CN211437607U

CN211437607U - Pipe bender for operation in limited space

Info

Publication number: CN211437607U
Application number: CN201922272382.4U
Authority: CN
Inventors: 李德义; 王晓忠; 郑辉; 张泽忠
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-08
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to the technical field of hydroelectric installation, and provides a pipe bender for operation in a limited space, which comprises a first operation pipe, a second operation pipe and an operation handle; the axial direction of the first operation pipe is parallel to the axial direction of the second operation pipe; the operation handle comprises a first fixed rod, an extension rod and a second fixed rod which are fixedly connected in sequence; the length direction of the first fixing rod is parallel to the axial direction of the first operation pipe, and the first fixing rod is fixedly connected with the outer wall of the first operation pipe; the length direction of the second fixing rod is parallel to the axial direction of the second operation pipe, and the second fixing rod is fixedly connected with the outer wall of the second operation pipe. When the pipe is bent, only one of the operation pipes is sleeved outside the pipeline to be processed, the other operation pipe is positioned outside the operation space through the operation handle, and then acting force is applied to the operation pipe positioned outside the operation space, so that the pipeline can be manually bent in a required direction.

Description

Pipe bender for operation in limited space

Technical Field

The utility model relates to a water and electricity installation technical field, in particular to a hickey for operation under restricted space.

Background

In the hydropower installation project, the pipeline is often required to be bent in the process of embedding the pipeline, and the pipeline is bent by the pipe bender which is invented at present. However, the existing pipe bender in the market can solve the bending operation of water and electricity pipelines in a large space, and when the pipe bender meets a small node and a small-range operation space, the existing pipe bender can not realize the pipe bending operation.

For example, in a structural beam with dense steel bars, the joint between the upper part of the secondary structural masonry and the main structural beam, the construction joint between the parapet and the roof structural slab, etc., due to the structural limitation, the space for pipe bending operation is small, and the existing pipe bender cannot be placed in the limited space, which causes that the existing pipe bender cannot bend the pipeline installed in the limited space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hickey for operation under the restricted space is provided solves the problem that current hickey can't bend the operation to the pipeline under little space condition.

The utility model provides a technical scheme that its technical problem adopted is: the pipe bender for operation in a limited space comprises a first operation pipe, a second operation pipe and an operation handle; the axial direction of the first operation pipe is parallel to the axial direction of the second operation pipe;

the operation handle comprises a first fixed rod, an extension rod and a second fixed rod which are fixedly connected in sequence; the length direction of the first fixing rod is parallel to the axial direction of the first operation pipe, and the first fixing rod is fixedly connected with the outer wall of the first operation pipe; the length direction of the second fixing rod is parallel to the axial direction of the second operation pipe, and the second fixing rod is fixedly connected with the outer wall of the second operation pipe.

Further, the inner diameter of the first working pipe is D1, and the inner diameter of the second working pipe is D2; wherein D1 is more than or equal to D2.

Further, the length of the first operation pipe is L1, and the length of the first fixing rod is L1'; wherein L1' > L1; the end part of the first fixing rod, which is not connected with the extension rod, is fixed on the outer wall of the first operation pipe.

Furthermore, the length of the second operation pipe is L2 'and the length of the second fixing rod is L2'; wherein L2' > L2; and the end part of the second fixed rod, which is not connected with the extension rod, is fixed on the outer wall of the second operation pipe.

Furthermore, an included angle between the first fixing rod and the extension rod is alpha; wherein alpha is more than or equal to 60 degrees and less than or equal to 150 degrees.

Further, α is 90 °.

Furthermore, an included angle between the second fixing rod and the extension rod is beta; wherein beta is more than or equal to 60 degrees and less than or equal to 150 degrees.

Further, β is 90 °.

The utility model has the advantages that: the utility model discloses a hickey for operation under restricted space, simple structure, the preparation is convenient. When the pipe is bent, only one of the operation pipes is sleeved outside the pipeline to be processed, the other operation pipe is positioned outside the operation space through the operation handle, and then acting force is applied to the operation pipe positioned outside the operation space, so that the pipeline can be manually bent in a required direction. The utility model discloses a hickey, the construction speed is fast, and the flexibility is good, is particularly useful for the operation of bending under the little space operation condition.

Drawings

Fig. 1 is a schematic structural diagram of a pipe bender for operation in a confined space according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pipe bender for operation in a limited space according to an embodiment of the present invention when bending a pipeline;

fig. 3 is another schematic structural view of a pipe bender for operation in confined spaces according to an embodiment of the present invention;

fig. 4 is a top view of fig. 3.

The reference numbers in the figures are: 1-a first operation pipe, 2-a second operation pipe, 3-an operation handle, 31-a first fixed rod, 32-an extension rod and 33-a second fixed rod.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The pipe bender for operation in a limited space comprises a first operation pipe 1, a second operation pipe 2 and an operation handle 3; the axial direction of the first service pipe 1 is parallel to the axial direction of the second service pipe 2; the operation handle 3 comprises a first fixing rod 31, an extension rod 32 and a second fixing rod 33 which are fixedly connected in sequence; the length direction of the first fixing rod 31 is parallel to the axial direction of the first operation pipe 1, and the first fixing rod 31 is fixedly connected with the outer wall of the first operation pipe 1; the length direction of the second fixing rod 33 is parallel to the axial direction of the second operation pipe 2, and the second fixing rod 33 is fixedly connected with the outer wall of the second operation pipe 2.

As shown in fig. 1, 3 and 4, the first operation pipe 1 and the second operation pipe 2 are made of steel pipes, and are used for being sleeved on a pipeline to be processed, and acting force is applied to the operation pipes through the operation handles 3, so that the pipeline to be processed is bent and formed. The operation handle 3 comprises a first fixing rod 31, an extension rod 32 and a second fixing rod 33 which are fixedly connected in sequence; the first fixing rod 31, the extension rod 32 and the second fixing rod 33 may be fixed by welding or may be an integral member.

