Clamp leg structure

Abstract

The utility model discloses a leg clamping structure which comprises a supporting structure and a guiding assembly, the supporting structure comprises a vertical rod and a limiting block, the limiting block is located on one side of the vertical rod, and the limiting block is connected with the bottom end of the vertical rod. The guide assembly is provided with a first guide wheel which is rotatably installed on the vertical rod, the first guide wheel is located on the side, connected with the limiting block, of the vertical rod, and the first guide wheel can guide an object to be clamped to slide along the vertical rod. When the clamp is used, an object to be clamped can be clamped by the two oppositely arranged clamp legs, so that the two vertical rods clamp and press the object to be clamped, and when the object to be clamped slides relative to the vertical rods under the action of gravity, the first guide wheel can guide the object to be clamped to slide until the bottom end of the object to be clamped abuts against the limiting block. By means of the clamp leg structure, the to-be-clamped object can be guided to slide relative to the vertical rod through the first guide wheel, friction sliding cannot occur between the to-be-clamped object and the vertical rod, and then the to-be-clamped object is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the field of lifting tongs, and particularly to a tong leg structure. Background Art

[0002] The crane tongs are mainly devices that can vertically grasp heavy objects within a certain range. The crane tongs are divided into many types, among which the horizontal electric tongs are commonly used for the crane, and are mainly applied to metallurgical industries such as slab continuous casting, hot continuous rolling process, and cold rolling.

[0003] For the existing tongs, reference can be made to the patent with the application number CN201620989722.9. After the tongs clamp the material, under the action of gravity, the material will slide downward relative to the tong legs until the material is supported by the protrusions at the bottom of the tong legs. During the relative sliding process between the material and the tong legs, the tong legs are likely to scratch the surface of the material.

[0004] Therefore, how to avoid the material to be clamped from being scratched during the relative sliding process with the tong legs is a technical problem to be solved urgently. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a tong leg structure to solve the technical problem of how to avoid the material to be clamped from being scratched during the relative sliding process with the tong legs in the prior art.

[0006] The utility model provides a tong leg structure, which includes:

[0007] A support structure, which includes a vertical rod and a limit block. The limit block is located on one side of the vertical rod, and the limit block is connected to the bottom end of the vertical rod; and

[0008] A guiding component, which has a first guide wheel rotatably installed on the vertical rod, and the first guide wheel is located on the side of the vertical rod connected to the limit block. The first guide wheel can guide the material to be clamped to slide along the vertical rod.

[0009] In some embodiments, the support structure further includes a cross beam, and one end of the cross beam is connected to the top end of the vertical rod.

[0010] In some embodiments, a connection groove is opened at the top end of the vertical rod, and a part of the cross beam is embedded in the connection groove.

[0011] In some embodiments, a connection hole communicating with the connection groove is opened on the vertical rod, and a mating hole is opened on the cross beam. The vertical rod and the cross beam are connected to each other by bolts passing through the connection hole and the mating hole.

[0012] In some embodiments, a first installation groove is formed in the vertical rod. The first guide wheel includes a first wheel seat and a first wheel body. The first wheel seat is embedded in the first installation groove, and the first wheel body is rotatably installed on the first wheel seat.

[0013] In some embodiments, the guiding assembly further includes a second guide wheel, which is rotatably installed at the bottom end of the limiting block.

[0014] In some embodiments, a second installation groove is formed in the limiting block. The second guide wheel includes a second wheel seat and a second wheel body. The second wheel seat is embedded in the second installation groove, and the second wheel body is rotatably installed on the second wheel seat.

[0015] In some embodiments, the clamp leg structure further includes a buffer assembly. The buffer assembly includes a buffer seat and an elastic member. The buffer seat is located above the limiting block and can slide relative to the limiting block. One end of the elastic member is connected to the buffer seat, and the other end is connected to the limiting block, and it has an elastic force to move the buffer seat away from the limiting block.

