Hoop type socket pipe fitting structure

Abstract

A clamp type socket pipe fitting structure relates to the field of engineering pipeline facilities and comprises a first pipe fitting, a second pipe fitting and a clamp, the first pipe fitting and the second pipe fitting are respectively provided with a convex ring portion, the two convex ring portions are opposite to each other, the clamp wraps the outer sides of the convex ring portions and axially limits the convex ring portions, and the first pipe fitting and the second pipe fitting are connected with the clamp. Therefore, the first pipe fitting and the second pipe fitting are connected together. An annular sealing piece is arranged between the two protruding ring parts connected through the clamping hoop and the clamping hoop, the annular sealing piece is pressed on the outer circumferences of the two protruding ring parts through the clamping hoop, and therefore a gap between the two protruding ring parts is sealed. According to the utility model, the annular sealing element is arranged between the hoop and the convex ring part, the annular sealing element is sleeved on the outer side of the convex ring part, and after the hoop is tightened, the annular sealing element is directly pressed on the convex ring part by the hoop, so that the sealing of the connecting part of the pipe fittings is realized, and compared with the prior art, the connecting rigidity is better, and the loading capacity is stronger.

Description

Technical Field

[0001] The utility model belongs to the field of engineering pipeline facilities, and particularly relates to a clamp type socket and spigot pipe fitting structure. Background Art

[0002] A pipeline is a common engineering facility. When the medium transported by the pipeline is liquid or gas, the connection of the pipeline needs to have a sealing performance.

[0003] The utility model patent with the patent number 202222569047.2 discloses a connection clamp structure for a pipeline with a convex ring part. This structure sets a convex ring part at the end of the pipeline, and then realizes the connection of the pipeline through the clamp and the convex ring part. At the same time, a sealing ring is sandwiched between the two pipelines to be connected. During the tightening process of the clamp, the sealing ring is pressed by the end faces of the two pipelines, thereby achieving sealing. However, the end face pressing sealing structure adopted in the above prior art has a poor ability to withstand the internal pressure of the pipe, and moreover, when the pipeline connection bears bending stress, the seal is prone to leakage. Content of the Utility Model

[0004] The utility model provides a clamp type socket and spigot pipe fitting structure, aiming to improve the sealing performance of the pipeline connection by improving the pipeline sealing structure in the prior art.

[0005] The technical problems solved by the utility model are realized by the following technical solutions: The utility model provides a clamp type socket and spigot pipe fitting structure, which includes a first pipe fitting, a second pipe fitting and a clamp. Convex ring parts are respectively processed on the first pipe fitting and the second pipe fitting. The two convex ring parts face each other. The clamp covers the outside of the convex ring parts and axially limits the convex ring parts, thereby connecting the first pipe fitting and the second pipe fitting together;

[0006] An annular seal is arranged between the two convex ring parts connected by the clamp and the clamp. The clamp presses the annular seal on the outer circumferences of the two convex ring parts, thereby sealing the gap between the two convex ring parts.

[0007] As a preferred scheme, a sealing washer A is sandwiched between the two convex ring parts connected by the clamp. After the clamp is tightened, the two convex ring parts approach each other under the pressure of the clamp, thereby clamping the sealing washer A.

[0008] As a preferred scheme, the annular seal and the sealing washer A are integrated.

[0009] As a preferred scheme, the convex ring parts on the first pipe fitting and the second pipe fitting are both arranged at the ends.

[0010] As a preferred scheme, the convex ring part on the first pipe fitting is arranged on the outside rather than at the end of the first pipe fitting, and the end of the first pipe fitting is inserted into the second pipe fitting.

[0011] As a preferred solution, a sealing ring is provided on the mating surface where the first pipe fitting and the second pipe fitting are inserted and mated.

[0012] As a preferred solution, a stop is provided inside the end of the second pipe fitting, and a sealing washer B is provided inside the stop. After the clamp is tightened, the convex ring portion on the first pipe fitting and the end portion of the first pipe fitting respectively press the sealing washer A and the sealing washer B, so that the two play a sealing role.

[0013] As a preferred solution, the annular seal is formed by winding a sealing tape.

[0014] As a preferred solution, the annular seal is made of a rubber material.

[0015] As a preferred solution, it further includes a third pipe fitting, and the end structure of the third pipe fitting is the same as that of the end of the second pipe fitting; the connection structure between the third pipe fitting and the first pipe fitting is the same as the connection structure between the second pipe fitting and the first pipe fitting; the clamp and the annular seal are covered outside the three convex ring portions respectively located on the first pipe fitting, the second pipe fitting and the third pipe fitting, and the clamp presses the annular seal on the outer circumferences of the two convex ring portions located on the second pipe fitting and the third pipe fitting, so as to seal the gap between the two convex ring portions.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, an annular seal is provided between the clamp and the convex ring portion. The annular seal is sleeved outside the convex ring portion. After the clamp is tightened, the annular seal is directly pressed by the clamp on the convex ring portion, realizing the seal at the connection of the pipe fittings. Compared with the prior art, the connection rigidity is better and the pressure-bearing capacity is stronger.

