Novel JDG pipe fitting connecting structure

Abstract

The utility model discloses a novel JDG pipe fitting connecting structure which comprises a guide pipe and a connecting piece, the connecting piece comprises a connecting inner pipe and a fastening outer pipe, the guide pipe is connected with the connecting inner pipe, the fastening outer pipe is arranged on the connecting inner pipe in a sleeved mode, the fastening outer pipe is used for fixing the connecting inner pipe and the fastening outer pipe, the fastening outer pipe is arranged on the connecting inner pipe, and the connecting inner pipe is connected with the connecting inner pipe. After the guide pipe is connected with the connecting inner pipe, the connecting inner pipe is tightened through the fastening outer pipe to fix the guide pipe, and therefore the connecting firmness of the guide pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of JDG pipes, and in particular relates to a novel JDG pipe fitting connection structure. Background Art

[0002] JDG pipe is a new type of conduit for electrical line protection. In construction projects, JDG pipe is a replacement product for various traditional wire conduits such as PVC pipes and SC pipes. It is a breakthrough innovation in the field of building electrical engineering using new materials and new technologies. JDG pipe is composed of galvanized steel pipe and thin-walled steel pipe. It does not require cross-grounding, welding and threading, and overcomes the shortcomings of ordinary metal conduits, such as complex construction and large construction losses. At the same time, it also solves the problems of poor fire resistance and difficulty in grounding of PVC pipes.

[0003] In the prior art, the connection method of the JDG pipe adopts a screw-tight connection. When two JDG pipes are connected, a connecting pipe is used to connect the two JDG pipes. Threaded holes are opened at both ends of the connecting pipe, and screws are installed in the threaded holes through nuts. When fixing, the nuts are broken by tightening the screws, and the screws are against the JDG pipes to fix the JDG pipes and achieve connection.

[0004] However, the above technology has the following shortcomings: due to the different materials of the screws, after the screws are installed in the threaded holes, the nut cannot be twisted off due to thread slippage, or the screws are not tightened, resulting in a loose connection of the JDG pipe and failure to meet the tightening requirements. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a novel JDG pipe fitting connection structure. A fastening outer tube is provided on the connecting inner tube. After the catheter is connected to the connecting inner tube, the connecting inner tube is tightened by the fastening outer tube to fix the catheter, thereby increasing the firmness of the catheter connection.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A novel JDG pipe connection structure includes a conduit;

[0008] The invention is characterized in that: it also includes a connecting piece, the connecting piece includes a connecting inner tube and a fastening outer tube, the catheter is connected to the connecting inner tube, the fastening outer tube is sleeved on the connecting inner tube, the fastening outer tube is used to fix the connecting inner tube and the fastening outer tube, and the fastening outer tube is provided on the connecting inner tube. After the catheter is connected to the connecting inner tube, the connecting inner tube is tightened by the fastening outer tube to fix the catheter, thereby increasing the firmness of the catheter connection.

[0009] Furthermore, the connecting inner tube includes a tube body and a fixing part, the fixing part is arranged at the end of the tube body, the fixing part is provided with an external thread, the fastening outer tube is provided with an internal thread, the fastening outer tube is sleeved on the fixing part through a threaded connection, and the fixing part is used to fix the catheter.

[0010] Furthermore, the fixing part includes a first half ring and a second half ring, and an opening is formed between the first half ring and the second half ring. When the outer tube is tightened and threadedly connected to the fixing part, the outer tube squeezes the first half ring and the second half ring to close the opening, so that the first half ring and the second half ring fix the catheter.

[0011] Furthermore, the tube body and the fixing portion are an integral structure.

[0012] Furthermore, the connecting inner tube is provided with a connecting hole, and the two conduits are inserted into the connecting hole to realize the connection of the two conduits.

[0013] Furthermore, two fastening outer tubes are provided, the fixing parts are provided at two ends of the tube body, and the two fastening outer tubes are sleeved on the two fixing parts.

[0014] Furthermore, a grounding piece is fixedly provided on the inner side wall of the fastening outer tube, and a pointed head is provided at one end of the grounding piece close to the center of the fastening outer tube.

[0015] Furthermore, the conduit is a galvanized steel pipe.

[0016] Furthermore, a fastening seat is provided for fastening the outer tube, and the fastening seat is provided with a protrusion, in which a fastening rod is detachably installed, and the fastening rod facilitates the threaded connection between the fastening outer tube and the connecting inner tube.

[0017] Furthermore, the raised portion is provided with a mounting hole, the fastening rod is inserted into the mounting hole, the mounting hole is provided with a limiting groove, the fastening rod is provided with a limiting block, and the limiting block is limited in the limiting groove.

