Flat hanging tongs
By designing a flat hanging pliers including a clamp frame, a clamp plate, a clamp, a shaft cylinder, a rotary disc, a wheel chain and a choke, the problem of difficult to ensure clamping force and stability during the lifting process of flat hanging pliers in the prior art is solved, and a stable clamping force and clamping angle is achieved, and the practicality and applicability of the flat hanging pliers are improved.
Patent Information
- Application Number
- CN202420609777.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-27
AI Technical Summary
During the lifting process, existing flat lifting pliers are affected by the material weight load and clamping width, making it difficult to ensure clamping force and stability.
A flat suspended pliers including pliers, pliers, pliers, pliers, pliers, wheel chains and pliers are designed. The linkage between pliers and pliers is achieved through the movement of the pliers and wheel chains in the pliers. The pliers and the pliers are combined with the pliers and the integrated pliers to ensure the stability of clamping force and clamping angle.
The flat lifting pliers can maintain a stable clamping force and clamping angle during the lifting process, avoid force direction losses, and improve the practicality and applicability of the flat lifting pliers.
Smart Images
Figure CN222556328U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting clamps, and particularly relates to a flat lifting clamp. Background Art
[0002] Steel plate lifting clamps are divided into horizontal lifting steel plate lifting clamps, vertical lifting steel plate lifting clamps, DHQL type flat lifting clamps, DSQA type vertical lifting clamps, vertical lifting steel plate lifting clamps, DSQK type vertical lifting clamps, DHQA type flat lifting clamps and other steel plate lifting clamps according to different usage methods. Such products are needed in workplaces such as shipyards, steel structure installation, steel markets, and mechanical processing.
[0003] The flat lifting clamp has the characteristics of light weight, simple structure and easy use. Usually, the lifting work can be completed with the cooperation of electric hoist or truck crane. However, in the actual lifting process, due to the limitation of the flat lifting method, it only has high stability when clamping and lifting flat surface materials. In addition, due to the influence of the weight load and clamping width of the flat surface material, there is a certain force direction loss between the actual flat lifting sling connection point and the flat lifting clamping point, which limits the clamping force of the existing flat lifting clamp. Utility Model Content
[0004] In view of the above technical problems existing in the prior art, a flat lifting clamp is provided to solve the problem that the flat lifting clamp in the prior art is greatly affected by the weight load of the lifting material and the clamping width, and it is difficult to ensure its clamping force and clamping stability.
[0005] The purpose and effect of the utility model are achieved by the following specific technical means:
[0006] A flat lifting clamp comprises a clamp frame and a clamp plate, wherein the clamp frame is an L-shaped metal plate body, the clamp plate is arranged on one end of the clamp frame, and an adjustment slot is arranged at an opening of the clamp frame at one end close to the clamp plate, and the clamp plate is extended into the adjustment slot with a T-shaped head;
[0007] The clamp frame is hingedly provided with a clamp at one end relative to the clamp plate, and a rotating shaft cylinder is provided through the hinged end of the clamp and the clamp frame, a rotating disk coaxially matched with the core is provided in the rotating shaft cylinder, and a wheel chain is arranged around the rotating disk and the T-shaped head, and the wheel chain rotates with a rotating wheel at the L-structure angle of the clamp frame;
[0008] A sling is inserted and arranged on the clamp, and an engagement frame is extended from the sling into the rotating shaft tube, and a locking bracket which is inserted and engaged with the rotating disk is fixed at the end of the engagement frame.
[0009] A further preferred solution is that the clamp is a flat hook type metal plate surface clamp, and wear marks are distributed on the plane of the clamp close to the clamp plate.
[0010] A further preferred solution is that a hook groove is formed between the clamp and the clamp frame and the clamp plate.
[0011] A further preferred solution is that the rotation range of the turntable and the clamp is less than °.
[0012] A further preferred solution: the lock tray is a U-shaped clip, and a rubber gasket is fixed to the clamping opening of the lock tray.
