High-stability vacuum corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a high-stability vacuum corrugated pipe which comprises two corrugated pipe bodies, connecting pieces are installed at the ends, close to each other, of the two corrugated pipe bodies, and a notch is formed in the upper surface of the connecting piece located on the left side; and the inner top wall of the connecting piece located on the right side is slidably connected with a plurality of sliding pieces, the multiple sliding pieces are connected with the notches in a clamped mode, the outer surface of the connecting piece located on the right side is rotatably connected with a rotating frame, and the inner wall of the rotating frame is fixedly connected with a plurality of arc-shaped top blocks. According to the high-stability vacuum corrugated pipe, the two connecting pieces can be locked through cooperation of the mounting connecting piece and the sliding piece, the two connecting pieces can be stably connected, meanwhile, the two connecting pieces are made of high-density plastic materials, so that the two connecting pieces have hardness, the two connecting pieces can be prevented from being adsorbed together, and the service life of the two connecting pieces is prolonged. And meanwhile, mounting and dismounting are convenient, so that the overall practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bellows, and in particular to a high-stability vacuum bellows. Background Art

[0002] Bellows refers to a tubular elastic sensitive element made of foldable corrugated sheets connected along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to serve as a measuring element for pressure measuring instruments to convert pressure into displacement or force. The bellows has a thin wall and high sensitivity. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary coil spring or reed is used to increase its elasticity.

[0003] An existing patent (publication number: CN215674050U) discloses a vacuum leak-proof bellows comprising a bellows body with an integrally formed ring tube on the outer surface, and folded corrugated sheets integrally connected between the ring tubes. A vacuum layer is provided within the bellows body, and a tempered soft film is provided on the inner surface of the vacuum layer. A transparent sheet is integrally mounted on the surface of the folded corrugated sheet. A positioning mechanism is sleeved on the outer side of one end of the bellows body, and a sealing mechanism is embedded in the inner wall of one end of the bellows body. The ring tube and folded corrugated sheet are integrally connected, and the transparent sheet is integrated with the folded corrugated sheet. The transparent sheet allows for observation of the interior of the bellows body from the position of the folded corrugated sheet, facilitating inspection and maintenance. The tempered soft film increases the rigidity of the inner wall of the bellows body, preventing wall fracture, and cooperates with the vacuum layer to improve the sealing performance of the bellows body.

[0004] When installing the above-mentioned document, it is necessary to install a connector and a threaded sleeve at one end of the bellows. Since the threaded sleeve and the connector are both made of metal, and after being connected for a long time, the connection will rust due to wear and moisture, and the two will stick to each other, making it inconvenient to disassemble the two. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present application provides a high-stability vacuum bellows with advantages such as easy installation and disassembly, solving the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a high-stability vacuum bellows, comprising two bellows bodies, wherein a connecting piece is installed at one end of the two bellows bodies close to each other, a notch is provided on the upper surface of the connecting piece on the left side, and a plurality of sliding pieces are slidably connected to the inner top wall of the connecting piece on the right side, and the plurality of sliding pieces are all engaged with the notch, and the outer surface of the connecting piece on the right side is rotatably connected to a rotating frame, and a plurality of arc-shaped top blocks are fixedly connected to the inner wall of the rotating frame, and the plurality of arc-shaped top blocks are all in contact with the sliding piece close to it.

[0007] Through the above solution, the two connecting members can be locked by the cooperation between the installation connecting member and the sliding member, so that the two connecting members can be stably connected.

[0008] Furthermore, a group of reinforcing wires are installed inside the two bellows bodies, and the two groups of reinforcing wires are symmetrical.

[0009] Through the above solution, the provision of reinforcing wires can improve the toughness of the two bellows bodies, thereby improving the compressive performance of the two bellows bodies.

[0010] Furthermore, one end of each of the plurality of sliding members that is away from each other is fixedly connected to a spring, and the other ends of each of the plurality of springs are fixedly connected to the inner wall of the right connecting member.

[0011] Through the above solution, the installation spring can drive the sliding part to reset through the deformation force of the spring, thereby releasing the limit on the left connecting part and facilitating the disassembly of the two bellows bodies.

[0012] Furthermore, a connecting port is provided on the right side of the connecting member on the left, a connecting ring is fixedly connected to the left side of the connecting member on the right, the connecting ring is threadedly connected to the connecting port, and a first sealing ring is provided between the connecting ring and the connecting port.

[0013] Through the above solution, installing the first sealing ring can improve the sealing between the two connecting parts, so that the two connecting parts can be tightly connected and maintain good sealing.

[0014] Furthermore, a second sealing ring is provided between the two connecting members, and the second sealing ring is in a deformed state.

