Rotary corrugated pipe fixing mechanism

Abstract

The utility model discloses a rotary corrugated pipe fixing mechanism which comprises a connecting piece and a first shaft rod, the first shaft rod is rotatably installed on the connecting piece, one end of the first shaft rod is rotatably provided with an external thread sleeve, one end of the external thread sleeve is fixedly connected with a first gear, the external thread sleeve is in threaded connection with a movable block, and the movable block is in threaded connection with the first gear. A stabilizing block is fixedly installed on the first shaft rod and arranged between the movable block and the connecting piece, and a plurality of fastening devices are arranged on the stabilizing block and the movable block. The fastening device comprises a first rod piece, a second rod piece and a supporting plate, one end of the first rod piece is movably connected with the supporting plate, the other end of the first rod piece is movably connected with the stabilizing block, one end of the second rod piece is movably connected with the supporting plate, the other end of the second rod piece is movably connected with the movable block, and the midpoint of the first rod piece is hinged to the midpoint of the second rod piece. The fixing device can be driven by the motor to rotate so as to drive the pipeline to rotate, the structure is compact, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of bellows clamping, in particular to a rotary bellows fixing mechanism. Background Art

[0002] A bellows is a cylindrical shell with multiple transverse corrugations. It has a certain elasticity and can produce displacement under the action of pressure, axial force, transverse force or bending moment. It is mainly used to compensate for pipeline thermal deformation, shock absorption, and absorb pipeline settlement deformation. It is widely used in petrochemical, instrumentation, aerospace, chemical, electric power, water conservancy, metallurgy and other industries.

[0003] During the processing of corrugated pipes, the steel pipes need to be cut and painted. The existing clamping mechanism is complex in design and cumbersome to operate, and most of them are external clamping. The clamping parts of the external clamping mechanism themselves are easy to block the plastic spraying, making the painting inconvenient or uneven, affecting the quality and efficiency of the painting. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary bellows fixing mechanism to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] It comprises a connecting member and a first shaft rod, the first shaft rod is rotatably mounted on the connecting member, an externally threaded sleeve is rotatably mounted on one end of the first shaft rod, one end of the externally threaded sleeve is fixedly connected to a first gear, a movable block is screwed on the externally threaded sleeve, a stabilizing block is fixedly mounted on the first shaft rod, the stabilizing block is arranged between the movable block and the connecting member, and a plurality of fastening devices are arranged on the stabilizing block and the movable block;

[0006] The fastening device includes a first rod, a second rod and a support plate, one end of the first rod is movably connected to the support plate, and the other end is movably connected to the stabilizing block, one end of the second rod is movably connected to the support plate, and the other end is movably connected to the movable block, and the midpoint of the first rod is hinged to the midpoint of the second rod.

[0007] Furthermore, the number of the fastening devices is not less than two.

[0008] Furthermore, it also includes a second shaft rod, and both the movable block and the stable block are provided with a clamping block, and the second shaft rod is rotatably installed on the clamping block.

[0009] Furthermore, a second gear is fixedly mounted on one end of the first shaft rod close to the first gear, and a handle is fixedly mounted on the other end of the first shaft rod, and the second gear is meshed with the first gear.

[0010] Furthermore, a plurality of slots are formed on a surface of the support plate away from the first shaft rod.

[0011] Furthermore, a positioning plate is provided at one end of the support plate close to the connecting piece, and the positioning plate extends toward a side away from the first shaft rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This solution uses a retractable and movable fixing device to expand inside the pipeline, thereby fixing the pipeline, avoiding the blocking of the fixing device when the outer surface of the pipeline is plastic-coated and spray-painted, which affects the spray-painting effect.

[0014] 2. The fixing device can be rotated under the drive of the motor, thereby driving the pipe fixed by the fixing device to rotate, making it convenient to spray paint and plasticize the pipe; this solution has a compact design structure, is easy to use, and can be operated by one person. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

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

[0017] Figure 2 This is a schematic diagram of the implementation of the utility model fixed bellows;

[0018] Figure 3 for Figure 2 Right view structure diagram.

[0019] In the figure: 101, connecting member; 102, first shaft; 1021, movable block; 1022, stabilizing block; 103, external threaded sleeve; 104, first gear; 105, handle; 106, second shaft; 107, second gear; 108, motor; 109, clamping block; 201, first rod; 202, second rod; 203, support plate; 204, clamping groove; 205, positioning plate; 3, support seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 As shown, in an embodiment of the utility model, a rotary bellows fixing mechanism includes a connecting member 101 and a first shaft rod 102, wherein the first shaft rod 102 is rotatably mounted on the connecting member 101, one end of the first shaft rod 102 is associated with a motor 108, and the other end is rotatably mounted with an externally threaded sleeve 103, one end of the externally threaded sleeve 103 is fixedly connected with a first gear 104, a movable block 1021 is screwed on the externally threaded sleeve 103, a stabilizing block 1022 is fixedly mounted on the first shaft rod 102, the stabilizing block 1022 is disposed between the movable block 1021 and the connecting member 101, and fastening devices are provided on the stabilizing block 1022 and the movable block 1021, and the inner wall of the pipe is supported by the fastening device, thereby fixing the pipe, and the number of the fastening devices should be no less than two, so as to support the pipe for fastening.

