PVC pipe clamp type pipe fitting fixing connection structure

Abstract

The utility model provides a PVC pipe hoop formula pipe fitting fixed connection structure belongs to connecting pipe fitting technical field, including the connecting pipe, both sides of connecting pipe all are fixedly connected with fixed component, the inside center of connecting pipe is fixedly connected with the docking component, the inside clamping of fixed component is connected with the outer pipe fitting, two the adjacent end of outer pipe fitting extends to the inside of connecting pipe, and is connected with the inside of docking component two ends respectively, the outside center of connecting pipe is fixedly connected with the outer race, the utility model discloses through the setting fixed component, makes the swivel seat rotatable in fixed pipe, drives extruding ring to be close to and extrude clamping block, through the setting of elastic sheet, allows clamping block to be close to the outer pipe fitting of inside, and holds the outer pipe fitting of inside, makes device not to need in the outer pipe fitting inside preset connecting component, can complete the docking fixed of two outer pipe fittings, to improve the applicable scope of structure.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting technology, and in particular to a PVC pipe clamp type pipe fitting fixing connection structure. Background Technology

[0002] PVC pipes are made from polyvinyl chloride resin as the main raw material, with the addition of appropriate amounts of stabilizers, lubricants, fillers, colorants, etc., through plastic extrusion molding and injection molding processes. When connecting two PVC pipes, clamp-type pipe fittings are required to fix the connection structure.

[0003] The patent with publication number CN211010357U proposes a large-diameter plastic pipe connection fitting structure, including: a PVC pipe body, a PE pipe body, a fixing component fixedly sleeved at the connection between the PVC pipe body and the PE pipe body, a left sleeve fixedly welded to the left side of the fixing component, a right sleeve fixedly welded to the right side of the fixing component, the fixing component is composed of an upper clamp, a lower clamp, and a fixing block, and fixing blocks are fixedly welded to both ends of the upper clamp and the lower clamp, and fixing holes are fixedly provided on the top of the fixing blocks.

[0004] In the above case, the two PVC pipes are connected by connecting posts and connecting holes pre-installed on the two pipes, and then the connection is sealed by fasteners. However, this structure cannot be used on PVC pipes without pre-installed connecting posts and connecting holes, and it is difficult to ensure the sealing effect at the connection by fasteners alone, which limits the applicability of the structure. Utility Model Content

[0005] The purpose of this utility model is to provide a PVC pipe clamp-type pipe fitting fixing connection structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC pipe clamp-type pipe fitting fixing connection structure, including a connecting pipe, with fixing components fixedly connected to both sides of the connecting pipe, a docking component fixedly connected to the center of the inner side of the connecting pipe, an outer pipe fitting snapped into the inner side of the fixing component, two adjacent ends of the outer pipe fittings extending to the inner side of the connecting pipe and slidably connected to the inner sides of both ends of the docking component, and an outer ring fixedly connected to the center of the outer side of the connecting pipe.

[0007] In a preferred embodiment, the fixing assembly includes a fixing tube fixedly connected to the outside of the connecting tube, a rotating seat being threadedly connected to the outside of the fixing tube, and a compression ring being fixedly connected to the side of the rotating seat away from the connecting tube.

[0008] In a preferred embodiment, a sealing ring and a connecting ring are fixedly connected to the inner side of the fixed tube. The side of the connecting ring away from the sealing ring is tightly fitted with the side of the sealing ring away from the connecting tube. Several elastic plates are fixedly connected to the side of the connecting ring away from the sealing ring, and a clamping block is fixedly connected to the other side of the elastic plates.

[0009] In a preferred embodiment, the elastic sheets are distributed in a ring on the outside of the outer tube on the same side, and the clamping block is fixedly connected with a number of protrusions on the side near the outer tube, and the other side of the protrusions is in close contact with the outer tube on the same side.

[0010] In a preferred embodiment, the top of the clamping block is inclined on the side away from the connecting pipe, and the bottom of the extrusion ring is provided with an inclined surface adapted to the clamping block on the side near the connecting pipe. The inclined surfaces of the clamping block and the extrusion ring are in close contact.

[0011] In a preferred embodiment, the inner side of the sealing ring is in close contact with the outer pipe fitting on the same side, and a retaining ring is fixedly connected to the outer side of the fixed pipe near the connecting pipe. The retaining ring is in close contact with the side of the rotating seat near the connecting pipe on the same side.

[0012] In a preferred embodiment, the docking assembly includes an inner ring fixedly connected to the inside of the connecting pipe, with sealing gaskets fixedly connected to both sides of the inner ring. The outer side of the sealing gasket is fixedly connected to the inner wall of the connecting pipe, and one end of the outer pipe located inside the connecting pipe is slidably connected to the inner side of the sealing gasket on the same side.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, by setting a fixing component, allows the rotating seat to rotate outside the fixing tube, driving the extrusion ring to approach and squeeze the clamping block. Through the setting of the elastic sheet, the clamping block is allowed to approach the inner outer tube and clamp the inner outer tube. This allows the device to complete the docking and fixing of two outer tubes without the need for a pre-set connecting component inside the outer tube, thus improving the applicability of the structure.

