Folding standing plate of pallet truck

Abstract

The utility model relates to the technical field of carrying vehicles, and discloses a folding standing plate of a tray carrying vehicle, which comprises a standing plate mounting base, a standing plate body is movably mounted on the side wall of the standing plate mounting base, and a plurality of vertical limiting structures are fixed on the side wall of the standing plate mounting base and positioned above the standing plate body. A gas spring body is movably mounted between the standing plate body and the standing plate mounting base, standing plate mounting base supporting faces are symmetrically fixed to the positions, below the standing plate body, of the standing plate mounting base, and supporting structures are fixed to the interiors of the standing plate mounting base supporting faces correspondingly. And a first sensor and a second sensor are respectively fixed on the side walls of the supporting surfaces of the symmetrically fixed standing plate mounting bases. The stop board has the functions of detecting the opening of the stop board body and detecting whether a driver is in place or not, detection can be achieved when the stop board body is located at the position A, the position B and the position C, working states are distinguished, different detection effects are achieved, and it is ensured that operation safety specifications are met, and CE standards are met.

Description

Technical Field

[0001] The utility model relates to the technical field of handling trucks, in particular to a folding footboard of a pallet truck. Background Art

[0002] At present, the folding footboard of a walking-type handling truck needs to meet relevant standards and should have the functions of detecting whether the footboard is opened and whether the driver is in place. Designing a folding footboard that meets the CE standard is the problem to be solved in this application. Therefore, a folding footboard of a pallet truck is designed. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an object of the utility model is to provide a folding footboard of a pallet truck, which has the functions of detecting whether the footboard body is opened and whether the driver is in place, can realize detection when the footboard body is at three positions A, B, and C, distinguish working states to achieve different detection effects, ensure compliance with operation safety specifications, and meet the CE standard.

[0004] The folding footboard of a pallet truck according to the utility model includes a footboard mounting base, a side wall of the footboard mounting base is movably installed with a footboard body, a plurality of vertical limiting structures are fixed above the footboard body on the side wall of the footboard mounting base, a gas spring body is movably installed between the footboard body and the footboard mounting base, symmetrically fixed footboard mounting base support surfaces are fixed below the footboard body on the footboard mounting base, support structures are fixed inside the footboard mounting base support surfaces, and a first sensor and a second sensor are respectively fixed on the side walls of the symmetrically fixed footboard mounting base support surfaces;

[0005] The support structure includes a support ring fixed at the inner bottom of the footboard mounting base support surface, a support pin shaft is movably sleeved inside the support ring, the top and bottom of the support pin shaft respectively extend out of the top and bottom of the support ring, a bolt is threadedly installed at the bottom of the support pin shaft, and a compression spring is sleeved on the outer surface of the support ring.

[0006] Preferably, a steel-backed bearing is sleeved at the connection between the support pin shaft and the support ring.

[0007] Preferably, an adjusting gasket is fixed at the top of the support ring.

[0008] Preferably, a plurality of rotary shaft seats for movably installing the footboard body are fixed on the side wall of the footboard mounting base, a plurality of offset shafts are fixed on the lower surface of the footboard body, and the offset shafts are movably installed in the corresponding rotary shaft seats one by one.

[0009] Preferably, there is and only one side wall of the deflection shaft fixed with a paddle, and the paddle and the second sensor are installed on the same side.

[0010] Preferably, the deflection shaft, the vertical limit structure and the support structure on the same side are located in the same vertical plane.

[0011] Preferably, a gas spring fixing bracket is fixed on the side wall of the stand plate mounting base and between the support surfaces of the stand plate mounting base, a gas spring limit structure is fixed in the middle of the lower surface of the stand plate, and the gas spring body is movably installed between the gas spring fixing bracket and the gas spring limit structure.

[0012] The beneficial effects of the present utility model are: It has the functions of detecting the opening of the stand plate body and whether the driver is in place. Detection can be realized when the stand plate body is at positions A, B, and C. Different detection effects are achieved by distinguishing working states, ensuring compliance with operation safety specifications and meeting CE standards. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the first perspective of the overall structure of the folding stand plate of the pallet truck proposed by the present utility model.

[0014] Figure 2 It is a left view of the overall structure of the folding stand plate of the pallet truck proposed by the present utility model.

[0015] Figure 3 It is for the folding stand plate of the pallet truck proposed by the present utility model Figure 2 The enlarged view of the structure at position 3.

[0016] Figure 4 It is a schematic diagram of the second perspective of the overall structure of the folding stand plate of the pallet truck proposed by the present utility model.

