Tray stack clamping device

Abstract

The utility model relates to the technical field of clamping devices, and discloses a tray stack clamping device which comprises a U-shaped bottom frame, supporting columns are fixedly connected to the two ends of the top of the U-shaped bottom frame, rectangular holes are formed in the tops of the two supporting columns, and stabilizing mechanisms are arranged at the tops of the two supporting columns. The stabilizing mechanism comprises two pressing plates which are slidably connected into the two rectangular holes correspondingly, the same lead screw is rotationally connected between the tops and the bottoms of the two rectangular holes, the two lead screws penetrate through the pressing plates close to each other in a threaded mode, the two pressing plates are fixedly sleeved with lead screw nuts matched with the lead screws, the threads of the two lead screws are opposite, and the two pressing plates are fixedly sleeved with the lead screw nuts. The threads of the two lead screws are opposite, so that the rotating rod drives the two lead screws to synchronously and reversely rotate through the first bevel gear and the second bevel gear. According to the tray stack transferring device, the technical effects that the tray stack is stably moved during transferring, the risk of toppling is avoided, the operation safety is guaranteed, the working efficiency is improved, and the injury risk possibly caused by manual carrying is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a pallet stacking clamping device. Background Art

[0002] Pallet stacking is a method of stacking multiple pallets with their cargo in an orderly fashion in logistics and warehousing. It is a common method used in the storage and handling of goods. Its handling efficiency and accuracy have a significant impact on the operational efficiency, cost control, and cargo safety of the logistics and warehousing industries. Pallet stacking often requires tools to be transferred before and after use.

[0003] In the prior art, when transporting pallets, forklifts and other devices are generally used to transfer higher pallets. However, when the pallet stack being transported is higher, when the movement is unstable, the higher pallet stack is prone to tilting and collapsing, which reduces the user's work efficiency and is inconvenient to use. For this reason, a pallet stack clamping device is designed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a pallet stacking clamping device.

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

[0006] The two levers are connected along the longitudinal axis of the U-shaped frame, and the levers are connected along the longitudinal axis to form a U-shaped slotting mechanism, wherein the levers are connected along the longitudinal axis to form a U-shaped slot.

[0007] As a further solution of the present invention, the stabilizing mechanism also includes vertical plates fixedly connected to the tops of the two support columns, and the same rotating rod is rotatably connected between the two vertical plates. The two rotating rods are fixedly sleeved with first bevel gears near both ends, and each first bevel gear is meshed with an adjacent second bevel gear. One end of the rotating rod passes through the vertical plate and is fixedly connected to the second transmission wheel. The first transmission wheel is rotatably connected to the middle part of the outer side of the support column near the second transmission wheel, and the same transmission belt is sleeved between the first transmission wheel and the second transmission wheel, and a crank is provided on the outer side of the first transmission wheel.

[0008] As a further solution of the present invention, the top of the U-shaped chassis is fixedly connected to a guide rod near the two support columns, the tops of the two guide rods are fixedly connected to fixed protrusions, and the two fixed protrusions are respectively fixedly connected to the adjacent support columns.

[0009] As a further solution of the present invention, the circumferential surfaces of the two guide rods are slidingly sleeved with a same U-shaped bracket, and both ends of the U-shaped bracket are provided with circular holes adapted to the guide rods.

[0010] As a further solution of the present invention, a hydraulic cylinder is fixedly connected to the middle of the top of the U-shaped base frame, a fixed pulley is fixedly connected to the top of the hydraulic cylinder, a steel wire rope is fixedly connected to the middle of the top of the U-shaped base frame, and the other end of the steel wire rope is fixedly connected to the top of the U-shaped bracket by passing around the fixed pulley. By setting the hydraulic cylinder, fixed pulley and steel wire rope, the stroke of the hydraulic cylinder can be amplified.

[0011] As a further solution of the present invention, rollers are provided at both ends of the U-shaped chassis, a fixing plate is fixedly connected to the bottom of the two support columns on one side away from the rollers, and a universal wheel is fixedly connected to the bottom of the two fixing plates.