[0015] This utility model, by setting a docking component and a sealing ring, allows the docking point of two outer pipe fittings to extend into the connecting pipe and dock on both sides of the inner ring. The sealing gasket ensures the sealing of the docking point. Combined with the sealing ring's compression sealing of the outer side of the outer pipe fittings, the device has a double sealing effect, preventing leakage at the docking point and ensuring the structural airtightness. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a PVC pipe clamp-type pipe fitting fixing connection structure;

[0017] Figure 2This is a cross-sectional three-dimensional structural diagram of the connecting pipe;

[0018] Figure 3 for Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the disassembled three-dimensional structure of the fixed component.

[0020] In the diagram: 1. Connecting pipe; 2. Fixing pipe; 3. Rotary seat; 4. Extrusion ring; 5. Retaining ring; 6. Sealing ring; 7. Connecting ring; 8. Elastic sheet; 9. Clamping block; 10. Raised strip; 11. Inner ring; 12. Sealing gasket; 13. Outer ring; 14. Outer fitting. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Please see Figures 1-4 This utility model provides a PVC pipe clamp-type pipe fitting fixed connection structure, including a connecting pipe 1, with fixing components fixedly connected to both sides of the connecting pipe 1, a docking component fixedly connected to the center of the inner side of the connecting pipe 1, an outer pipe fitting 14 snapped into the inner side of the fixing component, the adjacent ends of the two outer pipe fittings 14 extending to the inner side of the connecting pipe 1 and slidably connected to the inner sides of both ends of the docking component, an outer ring 13 fixedly connected to the center of the outer side of the connecting pipe 1, the docking component including an inner ring 11 fixedly connected to the inner side of the connecting pipe 1, sealing gaskets 12 fixedly connected to both sides of the inner ring 11, the outer side of the sealing gasket 12 being fixedly connected to the inner wall of the connecting pipe 1, one end of the outer pipe fitting 14 located inside the connecting pipe 1 being slidably connected to the inner side of the sealing gasket 12 on the same side, and the fixing component including a fixing pipe 2 fixedly connected to the outer side of the connecting pipe 1.

[0024] Hold the connecting pipe 1 with the outer ring 13, pass the mating ends of the two outer pipe fittings 14 through the two fixed pipes 2 respectively, insert them into the connecting pipe 1, slide them into the two sealing gaskets 12 and press them against each other, thus completing the installation of the two outer pipe fittings 14.

[0025] Please see Figures 1-4A rotating seat 3 is threaded onto the outer side of the fixed tube 2. A compression ring 4 is fixedly connected to the side of the rotating seat 3 away from the connecting tube 1. A sealing ring 6 and a connecting ring 7 are fixedly connected to the inner side of the fixed tube 2. The connecting ring 7 and the sealing ring 6 are tightly fitted to each other on the side away from the connecting tube 1. Several elastic plates 8 are fixedly connected to the side of the connecting ring 7 away from the sealing ring 6. A clamping block 9 is fixedly connected to the other side of the elastic plates 8. The elastic plates 8 are distributed in a ring on the outer side of the outer tube fitting 14 on the same side. Several elastic plates 8 are fixedly connected to the side of the clamping block 9 near the outer tube fitting 14. A raised strip 10 is provided, and the other side of the raised strip 10 is in close contact with the outer tube 14 on the same side. The top of the clamping block 9 is inclined on the side away from the connecting tube 1. The bottom of the extrusion ring 4 is provided with an inclined surface adapted to the clamping block 9 on the side close to the connecting tube 1. The inclined surfaces of the clamping block 9 and the extrusion ring 4 are in close contact. The inner side of the sealing ring 6 is in close contact with the outer tube 14 on the same side. A retaining ring 5 is fixedly connected to the outer side of the fixing tube 2 near the connecting tube 1. The retaining ring 5 is in close contact with the side of the rotating seat 3 near the connecting tube 1 on the same side.

[0026] Rotate the two rotating seats 3 in sequence, so that the rotating seats 3 and the extrusion ring 4 move toward the connecting pipe 1 until they abut against the retaining ring 5. At the same time, the inclined surface of the extrusion ring 4 will closely fit the inclined surface of the clamping block 9. The elastic sheet 8 will deform through the extrusion action, and the outer pipe 14 of the clamping block 9 will move, thereby tightly clamping the outer pipe 14. The sealing gasket 12 and the sealing ring 6 will seal the joint of the two outer pipes 14, thus completing the connection and fixation.

[0027] When the rotating seat 3 rotates, it drives the extrusion ring 4 connected to it to gradually approach the clamping block 9 and applies a continuous extrusion force to the clamping block 9. The clamping block 9 is connected to the elastic sheet 8. This structural design gives the clamping block 9 a certain amount of room to move, allowing it to move towards the inner outer pipe fitting 14 when it is compressed. As the clamping block 9 moves, it can eventually clamp the inner outer pipe fitting 14 tightly, thereby achieving a firm fixation of the outer pipe fitting 14. This allows the device to efficiently complete the docking and fixing of two outer pipe fittings 14 without pre-setting any connecting parts inside the outer pipe fitting 14. This feature of not needing to pre-set connecting parts greatly improves the applicability of the device, enabling it to be widely used in various PVC pipe fitting connection scenarios of different specifications and types.

