Plastic-coated steel pipe construction stiffening ring device

Abstract

The utility model discloses a plastic-coated steel pipe construction stiffening ring device which comprises an upper half stiffening ring, a lower half stiffening ring and pull rods, guide grooves are formed in the upper half stiffening ring and the lower half stiffening ring in a circumferential array mode, the pull rods are connected into the guide grooves in a sliding mode, first limiting grooves are formed in the inner walls of the two sides of each guide groove, and the first limiting grooves are connected with the pull rods in a sliding mode. A wedge-shaped clamping block is slidably connected into the first limiting groove, one end of the wedge-shaped clamping block is fixedly connected with a fixing spring, and wedge-shaped clamping grooves are formed in the two sides of the pull rod. By rotating the pull rod, the wedge-shaped clamping block and the edge of the wedge-shaped clamping groove rub with each other, so that the wedge-shaped clamping block slides in the first limiting groove under the thrust of friction and drives the fixing spring to be compressed, and when the pull rod drives the wedge-shaped clamping groove to rotate to the position of the wedge-shaped clamping block, the wedge-shaped clamping block is clamped in the wedge-shaped clamping groove. And the fixing spring can drive the wedge-shaped clamping block to be clamped in the wedge-shaped clamping groove, so that the pull rod is limited and fixed, and the stability of the pull rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel pipes, in particular to a plastic-coated steel pipe construction stiffening ring device. Background Art

[0002] Plastic-coated steel pipe is a steel-plastic composite pipe with a single layer of epoxy powder anti-corrosion layer melt-coated on its inner surface and a single layer of epoxy powder anti-corrosion layer or 3PE anti-corrosion layer melt-coated on the outer surface through a spraying process. The coating of the plastic-coated steel pipe has strong adhesion, is impact-resistant, pressure-resistant, and not easy to brittle. It has hygienic, non-toxic, and pollution-free product quality, good chemical resistance, and resistance to biochemical corrosion in soil and marine environments. It is one of the 20 key products developed in my country. Among them, 3PE anti-corrosion spiral steel pipe has a service life of up to 50-100 years. It is so far recognized worldwide as the main material for anti-corrosion coated pipes with the best use effect and best performance. Stiffening rings will be used at the construction site of the plastic-coated steel pipe to achieve the function of reinforcement.

[0003] For example, the Chinese patent publication number is CN219530174U, and the technical solution disclosed in the patent document is as follows: The utility model discloses a stiffening ring device for use on the construction site of an ultra-large diameter plastic-coated steel pipe, comprising a stiffening ring body and a guide hole, wherein the two ends of the stiffening ring body are integrally connected with ear plates. Beneficial effect: The utility model adopts a stiffening ring body, which is two steel semicircular rings, the inner diameter of which is consistent with the outer diameter of the ultra-large diameter plastic-coated steel pipe, and is fixed to form a whole ring by the ear plates at both ends and the fixing bolts, and is sleeved onto one end of the ultra-large diameter plastic-coated steel pipe, thereby avoiding the phenomenon of buckling of the pipe wall at one end of the ultra-large diameter plastic-coated steel pipe, avoiding affecting the quality and efficiency of on-site construction, and avoiding the problem of local instability and buckling caused by excessive local stress, further improving the safety of transportation and storage, ensuring the structural safety of the ultra-large diameter plastic-coated steel pipe, avoiding the phenomenon of the ultra-large diameter plastic-coated steel pipe becoming elliptical during welding and installation, and facilitating the docking of the ultra-large diameter plastic-coated steel pipe, thereby improving on-site construction welding efficiency and construction convenience.

[0004] When the existing plastic-coated steel pipe construction stiffening ring device is in use, the pull rod and the guide hole are movably connected and have no limiting and fixing effect. Therefore, when the pull rod drives the hook rod to rotate to the outside of the stiffening ring body or the inside of the plastic-coated steel pipe, it is still in an active state. The stability needs to be improved, and a limiting component needs to be set for limiting. Utility Model Content

[0005] In response to the problems in the related technology, the utility model proposes a plastic-coated steel pipe construction stiffening ring device to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A plastic-coated steel pipe construction stiffening ring device comprises an upper stiffening ring, a lower stiffening ring, and a pull rod. The inner circumferential array of the upper stiffening ring and the lower stiffening ring is provided with a guide groove. The pull rod is slidably connected to the inside of the guide groove. The inner walls on both sides of the guide groove are provided with a first limiting groove. The interior of the first limiting groove is slidably connected with a wedge-shaped clamping block. One end of the wedge-shaped clamping block is fixedly connected to a fixed spring. Wedge-shaped clamping grooves are provided on both sides of the pull rod.