[0017] Figure 5 It is a schematic diagram of the three position states of the stand plate body A, B, and C of the folding stand plate of the pallet truck proposed by the present utility model.

[0018] In the figure: 1. Stand plate mounting base; 2. Stand plate body; 21. Deflection shaft; 22. Paddle; 3. Support structure; 4. Second sensor; 5. First sensor; 6. Gas spring body; 7. Return rotation shaft seat; 8. Vertical limit structure; 10. Stand plate mounting base support surface; 11. Gas spring fixing bracket; 20. Gas spring limit structure; 30. Support pin shaft; 31. Set screw; 32. Adjusting gasket; 33. Compression spring; 34. Support ring; 35. Adjusting bolt; 36. Steel back bearing. Detailed Embodiments

[0019] Refer to Figures 1-5, Pallet truck folding footboard, including a footboard mounting base 1, a footboard body 2 is movably installed on the side wall of the footboard mounting base 1, a plurality of vertical limiting structures 8 are fixed above the footboard body 2 on the side wall of the footboard mounting base 1, an air spring body 6 is movably installed between the footboard body 2 and the footboard mounting base 1, footboard mounting base supports 10 are symmetrically fixed below the footboard body 2 on the footboard mounting base 1, support structures 3 are fixed inside the footboard mounting base supports 10, a first sensor 5 and a second sensor 4 are respectively fixed on the side walls of the symmetrically fixed footboard mounting base supports 10;

[0020] The support structure 3 includes a support ring 34 fixed to the inner bottom of the footboard mounting base support 10, a support pin shaft 30 is movably sleeved inside the support ring 34, the top and bottom of the support pin shaft 30 respectively extend out of the top and bottom of the support ring 34, and a bolt is threadedly installed at the bottom of the support pin shaft 30, and a compression spring 33 is sleeved on the outer surface of the support ring 34.

[0021] A steel-backed bearing 36 is sleeved at the connection between the support pin shaft 30 and the support ring 34, and the smoothness of the up and down movement of the support pin shaft 30 is improved by setting the steel-backed bearing 36.

[0022] An adjusting gasket 32 is fixed to the top of the support ring 34, the diameter of the top of the support pin shaft 30 is larger than the diameter of the top ring opening of the support ring 34, so as to realize the downward limit of the support pin shaft 30, and noise reduction, shock absorption and protection of the structure are realized by adding gaskets. A bolt is installed at the bottom of the support pin shaft 30, and the diameter of the bottom of the bolt is larger than the diameter of the bottom ring opening of the support ring 34, so as to realize the upward limit of the support pin shaft 30; due to the installation of the compression spring 33, the support pin shaft 30 is normally in the upward limit position. When stepping on the footboard body 2, the deflection shaft 21 deflects and presses the top of the support pin shaft 30, driving the support pin shaft 30 to move downward, and the compression spring 33 contracts. After removing the foot, the compression spring 33 resets and drives the support pin shaft 30 to reset, and the support pin shaft 30 propping up the deflection shaft 21 finally realizes driving the footboard body 2 to reset.

[0023] A plurality of return shaft seats 7 for movably installing the footboard body 2 are fixed on the side wall of the footboard mounting base 1, a plurality of deflection shafts 21 are fixed on the lower surface of the footboard body 2, and the deflection shafts 21 are movably installed in the corresponding return shaft seats 7 one by one. A dial 22 is fixed on the side wall of only one deflection shaft 21, and the dial 22 and the second sensor 4 are installed on the same side. Refer to Figure 4 and Figure 5, when the first sensor 5 does not detect a signal when the stand board body 2 is in state C, and the second sensor 4 is in the off state; when the stand board is in state A, the "heel" part of the deflection shaft 21 on the right side of the stand board body 2 enters the detection range of the first sensor 5, and the second sensor 4 is in the off state; when the stand board is in state B, the deflection shaft 21 on the right side of the stand board body 2 drives the dial 22 to deflect and compress the second sensor 4 to make it in the on state.

[0024] The same-side deflection shaft 21, the vertical limit structure 8 and the support structure 3 are located in the same vertical plane. Among them, the vertical limit structure 8 limits the upper deflection limit of the deflection shaft 21, and the support structure 3 limits the lower deflection limit of the deflection shaft 21. Also, since the deflection shaft 21 is fixed to the lower surface of the stand board body 2, the deflection range of the stand board body 2 is limited.

