A forklift carton clip

Abstract

This utility model relates to the field of forklift attachment technology and discloses a carton clamp for forklifts, including a base assembly, two clamping arm assemblies arranged opposite to each other and slidably connected to the base assembly, a cylinder assembly fixed to the base assembly, and a hydraulic system communicating with the cylinder assembly. A backrest is installed on the base assembly. The hydraulic system includes a control valve and a pressure regulating valve that are interconnected. The control valve is fixed to the top of the base assembly, and the pressure regulating valve is fixedly connected to the backrest via a mounting plate. This utility model optimizes the installation position of the pressure regulating valve in the hydraulic system, making the installation and removal of the carton clamp as a forklift attachment more convenient. It also avoids the problem of traditional pressure regulating valves requiring manual drilling into the forklift mast during installation, which could potentially damage the integrity and load-bearing capacity of the forklift mast.

Description

Technical Field

[0001] This utility model relates to the field of forklift attachment technology, specifically a carton clamp for forklifts. Background Technology

[0002] Cardboard box clamps are forklift attachments mainly used in the handling of cardboard boxes and other packaging materials. They are widely used in warehousing and logistics scenarios in industries such as home appliances and food and beverages. Using cardboard box clamps can improve handling efficiency and reduce the risk of cardboard box damage. Through hydraulically driven clamping arms, they can quickly clamp, efficiently transfer, and stack cardboard box goods such as refrigerators, televisions, and washing machines.

[0003] However, existing carton clamps, such as the one described in patent CN205933104U, have their hydraulic system control valve installed on the base assembly of the carton clamp, while the pressure regulating valve is installed on the forklift mast. Therefore, when installing the pressure regulating valve, the OEM needs to install the carton clamp on the forklift first and then manually drill holes in the forklift mast to install it. This not only weakens the load-bearing capacity of the forklift mast, but also makes the oil circuit connection between the pressure regulating valve and the control valve more complicated. Furthermore, when replacing other forklift attachments, the pressure regulating valve must be disassembled before the carton clamp can be removed from the forklift. This makes the overall installation and disassembly process cumbersome, complicated, and very inconvenient.

[0004] In conclusion, there is an urgent need for a forklift carton clamp to optimize the installation position of the pressure regulating valve. Utility Model Content

[0005] The purpose of this utility model is to provide a forklift carton clamp to solve the problems mentioned in the background art, so as to achieve stable clamping of the upper end of the goods and optimize the installation position of the pressure regulating valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A forklift carton clamp includes a base assembly, two opposing clamping arm assemblies slidably connected to the base assembly, a cylinder assembly fixed to the base assembly, and a hydraulic system communicating with the cylinder assembly. A retaining shelf is mounted on the base assembly. The hydraulic system includes a control valve and a pressure regulating valve communicating with each other. The control valve is fixed to the top of the base assembly, and the pressure regulating valve is fixedly connected to the retaining shelf via a mounting plate.

[0007] As a further embodiment of this utility model: to facilitate the operation of the regulating valve, the mounting plate is located on one side edge of the barrier rack and fixed between the two crossbeams of the barrier rack, and the mounting plate is fixedly connected to the pressure regulating valve by bolts.

[0008] As a further embodiment of this utility model: in order to clamp the carton goods and facilitate slight angle adjustments to balance the force on both sides of the clamping arm plate, the clamping arm assembly includes a guide rail assembly, the guide rail assembly is vertically connected to the clamping arm plate through a connecting rib plate, the clamping arm plate is rotatably connected to a stabilizing frame, and the stabilizing frame is fixedly connected to a clamping plate.

[0009] As a further embodiment of this utility model: in order to ensure that sufficient clamping force can be applied to the upper end of the carton goods and that the clamping plate has both high strength and light weight, the height of the stabilizing frame is the same as that of the clamping plate, and the clamping plate is an integral aluminum sulfide plate.

[0010] As a further embodiment of this utility model: to prevent the bottom of the stabilizer from directly contacting the ground and causing wear, a pad is provided at the bottom of the stabilizer.

