Sleeve clamp

Abstract

The utility model belongs to the technical field of pile foundation construction, and particularly relates to a casing pipe clamp which comprises a base, a support assembly and a clamping assembly, the clamping assembly comprises two clamping main plates, a casing pipe fixing piece and a limiting piece, the clamping main plates slide on the support assembly, and grooves are formed in the sides, close to a casing pipe, of the clamping main plates; the sleeve fixing piece is fixedly connected with the sleeve and located on the upper surface of the clamping main plate. And limiting pieces are arranged on the sides, away from the sleeves, of the clamping main plates correspondingly, and the clamping main plates are clamped by the limiting pieces. Through the clamping main plate and the limiting piece which are arranged on the support assembly in a sliding mode, the clamping main plate slides into the outer wall of the abutting sleeve and then is limited through the limiting piece, the sleeve is clamped and fixed, time and labor are saved, and the labor intensity is reduced; meanwhile, the sleeve fixing piece is fixed to the sleeve, the sleeve fixing piece is clamped to the clamping main plate through the gravity of the sleeve, the sleeve is prevented from falling, and firmness and stability are achieved; and the groove in the clamping main plate is manufactured according to the size of the sleeve, so that the multi-pipe-diameter sleeve can be fixed, and the compatibility is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation construction, and particularly relates to a casing clamp. Background Art

[0002] During the construction of rotary drilling piling, in order to prevent the collapse of the pile hole, a casing is used to protect the pile hole. However, during the actual construction process, due to reasons such as soft soil, the casing may drop without being fixed, damaging the pile hole. To solve this problem, a casing clamp is usually selected on-site to clamp the casing. Currently, there are three relatively common types of casing clamps. One is that clamping blocks are provided around the casing clamp, and the casing is clamped and fixed by rotating the clamping blocks; one is that an eccentric rotating block is provided on the fixing ring of the casing clamp, and the casing is clamped by rotating the eccentric rotating block to fix the casing; another is that pin holes are preset on the casing, and corresponding pins are provided on the casing clamp, and the casing is fixed by inserting the pins into the pin holes. Although these three types of casing clamps can all fix the casing, a large amount of manual operation is required when fixing the casing, which is time-consuming and laborious, and the structure is relatively complex, with high production costs. Therefore, there is an urgent need to design a casing clamp with a simple structure, convenient use, and low manual labor intensity. Summary of the Utility Model

[0003] To overcome the problems existing in the background art, the utility model provides a casing clamp, which includes a base, a support assembly, and a clamping assembly for fixing the casing. A through hole for inserting the casing is provided on the base, and the support assembly is fixed on the base, wherein: the clamping assembly includes two clamping main boards, a plurality of casing fixing parts, and a limiting part. The clamping main boards are slidably arranged on the support assembly, and grooves adapted to the outer wall of the casing are provided on one side of the two clamping main boards close to the casing; a plurality of casing fixing parts are respectively fixedly connected with the casing, and the casing fixing parts are located on the upper surface of the clamping main board; limiting parts are provided on one side of the two clamping main boards far from the casing, and the limiting parts clamp the clamping main boards to make the clamping main boards fixed after sliding and clamping the casing.

[0004] Further, the support assembly includes a sliding support and a limiting support. The clamping main board is slidably arranged in the sliding support, and the limiting part is movably arranged on the limiting support.

[0005] Further, the sliding support includes an outer vertical plate, an inner vertical plate, a guide plate, and a sliding part. The outer vertical plate and the inner vertical plate are fixedly arranged on the base at intervals. The guide plate is arranged on the upper part of the outer vertical plate, and the sliding part is fixed on the outer vertical plate and the inner vertical plate. The clamping main board is slidably arranged between the sliding part and the guide plate.

[0006] Further, the sliding part includes a plurality of fixed shafts fixedly connected with the outer vertical plate and the inner vertical plate. Rollers are rotatably arranged on the fixed shafts, and the lower surface of the clamping main board is slidably connected with the rollers.

[0007] Further, the roller is a bearing.

[0008] Further, the limiting bracket includes a limiting rib plate and a limiting groove plate. The limiting rib plate is fixed on the base, the limiting groove plate is fixed on the limiting rib plate, and a plurality of limiting holes adapted to the limiting members are provided on the limiting groove plate.

