod 13 causes the two nut pairs 16 to move thereon. The movement of the nut pairs 16 causes the auxiliary bridge bodies 4 on both sides to move, so that the auxiliary bridge bodies 4 extend from both sides of the main bridge body 2, thereby changing the length of the whole formed by the main bridge body 2 and the two auxiliary bridge bodies 4, which can be suitable for transport vehicles of different widths.

[0059] The movement of the nut pair 16 can move the second connecting block 20 through the mounting frame 18 and the connecting rod 19, thereby causing the second connecting block 20 and the auxiliary unloading plate 5 to move synchronously. The second connecting block 20 moves synchronously, and then the two auxiliary unloading plates 5 move out from the two sides of the main unloading plate 3, so that the length of the whole formed by the auxiliary unloading plate 5 and the main unloading plate 3 also changes synchronously, which is more applicable.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixed loading and unloading bridge, comprising a platform (1), wherein a main bridge body (2) is rotatably mounted in the platform (1), characterized in that: A reinforcement frame (10) is fixedly mounted on the bottom of the main bridge body (2); a hydraulic rod (11) is rotatably mounted inside the platform (1); and the other end of the hydraulic rod (11) is rotatably mounted on the reinforcement frame (10); An inner fixing rod (15) is fixedly mounted on the main bridge body (2), an outer rotating rod (8) is rotatably mounted on the inner fixing rod (15), arc plates (9) are fixedly mounted on the outer rotating rod (8) at equal intervals, and a main unloading plate (3) is fixedly mounted on the arc plate (9); A telescopic rod (12) is rotatably mounted on the bottom of the main bridge body (2), and the other end of the telescopic rod (12) is rotatably mounted on the main unloading plate (3); A servo motor (14) is provided at the bottom of the main bridge body (2); a bidirectional threaded rod (13) is fixedly mounted on the output end of the shaft of the servo motor (14); two nut pairs (16) are threadedly connected to the bidirectional threaded rod (13); a first connecting block (17) is fixedly mounted on each of the nut pairs (16); and an auxiliary bridge body (4) is fixedly mounted on the other end of the first connecting block (17); The two auxiliary bridge bodies (4) are both located inside the main bridge body (2).

2. A fixed loading and unloading bridge according to claim 1, characterized in that: The two nut pairs (16) are respectively located in different thread directions of the bidirectional threaded rod (13) and are at the same distance from the central part of the bidirectional threaded rod (13).

3. A fixed loading and unloading bridge according to claim 1, characterized in that: Anti-slip pads (6) are inlaid and installed on the main bridge body (2) and the auxiliary bridge body (4).

4. The fixed loading and unloading bridge according to claim 1 is characterized in that: A handrail (7) is fixedly mounted on each of the two auxiliary bridge bodies (4), and the two handrails (7) are respectively located at the edges of opposite ends of the two auxiliary bridge bodies (4).

5. The fixed loading and unloading bridge according to claim 1 is characterized in that: Two second connection blocks (20) are sleeved on the inner fixing rod (15), and a sliding groove (21) is provided on the second connection block (20). The second connection block (20) can slide and rotate on the inner fixing rod (15), and auxiliary unloading plates (5) are fixedly mounted on the two second connection blocks (20), and the two auxiliary unloading plates (5) are both located inside the main unloading plate (3).

6. The fixed loading and unloading bridge according to claim 1 is characterized by: A mounting frame (18) is fixedly mounted on the nut pair (16), a connecting rod (19) is fixedly mounted on the mounting frame (18), and the connecting rod (19) is located inside the sliding groove (21).

7. The fixed loading and unloading bridge according to claim 1 is characterized by: The outer rotating rod (8) is provided with a hole groove which does not affect the operation of the mounting frame (18), and the outer rotating rod (8) is also provided with a groove which does not affect the movement of the second connecting block (20).

8. The fixed loading and unloading bridge according to claim 5 is characterized by: A groove for allowing the outer rotating rod (8) to move is provided at one end of the main unloading plate (3) close to the outer rotating rod (8), and the arc plate (9) is a superior arc, which does not affect the continuity of the movement of the auxiliary unloading plate (5).

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