High-pressure-resistant glass fiber reinforced plastic butt joint pipe with internal threads

Abstract

The utility model relates to the technical field of engineering equipment, and discloses a high-pressure-resistant glass fiber reinforced plastic butt-joint pipe with internal threads, which comprises a butt-joint pipe, the front end of the butt-joint pipe is fixedly connected with an installation column, the front end of the installation column is fixedly connected with a fixing ring, the inside of the fixing ring is fixedly connected with a buckle mechanism, and the buckle mechanism is fixedly connected with the butt-joint pipe. An insertion pipe is slidably connected to the interior of the fixed ring, a movable ring is slidably connected to the exterior of the insertion pipe, and a threaded head is fixedly connected to the front end of the insertion pipe. According to the butt joint pipe, through the structures such as the buckle mechanism, the fixed ring, the movable ring and the insertion pipe, when the thread head enters the butt joint pipe, the buckle mechanism clamps and fixes the thread head, so that the shaking of the insertion pipe entering the butt joint pipe is reduced, the correct position of the insertion pipe in the butt joint pipe is ensured, and the position deviation during screwing is reduced; and performance reduction caused by position deviation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering equipment, in particular to a high-pressure resistant glass fiber reinforced plastic butt pipe with internal threads. Background Art

[0002] The fiberglass butt-jointed pipe comprises a first pipe, a first connecting block and a corrosion-resistant layer. One end of the first pipe is connected to the second pipe. One side of the first connecting block is fixed to the second pipe. The first connecting block is internally threadedly connected to a threaded rod. The first pipe is internally connected to a push block on one side close to the threaded rod via a limit block. This design can improve the stability and service life of the pipe.

[0003] After searching, a Chinese patent discloses an assembled energy-saving and environmentally friendly FRP insulation pipe (Announcement No. CN215258566U). The patented technology includes an aerogel felt insulation layer on the outer wall of the FRP pipe body, an outer insulation layer on the outer wall of the aerogel felt insulation layer, a buffer-type protective sleeve on the outer wall of the outer insulation layer, a plug-in pipe connected to the left end of the FRP pipe body, a plug-in interface on the right end of the FRP pipe body, two installation grooves on the plug-in pipe, a sealing ring installed in the installation groove, a sealing pad on the outer wall of the plug-in pipe, and a buffer-type protective sleeve. A fixing plate is installed on the left side of the sheath, and a connecting plate is installed on the right side of the buffer-type protective sheath. A number of connecting threaded holes are evenly opened on the connecting plate, and a number of through-hole grooves are opened on the fixing plate, and the hole grooves correspond to the connecting threaded holes. The utility model can realize quick connection, is not prone to leakage, and can improve the overall stability; it saves time, and at the same time has high overall strength and is easy to operate. However, under the existing technology, the plug-in tube cannot be positioned, and the plug-in tube will be offset when it rotates inside the tube, resulting in a problem of loose connection between the plug-in tube and the connecting tube. Utility Model Content

[0004] The utility model aims to improve the prior art in which the insertion tube is deviated when it rotates inside the tube, resulting in a loose connection between the insertion tube and the tube, and proposes a high-pressure resistant glass fiber reinforced plastic tube with internal threads.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-pressure resistant fiberglass butt joint tube with internal threads, comprising a butt joint tube, the front end of the butt joint tube is fixedly connected to a mounting column, the front end of the mounting column is fixedly connected to a fixing ring, the interior of the fixing ring is fixedly connected to a snap mechanism, the interior of the fixing ring is slidably connected to an insertion tube, the exterior of the insertion tube is slidably connected to a movable ring, and the front end of the insertion tube is fixedly connected to a threaded head.

[0006] As a further description of the above technical solution:

[0007] The buckle mechanism includes two spring shells, the inner part of the spring shell is slidably connected to a limiting ring, one end of the limiting ring away from the fixing ring is fixedly connected to a spring, and one end of the limiting ring away from the spring is fixedly connected to a clamping column.

[0008] As a further description of the above technical solution:

[0009] One end of the limiting ring away from the spring is fixedly connected with a rotating ring, and the outside of the rotating ring is fixedly connected with a pulling head.

[0010] As a further description of the above technical solution:

[0011] A slide groove is provided inside the spring shell, and the outside of the pull head is slidably connected to the inside of the slide groove.

[0012] As a further description of the above technical solution:

[0013] The outer portion of the movable ring is slidably connected to the inner portion of the fixed ring, and the outer portion of the threaded head is slidably connected to the inner portion of the fixed ring.

