Hidden type quick clamp and pipe fitting connecting structure

Abstract

The invention provides a hidden type rapid clamp and a pipe fitting connecting structure, belongs to the technical field of fluid device fixing structures, and can at least partially solve the problems that bolts and nut parts of an existing clamp structure are exposed, resistance in fluid is increased, water and scale are prone to being accumulated, the flowing efficiency and sanitation performance are affected, and operation in a narrow space is not facilitated. The clamping hoop comprises a clamping hoop body, a buckling arm, a locking piece and a locking groove, wherein one end of the buckling arm is hinged to the clamping hoop body, and the locking piece is arranged at the other end of the buckling arm and used for enabling the buckling arm and the clamping hoop body to be closed. The clamp has the beneficial effects that locking of the clamp is achieved through cooperation of the buckle arm, the locking piece and the locking groove, no exposed thread structure exists, the buckle is attached to the shape of the clamp, meanwhile, the water baffle tightly attached to the buckle arm is arranged, and the water resistance and scale deposition risk is reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of fluid device fixing structure, specifically relating to a concealed quick clamp and pipe fitting connection structure. Background Technology

[0002] Currently, in industries such as water treatment, power plant fine treatment, pharmaceuticals, and food, three-section clamp fixing structures are often used for disassembly and assembly in pipeline connection structures such as filter elements (such as filter housings or pretreatment devices).

[0003] However, while traditional three-section clamp structures are easy to disassemble, their bolts, nuts, and other operating components are often exposed. This not only increases resistance in the fluid but also easily leads to water and scale buildup, affecting flow efficiency and hygiene performance, and is unsuitable for operation in confined spaces. Especially in high-speed water flow or closed pipeline environments, the exposed bolts of the clamp have a significant impact on hydrodynamics and increase the complexity and safety risks during assembly and disassembly. Therefore, there is an urgent need for a purely mechanical clamping system that eliminates the need for exposed structures and allows for rapid clamping and release, in order to achieve a compact structure, low flow resistance, and high-efficiency connection. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art, and to provide a concealed quick clamp and pipe fitting connection structure.

[0005] This invention provides a concealed quick clamp, comprising: A clamp body with a buckle, the clamp body including a buckle end and a groove end located on both sides of the buckle opening; a buckle arm, one end of which is hinged to the buckle end of the clamp body; a locking member, which is disposed at the other end of the buckle arm and is used to close the buckle arm with the clamp body; and a locking groove, which is disposed at the groove end of the clamp body. The buckle arm can be rotated to the closed position so that the locking member is embedded in the locking groove and locked, thereby closing the buckle arm with the clamp body.

[0006] Furthermore, the locking element is an elastic wheel rotatably mounted on the latch arm.

[0007] Furthermore, a wedge-shaped self-locking mechanism can be formed between the outer peripheral surface of the locking member and at least one sidewall of the locking groove.

[0008] Specifically, the locking groove is provided with an inclined sidewall so that the opening width of the locking groove is greater than the bottom width of the locking groove.

[0009] Specifically, the opening direction of the locking groove is opposite to the location of the latch, and the inclined sidewall of the locking groove is arc-shaped to guide the locking member to lock into the locking groove.

[0010] Specifically, the clamp body includes two semi-annular clamps that are hinged to each other, and the hinge points of the semi-annular clamps are opposite to the bayonet opening.

[0011] Preferably, the clamp body is integrally formed with a water baffle on the front and rear sides of the locking groove, and the outer contour of the water baffle corresponds to the inner contour of the buckle arm so that it can form a sealed whole with the buckle arm when the buckle arm is closed.

[0012] Furthermore, the clamp body also includes a release groove formed on the clamp body near the buckle end, and a release part is provided at the corresponding position of the release groove. The release part is integrally formed with the buckle arm and can make the buckle arm rotate to release the locking member from the locking groove.

[0013] Another aspect of the present invention provides a pipe connection structure, including pipe fittings with interconnected pipe ends, wherein the interfaces of the pipe fittings are fixed by the aforementioned concealed quick clamps.

[0014] Furthermore, the fitting includes a filter element.