[0023] In one embodiment, see Figure 1 As shown, the fastening device includes a first rod 201, a second rod 202 and a support plate 203. One end of the first rod 201 is movably connected to the support plate 203, and the other end is movably connected to the stabilizing block 1022. One end of the second rod 202 is movably connected to the support plate 203, and the other end is movably connected to the movable block 1021. The midpoint of the first rod 201 is hinged to the midpoint of the second rod 202, so that the first rod 201 and the second rod 202 cross to form an X shape. By rotating the first gear 104, the connected externally threaded sleeve 103 can be driven to rotate, and the rotation of the externally threaded sleeve 103 can drive the threaded movable block 1021 to move on the externally threaded sleeve 103, so that the movable block 1021 is close to or away from the stable block 1022, and the first rod 201 and the second rod 202 are controlled by the change of the distance between the movable block 1021 and the stable block 1022, so as to drive the first rod 201 and the second rod 202 hinged to each other in an X shape to pull the support plate 203 closer to or push it away from the first shaft rod 102. When it is necessary to fix the pipeline, all the support plates 203 are pushed in the direction away from the first shaft rod 102, so that the support plates 203 touch the inner wall of the pipeline to be fixed, thereby supporting the pipeline for fixing.

[0024] A plurality of slots 204 are formed on one side of the support plate 203 away from the first shaft 102. When the pipe to be fixed is an inner bellows pipe, the corrugated structure on the bellows pipe will be inserted into the slots 204 to avoid damaging the pipe when supporting.

[0025] In one embodiment, see Figure 2 As shown, a positioning plate 205 is provided at one end of the support plate 203 close to the connecting member 101. The positioning plate 205 extends toward a side away from the first shaft 102. When the pipeline is sleeved on the fastening device, the positioning plate 205 can limit the pipeline.

[0026] In one embodiment, see Figure 1 , Figure 3 As shown, it also includes a second shaft rod 106, and a clamping block 109 is provided on the movable block 1021 and the stable block 1022. The second shaft rod 106 is rotatably installed on the clamping block 109. One end of the second shaft rod 106 close to the first gear 104 is fixedly connected to the second gear 107, and the other end is fixedly connected to the handle 105. The second gear 107 is meshed with the first gear 104. The second shaft rod 106 is rotated by rotating the handle 105, thereby driving the second gear 107 to rotate, and the first gear 104 is driven to rotate by the rotation of the second gear 107.

[0027] In one embodiment, see Figure 1 As shown, the connecting member 101 is connected to a supporting seat 3, and the supporting seat 3 can be placed on any supporting surface to fix the device.

[0028] When in use, first put the pipe on the fixing device, turn the handle 105, and the first gear 104 starts to rotate through the linkage of the gears. The rotation of the first gear 104 makes all the support plates 203 open and fit tightly against the inner wall of the pipe, thereby supporting and fixing the pipe. Start the motor 108, and the motor 108 drives the first shaft rod 102 to rotate. The first shaft rod 102 drives the entire fixing device to rotate through the fixedly connected stabilizing block 1022. The rotation of the fixing device will drive the pipe to rotate so as to be sprayed with paint and plastic.

[0029] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A rotary bellows fixing mechanism, characterized in that: It comprises a connecting member and a first shaft rod, the first shaft rod is rotatably mounted on the connecting member, an externally threaded sleeve is rotatably mounted on one end of the first shaft rod, one end of the externally threaded sleeve is fixedly connected to a first gear, a movable block is screwed on the externally threaded sleeve, a stabilizing block is fixedly mounted on the first shaft rod, the stabilizing block is arranged between the movable block and the connecting member, and a plurality of fastening devices are arranged on the stabilizing block and the movable block; The fastening device includes a first rod, a second rod and a support plate, one end of the first rod is movably connected to the support plate, and the other end is movably connected to the stabilizing block, one end of the second rod is movably connected to the support plate, and the other end is movably connected to the movable block, and the midpoint of the first rod is hinged to the midpoint of the second rod.

2. A rotary bellows fixing mechanism according to claim 1, characterized in that: The number of the fastening devices is not less than two.

3. A rotary bellows fixing mechanism according to claim 1, characterized in that: It also includes a second shaft rod. Both the movable block and the stable block are provided with a clamping block, and the second shaft rod is rotatably installed on the clamping block.

4. A rotary bellows fixing mechanism according to claim 3, characterized in that: The second gear is fixedly mounted on one end of the first shaft rod close to the first gear, and the handle is fixedly mounted on the other end of the first shaft rod, and the second gear is meshed with the first gear.

5. The rotary bellows fixing mechanism according to claim 1, characterized in that: A plurality of slots are formed on a surface of the support plate away from the first shaft rod.

6. A rotary bellows fixing mechanism according to claim 1, characterized in that: A positioning plate is provided at one end of the support plate close to the connecting piece, and the positioning plate extends to a side away from the first shaft rod.

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