[0013] A further preferred solution is that the articulator is slidably connected to the clamp frame, and the articulator can separate the locking tray from the rotating disk by plugging and unplugging.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] This type of flat lifting pliers utilizes a pliers and a pliers plate structure that can be adjusted in coordination with each other. The pliers and the pliers plate can be linked together through the movement of a turntable and a wheel chain in a rotating shaft cylinder from the opening of the pliers body to a locked state. The turntable structure is locked in conjunction with a sling and an integrated bite frame to ensure stable clamping force and clamping angle of the flat lifting pliers during the lifting process, thereby avoiding the problems existing in the flat lifting pliers in the prior art and improving the practicality and applicability of the flat lifting pliers. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the internal plane structure of the utility model;
[0018] Figure 3 It is a schematic diagram of the opening state of the utility model.
[0019] Markings in the figure: 1- clamp frame; 2- clamp plate; 3- clamp; 4- lifting device; 5- rotating shaft cylinder; 6- snap frame; 7- turntable; 8- wheel chain; 9- locking support; 10- rotating wheel; 11- T-head; 12- adjusting slot. DETAILED DESCRIPTION
[0020] See also Figure 1-3 , the embodiments of the utility model are further described;
[0021] A flat lifting clamp comprises a clamp frame 1 and a clamp plate 2, wherein the clamp frame 1 is an L-shaped metal plate body, the clamp plate 2 is arranged on one end of the clamp frame 1, and the clamp frame 1 is provided with an adjustment slot 12 at an opening at one end close to the clamp plate 2, and the clamp plate 2 is provided with a T-shaped head 11 extending into the adjustment slot 12;
[0022] A clamp 3 is hingedly provided at one end of the clamp frame 1 relative to the clamp plate 2, and a rotating shaft cylinder 5 is provided through the hinged end of the clamp 3 and the clamp frame 1, a rotating disk 7 coaxially matched with the rotating shaft cylinder 5 is provided, and a wheel chain 8 is arranged around the rotating disk 7 and the T-shaped head 11, and the wheel chain 8 is rotatably matched with a rotating wheel 10 at the L-structure angle of the clamp frame 1;
[0023] A hanger 4 is inserted and arranged on the clamp 3, and an engaging frame 6 is extended from the hanger 4 into the rotating shaft tube 5, and a locking support 9 is fixed at the end of the engaging frame 6 to engage with the rotating disk 7;
[0024] like Figure 2 , 3 As shown, the flat lifting pliers specifically utilizes the activities of the turntable 7, the rotating wheel 10 and the wheel chain 8 to realize the longitudinal adjustment of the pliers 2, that is, while adjusting the axial rotation angle of the clamp 3 along the rotating shaft tube 5, the synchronous rotation of the turntable 7 is utilized to mobilize the wheel chain 8 to pull the T-head 11 along the rotating wheel 10, that is, the pliers 2 are controlled to make relative longitudinal activity adjustment along the direction of the adjustment groove 12, and vice versa, to control the opening distance of the flat lifting pliers, that is, to complete the two active states of opening and closing in the figure. During lifting, the sling 4 is used as the lifting connection point, and the sling 4, the engaging frame 6 and the turntable 7 distributed in the coaxial position are utilized to ensure that the lifting tension and the position of the clamping point of the flat lifting pliers are maintained at a relatively small angle, thereby ensuring the force direction stability of the entire flat lifting method, and at the same time, the turntable 7 can be locked by the plug-in engagement of the lock support 9 and the turntable 7, that is, the longitudinal tension is further used to further strengthen the angle stability of the turntable 7 in the closed state, thereby ensuring the lifting clamping force and the clamping stability of the flat lifting pliers.
[0025] Furthermore, the clamp 3 is a flat hook type metal plate surface clamp, and the plane of the clamp 3 close to the clamp plate 2 is distributed with wear marks, such as Figure 3 As shown, the grinding grooves on the bottom surface of the clamp 3 are used to engage with the clamp plate 2 to clamp and fix the clamping plane of the material to be lifted. The grinding grooves are used to increase the friction between the end of the clamp 3 and the lifting material to ensure the clamping effect.