[0015] The beneficial effects of this invention are as follows: The clamp is locked by the cooperation between the buckle arm, locking part and locking groove. There is no exposed thread structure. The buckle fits the shape of the clamp. At the same time, a water baffle is set to fit tightly with the buckle arm to reduce water resistance and the risk of scale buildup. The buckle arm is released by the cooperation of the release part and release groove. It is a purely mechanical operation and can be quickly disassembled and assembled without additional tools. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a concealed quick clamp according to a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the engaging part of a concealed quick clamp according to a specific embodiment of the present invention. Figure 3 This is a schematic diagram of the external structure of the engaging part of a concealed quick clamp according to a specific embodiment of the present invention; Figure 4 This is an exploded structural diagram of the engaging part of a concealed quick clamp according to a specific embodiment of the present invention; The components include: 1. clamp body; 2. hinge; 3. buckle arm; 4. locking element; 5. locking groove; 6. clamp hinge; 7. release part; 8. water baffle; and 9. release groove. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown in the figure, a concealed quick clamp provided by a specific embodiment of the present invention includes a clamp body 1, the clamp body 1 including a bayonet, the two ends of the clamp body 1 located at the bayonet are respectively set as a groove end and a buckle end; a buckle arm 3, one end of the buckle arm 3 is hinged to the buckle end of the clamp body 1; a locking member 4, the locking member 4 is disposed at the other end of the buckle arm 3 and is used to close the buckle arm 3 and the clamp body 1; a locking groove 5, the locking groove 5 is disposed at the groove end of the clamp body 1; The latch arm 3 can be rotated to the closed position so that the locking member 4 is embedded in the locking groove 5 and locked.

[0019] Based on the above basic implementation method, in a specific embodiment, the locking groove 5 is integrally formed and disposed at the groove end on the outer peripheral surface of the clamp body 1.

[0020] In one specific embodiment, the locking element 4 is an elastic wheel that is rotatably mounted on the latch arm 3.

[0021] In this embodiment, the surface of the elastic wheel is provided with anti-slip texture. By providing such anti-slip texture, the friction between the locking member 4 and the locking groove 5 is increased, thereby improving the self-locking stability.

[0022] Furthermore, a wedge-shaped self-locking mechanism is formed between the outer peripheral surface of the locking member 4 and at least one sidewall of the locking groove 5.

[0023] Specifically, the contact of this wedge-shaped self-locking mechanism is either line contact or surface contact.

[0024] More specifically, the locking groove 5 is provided with an inclined sidewall so that the opening width of the locking groove 5 is greater than the bottom width of the locking groove 5 to ensure that the locking member 4 can be smoothly embedded in the locking groove 5 to achieve wedge self-locking.

[0025] Furthermore, the opening direction of the locking groove 5 is opposite to the position of the bayonet, and the inclined sidewall of the locking groove 5 is arc-shaped to guide the locking member 4 to lock in the locking groove 5. The arc-shaped inclined sidewall guides the locking member 4 into the locking groove 5, improving the smoothness of the locking member 4 entering the locking groove 5.

[0026] In another embodiment, the clamp body 1 includes two semi-annular clamps hinged to each other, with the hinge points and bayonet openings of the semi-annular clamps facing each other. For traditional two-piece separate clamps, the bolt holes on the two semi-rings need to be accurately aligned simultaneously during installation, which is very troublesome in narrow spaces or places with poor visibility. The clamp hinge 6 fixes one end, while the other end can open and close freely, completely eliminating this alignment problem and avoiding positioning difficulties.

[0027] Furthermore, the clamp body 1 is integrally formed with a water baffle 8 on the front and rear sides of the locking groove 5, and the outer contour of the water baffle 8 corresponds to the inner contour of the buckle arm 3 so that it can form a sealed whole with the buckle arm 3 when the buckle arm 3 is closed.

[0028] Furthermore, the surfaces of the clamp body 1 and the buckle arm 3 are coated with an anti-corrosion coating to reduce rust on the clamp body 1 and the buckle arm 3, thereby improving their service life.

[0029] Specifically, the inner circumferential surface of the clamp body 1 is formed with a sealing groove for setting a sealing ring to improve the sealing performance of the clamp.

[0030] In another embodiment, the clamp body 1 further includes a release groove 9 formed on the clamp body 1 near the buckle end, and a release part 7 is provided at the corresponding position of the release groove 9. The release part 7 is integrally formed with the buckle arm 3 and can rotate the buckle arm 3 to release the locking member 4 from the locking groove 5.

[0031] Furthermore, the inner wall of the release groove 9 is provided with a guide slope for the release part 7 to move.

[0032] In this embodiment, the release groove 9 is used to allow the release part 7 to move. When unlocking is required, one end of the release part 7 is pressed into the release groove, and the release part 7 rotates to drive the buckle arm 3 to rotate, thereby causing the locking member 4 to release from the locking groove 5.

