Vertical holding clamp of balance forklift

By designing a vertical clamp for balance forklifts, the problem of forklifts being unable to handle rolled floor heating pipes was solved, enabling flexible gripping and stable clamping of rolled floor heating pipes of different diameters, thus improving handling efficiency and safety.

CN223983437UActive Publication Date: 2026-03-10RIFENG ENTERPRISE (TIANJIN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Forklifts cannot directly transport rolled floor heating pipes, and the different lengths of the pipes result in different rolled diameters, increasing the difficulty of mechanized transportation.

Method used

Design a vertical clamp for a balance forklift, including a base plate, a robotic arm, a drive mechanism, and a docking mechanism. The robotic arm has different lengths and is arc-shaped. The drive mechanism realizes the speed difference and automatically adjusts the clamping angle to adapt to the gripping of roll-type floor heating pipes of different diameters.

Benefits of technology

It improves the applicability and efficiency of handling rolled floor heating pipes, ensures clamping stability, avoids damage to the surface of the floor heating pipes, and enhances the safety and efficiency of the handling process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223983437U_ABST
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Abstract

The utility model provides a balance forklift vertical holding clamp which is characterized in that an accessory connecting mechanism is arranged on one side of a base plate; the two mechanical arms are hinged to the side, away from the forklift, of the base plate correspondingly and arranged in the horizontal direction. The two mechanical arms are different in length and are respectively a long arm and a short arm; the long arm and the short arm are arc-shaped respectively, and the concave surfaces are positioned on the sides, close to each other, of the long arm and the short arm respectively; the driving mechanism is installed on the base plate, connected with the mechanical arm and used for driving the mechanical arm to rotate relatively. The butt joint mechanism is hinged to the end, away from the base plate, of the mechanical arm. By means of the long arm and the short arm which are different in length and are in an arc shape, when coiled floor heating pipes with different diameters are grabbed, more flexible grabbing action can be achieved through the rotating speed difference; the long arm expands the overall grabbing radius and can adapt to various package specifications, the short arm is relatively flexible, the clamping capacity is improved through three-point contact, and therefore the carrying applicability of the packaged floor heating pipe is greatly improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of forklift accessories, in particular to a balanced forklift vertical holding clamp. BACKGROUND

[0002] The forklift takes the fork as the main cargo taking device, lifts the cargo through the hydraulic system, and realizes horizontal carrying in combination with the tire type driving system; the forklift has the characteristics of high mechanization degree, flexible maneuvering and strong adaptability, and can replace manual work to complete heavy object carrying and significantly improve efficiency.

[0003] After the production of the floor heating pipe, the floor heating pipe is usually stored and transported in a coiled form, and the forklift cannot directly carry the coiled floor heating pipe; meanwhile, the coiled diameter is different due to the different lengths of the floor heating pipe, which further increases the difficulty of mechanized transportation; therefore, the above problems need to be solved. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is expected to provide a balanced forklift vertical holding clamp.

[0005] The application provides a balanced forklift vertical holding clamp, which comprises

[0006] A base plate, one side of the base plate is provided with an accessory connecting mechanism for connecting with a forklift;

[0007] Mechanical arms, the number of the mechanical arms includes two, which are respectively hingedly connected to one side of the base plate away from the forklift and arranged in a horizontal direction;

[0008] The lengths of the two mechanical arms are different, and the lengths are respectively long arm and short arm;

[0009] The long arm and the short arm are respectively arc-shaped, and the concave surfaces are respectively located on the sides close to each other of the long arm and the short arm;

[0010] A driving mechanism, the driving mechanism is installed on the base plate and connected with the mechanical arms, and is used for driving the relative rotation of the mechanical arms;

[0011] A docking mechanism, the docking mechanism is hingedly installed at one end of the mechanical arm away from the base plate, and is used for automatically adjusting the clamping angle.