[0009] Further, the limiting member includes a limiting column, a first locking column and a second locking column. The first locking column and the second locking column are fixedly connected to the side surface of the limiting column. Rotate the limiting column so that the first locking column and the second locking column are respectively in contact with and fixed to the upper surface of the clamping main board and the lower surface of the limiting groove plate.

[0010] Further, a plurality of reinforcing rib plates connected to the base are provided on the outer sides of the sliding bracket and the limiting bracket.

[0011] Further, one end of the limiting hole is arc-shaped and the other end is rectangular, and at least two limiting holes are arranged oppositely along the axial direction.

[0012] Further, the sleeve fixing member is a metal block obtained from the construction site or configured at the time of factory shipment.

[0013] Compared with the prior art, the sleeve fixture of the present utility model has the following beneficial effects:

[0014] In this application, two clamping main boards and limiting members slidably arranged on the bracket assembly are used. After the clamping main boards slide in and abut against the outer wall of the sleeve, the limiting members are used to limit the clamping main boards, realizing the clamping and fixing of the sleeve, which is time-saving and labor-saving, and greatly reduces the labor intensity of the operator; at the same time, a sleeve fixing member is fixedly connected to the sleeve above the clamping main board, and by using the self-gravity of the sleeve, the sleeve fixing member is clamped on the clamping main board, effectively preventing the sleeve from dropping, with a simple structure, firm and stable; moreover, the groove on the clamping main board of this application can be adapted and made according to the size of the sleeve, thereby realizing the clamping and fixing of sleeves with multiple pipe diameters by the sleeve clamp, having good compatibility, greatly saving the manufacturing cost, and being worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model after fixing the sleeve;

[0017] Figure 2Schematic diagram of the overall structure of the present utility model;

[0018] Figure 3 Exploded schematic diagram of the overall structure of the present utility model;

[0019] Figure 4 Exploded structural schematic diagram of the sliding bracket of the present utility model;

[0020] Figure 5 Exploded structural schematic diagram of the limit bracket of the present utility model;

[0021] Figure 6 Top view structural schematic diagram of the limit bracket of the present utility model;

[0022] Figure 7 Structural schematic diagram of the limiting member of the present utility model;

[0023] Wherein: 1 - base, 2 - bracket assembly, 21 - sliding bracket, 210 - outer vertical plate, 211 - inner vertical plate, 212 - guide plate, 213 - sliding member, 2130 - fixed shaft, 2131 - roller, 22 - limit bracket, 220 - limit rib plate, 221 - limit groove plate, 2210 - limit hole, 3 - clamping assembly, 31 - clamping main board, 310 - groove, 32 - sleeve fixing member, 33 - limiting member, 330 - limiting column, 331 - first locking column, 332 - second locking column, 4 - sleeve, 5 - rib plate. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Next, in conjunction with Figures 1 to 7 and specific embodiments, the present utility model will be elaborated in detail.

[0026] The utility model provides a casing clamp, which comprises a base 1, a bracket assembly 2 and a clamping assembly 3 for fixing a casing 4. A through hole 11 for inserting the casing 4 is provided on the base 1, and the bracket assembly 2 is fixed on the base 1. Wherein: the clamping assembly 2 comprises two clamping main boards 31, a plurality of casing fixing pieces 32 and a limiting piece 33. The clamping main boards 31 are slidably arranged on the bracket assembly 2, and grooves 310 adapted to the outer wall of the casing 4 are provided on one side of each of the two clamping main boards 31 close to the casing 4; a plurality of casing fixing pieces 32 are respectively fixedly connected with the casing 4, and the casing fixing pieces 32 are located on the upper surfaces of the clamping main boards 31; limiting pieces 33 are provided on one side of each of the two clamping main boards 31 away from the casing 4, and the limiting pieces 33 clamp the clamping main boards 31, so that the clamping main boards 31 are slid to clamp the casing 4 and then fixed.