[0015] Through the above solution, installing the second sealing ring can improve the sealing between the two connecting parts, so that the two connecting parts can have a connection with higher sealing performance.

[0016] Furthermore, a plurality of threaded holes are provided between the rotating frame and the right connecting member, and a plurality of bolts are provided on the outer surface of the right connecting member, and the plurality of bolts are all threadedly connected to the threaded holes adjacent thereto.

[0017] With the above solution, the rotation frame can be limited by arranging the cooperation between the bolts and the threaded holes, so that the rotation frame can maintain a stable state.

[0018] Furthermore, a slide rail is installed on the left side of the right connecting member, and the left connecting member is slidably connected to the slide rail.

[0019] Through the above solution, installing the slide rail can limit the left connecting piece, which is convenient for positioning the two connecting pieces during installation.

[0020] Furthermore, the two bellows bodies are both made of high-density polyethylene.

[0021] Through the above solution, the bellows is made of high-density polyethylene, which has the properties of high strength, high toughness and corrosion resistance, so that the bellows body can have a long service life.

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

[0023] This high-stability vacuum bellows can lock the two connecting parts by installing the connecting parts and the sliding parts, so that the two connecting parts can be stably connected. At the same time, both connecting parts are made of high-density plastic material to make them hard and avoid the two connecting parts from being adsorbed together. At the same time, installation and disassembly are relatively convenient, thereby improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall structure of the application Figure 1 ;

[0025] Figure 2 For this application Figure 1 A magnified schematic diagram of the structure at A;

[0026] Figure 3 This is the overall structure of the application Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the overall structure of this application.

[0028] In the picture:

[0029] 1. Bellows body; 2. Connector; 3. Notch; 4. Sliding part; 5. Rotating frame; 6. Arc-shaped top block; 7. Reinforcement wire; 8. Spring; 9. Connecting port; 10. Connecting ring; 11. First sealing ring; 12. Second sealing ring; 13. Threaded hole; 14. Bolt; 15. Slide rail. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 1 、 Figure 2 and Figure 3 , a high-stability vacuum bellows in this embodiment includes two bellows bodies 1, and one end of the two bellows bodies 1 close to each other is equipped with a connecting piece 2. The upper surface of the connecting piece 2 on the left is provided with a notch 3, and the inner top wall of the connecting piece 2 on the right is slidably connected to multiple sliding pieces 4, and multiple sliding pieces 4 are all engaged with the notch 3. The outer surface of the connecting piece 2 on the right is rotatably connected to a rotating frame 5, and the inner wall of the rotating frame 5 is fixedly connected to multiple arc-shaped top blocks 6, and multiple arc-shaped top blocks 6 are in contact with the sliding piece 4 close to it. The two connecting pieces 2 are made of high-density plastic material. By installing the connecting piece 2 and the sliding piece 4, the two connecting pieces 2 can be locked, so that the two connecting pieces 2 can be stably connected. At the same time, the two connecting pieces 2 are made of high-density plastic material to make them hard while preventing the two connecting pieces 2 from being adsorbed together. At the same time, installation and disassembly are relatively convenient, thereby improving the overall practicality.

[0032] See also Figure 1 、 Figure 2 and Figure 3 , a group of reinforcing wires 7 are installed inside the two bellows bodies 1, and the two groups of reinforcing wires 7 are symmetrical. The provision of the reinforcing wires 7 can improve the toughness of the two bellows bodies 1, thereby improving the pressure resistance of the two bellows bodies 1. The ends of the multiple sliding members 4 away from each other are fixedly connected with springs 8, and the other ends of the multiple springs 8 are fixedly connected to the inner wall of the right connecting member 2. The installation of the springs 8 can drive the sliding member 4 to reset through the deformation force of the springs 8, thereby releasing the limit on the left connecting member 2, making it easy to disassemble the two bellows bodies 1. A connecting port 9 is provided on the right side of the connecting member 2 on the left, and a connecting ring 10 is fixedly connected to the left side of the connecting member 2 on the right. The connecting ring 10 is threadedly connected to the connecting port 9, and a first sealing ring 11 is provided between the connecting ring 10 and the connecting port 9. Installing the first sealing ring 11 can improve the sealing between the two connecting members 2, so that the two connecting members 2 can be tightly connected and maintain good sealing.

