CN219649756U

CN219649756U - Wrench for disassembling sleeve

Info

Publication number: CN219649756U
Application number: CN202321024471.7U
Authority: CN
Inventors: 朱晓亮; 何思元; 魏豪; 方升; 赵俊臣; 陈艳芳; 肖琦; 刘计东
Original assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge East China Engineering Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-08
Anticipated expiration: 2033-04-28

Abstract

The utility model relates to a sleeve disassembly wrench, which comprises a chain type buckle and a handle, wherein the chain type buckle comprises at least 3 arc-shaped buckle sections, at least one tooth block is arranged on the inner arc side of each buckle section, the buckle sections are sequentially connected in a rotating way through a pin shaft from head to tail, the rear end of a first buckle section is rotationally connected with the handle through the pin shaft, and the joint of the handle and the first buckle section is at a certain distance from the front end of the handle; the clasp segments of the chain clasp may be wound in a ring shape, with the inner arcuate side of each clasp segment being located inside the ring. The chain type buckle is adopted to hold the sleeves tightly, the handle can rotate the sleeves easily by utilizing the lever principle, and the threaded connection between the sleeves is released; the chain buckle length is adjustable, and is applicable to the sleeve pipe dismantlement of different diameters.

Description

Wrench for disassembling sleeve

Technical Field

The utility model belongs to the technical field of bridge construction, and relates to a sleeve disassembly wrench which is used for disassembling two screwed large-diameter sleeves.

Background

When bridge construction, after pile hole drilling construction of pile foundation and anchorage foundation is completed, in order to ensure stability of foundation, sometimes stratum below foundation needs to be reinforced, and the reinforced stratum needs to be sampled before reinforcement so as to determine an optimal reinforcing scheme. In a common sampling mode, a drilling machine is used for drilling and coring from a pile hole to a reinforcing layer, and in order to prevent a drill rod of the drilling machine from disturbing a hole wall to collapse the hole, a sleeve with the outer diameter equal to or slightly smaller than the diameter of the pile hole is firstly put down in the pile hole to protect the hole wall.

The sleeve is of a segment structure, the length of each segment is 3.5m when the sleeve leaves a factory, one end of each segment of sleeve is provided with external threads, the other end of each segment of sleeve is provided with internal threads, and the two segments can be connected in a threaded mode. The casing pipe is rotated and lowered in the pile hole by adopting a rotary jet drilling host machine, and is lengthened section by section according to the hole depth. After the coring is finished, the sleeve is pulled out, and the connection between the sections is released section by section, so that the sleeve is convenient to transport and store. Because the outer wall of the sleeve is smooth and has no force points, the screw threads between the sleeve sections are hard to be rotated and untied manually.

Disclosure of Invention

The utility model aims to solve the problems and provide a sleeve disassembling wrench which is convenient for disassembling a sleeve.

The technical scheme of the utility model is as follows:

the utility model provides a spanner is dismantled to sleeve pipe which characterized in that: the chain type buckle comprises at least 3 arc-shaped buckle sections, at least one tooth block is arranged on the inner arc side of each buckle section, the buckle sections are sequentially connected in a rotating mode through a pin shaft, the rear end of a first buckle section is rotationally connected with the handle through the pin shaft, and a certain distance is reserved between the joint of the handle and the first buckle section and the front end of the handle; the clasp segments of the chain clasp may be wound into a ring with the inner arcuate side of each clasp segment being located inside the ring.

The utility model adopts the chain type buckle to hold the sleeve tightly, the handle can rotate the sleeve easily by utilizing the lever principle, and the threaded connection between the sleeves is released. The length of chain buckle is adjustable, applicable in the sleeve pipe dismantlement of different diameters. The utility model can be used for disassembling the sleeve and also can be used for disassembling the tubular objects with similar structures.

Drawings

FIG. 1 is a schematic diagram of an embodiment and use of the present utility model;

FIG. 2 is a side view of an expanded state of an embodiment of the present utility model;

FIG. 3 is a plan view of an expanded state of an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the tooth block and its mounting on the snap-fit segment;

FIG. 5 is a schematic plan view of a first clasp section of a chain clasp;

FIG. 6 is a schematic plan view of the chain card minus the remaining segments except for the first and last segments;

fig. 7 is a schematic plan view of the last segment of the chain clasp.

