Jacket type metal corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a jacket type metal corrugated pipe which comprises a pipeline body, fixing mechanisms are arranged on the two sides of the pipeline body, outer sliding grooves are formed in the fixing mechanisms, outer sliding blocks are installed on the side walls of the outer sliding grooves in a sliding mode, fixing blocks are fixedly installed on the outer sliding blocks, and the outer sliding blocks are provided with clamping grooves. According to the technical scheme, the fixing mechanism can be fixed by arranging the fixing blocks and the outer sliding blocks, and the corrugated pipe can be conveniently installed on the fixing mechanism by arranging the clamping plates and the clamping blocks, so that the corrugated pipe can be conveniently installed on the fixing mechanism, and the corrugated pipe can be conveniently installed on the fixing mechanism through the clamping plates and the clamping blocks. And all the structures are matched with one another, so that time is saved, and higher efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a jacketed metal bellows. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as measuring elements of pressure measuring instruments to convert pressure into displacement or force. The bellows has a thinner wall and higher sensitivity, with a measuring range of tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase elasticity. When working, it stretches along the length of the tube under the action of internal pressure, causing the movable end to produce a displacement that is related to the pressure. The movable end drives the pointer to directly indicate the size of the pressure. Bellows are often combined with displacement sensors to form pressure sensors with output as electrical quantity, and are sometimes used as isolation elements. Since the extension of bellows requires a larger volume change, its response speed is lower than that of Bourdon tubes. Bellows are suitable for measuring low pressures.

[0003] The patent document with the published announcement number CN 218152980 U discloses a jacketed double-layer bellows, including an inner bellows, an outer bellows is arranged outside the inner bellows, a supporting mechanism is arranged between the inner bellows and the outer bellows, a left pipe head is fixed to the left side of the inner bellows and the outer bellows, a right pipe head is fixed to the right side of the inner bellows and the outer bellows, and a fixing mechanism is arranged on the outer peripheral wall of the left pipe head and the outer peripheral wall of the right pipe head. The jacketed double-layer bellows structure can insert the left pipe head of the next section of the double-layer bellows into the fixing groove of the previous section of the double-layer bellows through the cooperation of the left pipe head and the fixing groove, so as to achieve the purpose of connection, and can screw the fixing bolt into the inside of the first threaded hole and the second threaded hole through the cooperation of the first threaded hole, the second threaded hole and the fixing bolt, so as to achieve the effect of fixing the two sections of the double-layer bellows, and can seal the opening of the first threaded hole through the cooperation of the sealing gasket, so as to prevent liquid leakage.

[0004] The existing device cannot be conveniently moved when the installation position needs to be changed, and it is not convenient enough to disassemble the bellows. Therefore, a jacketed metal bellows is needed. Utility Model Content

[0005] The utility model aims to provide a jacketed metal bellows to solve the problems raised in the background technology.

[0006] An embodiment of the present application provides a jacketed metal bellows, including a pipe body, fixing mechanisms are arranged on both sides of the pipe body, an outer slide groove is provided on the fixing mechanism, an outer sliding block is slidably installed on the side wall of the outer slide groove, a fixing block is fixedly installed on the outer sliding block, two threaded grooves are provided on the fixing block, a fixing groove is provided on the outer slide groove, a plurality of fixing grooves are provided, and a fixing groove is also provided on the outer sliding block.

[0007] In this technical solution, when the bellows needs to be installed on the fixing mechanism, the position of the card plate on the sliding groove is moved according to the size of the bellows to adapt to the size of the bellows, and then the sleeve is pulled to make the inner rod leak out, the card plate and the card block are installed together, and then the sleeve is pressed down so that the card block clamps the card plate, and then the position of the outer slider on the outer slide groove is adjusted, and the outer slider is fixed in the fixing groove on the outer slide groove by bolts, and the outer slider is fixed to the fixing mechanism. When the bellows expands due to heat, the arc plate is squeezed, and when the arc plate is moved by external force, it will drive the connecting rod to rotate, thereby driving the inner slider to move on the inner slide groove to adapt to the expansion.

[0008] Optionally, an inner sliding groove is provided on the fixing mechanism, an inner sliding block is slidably installed on the side wall of the inner sliding groove, a connecting rod is hinged at the lower end of the inner sliding block, an installation groove is provided on the other side of the connecting rod, a fixing plate is hinged on the installation groove, an arc plate is fixedly installed on the other end of the fixing plate, and a clamping plate is provided on the arc plate.

[0009] By adopting the above technical solution, when the arc-shaped plate is moved by external force, it will drive the connecting rod to rotate, thereby driving the inner sliding block to move on the inner sliding groove.

