Composite pipe seizure steel core joint

Abstract

The utility model relates to pipeline connection technical field discloses a kind of steel core joints for composite pipe with custody, including a kind of steel core joints for composite pipe with custody, including inner tube, the outer wall of inner tube is equipped with protection mechanism, the protection mechanism is used to carry out protection to joint connecting place, the outer wall bottom of inner tube is equipped with buffer mechanism, the buffer mechanism is used to buffer the composite pipe being working;The protection mechanism includes multiple buckles, multiple The buckle is all installed in the outer wall of inner tube, the top of buckle is slidably connected with baffle, the outer wall adjacent side of baffle is all fixedly connected with rack.The utility model in, rotate turntable one time, power is passed to gear through rotating shaft, drive baffle to move to joint connecting place top and carry out protection, solve static adsorption although good But high-frequency vibration in protective cover due to resonance lateral displacement, lead to buckle cannot accurate alignment, protective cover is offset, and further cannot completely protect the problem of joint.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a snap-fit ​​steel core connector for composite pipes. Background Technology

[0002] Composite pipes are pipes made of two or more different materials through a specific process. They use metal (such as steel or aluminum) as the reinforcing skeleton and are combined with plastic or rubber materials. They combine the high strength and rigidity of metals with the corrosion resistance, wear resistance, and insulation properties of non-metals. They have various structural designs, including aluminum-plastic composite pipes, steel-plastic composite pipes, and steel wire mesh reinforced plastic composite pipes. They are connected by heat fusion, crimping, and flanges. They are widely used in building water supply and drainage, gas transmission, and industrial fluid transmission. They can adapt to complex working conditions such as high pressure, corrosion, and high temperature, improving the reliability of pipeline systems while reducing installation and maintenance costs.

[0003] Existing composite pipe clamped steel core joints use metal protective covers to physically protect the pipe connection, preventing damage to the joint from mechanical impacts during construction and affecting its use. Existing technology uses magnetic attraction and snap-on temporary positioning technology. By embedding neodymium iron boron magnets on the back of the protective cover, the magnets are first attracted to the metal surface of the joint for quick positioning during installation, and then the snap-on is used to complete the fixation. This avoids the risk of falling when operating with one hand at height. However, the magnetic attraction force performs well under static conditions. Under high-frequency vibration, the protective cover will resonate and cause lateral displacement, resulting in the snap-on not being able to be accurately aligned. This causes the protective cover to shift, and it cannot fully protect the joint. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a composite pipe clamping steel core connector, which aims to improve the problem that when using a magnetic adsorption protective cover in the prior art, the magnetic adsorption force performs well under static conditions, but under high-frequency vibration, the protective cover will undergo lateral displacement due to resonance, resulting in the buckle not being accurately aligned, thus causing the protective cover to shift and failing to fully protect the joint.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a snap-fit ​​steel core connector for composite pipes, comprising an inner tube, a protective mechanism installed on the outer wall of the inner tube for protecting the connector connection, a shock-absorbing mechanism installed at the bottom of the outer wall of the inner tube for buffering the composite pipe in operation; the protective mechanism includes multiple snaps, all of which are installed on the outer wall of the inner tube, a baffle is slidably connected to the top of the snaps, a rack is fixedly connected to each adjacent side of the outer wall of the baffle, a gear is installed on the outer wall of the rack, the outer wall of the gear meshes with the outer walls of the multiple racks, a rotating shaft is fixedly connected to the middle of the gear, a turntable is fixedly connected to the top of the rotating shaft, a top plate is fixedly connected to the top of the snaps, and the middle of the top plate is rotatably connected to the outer wall of the rotating shaft.

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

[0007] The shock-absorbing mechanism includes a base, which is installed on the bottom of the outer wall of the inner tube. Multiple threaded rings are installed on the top of the outer wall of the base. Rubber pads are fixedly connected to the top of the outer walls of the multiple threaded rings. A threaded rod is threadedly connected to the inner wall of the threaded ring. A turntable is fixedly connected to the right end of the outer wall of the threaded rod.

