Special low-temperature-resistant welded corrugated pipe

By introducing filter boxes and shock-absorbing connecting rods into welded corrugated pipes, the problem that existing welded corrugated pipes cannot intercept liquid impurities is solved, and the interception and buffering performance of impurities is improved, which extends the service life and reduces maintenance costs. .

CN222164023UActive Publication Date: 2024-12-13LIAONING WEIYAN CORRUGATED PIPE MFG CO LTD
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Patent Information

Application Number
CN202323619831.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2024-12-13
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

The existing welded bellows lack the filtering function and cannot intercept impurities in the liquid flowing through the pipe, resulting in impurities problems during use.

Method used

A special welded corrugated pipe for low temperature resistance is designed, adopting a filter box structure, including a filter mesh plate and a tight block, which can intercept impurities flowing through the tube, and at the same time, the insulation of shock-absorbing connecting rods and polyurethane foaming materials is installed in the tube body. layer to improve buffering and insulation performance.

Benefits of technology

The interception of impurities in the convection through the pipe is achieved, which extends the service life of the pipe body, and improves the buffering and insulation performance of the pipe body through shock absorption and insulation layer, reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222164023U_ABST
Patent Text Reader

Abstract

The utility model provides a low-temperature-resistant special welded corrugated pipe which comprises a pipe body I, a pipe body II, a first fixing ring, a second fixing ring and a pull rod, a filter box is arranged between the pipe body I and the pipe body II, and the filter box comprises a first connecting box body, a second connecting box body and a filter screen plate, the first connecting box body and the second connecting box body are connected through fixing bolts, the first connecting box body is communicated with the first pipe body, the second connecting box body is communicated with the second pipe body, a filter screen mounting groove is formed between the first connecting box body and the second connecting box body, the filter screen plate is inserted into the filter screen mounting groove, and a dense pressing block is fixedly mounted at the upper end of the filter screen plate; and the dense pressing block is in tight fit with the opening at the upper end of the filter screen mounting groove. The heat preservation pipe can intercept impurities in liquid flowing through the pipe, has good heat preservation performance and is convenient to apply and popularize.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a special low-temperature resistant welded bellows. Background Art

[0002] Welded bellows is a new type of component that has emerged in recent years at home and abroad. It can generally be used as a sensitive component, sealing component, isolation medium, pipeline connection and temperature compensator, etc. In addition to the advantages of pressure resistance, temperature resistance, corrosion resistance and good sealing, it has two outstanding advantages over traditional formed bellows: large deformation and long service life.

[0003] The prior art discloses the technical field of antifreeze bellows with application number: 202321636919.0, including a bellows body, an anti-corrosion layer is fixed on the bottom end of the inner wall of the bellows body, a filling layer is arranged on the top of the anti-corrosion layer, an insulation layer is arranged on the top of the filling layer, a buffer layer is arranged on the top of the insulation layer, and a reinforcement layer is fixed on the outer surface of the bellows body. The antifreeze bellows adopts a multi-layer structure through the design of the reinforcement layer, the buffer layer and the insulation layer, has good insulation effect and cold-proof effect, is easy to maintain, has low cost, is practical, extends its service life, and significantly reduces maintenance costs. However, the prior art still has the problem that it does not have a filtering function and cannot intercept impurities in the liquid flowing through the pipe. For this reason, we propose a special low-temperature resistant welded bellows to solve the above problems. Utility Model Content

[0004] In view of the deficiencies existing in the above problems, the utility model provides a special low-temperature resistant welded bellows, which can intercept impurities in the liquid flowing through the pipe and has good thermal insulation performance.