In order to ensure the strength and rigidity and minimize the volume of the pipe bender, it is preferable that the operation handle 3 is made of steel bars, for example, the diameter of the steel bars is 6mm, and the steel bars may have other sizes, which is not limited herein. The first fixing rod 31 is welded to the outer wall of the first working pipe 1, and the second fixing rod 33 is welded to the outer wall of the second working pipe 2. The operation handle 3 has the functions of: firstly, the connection of a first working pipe 1 and a second working pipe 2 is realized; secondly, the extension function is achieved, the force application position is extended into an external large space, and the convenience of operation is improved; and thirdly, the force arm is increased, and the acting force during bending is reduced.

When the pipe bender works, the first operation pipe 1 is sleeved on a pipeline to be machined, then the second operation pipe 2 is held, manual bending machining is carried out on the pipeline in the needed direction until the pipe bending requirement is met, and then the pipe bender is taken down from the pipeline.

The pipe bender for operation in the limited space of the embodiment of the utility model has simple structure, convenient manufacture and easy realization of the conventional materials; the pipe bender has the advantages of high construction speed and good flexibility, is particularly suitable for bending operation under the small-space operation condition, and solves the problem that the existing pipe bender cannot bend a pipeline under the small-space condition.

In order to increase the range of application of the pipe bender, it is preferable that the inner diameter of the first service pipe 1 is D1, and the inner diameter of the second service pipe 2 is D2; wherein D1 is more than or equal to D2. The first operation pipe 1 and the second operation pipe 2 with different inner diameters are arranged, so that the operation range of the pipe bender can be enlarged, and proper operation pipes are selected to perform bending operation according to the conditions of the diameter of a pipeline to be processed, the radius of a bent pipe and the like. Preferably, D2 is greater than or equal to 30 mm.

In order to further increase the application range of the pipe bender, it is preferable that, as shown in fig. 1, the length of the first service pipe 1 is L1, and the length of the first fixing rod 31 is L1'; wherein L1' > L1; the end of the first fixing rod 31 not connected to the extension rod 32 is fixed to the outer wall of the first working pipe 1. Preferably, L1 is 30 mm. The pipeline bending under the special structure can be realized by the structure, as shown in fig. 2, the pipeline to be processed needs to be bent downwards, the first operation pipe 1 is sleeved on the pipeline during operation, and the length of the first fixing rod 31 is larger than that of the first operation pipe 1, so that the first operation pipe 1 can be easily moved to a proper working position, then the second operation pipe 2 is held by a hand, and the pipeline is manually bent downwards until the requirement of bending the pipeline is met.

Preferably, as shown in fig. 1, the second working pipe 2 has a length of L2, and the second fixing rod 33 has a length of L2'; wherein L2' > L2; the end of the second fixing rod 33 not connected to the extension rod 32 is fixed to the outer wall of the second working pipe 2. Preferably, L2 is 30 mm. The included angle between the first fixing rod 31 and the extension rod 32 is alpha; wherein alpha is more than or equal to 60 degrees and less than or equal to 150 degrees. The included angle between the second fixing rod 33 and the extension rod 32 is beta; wherein beta is more than or equal to 60 degrees and less than or equal to 150 degrees. Preferably, as shown in fig. 3, α is 90 ° and β is 90 °.

Claims

1. The pipe bender for operation in a limited space is characterized by comprising a first operation pipe (1), a second operation pipe (2) and an operation handle (3); the axial direction of the first operation pipe (1) is parallel to the axial direction of the second operation pipe (2);

the operation handle (3) comprises a first fixing rod (31), an extension rod (32) and a second fixing rod (33) which are fixedly connected in sequence; the length direction of the first fixing rod (31) is parallel to the axial direction of the first operation pipe (1), and the first fixing rod (31) is fixedly connected with the outer wall of the first operation pipe (1); the length direction of the second fixing rod (33) is parallel to the axial direction of the second operation pipe (2), and the second fixing rod (33) is fixedly connected with the outer wall of the second operation pipe (2).

2. A pipe bender for operations under confined spaces as claimed in claim 1, characterized in that the inner diameter of said first service pipe (1) is D1, the inner diameter of said second service pipe (2) is D2; wherein D1 is more than or equal to D2.

3. Pipe bender for operations under confined spaces as claimed in claim 1, characterized in that the length of the first service pipe (1) is L1, the length of the first fixed rod (31) is L1'; wherein L1' > L1; the end part of the first fixing rod (31) which is not connected with the extension rod (32) is fixed on the outer wall of the first operation pipe (1).

4. Pipe bender for operations under confined spaces as claimed in claim 1, 2 or 3, characterized in that the length of the second service pipe (2) is L2, the length of the second fixed rod (33) is L2'; wherein L2' > L2; the end part of the second fixing rod (33) which is not connected with the extension rod (32) is fixed on the outer wall of the second operation pipe (2).

5. Pipe bender for operations under confined spaces as claimed in claim 1, 2 or 3, characterized in that the angle between the first fixed rod (31) and the extension rod (32) is α; wherein alpha is more than or equal to 60 degrees and less than or equal to 150 degrees.

6. A tube bender for operations in confined spaces according to claim 5, wherein α -90 °.

7. Pipe bender for operations under confined spaces as claimed in claim 1, 2 or 3, characterized in that the angle between the second fixed rod (33) and the extension rod (32) is β; wherein beta is more than or equal to 60 degrees and less than or equal to 150 degrees.

8. A tube bender for operations in confined spaces according to claim 7, wherein β -90 °.