Bearing, sealing and self-locking structure based on water heating pipe

Abstract

The utility model belongs to the field of water heating pipes, and particularly relates to a bearing, sealing and self-locking structure based on water heating pipes, which comprises a pipe A and a pipe B, connecting blocks are arranged on the two sides of one end of the pipe A and the two sides of one end of the pipe B, limiting assemblies are arranged on the surfaces of the connecting blocks of the pipe A, and butt joint blocks are arranged on the surfaces of the connecting blocks of the pipe B; the limiting assembly comprises a U-shaped clamping box fixed to the surface of the connecting block. Through the spring self-locking design of a limiting assembly and a butt joint block, the automatic clamping function of a trapezoidal block and a clamping groove is achieved, the problem that a traditional pipe connector is prone to being separated by external force is solved, the structural principle that a spring resets after being compressed to push the trapezoidal block to be clamped into the clamping groove is adopted, and it is ensured that the tensile strength is remarkably improved after connection; the function that the sliding block is manually pushed to drive the trapezoidal block to be separated from the clamping groove is achieved, the problem that violent damage is needed during disassembly is solved, the structural principle that the connecting rod is in linkage with the sliding block and the limiting column is adopted, unlocking operation is simplified, and damage to the sealing structure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water heating pipe material, concretely is based on the receiving sealing self locking structure of water heating pipe material. BACKGROUND

[0002] Water heating pipe material refers to the pipe material used in water supply, drainage, heating and other water heating systems, mainly including PPR pipe material, which is a new type of plastic pipe material, has good heat resistance, corrosion resistance and energy saving characteristics, and is suitable for cold water and hot water pipes.

[0003] In the prior art, such as the patent number: CN217874744U, a pipe sealing self locking structure and solid wall pipe material are disclosed, which comprises a plug-in interface and a receiving interface, the outer wall of the plug-in interface and the inner wall of the receiving interface are respectively provided with the same number of at least two rings of annular first convex parts and second convex parts, a sealing ring is sleeved on any one of the first convex parts, and the first convex part and the second convex part are engaged and clamped when the plug-in interface is assembled and inserted into the receiving interface.

[0004] Although the above-mentioned patent is very convenient to operate, and the inside and outside are flat after butt joint, it is suitable for excavation or non-excavation occasions, and has wide application range, but after butt joint, the interface lacks locking structure, which causes the pipe to separate when affected by external force, thereby reducing the stability of butt joint, and when pulled out with force, the convex part deforms, thereby reducing the sealing performance. Utility model content

[0005] In order to make up for the shortcomings of the prior art, the interface lacks locking structure after butt joint, which causes the pipe to separate when affected by external force, thereby reducing the stability of butt joint, and when pulled out with force, the convex part deforms, thereby reducing the sealing performance.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: the utility model discloses a based on water heating pipe material's receiving and sealing self -locking structure, including A pipe material and B pipe material, both sides of one end of A pipe material and B pipe material all are provided the connecting block, the connecting block surface of A pipe material is provided with the limiting component, the connecting block surface of B pipe material is provided with the butt joint block, the limiting component includes the U -shaped card box fixed on the connecting block surface, the card box surface sets up and sets up the slot, and its top and bottom all are provided with spring, one end fixed limit post of spring, the top surface and bottom surface of the slot set up sliding hole, and one end of limit post penetrates sliding hole and fixes trapezoidal block, and the surface fixed connecting rod of limit post, the surface of card box is located in the both sides of the slot and sets up the sliding slot, and the sliding slot is provided with the sliding block fixed with connecting rod, and the top surface and bottom surface of butt joint block set up the card slot of adaptation with trapezoidal block, the butt joint block shape matches with the slot, one end inside A elastic sealing pipe of A pipe material is provided, one end B elastic sealing pipe of B pipe material is provided, and the inner wall annular array of A elastic sealing pipe sets up trapezoidal groove, and the outer wall annular array of B elastic sealing pipe sets up trapezoidal strip of adaptation with trapezoidal groove.

[0007] Preferably, when the spring is in a compressed state, the trapezoidal block is completely retracted into the sliding hole, and when the spring is naturally stretched, the trapezoidal block protrudes out of the sliding hole and is clamped with the card slot.

