Hoop with high sealing performance

Abstract

The invention discloses a clamp with high sealing performance. The clamp comprises a clamping ring and a gasket. The clamping ring is provided with an opening capable of being opened and closed, a limiting groove is formed in the inner side of the clamping ring, and the limiting groove is used for connecting two pipelines. The gasket is connected to one side of the clamping ring, a first supporting piece and a second supporting piece which are integrally formed are formed on the circumferential edge of the gasket, and the first supporting piece and the second supporting piece are elastically connected from the inner side and the outer side of the clamping ring respectively so as to be fixed to one side of the clamping ring. At least two supporting wings expanding outwards are formed on the first supporting piece, and the first supporting piece abuts against the outer wall of the pipeline through the supporting wings so that a pipe opening of the pipeline can be attached to the gasket.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and particularly to a clamp with high sealing performance. Background Art

[0002] A clamp is a connecting component used to exhaust waste gas in a pipeline. Currently, clamps require bolt tightening, which is time-consuming and has high space requirements. It is difficult to operate in narrow space scenarios such as automobiles and aviation. Moreover, although the current elastic clamps simplify the installation, the long-term pre-tensioned state is prone to deformation, reducing the tightening effect, and the application of special tools (such as clamp pliers) is limited in complex scenarios.

[0003] The clamp tightly connects pipelines, hoses or equipment components through mechanical force to prevent loosening caused by vibration, shock or pressure fluctuations.

[0004] Before using the current clamps, most clamps need to pre-install the gasket inside the clamping ring of the clamp and align the position of the pipeline with the gasket. The position where the pipeline needs to be supported should be made to correspond to the positions of the other two, and then gradually lock the opening of the clamp to gradually tighten the clamp, so that the pipeline, the clamp and the washer can maintain an accurate mating position, and good sealing performance of the connection can be ensured. The assembly method is single and complex, and the assembly efficiency is low.

[0005] Therefore, there is still a need for a clamp with high sealing performance to solve the above problems. Summary of the Invention

[0006] The present invention provides a clamp with high sealing performance to solve the above problems.

[0007] The object of the present invention is achieved by the following technical solutions:

[0008] A clamp with high sealing performance, comprising:

[0009] A clamping ring, the clamping ring has an openable opening, and a limiting groove is formed inside the clamping ring, and the limiting groove is used to connect two pipelines;

[0010] A washer, the washer is connected to one side of the clamping ring, and an integrally formed first support member and a second support member are formed on the circumferential edge of the washer. The first support member and the second support member support from the inside and outside of the clamping ring respectively to be fixed on one side of the clamping ring. At least two support wings with an outward expansion shape are formed on the first support member. The first support member abuts against the outer wall of the pipeline through the support wings, so that the pipe orifice of the pipeline fits the washer.

[0011] In one embodiment, the first support member has a root and an end, and the support wing is connected between the root and the end on the first support member. The support wing is distributed in a V shape, and the width of the support wing decreases from the bottom connection to the top.

[0012] In one embodiment, the washer is in a flared shape. For the middle section of the first support member and the middle section of the second support member, the included angle between the middle section of the second support member and the axis of the washer is greater than the included angle between the middle section of the first support member and the axis of the washer.

[0013] In one embodiment, the first support member and the second support member are sequentially and spaced apart on the circumferential side of the washer.

[0014] In one embodiment, a connecting member extending toward the outside of the snap ring is formed at the opening of the snap ring. A limiting flange for the end of the locking bolt is formed on the connecting member. After the bolt is locked, the bolt is located inside the flange.

[0015] In one embodiment, the washer is integrally in a flared shape, and a sealing member for docking with the pipeline is formed on the annular surface of the washer.

[0016] In one embodiment, a third support member is further formed on the washer. The third support member has a corrugated portion formed by bending. The outer side of the corrugated portion is used to elastically abut against the outer wall of the pipeline. The root of the third support member is connected to the washer, and the top is lapped at the edge between the inner side and the outer side of the washer.