[0027] In the present utility model, the base 1 is a rectangular metal plate. The lower surface of the rectangular plate contacts the construction ground. The through hole 11 on the base 1 is a circular hole, and the diameter of the circular hole is larger than the diameter of the sleeve 4 to facilitate the insertion of the sleeve 4. The setting of the base 1 in this application ensures the overall stability of the sleeve clamp. The shape and size of the base 1 are not limited here, as long as the stable placement of the sleeve clamp and the ground can be achieved. The support assembly 2 is a metal frame, which is welded and fixed around the base 1. The clamping main board 31 is a rectangular metal plate with a semi-circular groove 310 opened on one side. The circular groove formed by the grooves 310 of the two clamping main boards 31 is the same as the diameter of the sleeve 4. The two clamping main boards 31 can be detached from both sides of the support assembly 2. The two clamping main boards 31 form a set of clamping main boards of the sleeve clamp. A sleeve clamp can be provided with multiple sets of replaceable clamping main boards. The size of the groove 310 of each set of clamping main boards 31 is adapted to the outer wall diameter of the sleeve 4 to be clamped. Before use, the operator needs to select the clamping main board 31 with a groove 310 of appropriate size according to the outer wall diameter of the sleeve 4. During actual use, the operator first places the base 1 together with the support assembly 2 on the construction ground where rotary drilling is required, pushes the two clamping main boards 31 to both sides respectively, then connects the sleeve 4 to the rotary drilling rig with a sleeve driver, and uses the power head of the rotary drilling rig to rotate and pressurize, so that the sleeve 4 drills downward. Next, after the sleeve drilling is completed, slide the two clamping main boards 31 inward from both sides of the support assembly 2 until they abut against the sleeve 4, and then use the limit members 33 to clamp the two clamping main boards 31 respectively to prevent the clamping main boards 31 from sliding out and affecting the construction. Then, weld multiple sleeve fixing members 32 on the outer side wall of the sleeve 4 above the clamping main board 31. Finally, disconnect the sleeve driver from the sleeve 4. Under the action of its own gravity, the sleeve 4 makes the sleeve fixing member 32 snap onto the clamping main board 31, completing the fixing operation of the sleeve clamp on the sleeve 4. In this application, through the two clamping main boards 31 and the limit members 33 slidably arranged on the support assembly 2, after the clamping main boards 31 slide in and abut against the outer side wall of the sleeve 4, the limit members 33 are used to limit the clamping main boards 31, realizing the clamping and fixing of the sleeve 4, which is time-saving and labor-saving and reduces the labor intensity of the operator. At the same time, a sleeve fixing member 32 is fixedly connected to the sleeve 4 above the clamping main board 31. Using the own gravity of the sleeve 4, the sleeve fixing member 32 is snapped onto the clamping main board 31, effectively preventing the sleeve 4 from falling. The structure is simple, firm and stable. And the clamping main board 31 of this application is a set of replaceable metal plates. The groove 310 on each set of clamping main boards 31 is made according to the outer wall size of the sleeve 4 to be clamped, so as to realize the clamping and fixing of a sleeve clamp on sleeves 4 of multiple specifications and sizes, with good compatibility, greatly saving the manufacturing cost and being worthy of popularization and use.

[0028] Specifically, refer to Figures 1 - 3, in this embodiment, the bracket assembly 2 includes a sliding bracket 21 and a limiting bracket 22. The clamping main board 31 is slidably arranged in the sliding bracket 21, and the limiting member 33 is movably arranged on the limiting bracket 22. In this application, both the sliding bracket 21 and the limiting bracket 22 are two, symmetrically welded and fixed on the base 1, with quick assembly, safety and stability.

[0029] Specifically, refer to Figures 1 - 4 , in this embodiment, the sliding bracket 21 includes an outer vertical plate 210, an inner vertical plate 211, a guiding plate 212 and a sliding member 213. The outer vertical plate 210 and the inner vertical plate 211 are fixedly spaced on the base 1. The guiding plate 212 is arranged on the upper part of the outer vertical plate 219. The sliding member 213 is fixed on the outer vertical plate 210 and the inner vertical plate 211. The clamping main board 31 is slidably arranged between the sliding member 213 and the guiding plate 212.

[0030] Specifically, refer to Figure 4 , in this embodiment, the sliding member 213 includes a plurality of fixed shafts 2130 fixedly connected to the outer vertical plate 210 and the inner vertical plate 211. Rotating rollers 2131 are arranged on the fixed shafts 2130. The lower surface of the clamping main board 31 is slidably connected to the rollers 2131.

