Expansion piece protection device

Abstract

The utility model relates to the technical field of pipeline connection, in particular to an expansion piece protection device which comprises a protection ring body, the protection ring body comprises four arc-shaped blocks, the arc-shaped blocks are detachably hinged through fastening bolts, semi-arc grooves are formed in the two ends of each arc-shaped block, and every two semi-arc grooves form a cylindrical groove. Sealing gaskets are arranged at the bottoms of the arc-shaped blocks, limiting strips are integrally arranged at the tops of inner rings of the arc-shaped blocks, vertical sealing belts are arranged on the side walls, below the limiting strips, of the inner rings of the arc-shaped blocks, horizontal fastening assemblies are arranged on the arc-shaped blocks at the two ends, and vertical fastening assemblies are arranged on the side walls of outer rings of the arc-shaped blocks; according to the expansion piece protection device, when the expansion piece leaks water, the protection ring body can be arranged on the gland of the expansion piece in a sleeving mode, the horizontal fastening assembly and the vertical fastening assembly are fastened, the expansion piece recovers to work normally, the maintenance difficulty of the expansion piece is reduced, the expansion piece is not disassembled, the probability that maintenance personnel make contact with dangerous parts or toxic substances is further reduced, and the service life of the expansion piece is prolonged. And the life safety of workers is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a retractor protection device. Background Art

[0002] Pipe expansion joints are mainly used to transport various media similar to sewage, such as seawater, fresh water, hot and cold water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, finished oil, air, gas, steam with a temperature not higher than 250 degrees, and granular powder. According to the connection between the flanges on both sides and the pipeline or pipeline equipment, it can effectively play a flexible element to compensate for axial deformation. SSQ cast iron expansion joints are also called expansion joints and compensation joints. This product provides great convenience for the installation and replacement of drainage pipes, water towers, water pumps, and water meter valves. It plays a good role in regulating the expansion and contraction of long-distance pipelines due to temperature differences. The inner pipes of SSQ cast iron expansion joints are divided into cast iron (HF), galvanized (DX) and steel (SF). The working pressures are divided into PN6, PN10, and PN16. Before installation, the gland bolts must be loosened, the product must be pulled to the installation length, and then tightened using the diagonal method.

[0003] When the expansion joint leaks, most of the reasons are that the sealing ring is not evenly compressed. Usually, the expansion joint needs to be disassembled and the sealing ring needs to be reinstalled. However, when disassembling the expansion joint, since the expansion joint may involve complex mechanical structures, high temperature and high pressure and other environmental factors during use, disassembly and repair need to face various technical challenges. If the sealing ring is damaged or aged, replacing a new sealing ring may require specific skills and tools, which increases the difficulty of repair. If the correct operating procedures and safety regulations are not followed, it may also cause accidental injuries or accidents. For example, maintenance personnel may come into contact with dangerous parts or toxic substances. Utility Model Content

[0004] The purpose of the invention of the utility model is to overcome the defects described in the background technology, thereby realizing an expansion joint protection device, which can restore the expansion joint to normal operation without disassembling the expansion joint when the expansion joint leaks. The expansion joint only needs to be sleeved on the pressure cover of the expansion joint and the horizontal fastening component and the vertical fastening component are fastened, thereby reducing the maintenance difficulty of the expansion joint and reducing the probability of maintenance personnel contacting dangerous parts or toxic substances without disassembling the expansion joint, thereby ensuring the life safety of the staff.

[0005] To achieve the above-mentioned invention objectives, the technical solution of the utility model is: a telescopic protection device, including a protection ring body, the protection ring body including four arc blocks, the arc blocks are detachably hinged by fastening bolts, both ends of the arc blocks are penetrated from top to bottom with semicircular arc grooves, the adjacent semicircular arc grooves of the two arc blocks constitute a cylindrical groove, the bottom of the arc blocks are detachably fixed with sealing gaskets, the top of the inner ring of the arc block is integrally provided with a limiting strip, the side wall of the inner ring of the arc block below the limiting strip is detachably fixed with a vertical sealing strip, the arc blocks at both ends of the protection ring body are provided with horizontal fastening components, and the side walls of the outer ring of the arc blocks are provided with vertical fastening components.

[0006] In the above expansion joint protection device, the bottom of the side wall end where the vertical sealing belt cooperates with the expansion joint is arranged obliquely.

[0007] In the above-mentioned telescopic protector device, the vertical fastening assembly includes an L-shaped limit block fixedly connected to the outer ring side wall of the arc block, the L-shaped limit block includes an integrally arranged connecting part and an adjusting part, the bottom surface of the connecting part fits in the top surface of the pressure cover, the inner side surface of the adjusting part is an arc surface arranged to fit in the side wall of the pressure cover, and a sliding groove is also provided on the inner side surface, an adjusting block is slidably arranged in the sliding groove, a plurality of equally spaced adjusting holes are vertically penetrated through the side surface of the adjusting part, matching holes are provided at corresponding positions of the adjusting block, a threaded hole is provided in the middle of the adjusting block, and a tightening bolt is inserted in the threaded hole.

[0008] In the above expansion joint protection device, a protection gasket is fixedly provided at the bottom of the tightening bolt.