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

[0009] Multiple sliders are equidistantly installed on the top left and right ends of the outer wall of the base. A spring is fixedly connected to the top of the outer wall of the multiple sliders. A piston is fixedly connected to the top of the outer wall of the spring. The top of the piston is fixedly connected to the bottom of the outer wall of the rubber pad.

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

[0011] Limiting grooves are provided at the front and rear ends of the top of the outer wall of the base, and the inside of the limiting grooves is slidably connected to the outer wall of the slider.

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

[0013] The protective mechanism is equipped with multiple push-lock rings, which are installed on the outer wall of the inner tube. Multiple latching plates are installed at equal intervals on the middle of the outer wall of the inner tube.

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

[0015] The buckle has multiple sealing rings installed inside, and all of the sealing rings are installed inside the inner tube.

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

[0017] The protective mechanism is equipped with an inner liner core, and the inner wall of the inner tube is fixedly connected to the outer wall of the inner liner core.

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

[0019] Multiple anti-corrosion heat shrink sleeves are installed on the outside of the inner tube, and all of the multiple anti-corrosion heat shrink sleeves are installed on the outer wall of the push-lock ring.

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

[0021] 1. In this utility model, when the turntable is rotated, the power is transmitted to the gear through the rotating shaft, which drives the baffle to move to the top of the joint connection to implement protection. This design solves the defects of the traditional magnetic adsorption protective cover, and avoids the problem that although the static adsorption force is good, the protective cover is displaced laterally due to resonance during high-frequency vibration, which causes the buckle to be unable to be accurately aligned and the protective cover to be offset, thus failing to fully protect the joint.

[0022] 2. In this utility model, rotating the turntable two causes the threaded ring to move the rubber pad left and right along the axial diameter direction through the threaded engagement with the threaded rod. This allows the rubber pad to be moved as needed and provides cushioning for the composite pipe using a buffer mechanism. This solves the drawbacks of traditional hot melt adhesive buffering solutions and avoids the problem of surface cracking and significant reduction in buffering performance caused by the oxidative degradation of the hot melt adhesive injected between the joint and the pipe due to long-term exposure to ultraviolet rays and oxygen. This effectively improves the durability of protection at the composite pipe joint. Attached Figure Description

[0023] Figure 1 This is a front view of a composite pipe clamping steel core connector proposed in this utility model;

[0024] Figure 2 This is a perspective view of a composite pipe clamping steel core connector proposed in this utility model;

[0025] Figure 3 This is a side view of a composite pipe clamping steel core connector proposed in this utility model;

[0026] Figure 4 This is a partial structural cross-sectional view of a composite pipe clamping steel core connector proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of a protective mechanism for a composite pipe clamping steel core joint proposed in this utility model;

[0028] Figure 6 This is an exploded view of the shock-absorbing mechanism of a composite pipe clamping steel core joint proposed in this utility model.

[0029] Legend:

[0030] 1. Inner tube; 2. Protective mechanism; 201. Buckle; 202. Baffle; 203. Rack; 204. Gear; 205. Rotating shaft; 206. Turntable one; 207. Top plate; 3. Shock absorption mechanism; 301. Base; 302. Limiting groove; 303. Slider; 304. Spring; 305. Piston; 306. Rubber pad; 307. Threaded ring; 308. Threaded rod; 309. Turntable two; 4. Clamping plate; 5. Push lock ring; 6. Sealing ring; 7. Corrosion-resistant heat shrink sleeve; 8. Inner lining core. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 5 This utility model provides an embodiment of a steel core connector for composite pipes, comprising an inner pipe 1, a protective mechanism 2 installed on the outer wall of the inner pipe 1 for protecting the connector connection, and a shock-absorbing mechanism 3 installed at the bottom of the outer wall of the inner pipe 1 for buffering the composite pipe in operation; the protective mechanism 2 includes multiple buckles 201, all of which are installed on the outer wall of the inner pipe 1, a baffle 202 is slidably connected to the top of the buckles 201, a rack 203 is fixedly connected to each adjacent side of the outer wall of the baffle 202, a gear 204 is installed on the outer wall of the rack 203, the outer wall of the gear 204 meshes with the outer walls of the multiple racks 203, a rotating shaft 205 is fixedly connected to the middle of the gear 204, a turntable 206 is fixedly connected to the top of the rotating shaft 205, a top plate 207 is fixedly connected to the top of the buckles 201, and the middle of the top plate 207 is rotatably connected to the outer wall of the rotating shaft 205;