[0018] 2. In the present utility model, the first pipe fitting can be made into a structure with symmetrical ends and used as a general connecting pipe fitting. In this case, only by providing the same convex ring portion as that on the second pipe fitting or the third pipe fitting on all other types of pipe fittings, any two other types of pipe fittings can be connected through the first pipe fitting, thereby greatly improving the convenience of pipe fitting connection, reducing the types of pipe fittings, and reducing the complexity of the pipe fitting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the first embodiment of the present utility model.

[0020] Figure 2 is a schematic structural view of the second embodiment of the present utility model.

[0021] Figure 3 is a schematic structural view of the clamp.

[0022] Figure 4It is a schematic structural diagram of the third embodiment of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of the fourth embodiment of the present utility model.

[0024] Figure 6 It is a schematic structural diagram of the fifth embodiment of the present utility model.

[0025] Figure 7 It is a schematic structural diagram of the sixth embodiment of the present utility model.

[0026] Figure 8 It is a schematic structural diagram of the seventh embodiment of the present utility model.

[0027] Figure 9 It is Figure 8 a schematic structural diagram of the first pipe fitting in

[0028] Figure 1 In Specific embodiments

[0029] The following further describes the present utility model with reference to the accompanying drawings.

[0030] The first embodiment

[0031] As Figure 1 shown, this embodiment includes a first pipe fitting 1, a second pipe fitting 5 and a clamp 3. The first pipe fitting 1 and the second pipe fitting 5 are respectively processed with convex ring parts 2. The two convex ring parts 2 face each other. The clamp 3 is wrapped outside the convex ring parts 2 and axially limits the convex ring parts 2, thereby connecting the first pipe fitting 1 and the second pipe fitting 5 together. The above is a structure that already exists in the prior art and will not be elaborated here.

[0032] As Figure 1 shown, in this embodiment, an annular seal 4 is provided between the two convex ring parts 2 connected by the clamp 3. The clamp 3 presses the annular seal 4 on the outer circumferences of the two convex ring parts 2, thereby sealing the gap between the two convex ring parts 2. During implementation, the annular seal 4 is wound by a sealing tape or can also be made of a rubber material.

[0033] As Figure 1 shown, in this embodiment, the convex ring parts 2 on the first pipe fitting 1 and the second pipe fitting 5 are both provided at the ends.

[0034] As Figure 3As shown, this embodiment provides a clamp 3 structure for reference, but is not limited to this type of clamp 3. Other clamps 3 in the prior art can also be used, as long as the inner side of the clamp 3 has an inclined surface that can force the two connected parts to approach each other.

[0035] It should be noted that the utility model can be used for the connection of pipe fittings. Of course, it can also be used for the connection of pipes, and only the convex ring portion 2 needs to be provided on the pipe.

[0036] The second embodiment

[0037] As Figure 2 shown, the difference between this embodiment and the first embodiment is that the convex ring portion 2 on the first pipe fitting 1 is provided on the outer side rather than the end of the first pipe fitting 1, and the end of the first pipe fitting 1 is inserted into the second pipe fitting 5. By adopting the above insertion and fitting structure, when assembling a horizontally arranged pipeline system, part of the action of lifting the pipe fittings can be omitted, making the assembly of the pipe fittings more convenient, and at the same time increasing the connection strength between the pipe fittings.

[0038] The third embodiment

[0039] As Figure 4 shown, the difference between this embodiment and the first embodiment is that a sealing washer A6 is sandwiched between the two convex ring portions 2 connected by the clamp 3. After the clamp 3 is tightened, the two convex ring portions 2 approach each other under the pressure of the clamp 3, thereby clamping the sealing washer A6. After adding the sealing washer A6, although the connection rigidity at the connection of the clamp 3 will decrease, however, even if there is a slight relative displacement between the two pipe fittings connected by the clamp 3, the sealing materials on both sides of the convex ring portion 2 can compensate for each other to ensure sealing, so the sealing effect will not be weakened.

[0040] The fourth embodiment

[0041] As Figure 5 shown, the difference between this embodiment and the first embodiment is that in this embodiment, the annular seal 4 and the sealing washer A6 are integrated. For example, both the annular seal 4 and the sealing washer A6 are supported by rubber materials and integrally formed (the annular seal 4 and the sealing washer A6 are two parts of one component). The above structure eliminates the gap between the annular seal 4 and the sealing washer A6, and further improves the sealing performance.

[0042] The fifth embodiment

[0043] As Figure 6 shown, the difference between this embodiment and the first embodiment is that in this embodiment, a sealing ring 7 is provided on the mating surface where the first pipe fitting 1 and the second pipe fitting 5 are inserted and mated. The setting of the sealing ring 7 significantly improves the pressure-bearing capacity at the connection of the pipe fittings.

[0044] The sixth embodiment

[0045] As shown Figure 7 in the figure, the difference between this embodiment and the first embodiment is that in this embodiment, a stop collar 8 is provided inside the end of the second pipe fitting 5, and a sealing washer B9 is provided inside the stop collar 8. After the clamp 3 is tightened, the convex ring portion 2 on the first pipe fitting 1 and the end of the first pipe fitting 1 respectively press the sealing washer A6 and the sealing washer B9, so that the two play a sealing role.