[0008] A further improvement of the technical solution of the present invention is that one end of the pull rod is fixedly connected to a connecting rod, the end of the connecting rod away from the pull rod is fixedly connected to a hook rod, the end of the pull rod away from the connecting rod is threadedly engaged with a threaded ring, and the inner side of the threaded ring is fixedly connected to a first return spring.

[0009] A further improvement of the technical solution of the present utility model is that: the two ends of the upper stiffening ring are fixedly connected with a first support block, a slot is provided inside the first support block, the two ends of the lower stiffening ring are fixedly connected with a second support block, the upper end of the second support block is fixedly connected with an insert block, a wedge-shaped fixing block is provided inside the insert block, and one end of the wedge-shaped fixing block is fixedly connected to a second return spring.

[0010] By adopting the above technical solution, the upper stiffening ring and the lower stiffening ring are connected together through the insert block and the slot.

[0011] A further improvement of the technical solution of the present utility model is that: a movable groove is provided on one side of the insertion block, the wedge-shaped fixing block is slidably connected to the inside of the movable groove, the end of the second return spring away from the wedge-shaped fixing block is fixedly connected to the inner wall of the movable groove, sliding grooves are provided on both sides of the inner walls of the movable groove, and sliders are fixedly connected on both sides of the wedge-shaped fixing block, and the sliders are adapted to the sliding grooves.

[0012] By adopting the above technical solution, the second reset spring in the solution can drive the wedge-shaped fixing block to perform a reset movement, so that the wedge-shaped clamping block can return to its original position, thereby limiting and fixing the insert block, and then stably connecting the upper stiffening ring and the lower stiffening ring together.

[0013] A further improvement of the technical solution of the present utility model is that: the slider is slidably connected to the inside of the slide groove, the wedge-shaped fixing block is slidably connected to the inside of the movable groove through the slider and the slide groove, a wedge-shaped clamping block is provided at the bottom of the wedge-shaped fixing block, a movable cavity is opened at the bottom of the wedge-shaped fixing block, the wedge-shaped clamping block is slidably connected to the inside of the movable cavity, and a slot is opened on the side of the insert block close to the movable groove, and the slot is adapted to the wedge-shaped clamping block.

[0014] By adopting the above technical solution, the slider and the slide groove in the solution can limit the wedge-shaped fixing block, so that the wedge-shaped fixing block will not fall out of the movable groove, and the wedge-shaped clamping block can be embedded in the inside of the slot.

[0015] A further improvement of the technical solution of the present invention is that: the upper end of the wedge-shaped clamping block is fixedly connected to a third return spring, and one end of the third return spring away from the wedge-shaped clamping block is fixedly connected to the inner upper wall of the movable cavity.

[0016] By adopting the above technical solution, the third reset spring in the solution can drive the wedge-shaped clamping block to perform a reset movement, so that the wedge-shaped clamping block can limit the wedge-shaped fixed block, so that the wedge-shaped fixed block will not slide, further improving the stability of the insert block, and thus ensuring the stability between the upper stiffening ring and the lower stiffening ring.

[0017] A further improvement of the technical solution of the present invention is that limiting grooves are provided on both inner walls of the movable cavity, limiting blocks are fixedly connected to both sides of the wedge-shaped clamping block, and the limiting blocks and the limiting grooves are adapted to each other.

[0018] A further improvement of the technical solution of the present utility model is that: the limit block is slidably connected to the inside of the limit groove, and the wedge-shaped clamping block is slidably connected to the inside of the movable cavity through the limit block and the limit groove.

[0019] By adopting the above technical solution, the limiting block and the limiting groove in the solution can limit the wedge-shaped clamping block, so that the wedge-shaped clamping block will not fall out of the active cavity.

[0020] The beneficial effects of the utility model are:

[0021] 1. By rotating the pull rod, the wedge-shaped clamping block will rub against the edge of the wedge-shaped clamping groove, so that the wedge-shaped clamping block slides inside the first limit groove under the thrust of friction and drives the fixed spring to compress. When the pull rod drives the wedge-shaped clamping groove to rotate to the position of the wedge-shaped clamping block, the fixed spring can drive the wedge-shaped clamping block to be clamped inside the wedge-shaped clamping groove, thereby limiting and fixing the pull rod and improving the stability of the pull rod.