[0033] Specifically, the upper middle part of the two buckles 201 is provided with a structure that allows the baffle 202 to slide through. The baffle 202 and the buckle 201 form a sliding engagement relationship. One end of the buckle 201 is welded and fixed to the rack 203. A gear 204 is arranged in the middle of the two racks 203. The gear 204 and the rack 203 are tightly meshed by their teeth to form a linkage transmission structure. When the gear 204 rotates, the two racks 203 move in opposite directions synchronously by the driving force generated by the meshing of their teeth, thereby driving the baffle 202 to move along a preset trajectory. A rotating shaft 205 is welded in the middle of the gear 204. The top of the rotating shaft 205 is connected to the turntable 201. 6. Welded together, a stable power transmission link is formed. When the operator rotates the turntable 206, the rotational power is precisely transmitted to the gear 204 through the rotating shaft 205, driving the gear 204 to rotate and causing the rack 203 and the baffle 202 to move together. Finally, the baffle 202 moves to the top of the joint connection, covering and protecting the joint area. This effectively solves the problem that although the magnet can provide reliable attraction force in a static environment, in high-frequency vibration conditions, the protective cover will undergo lateral displacement due to resonance, causing the buckle 201 to fail to be accurately aligned with the fixed point, thus causing the protective cover to shift and failing to form a complete and stable protection for the equipment joint.

[0034] Reference Figure 2 , Figure 3 and Figure 6 The damping mechanism 3 includes a base 301, which is installed at the bottom of the outer wall of the inner tube 1. Multiple threaded rings 307 are installed on the top of the outer wall of the base 301. Rubber pads 306 are fixedly connected to the top of the outer wall of each of the multiple threaded rings 307. Threaded rods 308 are threadedly connected to the inner wall of the threaded rings 307. Turntable 309 is fixedly connected to the right end of the outer wall of the threaded rod 308. Multiple sliders 303 are equidistantly installed on the left and right ends of the top of the outer wall of the base 301. Springs 304 are fixedly connected to the top of the outer wall of each of the multiple sliders 303. Pistons 305 are fixedly connected to the top of the outer wall of the springs 304. The top of the pistons 305 is fixedly connected to the bottom of the outer wall of the rubber pads 306. Limiting grooves 302 are opened at the front and rear ends of the top of the outer wall of the base 301. The inside of the limiting grooves 302 is slidably connected to the outer wall of the sliders 303.

[0035] Specifically, turntable 309 is tightly connected to one end of threaded rod 308, forming the basic structure for rotational drive. Multiple threaded rings 307 are installed on the outside of threaded rod 308 via threaded engagement. Each threaded ring 307 has a rubber pad 306 welded to its top. When the operator rotates turntable 309, utilizing the principle of threaded transmission, the threaded rings 307, constrained by threaded rod 308, displace along its axial direction, thereby causing the rubber pads 306 to move synchronously. Multiple pistons 305 are mounted at the bottom of the rubber pads 306, and each piston 305 has a spring 304 welded to its bottom. The pistons 305 and springs 304 combine to form a stable buffer structure. During the operation of the composite pipeline, this buffer structure can effectively absorb the generation of pollutants in the pipeline. To mitigate vibration and impact, ensuring stable operation of the pipeline system, multiple limiting grooves 302 are provided on the top of the base 301. The slider 303, welded to the spring 304, can slide within the limiting grooves 302. The limiting grooves 302 restrict the movement trajectory of the slider 303, so that when the turntable 309 is rotated, the threaded ring 307 can only drive the rubber pad 306 to move left and right along the axial diameter of the threaded rod 308. This allows the rubber pad 306 to be precisely adjusted to the required position, solving the problem that in the past, hot melt adhesive was injected into the gap between the joint and the pipe, and cooled to form a flexible colloidal layer for cushioning. However, the hot melt adhesive was easily oxidized and degraded when exposed to ultraviolet light and oxygen for a long time, resulting in surface cracking and a significant decrease in cushioning performance.