[0031] Specifically, refer to Figure 4 , the roller 2130 is a bearing. Preferably, the roller 2130 is a rolling bearing. The operator pushes the clamping main board 31 to slide through a plurality of rolling bearings, which is labor-saving and smooth. In this application, a plurality of fixed shaft holes adapted to the diameter of the fixed shafts 2130 are provided on the outer vertical plate 210. The inner vertical plate 211 is provided with a plurality of clamps adapted to the positions of the fixed shaft holes. Both ends of the clamp are fixed to the upper end surface of the inner vertical plate 211 by bolts. One end of the fixed shaft 2130 is clamped in the fixed shaft hole, and the other end is clamped in the clamp, realizing the rotational connection of the roller 2130 on the fixed shaft 2130. To ensure the stability of the sliding bracket 21, a cross-connecting board connecting the outer vertical plate 210 and the inner vertical plate 211 is also provided between adjacent fixed shafts 2130. Both ends of the cross-connecting board are respectively inserted into the rectangular through holes of the outer vertical plate 210 and the inner vertical plate 211.

[0032] Specifically, refer to Figures 1 - 3 , Figures 5 - 6 , in this embodiment, the limiting bracket 22 includes a limiting rib plate 220 and a limiting groove plate 221. The limiting rib plate 220 is fixed on the base 1. The limiting groove plate 221 is fixed on the limiting rib plate 221. A plurality of limiting holes 2210 adapted to the limiting member 33 are provided on the limiting groove plate 221. In this application, there are two limiting rib plates 220. The limiting rib plate 220 and the limiting groove plate 221 form an inverted U-shaped bracket frame. The limiting member 33 can be inserted into the bracket frame through the limiting holes 2210 and rotate.

[0033] Specifically, refer to Figures 1 - 7, in this embodiment, the limiting member 33 includes a limiting post 330, a first locking post 331 and a second locking post 332. The first locking post 331 and the second locking post 332 are fixedly connected to the side surface of the limiting post 330. Rotate the limiting post 330 so that the first locking post 331 and the second locking post 332 are respectively abutted against the upper surface of the clamping main board 31 and the lower surface of the limiting groove board 221. At the same time, the side surface of the clamping main board 31 and the side surface of the limiting hole 2210 are abutted against the outer side surface of the limiting post 330, so as to realize the limiting and fixing of the clamping main board 31 by the limiting member 33. In this application, the first locking post 331 and the second locking post 332 are vertically arranged with respect to the limiting post 330. The limiting post 330, the first locking post 331 and the second locking post 332 can be welded by reinforcing bars of different lengths in multiple sections, with low raw material cost and convenient processing. At the same time, the distance between the lower end surface of the first locking post 331 and the upper end surface of the second locking post 332 is slightly greater than the distance from the upper surface of the clamping main board 31 to the lower surface of the limiting groove board 221, so as to facilitate the rotation of the limiting post 330 to limit and fix the two.

[0034] Specifically, refer to Figures 1 - 3 , in this embodiment, a plurality of reinforcing rib plates 5 connected to the base 1 are provided on the outer sides of the sliding bracket 21 and the limiting bracket 22. By providing a plurality of reinforcing rib plates 5 in this application, the stability of the connection between the sliding bracket 21, the limiting bracket 22 and the base 1 can be further ensured, and thus it can be ensured that the clamping main board 31 can support the sleeve 4 more stably.

[0035] Specifically, refer to Figures 5 - 6 , in this embodiment, one end of the limiting hole 2210 is arc-shaped and the other end is rectangular, and at least two limiting holes 2210 are arranged oppositely along the axial direction. By setting the limiting hole 2210 in this shape in this application, the limiting member 33 can be horizontally inserted into the limiting hole 2210, and by rotating the limiting post 330, the second locking post 332 can be clamped below the limiting groove board 221, with a simple structure and ingenious design. At the same time, the two oppositely arranged limiting holes 2210 can prevent the limiting member 33 from falling off due to external force for the sleeve clamp.

[0036] Specifically, refer to Figures 1 - 3 , in this embodiment, the sleeve fixing member 32 is a metal block taken from the construction site or configured at the factory. Preferably, the sleeve fixing member 32 is a cuboid metal block. After the clamping main board 31 slides in and is limited and fixed by the limiting member 33, the on-site operator welds and fixes the sleeve fixing member 32 to the sleeve 4. The metal block can be a metal block configured at the factory or locally obtained at each construction site, which is convenient for the operator to use and reduces the production cost of the sleeve clamp, and is worthy of popularization and use. The specification size of the metal block is not limited in this application, as long as it can withstand the vertical downward gravity between the sleeve 4 and the clamping main board 31.

[0037] The working principle of the sleeve clamp is as follows:

[0038] (1) The operator first places the casing clamp on the construction ground where rotary drilling is to be carried out. After the base 1 is in stable contact with the construction ground, the clamping main boards 31 are respectively moved outwards to expose the through holes 11 on the base 1.