[0017] In one embodiment, a third support member is further formed on the washer. The third support member has a corrugated portion formed by bending. The outer side of the corrugated portion is used to elastically abut against the outer wall of the pipeline. The root of the third support member is connected to the washer, and the top is lapped on the outer side of the washer.

[0018] Compared with the prior art, the beneficial effects of the present invention at least include:

[0019] The first support member and the second support member are arranged on the washer. The first support member and the second support member support from the inner side and the outer side of the snap ring respectively, so that the washer can be fixed at the opening of one side of the snap ring. There is no need to follow the fixing sequence of first fixing the washer in the snap ring and then screwing and fastening the snap ring. It is flexible to use and simplifies the assembly steps. Moreover, for the pipeline to be connected, there is no need to pre-fix the position on the washer in advance. The snap ring can be tightened first, and then the pipeline can be elastically inserted corresponding to the inner side of the washer. It simplifies the labor intensity and the assembly steps, can greatly reduce the limitations of the assembly steps, and has a wider range of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the clamp according to an embodiment of the present invention;

[0021] Figure 2 is the explosion of the clamp according to an embodiment of the present invention Figure 1 ;

[0022] Figure 3 It is a schematic diagram of the overall structure of the clamp from another perspective according to an embodiment of the present invention;

[0023] Figure 4 is the explosion of the clamp according to an embodiment of the present invention Figure 2 .

[0024] In the figure: 1, snap ring; 11, limit groove; 2, washer; 21, first support member; 22, second support member; 23, support wing; 3, horn member; 4, connecting member; 41, limit flange; 5, seal; 6, third support member; 61, corrugated portion. Detailed implementation manners

[0025] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this invention will be more complete and comprehensive, and the concept of the example embodiments will be fully conveyed to those skilled in the art. Like reference numerals in the figures denote the same or similar structures, and thus their repeated description will be omitted.

[0026] In the present invention, the words describing position and direction are all illustrative with reference to the accompanying drawings, but can be changed according to needs, and all changes made are included in the protection scope of the present invention.

[0027] Referring to Figures 1-4 , the present invention provides a highly sealed clamp, including: a snap ring 1 and a washer 2.

[0028] The snap ring 1 has an openable opening, and a limit groove 11 is formed on the inner side of the snap ring 1. The limit groove 11 is used to connect two pipes. The two pipes are respectively metal pipes through which gas passes, and the pipe diameters at the pipe openings are close to each other and are used as guides for transmitting gas. It is used as a pipeline for exhaust gas transmission in a turbine engine system. The snap ring 1 is, for example, a circular metal part and has a disconnected opening. The snap ring 1 is formed by stamping and bending through mechanical bending during manufacturing. The shape of the limit groove is, for example, a V-shaped groove, and after being cut along the axial direction of the snap ring 1, it is distributed in a V shape.

[0029] The gasket 2 is connected to one side of the clamping ring 1, and the shape of the gasket 2 is a closed metal ring. The circumferential edge of the gasket 2 is formed with an integrally formed first support member 21 and a second support member 22, which are elastically connected from the inner side and the outer side of the clamping ring 1 respectively to be fixed on one side of the clamping ring 1. The first support member 21 is formed with at least two outwardly expanding support wings 23, and the first support member 21 abuts against the outer wall of the pipe through the support wings 23, so that the pipe mouth of the pipe fits the gasket 2. The first support member 21 and the second support member 22 are respectively metal protrusions formed on the clamping ring 1, and can also be metal protrusions extending from the clamping ring 1 connected in other ways. The connection method of the first support member 21 and the second support member 22 is not limited here. The first support member 21 and the second support member 22 are respectively abutted against different sides of the inner and outer sides of the clamping ring 1, so that the gasket 2 can be fixed on the inner side of the clamping ring 1 and located at one side opening, as a support body for the pipeline on one side to be docked on the inner side of the clamping ring 1, playing a role of receiving, and the clamping ring 1 on the other side is fastened to the other side opening inside the open ring through the tightening force of the opening. During assembly, the gasket 2 can be placed at one side opening of the open ring in advance, and a certain number of clamping circles can be pre-tightened to keep the clamping ring 1 in a pre-tightened state, and at this time, the gasket 2 can be inserted into the inside of the clamping ring 1 from the direction of the opening, which is convenient and quick to install, and then the port end of the pipe to be fixed is corresponding to the inner side of the clamping ring 1. It breaks the inherent disadvantage of the traditional clamp that the gasket 2 and the pre-connected pipe must be placed inside the clamp 1 first and then screwed, providing workers with more operation options and reducing the difficulty and intensity of workers' labor. Before installation, you can choose according to specific needs, first pre-install the gasket 2 inside the clamp 1, or when the diameter of the clamp 1 is tightened to a certain range greater than the preset diameter, insert the gasket 2 through the opening on one side of the clamp 1, then insert the port of the pipe into the gasket 2, and finally screw it to the preset pipe diameter. It is flexible, light, and more practical.