[0036] Reference Figure 4 The protective mechanism 2 has multiple push-lock rings 5 ​​installed inside. The multiple push-lock rings 5 ​​are installed on the outer wall of the inner tube 1 and can fill the gap between the composite pipe and the inner tube 1. Multiple clamping pieces 4 are installed at equal intervals in the middle of the outer wall of the inner tube 1. Multiple sealing rings 6 are installed inside the buckle 201. The multiple sealing rings 6 are all installed inside the inner tube 1 to prevent liquid leakage in the pipeline. The protective mechanism 2 has an inner liner core 8 installed inside. The inner wall of the inner tube 1 is fixedly connected to the outer wall of the inner liner core 8. Multiple anti-corrosion heat shrink sleeves 7 are installed on the outside of the inner tube 1. The multiple anti-corrosion heat shrink sleeves 7 are all installed on the outer wall of the push-lock rings 5 ​​to prevent the push-lock rings 5 ​​from expanding and contracting due to heat, thereby affecting the pipeline sealing performance.

[0037] Specifically, within the internal space of the protection mechanism 2, multiple push-lock rings 5 ​​are orderly installed on the outer wall of the inner tube 1. The push-lock rings 5 ​​fit tightly against the gap between the composite pipe and the inner tube 1, effectively filling the gap and reducing the impact of external factors on the pipe connection. In the middle of the outer wall of the inner tube 1, multiple clamping pieces 4 are installed in an equidistant manner to form a stable constraint structure. Multiple sealing rings 6 are set inside the buckle 201. The sealing rings 6 are precisely installed in the internal space of the inner tube 1, forming a barrier to prevent liquid leakage in the pipe by tightly fitting against the pipe wall. An inner lining core 8 is installed in the core position inside the protection mechanism 2. The outer wall of the inner lining core 8 is tightly connected to the inner wall of the inner tube 1 by a fixed connection, enhancing the stability and support of the inner tube 1 structure. On the outside of the inner tube 1, multiple anti-corrosion heat shrink sleeves 7 are fitted onto the outer wall of the push-lock rings 5, tightly wrapping the push-lock rings 5 ​​to form a protective layer. This protective layer can effectively resist changes in the external environment and prevent the push-lock rings 5 ​​from deforming due to thermal expansion and contraction, thereby avoiding adverse effects on the pipe sealing performance and ensuring the safe operation of the entire pipe system.

[0038] Working principle: Rotating turntable 206 protects the joint connection of baffle 202 by rotating turntable 206. Baffle 202 slides through the upper middle part of the two clips 201, one end of which is welded to rack 203. Gear 204 meshes with the racks 203 in the middle, linking them together. Therefore, when gear 204 rotates, the two racks 203 rotate synchronously, causing baffle 202 to move. Turntable 206 is welded to the top of the rotating shaft 205 welded to the middle of gear 204. When turntable 206 is rotated, its power is transmitted to gear 204 through shaft 205, causing baffle 202 to move to the top of the joint connection, thus protecting the connection. This solves the problem that when using a magnetic protective cover, the magnetic attraction is good under static conditions, but under high-frequency vibration, the protective cover will resonate and shift laterally, causing the clips 201 to misalign, resulting in the protective cover shifting and failing to fully protect the joint.