[0012] As a further solution of the present invention, a handle is fixedly connected to one side of the two support columns away from the roller.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts the technical means of a stabilizing mechanism, and when the device is transporting the pallet stack, the top of the pallet stack is limited by two pressure plates, so that the higher pallet stack will not tilt or fall over during movement, which facilitates the rapid movement of the pallet stack and effectively solves the problem of easy falling over of the pallet stack proposed in the background technology, thereby achieving the technical effect of stable movement of the pallet stack during transfer without the risk of falling over, ensuring the safety of operation, improving work efficiency, and reducing the risk of injury that may be caused by manual handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a pallet stacking clamping device proposed by the present invention;

[0016] Figure 2 This is a structural schematic diagram of a stabilizing mechanism of a pallet stack clamping device proposed in the present invention;

[0017] Figure 3 A pallet stacking clamping device proposed by the utility model Figure 2 A schematic diagram of the structure enlarged at point A;

[0018] Figure 4 This is a partial structural diagram of a pallet stacking device proposed in the present invention. The diagram includes: 1. U-shaped base frame; 101. Roller; 2. Support column; 201. Rectangular hole; 202. Handle; 3. Fixed plate; 301. Universal wheel; 4. Stabilizing mechanism; 401. Screw; 402. Pressure plate; 403. Connecting rod; 404. First transmission wheel; 405. Crank handle; 406. Transmission belt; 407. Vertical plate; 408. Rotating rod; 409. First bevel gear; 410. Second bevel gear; 411. Second transmission wheel; 5. U-shaped bracket; 6. Guide rod; 601. Fixed bump; 7. Hydraulic cylinder; 701. Fixed pulley; 8. Wire rope. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Reference Figures 1-4 A pallet stack clamping device includes a U-shaped base frame 1, with support columns 2 fixedly connected at both ends of the top of the U-shaped base frame 1, and rectangular holes 201 are opened at the tops of the two support columns 2. A stabilizing mechanism 4 is provided at the tops of the two support columns 2, and the stabilizing mechanism 4 includes two pressing plates 402 that are respectively slidably connected to the two rectangular holes 201. The top and bottom of the two rectangular holes 201 are rotatably connected with the same screw rod 401, and the two screw rods 401 are threaded through the adjacent pressing plates 402. Screw nuts that are compatible with the screw rods 401 are fixedly sleeved on the two pressing plates 402, and the threads of the two screw rods 401 are opposite. The same connecting rod 403 is fixedly connected between the two pressing plates 402, and the tops of the two screw rods 401 pass through the adjacent support columns 2 and are fixedly connected to the second bevel gear 410.

[0022] In this embodiment, the stabilizing mechanism 4 also includes vertical plates 407 fixedly connected to the tops of the two support columns 2, and a same rotating rod 408 is rotatably connected between the two vertical plates 407. The two rotating rods 408 are fixedly sleeved with first bevel gears 409 near both ends, and each first bevel gear 409 is meshed with a second bevel gear 410 adjacent to it. One end of the rotating rod 408 passes through the vertical plate 407 and is fixedly connected to a second transmission wheel 411. The middle part of the outer side of the support column 2 near the second transmission wheel 411 is rotatably connected with the first transmission wheel 404, and the same transmission belt 406 is sleeved between the first transmission wheel 404 and the second transmission wheel 411. A crank 405 is provided on the outside of the first transmission wheel 404. By rotating the crank 405, the two screw rods 401 rotate synchronously, so that the two pressure plates 402 rise and fall synchronously, thereby limiting the top of the pallet stack.

[0023] In this embodiment, a guide rod 6 is fixedly connected to the top of the U-shaped chassis 1 near the two support columns 2, and a fixed protrusion 601 is fixedly connected to the top of the two guide rods 6. The two fixed protrusions 601 are respectively fixedly connected to the adjacent support columns 2.

[0024] In this embodiment, a same U-shaped bracket 5 is slidably sleeved on the circumferential surfaces of the two guide rods 6 , and circular holes adapted to the guide rods 6 are opened at both ends of the U-shaped bracket 5 .

[0025] In this embodiment, a hydraulic cylinder 7 is fixedly connected to the middle of the top of the U-shaped base frame 1, a fixed pulley 701 is fixedly connected to the top of the hydraulic cylinder 7, a steel wire rope 8 is fixedly connected to the middle of the top of the U-shaped base frame 1, and the other end of the steel wire rope 8 is fixedly connected to the top of the U-shaped bracket 5 by passing around the fixed pulley 701. Through the arrangement of the hydraulic cylinder 7, the fixed pulley 701 and the steel wire rope 8, the stroke of the hydraulic cylinder 7 is amplified, and the lifting and lowering of the U-shaped bracket 5 is realized.

[0026] In this embodiment, rollers 101 are provided at both ends of the U-shaped base frame 1, and the bottom of the two support columns 2 is fixedly connected to the side away from the rollers 101. The bottom of the two fixed plates 3 is fixedly connected to universal wheels 301. The setting of the universal wheels 301 and the rollers 101 facilitates the flexible movement of the equipment.

