Mechanical detection device for deformation of expansion joint of pressure steel pipe

Abstract

The utility model relates to the technical field of expansion joint deformation detection, in particular to a mechanical detection device for deformation of a pressure steel pipe expansion joint, which comprises an expansion joint, and convenient-to-support assemblies are arranged inside and outside the expansion joint. The convenient supporting assembly comprises thickened limiting barrels arranged at the two ends of the telescopic joint, a two-way threaded rod penetrates through the interior of the telescopic joint, a moving block is arranged on the outer wall of the two-way threaded rod, a sleeve is arranged on the outer wall of the moving block, sealing sleeves are arranged on the outer walls of the two ends of the sleeve, and a telescopic cylinder is arranged on the periphery of the outer wall of the sleeve. According to the mechanical detection device for deformation of the expansion joint of the pressure steel pipe, the expansion cylinder is controlled by an external controller to stretch out and draw back, the arc-shaped supporting block at one end is driven to be supported to the inner wall of one end of the dial structure, and the expansion joint is fixed. And the expansion joint is supported through the concave bearing support plate, so that people can conveniently detect the expansion joint.

Description

Technical Field

[0001] The utility model relates to the technical field of deformation detection of expansion joints, in particular to a mechanical detection device for deformation of expansion joints of a pressure steel pipe. Background Art

[0002] During the operation of the pressure steel pipe, deformation and displacement are likely to occur due to factors such as water flow, temperature, and foundation displacement. When the deformation and displacement exceed the standard value, the safety of the pressure steel pipe operation will be greatly affected, and it is easy to cause the expansion joint to tear and burst. Therefore, it is necessary to detect the deformation and displacement of the expansion joint.

[0003] A mechanical detection device for deformation of a pressure steel pipe expansion joint is proposed in the patent with publication number CN220893246U, which includes an expansion joint, a dial structure, a mounting frame, a dial, a slide rail, a slider, a pointer, a first connecting member, a screw hole, a limit block, a fixing clamp structure, a U-shaped block, a clamping bolt, a second connecting member, a connecting rod, and a fixing frame. By setting the dial, the slide rail, the slider and the pointer, when the pressure steel pipe is deformed and displaced, the connecting rod will push the slider to move and change its position, and the scale on the dial pointed by the pointer will change. The displacement of the deformation of the pressure steel pipe can be obtained by the change of the scale. By setting the fixing clamp structure, one end of the connecting rod can be fixed on the flange of the expansion joint. When the pressure steel pipe is deformed and displaced, the two ends of the expansion joint will be displaced, thereby controlling the connecting rod to push the slider. However, the following problems still exist in this patent:

[0004] During use, the above-mentioned mechanical detection device for deformation of the expansion joint of the pressure steel pipe is placed directly on the ground or on a testing table because connecting rods are arranged around the outside of the expansion joint. This will result in an unstable placement and affect the detection result of the expansion joint.

[0005] In view of the above problems, it is necessary to design a mechanical detection device for deformation of pressure steel pipe expansion joints to overcome the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a mechanical detection device for deformation of a pressure steel pipe expansion joint, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A mechanical detection device for deformation of a pressure steel pipe expansion joint, comprising an expansion joint, wherein the expansion joint is provided with a support assembly inside and outside;

[0009] The convenient support component includes a thickened limit cylinder arranged at both ends of the telescopic joint, a two-way threaded rod passes through the interior of the telescopic joint, a moving block is arranged on the outer wall of the two-way threaded rod, a sleeve is arranged on the outer wall of the moving block, sealing sleeves are arranged on the outer walls of both ends of the sleeve, a telescopic cylinder is arranged around the outer wall of the sleeve, a spring is sleeved on the outer wall of the telescopic cylinder, a connecting pad is arranged at one end of the telescopic cylinder, an arc-shaped support block is arranged at one end of the connecting pad, an anti-slip pad is pasted on the outer wall of the arc-shaped support block, concave load-bearing support plates are arranged at both ends of the two-way threaded rod, a bearing seat is arranged on one side of the right end of the concave load-bearing support plate, a threaded sleeve is arranged on the left end of the concave load-bearing support plate, and a hand-held valve is arranged at the left end of the two-way threaded rod.

[0010] As a preferred solution of the utility model, a dial structure is provided on one side of the outer wall of the telescopic joint, connecting rods are provided on the outer walls on both sides of the dial structure, the number of movable blocks provided is two groups, and the number of arc-shaped support blocks provided in one group of movable blocks is four groups.