[0009] In the above telescopic protection device, the horizontal fastening assembly includes two limit blocks fixedly connected to the two arc-shaped block side walls at the ends of the protection ring body, and through holes are formed through the sides of the two limit blocks, and matching bolts are inserted into the through holes.

[0010] In the above expansion joint protection device, the two limit blocks are symmetrically arranged.

[0011] In the above-mentioned expansion joint protection device, the size of the cylindrical groove is larger than the outer diameter of the limiting screw and the gland bolt, and the semicircular arc groove of the arc block is detachably provided with a leak-proof rubber pad.

[0012] Compared with the prior art, the telescopic protection device of the utility model has at least the following beneficial effects:

[0013] The utility model discloses a telescope protection device, which can be used when the telescope leaks, without disassembling the telescope, by only unfolding the protection ring body and installing it on the pressure cover of the telescope, and placing the limit screw and the pressure cover bolt of the telescope in the cylindrical groove, and then fine-tuning the adjustment block to a suitable position, and then tightening the adjustment block, and then tightening the horizontal fastening component and the vertical fastening component, so that the device can perform a new seal at the sealing ring of the telescope to restore the normal operation of the telescope. The device reduces the maintenance difficulty of the telescope, and the maintenance method without disassembling the telescope can reduce the probability of maintenance personnel contacting dangerous parts or toxic substances, thereby ensuring the life safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the expansion joint protection device of the utility model in the use state;

[0015] Figure 2 It is a schematic diagram of the overall structure of the telescopic device protection device of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the expansion joint protection device of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the protection ring body of the expansion joint protection device of the utility model;

[0018] Figure 5 The utility model is a schematic cross-sectional structure diagram of the protective ring body of the expansion joint protective device when it is opened.

[0019] In the figure: 1, protective ring body; 11, arc block; 12, fastening bolt; 13, cylindrical groove; 131, semicircular arc groove; 14, limit strip; 15, leak-proof rubber pad;

[0020] 2. Sealing gasket; 3. Vertical sealing tape;

[0021] 4. Horizontal fastening assembly; 41. Limit block; 42. Matching bolt;

[0022] 5. Vertical fastening assembly; 51. L-shaped limit block; 511. Connecting part; 512. Adjusting part; 513. Sliding groove; 514. Adjusting hole; 52. Adjusting block; 53. Threaded hole; 54. Tightening bolt; 55. Protective gasket; 6. Main body; 7. Limiting screw; 8. Gland bolt; 9. Sealing ring 10. Gland. DETAILED DESCRIPTION

[0023] The expansion joint protection device of the present invention is described in more detail below with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The telescopic device protection device of this embodiment, see Figure 1-Figure 5 When the expansion joint leaks, the device can restore the expansion joint to normal operation without disassembling the expansion joint. The protective ring body only needs to be put on the pressure cover of the expansion joint, and the horizontal fastening component and the vertical fastening component are fastened, so as to reduce the maintenance difficulty of the expansion joint. The expansion joint does not need to be disassembled, thereby reducing the probability of maintenance personnel contacting dangerous parts or toxic substances, and ensuring the life safety of the staff. It mainly includes a protective ring body 1, which includes four arc blocks 11. The arc blocks 11 are detachably hinged by fastening bolts 12. When the four arc blocks 11 are connected end to end, they form a circular ring with an inner diameter slightly larger than the outer diameter of the main body 6. Semi-circular arc grooves 131 are penetrated from top to bottom at both ends of the arc blocks 11. The adjacent semi-circular arc grooves 131 of two arc blocks 11 form a cylindrical groove 13. The size of the cylindrical groove 13 is slightly larger than the outer diameter of the limiting screw 7 and the pressure cover bolt 8. The semi-circular arc groove 131 of the arc block 11 is fitted with a leak-proof rubber pad 15 to prevent the fluid from flowing out along the cylindrical groove 13 in the protective device. A sealing gasket 2 is detachably fixedly provided at the bottom of the arc block 11, a limiting strip 14 is integrally provided at the top of the inner ring of the arc block 11, and a vertical sealing strip 3 is detachably fixedly provided on the side wall of the inner ring of the arc block 11 below the limiting strip 14. The bottom of the side wall end of the vertical sealing strip 3 that cooperates with the expansion joint is inclined. Since the sealing ring 9 in the expansion joint is conical, such a configuration makes it easy for the vertical sealing strip 3 to fit the bottom conical surface of the sealing ring 9 of the expansion joint.

[0026] In order to prevent the fluid from flowing out of the protection ring body, in this embodiment, see Figure 1 and Figure 2 , the arc blocks 11 at both ends of the protection ring body 1 are provided with horizontal fastening components 4 to limit the horizontal movement of the protection ring body 1, so that the upper side of the vertical sealing belt 3 is tightly attached to the outer wall of the body 6, and the lower side is tightly attached to the bottom conical surface of the sealing ring 9. The horizontal fastening component 4 includes two limit blocks 41 fixedly connected to the side walls of the two arc blocks 11 at the ends of the protection ring body 1, and the sides of the two limit blocks 41 are penetrated with through holes, and the through holes are inserted with matching bolts 42. The two limit blocks 41 are symmetrically arranged, and the matching bolts 42 are inserted into the through holes and fastened by nuts.