[0016] In some embodiments, a guide hole is formed in the buffer seat, and the limiting block has a guide rod. The guide hole is sleeved on the guide rod so that the buffer seat slides along the guide rod.

[0017] In some embodiments, a limiting hole is formed in the buffer seat, and a threaded hole is formed in the limiting block. A bolt passes through the threaded hole and is screwed into the threaded hole to prevent the buffer seat from detaching from the guide rod.

[0018] Two oppositely arranged clamp legs can be used to clamp an object to be clamped, so that the two vertical rods clamp the object to be clamped. When the object to be clamped slides relative to the vertical rods under the action of gravity, the first guide wheel will guide the sliding of the object to be clamped until the bottom end of the object to be clamped presses against the limiting block. With the above clamp leg structure, the object to be clamped can be guided to slide relative to the vertical rods by the first guide wheel, and there will be no frictional sliding between the object to be clamped and the vertical rods, thereby avoiding scratching the object to be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the clamp leg structure provided by an embodiment of the present invention;

[0020] Figure 2 is a left view of the clamp leg structure provided by an embodiment of the present invention;

[0021] Figure 3 is a partial schematic diagram of the buffer assembly provided by an embodiment of the present invention;

[0022] Description of reference numerals: support structure 100, vertical rod 110, connection groove 111, connection hole 112, first installation groove 113, limit block 120, guide rod 121, second installation groove 122, screw hole 123, cross beam 130, mating hole 131, guiding assembly 200, first guide wheel 210, first wheel seat 211, first wheel body 212, second guide wheel 220, second wheel seat 221, second wheel body 222, buffer assembly 300, buffer seat 310, guide hole 311, limit hole 312, elastic member 320. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] In order to solve the technical problem of how to avoid the object to be clamped being scratched during the relative sliding of the object to be clamped with respect to the clamping legs, the present utility model provides a clamping leg structure, which can avoid direct frictional sliding between the clamping legs and the object to be clamped, thereby avoiding the problem that the object to be clamped is scratched by the clamping legs.

[0025] It should be noted that the clamping leg structure of the present utility model is used for but not limited to lifting tongs, etc. For the convenience of description, in the present utility model, only the application of the clamping leg structure to lifting tongs is taken as an example for description, and the principle of the clamping leg structure applied to other types of equipment is substantially the same as that applied to lifting tongs, and will not be elaborated herein one by one.

[0026] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of the clamping leg structure in an embodiment of the present utility model. The clamping leg structure includes a support structure 100 and a guiding assembly 200. The support structure 100 includes a vertical rod 110 and a limit block 120. The limit block 120 is located on one side of the vertical rod 110, and the limit block 120 is connected to the bottom end of the vertical rod 110. The guiding assembly 200 has a first guide wheel 210 rotatably installed on the vertical rod 110, and the first guide wheel 210 is located on the side of the vertical rod 110 connected to the limit block 120. The first guide wheel 210 can guide the object to be clamped to slide along the vertical rod 110.

[0027] In this embodiment, the object to be clamped can be clamped by two oppositely arranged clamping legs, so that the two vertical rods 110 clamp the object to be clamped. When the object to be clamped slides relative to the vertical rod 110 under the action of gravity, the first guide wheel 210 will guide the object to be clamped to slide until the bottom end of the object to be clamped presses against the limit block 120. By using the above clamping leg structure, the object to be clamped can be guided to slide relative to the vertical rod 110 by the first guide wheel 210, and no frictional sliding will occur between the object to be clamped and the vertical rod 110, thereby avoiding the object to be clamped from being scratched.

[0028] In some embodiments, the support structure 100 further includes a crossbeam 130 , one end of which is connected to the top of the vertical rod 110 .

