Connecting piece for low-pressure fluid conveying pipe

Abstract

The utility model relates to the technical field of low-pressure fluid conveying pipe connecting pieces, and discloses a low-pressure fluid conveying pipe connecting piece which comprises a first connector and a second connector, a limiting groove is formed in one end of the second connector, a clamping groove is formed in an inner cavity of the limiting groove, and a positioning hole is formed in one end, on the outer side of the limiting groove, of the second connector. A limiting groove is formed in the clamping groove, a first semicircular gasket and a second semicircular gasket are connected to an inner cavity of the limiting groove in a sliding mode, positioning blocks are fixed to the surface of the first semicircular gasket and the surface of the second semicircular gasket, and the surfaces of the positioning blocks are connected with an inner cavity of the clamping groove in a sliding mode. Particularly, when the sealing piece needs to be installed, the first semicircular gasket and the second semicircular gasket only need to be positioned and rotated into the limiting groove, rapid installation can be achieved, the complex operation that the whole pipe sleeve and the second connector need to be disassembled in the traditional sealing piece installation process is avoided, and the sealing piece is convenient to install and replace. And the installation time is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of low-pressure fluid transport pipe connectors, specifically a low-pressure fluid transport pipe connector. Background Technology

[0002] Low-pressure fluid transmission pipe fittings mainly include bayonet type, threaded type and welded type. Bayonet type fittings mainly rely on bayonet devices to connect pipe fittings and pipelines, which is convenient and quick to install, but the sealing performance of the sealing surface is poor and leakage is prone to occur, especially under conditions of vibration and impact. Threaded type fittings mainly rely on thread mating to achieve connection, and the sealing performance is relatively good, but threaded connections require special tools, the installation is more complicated, and the threads are prone to damage. Welded type fittings mainly connect pipe fittings and pipelines together by welding, and the sealing performance is the best, but high-temperature welding operations are required, causing environmental pollution, construction is complicated, and pipeline deformation and damage are easy to occur.

[0003] Chinese Patent Publication No. (CN218914039U) discloses a low-pressure fluid conveying pipe connector, including a pipe 1, a pipe 2, an interface 1, an interface 2, a sleeve, and a gasket. The feature is that: an interface 1 is mechanically rolled to the outer side of one end of the pipe 1, an interface 2 is mechanically rolled to the outer side of one end of the pipe 2, an annular groove is formed on one end face of the interface 2, one end of the gasket is fixed to one side of the annular groove, a threaded annular groove is formed on one end face of the interface 1, and a sleeve is provided on the outer side of the interface 2.

[0004] The aforementioned comparative documents typically use a circular gasket as a sealing element. During connection, firstly, interface two is connected to one end of interface one, then it is fixed horizontally. Next, the sleeve is screwed tightly to interface two. Finally, a wrench is used to tighten interface one and the sleeve to complete the connection. However, this traditional method has certain shortcomings, mainly in that: the gasket is installed in the inner cavity of the annular groove and is a complete circle. Once the gasket ages and needs to be replaced, the entire sleeve and interface two must be disassembled before the gasket can be replaced. The operation is complicated and time-consuming, which brings great inconvenience to maintenance work.

[0005] In view of this, the present invention solves the above-mentioned technical problems by proposing a low-pressure fluid transport pipe connector. Utility Model Content

[0006] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a low-pressure fluid conveying pipe connector. It designs a first semi-circular gasket and a second semi-circular gasket, and sets up a matching structure between a positioning block and a positioning hole. This enables convenient disassembly and replacement of the low-pressure fluid conveying pipe connector. Users do not need to disassemble the entire pipe sleeve and interface two; they only need to rotate interface two to leave operating space, then rotate the second semi-circular gasket to align the positioning block with the positioning hole, and then pull out the second semi-circular gasket. Repeating the above steps allows for the removal of the first semi-circular gasket, making gasket replacement simpler and faster.

[0007] This utility model provides the following technical solution: a low-pressure fluid conveying pipe connector, including interface one and interface two;

[0008] One end of the second interface is provided with a limiting groove, the inner cavity of the limiting groove is provided with a slot, one end of the second interface outside the limiting groove is provided with a positioning hole, a first semi-circular gasket and a second semi-circular gasket are slidably connected to the inner cavity of the limiting groove, and positioning blocks are fixed on the surfaces of the first semi-circular gasket and the second semi-circular gasket, and the surface of the positioning block is slidably connected to the inner cavity of the slot.

[0009] As a preferred technical solution of this utility model, the surface of the second interface is provided with a hexagonal groove, and the surface of the first interface is hexagonal.

[0010] As a preferred embodiment of this utility model, both the other end of the interface and one end of the inner cavity are fixed with sealing rings.

[0011] As a preferred embodiment of this utility model, the widths of the first semicircular gasket and the second semicircular gasket are equal to the width of the limiting groove.

[0012] In a preferred embodiment of this utility model, the inner diameter of the positioning hole is equal to the outer diameter of the positioning block, and both the positioning hole and the positioning block are semi-circular in shape.

[0013] As a preferred embodiment of this utility model, the first semicircular gasket and the second semicircular gasket are semicircular in shape.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model uses a first semi-circular gasket and a second semi-circular gasket to replace the traditional whole circular gasket, which significantly improves the ease of installation and replacement of the seal. Specifically, when the seal needs to be installed, the first semi-circular gasket and the second semi-circular gasket are positioned and rotated into the limiting groove respectively to achieve quick installation, avoiding the complicated operation of disassembling the entire pipe sleeve and interface 2 during the traditional seal installation process, thus saving installation time.