[0012] Further,

[0013] The base plate and the mechanical arms are connected through a mounting seat;

[0014] The mounting seat is fixedly installed at the middle of the base plate, and the hingedly penetrating holes are respectively arranged at the two ends in the horizontal direction;

[0015] One end of the mechanical arm away from the docking mechanism is provided with a U-shaped clamping part, and the U-shaped clamping part is connected with the mounting seat through a hinge shaft.

[0016] The hinge shaft is located inside the hinge hole, and both ends pass through the snap-fit ​​portion.

[0017] Furthermore,

[0018] The drive mechanism includes a first hydraulic cylinder connected to the long arm and a second hydraulic cylinder connected to the short arm;

[0019] The cylinder body of the first hydraulic cylinder is hinged to the base plate and is hinged to the long arm via the first piston rod;

[0020] The cylinder body of the second hydraulic cylinder is hinged to the base plate and is hinged to the short arm via the second piston rod.

[0021] Furthermore,

[0022] The extension length of the first hydraulic cylinder is greater than that of the second hydraulic cylinder, which is used to create a speed difference;

[0023] The radius of the long arm is relatively larger than that of the short arm, which is used to increase the gripping radius.

[0024] Furthermore,

[0025] The docking mechanism includes a docking plate;

[0026] The docking plate is hinged to the end of the robotic arm, and the end away from the robotic arm is arc-shaped;

[0027] The mating plate is also provided with a first rubber layer;

[0028] The first rubber layer is located on the concave surface of the mating plate.

[0029] Furthermore,

[0030] The robotic arm is also provided with a second rubber layer;

[0031] The second rubber layer is attached to the concave surface of the robotic arm.

[0032] Furthermore,

[0033] The attachment connection mechanism includes a hook located on the side of the base plate away from the robotic arm;

[0034] The hook is fixedly installed at the top of the base plate for attaching to the forklift;

[0035] The bottom of the substrate is also provided with a through threaded hole, which is used to lock the forklift in place with bolts.

[0036] The advantages and positive effects of this application are:

[0037] This technical solution utilizes two curved arms of different lengths to achieve more flexible gripping motions when handling rolls of underfloor heating pipes of varying diameters. The longer arm has a relatively larger radius, expanding the overall gripping radius and accommodating various roll specifications. The shorter arm is more flexible and enhances gripping capacity through three-point contact, thereby greatly improving the applicability of handling rolls of underfloor heating pipes. This solves the problem of handling rolls of underfloor heating pipes of different diameters and improves handling efficiency. Simultaneously, the ends of the robotic arms are hinged with docking mechanisms, which automatically adjust the clamping angle during clamping, allowing for better contact with the surface of the roll of underfloor heating pipes. Attached Figure Description

[0038] Fig. 1 This is a schematic diagram of the structure of the vertical clamp of the counterbalance forklift provided in an embodiment of this application;

[0039] Fig. 2 This is a top view of the vertical clamp of the counterbalance forklift provided in an embodiment of this application.

[0040] The text labels in the figure are as follows: 100-substrate; 110-mounting base; 200-long arm; 210-first hydraulic cylinder; 300-short arm; 310-second hydraulic cylinder; 400-dating plate; 410-first rubber layer. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0042] Please refer to Figs. 1-2 This embodiment provides a vertical clamp for a counterbalanced forklift, including a base plate 100. One side of the base plate 100 is provided with an attachment connection mechanism for connecting to a forklift. Two robotic arms are provided, each hinged to the side of the base plate 100 away from the forklift and arranged horizontally. The two robotic arms have different lengths, a long arm 200 and a short arm 300. The long arm 200 and the short arm 300 are both arc-shaped, with concave surfaces located on the sides of the long arm 200 and the short arm 300 that are close to each other. A drive mechanism is mounted on the base plate 100 and connected to the robotic arms for driving the robotic arms to rotate relative to each other. A docking mechanism is hinged to the end of the robotic arm away from the base plate 100 for automatically adjusting the clamping angle.