[0011] As a further embodiment of this utility model: in order to enable the hydraulic cylinder assembly to drive the clamping arm assembly to move, clamping arm plate blocks are fixedly provided at the top and bottom of the clamping arm plate, and a hydraulic cylinder support is fixedly provided on the side near the guide rail assembly, and the telescopic rod of the hydraulic cylinder assembly is fixedly connected to the hydraulic cylinder support.

[0012] As a further embodiment of this utility model: in order to enable the two clamping arm assemblies to move relative to each other to clamp goods, the base assembly includes a base plate, and two guide rail seats are installed on the front side of the base plate, which are arranged horizontally. The guide rail assembly is slidably connected in the guide rail seats, and the hydraulic cylinder assembly drives the two clamping arm assemblies to move horizontally relative to each other or opposite to each other along the length direction of the guide rail seats.

[0013] As a further embodiment of this utility model: to fix the cylinder barrel of the hydraulic cylinder assembly to the base assembly, the base plate is fixedly connected to the hydraulic cylinder assembly through a fixing seat, and the fixing seat is fixedly connected to the front side of the base plate.

[0014] As a further embodiment of this utility model: in order to prevent gravel from entering the guide rail seat and to provide auxiliary support for the goods, a baffle is fixedly connected to the bottom of the base plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a novel structure. By installing the pressure regulating valve on the retaining rack, it eliminates the need for drilling holes in the forklift mast, and also facilitates the removal and installation of cardboard boxes on the forklift. Furthermore, the matching height between the stabilizing frame and the clamping plate avoids the problem of the upper part of the clamping plate not being able to firmly press the top of tall boxes or high-center-of-gravity goods, thus improving clamping stability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2This is a schematic diagram of the barrier shelf of this utility model; Figure 3 This is a front view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 This is a schematic diagram of the base assembly of this utility model; Figure 6 This is a schematic diagram of the clamping arm assembly of this utility model; Figure 7 This is a schematic diagram of the stabilizer of this utility model; In the diagram: 1-Base assembly, 11-Base plate, 111-Fixed seat, 112-Lower hook, 12-Guide rail seat, 121-Wear-resistant block, 13-Baffle, 2-Clamping arm assembly, 21-Clamping arm plate, 211-Clamping arm plate stop block, 212-Hydraulic cylinder support, 22-Stabilizing frame, 221-Padded block, 222-Stabilizing frame stop block, 23-Clamping plate, 24-Connecting stiffener, 25-Guide rail assembly, 3-Hydraulic cylinder assembly, 31-Cover plate assembly, 4-Hydraulic system, 41-Control valve, 42-Pressure regulating valve, 5-Bar shelf, 51-Mounting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] Please see Figure 1-7 In this embodiment of the utility model, a forklift carton clamp includes a base assembly 1, two clamping arm assemblies 2 that are arranged opposite to each other and slidably connected to the base assembly 1, a cylinder assembly 3 fixed to the base assembly 1, and a hydraulic system 4 communicating with the cylinder assembly 3.

[0021] Reference Figure 1 and Figure 5 The base assembly 1 includes a base plate 11, with the side of the base plate 11 furthest from the operator defined as the front side. Two horizontally arranged guide rail seats 12 are mounted on the front side of the base plate 11. Wear-resistant blocks 121 are bolted into the guide rail seats 12 to reduce friction when the guide rail assembly 25 of the clamping arm assembly 2 slides within the guide rail seats 12, thus reducing wear on the guide rail seats 12. A hydraulic cylinder assembly 3 is fixedly connected to the base assembly 1. Fixed seats 111 are vertically welded to both sides of the base plate 11 to fix the cylinder of the hydraulic cylinder assembly 3. The fixed seats 111 are located on the front side of the base plate 11. A baffle 13 is bolted to the bottom of the base plate 11 to provide auxiliary support for the bottom of the goods and prevent gravel from entering the guide rail seats 12 and affecting the operation of the carton clamp. A lower hook 112 and an upper hook are mounted on the rear bottom of the base plate 11 for mounting the carton clamp onto a forklift. In this embodiment, to reduce its weight, the guide rail base 12 is made of 7005-T6 aluminum alloy.