[0011] As a preferred solution of the utility model, the hand-held valve is fixedly connected to the bidirectional threaded rod, and the threaded sleeve is fixedly connected to the concave load-bearing support plate.

[0012] As a preferred solution of the utility model, the bearing seat is fixedly connected to the concave load-bearing support plate, the bidirectional threaded rod is threadedly connected to the threaded sleeve, and the bidirectional threaded rod and the bearing seat are rotationally connected via a bearing.

[0013] As a preferred solution of the utility model, the moving block is threadedly connected to the bidirectional threaded rod, the moving block is fixedly connected to the sleeve, the sealing sleeve is fixedly connected to the sleeve, and the telescopic cylinder is fixedly connected to the sleeve.

[0014] As a preferred solution of the utility model, the telescopic cylinder is fixedly connected to the connecting pad, the telescopic cylinder is sleeved with the spring, the connecting pad is fixedly connected to the arc-shaped support block, and the anti-slip pad is bonded to the arc-shaped support block. Beneficial Effects

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, a mechanical detection device for deformation of a pressure steel pipe expansion joint is designed, and an external controller is used to control the expansion and contraction of the expansion cylinder, driving the arc-shaped support block at one end to support the inner wall of one end of the dial structure, fixing the expansion joint, and supporting the expansion joint through a concave load-bearing support plate, so that people can easily perform detection operations on the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the concave load-bearing support plate and the bidirectional threaded rod of the utility model;

[0019] Figure 3 It is a schematic diagram of the telescopic joint and the dial structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the arc-shaped support block and the telescopic cylinder of the utility model.

[0021] In the figure: 1. telescopic joint; 2. dial structure; 3. connecting rod; 4. convenient support component; 401. concave load-bearing support plate; 402. thickened limit cylinder; 403. hand-held valve; 404. two-way threaded rod; 405. threaded sleeve; 406. sleeve; 407. sealing sleeve; 408. bearing seat; 409. arc support block; 410. anti-slip pad; 411. moving block; 412. telescopic cylinder; 413. spring; 414. connecting pad. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-4 As shown, a mechanical detection device for deformation of a pressure steel pipe expansion joint comprises an expansion joint 1, and a supporting component 4 is arranged inside and outside the expansion joint 1;

[0024] The support component 4 includes a thickened limit cylinder 402 arranged at both ends of the telescopic joint 1, a bidirectional threaded rod 404 is penetrated inside the telescopic joint 1, a moving block 411 is arranged on the outer wall of the bidirectional threaded rod 404, a sleeve 406 is arranged on the outer wall of the moving block 411, a sealing sleeve 407 is arranged on the outer wall of both ends of the sleeve 406, a telescopic cylinder 412 is arranged around the outer wall of the sleeve 406, a spring 413 is sleeved on the outer wall of the telescopic cylinder 412, a connecting pad 414 is arranged at one end of the telescopic cylinder 412, an arc-shaped support block 409 is arranged at one end of the connecting pad 414, and an anti-slip pad 410 is pasted on the outer wall of the arc-shaped support block 409, a concave load-bearing support plate 401 is arranged at both ends of the bidirectional threaded rod 404, a bearing seat 408 is arranged on one side of the right end of the concave load-bearing support plate 401, a threaded sleeve 405 is arranged on the left end of the concave load-bearing support plate 401, and a hand-held valve 403 is arranged at the left end of the bidirectional threaded rod 404.

[0025] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 3As shown, a dial structure 2 is provided on one side of the outer wall of the telescopic joint 1, connecting rods 3 are provided on the outer walls of both sides of the dial structure 2, two groups of moving blocks 411 are provided, and four groups of arc-shaped support blocks 409 are provided in one group of moving blocks 411. The hand-held valve 403 is fixedly connected to the bidirectional threaded rod 404, the threaded sleeve 405 is fixedly connected to the concave load-bearing support plate 401, the bearing seat 408 is fixedly connected to the concave load-bearing support plate 401, the bidirectional threaded rod 404 is threadedly connected to the threaded sleeve 405, and the bidirectional threaded rod 404 is rotatably connected to the bearing seat 408 through a bearing, the moving block 411 is threadedly connected to the bidirectional threaded rod 404, the moving block 411 is fixedly connected to the sleeve 406, the sealing sleeve 407 is fixedly connected to the sleeve 406, the telescopic cylinder 412 is fixedly connected to the sleeve 406, the telescopic cylinder 412 is fixedly connected to the connecting pad 414, the telescopic cylinder 412 is sleeved with the spring 413, the connecting pad 414 is fixedly connected to the arc support block 409, and the anti-skid pad 410 is bonded to the arc support block 409;

[0026] Among them, the bidirectional threaded rod 404 and the concave load-bearing support plate 401 are connected with the bearing through the bearing seat 408, which is convenient for rotating the hand-held valve 403 to drive the bidirectional threaded rod 404 to rotate, and the operation is simpler. The telescopic section 1 is supported by the arc support block 409, and the bidirectional threaded rod 404 is supported by the concave load-bearing support plate 401, so as to facilitate supporting the telescopic section 1.