[0039] Rotating turntable 309 moves rubber pad 306 to the desired position to buffer the composite pipe. Turntable 309 is connected to one end of threaded rod 308. Multiple threaded rings 307 are threadedly connected to the outside of threaded rod 308. Rubber pad 306 is welded to the top of each threaded ring 307. When turntable 309 is rotated, the threaded rings 307 move rubber pad 306 outside of threaded rod 308 due to the threaded action. Multiple pistons 305 are mounted at the bottom of rubber pad 306, with springs 304 welded to their bottoms. These components form a stable buffer structure that cushions the composite pipe during operation. (The last sentence appears to be incomplete and possibly refers to a different function, "base 3..."). Multiple limiting grooves 302 are opened at the top of 01, and the slider 303 welded to the spring 304 can slide inside. Due to the limitation of the limiting grooves 302, when the turntable 309 is rotated, the threaded ring 307 can only drive the rubber pad 306 to move left and right along the axial diameter of the threaded rod 308. This allows the turntable 309 to rotate and move the rubber pad 306 to the desired position. This solves the problem that when hot melt adhesive is injected into the gap between the joint and the pipe and forms a flexible colloid layer after cooling to buffer the composite pipe joint, the hot melt adhesive will be exposed to ultraviolet rays and oxygen for a long time, which will cause oxidation and degradation, resulting in surface cracking and a significant reduction in buffering performance.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite pipe clamping steel core connector, comprising an inner pipe (1), characterized in that: The outer wall of the inner tube (1) is equipped with a protective mechanism (2), which is used to protect the joint connection. The bottom of the outer wall of the inner tube (1) is equipped with a shock-absorbing mechanism (3), which is used to buffer the composite tube in operation. The protective mechanism (2) includes multiple buckles (201), all of which are installed on the outer wall of the inner tube (1). A baffle (202) is slidably connected to the top of each buckle (201). A rack (203) is fixedly connected to each adjacent side of the outer wall of the baffle (202). A gear (204) is installed on the outer wall of the rack (203). The outer wall of the gear (204) meshes with the outer walls of the multiple racks (203). A rotating shaft (205) is fixedly connected to the middle of the gear (204). A turntable (206) is fixedly connected to the top of the rotating shaft (205). A top plate (207) is fixedly connected to the top of the buckle (201). The middle of the top plate (207) is rotatably connected to the outer wall of the rotating shaft (205).

2. The composite pipe clamping steel core connector according to claim 1, characterized in that: The shock-absorbing mechanism (3) includes a base (301), which is installed on the bottom of the outer wall of the inner tube (1). Multiple threaded rings (307) are installed on the top of the outer wall of the base (301). Rubber pads (306) are fixedly connected to the top of the outer wall of each of the multiple threaded rings (307). A threaded rod (308) is threadedly connected to the inner wall of the threaded ring (307). A turntable (309) is fixedly connected to the right end of the outer wall of the threaded rod (308).

3. A composite pipe clamping steel core connector according to claim 2, characterized in that: Multiple sliders (303) are equidistantly installed on the top left and right ends of the outer wall of the base (301). A spring (304) is fixedly connected to the top of the outer wall of the multiple sliders (303). A piston (305) is fixedly connected to the top of the outer wall of the spring (304). The top of the piston (305) is fixedly connected to the bottom of the outer wall of the rubber pad (306).

4. A composite pipe clamping steel core connector according to claim 3, characterized in that: The outer wall of the base (301) has limit grooves (302) at both the front and rear ends. The interior of the limit grooves (302) is slidably connected to the outer wall of the slider (303).

5. A composite pipe clamping steel core connector according to claim 1, characterized in that: The protective mechanism (2) is equipped with multiple push-lock rings (5), which are installed on the outer wall of the inner tube (1). Multiple latching pieces (4) are installed at equal intervals in the middle of the outer wall of the inner tube (1).

6. A composite pipe clamping steel core connector according to claim 1, characterized in that: The buckle (201) has multiple sealing rings (6) installed inside, and the multiple sealing rings (6) are installed inside the inner tube (1).

7. A composite pipe clamping steel core connector according to claim 1, characterized in that: The protective mechanism (2) is equipped with an inner lining core (8), and the inner wall of the inner tube (1) is fixedly connected to the outer wall of the inner lining core (8).

8. A composite pipe clamping steel core connector according to claim 5, characterized in that: Multiple anti-corrosion heat shrink sleeves (7) are installed on the outside of the inner tube (1), and the multiple anti-corrosion heat shrink sleeves (7) are all installed on the outer wall of the push lock ring (5).

Images