Integrated clamp

Abstract

The integrated hoop comprises a clamping ring, 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 used for connecting two pipelines, the end of at least one pipeline is a horn pipe, and the clamping ring is divided into two opposite sides in the axial direction and used for being connected with two pipe ends capable of being matched respectively; the gasket can be integrated on one side of the clamping ring and elastically enclasps the outer wall of the end of the pipeline, so that the end of the pipeline is located on the inner side of the clamping ring, first connecting parts and second connecting parts which are alternately distributed are formed at the arc edge of the gasket, and the first connecting parts and the second connecting parts are supported on different sides of the clamping ring respectively, so that the gasket is clamped to one side of the clamping ring; an elastic cohesion piece used for clamping the outer wall of the pipeline is further formed on the arc edge of the gasket, and during assembly, the end of the pipeline is attached to the gasket, located in the clamping ring and coaxially arranged with the clamping ring. And when the clamping ring tightly contracts, the clamping ring tightly holds the end part of the pipeline in a sectional manner through the gasket.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and particularly to an integrated clamp. Background Art

[0002] As a pipe connection technology, the traditional design and usage methods of clamps have gradually revealed various technical bottlenecks in long-term practice, especially significant limitations in the installation process, sealing performance, and structural adaptability.

[0003] Specifically, if the pipe is not completely centered after being inserted into the gasket, the entire structure needs to be disassembled and reinstalled, resulting in wasted man-hours. According to statistics, the rework rate due to alignment errors in industrial sites is as high as 15%. The assembly difficulty is relatively high. The current assembly method is to first put the clamp on one end of the pipe to be connected, then sequentially place the gaskets inside the clamp, then insert the bell-shaped part at the other end onto the gasket inside the clamp, and finally lock the clamp. The installation of the clamp can only be completed in a fixed order, with cumbersome steps and overly high requirements for workers, making the assembly difficult, and it is difficult to ensure the sealing connection requirements of the clamp after assembly.

[0004] Therefore, there is still a need for an integrated clamp to solve the above problems. Summary of the Invention

[0005] The present invention provides an integrated clamp for solving the above problems.

[0006] The object of the present invention is achieved by the following technical solutions:

[0007] An integrated clamp, comprising:

[0008] 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, at least one end of the pipe being a bell-shaped pipe, and the axial direction of the snap ring being divided into opposite sides for connecting two matching pipe ends respectively;

[0009] A gasket, the gasket being integratable on one side of the snap ring and elastically clamping the outer wall of the pipe end, so that the pipe end is located inside the snap ring, and alternating first connecting parts and second connecting parts are formed at the arc edge of the gasket, the first connecting parts and the second connecting parts respectively supporting on different sides of the snap ring, so that the gasket is snap-connected to one side of the snap ring; and an elastic clamping member for clamping the outer wall of the pipe is further formed on the arc edge of the gasket. During assembly, the pipe end is coaxially arranged with the snap ring by fitting the gasket and being located inside the snap ring;

[0010] When the opening of the snap ring shrinks tightly, the snap ring segmentally clamps the pipe end through the gasket.

[0011] In one embodiment, at least one limiting portion is formed on the elastic clamping member. The length of the first connecting portion is greater than that of the second connecting portion. The first connecting portion is hooked on the outer circumferential surface of the snap ring, and the top end of the second connecting portion abuts against the inner circumferential surface of the snap ring to prevent the washer from moving along the axial direction of the snap ring.

[0012] The limiting portion and the elastic clamping member are integrally formed. The limiting portion has a connected guiding surface and a blocking surface. The guiding surface is used to guide the pipe edge of the horn pipe to slide in and stagger to the fitting position with the washer, and the blocking surface is used to prevent the edge of the horn pipe from separating from the surface of the washer.

[0013] In one embodiment, an abutting member is further formed on at least one side of the first connecting portion. The extending direction of the abutting member intersects with the extending direction of the first connecting portion. The abutting member has a protrusion for abutting against the outer curved surface of the horn pipe.

[0014] In one embodiment, the abutting member is a branch formed integrally on the first connecting portion and having a V-shaped angle. The range of the V-shaped angle is 30 - 120 degrees.

[0015] 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.

[0016] In one embodiment, the washer is integrally in a horn shape, and a sealing member for docking with the pipe is formed on the circumferential surface of the washer.