[0026] Furthermore, a hook groove is formed between the clamp 3 and the clamp frame 1 and the clamp plate 2. Compared with the horizontal lifting method, the horizontal lifting clamp can also perform vertical lifting through the hook groove formed between the clamp 3 and the clamp frame 1 and the clamp plate 2 in combination with the clamp structure of the clamp 3, thereby expanding the functionality and application scope of the horizontal lifting clamp.
[0027] Furthermore, the rotation range of the turntable 7 and the clamp 3 is less than 45°. Figure 3 As shown, by limiting the rotation range of the control turntable 7 and the clamp 3 within 45°, the maximum opening distance of the flat lifting tongs is maintained, and the T-shaped head 11 is maintained in the notch end of the adjustment slot 12 to prevent the T-shaped head 11 from separating from the adjustment slot 12, that is, to prevent the clamp plate 2 from detaching from the clamp frame 1.
[0028] Furthermore, the lock tray 9 is a U-shaped clip, and a rubber gasket is fixed to the clamping opening of the lock tray 9. When the lock tray 9 is inserted into the turntable 7 and engages with it, the rubber gasket can provide damping for the connecting surface between the lock tray 9 and the turntable 7, so as to further improve the stability of the lock tray 9 and the turntable 7 when they are engaged.
[0029] Furthermore, the articulating frame 6 is slidably connected to the clamp frame 1, and the articulating frame 6 is separated from the lock support 9 and the turntable 7 by plugging and unplugging. By adopting a sliding matching structure, the articulating frame 6 and the sling 4 can be pressed inwardly into the clamp 3 to separate the engagement of the lock support 9 and the turntable 7, and the articulating frame 6 can be automatically pulled out of the articulating frame 6 in the direction of the lifting pulling force during lifting to engage the lock support 9 to the turntable 7. This switch-type locking structure allows the sling to be released from its locked state according to human control when not being lifted, thereby preventing the flat lifting tongs from automatically unhooking when no force is applied.
Claims
1. A flat lifting clamp, characterized in that: The invention comprises a clamp frame (1) and a clamp plate (2), wherein the clamp frame (1) is an L-shaped metal plate, the clamp plate (2) is arranged on one end of the clamp frame (1), and the clamp frame (1) is provided with an adjustment groove (12) at an opening at one end close to the clamp plate (2), and the clamp plate (2) is provided with a T-shaped head (11) extending into the adjustment groove (12); The clamp frame (1) is hingedly provided with a clamp (3) at one end relative to the clamp plate (2), and a rotating shaft cylinder (5) is provided through the hinged end of the clamp (3) and the clamp frame (1), a rotating disk (7) coaxially matched with the core is provided in the rotating shaft cylinder (5), and a wheel chain (8) is arranged around the rotating disk (7) and the T-shaped head (11), and the wheel chain (8) is rotatably matched with a rotating wheel (10) at the L-structure angle of the clamp frame (1); The clamp (3) is plugged with a sling (4), and the sling (4) is provided with an articulating frame (6) extending into the rotating shaft tube (5), and a locking bracket (9) is fixed at the end of the articulating frame (6) and is plugged and engaged with the rotating disk (7).
2. A horizontal lifting clamp according to claim 1, characterized in that: The clamp (3) is a flat hook type metal plate surface clamp, and wear marks are distributed on the plane of the clamp (3) close to the clamp plate (2).
3. A horizontal lifting clamp according to claim 2, characterized in that: A hook groove is formed between the clamp (3), the clamp frame (1) and the clamp plate (2).
4. A horizontal lifting clamp according to claim 1, characterized in that: The rotation range of the rotating disk (7) and the clamp (3) is less than 45°.
5. A horizontal lifting clamp according to claim 1, characterized in that: The locking bracket (9) is a U-shaped clamp, and a rubber gasket is fixed to the clamping opening of the locking bracket (9).
6. A horizontal lifting clamp according to claim 1, characterized in that: The articulating frame (6) is slidably connected to the clamp frame (1), and the articulating frame (6) can separate the locking support (9) and the rotating disk (7) by plugging and unplugging.