[0014] As a further description of the above technical solution:

[0015] The outer portion of the clamping column is slidably connected to the inner portion of the fixing ring.

[0016] As a further description of the above technical solution:

[0017] The external thread of the threaded head is connected to the inside of the butt joint pipe, and the outside of the butt joint pipe is covered with a rubber sleeve.

[0018] As a further description of the above technical solution:

[0019] A thread groove is provided inside the butt joint pipe.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, through the structures such as the snap mechanism, the fixed ring, the movable ring, and the insertion tube, when the insertion tube enters the interior of the butt joint tube, the snap mechanism clamps and fixes the insertion tube, thereby reducing the shaking of the insertion tube when entering the interior of the butt joint tube, ensuring that the insertion tube slides into the correct position inside the butt joint tube, reducing the position deviation that occurs when twisting, and avoiding performance degradation caused by position deviation.

[0022] In the utility model, by using structures such as the butt joint tube and the thread groove, when the insertion tube enters the inside of the butt joint tube, there is no need to cut the threads inside the butt joint tube, and the insertion tube can be directly screwed into the inside of the butt joint tube, thereby reducing additional cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a high-pressure-resistant fiberglass butt pipe with internal threads proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of a butt-joint pipe in a glass fiber reinforced plastic butt-joint pipe with internal threads and high pressure resistance proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of a fixing ring in a glass fiber reinforced plastic butt pipe with internal threads and high pressure resistance proposed by the utility model;

[0026] Figure 4 This is a cross-sectional view of a fixing ring in a high-pressure-resistant fiberglass butt pipe with internal threads proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of a clamping column in a glass fiber reinforced plastic butt pipe with internal threads and high pressure resistance proposed by the utility model;

[0028] Figure 6 The utility model is a schematic diagram of a spring shell in a glass fiber reinforced plastic butt pipe with internal threads and high pressure resistance.

[0029] Legend:

[0030] 1. Butt joint; 2. Mounting column; 3. Fixing ring; 4. Buckle mechanism; 401. Spring housing; 402. Limiting ring; 403. Spring; 404. Slide groove; 405. Clamping column; 406. Rotating ring; 407. Pull head; 5. Insertion tube; 6. Movable ring; 7. Threaded head; 8. Threaded groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3The utility model provides an embodiment: a glass fiber reinforced plastic butt joint tube with internal thread and high pressure resistance, comprising a butt joint tube 1, a mounting column 2 is fixedly connected to the front end of the butt joint tube 1, a fixing ring 3 is fixedly connected to the front end of the mounting column 2, the fixing ring 3 is fixed to the butt joint tube 1 through the mounting column 2 to prevent the fixing ring 3 from being separated from the outside of the butt joint tube 1, a buckle mechanism 4 is fixedly connected to the inside of the fixing ring 3, the buckle mechanism 4 clamps and positions the insertion tube 5 to prevent the insertion tube 5 from entering the inside of the butt joint tube 1 and shifting its position, resulting in a loose connection, an insertion tube 5 is slidably connected to the inside of the fixing ring 3, a movable ring 6 is slidably connected to the outside of the insertion tube 5, a threaded head 7 is fixedly connected to the front end of the insertion tube 5, when the threaded head 7 enters the inside of the fixing ring 3, the front end of the threaded head 7 is an inclined surface, so that the threaded head 7 pushes the clamping column 405 to the left and right sides, When the threaded head 7 enters the docking tube 1, the clamping column 405 clamps the threaded head 7 in place due to the thrust of the spring 403, and the outer portion of the movable ring 6 is slidably connected to the inner portion of the fixed ring 3. The outer portion of the threaded head 7 is slidably connected to the inner portion of the fixed ring 3. When the clamping column 405 clamps the threaded head 7, the movable ring 6 on the rear side of the threaded head 7 is pushed forward, so that the movable ring 6 enters the inner portion of the fixed ring 3. The front end of the movable ring 6 is abutted against the rear side of the threaded head 7. The insertion tube 5 is twisted and the insertion tube 5 is pulled to drive the fixed ring 3 to move backward. Because the front and rear sides of the fixed ring 3 are both inclined surfaces, the fixed ring 3 pushes the clamping column 405 to the left and right, thereby removing the insertion tube 5. The outer thread of the threaded head 7 is connected to the inner portion of the docking tube 1. The outer portion of the docking tube 1 is provided with a rubber sleeve, and the inner portion of the docking tube 1 is provided with a threaded groove 8.