[0043] In this embodiment, the base plate 100 is provided with an attachment connection mechanism on one side, which can form a stable connection with the forklift, and a robotic arm on the other side, which can clamp and fix the rolled floor heating pipe. Combined with the lifting function of the forklift itself, the rolled floor heating pipe can be transported to the designated position, thereby effectively solving the problem that conventional forklifts cannot handle rolled objects.

[0044] In a preferred embodiment, the substrate 100 is connected to the robotic arm via a mounting base 110; the mounting base 110 is fixedly mounted at the middle of the substrate 100, and has through hinge holes at both ends in the horizontal direction; the end of the robotic arm away from the docking mechanism has a U-shaped snap-fit ​​portion, and is connected to the mounting base 110 via a hinge shaft; the hinge shaft is located in the hinge hole, and its two ends pass through the snap-fit ​​portion.

[0045] In this embodiment, the mounting base 110 is fixed in the middle of the base plate 100. The long arm 200 and the short arm 300 are connected to the mounting base 110 through a hinge shaft. This connection method allows the robotic arm to rotate flexibly. When it is necessary to grasp a large-diameter roll of floor heating pipe, the long arm 200, with its larger radius, is the first to contact the floor heating pipe. As the movement continues, the short arm 300 also gradually approaches the floor heating pipe. Finally, the long arm 200, the short arm 300, and the docking mechanism form a three-point contact, stably clamping the roll of floor heating pipe. Because the long arm 200 has a large radius, the overall grasping radius is expanded, which can accommodate large-size rolls of floor heating pipe. The short arm 300 is relatively flexible and can better fit the surface of the floor heating pipe during the grasping process, improving the gripping stability.

[0046] In a preferred embodiment, the drive mechanism includes a first cylinder 210 connected to the long arm 200 and a second cylinder 310 connected to the short arm 300; the cylinder body of the first cylinder 210 is hingedly mounted on the base plate 100 and is hinged to the long arm 200 via a first piston rod; the cylinder body of the second cylinder 310 is hingedly mounted on the base plate 100 and is hinged to the short arm 300 via a second piston rod.

[0047] In a preferred embodiment, the extension length of the first cylinder 210 is greater than that of the second cylinder 310 to create a speed difference; the radius of the long arm 200 is relatively larger than that of the short arm 300 to increase the gripping radius.

[0048] In this embodiment, the input flow rate of the first hydraulic cylinder 210 is greater than that of the second hydraulic cylinder 310, so that the rotation speed of the long arm 200 can be greater than that of the short arm 300. By utilizing the time difference in rotation speed between the two, the center of the rolled floor heating pipe can be automatically adjusted, thereby ensuring the stability of the clamping.

[0049] In a preferred embodiment, the docking mechanism includes a docking plate 400; the docking plate 400 is hinged to the end of the robotic arm, and the end away from the robotic arm is arc-shaped; the docking plate 400 is also provided with a first rubber layer 410; the first rubber layer 410 is located on the concave surface of the docking plate 400.

[0050] In a preferred embodiment, the robotic arm is further provided with a second rubber layer; the second rubber layer is fitted onto the concave surface of the robotic arm.

[0051] In this embodiment, the docking plate 400 of the docking mechanism is hinged to the end of the robotic arm. When clamping the coiled floor heating pipe, the docking plate 400 can automatically adjust its angle. The first rubber layer 410 on its concave surface and the second rubber layer on the concave surface of the robotic arm increase the friction between the floor heating pipe and the floor heating pipe, while avoiding damage to the surface of the floor heating pipe and ensuring the integrity of the floor heating pipe during transportation.

[0052] In a preferred embodiment, the attachment connection mechanism includes a hook located on the side of the base plate 100 away from the robotic arm; the hook is fixedly installed at the top of the base plate 100 for attaching with the forklift; the bottom of the base plate 100 is also provided with a through threaded hole for locking with the forklift by bolts.