[0027] In this embodiment, see Figure 2 and Figure 3 , the outer ring side wall of the arc block 11 is provided with a vertical fastening assembly 5. The vertical fastening assembly 5 includes an L-shaped limit block 51 fixedly connected to the outer ring side wall of the arc block 11, and the L-shaped limit block 51 includes an integrally arranged connecting portion 511 and an adjusting portion 512, the bottom surface of the connecting portion 511 fits the top surface of the gland 10, the inner side surface of the adjusting portion 512 is an arc surface arranged to fit the side wall of the gland 10, and a sliding groove 513 is also provided on the inner side surface, and an adjusting block 52 is slidably arranged in the sliding groove 513, and a plurality of adjusting holes 514 with equal spacing are vertically penetrated through the side surface of the adjusting portion 512, and the adjusted adjusting block 52 is fixed by the adjusting holes 514, and a matching hole is provided at the corresponding position of the adjusting block 52, and a threaded hole 53 is provided in the middle of the adjusting block 52, and a tightening bolt 54 is inserted in the threaded hole 53. The tightening bolt 54 is used to tighten the vertical displacement of the protection ring body 1. A protection gasket 55 is fixedly arranged at the bottom of the tightening bolt 54 so as to protect the bottom surface of the expansion joint pressure cover 10 from wear during tightening.

[0028] The method of using the expansion joint protection device of the utility model is as follows: when the expansion joint leaks, there is no need to disassemble the expansion joint, and the protective ring body 1 only needs to be unfolded and installed on the pressure cover 10 of the expansion joint, and the limit screw 7 and the pressure cover bolt 8 of the expansion joint are placed in the cylindrical groove 13, and the adjustment block 52 is fine-tuned to a suitable position, and then the adjustment block 52 is tightened, and then the horizontal fastening component 4 and the vertical fastening component 5 are tightened, so that the device performs a new seal at the sealing ring 9 of the expansion joint to restore the expansion joint to normal operation. The device reduces the difficulty of repairing the expansion joint, and the repair method without disassembling the expansion joint can reduce the probability of maintenance personnel contacting dangerous parts or toxic substances, thereby ensuring the life safety of the staff.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprise" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0030] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. A retractor protection device, characterized in that: The protective ring body (1) comprises four arc blocks (11), wherein the arc blocks (11) are detachably hinged to each other via fastening bolts (12), semi-circular arc grooves (131) are provided at both ends of the arc blocks (11) from top to bottom, and the adjacent semi-circular arc grooves (131) of the two arc blocks (11) form a cylindrical groove (13), and sealing gaskets (2) are detachably fixedly provided at the bottom of the arc blocks (11), and a limiting strip (14) is integrally provided at the top of the inner ring of the arc blocks (11), and a vertical sealing strip (3) is detachably fixedly provided on the inner ring side wall of the arc blocks (11) below the limiting strip (14), and horizontal fastening components (4) are provided on the arc blocks (11) at both ends of the protective ring body (1), and vertical fastening components (5) are provided on the outer ring side walls of the arc blocks (11).

2. The retractor protection device according to claim 1, characterized in that: The bottom of the side wall end where the vertical sealing strip (3) cooperates with the retractor is arranged obliquely.

3. The retractor protection device according to claim 1, characterized in that: The vertical fastening assembly (5) comprises an L-shaped limit block (51) fixedly connected to the outer ring side wall of the arc block (11), the L-shaped limit block (51) comprising an integrally arranged connecting portion (511) and an adjusting portion (512), the bottom surface of the connecting portion (511) being in contact with the top surface of the pressure cover, the inner side surface of the adjusting portion (512) being an arc surface so as to be in contact with the side wall of the pressure cover, and a sliding groove (513) being provided on the inner side surface, an adjusting block (52) being slidably arranged in the sliding groove (513), a plurality of adjusting holes (514) being vertically penetrated through the side surface of the adjusting portion (512) at equal intervals, a matching hole being provided at a corresponding position of the adjusting block (52), a threaded hole (53) being provided in the middle of the adjusting block (52), and a tightening bolt (54) being inserted into the threaded hole (53).

4. The retractor protection device according to claim 3, characterized in that: A protective gasket (55) is fixedly arranged at the bottom of the tightening bolt (54).

5. The retractor protection device according to claim 1, characterized in that: The horizontal fastening assembly (4) comprises two limit blocks (41) respectively fixedly connected to the side walls of the two arc-shaped blocks (11) at the ends of the protection ring body (1), and through holes are formed through the sides of the two limit blocks (41), and matching bolts (42) are inserted into the through holes.

6. The retractor protection device according to claim 5, characterized in that: The two limit blocks (41) are symmetrically arranged.

7. The retractor protection device according to claim 1, characterized in that: The size of the cylindrical groove (13) is larger than the outer diameter of the limiting screw (7) and the gland bolt (8), and the semicircular arc groove (131) of the arc block (11) is fitted with a leak-proof rubber pad (15).

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