RTP glass fiber reinforced polyethylene composite pipe connecting device

Abstract

The utility model discloses an RTP glass fiber reinforced polyethylene composite pipe connecting device, which belongs to the technical field of polyethylene composite pipes, and comprises two composite pipe main bodies, two connecting hoops are sleeved on the outer surfaces of the two composite pipe main bodies, and two fastening sleeves are fixedly connected to the front side and the back side of each connecting hoop. The inner wall of each set of fastening sleeve is sleeved with a fastening screw, the bottom end of each fastening screw is in threaded connection with a fastening nut, the inner wall of each connecting hoop is provided with a clamping groove, the inner wall of each clamping groove is connected with a sealing rubber mat in a clamped mode, and each sealing rubber mat is located at the ends, close to each other, of the two composite pipe bodies. By arranging the connecting hoop, the sealing rubber mat, the annular groove, the arc-shaped fastening retaining ring, the fastening sleeve, the fastening screw and the fastening nut, the head end and the tail end of the composite pipe body can be in clamping sleeve tightening hoop sealing connection, and the connecting piece is convenient to connect and operate, simple in structure, free of welding and convenient to connect and operate polyethylene composite pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene composite pipes, in particular to a connecting device for an RTP glass fiber reinforced polyethylene composite pipe. Background Technique

[0002] The glass fiber reinforced polyethylene composite pipe is a three-layer composite structure pipe with a glass fiber reinforced thermoplastic prepreg tape as the reinforcement layer, polyethylene as the inner and outer layers, and is formed by continuous spiral winding and welding. The glass fiber reinforced polyethylene composite pipe can achieve pressure design by adjusting the number of prepreg tape layers to meet the requirements of high, medium and low pressure pipelines. In addition, the glass fiber tape reinforced polyethylene composite pipe has good corrosion resistance and flexibility, and can be supplied in coils with a length of several hundred meters or even several kilometers continuously, and is widely used in the industrial field and the oil and gas transportation field. When the glass fiber reinforced polyethylene composite pipe is used, a connecting device is often needed to connect the pipes.

[0003] Chinese Patent with the publication number of CN210291102U discloses a connecting device for a glass fiber tape reinforced polyethylene composite pipe, but there are still some deficiencies in the above patent during use. When connecting the head and tail ends of the polyethylene composite pipe, a welding device is still needed to perform electrofusion welding on the pipe, and the operation during connection is rather troublesome, which is not convenient for the quick connection work of the glass fiber reinforced polyethylene composite pipe. Therefore, those skilled in the art provide a connecting device for an RTP glass fiber reinforced polyethylene composite pipe to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connecting device for an RTP glass fiber reinforced polyethylene composite pipe to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] The connecting device for an RTP glass fiber reinforced polyethylene composite pipe includes two composite pipe bodies. Two connecting hoops are sleeved on the outer surfaces of the two composite pipe bodies. Two fastening sleeves are fixedly connected to the front and back of each connecting hoop. The inner walls of each group of fastening sleeves are sleeved with fastening screws. The bottom end of each fastening screw is threadedly connected with a fastening nut. A clamping groove is formed in the inner wall of each connecting hoop. A sealing gasket is clamped in the inner wall of each clamping groove. Each sealing gasket is located at one end where the two composite pipe bodies are close to each other. An annular groove is formed in the outer surface of each composite pipe body. Two arc-shaped fastening buckles are clamped in the inner wall of each annular groove. The outer surface of each arc-shaped fastening buckle is fixedly connected to the inner wall of the connecting hoop.

[0007] As a further scheme of the utility model: The two sealing gaskets form a circle.

[0008] As a further solution of the present utility model: a protective pad is fixedly connected to the inner wall of each of the connecting collars, the inner wall of each protective pad is in contact with the outer surface of the composite pipe body, and the protective pad is made of rubber material.

[0009] As a further solution of the present utility model: a model label is provided on the upper surface of the connecting collar, and the model label is located in the middle of the connecting collar.

[0010] As a further solution of the present utility model: two holding handles are fixedly connected to the outer surface of each of the connecting collars, and the holding handles are made of metal material.

[0011] As a further solution of the present utility model: a wrench groove is provided at the top end of each of the fastening screws.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] For this RTP glass fiber reinforced polyethylene composite pipe connecting device, by setting the connecting collar, sealing gasket, annular groove, arc-shaped fastening buckle, fastening sleeve, fastening screw and fastening nut, it can perform a clamping and tightening and clamping seal connection on the head and tail ends of the composite pipe body. This connecting piece is convenient to operate, has a simple structure, does not require welding, and is convenient for the connection operation of the polyethylene composite pipe. Description of the Drawings

[0014] Figure 1 It is an overall three-dimensional structure schematic diagram of the RTP glass fiber reinforced polyethylene composite pipe connecting device;

[0015] Figure 2 It is a top view of the connecting collar in the RTP glass fiber reinforced polyethylene composite pipe connecting device;

[0016] Figure 3 It is an internal dissection structure schematic diagram of the connecting collar in the RTP glass fiber reinforced polyethylene composite pipe connecting device;

[0017] Figure 4 It is a side view of the composite pipe body in the RTP glass fiber reinforced polyethylene composite pipe connecting device.