[0033] Reference Figure 4 - Figure 6 The buckle mechanism 4 includes two spring shells 401, the inner sliding connection of the spring shell 401 is a limit ring 402, the end of the limit ring 402 away from the fixing ring 3 is fixedly connected to the spring 403, the end of the limit ring 402 away from the spring 403 is fixedly connected to the clamping column 405, so that the spring 403 pushes the clamping column 405 so that the clamping column 405 clamps the insertion tube 5, the end of the limit ring 402 away from the spring 403 is fixedly connected to the rotating ring 406, and the outer fixed connection of the rotating ring 406 is a pull head 407, so that the pull head 407 drives the internal clamping column 405 to move , so that pulling the pull head 407 can pull the clamping column 405 into the spring shell 401, so that the clamping column 405 is separated from the clamping of the insertion tube 5. A slide groove 404 is provided inside the spring shell 401, and the outside of the pull head 407 is slidably connected to the inside of the slide groove 404, so that the slide groove 404 can limit the pull head 407, so that the pull head 407 slides from the long groove inside the slide groove 404 to the annular groove, so that the pull head 407 is engaged in the annular groove, so that the pull head 407 will not be driven by the spring 403 to move outward, and the outside of the clamping column 405 is slidably connected to the inside of the fixing ring 3.

[0034] Working principle: When the threaded head 7 slides into the interior of the fixing ring 3, the front end of the threaded head 7 is an inclined surface, so that the threaded head 7 pushes the clamping column 405 to the left and right sides. When the threaded head 7 slides into the docking tube 1, the clamping column 405 clamps the insertion tube 5 in place due to the thrust of the spring 403. At this time, the insertion tube 5 is twisted to connect and fix the docking tube 1. Conversely, the insertion tube 5 is twisted to allow the insertion tube 5 to move toward the rear end, and the lifting of the insertion tube 5 drives the fixing ring 3 to move backward. Because the front and rear sides of the fixing ring 3 are both inclined surfaces, the fixing ring 3 pushes the clamping column 405 to the left and right, thereby taking out the insertion tube 5, ensuring that the insertion tube 5 is in the correct position inside the docking tube 1, reducing position deviation during twisting, and avoiding performance degradation due to position deviation. A threaded groove 8 is provided inside the docking tube 1, and the thread can be used directly without cutting the inside of the docking tube 1.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure resistant fiberglass butt-joint pipe with internal threads, comprising a butt-joint pipe (1), characterized in that: The front end of the butt joint tube (1) is fixedly connected to a mounting column (2), the front end of the mounting column (2) is fixedly connected to a fixing ring (3), the interior of the fixing ring (3) is fixedly connected to a snap mechanism (4), the interior of the fixing ring (3) is slidably connected to an insertion tube (5), the exterior of the insertion tube (5) is slidably connected to a movable ring (6), and the front end of the insertion tube (5) is fixedly connected to a threaded head (7).

2. The high-pressure resistant fiberglass butt pipe with internal threads according to claim 1, characterized in that: The buckle mechanism (4) comprises two spring shells (401), the interior of the spring shells (401) is slidably connected to a limit ring (402), one end of the limit ring (402) away from the fixing ring (3) is fixedly connected to a spring (403), and one end of the limit ring (402) away from the spring (403) is fixedly connected to a clamping column (405).

3. The high-pressure resistant fiberglass butt joint pipe with internal threads according to claim 2, characterized in that: One end of the limiting ring (402) away from the spring (403) is fixedly connected to a rotating ring (406), and the outside of the rotating ring (406) is fixedly connected to a pull head (407).

4. The high-pressure resistant fiberglass butt joint pipe with internal threads according to claim 3, characterized in that: A sliding groove (404) is provided inside the spring housing (401), and the outside of the pull head (407) is slidably connected to the inside of the sliding groove (404).

5. The high-pressure resistant fiberglass butt joint pipe with internal threads according to claim 1, characterized in that: The outside of the movable ring (6) is slidably connected to the inside of the fixed ring (3), and the outside of the threaded head (7) is slidably connected to the inside of the fixed ring (3).

6. The high-pressure resistant fiberglass butt pipe with internal threads according to claim 4, characterized in that: The outside of the clamping column (405) is slidably connected to the inside of the fixing ring (3).

7. The high-pressure resistant fiberglass butt joint pipe with internal threads according to claim 1, characterized in that: The external thread of the threaded head (7) is connected to the interior of the butt joint pipe (1), and the exterior of the butt joint pipe (1) is sleeved with a rubber sleeve.

8. The high-pressure resistant fiberglass butt joint pipe with internal threads according to claim 1, characterized in that: A threaded groove (8) is provided inside the butt-joint pipe (1).

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