[0008] Preferably, the sliding slot is a T-shaped slot structure, and the sliding block is a I-shaped sliding block matched with the T-shaped slot, and the bottom thereof is welded and fixed with the connecting rod.

[0009] Preferably, the inclination angles of the inclined surfaces of the trapezoidal groove and the trapezoidal strip are the same, and when the trapezoidal strip is inserted into the trapezoidal groove, an interference fit is formed.

[0010] Preferably, the surface of the sliding block exposed to the sliding slot is provided with anti-skid lines, and the pushing direction thereof is consistent with the extending direction of the sliding slot.

[0011] Preferably, the A elastic sealing pipe and the B elastic sealing pipe are made of silicone rubber material, and the contact surfaces thereof are coated with a high-temperature-resistant sealing grease layer.

[0012] The utility model has the advantages that:

[0013] 1. The utility model discloses a limiting component and butt joint block spring self -locking design, realize the automatic clamping function of trapezoidal block and card slot, solved the problem that traditional pipe material interface is easy to separate by external force, the structure principle that spring compression resets and pushes trapezoidal block and clamps into card slot, ensure that the tensile strength is improved significantly after connection, the sliding unlocking design of sliding block and sliding slot, realize the function that sliding block is driven trapezoidal block and separates card slot by manual pushing, solved the problem that violent damage is needed when disassembling, the structure principle that connecting rod linkage sliding block and limit post, simplify unlocking operation and avoid sealing structure damage;

[0014] 2. The utility model discloses a trapezoidal groove / bar meshing design of A elastic sealing pipe and B elastic sealing pipe realizes the radial sealing function of interference fit, solves the pipe fitting leakage problem, the principle of trapezoidal strip insertion extrusion silicon rubber material produces deformation, enhances the sealing surface contact pressure, improves the pressure leakage prevention performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description's drawing only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of A pipe material and B pipe material of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the limiting assembly of the utility model;

[0019] Figure 4 It is the structure schematic diagram of A elastic sealing pipe and B elastic sealing pipe of the utility model.

[0020] In the drawing: 1, A pipe material;2, B pipe material;3, connecting block;4, limiting assembly;41, card box;42, embedded slot;43, spring;44, limiting column;45, sliding hole;46, trapezoidal block;47, connecting rod;48, sliding groove;49, sliding block;5, butt joint block;6, card slot;7, A elastic sealing pipe;8, B elastic sealing pipe;9, trapezoidal groove;10, trapezoidal strip. DETAILED DESCRIPTION

[0021] Below will be to the technical scheme in the embodiment of the utility model in the embodiment of the utility model, clear, complete, it is obvious that the described embodiment only is a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of the utility model protection.

[0022] Please refer to Figures 1-4As shown, the water heating pipe based receiving sealing self-locking structure comprises an A pipe 1 and a B pipe 2; both sides of one end of the A pipe 1 and the B pipe 2 are provided with a connecting block 3; the surface of the connecting block 3 of the A pipe 1 is provided with a limiting assembly 4, and the surface of the connecting block 3 of the B pipe 2 is provided with a butt joint block 5; the limiting assembly 4 comprises a U-shaped clamping box 41 fixed to the surface of the connecting block 3, a clamping groove 42 is formed in the surface of the clamping box 41, springs 43 are arranged at the top and bottom of the clamping groove 42, one end of each spring 43 is fixed to a limiting column 44, sliding holes 45 are formed in the top surface and the bottom surface of the clamping groove 42, one end of the limiting column 44 penetrates through the sliding hole 45 and is fixed to a trapezoidal block 46, a connecting rod 47 is fixed to the surface of the limiting column 44, sliding grooves 48 are formed in the surface of the clamping box 41 on both sides of the clamping groove 42, and a sliding block 49 fixed to the connecting rod 47 is arranged in the sliding groove 48; a clamping groove 6 adapted to the trapezoidal block 46 is formed in the top surface and the bottom surface of the butt joint block 5; the shape of the butt joint block 5 matches that of the clamping groove 42; an A elastic sealing pipe 7 is arranged in one end of the A pipe 1, and a B elastic sealing pipe 8 is arranged in one end of the B pipe 2; trapezoidal grooves 9 are arranged in the inner wall of the A elastic sealing pipe 7 in an annular array, and trapezoidal strips 10 adapted to the trapezoidal grooves 9 are arranged in the outer wall of the B elastic sealing pipe 8 in an annular array;