[0005] In order to solve the above problems, the technical solution provided by the utility model is as follows:

[0006] A special low-temperature resistant welded corrugated pipe comprises a pipe body 1, a pipe body 2, a first fixing ring, a second fixing ring and a pull rod, the pull rod is penetrated between the first fixing ring and the second fixing ring, a first limit block and a second limit block are fixedly installed on the pull rod, the first limit block is arranged on the left side of the first fixing ring, and the second limit block is arranged on the right side of the second fixing ring, a filter box is arranged between the pipe body 1 and the pipe body 2, the filter box comprises a first connecting box body, a second connecting box body and a filter screen plate, the first connecting box body and the second connecting box body are connected by fixing bolts, the first connecting box body is connected to the pipe body 1, the second connecting box body is connected to the pipe body 2, a filter screen installation groove is formed between the first connecting box body and the second connecting box body, the filter screen plate is inserted into the filter screen installation groove, and a sealing block is fixedly installed on the upper end of the filter screen plate, and the sealing block is tightly fitted with the upper end opening of the filter screen installation groove.

[0007] Furthermore, a shock-absorbing connecting rod is installed between the first fixing ring and the second fixing ring, and the shock-absorbing connecting rod includes a main rod body, a first spring shock absorber and a second spring shock absorber, the first spring shock absorber is fixedly connected between the main rod body and the first fixing ring, and the second spring shock absorber is fixedly connected between the main rod body and the second fixing ring.

[0008] Further, the tube body 1 includes a first main tube body and a first mounting flange, the middle of the first main tube body is a first corrugated portion, the first mounting flange is fixedly arranged on the left side of the first main tube body, and the first mounting flange is fixedly mounted on the first fixing ring by a first mounting bolt, and the tube body 2 includes a second main tube body and a second mounting flange, the middle of the second main tube body is a second corrugated portion, the second mounting flange is fixedly arranged on the right side of the second main tube body, and the second mounting flange is fixedly mounted on the second fixing ring by a second mounting bolt.

[0009] Furthermore, the first connection box is fixedly arranged on the right side of the first main pipe, the second connection box is fixedly arranged on the left side of the second main pipe, a sealing strip is fixedly arranged on the first connection box, and a slot matching the sealing strip is opened on the second connection box.

[0010] Furthermore, a first protective cover is disposed on the outer side of the first corrugated portion, and a second protective cover is disposed on the outer side of the second corrugated portion.

[0011] Furthermore, a first heat-insulating layer is filled between the first corrugated portion and the first protective cover, and a second heat-insulating layer is filled between the second corrugated portion and the second protective cover.

[0012] Furthermore, a lifting handle is fixedly mounted on the upper end of the sealing block.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The first insulation layer and the second insulation layer are made of polyurethane foam material, which has a good insulation effect and reduces the impact of low temperature on the pipe body 1 and the pipe body 2;

[0015] 2. A shock-absorbing connecting rod is provided to improve the buffering performance. When the tube body 1 and the tube body 2 are deformed, the first fixing ring and the second fixing ring will be driven to move, thereby deforming the first spring shock absorber and the second spring shock absorber, thereby buffering the transmitted force;

[0016] 3. A filter box is provided between the pipe body 1 and the pipe body 2, and the filter box can intercept impurities in the liquid flowing through the pipe.

[0017] In summary, this type of low-temperature resistant special welded bellows has wide practicability, and can solve the problem that the prior art proposed in the above background technology still has no filtering function and cannot intercept impurities in the liquid flowing through the pipe, and has broad promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the shock-absorbing connecting rod of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the pipe body 1 and the pipe body 2 of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the filter box of the utility model;

[0022] Figure 5 It is a schematic diagram of the top view of the structure of the first connection box and the second connection box of the utility model.