[0029] In this embodiment, one end of the horizontal beam 130 is connected to the top of the vertical rod 110, and the horizontal beam 130 is used to connect to the driving component so that the driving component drives the vertical rod 110 and the limit block 120 to move through the horizontal beam 130, thereby driving the vertical rod 110 and the limit block 120 to clamp the object to be clamped.

[0030] In some embodiments, a connection slot 111 is defined at a top end of the vertical rod 110 , and the cross beam 130 is partially embedded in the connection slot 111 .

[0031] In this embodiment, since the cross beam 130 is partially embedded in the connection groove 111 , the cross beam 130 and the vertical rod 110 are stably connected to each other.

[0032] Based on the above embodiments, in some embodiments, the vertical rod 110 is provided with a connecting hole 112 connected to the connecting groove 111, and the cross beam 130 is provided with a matching hole 131, and bolts are passed through the connecting hole 112 and the matching hole 131 to connect the vertical rod 110 and the cross beam 130 to each other.

[0033] In this embodiment, bolts are passed through the connecting holes 112 and the matching holes 131 to connect the vertical rod 110 and the horizontal beam 130 to each other, thereby preventing the horizontal beam 130 from being separated from the connecting groove 111 .

[0034] In some embodiments, the vertical rod 110 is provided with a first mounting groove 113 , and the first guide wheel 210 includes a first wheel seat 211 and a first wheel body 212 . The first wheel seat 211 is embedded in the first mounting groove 113 , and the first wheel body 212 is rotatably mounted on the first wheel seat 211 .

[0035] In this embodiment, the first wheel body 212 is rotatably mounted on the first wheel seat 211 , and the first wheel seat 211 is embedded in the first mounting groove 113 , so that the first guide wheel 210 can be stably mounted on the vertical rod 110 .

[0036] In some embodiments, the guide assembly 200 further includes a second guide wheel 220 rotatably mounted on the bottom end of the limiting block 120 .

[0037] In this embodiment, since the second guide wheel 220 is rotatably installed at the bottom end of the limit block 120, when the limit block 120 is close to the ground, the second guide wheel 220 can guide the limit block 120 to slide relative to the ground, avoiding direct friction sliding between the limit block 120 and the ground.

[0038] Based on the above embodiments, in some of these embodiments, the limiting block 120 is provided with a second installation groove 122. The second guide wheel 220 includes a second wheel seat 221 and a second wheel body 222. The second wheel seat 221 is embedded in the second installation groove 122, and the second wheel body 222 is rotatably installed on the second wheel seat 221.

[0039] In this embodiment, since the second wheel seat 221 is embedded in the second installation groove 122 and the second wheel body 222 is rotatably installed on the second wheel seat 221, the second guide wheel 220 can be stably installed on the limiting block 120.

[0040] In some of these embodiments, the clamp leg structure further includes a buffer assembly 300. The buffer assembly 300 includes a buffer seat 310 and an elastic member 320. The buffer seat 310 is located above the limiting block 120, and the buffer seat 310 can slide relative to the limiting block 120. One end of the elastic member 320 is connected to the buffer seat 310, and the other end is connected to the limiting block 120, and it has an elastic force to move the buffer seat 310 away from the limiting block 120.

[0041] In this embodiment, when the object to be clamped slides relative to the vertical rod 110 under the action of gravity, the bottom end of the object to be clamped will finally contact the buffer seat 310. Due to the elastic force of the buffer seat 310 moving away from the limiting block 120, the object to be clamped can be buffered to avoid being damaged by hitting the limiting block 120.

[0042] In some of these embodiments, the buffer seat 310 is provided with a guide hole 311, and the limiting block 120 has a guide rod 121. The guide hole 311 is sleeved on the guide rod 121 to enable the buffer seat 310 to slide along the guide rod 121.

[0043] In this embodiment, since the guide hole 311 is sleeved on the guide rod 121, the buffer seat 310 can slide along the guide rod 121.