Detailed Description

As shown in fig. 1, 2 and 3, the utility model comprises a chain buckle and a handle 1, wherein the chain buckle comprises at least 3 arc buckle sections 2, at least one tooth block 3 is arranged on the inner arc side of each buckle section 2, the buckle sections 2 are sequentially connected in a rotating way through a pin shaft 4 from head to tail, the rear end of a first buckle section 2 is rotationally connected with the handle 1 through the pin shaft, and the joint of the handle 1 and the first buckle section is at a certain distance from the front end of the handle; the individual catch segments 2 of the chain catch can be wound into a ring shape, with the inner arc side of each catch segment being located on the inside of the ring.

As shown in fig. 4, one end of the tooth block 3 is connected with the fastening section 2 through a bolt 5, the other end of the tooth block 3 is provided with a latch 31, and the latch 31 protrudes on the inner arc side of the fastening section 2.

As shown in fig. 5, 6 and 7, two ends of a first buckle section 2 of the chain buckle are respectively provided with a U-shaped socket 21, the front ends of the other buckle sections 2 are provided with U-shaped sockets 21, the rear ends are provided with a plug 22, and a limiting block 6 is welded between two sides of the U-shaped socket 21 of the last buckle section 2;

as shown in fig. 1, 2 and 3, a plug 22 at the rear end of one fastening section 2 is inserted into a U-shaped socket 21 at the front end of the other fastening section and is connected with the plug by a pin shaft 4 penetrating between two sides of the U-shaped socket, and a handle 1 near the front end is inserted into the U-shaped socket at the rear end of the first fastening section and is connected with the handle by a pin shaft penetrating between two sides of the U-shaped socket.

In the implementation of the utility model, the number of the fastening segments 2 of the chain fastener can be set according to the diameter of the sleeve to be disassembled, so that the length of the chain fastener can encircle and hug the sleeve.

The application mode of the utility model is as follows:

as shown in fig. 1, when two screwed sleeves need to be disassembled, a chain type buckle is wound on one sleeve 7, the handle is rotated, the front end of the handle 1 is pressed on a limiting block 6 at the front end of the last buckle section, and tooth blocks 3 on each buckle section are respectively clamped on the outer wall of the sleeve 7, so that the sleeve 7 can be clamped; when the other sleeve is in a fixed state, the handle is pulled by force, so that the clamped sleeve can be rotated to separate the two sleeves. When the socket is specifically used, two wrenches can be matched, one wrench is used for fixing the socket, and the other wrench is used for rotating the socket.

Claims

1. The utility model provides a spanner is dismantled to sleeve pipe which characterized in that: the chain type buckle comprises at least 3 arc-shaped buckle sections, at least one tooth block is arranged on the inner arc side of each buckle section, the buckle sections are sequentially connected in a rotating mode through a pin shaft, the rear end of a first buckle section is rotationally connected with the handle through the pin shaft, and a certain distance is reserved between the joint of the handle and the first buckle section and the front end of the handle; the clasp segments of the chain clasp may be wound into a ring with the inner arcuate side of each clasp segment being located inside the ring.

2. The socket dismounting wrench of claim 1, wherein: and one end of the tooth block is connected with the buckling section through a bolt, the other end of the tooth block is provided with a latch, and the latch protrudes out of the inner arc side of the buckling section.

3. The socket dismounting wrench of claim 1, wherein: the two ends of the first buckle section of the chain buckle are respectively provided with a U-shaped socket, the front ends of the other buckle sections are provided with U-shaped sockets, the rear end of the first buckle section is provided with a plug, and a limiting block is welded between the two sides of the U-shaped socket at the front end of the last buckle section; the plug at the rear end of one buckle section is inserted into the socket at the front end of the other buckle section and is connected with each other by penetrating the pin shaft, and the handle is inserted into the U-shaped bayonet at the rear end of the first buckle section and is connected by penetrating the pin shaft.