A clamp-type quick-connect pipe joint for pipe connection

Abstract

The present invention discloses a clamp-type quick-connect pipe joint for pipe connection, which belongs to the field of pipe joints, and includes a joint body composed of a plurality of connection units arranged in sequence in a circular array and an elastic telescopic unit for connecting two adjacent connection units. The connection units include a rigid arc-shaped connection block and a flexible arc-shaped airbag arranged in sequence from the outside to the inside. Both sides of the flexible arc-shaped airbag are fixed with arc-shaped sealing grooves connected to the flexible arc-shaped airbag, and a plurality of arc-shaped sealing grooves are connected in sequence to form an annular sealing groove; the pipes located at both ends of the joint are inserted from both ends of the joint body and abut against the annular sealing grooves on both sides. The present invention adopts the above-mentioned clamp-type quick-connect pipe joint for pipe connection. When in use, it is only necessary to pull open the joint body, insert the pipes at both ends, and then loosen the joint body, so that the pipes can be used to squeeze the flexible arc-shaped airbag to deform for sealing, which greatly simplifies the operation method and reduces the requirements for assembly accuracy.

Description

Technical Field

[0001] The invention relates to the field of pipeline joints, in particular to a clamp-type quick-connect pipe joint for pipeline connection. Background Art

[0002] Pipe fittings are components used to connect two pipes to ensure the tightness and stability of the pipe system. They come in a variety of designs and materials. Common types of pipe fittings include:

[0003] 1. Threaded joint: connects pipes by tightening internal and external threads. 2. Flange joint: uses flanges and bolts to connect pipes, suitable for applications with larger diameters and higher pressures. 3. Welded joint: connects pipes permanently by welding, suitable for situations where high-strength connections are required. 4. Compression fitting: uses the elastic deformation of the compression fitting to clamp the pipe, which is easy to install and is often used for instrument pipes. 5. Adhesive joint: uses special glue to bond plastic pipes, suitable for non-high-pressure systems such as water supply.

[0004] The above-mentioned pipeline connection method is relatively complicated, has low connection efficiency, and has high requirements for assembly accuracy, which can easily lead to assembly failure due to assembly errors. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a clamp-type quick-connect pipe joint for pipe connection. When in use, it is only necessary to pull open the joint body, insert the pipes at both ends and then loosen the joint body, and the flexible arc-shaped airbag can be squeezed by the pipe to deform for sealing, which greatly simplifies the operation method and reduces the requirements for assembly accuracy.

[0006] To achieve the above-mentioned object, the present invention provides a clamp-type quick-connect pipe joint for pipe connection, comprising a joint body composed of a plurality of connection units sequentially arranged in a circular array and an elastic telescopic unit for connecting two adjacent connection units, wherein the connection unit comprises a rigid arc-shaped connection block and a flexible arc-shaped airbag sequentially arranged from the outside to the inside, arc-shaped sealing grooves connected to the flexible arc-shaped airbag are fixed on both sides of the flexible arc-shaped airbag, and the plurality of arc-shaped sealing grooves are sequentially connected to form an annular sealing groove;

[0007] The pipes at both ends of the joint are inserted through the two ends of the joint body and abut against the annular sealing grooves on both sides.

[0008] Preferably, the elastic telescopic unit includes a rotating shaft rotatably arranged inside the rigid arc-shaped connecting block via a reset torsion spring and an elastic steel belt wound around the rotating shaft, and the elastic steel belt is fixed to form a ring body after passing through the rotating shafts rotatably arranged inside the plurality of connecting units in sequence;

[0009] The elastic steel belt enters from the winding end of the rotating shaft and then outputs from the unwinding end of the rotating shaft.

[0010] Preferably, insertion and exit holes are provided on the rigid arc-shaped connecting block at positions corresponding to the elastic steel belts.

[0011] Preferably, the inner diameter of the annular sealing groove is smaller than the outer diameter of the connecting pipe;

[0012] The annular sealing groove is made of rubber.

[0013] Preferably, the rigid arc-shaped connecting block is fixedly connected to the outer circumferential side of the annular sealing groove via waterproof glue.

[0014] The present invention has the following beneficial effects:

[0015] When using, you only need to pull open the joint body, insert the pipes at both ends and then loosen the joint body. The flexible arc-shaped airbag can be deformed by squeezing the pipe for sealing, which greatly simplifies the operation method and reduces the requirements for assembly accuracy.

[0016] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a clamp-type quick-connect pipe joint for pipe connection of the present invention in a closed state of the joint body;

[0018] Figure 2 It is a structural schematic diagram of a clamp-type quick-connect pipe joint for pipe connection of the present invention when the joint body is in an open state;

[0019] Figure 3 The present invention is a schematic diagram of the structure of a connection unit of a clamp-type quick-connect pipe joint for pipe connection.

[0020] Among them: 1. elastic steel belt; 2. rigid arc-shaped connecting block; 3. rotating shaft; 4. arc-shaped sealing groove; 5. flexible arc-shaped airbag; 6. insertion and exit holes. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0022] It should be noted that the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or devices.