[0025] A gas spring fixing bracket 11 is fixed on the side wall of the stand board mounting base 1 and between the support surfaces 10 of the stand board mounting base. A gas spring limit structure 20 is fixed in the middle of the lower surface of the stand board. The gas spring body 6 is movably installed between the gas spring fixing bracket 11 and the gas spring limit structure 20.

[0026] When this device is in use, refer to Figure 5 , for example, the stand board body 2 is in three positions A, B, and C;

[0027] When the stand board body 2 is opened and the driver is not in place, the stand board body 2 is in the free-lowering state A of the stand board. At this time, the moment of the gas spring body 6 is less than the moment generated by the self-weight of the stand board body 2. The first sensor 5 detects that the pedal is in the free-lowering state A and cooperates with other sensors of the forklift to give the correct operating state. At this time, the upper surface of the pedal support pin shaft 30 contacts the stand board body 2, and the angle between the stand board body 2 and the horizontal plane in the free-lowering state A can be adjusted by adjusting the screwing depth of the adjusting bolt 35 in the internal thread at the lower end of the support pin shaft 30.

[0028] When the driver stands on the stand board body 2, the stand board body 2 rotates downward along the rotary shaft seat 7 due to the driver's gravity to the driver-in-place state B. The second sensor 4 detects that the pedal is in the driver-in-place state B and cooperates with other sensors of the forklift to give the correct operating state. At this time, the compression spring 33 and the support ring 34 are jointly compressed. The moment generated by the elastic force of the compression spring 33 is much less than the moment generated by the driver's self-weight, and the angle between the stand board and the horizontal plane in the driver-in-place state B can be adjusted by adjusting the protruding length of the set screw 31 compared to the lower surface of the support surface of the support pin shaft 30.

[0029] When the driver manually lifts the stand board body 2 from the free-lowering state A of the stand board to the retracted state C of the stand board, at this time, neither the first sensor 5 nor the second sensor 4 detects a signal. Cooperating with other sensors of the forklift to give the correct operating state, at this time, the resultant moment direction of the working force of the gas spring body 6 and the self-weight of the stand board body 2 is to the left, so that the stand board body 2 will not return to the free-lowering state A of the stand board due to its own weight, and the angle between the stand board body 2 and the horizontal plane when it is in the retracted state C of the stand board can be adjusted by adjusting the vertical limit structure 8.

Claims

1. Folding platform for pallet truck, characterized by: It includes a standing board mounting base, a standing board body is movably mounted on the side wall of the standing board mounting base, a plurality of vertical limiting structures are fixed on the side wall of the standing board mounting base and located above the standing board body, a gas spring body is movably mounted between the standing board body and the standing board mounting base, a standing board mounting base supporting surface is symmetrically fixed on the standing board mounting base and located below the standing board body, a supporting structure is fixed inside the supporting surface of the standing board mounting base, and a first sensor and a second sensor are respectively fixed on the side walls of the symmetrically fixed supporting surface of the standing board mounting base; The support structure includes a support ring fixed to the bottom of the support surface of the station plate mounting base, the internal movable sleeve of the support ring is equipped with a support pin, the top and bottom of the support pin extend out of the top and bottom of the support ring respectively, and the bottom of the support pin is threaded with a bolt, and the outer surface of the support ring is equipped with a compression spring.

2. The folding platform of a pallet truck according to claim 1, characterized in that: A steel back bearing is mounted at the connection between the support pin shaft and the support ring.

3. The folding platform of a pallet truck according to claim 1, characterized in that: An adjusting gasket is fixed on the top of the supporting ring.

4. The folding platform of a pallet truck according to claim 1, characterized in that: A plurality of swivel shaft seats for movably mounting the stand board body are fixed to the side wall of the stand board mounting base, and a plurality of deflection shafts are fixed to the lower surface of the stand board body. The deflection shafts are movably mounted one by one in the corresponding swivel shaft seats.

5. The folding platform of a pallet truck according to claim 4, characterized in that: A paddle is fixed to one and only one side wall of the deflection shaft, and the paddle and the second sensor are installed on the same side.

6. The folding platform of a pallet truck according to claim 4, characterized in that: The deflection axis, vertical limiting structure and supporting structure on the same side are located in the same vertical plane.

7. The folding platform of a pallet truck according to claim 1, characterized in that: A gas spring fixing bracket is fixed on the side wall of the standing plate mounting base and between the supporting surfaces of the standing plate mounting base, a gas spring limiting structure is fixed in the middle of the lower surface of the standing plate, and the gas spring body is movably installed between the gas spring fixing bracket and the gas spring limiting structure.

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