[0017] In one embodiment, the limiting groove is a V-shaped groove.

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

[0019] An integrated washer and snap ring are provided. Before connection, the washer can be first integrated on the inner side of the snap ring, and then the snap ring is pre-tightened to initially combine and fix the washer and the snap ring. Then, the horn-shaped end of the pipe is inserted into the washer and located inside the elastic clamping member on the washer. It can be flexibly inserted, and as the opening of the snap ring closes, the inner diameter gradually decreases, and the elastic clamping member moves linearly and always fits and holds tightly on the outer wall of the horn pipe. On the one hand, it can provide a force in the radial direction of the snap ring, and on the other hand, it can provide a component force perpendicular to the radial direction, so that the horn pipe fits the washer, and through the action of the washer tightly fitting inside the snap ring, the horn pipe, washer, and snap ring maintain a high sealing connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the first embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of the second embodiment of the present invention;

[0022] Figure 3 is Figure 2 a partial enlarged view of portion A of

[0023] Figure 4 is a schematic structural diagram of the first embodiment of the present invention;

[0024] Figure 5 is Figure 3 a partial enlarged view of portion B of

[0025] Figure 6 a schematic radial cross-sectional structure diagram of the present invention.

[0026] In the figure: 1, snap ring; 11, limiting groove; 2, washer; 21, first connecting portion; 22, second connecting portion; 23, elastic clamping member; 24, limiting portion; 241, guiding surface; 242, blocking surface; 25, abutting member; 3, connecting member; 31, limiting flange; 4, sealing member. Detailed implementation manners

[0027] 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 will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their repetitive description will be omitted.

[0028] In the present invention, the words describing positions and directions are all illustrated with reference to the accompanying drawings, but can be changed according to needs, and all the changes made are included in the protection scope of the present invention.

[0029] Referring to Figures 1-6 , the present invention provides an integrated clamp, including: a snap ring 1 and a washer 2. The snap ring 1 and the washer 2 can be formed by stamping and forging respectively, which are not limited herein.

[0030] The snap ring 1 has an openable opening, and a limiting groove 11 is formed on the inner side of the snap ring 1. The shape of the limiting groove 11 is, for example, a V-shaped groove. The limiting groove 11 is used to connect two pipes, and at least one end of the pipe is a bellmouth pipe. The axial direction of the snap ring 1 is divided into opposite two sides, which are respectively used to connect two matching pipe ends. The models between one bellmouth end and the other pipe end need to match.

[0031] The washer 2 can be integrated on one side of the snap ring 1 and elastically hold the outer wall of the end of the pipe, so that the end of the pipe is located inside the snap ring 1. Alternately distributed first connecting parts 21 and second connecting parts 22 are formed at the arc edge of the washer 2. The first connecting parts 21 and the second connecting parts 22 are respectively supported on different sides of the snap ring 1, so that the washer 2 is clamped on one side of the snap ring 1. Moreover, an elastic engaging part 23 for clamping the outer wall of the pipe is further formed on the arc edge of the washer 2. During assembly, the end of the pipe is passed through the washer 2 and located inside the snap ring 1 and coaxially arranged with the snap ring 1. During connection, the washer 2 can be hooked on one side of the snap ring 1, so that the first connecting parts 21 and the second connecting parts 22 respectively abut against the inner side and the outer side of the snap ring 1. The connecting part located on the outer side has an extended part lapping on the outer circumferential surface of the snap ring 1, and the supporting part located on the inner side abuts against the inner circumferential and curved side wall inside the snap ring 1, preventing the washer 2 from moving after being connected to one side of the snap ring 1 and moving along the axis direction of the snap ring 1 relative to the snap ring 1. During installation, the washer 2 can be first inserted along the axis of the snap ring 1 close to the opening on one side, and then the second connecting part 22 will be gradually squeezed, causing the second connecting part 22 to rotate a certain angle relative to the root, and finally abut against the inner wall of the snap ring 1 after staggering, and the adjacent first connecting parts 21 lap on the outer edge of the snap ring 1, without pre-placing the washer 2 inside the snap ring 1 according to complex assembly steps and processes.