[0030] Preferably, the first support member 21 has a root and an end, and the support wing 23 is connected between the root and the end of the first support member 21. The support wing 23 is in an open shape and is connected to the two side edges of the first support member 21. The support wings 23 are distributed in a V shape, and the width of the support wings 23 decreases from the bottom connection to the top. At least one support wing 23 is formed on both sides of a first support member 21, and the bottom ends of the support wings 23 on both sides respectively abut against the outer wall of the pipe. During connection, the end of the pipe is attached to the gasket 2, and the support wings 23 will gradually abut against the outer wall of the pipe as the inner diameter of the snap ring 1 gradually decreases. Through the action of an external force, the pipe is tightly attached to the gasket 2, and the pipe can be firmly attached to the inside of the snap ring 1 through the gasket 2 and connected to another pipe. The pipe can be fully abutted at a preset position, and as the snap ring 1 gradually reduces in diameter, the opening and closing angle of the support wings 23 will also increase accordingly, which can linearly increase the elastic stress on the outer wall of the pipe, and the abutting position will also change accordingly, avoiding product damage.

[0031] Preferably, the overall shape of the horn member 3 is horn-shaped, and the included angle between the middle section of the second support member 22 and the axis of the horn member 3 is greater than the included angle between the middle section of the first support member 21 and the axis of the horn member 3. The second support member 22 obliquely extends into the inner side of the snap ring 1, while the first support member 21 approaches the axis side of the horn member 3. Through experimental tests, such a gasket 2 can stably connect the snap ring 1 and the pipe. The connected device is in a highly stable sealing and locking state and can transmit the exhaust gas of the turbocharged pipeline with high sealing performance.

[0032] Preferably, the first support member 21 and the second support member 22 are sequentially and spaced apart on the circumferential side of the horn member 3. Among them, the first support member 21 and the second support member 22 are alternately distributed on the horn member 3. Using a non-one-to-one correspondence method can ensure a high stable clamping force and avoid stress concentration in a certain section, resulting in damage to the snap ring 1 and easy cracking.

[0033] Preferably, a connecting member 4 extending toward the outside of the snap ring 1 is formed at the opening of the snap ring 1, and a limiting flange 41 for the end of the locking bolt is formed on the connecting member 4. When the bolt is tightened, the bolt is located inside the flange. The opening of the snap ring 1 has two vertical sections at the bayonet, and a limiting flange 41 is formed on the side of the vertical section away from the opening. The limiting flange 41 can be formed by stamping. When the connected bolt passes through and is screwed to the final preset torque, the side wall of the bolt fits with the limiting flange 41, which can prevent the bolt or nut from rotating. During movement, the bolt is prevented from loosening or even falling off.

[0034] Preferably, a seal member 5 for docking with a pipe is formed on the annular surface of the horn member 3. The seal member 5 is an annular rubber ring adhered to the horn member 3 or other flexible material in the form of a ring formed on the horn member 3, which is not limited herein. One end of the pipe for docking is also in a horn shape, and the outward-expanded horn shape fits the seal member 5, which can drive and transport the gas in the pipe with high sealing to the pipe docked on the other side, improving the overall sealing performance of the clamp.