[0022] 2. By inserting the plug into the slot, the wedge-shaped fixing block will slide under the thrust of friction and drive the second return spring to compress. When the upper and lower stiffening rings are connected together, the second return spring can drive the wedge-shaped fixing block to reset, so that the wedge-shaped block can return to its original position to limit and fix the plug, thereby stably connecting the upper and lower stiffening rings together, making it easier for workers to perform installation operations and providing convenience.

[0023] 3. The third reset spring drives the wedge-shaped clamping block to perform reset movement, so that the wedge-shaped clamping block can limit the wedge-shaped fixed block, so that the wedge-shaped fixed block will not slide, further improving the stability of the insert block, thereby ensuring the stability between the upper and lower stiffening rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a front view according to an embodiment of the present utility model;

[0026] Figure 2 This is a structural diagram of the upper stiffening ring according to an embodiment of the present utility model;

[0027] Figure 3 According to the embodiment of the present invention Figure 2 A in the middle shows the enlarged structure diagram;

[0028] Figure 4 This is a diagram of the internal structure of the pull rod according to an embodiment of the present utility model;

[0029] Figure 5 This is a structural diagram of the lower stiffening ring according to an embodiment of the present utility model;

[0030] Figure 6 This is a diagram of the internal structure of the plug according to an embodiment of the present utility model;

[0031] Figure 7 This is a diagram of the internal structure of a wedge-shaped fixing block according to an embodiment of the present utility model.

[0032] In the picture:

[0033] 1. Upper stiffening ring; 101. First support block; 102. Slot; 103. Guide groove; 104. First limiting groove; 105. Wedge-shaped clamping block; 106. Fixed spring; 2. Lower stiffening ring; 201. Second support block; 3. Insert block; 301. Movable groove; 302. Slide groove; 303. Slot; 4. Pull rod; 401. Connecting rod; 402. Hook rod; 403. Wedge-shaped clamping groove; 404. Threaded ring; 405. First return spring; 5. Wedge-shaped fixed block; 501. Slider; 502. Second return spring; 503. Movable cavity; 504. Second limiting groove; 505. Wedge-shaped clamping block; 506. Limiting block; 507. Third return spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] According to an embodiment of the utility model, a stiffening ring device for plastic-coated steel pipe construction is provided.

[0036] Embodiment 1;

[0037] like Figure 1-7 As shown, the plastic-coated steel pipe construction stiffening ring device according to the embodiment of the utility model includes an upper stiffening ring 1, a lower stiffening ring 2, and a pull rod 4. The inner circumferential array of the upper stiffening ring 1 and the lower stiffening ring 2 is provided with a guide groove 103, and the pull rod 4 is slidably connected to the inside of the guide groove 103. The inner walls on both sides of the guide groove 103 are provided with a first limiting groove 104. The inside of the first limiting groove 104 is slidably connected with a wedge-shaped clamping block 105, and one end of the wedge-shaped clamping block 105 is fixedly connected to a fixed spring 106. Wedge-shaped clamping grooves 403 are provided on both sides of the pull rod 4.

[0038] In this embodiment, by rotating the pull rod 4, the wedge-shaped clamping block 105 will rub against the edge of the wedge-shaped clamping groove 403, so that the wedge-shaped clamping block 105 slides inside the first limiting groove 104 under the thrust of friction and drives the fixed spring 106 to be compressed. When the pull rod 4 drives the wedge-shaped clamping groove 403 to rotate to the position of the wedge-shaped clamping block 105, the fixed spring 106 can drive the wedge-shaped clamping block 105 to be clamped inside the wedge-shaped clamping groove 403, thereby limiting and fixing the pull rod 4 and improving the stability of the pull rod 4.