[0022] Reference Figure 1 A retaining shelf 5 is fixedly connected to the top of the base plate 11. The vertical section of the L-shaped connecting plate at the bottom of the retaining shelf 5 is fastened to the top of the base plate 11 by bolts. The horizontal section of the L-shaped connecting plate at the bottom of the retaining shelf 5 is fastened to the top of the guide rail seat 12 located at the top of the base plate 11 by bolts. (Refer to...) Figure 2 The mounting plate 51 is welded to the upper and middle crossbeams of the barrier rack 5 on both sides, and the mounting plate 51 is located on one side edge of the barrier rack 5, so as to facilitate the adjustment of the pressure regulating valve 42.

[0023] Reference Figure 1 and Figure 3The hydraulic system 4 is connected to the cylinder assembly 3. The pressure regulating valve 42 of the hydraulic system 4 is fastened to the mounting plate 51 by a screw. The pressure regulating valve 42 is connected to the control valve 41 through a pipeline. The control valve 41 is fastened to the top center of the guide rail seat 12 located on the top of the base plate 11 by bolts. The control valve 41 is connected to the two cylinders of the cylinder assembly 3 through pipelines. A cover plate assembly 31 is fixed on the side of the cylinder assembly 3 near the clamping arm assembly 2 to protect the cylinder assembly 3 from external interference. In this embodiment, the pressure regulating valve 42 is a four-position pressure regulating valve.

[0024] Reference Figure 1 , Figure 6 and Figure 7 The clamping arm assembly 2 includes a guide rail assembly 25, which is connected to the clamping arm plate 21 via a connecting stiffener 24. The clamping arm plate 21 is connected to the clamping plate 23 via a stabilizer 22. The stabilizer 22 and the clamping plate 23 are fastened together with bolts. The stabilizer 22 and the clamping plate 23 are at the same height, allowing the stabilizer 22 to apply a horizontal pressure force to the top of the clamping plate 23, preventing the clamping plate from only receiving force from the lower part of the clamping plate from the stabilizer 22, thus avoiding the problem of insufficient clamping of the top of the goods due to no direct force on the top of the clamping plate. The guide rail assembly 25 is slidably connected within the guide rail seat 12 of the base assembly 1, allowing the clamping arm assembly 2 to drive the clamping plate 23 to move relative to or away from each other along the length of the guide rail seat 12. The clamping arm plate 21 is perpendicular to the guide rail assembly 25. The clamping plate 23 is specifically an integral aluminum sulfide plate made of high-strength alloy aluminum, giving the clamping plate 23 both high strength and light weight.

[0025] The clamping arm plate 21 is rotatably connected to the stabilizing frame 22 via a steel back bearing and a pin, allowing the stabilizing frame 22 to drive the clamping plate 23 to make slight angle adjustments according to the carton body, ensuring a closer fit between the clamping plate 23 and the surface of the goods, preventing uneven force on the goods and thus affecting clamping stability. Clamping arm plate stops 211 are welded to both the top and bottom of the clamping arm plate 21. One side of the clamping arm plate stop 211 is fixed to the clamping arm plate 21, and the other side extends beyond the edge of the clamping arm plate 21. The stabilizing frame 22 has stabilizing frame stops 222 welded to the corresponding positions on the clamping arm plate 21. One side of the stabilizing frame stop 222 is fixed to the edge of the stabilizing frame 22, and the other side extends beyond the edge of the stabilizing frame 22. The extended portion of the stabilizing frame stop 222 is located outside the clamping arm plate stop 211, used to limit the rotation range of the stabilizing frame 22 relative to the clamping arm plate 21. Two pads 221 are fixedly connected to both sides of the bottom end of the stabilizing frame 22 to prevent the bottom of the stabilizing frame 22 from directly contacting the ground and causing wear.