[0032] When the opening of the snap ring 1 shrinks tightly, the snap ring 1 segmentally holds the end of the pipe through the washer 2. When the opening of the snap ring 1 gradually approaches and the inner diameter is reduced, the radial pressure of the snap ring 1 squeezes the inner washer 2. The first connecting parts 21 around the washer 2 will fold close to the axis of the snap ring 1 and be elastically compressed. And at this time, the elastic engaging part 23 follows and approaches the outer wall of the bell pipe, so that the bell pipe not only bears the radial constriction force of the snap ring 1, but also receives the inclined force of the elastic engaging part 23 pressing the bell obliquely. It can stably seal and hold the bell pipe under uniform action at various opening sizes, and still has high tightness on the premise of convenient assembly.

[0033] In one embodiment, at least one limiting part 24 is formed on the elastic engaging part 23, and the top side wall of the elastic engaging part 23 abuts against the side wall between the inner side and the outer side of the snap ring 1. The limiting part 24 is, for example, a protrusion formed on the elastic engaging part 23. The protrusion can be a strip-shaped protrusion, a wave-shaped protrusion, a dot-shaped protrusion, etc., which are not limited herein. The top side wall of the elastic engaging part 23 laps on the edge side wall of the snap ring 1. When the snap ring 1 is constricted, the top end of the elastic saturated part on the low-pressure inner side inclines towards the position close to the axis.

[0034] The length of the first connecting portion 21 is greater than that of the second connecting portion 22. The first connecting portion 21 is hung on the outer circumferential surface of the snap ring 1, and the top end of the second connecting portion 22 abuts against the inner circumferential surface of the snap ring 1 to prevent the washer 2 from moving along the axial direction of the snap ring 1. The first connecting portion 21 is used to bypass the snap ring 1 and finally hang on the outer side wall of the snap ring 1, and the top end of the second connecting portion 22 abuts against the inner side wall of the snap ring 1 to prevent the washer 2 from falling off the snap ring 1.

[0035] The limiting portion 24 and the elastic clamping member 23 are integrally formed and can be formed by sheet metal bending during manufacturing. The limiting portion 24 has a connected guiding surface 241 and a blocking surface 242. From a cross-section view, the guiding surface 241 and the blocking surface 242 can be two different arcs, and the radian of the blocking surface 242 is smaller than that of the blocking surface 242. The guiding surface 241 is used to guide the pipe edge of the horn pipe to slide in and stagger to the fitting position with the washer 2, and the blocking surface 242 is used to prevent the edge of the horn pipe from separating from the surface of the washer 2. During assembly, the edge side wall of the largest diameter of the horn pipe can smoothly slide along the guiding surface 241, and will also push the elastic clamping member away from the axis direction along the smooth surface to expand and avoid, so that the horn pipe is finally inserted to the bottom of the blocking surface 242 and cooperates with the main body portion of the washer 2 to elastically lock the horn pipe, and can stably hold the washer 2 and the horn pipe connected to the washer 2 at multiple opening and closing positions.

[0036] Preferably, at least one side of the first connecting portion 21 is further formed with an abutting member 25. The extending direction of the abutting member 25 intersects with the extending direction of the first connecting portion 21. The abutting member 25 has a protrusion for abutting against the outer curved surface of the horn pipe. The abutting member 25 can be a sheet-like extending portion formed at the middle position of the first connecting portion 21. The first connecting portion 21 has two functions. The first function is to hang on the outer circumferential wall of the snap ring 1, and the other function is to abut against the outer side wall of the horn pipe. It can cooperate with the elastic clamping member 23 multiple times to evenly distribute and abut against the horn pipe, enabling the horn pipe to achieve multi-stage fixation. While facilitating installation, it can also always make the washer 2 drive the horn pipe to be stably and sealingly connected inside the snap ring 1 under various opening sizes, ensuring high tightness.

[0037] Preferably, the abutting member 25 is a branch with a V-shaped angle integrally formed on the first connecting portion 21, and the range of the V-shaped angle is 30-120 degrees. The abutting members 25 can be respectively formed on the supporting portions separated on both sides of the first connecting portion 21. When the abutting members 25 are gradually close to and press the horn tube under the constriction of the opening of the snap ring 1, the abutting members 25 will gradually open, avoiding elastic stress concentration on one position of the horn tube, and the V-shaped angle can stably support the gasket 2. After elastic expansion, the elastic force is always effective, improving the overall sealing performance of the clamp.