[0033] In another embodiment, the present invention also provides a pipe fitting connection structure, including pipe fittings with pipe ends connected to each other. The interface of the pipe fittings is fixed by the above-mentioned hidden quick clamp. Since the hidden quick clamp is locked by the locking member 4 on the buckle arm 3 and the locking groove 5, bolts are avoided and there is no exposed thread structure.

[0034] Furthermore, the fitting includes a filter element. The main function of the filter element is to separate unwanted solid particles, suspended matter, colloids, microorganisms (bacteria, viruses), oil droplets, dissolved impurities, odors, pigments, etc. from the fluid through one or more mechanisms such as physical interception (e.g., sieving), adsorption, deep capture, ion exchange, and chemical reaction, thereby purifying the fluid. The filter element mentioned in this embodiment is a cylindrical filter element.

[0035] To help better understand the present invention, the following is combined with... Figures 1 to 3 A more comprehensive and specific embodiment of the present invention is described below. In this embodiment, the concealed quick clamp of the present invention includes a clamp body 1, the clamp body 1 including a bayonet, and the two ends of the clamp body located at the bayonet are respectively configured as a groove end and a buckle end; a buckle arm 3, one end of the buckle arm 3 being hinged to the buckle end of the clamp body 1; a locking member 4, the locking member 4 being disposed at the other end of the buckle arm 3 and used to close the buckle arm 3 and the clamp body 1; and a locking groove 5, the locking groove 5 being disposed at the groove end of the clamp body 1. The latch arm 3 can be rotated to the closed position so that the locking member 4 is embedded in the locking groove 5 and locked.

[0036] In this embodiment, the locking groove 5 is integrally formed at the groove end of the outer peripheral surface of the clamp body 1. The locking member 4 is an elastic wheel rotatably mounted on the buckle arm 3; a wedge-shaped self-locking is formed between the outer peripheral surface of the locking member 4 and at least one side wall of the locking groove 5; the contact of the wedge-shaped self-locking is line contact or surface contact; the locking groove 5 is provided with an inclined side wall so that the opening width of the locking groove 5 is greater than the bottom width of the locking groove 5 to ensure that the locking member 4 can be smoothly embedded in the locking groove 5 to achieve wedge-shaped self-locking; the opening direction of the locking groove 5 is opposite to the position of the buckle, and the inclined side wall of the locking groove 5 is arc-shaped to guide the locking member 4 to lock in the locking groove 5. The setting of the arc-shaped inclined side wall guides the locking member 4 into the locking groove 5, raising the locking member 4. The smoothness of entering the locking groove 5; the clamp body 1 includes two semi-annular clamps that are hinged to each other, and the hinge point of the semi-annular clamps and the bayonet are opposite to each other; the clamp body 1 is integrally formed with a water baffle 8 on the front and rear sides of the locking groove 5, and the outer contour of the water baffle 8 corresponds to the inner contour of the buckle arm 3 so that it can form a sealed whole with the buckle arm 3 when the buckle arm 3 is closed; the surfaces of the clamp body 1 and the buckle arm 3 are provided with an anti-corrosion coating to reduce the corrosion of the clamp body 1 and the buckle arm 3, thereby improving the service life of the clamp body 1 and the buckle arm 3; the inner circumferential surface of the clamp body 1 is formed with a sealing groove for setting a sealing ring to improve the sealing performance of the clamp.

[0037] Furthermore, the clamp body 1 also includes a release groove formed near the buckle end of the clamp body 1, and a release part 7 is provided at the corresponding position of the release groove. The release part 7 is integrally formed with the buckle arm 3 and can rotate the buckle arm 3 to release the locking member 4 and the locking groove 5.

[0038] In this embodiment, taking the housing of a power plant filter element as an example, the application process of this snap-fit ​​structure is described: Before operating the equipment, the clamp structure described in this invention is fitted onto the filter housing and the pipe interface; After aligning the interface sealing surface, press the top of the buckle arm 3 with your finger. The locking element will be pressed into the clamp groove. You will hear a "click" sound to complete the locking. When disassembly is required after operation, press the release part 7 at one end of the buckle arm 3, the locking part disengages from the locking groove 5, the buckle arm 3 is lifted, and the clamp can be easily removed.

[0039] Furthermore, this embodiment also provides a pipe fitting connection structure, including pipe fittings with interconnected pipe ends, wherein the interfaces of the pipe fittings are fixed using the aforementioned concealed quick clamps, and the pipe fittings include filter elements.