[0039] Embodiment 2;

[0040] like Figure 1-7As shown, according to the plastic-coated steel pipe construction stiffening ring device of the embodiment of the present invention, one end of the pull rod 4 is fixedly connected to the connecting rod 401, the end of the connecting rod 401 away from the pull rod 4 is fixedly connected to the hook rod 402, the end of the pull rod 4 away from the connecting rod 401 is threadedly engaged with a threaded ring 404, the inner side of the threaded ring 404 is fixedly connected to the first return spring 405, the two ends of the upper stiffening ring 1 are fixedly connected to the first support block 101, the interior of the first support block 101 is provided with a slot 102, the two ends of the lower stiffening ring 2 are fixedly connected to the second support block 201, the upper end of the second support block 201 is fixedly connected to the plug block 3, the inner side of the plug block 3 is provided with a There is a wedge-shaped fixing block 5, one end of the wedge-shaped fixing block 5 is fixedly connected to the second return spring 502, a movable groove 301 is provided on one side of the insertion block 3, the wedge-shaped fixing block 5 is slidably connected to the inside of the movable groove 301, and the end of the second return spring 502 away from the wedge-shaped fixing block 5 is fixedly connected to the inner wall of the movable groove 301. Slide grooves 302 are provided on both sides of the inner walls of the movable groove 301, and sliders 501 are fixedly connected to both sides of the wedge-shaped fixing block 5. The slider 501 and the slide groove 302 are adapted to each other, and the slider 501 is slidably connected to the inside of the slide groove 302. The wedge-shaped fixing block 5 is slidably connected to the inside of the movable groove 301 through the slider 501 and the slide groove 302.

[0041] In this embodiment, the upper stiffening ring 1 and the lower stiffening ring 2 are connected together through the insert block 3 and the slot 102. The second return spring 502 can drive the wedge-shaped fixing block 5 to perform a reset movement, so that the wedge-shaped fixing block 5 can return to its original position, thereby limiting and fixing the insert block 3, and then stably connecting the upper stiffening ring 1 and the lower stiffening ring 2 together. The slider 501 and the slide groove 302 can limit the wedge-shaped fixing block 5, so that the wedge-shaped fixing block 5 will not fall out of the movable groove 301.

[0042] Embodiment 3;

[0043] like Figure 1-7 As shown, according to the plastic-coated steel pipe construction stiffening ring device of the embodiment of the present invention, a wedge-shaped clamping block 505 is provided at the bottom of the wedge-shaped fixing block 5, and a movable cavity 503 is opened at the bottom of the wedge-shaped fixing block 5. The wedge-shaped clamping block 505 is slidably connected to the inside of the movable cavity 503. A slot 303 is opened on the side of the insert block 3 close to the movable groove 301. The slot 303 is adapted to the wedge-shaped clamping block 505. The upper end of the wedge-shaped clamping block 505 is fixedly connected to the third return spring 507. The third return spring One end of 507 away from the wedge-shaped block 505 is fixedly connected to the inner upper wall of the movable cavity 503, and a second limiting groove 504 is provided on both sides of the inner walls of the movable cavity 503. The two sides of the wedge-shaped block 505 are fixedly connected to the limiting blocks 506, and the limiting blocks 506 are adapted to the second limiting groove 504. The limiting block 506 is slidably connected to the inside of the second limiting groove 504, and the wedge-shaped block 505 is slidably connected to the inside of the movable cavity 503 through the limiting blocks 506 and the second limiting groove 504.

[0044] In this embodiment, the wedge-shaped block 505 can be embedded in the interior of the slot 303, and the third reset spring 507 can drive the wedge-shaped block 505 to perform a reset movement, so that the wedge-shaped block 505 can limit the wedge-shaped fixing block 5, so that the wedge-shaped fixing block 5 will not slide, further improving the stability of the insert block 3, and thus ensuring the stability between the upper stiffening ring 1 and the lower stiffening ring 2. The limit block 506 and the second limit groove 504 can limit the wedge-shaped block 505, so that the wedge-shaped block 505 will not fall out of the movable cavity 503.