[0010] Optionally, a sliding groove is provided on the arc plate, the clamping plate is slidably installed in the sliding groove, a rotating shaft is provided on the connecting rod, and the fixed plate is rotatably installed on the rotating shaft.

[0011] By adopting the above technical solution, when adjustment is required according to the bellows, the position of the clamping plate on the sliding groove can be adjusted.

[0012] Optionally, blocks are fixedly mounted on both side walls of the pipe body.

[0013] By adopting the above technical solution, it is convenient to fix the corrugated pipe through the cooperation of the clamping block and the clamping plate.

[0014] Optionally, the clamping block includes an inner rod, a sleeve is provided on the inner rod, the inner rod is slidably mounted on an inner wall of the sleeve, and a plurality of air holes are formed at one end of the sleeve away from the inner rod.

[0015] By adopting the above technical solution, when fixing is required, the sleeve is pressed down so that the clamping block clamps the clamping plate. When disassembly is required, the sleeve is pulled so that the inner rod leaks out and can be disassembled.

[0016] Optionally, the fixing groove on the outer sliding groove and the fixing groove on the outer sliding block are of the same size, and threads are provided on the inner walls of both.

[0017] By adopting the above technical solution, the outer sliding block can be fixedly installed in the fixing groove on the outer sliding groove by bolts, and the outer sliding block can be fixed on the fixing mechanism.

[0018] Optionally, a ball is provided at the lower end of the card plate, and the ball is installed in a sliding groove.

[0019] By adopting the above technical solution, the friction during movement is reduced and the pallet is moved better.

[0020] Optionally, a coating is provided on the inner wall of the sleeve, and the coating is made of a material with low friction.

[0021] By adopting the above technical solution, the sleeve is easy to move and the user experience is improved.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application can fix the fixing mechanism by providing a fixing block and an outer sliding block, and by providing a clamping plate and a clamping block, it is easy to install the bellows on the fixing mechanism, which is more convenient. The various structures cooperate with each other, saving time and being more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a jacketed metal bellows of the utility model;

[0026] Figure 2 It is a top view structural schematic diagram of a fixing mechanism in a jacketed metal bellows of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of A in a jacketed metal bellows of the utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of a clamping block in a jacketed metal bellows of the utility model;

[0029] Figure 5 It is a front view of a clamping plate in a jacketed metal bellows of the utility model.

[0030] In the figure: 1. pipe body; 2. fixing mechanism; 3. fixing block; 4. threaded groove; 5. outer slide groove; 6. outer slider; 7. inner slider; 8. connecting rod; 9. fixing plate; 10. arc plate; 11. clamping plate; 12. inner slide groove; 13. sliding groove; 14. rotating shaft; 15. clamping block; 16. inner rod; 17. casing; 18. air hole. DETAILED DESCRIPTION

[0031] See also Figure 1-5 The utility model provides a technical solution: a jacketed metal bellows, comprising a pipe body 1, fixing mechanisms 2 are arranged on both sides of the pipe body 1, an outer slide groove 5 is opened on the fixing mechanism 2, an outer slide block 6 is slidably installed on the side wall of the outer slide groove 5, a fixing block 3 is fixedly installed on the outer slide block 6, two thread grooves 4 are opened on the fixing block 3, a fixing groove is opened on the outer slide groove 5, a plurality of fixing grooves are opened, and a fixing groove is also opened on the outer slide block 6.

[0032] In the technical solution of the utility model, if Figure 2 As shown, the fixing mechanism 2 is provided with an inner slide groove 12, and an inner slider 7 is slidably installed on the side wall of the inner slide groove 12. A connecting rod 8 is hinged at the lower end of the inner slider 7, and a mounting groove is provided on the other side of the connecting rod 8. A fixing plate 9 is hinged on the mounting groove, and an arc plate 10 is fixedly installed at the other end of the fixing plate 9. A clamping plate 11 is provided on the arc plate 10. When the arc plate 10 is moved by external force, the connecting rod 8 is driven to rotate, thereby driving the inner slider 7 to move on the inner slide groove 12.

[0033] In the technical solution of the utility model, if Figure 3 As shown, a sliding groove 13 is provided on the arc plate 10, and the clamping plate 11 is slidably installed in the sliding groove 13. A rotating shaft 14 is provided on the connecting rod 8, and the fixed plate 9 is rotatably installed on the rotating shaft 14. When adjustment is required according to the corrugated pipe, the position of the clamping plate 11 on the sliding groove 13 can be adjusted.

[0034] In the technical solution of the utility model, if Figure 1 As shown, clamping blocks 15 are fixedly mounted on the side walls of the pipe body 1 on both sides, so as to facilitate fixing the corrugated pipe through the cooperation of the clamping blocks 15 and the clamping plates 11 .