[0038] Preferably, a connecting member 3 extending toward the outside of the snap ring 1 is formed at the opening of the snap ring 1, and a limiting flange 31 for the end of the locking bolt is formed on the connecting member 3. After the bolt is locked, the bolt is located inside the flange. The limiting flange 31 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 31, which can prevent the bolt or nut from rotating. During movement, the bolt is prevented from loosening or even falling off.

[0039] Preferably, the gasket 2 is integrally in a horn shape, and a sealing member 4 for docking with the pipeline is formed on the annular surface of the gasket 2. The sealing member 4 is, for example, a silicone rubber ring or a rubber ring. During operation, the rubber ring or silicone rubber ring can seal the inner wall of the connected horn tube, enabling the gas transmitted by the horn tube to be stably and tightly transmitted from one part of the pipeline to the straight pipeline inside the other side, realizing efficient gas sealing transmission.

[0040] Preferably, the limiting groove 11 is a V-shaped groove.

[0041] It should be noted that referring to Figure 1 and Figure 3 , Figure 1 shown is Embodiment 1 of the present invention, Figure 3 and this is Embodiment 2 of the present invention. The difference lies in that after the top end of the elastic clamping member 23 extends out, one has a bent hanging function and the other does not have a hanging function.

[0042] 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. An integrated clamp, characterized in that: include: A clamp ring, the clamp ring has an opening that can be opened and closed, and a limiting groove is formed on the inner side of the clamp ring, the limiting groove is used to connect two pipes, at least one end of the pipe is a bell pipe, and the clamp ring is divided into two opposite sides in the axial direction, respectively used to connect two matching pipe ends; A gasket, which can be integrated on one side of the clamping ring and elastically hold the outer wall of the end of the pipe, so that the end of the pipe is located inside the clamping ring. The circular arc edge of the gasket is formed with a first connecting portion and a second connecting portion that are alternately distributed. The first connecting portion and the second connecting portion are respectively supported on different sides of the clamping ring, so that the gasket is clamped on one side of the clamping ring; and an elastic holding piece for clamping the outer wall of the pipe is also formed on the circular arc edge of the gasket. When assembling, the end of the pipe is located inside the clamping ring by fitting the gasket and is coaxially arranged with the clamping ring; When the clamping ring is tightened around the opening, the clamping ring clamps the end of the pipe in sections through the gasket.

2. The integrated clamp according to claim 1, characterized in that: At least one limiting portion is formed on the elastic engaging member, the top side wall of the elastic engaging member abuts against the side wall between the inner side and the outer side of the snap ring, the bottom end is connected to the gasket, the length of the first connecting portion is greater than the length of the second connecting portion, the first connecting portion is hung on the outer annular surface of the snap ring, and the top end of the second connecting portion abuts against the inner annular surface of the snap ring to prevent the gasket from moving along the axial direction of the snap ring; The limiting portion and the elastic engaging member are integrally formed, and the limiting portion has a connected guide surface and a blocking surface, the guide surface is used to guide the pipe edge of the flare pipe to slide in and stagger to a fitting position with the gasket, and the blocking surface is used to prevent the edge of the flare pipe and the surface of the gasket from separating.

3. The integrated clamp according to claim 2, characterized in that: An abutment piece is further formed on at least one side of the first connection portion, the extension direction of the abutment piece intersects with the extension direction of the first connection portion, and the abutment piece has a protrusion for abutting against the outer curved surface of the bell pipe.

4. The integrated clamp according to claim 3, characterized in that: The abutment member is a branch integrally formed on the first connection portion and presenting a V-shaped angle, and the V-shaped angle ranges from 30 to 120 degrees.

5. The integrated clamp according to claim 1, characterized in that: A connecting piece extending toward the outside of the clamping ring is formed at the opening of the clamping ring, and a limiting flange for locking the end of the bolt is formed on the connecting piece. When the bolt is locked, the bolt is located on the inner side of the flange.

6. The integrated clamp according to claim 1, characterized in that: The gasket is in a trumpet shape as a whole, and a sealing member for docking with a pipeline is formed on the annular surface of the gasket.

7. The integrated clamp according to claim 1, characterized in that: The limiting groove is a V-shaped groove.

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