[0028] The mating portions of the two outer pipe fittings 14 can extend into the internal space of the connecting pipe 1 and be precisely mated on both sides of the inner ring 11. This design not only provides stable support for the connection of the outer pipe fittings 14, but also ensures that the mating ends of the two outer pipe fittings 14 can be accurately aligned through the central positioning function of the inner ring 11, thus laying the foundation for subsequent sealing operations. When the outer pipe fitting 14 is inserted into the connecting pipe 1 and slides to the inside of the sealing gasket 12, the sealing gasket 12 can tightly fit the outer wall of the outer pipe fitting 14, thus forming the first sealing line at the mating point. The setting of the sealing ring 6 provides the second sealing line for the device. This double sealing design not only avoids leakage at the mating point of the outer pipe fittings 14, but also ensures the sealing performance of the entire structure in various working environments.

[0029] The working principle and usage process of this utility model are as follows: The connecting tube 1 is held by the outer ring 13, and the mating ends of the two outer tubes 14 are passed through the two fixed tubes 2 respectively, inserted into the interior of the connecting tube 1, and slid into the interior of the two sealing gaskets 12 and pressed against each other to complete the installation of the two outer tubes 14. The rotating seats 3 on both sides are rotated in sequence, so that the rotating seats 3 and the compression ring 4 move towards the connecting tube 1 until they press against the retaining ring 5. At the same time, the inclined surface of the compression ring 4 will closely fit the inclined surface of the clamping block 9. Through the compression action, the elastic sheet 8 is deformed, and the clamping block 9 moves the outer tubes 14, thereby tightly clamping the outer tubes 14. The mating joint of the two outer tubes 14 is sealed by the sealing gasket 12 and the sealing ring 6 to complete the connection and fixation.

[0030] The outer fitting 14 mentioned above is a PVC pipe, which is the prior art disclosed in this utility model and will not be described in detail here.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PVC pipe clamp-type pipe fitting fixing connection structure, comprising a connecting pipe (1), characterized in that, Both sides of the connecting pipe (1) are fixedly connected to a fixing component. A docking component is fixedly connected to the center of the inner side of the connecting pipe (1). An outer pipe fitting (14) is snapped into the inner side of the fixing component. The adjacent ends of the two outer pipe fittings (14) extend to the inner side of the connecting pipe (1) and are slidably connected to the inner sides of the two ends of the docking component. An outer ring (13) is fixedly connected to the center of the outer side of the connecting pipe (1).

2. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 1, characterized in that, The fixing assembly includes a fixing tube (2) fixedly connected to the outside of the connecting tube (1), a rotating seat (3) is threadedly connected to the outside of the fixing tube (2), and an extrusion ring (4) is fixedly connected to the side of the rotating seat (3) away from the connecting tube (1).

3. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 2, characterized in that, A sealing ring (6) and a connecting ring (7) are fixedly connected to the inside of the fixed tube (2). The connecting ring (7) and the sealing ring (6) are tightly fitted on the side away from the connecting tube (1). Several elastic pieces (8) are fixedly connected to the side of the connecting ring (7) away from the sealing ring (6). A clamping block (9) is fixedly connected to the other side of the elastic piece (8).

4. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 3, characterized in that, The elastic sheet (8) is distributed in a ring on the outside of the outer tube (14) on the same side. The clamping block (9) has several protrusions (10) fixedly connected to the side of the outer tube (14) near the outer tube (14). The other side of the protrusions (10) is in close contact with the outer tube (14) on the same side.

5. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 4, characterized in that, The top of the clamping block (9) is inclined on the side away from the connecting pipe (1), and the bottom of the extrusion ring (4) is provided with an inclined surface adapted to the clamping block (9) on the side close to the connecting pipe (1). The inclined surfaces of the clamping block (9) and the extrusion ring (4) are in close contact.

6. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 5, characterized in that, The inner side of the sealing ring (6) is in close contact with the outer pipe fitting (14) on the same side. A retaining ring (5) is fixedly connected to the outer side of the fixed pipe (2) near the connecting pipe (1). The retaining ring (5) is in close contact with the side of the rotating seat (3) on the same side near the connecting pipe (1).

7. The PVC pipe clamp-type pipe fitting fixing connection structure according to claim 1, characterized in that, The docking assembly includes an inner ring (11) fixedly connected to the inside of the connecting pipe (1). Both sides of the inner ring (11) are fixedly connected to a sealing gasket (12). The outer side of the sealing gasket (12) is fixedly connected to the inner wall of the connecting pipe (1). The outer pipe fitting (14) located inside the connecting pipe (1) is slidably connected to the inner side of the sealing gasket (12) on the same side.

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