[0045] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0046] In actual application, by inserting the insert block 3 into the slot 102, the wedge-shaped fixing block 5 will rub against the edge of the slot 102 during the insertion process, and the wedge-shaped fixing block 5 will slide inside the movable groove 301 under the thrust of friction, and drive the second return spring 502 to be compressed, and at the same time drive the wedge-shaped clamping block 505 to be embedded in the slot 303. When the upper stiffening ring 1 and the lower stiffening ring 2 are connected together, the second return spring 502 can drive the wedge-shaped fixing block 5 to perform a reset movement, so that the wedge-shaped fixing block 5 can return to its original position to limit and fix the insert block 3, thereby stabilizing the upper stiffening ring 1 and the lower stiffening ring 2. When the second return spring 502 drives the wedge-shaped fixing block 5 to perform a return movement, the wedge-shaped clamping block 505 will rub against the edge of the slot 102, causing the wedge-shaped clamping block 505 to slide in the movable cavity 503 under the thrust of friction, and driving the third return spring 507 to be compressed. When the wedge-shaped fixing block 5 returns to its original position, the third return spring 507 can drive the wedge-shaped clamping block 505 to perform a return movement, so that the wedge-shaped clamping block 505 can limit the wedge-shaped fixing block 5, so that the wedge-shaped fixing block 5 will not slide. At this time, the upper stiffening ring 1 and the lower stiffening ring 2 can be stably connected together.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic-coated steel pipe construction stiffening ring device, comprising an upper stiffening ring (1), a lower stiffening ring (2), and a pull rod (4), characterized in that: The upper stiffening ring (1) and the lower stiffening ring (2) are provided with guide grooves (103) in an internal circumferential array, the pull rod (4) is slidably connected to the inside of the guide groove (103), the inner walls on both sides of the guide groove (103) are provided with first limiting grooves (104), the inside of the first limiting groove (104) is slidably connected to a wedge-shaped clamping block (105), one end of the wedge-shaped clamping block (105) is fixedly connected to a fixing spring (106), and wedge-shaped clamping grooves (403) are provided on both sides of the pull rod (4).

2. A plastic coated steel pipe construction stiffening ring device according to claim 1, characterized in that: One end of the pull rod (4) is fixedly connected to a connecting rod (401), and one end of the connecting rod (401) away from the pull rod (4) is fixedly connected to a hook rod (402). One end of the pull rod (4) away from the connecting rod (401) is threadedly engaged with a threaded ring (404), and the inner side of the threaded ring (404) is fixedly connected to a first return spring (405).

3. A plastic coated steel pipe construction stiffening ring device according to claim 2, characterized in that: The two ends of the upper stiffening ring (1) are fixedly connected to a first support block (101), a slot (102) is provided inside the first support block (101), the two ends of the lower stiffening ring (2) are fixedly connected to a second support block (201), the upper end of the second support block (201) is fixedly connected to an insert block (3), a wedge-shaped fixing block (5) is provided inside the insert block (3), and one end of the wedge-shaped fixing block (5) is fixedly connected to a second return spring (502).

4. A plastic coated steel pipe construction stiffening ring device according to claim 3, characterized in that: A movable groove (301) is provided on one side of the insert block (3), the wedge-shaped fixed block (5) is slidably connected to the inside of the movable groove (301), one end of the second return spring (502) away from the wedge-shaped fixed block (5) is fixedly connected to the inner wall of the movable groove (301), and sliding grooves (302) are provided on both sides of the inner wall of the movable groove (301), and sliders (501) are fixedly connected to both sides of the wedge-shaped fixed block (5), and the sliders (501) and the sliding grooves (302) are adapted to each other.

5. A plastic coated steel pipe construction stiffening ring device according to claim 4, characterized in that: The slider (501) is slidably connected to the inside of the slide groove (302), and the wedge-shaped fixed block (5) is slidably connected to the inside of the movable groove (301) through the slider (501) and the slide groove (302). A wedge-shaped clamping block (505) is provided at the bottom of the wedge-shaped fixed block (5), and a movable cavity (503) is opened at the bottom of the wedge-shaped fixed block (5). The wedge-shaped clamping block (505) is slidably connected to the inside of the movable cavity (503). A slot (303) is opened on a side of the insert block (3) close to the movable groove (301), and the slot (303) and the wedge-shaped clamping block (505) are adapted to each other.

6. A plastic coated steel pipe construction stiffening ring device according to claim 5, characterized in that: The upper end of the wedge-shaped clamping block (505) is fixedly connected to a third return spring (507), and one end of the third return spring (507) away from the wedge-shaped clamping block (505) is fixedly connected to the inner upper wall of the movable cavity (503).

7. A plastic coated steel pipe construction stiffening ring device according to claim 6, characterized in that: Second limiting grooves (504) are provided on both inner walls of the movable cavity (503), and limiting blocks (506) are fixedly connected to both sides of the wedge-shaped clamping block (505), and the limiting blocks (506) are adapted to the second limiting grooves (504).

8. A plastic coated steel pipe construction stiffening ring device according to claim 7, characterized in that: The limiting block (506) is slidably connected to the inside of the second limiting groove (504), and the wedge-shaped clamping block (505) is slidably connected to the inside of the movable cavity (503) through the limiting block (506) and the second limiting groove (504).

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