[0044] In some of these embodiments, the buffer seat 310 is provided with a limiting hole 312, and the limiting block 120 is provided with a threaded hole 123. A bolt passes through the threaded hole 123 and is screwed into the threaded hole 123 to prevent the buffer seat 310 from detaching from the guide rod 121.

[0045] In this embodiment, under the limiting action of the bolt, the buffer seat 310 can be prevented from detaching from the guide rod 121.

[0046] For a better understanding of the present invention, the following is a detailed description of the technical solution of the present invention in conjunction with Figures 1 to 3 a detailed description of the technical solution of the present invention:

[0047] The object to be clamped can be clamped by two oppositely arranged clamping legs, such that the two vertical rods 110 clamp the object to be clamped. When the object to be clamped slides relative to the vertical rods 110 under the action of gravity, the first guide wheel 210 will guide the sliding of the object to be clamped. After the object to be clamped slides relative to the vertical rods 110 under the action of gravity, the bottom end of the object to be clamped will finally contact the buffer seat 310. Due to the elastic force of the buffer seat 310 away from the limit block 120, the object to be clamped can be buffered, avoiding the object to be clamped from bumping against the limit block 120 and being damaged. By using the above clamping leg structure, the object to be clamped can be guided to slide relative to the vertical rods 110 by the first guide wheel 210, and no frictional sliding will occur between the object to be clamped and the vertical rods 110, thereby avoiding the object to be clamped from being scratched.

[0048] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A clamp leg structure, characterized in that, Comprising: A support structure, which includes a vertical rod and a limiting block. The limiting block is located on one side of the vertical rod, and the limiting block is connected to the bottom end of the vertical rod; And A guiding assembly, which has a first guide wheel rotatably installed on the vertical rod, and the first guide wheel is located on the side of the vertical rod connected to the limiting block. The first guide wheel can guide the object to be clamped to slide along the vertical rod.

2. The leg structure according to claim 1, characterized in that, The support structure further includes a cross beam, and one end of the cross beam is connected to the top end of the vertical rod.

3. The clamping leg structure according to claim 2, wherein, A connection groove is formed at the top end of the vertical rod, and a part of the cross beam is embedded in the connection groove.

4. The leg structure according to claim 3, characterized in that, A connection hole communicating with the connection groove is formed in the vertical rod, and a mating hole is formed in the cross beam. A bolt passes through the connection hole and the mating hole to connect the vertical rod and the cross beam to each other.

5. The leg structure according to claim 1, characterized in that, A first installation groove is formed in the vertical rod. The first guide wheel includes a first wheel seat and a first wheel body. The first wheel seat is embedded in the first installation groove, and the first wheel body is rotatably installed on the first wheel seat.

6. The leg structure according to claim 1, wherein The guiding assembly further includes a second guide wheel, and the second guide wheel is rotatably installed at the bottom end of the limiting block.

7. The leg structure according to claim 6, characterized in that, A second installation groove is formed in the limiting block. The second guide wheel includes a second wheel seat and a second wheel body. The second wheel seat is embedded in the second installation groove, and the second wheel body is rotatably installed on the second wheel seat.

8. The clamping leg structure according to claim 1, characterized in that, The clamping leg structure further includes a buffer assembly, which includes a buffer seat and an elastic member. The buffer seat is located above the limiting block, and the buffer seat can slide relative to the limiting block. One end of the elastic member is connected to the buffer seat, and the other end is connected to the limiting block. It has an elastic force to move the buffer seat away from the limiting block.

9. The leg structure according to claim 8, characterized in that, A guide hole is formed in the buffer seat, and the limiting block has a guide rod. The guide hole is sleeved on the guide rod to enable the buffer seat to slide along the guide rod.

10. The leg structure according to claim 9, wherein A limiting hole is formed in the buffer seat, and a threaded hole is formed in the limiting block. A bolt passes through the threaded hole and is screwed into the threaded hole to prevent the buffer seat from detaching from the guide rod.

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