[0046] For large-diameter pipes and pipe fittings, there is a problem of excessive insertion resistance in the sealing ring 7 structure in the fifth embodiment, resulting in difficult assembly, and the solution in this embodiment effectively solves this problem.

[0047] The seventh embodiment

[0048] As shown Figure 8 and 9 in the figure, the difference between this embodiment and the first embodiment is that it further includes a third pipe fitting 10, and the end structure of the third pipe fitting 10 is the same as the end structure of the second pipe fitting 5; the connection structure between the third pipe fitting 10 and the first pipe fitting 1 and the connection structure between the second pipe fitting 5 and the first pipe fitting 1 are the same; the clamp 3 and the annular seal 4 are covered outside the three convex ring portions 2 respectively located on the first pipe fitting 1, the second pipe fitting and the third pipe fitting 10, and the clamp 3 presses the annular seal 4 on the outer circumferences of the two convex ring portions 2 located on the second pipe fitting 5 and the third pipe fitting 10, so as to seal the gap between the two convex ring portions 2.

[0049] In this embodiment, the first pipe fitting 1 is made into a symmetric structure at both ends and used as a general connecting pipe fitting. In this case, only by providing the same convex ring portion 2 as that on the second pipe fitting 5 or the third pipe fitting 10 on all other types of pipe fittings, any two other types of pipe fittings can be connected through the first pipe fitting 1, thereby greatly improving the convenience of pipe fitting connection, reducing the types of pipe fittings, and reducing the complexity of the pipe fitting structure.

Claims

1. A clamp-type socket pipe fitting structure, comprising a first pipe fitting (1), a second pipe fitting (5) and a clamp (3), wherein the first pipe fitting (1) and the second pipe fitting (5) are respectively processed with a convex ring portion (2), the two convex ring portions (2) are opposite to each other, and the clamp (3) covers the outer side of the convex ring portion (2) and axially limits the convex ring portion (2), thereby connecting the first pipe fitting (1) and the second pipe fitting (5) together, characterized in that: An annular seal (4) is provided between the two convex ring parts (2) connected by the clamp (3) and the clamp (3), and the clamp (3) presses the annular seal (4) onto the outer circumference of the two convex ring parts (2), thereby sealing the gap between the two convex ring parts (2).

2. The clamp-type bell-and-spigot pipe structure according to claim 1, characterized in that: A sealing gasket A (6) is clamped between the two convex ring parts (2) connected by the clamp (3). After the clamp (3) is tightened, the two convex ring parts (2) are pressed closer to each other by the clamp (3), thereby clamping the sealing gasket A (6).

3. The clamp-type socket-and-spigot pipe structure according to claim 1, characterized in that: The annular seal (4) and the sealing gasket A (6) are integrated into one body.

4. A clamp-type socket-and-spigot pipe structure according to any one of claims 1 to 3, characterized in that: The convex ring portions (2) on the first pipe member (1) and the second pipe member (5) are both arranged at the end portions.

5. The clamp-type bell-and-spigot pipe structure according to claim 1, characterized in that: The convex ring portion (2) on the first pipe member (1) is arranged on the outside of the first pipe member (1) rather than at the end thereof, and the end of the first pipe member (1) is inserted into the second pipe member (5).

6. The clamp-type bell-and-spigot pipe structure according to claim 5, characterized in that: A sealing ring (7) is provided on the mating surfaces of the first pipe fitting (1) and the second pipe fitting (5).

7. The clamp-type bell-and-spigot pipe structure according to claim 5, characterized in that: A stopper (8) is provided on the inner side of the end of the second pipe fitting (5), and a sealing gasket B (9) is provided inside the stopper (8). After the clamp (3) is tightened, the convex ring portion (2) on the first pipe fitting (1) and the end of the first pipe fitting (1) respectively squeeze the sealing gasket A (6) and the sealing gasket B (9), so that the two can play a sealing role.

8. A clamp-type bell-and-spigot pipe structure according to any one of claims 1, 2, 5, 6 or 7, characterized in that: The annular sealing member (4) is formed by winding a sealing tape.

9. A clamp-type bell-and-spigot pipe structure according to any one of claims 1, 2, 5, 6 or 7, characterized in that: The annular seal (4) is made of rubber material.

10. The clamp-type socket-and-spigot pipe structure according to any one of claims 5 to 7, characterized in that: It also includes a third pipe fitting (10), the end structure of the third pipe fitting (10) being the same as the end structure of the second pipe fitting (5); The connection structure between the third pipe fitting (10) and the first pipe fitting (1) is the same as the connection structure between the second pipe fitting (5) and the first pipe fitting (1); The clamp (3) and the annular seal (4) are wrapped around the outer sides of three convex ring portions (2) respectively located on the first pipe (1), the second pipe (5) and the third pipe (10). The clamp (3) presses the annular seal (4) onto the outer circumferences of the two convex ring portions (2) located on the second pipe (5) and the third pipe (10), thereby sealing the gap between the two convex ring portions (2).

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