[0018] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0019] The connecting piece in the utility model comprises a connecting inner tube and a fastening outer tube. The catheter is connected to the connecting inner tube. The fastening outer tube is sleeved on the connecting inner tube. The fastening outer tube is used to fix the connecting inner tube and the fastening outer tube. The fastening outer tube is arranged on the connecting inner tube. After the catheter is connected to the connecting inner tube, the connecting inner tube is tightened by the fastening outer tube to fix the catheter, thereby increasing the firmness of the catheter connection.

[0020] The fixing part in the utility model comprises a first half ring and a second half ring, an opening is formed between the first half ring and the second half ring, and a threaded connection is formed between the outer tube and the fixing part, and the outer tube is tightened to squeeze the first half ring and the second half ring to close the opening, thereby achieving fixation of the catheter by the first half ring and the second half ring. Through the design of the above structure, the connecting inner tube has a contraction function, and after the outer tube is tightened, the fixing part is contracted to achieve fixation. Through the design of the first half ring and the second half ring, the contact area with the catheter is increased, thereby increasing the firmness of the fixation.

[0021] In the utility model, a grounding piece is fixedly provided on the inner wall of the fastening outer tube, and a pointed head is provided on one end of the grounding piece close to the center of the fastening outer tube. When the fastening outer tube is tightened, the internal pointed head breaks the galvanized layer of the conduit, thereby achieving a grounding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 This is a structural schematic diagram of a new JDG pipe fitting connection structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the connecting member in the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of connecting the inner tube and the fastening outer tube in the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the connected inner tube in the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of fastening the outer tube in the utility model;

[0028] Figure 6 It is a structural schematic diagram of the grounding member in the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of fastening the outer tube in the second embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the fastening seat in the second embodiment of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the fastening rod in the second embodiment of the utility model.

[0032] In the figure: 1-conduit; 2-connecting inner tube; 3-fastening outer tube; 4-tube body; 5-fixing part; 6-external thread; 7-internal thread; 8-first half ring; 9-second half ring; 10-opening; 11-connecting hole; 12-grounding piece; 13-pointed head; 14-fastening seat; 15-protrusion; 16-fastening rod; 17-mounting hole; 18-limiting groove; 19-limiting block. DETAILED DESCRIPTION

[0033] Embodiment 1

[0034] like Figures 1 to 6 As shown, a new JDG pipe fitting connection structure of the utility model comprises a conduit 1 and a connector, the connector comprises a connecting inner tube 2 and a fastening outer tube 3, the conduit 1 is connected to the connecting inner tube 2, specifically, the connecting inner tube 2 is provided with a connecting hole 11, the connecting inner tube 2 is a hollow cylindrical tube, two conduits 1 are inserted into the connecting hole 11 to realize the connection of the two conduits 1, the fastening outer tube 3 is sleeved on the connecting inner tube 2, the fastening outer tube 3 is used to fix the connecting inner tube 2 and the fastening outer tube 3, the fastening outer tube 3 is provided on the connecting inner tube 2, after the conduit 1 is connected to the connecting inner tube 2, the connecting inner tube 2 is tightened by the fastening outer tube 3 to fix the conduit 1, thereby increasing the firmness of the connection of the conduit 1.

[0035] In this embodiment, the conduit 1 is a galvanized steel pipe.

[0036] The connecting inner tube 2 includes a tube body 4 and a fixing part 5. The tube body 4 and the fixing part 5 are an integral structure, which increases the structural strength of the connecting inner tube 2, is not easy to be damaged, and increases the service life. The fixing part 5 is arranged at both ends of the tube body 4, and the fixing part 5 is provided with an external thread 6. The fastening outer tube 3 is provided with an internal thread 7. The fastening outer tube 3 is provided with two, and the fastening outer tube 3 is sleeved on the fixing part 5 through a threaded connection, and the catheter 1 is fixed by the fixing part 5.

[0037] The fixing portion 5 includes a first half ring 8 and a second half ring 9, and an opening 10 is formed between the first half ring 8 and the second half ring 9. When the outer tube 3 is threadedly connected to the fixing portion 5, the outer tube 3 is tightened and the first half ring 8 and the second half ring 9 are squeezed by the outer tube 3 to close the opening 10. After the opening 10 is closed, the first half ring 8 and the second half ring 9 contract, so that the first half ring 8 and the second half ring 9 fix the catheter 1. Through the design of the first half ring 8 and the second half ring 9, the contact area with the catheter 1 is increased, thereby increasing the firmness of the fixation.

[0038] A grounding piece 12 is fixedly provided on the inner wall of the fastening outer tube 3. A pointed head 13 is provided at one end of the grounding piece 12 close to the center of the fastening outer tube 3. When the fastening outer tube 3 is tightened, the internal pointed head 13 breaks the galvanized layer of the conduit 1, thereby achieving a grounding effect.