[0040] In summary, the embodiments disclosed herein have at least the following technical effects: Quick and easy installation and removal: One-click locking: Simply press the buckle arm 3 to engage the elastic wheel (locking element) with the locking groove 5 to complete the locking. No tools are required, and the operation is simple and efficient (a "click" sound confirms the lock).

[0041] Quick release: By pressing the release part 7 (bottom recess), the lock can be easily released using the lever principle, causing the buckle arm 3 to pop open automatically, achieving quick disassembly.

[0042] Tool-free installation: The locking process is completed entirely manually through the cooperation of the release slot and the release part 7, without the need for additional tools.

[0043] Reliable and stable self-locking performance: Wedge interference fit: The elastic wheel and the inclined sidewall of the locking groove 5 form a wedge self-locking (line contact or surface contact).

[0044] Anti-slip design: The anti-slip texture on the surface of the elastic wheel significantly increases the friction with the sidewalls of the groove, further enhancing the stability of the self-locking mechanism.

[0045] Integrated sealing: The sealing ring set in the groove on the inner circumferential surface of the clamp body 1 can effectively compress the sealing surface when the clamp is locked, ensuring the sealing performance of the interface.

[0046] Optimized operability and maintainability: Concealed release mechanism: The release part is designed near the hinge 2 on the clamp body 1, which is reasonably located and relatively concealed.

[0047] Guide slope: The guide slope on the inner wall of the release groove facilitates the movement of the release part 7, simplifying the unlocking operation, especially when space is limited.

[0048] Elastic locking element: The wheel is made of elastic materials such as rubber and has a certain deformation ability, which makes it easy to press into the groove and absorb minor vibrations, while reducing damage to the mating surface.

[0049] Structural simplification and installation tolerance: Hinged semi-ring design: Compared to traditional two-piece separate clamps, the hinged structure fixes one end while the other end can open and close freely. This completely eliminates the problem of needing to precisely align the bolt holes on both semi-rings during installation, making it particularly suitable for narrow spaces or environments with poor visibility, greatly simplifying the installation and alignment process.

[0050] Durability and environmental adaptability: Anti-corrosion coating: The anti-corrosion coating on the surface of the clamp body 1 and the buckle arm 3 effectively resists rust and extends the service life of the device in harsh environments (such as power plants and water treatment).

[0051] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A concealed quick-release clamp, characterized in that, include: A clamp body with a buckle, the clamp body including buckle ends and groove ends located on both sides of the buckle opening; A latching arm, one end of which is hinged to the latching end of the clamp body; A locking element is provided at the other end of the buckle arm and is used to close the buckle arm with the clamp body; A locking groove is provided at the end of the groove on the clamp body; The buckle arm can be rotated to the closed position so that the locking member is embedded in the locking groove and locked, thereby closing the buckle arm with the clamp body.

2. The concealed quick clamp according to claim 1, characterized in that, The locking element is an elastic wheel that is rotatably mounted on the buckle arm.

3. The concealed quick clamp according to claim 1, characterized in that, A wedge-shaped self-locking mechanism can be formed between the outer peripheral surface of the locking member and at least one sidewall of the locking groove.

4. The concealed quick clamp according to claim 1, characterized in that, The locking groove is provided with an inclined sidewall so that the opening width of the locking groove is greater than the bottom width of the locking groove.

5. The concealed quick clamp according to claim 4, characterized in that, The opening of the locking groove faces away from the location of the latch, and the inclined sidewall of the locking groove is arc-shaped to guide the locking member to lock into the locking groove.

6. The concealed quick clamp according to claim 1, characterized in that, The clamp body includes two semi-annular clamps that are hinged to each other, and the hinge points of the semi-annular clamps are opposite to the bayonet opening.

7. The concealed quick clamp according to claim 1, characterized in that, The clamp body is integrally formed with a water baffle on the front and rear sides of the locking groove, and the outer contour of the water baffle corresponds to the inner contour of the buckle arm so that it can form a sealed whole with the buckle arm when the buckle arm is closed.

8. The concealed quick clamp according to any one of claims 1 to 7, characterized in that, It also includes a release groove formed on the clamp body near the buckle end, a release part is provided at the corresponding position of the release groove, the release part is integrally formed with the buckle arm and can make the buckle arm rotate to release the locking member from the locking groove.

9. A pipe fitting connection structure, comprising pipe fittings with interconnected pipe ends, characterized in that, The pipe fitting is fixed at the interface using a concealed quick clamp according to any one of claims 1 to 8.

10. The pipe fitting connection structure according to claim 9, characterized in that, The fitting includes a filter element.

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