[0023] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1-Figure 3 As shown, a clamp-type quick-connect pipe joint for pipe connection includes a joint body composed of a plurality of connection units arranged in sequence in a circular array and an elastic telescopic unit for connecting two adjacent connection units. The connection unit includes a rigid arc-shaped connection block 2 and a flexible arc-shaped airbag 5 arranged in sequence from the outside to the inside. Arc-shaped sealing grooves 4 connected to the flexible arc-shaped airbag 5 are fixed on both sides of the flexible arc-shaped airbag 5. Multiple arc-shaped sealing grooves 4 are connected in sequence to form an annular sealing groove; the pipes located at both ends of the joint are inserted through the two ends of the joint body and abut against the annular sealing grooves on both sides.

[0027] The elastic telescopic unit includes a rotating shaft 3 which is rotatably arranged inside the rigid arc-shaped connecting block 2 via a reset torsion spring and an elastic steel belt 1 which is wound around the rotating shaft 3. The elastic steel belt 1 successively passes through the rotating shafts 3 which are rotatably arranged inside the multiple connecting units and is fixed to form a ring body. The elastic steel belt 1 enters from the winding end of the rotating shaft 3 and is then output from the unwinding end of the rotating shaft 3. An entry and exit hole 6 is provided on the rigid arc-shaped connecting block 2 and corresponds to the position of the elastic steel belt 1.

[0028] The inner diameter of the annular sealing groove is smaller than the outer diameter of the connecting pipe. The annular sealing groove is made of rubber, and the ring diameter of the annular sealing groove is larger than the wall thickness of the pipe, which is used to reduce the requirements for assembly accuracy and facilitate alignment.

[0029] The rigid arc-shaped connecting block 2 is fixedly connected to the outer circumference side of the annular sealing groove via waterproof glue.

[0030] In this embodiment, a hand-holding groove is provided on the outer side of the rigid arc-shaped connecting block 2 to facilitate the staff to pull open the pipeline body.

[0031] Instructions for use: The working unit pulls the two symmetrical rigid arc-shaped connecting blocks 2 outward, transmits the pulling force through the elastic steel belt 1, and the rotating shaft 3 performs the unwinding action. The elastic steel belt 1 is released, and the inner diameter becomes larger until the annular sealing groove is aligned with the pipe wall of the pipe, and the pipe is inserted inward until the end face of the pipe contacts the annular sealing groove. The staff holds the pipe to prevent axial displacement of the pipe while loosening the rigid arc-shaped connecting block 2. Under the action of the reset torsion spring, the elastic steel belt 1 is tightened, and the rigid arc-shaped connecting block 2 is reset, squeezing the flexible arc-shaped airbags 5 inward, so that the adjacent flexible arc-shaped airbags 5 and the inner wall of the arc-shaped sealing groove 4 connected to the flexible arc-shaped airbags 5 are sealed with the side wall of the pipe.

[0032] Therefore, the present invention adopts the above-mentioned clamp-type quick-connect pipe joint for pipe connection. When in use, it is only necessary to pull open the joint body, insert the pipes at both ends and then loosen the joint body, so that the flexible arc-shaped airbag can be squeezed and deformed by the pipe for sealing, which greatly simplifies the operation method and reduces the requirements for assembly accuracy.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A clamp-type quick-connect pipe joint for pipe connection, characterized in that: The joint body comprises a plurality of connection units sequentially arranged in a circular array and an elastic expansion unit for connecting two adjacent connection units, wherein the connection unit comprises a rigid arc-shaped connection block and a flexible arc-shaped airbag sequentially arranged from the outside to the inside, arc-shaped sealing grooves connected to the flexible arc-shaped airbag are fixed on both sides of the flexible arc-shaped airbag, and the plurality of arc-shaped sealing grooves are sequentially connected to form an annular sealing groove; The pipes at both ends of the joint are inserted through the two ends of the joint body and abut against the annular sealing grooves on both sides; The elastic telescopic unit includes a rotating shaft rotatably arranged inside the rigid arc-shaped connecting block via a reset torsion spring and an elastic steel belt wound around the rotating shaft. The elastic steel belt sequentially passes around the rotating shafts rotatably arranged inside the multiple connecting units and is fixed to form a ring body. The elastic steel belt enters from the reeling end of the rotating shaft and then exits from the unreeling end of the rotating shaft; Usage: The staff pulls the two symmetrical rigid arc-shaped connecting blocks outward, transmits the pulling force through the elastic steel belt, and the rotating shaft performs the unwinding action. The elastic steel belt is released, and the inner diameter becomes larger until the annular sealing groove is aligned with the pipe wall of the pipeline, and the pipeline is inserted inward until the end face of the pipeline contacts the annular sealing groove. The staff holds the pipeline to prevent the axial displacement of the pipeline while loosening the rigid arc-shaped connecting block. Under the action of the reset torsion spring, the elastic steel belt is tightened, the rigid arc-shaped connecting block is reset, and the flexible arc-shaped airbag is squeezed inward, so that the adjacent flexible arc-shaped airbags and the inner wall of the arc-shaped sealing groove connected to the flexible arc-shaped airbags and the side wall of the pipeline are sealed; An entry and exit hole is provided on the rigid arc-shaped connecting block and at a position corresponding to the elastic steel belt; The inner diameter of the annular sealing groove is smaller than the outer diameter of the pipe to be connected; The annular sealing groove is made of rubber.

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