[0023] In work, when the A pipe 1 and the B pipe 2 are butted, the butt joint block 5 of the B pipe 2 is inserted into the clamping groove 42 of the A pipe 1, the trapezoidal block 46 is compressed by the butt joint block 5 during the pushing process, the spring 43 is reset to push the trapezoidal block 46 to be clamped into the clamping groove 6 after the butt joint block 5 is completely inserted, and meanwhile, the trapezoidal strip 10 of the B elastic sealing pipe 8 is inserted into the trapezoidal groove 9 of the A elastic sealing pipe 7 to form an interference seal, so that mechanical self-locking and elastic sealing are realized to achieve double fixation, the spring 43 is self-locked and cooperates with the trapezoidal groove 9 to solve the problems of easy separation of the interface and sealing failure and improve the connection reliability and leakage prevention performance.

[0024] Further, the trapezoidal block 46 is completely retracted into the sliding hole 45 when the spring 43 is in a compressed state, and the trapezoidal block 46 protrudes out of the sliding hole 45 and is clamped into the clamping groove 6 when the spring 43 is naturally stretched;

[0025] In work, the spring 43 is compressed when the butt joint block 5 is inserted, and the trapezoidal block 46 is retracted into the sliding hole 45 to avoid interference; after being inserted into position, the spring 43 is naturally stretched, the trapezoidal block 46 is clamped into the clamping groove 6, the inclined surface design makes the clamping strength doubled after clamping, the spring 43 is elastically reset to realize automatic locking, the problem of complicated manual operation is solved, and the assembly efficiency and the tensile stability are improved.

[0026] Further, the sliding groove 48 is a T-shaped groove structure, and the sliding block 49 is a I-shaped sliding block 49 matched with the T-shaped groove, and the bottom of the sliding block 49 is welded and fixed to the connecting rod 47;

[0027] When working, the T-shaped slot structure of the sliding groove 48 cooperates with the I-shaped sliding block 49, and when the sliding block 49 is pushed, the bottom connecting rod 47 drives the limiting column 44 to slide linearly, the side wall of the T-shaped slot restricts the deviation of the sliding block 49, and the unlocking action trajectory is ensured to be accurate.

[0028] Further, the inclination angles of the inclined surfaces of the trapezoidal groove 9 and the trapezoidal strip 10 are the same, and when the trapezoidal strip 10 is inserted into the trapezoidal groove 9, an interference fit is formed.

[0029] When working, the inclination angles of the inclined surfaces of the trapezoidal groove 9 and the trapezoidal strip 10 are the same, and when the trapezoidal strip 10 is inserted into the trapezoidal groove 9, an interference fit is formed.

[0030] Further, the sliding block 49 is provided with anti-skid lines on the surface exposed to the sliding groove 48, and the pushing direction is consistent with the extension direction of the sliding groove 48.

[0031] When working, the anti-skid lines on the exposed surface of the sliding block 49 increase the friction of the fingers, and when the sliding block 49 is pushed along the extension direction of the sliding groove 48, the connecting rod 47 drives the limiting column 44 to move linearly, ensuring that the trapezoidal block 46 completely separates from the clamping groove 6. The anti-skid lines and the direction guide design simplify the unlocking operation, solve the problem of slipping misoperation during disassembly, and improve the user experience.

[0032] Further, the A elastic sealing pipe 7 and the B elastic sealing pipe 8 are made of silicone rubber material, and the contact surface is coated with a high-temperature resistant sealing grease layer.

[0033] When working, the A elastic sealing pipe 7 and the B elastic sealing pipe 8 made of silicone rubber material maintain elasticity at high temperature, the high-temperature resistant sealing grease layer fills the micro gap of the contact surface, and the sealing grease compensates for the deformation to maintain the sealing integrity when thermal expansion. The temperature resistance of the material and the sealing grease is coordinated, the sealing failure problem in high-temperature working conditions is solved, and the application environment range of the pipe is expanded.