[0026] Reference Figure 6The clamping arm plate 21 has a cylinder support 212 welded to the side near the guide rail assembly 25. The cylinder support 212 is fixedly connected to the telescopic rod of the cylinder assembly 3, so that the cylinder assembly 3 can drive the two clamping arm assemblies 2 to move, thereby driving the two clamping plates 23 to move horizontally relative to each other or opposite to each other along the length direction of the guide rail seat 12.

[0027] This utility model has a novel structure and stable operation. When using this utility model, there is no need to drill holes in the forklift mast before installing the pressure regulating valve 42 on the forklift mast. Instead, the pressure regulating valve 42 is directly installed on the mounting plate 51 of the rack 5 with bolts. After the carton clamp attachment is installed on the forklift, the pressure regulating valve 42 is adjusted according to the size of the carton, the packaging strength and the specific weight of the goods to be transported, so as to set a suitable clamping force for the clamping plate 23. This ensures that the goods will not be damaged due to excessive clamping force or slip due to insufficient clamping force during the transportation process. Then, the extension and retraction of the telescopic rod of the oil cylinder assembly 3 is controlled by the hydraulic system 4, thereby driving the two clamping arm assemblies 2 to move the clamping plate 23 horizontally relative to each other or backward on the base assembly 1, thereby adjusting the distance between the clamping plates 23 to complete the clamping of the carton.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0029] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A forklift carton clamp, comprising a base assembly (1), two clamping arm assemblies (2) disposed opposite to and slidably connected to the base assembly (1), a cylinder assembly (3) fixed to the base assembly (1), and a hydraulic system (4) communicating with the cylinder assembly (3), characterized in that: The base assembly (1) is equipped with a retaining rack (5); the hydraulic system (4) includes a control valve (41) and a pressure regulating valve (42) that are interconnected. The control valve (41) is fixed on the top of the base assembly (1), and the pressure regulating valve (42) is fixedly connected to the retaining rack (5) by a mounting plate (51).

2. The carton clip according to claim 1, characterized in that: The mounting plate (51) is located on one side edge of the barrier rack (5) and fixed between the two crossbeams of the barrier rack (5). The mounting plate (51) is fixedly connected to the pressure regulating valve (42) by bolts.

3. The carton clip according to claim 1, characterized in that: The clamping arm assembly (2) includes a guide rail assembly (25), which is vertically connected to a clamping arm plate (21) via a connecting stiffener (24). The clamping arm plate (21) is rotatably connected to a stabilizer (22), and the stabilizer (22) is fixedly connected to a clamping plate (23).

4. The carton clip according to claim 3, characterized in that: The stabilizer (22) and the clamp (23) are at the same height, and the clamp (23) is an integral aluminum sulfide plate.

5. The carton clip according to claim 3, characterized in that: The bottom of the stabilizer (22) is provided with a pad (221).

6. The carton clip according to claim 3, characterized in that: The clamping arm plate (21) is fixedly provided with clamping arm plate blocks (211) at the top and bottom, and a hydraulic cylinder support (212) is fixedly provided on the side near the guide rail assembly (25). The telescopic rod of the hydraulic cylinder assembly (3) is fixedly connected to the hydraulic cylinder support (212).

7. The carton clip according to claim 3, characterized in that: The base assembly (1) includes a base plate (11), and two guide rail seats (12) are installed on the front side of the base plate (11) and are arranged horizontally. The guide rail assembly (25) is slidably connected in the guide rail seat (12). The hydraulic cylinder assembly (3) drives the two clamping arm assemblies (2) to move horizontally relative to each other or opposite to each other along the length direction of the guide rail seat (12).

8. The carton clip according to claim 7, characterized in that: The base plate (11) is fixedly connected to the cylinder assembly (3) via a fixing seat (111), and the fixing seat (111) is fixedly connected to the front side of the base plate (11).

9. The carton clip according to claim 7, characterized in that: A baffle (13) is fixedly connected to the bottom of the base plate (11).

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