[0033] See also Figure 1 、 Figure 2 and Figure 4, a second sealing ring 12 is provided between the two connecting parts 2, and the second sealing ring 12 is in a deformed state. Installing the second sealing ring 12 can improve the sealing between the two connecting parts 2, so that the two connecting parts 2 can have a highly sealed connection. A plurality of threaded holes 13 are provided between the rotating frame 5 and the right connecting part 2, and a plurality of bolts 14 are provided on the outer surface of the right connecting part 2. The plurality of bolts 14 are threadedly connected to the threaded holes 13 adjacent to them. By setting the cooperation of the bolts 14 and the threaded holes 13, the rotating frame 5 can be limited so that the rotating frame 5 can maintain a stable state. A slide rail 15 is installed on the left side of the right connecting part 2, and the left connecting part 2 is slidably connected to the slide rail 15. Installing the slide rail 15 can limit the left connecting part 2, which is convenient for positioning the two connecting parts 2 during installation. The two bellows bodies 1 are both made of high-density polyethylene. The bellows made of high-density polyethylene can have high strength, high toughness and corrosion resistance, so that the bellows body 1 can have a long service life.

[0034] A high-stability vacuum bellows in this embodiment can lock the two connecting parts 2 by installing the connecting parts 2 and the sliding part 4, so that the two connecting parts 2 can be stably connected. At the same time, the two connecting parts 2 are made of high-density plastic material to make them hard while preventing the two connecting parts 2 from being adsorbed together. At the same time, installation and disassembly are relatively convenient, thereby improving the overall practicality.

[0035] The working principle of the above embodiment is as follows: when connecting the two bellows, the left connecting piece 2 is threadedly connected to the right connecting piece 2, and the two connecting pieces 2 can be stably connected by installing the first sealing ring 11 and the second sealing ring 12, while maintaining a high sealing performance between the two connecting pieces 2. When the two connecting pieces 2 are connected, the rotating frame 5 is rotated and the arc-shaped top block 6 pushes the sliding piece 4 into the notch 3, thereby limiting the left connecting piece 2 and enabling the two connecting pieces 2 to be stably connected together. When the two connecting pieces 2 are installed, the two connecting pieces 2 are fixed together using the bolts 14 and the threaded holes 13. By installing the connector 2 and cooperating with the sliding member 4, the two connectors 2 can be locked so that the two connectors 2 can be stably connected. At the same time, the two connectors 2 are made of high-density plastic material to make them hard while avoiding the two connectors 2 from being adsorbed together. At the same time, installation and disassembly are relatively convenient, thereby improving the overall practicality. The provision of the reinforcing wire 7 can improve the toughness of the two bellows bodies 1, thereby improving the compressive performance of the two bellows bodies 1. The bellows are made of high-density polyethylene to have high strength, high toughness and corrosion resistance, so that the bellows body 1 can have a longer service life, thereby improving the overall practicality.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-stability vacuum bellows, comprising two bellows bodies (1), characterized in that: A connecting piece (2) is installed at one end of the two bellows bodies (1) close to each other, a notch (3) is provided on the upper surface of the connecting piece (2) on the left, a plurality of sliding pieces (4) are slidably connected to the inner top wall of the connecting piece (2) on the right, and the plurality of sliding pieces (4) are all engaged with the notch (3), and a rotating frame (5) is rotatably connected to the outer surface of the connecting piece (2) on the right, and a plurality of arc-shaped top blocks (6) are fixedly connected to the inner wall of the rotating frame (5), and the plurality of arc-shaped top blocks (6) are all in contact with the sliding piece (4) close to it.

2. The high-stability vacuum bellows according to claim 1, characterized in that: A group of reinforcing wires (7) is installed inside each of the two bellows bodies (1), and the two groups of reinforcing wires (7) are symmetrical.

3. The high-stability vacuum bellows according to claim 1, characterized in that: One end of each of the plurality of sliding members (4) that is away from each other is fixedly connected to a spring (8), and the other end of each of the plurality of springs (8) is fixedly connected to the inner wall of the right connecting member (2).

4. The high-stability vacuum bellows according to claim 1, characterized in that: A connecting port (9) is provided on the right side of the connecting member (2) on the left side, and a connecting ring (10) is fixedly connected to the left side of the connecting member (2) on the right side. The connecting ring (10) is threadedly connected to the connecting port (9), and a first sealing ring (11) is provided between the connecting ring (10) and the connecting port (9).

5. The high-stability vacuum bellows according to claim 1, characterized in that: A second sealing ring (12) is provided between the two connecting members (2), and the second sealing ring (12) is in a deformed state.

6. The high-stability vacuum bellows according to claim 1, characterized in that: A plurality of threaded holes (13) are provided between the rotating frame (5) and the right connecting member (2), and a plurality of bolts (14) are provided on the outer surface of the right connecting member (2), and the plurality of bolts (14) are all threadedly connected to the adjacent threaded holes (13).

7. The high-stability vacuum bellows according to claim 1, characterized in that: A slide rail (15) is installed on the left side of the right connecting member (2), and the left connecting member (2) is slidably connected to the slide rail (15).

8. The high-stability vacuum bellows according to claim 1, characterized in that: The two bellows bodies (1) are both made of high-density polyethylene.

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