[0035] In the technical solution of the utility model, if Figure 4As shown, the clamping block 15 includes an inner rod 16, on which a sleeve 17 is provided. The inner rod 16 is slidably mounted on the inner wall of the sleeve 17, and a plurality of air holes 18 are provided at one end of the sleeve 17 away from the inner rod 16. When fixation is required, the sleeve 17 is pressed down so that the clamping block 15 clamps the clamping plate 11. When disassembly is required, the sleeve 17 is pulled so that the inner rod 16 leaks out and can be removed.

[0036] In the technical solution of the utility model, if Figure 1 As shown, the fixed groove on the outer slide groove 5 and the fixed groove on the outer slider 6 are of the same size, and threads are provided on the inner walls. The outer slider 6 can be fixed in the fixed groove on the outer slide groove 5 by bolts to fix the outer slider 6 on the fixing mechanism 2.

[0037] In the technical solution of the utility model, if Figure 5 As shown, a ball is provided at the lower end of the card plate 11, and the ball is installed in the sliding groove 13 to reduce the friction during movement and better move the card plate 11.

[0038] In the technical solution of the utility model, if Figure 4 As shown, a coating is provided on the inner wall of the sleeve 17, and the coating is made of a material with low friction, which facilitates the movement of the sleeve 17 and improves the user experience.

[0039] In this technical solution, when the bellows needs to be installed on the fixing mechanism 2, the position of the card plate 11 on the sliding groove 13 is moved according to the size of the bellows to adapt to the size of the bellows, and then the sleeve 17 is pulled to make the inner rod 16 leak out, the card plate 11 and the block 15 are installed together, and then the sleeve 17 is pressed down so that the block 15 clamps the card plate 11, and then the position of the outer slider 6 on the outer slide groove 5 is adjusted, and the outer slider 6 is fixedly installed in the fixing groove on the outer slide groove 5 by bolts, and the outer slider 6 is fixed to the fixing mechanism 2. When the bellows expands due to heat, the arc plate 10 is squeezed. When the arc plate 10 is moved by external force, it will drive the connecting rod 8 to rotate, thereby driving the inner slider 7 to move on the inner slide groove 12 to adapt to the expansion.

Claims

1. A jacketed metal bellows, characterized in that: The invention comprises a pipe body (1), wherein fixing mechanisms (2) are arranged on both sides of the pipe body (1), an outer slide groove (5) is provided on the fixing mechanism (2), an outer slide block (6) is slidably mounted on the side wall of the outer slide groove (5), a fixing block (3) is fixedly mounted on the outer slide block (6), two thread grooves (4) are provided on the fixing block (3), a fixing groove is provided on the outer slide groove (5), a plurality of fixing grooves are provided, and a fixing groove is also provided on the outer slide block (6).

2. A jacketed metal bellows according to claim 1, characterized in that: The fixing mechanism (2) is provided with an inner slide groove (12), an inner slide block (7) is slidably mounted on the side wall of the inner slide groove (12), a connecting rod (8) is hingedly connected to the lower end of the inner slide block (7), the other side of the connecting rod (8) is provided with an installation groove, a fixing plate (9) is hingedly connected to the installation groove, an arc plate (10) is fixedly mounted on the other end of the fixing plate (9), and a clamping plate (11) is arranged on the arc plate (10).

3. A jacketed metal bellows according to claim 2, characterized in that: The arc-shaped plate (10) is provided with a sliding groove (13), the clamping plate (11) is slidably mounted in the sliding groove (13), the connecting rod (8) is provided with a rotating shaft (14), and the fixed plate (9) is rotatably mounted on the rotating shaft (14).

4. The jacketed metal bellows according to claim 1, characterized in that: Blocks (15) are fixedly mounted on the side walls of both sides of the pipeline body (1).

5. A jacketed metal bellows according to claim 4, characterized in that: The clamping block (15) comprises an inner rod (16), a sleeve (17) is arranged on the inner rod (16), the inner rod (16) is slidably mounted on the inner wall of the sleeve (17), and a plurality of air holes (18) are formed at one end of the sleeve (17) away from the inner rod (16).

6. The jacketed metal bellows according to claim 1, characterized in that: The fixing groove on the outer sliding groove (5) and the fixing groove on the outer sliding block (6) are of the same size, and threads are formed on the inner walls of both.

7. The jacketed metal bellows according to claim 3, characterized in that: A ball is provided at the lower end of the clamping plate (11), and the ball is installed in the sliding groove (13).

8. The jacketed metal bellows according to claim 5, characterized in that: The inner wall of the sleeve (17) is provided with a coating, and the coating is made of a material with low friction.

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