[0016] 2. This utility model also demonstrates significant advantages when replacing seals. When the gasket is aged or damaged and needs to be replaced, simply rotate the second interface to leave operating space, and then rotate the second semicircular gasket to easily pull the second semicircular gasket out of the limiting groove. Repeat the above steps to disassemble and replace the first semicircular gasket. This improvement effectively avoids the cumbersome disassembly process in the traditional replacement method and significantly reduces the difficulty and time consumption of operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the positioning hole structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning block structure of this utility model.

[0021] In the diagram: 1. Interface 1; 101. Interface 2; 2. Limiting groove; 201. Slot; 202. Positioning hole; 203. First semi-circular gasket; 204. Second semi-circular gasket; 205. Positioning block; 3. Hexagonal groove; 4. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1,

[0024] Please see Figure 1-4As shown, a low-pressure fluid conveying pipe connector includes an interface one (1) and an interface two (101). One end of the interface two (101) is provided with a limiting groove (2). The inner cavity of the limiting groove (2) is provided with a retaining groove (201). One end of the interface two (101) outside the limiting groove (2) is provided with a positioning hole (202). A first semi-circular gasket (203) and a second semi-circular gasket (204) are slidably connected to the inner cavity of the limiting groove (2). Positioning blocks (205) are fixed on the surfaces of the first semi-circular gasket (203) and the second semi-circular gasket (204). The surface of the positioning block (205) is slidably connected to the inner cavity of the retaining groove (201). A hexagonal groove (3) is provided on the surface of the interface two (101). By setting the hexagonal groove (3) The interface 1 (1) can be rotated by connecting a wrench to the hexagonal groove (3). The surface of the interface 1 (1) is hexagonal. The other end of the interface 1 (1) and the end of the inner cavity are both fixed with sealing rings (4). By setting the sealing rings 4, the sealing rings 4 can improve the sealing performance when connecting the connecting pipe to the interface 1 (1). The width of the first semicircular gasket (203) and the second semicircular gasket (204) is equal to the groove width of the limiting groove (2). The inner diameter of the positioning hole (202) is equal to the outer diameter of the positioning block (205). The shape of the positioning hole (202) and the positioning block (205) is semicircular. The shape of the first semicircular gasket (203) and the second semicircular gasket (204) is semicircular.

[0025] When it is necessary to install the first semicircular gasket 203 and the second semicircular gasket 204, firstly, align the positioning block 205 on the surface of the first semicircular gasket 203 with the inner cavity of the positioning hole 202, so that the first semicircular gasket 203 enters the inner cavity of the limiting groove 2 and the positioning block 205 enters the slot 201. Then, rotate the first semicircular gasket 203 so that the positioning block 205 on the surface of the first semicircular gasket 203 is misaligned with the positioning hole 202, leaving space for the installation of the second semicircular gasket 204. When installing the second semicircular gasket 204, align the positioning block 205 on the surface of the second semicircular gasket 204 with the inner cavity of the positioning hole 202. The positioning block 205 is aligned with the inner cavity of the positioning hole 202 and connected, so that the second semi-circular gasket 204 enters the inner cavity of the limiting groove 2 and the positioning block 205 enters the slot 201. Then, the first semi-circular gasket 203 and the second semi-circular gasket 204 are rotated at the same time, so that the positioning blocks 205 on the surfaces of the first semi-circular gasket 203 and the second semi-circular gasket 204 are offset from the positioning hole 202. At this time, the limiting groove 2 will limit the first semi-circular gasket 203 and the second semi-circular gasket 204, and the first semi-circular gasket 203 and the second semi-circular gasket 204 will form a complete circle to improve the sealing effect.

[0026] When it is necessary to disassemble the first semicircular gasket 203 and the second semicircular gasket 204, first rotate the second interface 101 to move it and leave room for operation. Then rotate the second semicircular gasket 204 so that the positioning block 205 on the surface of the second semicircular gasket 204 is aligned with the positioning hole 202. At this time, pulling the second semicircular gasket 204 will pull it out of the inner cavity of the limiting groove 2. Repeat the above steps to disassemble the first semicircular gasket 203. This achieves the effect of disassembling and replacing the first semicircular gasket 203 and the second semicircular gasket 204 without having to disassemble the second interface 101 of the tube sleeve box in sequence.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

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

Claims

1. A low pressure fluid transfer tube connection comprising: Interface one (1) and interface two (101); Characterized in that: one end of the interface two (101) is provided with a limiting slot (2), the inner cavity of the limiting slot (2) is provided with a clamping groove (201), one end of the interface two (101) outside the limiting slot (2) is provided with a positioning hole (202), the inner cavity of the limiting slot (2) is slidably connected with a first semicircular gasket (203) and a second semicircular gasket (204), the surfaces of the first semicircular gasket (203) and the second semicircular gasket (204) are fixedly connected with a positioning block (205), and the surface of the positioning block (205) is slidably connected with the inner cavity of the clamping groove (201).

2. A low pressure fluid conveying pipe coupling according to claim 1, characterised in that: The surface of the interface two (101) is provided with a hexagonal slot (3), and the surface of the interface one (1) is hexagonal.

3. A low pressure fluid conveying pipe coupling according to claim 1, wherein: The other end of the interface one (1) and one end of the inner cavity are both fixedly connected with a sealing ring (4).

4. A low pressure fluid conveying pipe coupling according to claim 1, wherein: The widths of the first semicircular gasket (203) and the second semicircular gasket (204) are equal to the slot width of the limiting slot (2).

5. A low pressure fluid conveying pipe coupling according to claim 1, wherein: The inner diameter of the positioning hole (202) is equal to the outer diameter of the positioning block (205), and the shapes of the positioning hole (202) and the positioning block (205) are both semicircular.

6. A low pressure fluid conveying pipe coupling according to claim 1, wherein: The shapes of the first semicircular gasket (203) and the second semicircular gasket (204) are semicircular.

Images