[0039] (2) After installing the casing driver and the casing 4 on the rotary drilling rig, the casing 4 is subjected to casing drilling operation through the power head of the rotary drilling rig.

[0040] (3) After the casing drilling is completed, the two clamping main boards 31 are respectively slid inwards from both sides of the sliding bracket 21 until they abut against the outer wall of the casing 4. Then, the limiting members 33 are rotated after passing through the limiting holes 2210 to respectively clamp and fix the two clamping main boards 31.

[0041] (4) A plurality of casing fixing members 32 are welded to the outer wall of the casing 4 above the clamping main board 31.

[0042] (5) The casing driver is disconnected from the casing 4. Under the action of its own gravity, the casing 4 causes the casing fixing members 32 to be clamped on the clamping main board 31.

[0043] Thus, the fixing operation of the casing clamp on the casing 4 is completed. The operator can continue with the next process, which is not the focus of this application and will not be elaborated here.

[0044] If it is necessary to fix casings 4 with other pipe diameters, only the clamping main board 31 with a corresponding diameter groove 310 made according to the outer wall pipe diameter of the casing 4 needs to be replaced. The casing clamp of this application can realize the clamping and fixing of casings 4 with multiple pipe diameters, has good compatibility, and greatly saves the manufacturing cost.

[0045] The above further describes the present utility model with the aid of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present utility model. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present utility model.

Claims

1. A casing clamp, characterized in that, It includes a base, a bracket assembly, and a clamping assembly for fixing a sleeve. A through hole for inserting the sleeve is provided on the base, and the bracket assembly is fixed on the base, where: The clamping assembly includes two clamping main boards, a plurality of sleeve fixing members, and a limiting member. The clamping main boards are slidably arranged on the bracket assembly, and grooves adapted to the outer wall of the sleeve are provided on one side of each of the two clamping main boards close to the sleeve; A plurality of the sleeve fixing members are respectively fixedly connected to the sleeve, and the sleeve fixing members are located on the upper surface of the clamping main board; Limiting members are provided on one side of each of the two clamping main boards away from the sleeve. The limiting members clamp the clamping main boards so that the clamping main boards are fixed in place after sliding and clamping the sleeve.

2. The casing clip according to claim 1, characterized in that, The bracket assembly includes a sliding bracket and a limiting bracket. The clamping main board is slidably arranged in the sliding bracket, and the limiting member is movably arranged on the limiting bracket.

3. The casing clamp according to claim 2, wherein, The sliding bracket includes an outer vertical plate, an inner vertical plate, a guiding plate, and a sliding member. The outer vertical plate and the inner vertical plate are fixedly arranged on the base at intervals. The guiding plate is arranged on the upper part of the outer vertical plate. The sliding member is fixed on the outer vertical plate and the inner vertical plate. The clamping main board is slidably arranged between the sliding member and the guiding plate.

4. The casing clip according to claim 3, characterized in that, The sliding member includes a plurality of fixed shafts fixedly connected to the outer vertical plate and the inner vertical plate. Rollers are rotatably arranged on the fixed shafts, and the lower surface of the clamping main board is slidably connected to the rollers.

5. The casing clamp according to claim 4, characterized in that, The roller is a bearing.

6. The casing clip according to claim 2, characterized in that, The limiting bracket includes a limiting rib plate and a limiting groove plate. The limiting rib plate is fixed on the base, the limiting groove plate is fixed on the limiting rib plate, and a plurality of limiting holes adapted to the limiting member are provided on the limiting groove plate.

7. The casing clip according to claim 6, characterized in that, The limiting member includes a limiting column, a first locking column, and a second locking column. The first locking column and the second locking column are fixedly connected to the side surface of the limiting column. By rotating the limiting column, the first locking column and the second locking column are respectively abutted and fixed against the upper surface of the clamping main board and the lower surface of the limiting groove plate.

8. The casing clip according to claim 2, characterized in that, A plurality of reinforcing rib plates connected to the base are provided on the outer sides of the sliding bracket and the limiting bracket.

9. The casing clip according to claim 7, wherein, One end of the limiting hole is arc-shaped and the other end is rectangular, and at least two of the limiting holes are arranged oppositely along the axial direction.

10. The casing clip according to claim 1, characterized in that, The sleeve fixing member is a metal block taken from the construction site or configured at the factory.

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