[0035] Preferably, a third support member 6 is further formed on the gasket 2. The third support member 6 has a corrugated portion 61 formed by bending. The outer side surface of the corrugated portion 61 is used to elastically abut against the outer wall of the pipe. The root of the third support member 6 is connected to the gasket 2, and the top is lapped at the edge between the inner side and the outer side of the gasket 2. The third support member 6 can be directly formed on the horn member 3 in a bent form. The corrugated portion 61 of the third support member 6 can be formed by stamping. The corrugated protrusion has an arc surface, and the bottom of the arc surface can elastically abut against the outer wall of the horn pipe. Through its own point or line-shaped elastic support, when the snap ring 1 contracts, it can assist in abutting against the outer wall of the horn pipe, forming an elastic component force in the axial direction of the horn pipe, generating an axial pressure on the horn pipe, causing the port of the horn pipe to face and fit the horn member 3, and driving the horn member 3 to fit on the snap ring 1. The compact layer-by-layer stress transmission ensures that the clamp can maintain high sealing performance and has a high transmission efficiency. In this embodiment, the top of the third support member 6 is lapped on the outside of the snap ring 1, providing stable support for the gasket 2 to lap on the snap ring 1, preventing the gasket 2 from moving relative to the snap ring 1 along the axis of the snap ring 1 and falling in or falling off.

[0036] Referring to Figure 1 , a third support member 6 is further formed on the gasket 2. The third support member 6 has a corrugated portion 61 formed by bending. The outer side surface of the corrugated portion 61 is used to elastically abut against the outer wall of the pipe. The root of the third support member 6 is connected to the gasket 2, and the top is lapped on the outside of the snap ring. Different from the above embodiment, the side wall of the third support member 6 in this example abuts against the thick-wall position of the snap ring 1, and can flexibly follow the reduction of the inner diameter of the snap ring 1 and then elastically abut against the outer wall of the connected pipe.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principles and purposes of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the invention, and all these changes should fall within the protection scope of the claims of the present invention.

Claims

1. A high-sealing clamp, characterized in that, Comprising: A snap ring, the snap ring having an openable opening, and a limiting groove formed on the inner side of the snap ring, the limiting groove being used for connecting two pipes; A gasket, the gasket being connected to one side of the snap ring, and an integrally formed first support member and a second support member being formed on the circumferential edge of the gasket. The first support member and the second support member are elastically connected from the inner side and the outer side of the snap ring respectively to be fixed on one side of the snap ring. At least two support wings in an outwardly expanding shape are formed on the first support member. The first support member abuts against the outer wall of the pipe through the support wings, so that the pipe orifice fits the gasket.

2. The clamp according to claim 1, wherein, The first support member has a root portion and an end portion, the support wings being connected between the root portion and the end portion on the first support member. The support wings are distributed in a V shape, and the width of the support wings decreases from the bottom connection to the top.

3. The clamp according to claim 1, characterized in that, The gasket further includes a horn-shaped member, and the included angle between the middle section of the second support member and the axis of the horn-shaped member is greater than the included angle between the middle section of the first support member and the axis of the horn-shaped member.

4. The clamp according to claim 3, wherein, The first support member and the second support member are sequentially and spaced apart on the circumferential side of the horn-shaped member.

5. The clamp according to claim 1, characterized in that, A connecting member extending towards the outside of the snap ring is formed at the opening of the snap ring, and a limiting flange for the end of the locking bolt is formed on the connecting member. After the bolt is locked, the bolt is located inside the flange.

6. The clamp according to claim 4, characterized in that, A sealing member for docking with the pipe is formed on the annular surface of the horn-shaped member.

7. The clamp according to claim 1, characterized in that, A third support member is further formed on the gasket. The third support member has a corrugated portion formed by bending. The outer side of the corrugated portion is used for elastically abutting against the outer wall of the pipe. The root portion of the third support member is connected to the gasket, and the top is lapped at the edge between the inner side and the outer side of the gasket.

8. The clamp according to claim 1, wherein A third support member is further formed on the gasket. The third support member has a corrugated portion formed by bending. The outer side of the corrugated portion is used for elastically abutting against the outer wall of the pipe. The root portion of the third support member is connected to the gasket, and the top is lapped on the outer side of the gasket.

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