[0027] Working process of the utility model: using the mechanical detection device for deformation of the expansion joint of a pressure steel pipe designed in the scheme, when working, by sleeve the bidirectional threaded rod 404 inside the expansion joint 1, install one end to one end of the concave load-bearing support plate 401, so that the concave load-bearing support plate 401 is placed outside the two ends of the expansion joint 1, and the four groups of expansion cylinders 412 on the outer wall of the sleeve 406 are controlled by an external controller to extend, and the arc-shaped support block 409 at one end is supported to the inner wall of the expansion joint 1, and the anti-slip pad 410 is closely attached to the inner wall of the expansion joint 1 to increase its support stability, and the expansion joint 1 is supported by the concave load-bearing support plate 401 to keep it away from the ground, so that the expansion joint 1 can be detected by operating the dial structure 2 and the connecting rod 3, and the bidirectional threaded rod 404 is driven to rotate by manually rotating the hand-held valve 403, so that the two groups of moving blocks 411 can be moved toward each other, which is easier to operate.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical detection device for deformation of a penstock expansion joint, comprising an expansion joint (1), characterized in that: The inside and outside of the telescopic joint (1) are provided with a supporting component (4); The supporting assembly (4) comprises thickened limiting cylinders (402) arranged at both ends of the telescopic joint (1); a bidirectional threaded rod (404) penetrates the interior of the telescopic joint (1); a moving block (411) is arranged on the outer wall of the bidirectional threaded rod (404); a sleeve (406) is arranged on the outer wall of the moving block (411); sealing sleeves (407) are arranged on the outer walls of both ends of the sleeve (406); a telescopic cylinder (412) is arranged around the outer wall of the sleeve (406); a spring (413) is sleeved on the outer wall of the telescopic cylinder (412); A connecting pad (414) is provided at one end of the cylinder (412), an arc-shaped support block (409) is provided at one end of the connecting pad (414), an anti-slip pad (410) is adhered to the outer wall of the arc-shaped support block (409), concave load-bearing support plates (401) are provided at both ends of the bidirectional threaded rod (404), a bearing seat (408) is provided on one side of the right end of the concave load-bearing support plate (401), a threaded sleeve (405) is provided at the left end of the concave load-bearing support plate (401), and a hand-held valve (403) is provided at the left end of the bidirectional threaded rod (404).

2. A mechanical detection device for deformation of a pressure steel pipe expansion joint according to claim 1, characterized in that: A dial structure (2) is provided on one side of the outer wall of the telescopic joint (1), connecting rods (3) are provided on the outer walls on both sides of the dial structure (2), the number of the movable blocks (411) provided is two groups, and the number of arc-shaped support blocks (409) provided in one group of the movable blocks (411) is four groups.

3. A mechanical detection device for deformation of a pressure steel pipe expansion joint according to claim 1, characterized in that: The hand-held valve (403) is fixedly connected to the bidirectional threaded rod (404), and the threaded sleeve (405) is fixedly connected to the concave load-bearing support plate (401).

4. A mechanical detection device for deformation of a pressure steel pipe expansion joint according to claim 1, characterized in that: The bearing seat (408) is fixedly connected to the concave load-bearing support plate (401), the bidirectional threaded rod (404) is threadedly connected to the threaded sleeve (405), and the bidirectional threaded rod (404) is rotationally connected to the bearing seat (408) via a bearing.

5. The mechanical detection device for deformation of a pressure steel pipe expansion joint according to claim 1 is characterized in that: The moving block (411) is threadedly connected to the bidirectional threaded rod (404), the moving block (411) is fixedly connected to the sleeve (406), the sealing sleeve (407) is fixedly connected to the sleeve (406), and the telescopic cylinder (412) is fixedly connected to the sleeve (406).

6. A mechanical detection device for deformation of a pressure steel pipe expansion joint according to claim 1, characterized in that: The telescopic cylinder (412) and the connecting pad (414) are fixedly connected, the telescopic cylinder (412) and the spring (413) are sleeved, the connecting pad (414) and the arc-shaped support block (409) are fixedly connected, and the anti-slip pad (410) and the arc-shaped support block (409) are bonded.

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