[0039] When the utility model is used, firstly, two conduits 1 to be connected are inserted into the connecting holes 11 of the connecting inner tube 2, and then the outer tube 3 is tightened and fastened. In the process of tightening the outer tube 3, the first half ring 8 and the second half ring 9 are squeezed to close the opening 10. After the opening 10 is closed, the first half ring 8 and the second half ring 9 are contracted. Through this design, the connecting inner tube 2 has a contraction function, thereby achieving the fixation of the conduit 1. When the outer tube 3 is tightened and fastened to gradually contract the first half ring 8 and the second half ring 9, the grounding piece 12 inside the outer tube 3 is gradually against the conduit 1, and the galvanized layer of the conduit 1 is destroyed by the pointed head 13, thereby achieving the grounding effect. Through the design of the above structure, the connecting piece has the function of tightening and shrinking left and right, and the conduit 1 is fixed by its own tightening and shrinking, and screws are not needed for fixing, and it has a better fixing effect. The pointed head 13 inside the outer tube 3 can better destroy the galvanized layer, so that the grounding effect is better.

[0040] Embodiment 2

[0041] like Figures 7 to 9 As shown, based on the structure of the first embodiment, the second embodiment makes another design for the structure of the fastening outer tube 3, and the fastening outer tube 3 is further provided with a fastening seat 14, which is fixed on the fastening outer tube 3, and a side where the fastening seat 14 is fixed to the fastening outer tube 3 is provided with an arc groove matching the fastening outer tube 3. To make the overall structure more beautiful, the fastening seat 14 is provided with a protrusion 15, and a fastening rod 16 is detachably installed in the protrusion 15. When the fastening outer tube 3 is threadedly connected with the connecting inner tube 2, the fastening rod 16 is provided, and the fastening outer tube 3 is tightened by the fastening rod 16, which is more convenient and labor-saving. At the same time, the detachable connection of the fastening rod 16 allows the fastening outer tube 3 to be removed after tightening, thereby not affecting the beauty of the fastening outer tube 3.

[0042] The raised portion 15 is provided with a mounting hole 17, and the fastening rod 16 is inserted into the mounting hole 17. The structure is simple and easy to install and disassemble. The mounting hole 17 is provided with a limiting groove 18, and the fastening rod 16 is provided with a limiting block 19. The limiting block 19 is limited in the limiting groove 18. After the fastening rod 16 is inserted into the mounting hole 17, the limiting block 19 is limited in the limiting groove 18 by rotating the fastening rod 16. The fastening rod 16 is limited by the design of the limiting block 19 and the limiting groove 18 to prevent the fastening rod 16 from falling off when tightening the outer tube 3.

[0043] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A new JDG pipe connection structure, comprising a conduit; characterized in that: It also includes a connecting piece, which includes a connecting inner tube and a fastening outer tube, the catheter is connected to the connecting inner tube, the fastening outer tube is sleeved on the connecting inner tube, and the fastening outer tube is used for fixing the connecting inner tube to the fastening outer tube; the connecting inner tube includes a tube body and a fixing part, the fixing part is provided at the end of the tube body, the fixing part is provided with an external thread, and the fastening outer tube is provided with an internal thread, the fastening outer tube is sleeved on the fixing part through a threaded connection, and the fixing part is used to fix the catheter; the fixing part includes a first half ring and a second half ring, an opening is formed between the first half ring and the second half ring, and when the fastening outer tube is threadedly connected to the fixing part, the fastening outer tube squeezes the first half ring and the second half ring to close the opening, so that the first half ring and the second half ring fix the catheter.

2. A new JDG pipe connection structure according to claim 1, characterized in that: The tube body and the fixing portion are in an integral structure.

3. A novel JDG pipe connection structure according to claim 1, characterized in that: The connecting inner tube is provided with a connecting hole, and the two conduits are inserted into the connecting hole to realize the connection of the two conduits.

4. A novel JDG pipe connection structure according to claim 1, characterized in that: The fastening outer tubes are provided with two, the fixing parts are arranged at two ends of the tube body, and the two fastening outer tubes are sleeved on the two fixing parts.

5. The novel JDG pipe connection structure according to claim 1 is characterized in that: A grounding piece is fixedly provided on the inner side wall of the fastening outer tube, and a pointed head is provided on one end of the grounding piece close to the center of the fastening outer tube.

6. A novel JDG pipe connection structure according to claim 1, characterized in that: The conduit is a galvanized steel pipe.

7. A novel JDG pipe connection structure according to claim 1, characterized in that: The fastening outer tube is also provided with a fastening seat, and the fastening seat is provided with a protrusion, in which a fastening rod is detachably installed, and the fastening outer tube is conveniently threadedly connected to the connecting inner tube through the fastening rod.

8. A new JDG pipe connection structure according to claim 7, characterized in that: The raised portion is provided with a mounting hole, the fastening rod is inserted into the mounting hole, the mounting hole is provided with a limiting groove, the fastening rod is provided with a limiting block, and the limiting block is limited in the limiting groove.

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