[0034] Working principle: When the A pipe 1 and the B pipe 2 are connected, the abutting block 5 is inserted into the embedded groove 42 to push the trapezoidal block 46 to compress the spring 43. After being in place, the spring 43 resets to make the trapezoidal block 46 clamped into the clamping groove 6 to complete mechanical self-locking. At the same time, the trapezoidal strip 10 of the B elastic sealing pipe 8 is inserted into the trapezoidal groove 9 of the A elastic sealing pipe 7 to form an interference seal. When disassembling, the sliding block 49 is pushed to drive the limiting column 44 to retract through the connecting rod 47, so that the trapezoidal block 46 is separated from the clamping groove 6. Combined with the elastic deformation of the silicone rubber and the compensation of the high-temperature resistant sealing grease layer for thermal expansion and contraction, the three functions of anti-pulling self-locking, radial sealing and high-temperature stability are realized.

[0035] The above are only preferred embodiments of the present application, and are not used to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features. Any modification, equivalent replacement, similar improvement, etc. within the theory and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-locking, sealing structure based on plumbing pipes, characterized in that: It includes A pipe (1) and B pipe (2); both sides of the one end of the A pipe (1) and B pipe (2) are provided with connecting blocks (3), the surface of the connecting block (3) of the A pipe (1) is provided with a limiting assembly (4), and the surface of the connecting block (3) of the B pipe (2) is provided with a butt block (5); The limiting assembly (4) includes a U-shaped clamping box (41) fixed to the surface of the connecting block (3), the surface of the clamping box (41) is provided with an embedded groove (42), the top and bottom of the embedded groove (42) are provided with springs (43), one end of the spring (43) is fixed with a limiting column (44), the top surface and the bottom surface of the embedded groove (42) are provided with sliding holes (45), one end of the limiting column (44) penetrates through the sliding hole (45) and is fixed with a trapezoidal block (46), the surface of the limiting column (44) is fixedly connected with a connecting rod (47), the surface of the clamping box (41) is provided with sliding grooves (48) on both sides of the embedded groove (42), and the sliding grooves (48) are provided with sliding blocks (49) fixedly connected with the connecting rod (47); the butt block (5) is provided with a clamping groove (6) matched with the trapezoidal block (46) on the top surface and the bottom surface; The shape of the butt block (5) matches the embedded groove (42), one end of the A pipe (1) is provided with an A elastic sealing pipe (7) inside, one end of the B pipe (2) is provided with a B elastic sealing pipe (8), the inner wall of the A elastic sealing pipe (7) is provided with trapezoidal grooves (9) in an annular array, and the outer wall of the B elastic sealing pipe (8) is provided with trapezoidal strips (10) matched with the trapezoidal grooves (9) in an annular array.

2. The water heating pipe material-based receiving sealing self-locking structure according to claim 1, characterized in that: When the spring (43) is in a compressed state, the trapezoidal block (46) is completely retracted into the sliding hole (45), and when the spring (43) is naturally stretched, the trapezoidal block (46) protrudes out of the sliding hole (45) and is clamped with the clamping groove (6).

3. The water heating pipe material-based receiving sealing self-locking structure according to claim 1, characterized in that: The sliding groove (48) is a T-shaped groove structure, and the sliding block (49) is a I-shaped sliding block matched with the T-shaped groove, and the bottom of the sliding block (49) is welded and fixed with the connecting rod (47).

4. The water heating pipe material-based receiving seal self-locking structure according to claim 1, characterized in that: The inclination angles of the inclined surfaces of the trapezoidal groove (9) and the trapezoidal strip (10) are the same, and when the trapezoidal strip (10) is inserted into the trapezoidal groove (9), an interference fit is formed.

5. The water heating pipe material-based receiving seal self-locking structure according to claim 1, characterized in that: The surface of the sliding block (49) exposed to the sliding groove (48) is provided with an anti-skid pattern, and the pushing direction of the sliding block (49) is consistent with the extending direction of the sliding groove (48).

6. The water heating pipe material-based receiving seal self-locking structure according to claim 1, characterized in that: The A elastic sealing pipe (7) and the B elastic sealing pipe (8) are made of silicone rubber material, and the contact surfaces are coated with a high-temperature-resistant sealing grease layer.

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