[0023] Description of main component symbols:

[0024] 1-tube body one, 101-first main tube body, 102-first corrugated part, 103-first mounting flange, 104-first insulation layer, 105-first protective cover, 2-tube body two, 201-second main tube body, 202-second corrugated part, 203-second mounting flange, 204-second insulation layer, 205-second protective cover, 3-first fixing ring, 4-second fixing ring, 5-pull rod, 501-first limit block, 502-second limit block, 6-shock-absorbing connecting rod, 601-main rod body, 602-first spring shock absorber, 603-second spring shock absorber, 7-first mounting bolt, 8-second mounting bolt, 9-filter box, 901-first connecting box body, 90101-sealing strip, 902-second connecting box body, 903-filter screen installation groove, 904-filter screen plate, 905-sealing block, 906-lifting handle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and examples, but the examples are not intended to limit the utility model.

[0026] like Figure 1-5 As shown, an embodiment of the utility model includes a tube body 1, a tube body 2, a first fixing ring 3, a second fixing ring 4 and a pull rod 5, the pull rod 5 is arranged between the first fixing ring 3 and the second fixing ring 4, and the first limit block 501 and the second limit block 502 are fixedly installed on the pull rod 5, the first limit block 501 is arranged on the left side of the first fixing ring 3, and the second limit block 502 is arranged on the right side of the second fixing ring 4.

[0027] The pipe body 1 includes a first main pipe body 101 and a first mounting flange 103. The middle of the first main pipe body 101 is a first corrugated portion 102. The first mounting flange 103 is fixedly arranged on the left side of the first main pipe body 101. The first mounting flange 103 is fixedly installed on the first fixing ring 3 by a first mounting bolt 7. The pipe body 2 includes a second main pipe body 201 and a second mounting flange 203. The middle of the second main pipe body 201 is a second corrugated portion 202. The second mounting flange 203 is fixedly arranged on the right side of the second main pipe body 201. The second mounting flange 203 is fixedly installed on the first fixing ring 3 by a first mounting bolt 7. The second mounting bolt 8 is fixedly installed on the second fixing ring 4, a first protective cover 105 is arranged on the outer side of the first corrugated portion 102, a second protective cover 205 is arranged on the outer side of the second corrugated portion 202, a first thermal insulation layer 104 is filled between the first corrugated portion 102 and the first protective cover 105, a second thermal insulation layer 204 is filled between the second corrugated portion 202 and the second protective cover 205, the first thermal insulation layer 104 and the second thermal insulation layer 204 are made of polyurethane foam material, which has a good thermal insulation effect and reduces the influence of low temperature on the pipe body 1 and the pipe body 2 2.

[0028] A shock-absorbing connecting rod 6 is installed between the first fixing ring 3 and the second fixing ring 4. The shock-absorbing connecting rod 6 includes a main rod body 601, a first spring shock absorber 602 and a second spring shock absorber 603. The first spring shock absorber 602 is fixedly connected between the main rod body 601 and the first fixing ring 3, and the second spring shock absorber 603 is fixedly connected between the main rod body 601 and the second fixing ring 4. The shock-absorbing connecting rod 6 is provided to improve the buffering performance. During the deformation of the tube body 1 and the tube body 2, the first fixing ring 3 and the second fixing ring 4 will be driven to move, thereby causing the first spring shock absorber 602 and the second spring shock absorber 603 to deform, thereby buffering the transmitted force.

[0029] A filter box 9 is arranged between the tube body 1 and the tube body 2. The filter box 9 can intercept impurities in the liquid flowing through the tube. The filter box 9 includes a first connection box 901, a second connection box 902 and a filter screen 904. The first connection box 901 and the second connection box 902 are connected by fixing bolts. The first connection box 901 is connected to the tube body 1, and the second connection box 902 is connected to the tube body 2. The first connection box 901 is fixedly arranged on the right side of the first main tube 101, and the second connection box 902 is fixedly arranged on the left side of the second main tube 201. A sealing strip 90101 is fixedly arranged on the first connection box 901, and a slot matching the sealing strip 90101 is opened on the second connection box 902.