[0053] In this embodiment, the base plate 100 is connected to the forklift via an attachment connection mechanism. After the hook of the attachment connection mechanism is hung on the corresponding position of the forklift, the bolt is then tightened by passing through the threaded hole at the bottom of the base plate 100 to ensure that the clamp is securely connected to the forklift and will not shake or fall off during transportation.

[0054] In a preferred embodiment, sensors can be installed on the substrate 100 to monitor the working status of the gripper in real time, such as the clamping force of the robotic arm and the angle change of the docking mechanism. When the clamping force is too large or too small, the sensors will feed back the signal to the control system of the forklift. The control system will adjust the extension and retraction of the first cylinder 210 and the second cylinder 310 in a timely manner to ensure the safe and stable gripping process. In addition, the cylinders of the drive mechanism can be optimized by using a more efficient hydraulic pump to improve the response speed of the cylinders, making the opening and closing action of the robotic arm faster and further improving the handling efficiency. At the same time, the material of the rubber layer can be improved by selecting a rubber material with better wear resistance and anti-slip properties to extend the service life of the rubber layer and enhance the practicality of the gripper.

[0055] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A balanced forklift vertical hugger, characterized by, The utility model relates to a balanced forklift vertical embrace clamp, including The one side of substrate (100) is equipped with the tool connection mechanism for connecting with forklift, The number of mechanical arm includes two, and the one side of substrate (100) is away from forklift respectively, and along horizontal direction arrangement, The length of two mechanical arms is different, and is long arm (200) and short arm (300) respectively, The long arm (200) and short arm (300) are arc-shaped respectively, and the concave surface is located the one side of long arm (200) and short arm (300) respectively, Driving mechanism, driving mechanism is installed on substrate (100), and is connected with mechanical arm, is used for driving the relative rotation of mechanical arm, The docking mechanism is hingedly installed at the end of the mechanical arm away from the substrate (100), for automatically adjusting the clamping angle.

2. The balanced forklift vertical embrace clamp according to claim 1, wherein: The mounting seat (110) is fixedly installed at the middle of the substrate (100), and the through hinged holes are arranged at the both ends in the horizontal direction; The end of the mechanical arm away from the docking mechanism is provided with a U-shaped clamping portion, and is connected with the mounting seat (110) through a hinged shaft; The hinged shaft is located in the hinged hole, and the both ends penetrate the clamping portion.

3. The balanced forklift vertical embrace clamp according to claim 1, wherein: The driving mechanism includes a first oil cylinder (210) connected with the long arm (200) and a second oil cylinder (310) connected with the short arm (300); The cylinder body of the first oil cylinder (210) is hingedly installed on the substrate (100), and is hingedly connected with the long arm (200) through a first piston rod; The cylinder body of the second oil cylinder (310) is hingedly installed on the substrate (100), and is hingedly connected with the short arm (300) through a second piston rod.

4. The balanced forklift vertical embrace clamp according to claim 3, wherein: The extension length of the first oil cylinder (210) is greater than the extension length of the second oil cylinder (310), so as to form a speed difference; The radius of the long arm (200) is relatively greater than the radius of the short arm (300), so as to increase the grabbing radius.

5. The balanced forklift vertical embrace clamp according to claim 1, wherein: The docking mechanism includes a docking plate (400); The docking plate (400) is hingedly installed at the end of the mechanical arm, and the end away from the mechanical arm is arc-shaped; The first rubber layer (410) is located on the concave surface of the docking plate (400).

6. The balanced forklift vertical embrace clamp according to claim 1, wherein: The second rubber layer is further arranged on the mechanical arm; The second rubber layer is attached to the concave surface of the mechanical arm.

7. The balanced forklift vertical embrace clamp according to claim 1, wherein: ​ ​ The tool connecting mechanism comprises a hook on the side of the base plate (100) away from the mechanical arm; The hook is fixedly installed at the top of the base plate (100) and used for hooking with the forklift; The bottom of the base plate (100) is also provided with a threaded hole penetrating through, and the threaded hole is locked and connected with the forklift through a bolt.