[0018] In the figure: 1, composite pipe body; 2, holding handle; 3, model label; 4, connecting collar; 5, fastening nut; 6, fastening sleeve; 7, fastening screw; 8, wrench groove; 9, protective pad; 10, arc-shaped fastening buckle; 11, clamping groove; 12, sealing gasket; 13, annular groove. Detailed Embodiment

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, an RTP glass fiber reinforced polyethylene composite pipe connection device includes two composite pipe bodies 1. Two connection collars 4 are sleeved on the outer surfaces of the two composite pipe bodies 1 together. Two fastening sleeves 6 are fixedly connected to the front and the back of each connection collar 4. The inner walls of each group of fastening sleeves 6 are sleeved with fastening screws 7. The bottom end of each fastening screw 7 is threadedly connected with a fastening nut 5. A clamping groove 11 is formed in the inner wall of each connection collar 4. A sealing gasket 12 is clamped in the inner wall of each clamping groove 11. Each sealing gasket 12 is located at one end where the two composite pipe bodies 1 are close to each other. An annular groove 13 is formed in the outer surface of each composite pipe body 1. Two arc-shaped fastening buckles 10 are clamped in the inner wall of each annular groove 13. The outer surface of each arc-shaped fastening buckle 10 is fixedly connected to the inner wall of the connection collar 4.

[0022] The two sealing gaskets 12 form a circle, which can realize the sealed connection of the two composite pipe bodies 1 and avoid the phenomenon of pipeline leakage. A protective pad 9 is fixedly connected to the inner wall of each connection collar 4. The inner wall of each protective pad 9 is in contact with the outer surface of the composite pipe body 1. The protective pad 9 is made of rubber material, which can provide external protection for the composite pipe body 1 during connection and facilitate the safe connection of the composite pipe body 1.

[0023] The upper surface of the coupling 4 is provided with a model label 3, which is located in the middle of the coupling 4 and can elaborate on the model of this connecting piece for the convenience of installers. Two holding handles 2 are fixedly connected to the outer surface of each coupling 4. The holding handles 2 are made of metal, which can enable the staff to hold this connecting piece more conveniently and facilitate the connection and installation of the composite pipe body 1. A wrench groove 8 is provided at the top of each fastening screw 7, which can enable the installer to fix the fastening screw 7 with a wrench and facilitate the tightening operation of the screw of the coupling 4.

[0024] The working principle of the present utility model is as follows: When connecting the polyethylene composite pipe, first pick up this connecting piece through the holding handle 2, put the coupling 4 on the head end of one of the composite pipe bodies 1, then align the tail end of the other composite pipe body 1 with the head end of the previous composite pipe body 1, and insert the tail end of the composite pipe body 1 into the inside of the coupling 4. At the same time, make the arc-shaped fastening buckle 10 snap into the annular groove 13. At this time, the head and tail ends of the two composite pipe bodies 1 contact the sealing gasket 12. Then tighten the fastening nut 5 through the cooperation with the fastening screw 7 to tighten the two couplings 4 and realize the butt joint connection and installation of the two composite pipe bodies 1.

[0025] The above-mentioned is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference numeral in the claims should not be regarded as limiting the claimed claim.

[0026] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A RTP glass fiber reinforced polyethylene composite pipe connection device, comprising two composite pipe bodies (1), characterized in that: The outer surfaces of the two composite pipe bodies (1) are jointly sleeved with two connecting hoops (4); the front side and the back side of each connecting hoop (4) are fixedly connected with two fastening sleeves (6); the inner wall of each group of the fastening sleeves (6) is sleeved with a fastening screw (7); the bottom end of each fastening screw (7) is threadedly connected with a fastening nut (5); the inner wall of each connecting hoop (4) is provided with a clamping groove (11); the inner wall of each clamping groove (11) is clamped with a sealing rubber pad (12); each sealing rubber pad (12) is located at one end of the two composite pipe bodies (1) close to each other; the outer surface of each composite pipe body (1) is provided with an annular groove (13); the inner wall of each annular groove (13) is clamped with two arc-shaped fastening buckle rings (10); the outer surface of each arc-shaped fastening buckle ring (10) is fixedly connected to the inner wall of the connecting hoop (4).

2. The RTP glass fiber reinforced polyethylene composite pipe connection device according to claim 1, characterized in that: The two sealing rubber pads (12) form a circle.

3. The RTP glass fiber reinforced polyethylene composite pipe connection device according to claim 1, characterized in that: The inner wall of each connecting hoop (4) is fixedly connected with a protective pad (9), the inner wall of each protective pad (9) is in contact with the outer surface of the composite pipe body (1), and the protective pad (9) is made of rubber.

4. The RTP glass fiber reinforced polyethylene composite pipe connection device according to claim 1, characterized in that: A model mark (3) is provided on the upper surface of the connecting hoop (4), and the model mark (3) is located in the middle of the connecting hoop (4).

5. The RTP glass fiber reinforced polyethylene composite pipe connection device according to claim 1, characterized in that: Two gripping handles (2) are fixedly connected to the outer surface of each connecting hoop (4), and the gripping handles (2) are made of metal.

6. The RTP glass fiber reinforced polyethylene composite pipe connection device according to claim 1, characterized in that: A wrench slot (8) is provided at the top of each of the fastening screws (7).

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