[0027] In this embodiment, a handle 202 is fixedly connected to one side of the two support columns 2 away from the roller 101 .

[0028] Working principle: When the device is in use, the hydraulic cylinder 7 is controlled to make the U-shaped bracket 5 rise to the required height and insert it into the gap of the pallet stack. The hydraulic cylinder 7 is used to lift the guide rod 6, so that the pallet stack on the top of the guide rod 6 and the pallet stack away from the bottom, the user can realize the movement of the pallet stack by setting the handle 202, universal wheel 301, etc. To ensure that the pallet stack with a higher top does not fall when the device is moving, the crank 405 can be turned to drive the rotating rod 408 to rotate through the first transmission wheel 404, transmission belt 406 and second transmission wheel 411, so that the two first bevel gears 409 and second bevel gears 410 are used to rotate the screw rods 401 on both sides, so that the two pressure plates 402 are lowered to press the pallet stack on the top, so as to avoid the accident of multiple pallets being higher and easily falling during the movement of the device, thereby ensuring work efficiency. When unloading is required, the crank 405 is reversed to move the two pressure plates 402 upward to facilitate subsequent work.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pallet stacking device, comprising a U-shaped chassis (1), characterized in that: The top ends of the U-shaped chassis (1) are fixedly connected to support columns (2), the tops of the two support columns (2) are each provided with a rectangular hole (201), the tops of the two support columns (2) are provided with a stabilizing mechanism (4), the stabilizing mechanism (4) comprises two pressing plates (402) respectively slidably connected in the two rectangular holes (201), the tops and bottoms of the two rectangular holes (201) are both rotatably connected with a same screw rod (401), the two screw rods (401) are both threadedly passed through the adjacent pressing plates (402), the two pressing plates (402) are both fixedly sleeved with a screw rod nut adapted to the screw rod (401), the threads of the two screw rods (401) are opposite, the two pressing plates (402) are fixedly connected with a same connecting rod (403), the tops of the two screw rods (401) are both passed through the adjacent support columns (2) and are fixedly connected with a second bevel gear (410).

2. The pallet stacking device according to claim 1, characterized in that: The stabilizing mechanism (4) further comprises a vertical plate (407) fixedly connected to the top of the two support columns (2), a same rotating rod (408) being rotatably connected between the two vertical plates (407), a first bevel gear (409) being fixedly sleeved near both ends of the two rotating rods (408), and each first bevel gear (409) being meshed with a second bevel gear (410) adjacent thereto, one end of the rotating rod (408) passing through the vertical plate (407) being fixedly connected to a second transmission wheel (411), a first transmission wheel (404) being rotatably connected to the middle portion of the outer side of the support column (2) near the second transmission wheel (411), a same transmission belt (406) being sleeved between the first transmission wheel (404) and the second transmission wheel (411), and a crank (405) being provided on the outer side of the first transmission wheel (404).

3. The pallet stacking device according to claim 1, characterized in that: The top of the U-shaped chassis (1) is fixedly connected to a guide rod (6) near the two support columns (2), and the tops of the two guide rods (6) are fixedly connected to a fixed protrusion (601), and the two fixed protrusions (601) are respectively fixedly connected to the adjacent support columns (2).

4. The pallet stacking device according to claim 3, characterized in that: The circumferential surfaces of the two guide rods (6) are slidably sleeved with a same U-shaped bracket (5), and both ends of the U-shaped bracket (5) are provided with circular holes adapted to the guide rods (6).

5. The pallet stacking device according to claim 1, characterized in that: A hydraulic cylinder (7) is fixedly connected to the middle of the top of the U-shaped chassis (1), a fixed pulley (701) is fixedly connected to the top of the hydraulic cylinder (7), a steel wire rope (8) is fixedly connected to the middle of the top of the U-shaped chassis (1), and the other end of the steel wire rope (8) passes around the fixed pulley (701) and is fixedly connected to the top of the U-shaped bracket (5).

6. The pallet stacking device according to claim 1, characterized in that: Rollers (101) are provided at both ends of the U-shaped chassis (1); a fixed plate (3) is fixedly connected to the bottom of each of the two support columns (2) on a side away from the rollers (101); and a universal wheel (301) is fixedly connected to the bottom of each of the two fixed plates (3).

7. The pallet stacking device according to claim 1, characterized in that: A handle (202) is fixedly connected to one side of the two support columns (2) away from the roller (101).

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