[0030] A filter installation groove 903 is formed between the first connecting box body 901 and the second connecting box body 902. The filter screen plate 904 is inserted into the filter screen installation groove 903. A sealing block 905 is fixedly installed on the upper end of the filter screen plate 904. The sealing block 905 is tightly fitted with the upper end opening of the filter screen installation groove 903. A lifting handle 906 is fixedly installed on the upper end of the sealing block 905.

[0031] The first spring shock absorber 602 and the second spring shock absorber 603 are conventional devices in the art.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low temperature resistant special welded corrugated pipe, comprising a pipe body 1 (1), a pipe body 2 (2), a first fixing ring (3), a second fixing ring (4) and a pull rod (5), wherein the pull rod (5) is arranged between the first fixing ring (3) and the second fixing ring (4), and a first limit block (501) and a second limit block (502) are fixedly installed on the pull rod (5), wherein the first limit block (501) is arranged on the left side of the first fixing ring (3), and the second limit block (502) is arranged on the right side of the second fixing ring (4), characterized in that: A filter box (9) is arranged between the tube body 1 (1) and the tube body 2 (2), and the filter box (9) comprises a first connection box (901), a second connection box (902) and a filter screen plate (904). The first connection box (901) and the second connection box (902) are connected by fixing bolts. The first connection box (901) is connected to the tube body 1 (1), and the second connection box (902) is connected to the tube body 2 (2). A filter screen installation groove (903) is formed between the first connection box (901) and the second connection box (902). The filter screen plate (904) is inserted into the filter screen installation groove (903). A sealing block (905) is fixedly installed on the upper end of the filter screen plate (904), and the sealing block (905) is tightly fitted with the upper end opening of the filter screen installation groove (903).

2. A low temperature resistant special welded bellows as claimed in claim 1, characterized in that: A shock-absorbing connecting rod (6) is installed between the first fixing ring (3) and the second fixing ring (4), and the shock-absorbing connecting rod (6) comprises a main rod body (601), a first spring shock absorber (602) and a second spring shock absorber (603), wherein the first spring shock absorber (602) is fixedly connected between the main rod body (601) and the first fixing ring (3), and the second spring shock absorber (603) is fixedly connected between the main rod body (601) and the second fixing ring (4).

3. A low temperature resistant special welded bellows as claimed in claim 2, characterized in that: The pipe body 1 (1) comprises a first main pipe body (101) and a first mounting flange (103), the middle of the first main pipe body (101) is a first corrugated portion (102), the first mounting flange (103) is fixedly arranged on the left side of the first main pipe body (101), and the first mounting flange (103) is fixedly mounted on the first fixing ring (3) by means of a first mounting bolt (7), and the pipe body 2 (2) comprises a second main pipe body (201) and a second mounting flange (203), the middle of the second main pipe body (201) is a second corrugated portion (202), the second mounting flange (203) is fixedly arranged on the right side of the second main pipe body (201), and the second mounting flange (203) is fixedly mounted on the second fixing ring (4) by means of a second mounting bolt (8).

4. A low temperature resistant special welded bellows as claimed in claim 3, characterized in that: The first connection box (901) is fixedly arranged on the right side of the first main pipe (101), and the second connection box (902) is fixedly arranged on the left side of the second main pipe (201). A sealing strip (90101) is fixedly arranged on the first connection box (901), and a slot that matches the sealing strip (90101) is opened on the second connection box (902).

5. A low temperature resistant special welded bellows as claimed in claim 4, characterized in that: A first protective cover (105) is arranged on the outer side of the first corrugated portion (102), and a second protective cover (205) is arranged on the outer side of the second corrugated portion (202).

6. A low temperature resistant special welded bellows as claimed in claim 5, characterized in that: A first thermal insulation layer (104) is filled between the first corrugated portion (102) and the first protective sleeve (105), and a second thermal insulation layer (204) is filled between the second corrugated portion (202) and the second protective sleeve (205).

7. A low temperature resistant special welded bellows as claimed in claim 6, characterized in that: A lifting handle (906) is fixedly mounted on the upper end of the sealing block (905).