Copper pipe quick connecting pipe fitting with bidirectional bearing structure

Abstract

A copper pipe quick connecting pipe fitting with a bidirectional bearing structure comprises a middle piece, a locking mechanism and a sealing ring, the middle piece is composed of an annular plate, two sets of bearing pipes and two sets of outer sleeves, and the two sets of bearing pipes and the two sets of outer sleeves are symmetrically arranged on the two sides of the annular plate and fixedly connected with the annular plate; the outer sleeve is arranged on the outer side of the bearing pipe in a sleeving mode and used for inserting a copper pipe, the locking mechanisms are arranged on the outer sleeve in a circumferential array mode and detachably connected with the outer sleeve through limiting mechanisms, and clamping grooves are formed in the positions, corresponding to the locking mechanisms, of the bearing pipe and used for being matched with the locking mechanisms to lock the copper pipe. The sealing ring is of a U-shaped ring structure and is used for being arranged at the end of the red copper pipe in a sleeving mode.

Description

Technical Field

[0001] The utility model relates to the technical field of copper pipe connection, in particular to a copper pipe quick connection pipe fitting with a bidirectional bearing structure. Background Art

[0002] Copper pipes are widely used to transport liquids and gases in a variety of industrial applications, household appliances and construction projects. In order to achieve efficient and reliable connections, a variety of copper pipe connectors are usually used. These connectors need to meet a variety of design and application requirements, including but not limited to corrosion resistance, pressure resistance, sealing and easy installation and removal.

[0003] Copper pipe quick connect fittings are mainly used to quickly and easily connect or disconnect copper pipes. These fittings are often used in systems that require frequent replacement or maintenance, such as industrial manufacturing lines, air conditioning systems, and home plumbing. They not only save installation and maintenance time, but also reduce the need for professional tools and techniques.

[0004] However, the existing copper tube quick-connect fittings usually adopt simple threaded connection or crimping, which can achieve relatively fast assembly and disassembly. However, these designs usually do not have a special guide structure, and only rely on the thread or contact surface between the pipe and the connector to maintain the position and seal, which has some shortcomings: first, due to the lack of a guide structure, the existing copper tube quick-connect fittings may be inaccurately positioned during assembly, resulting in leakage or mismatching problems at the connection; secondly, the lack of a dedicated guide structure also means that friction or vibration may occur during assembly and disassembly, and simple threaded or crimped connections may be easy to loosen under high pressure or dynamic environments, posing certain safety hazards. Finally, since bolts are usually used to tighten the copper tube, in order to increase stability, the copper tube needs to be deformed at the stress point, which will make the bolts and threads easy to slip under high-intensity work. To address this problem, the commonly used maintenance method is to replace the copper tube quick-connect fittings, which wastes costs, and the copper tube is difficult to disassemble after it is vertically deformed. Forced disassembly is not only time-consuming and labor-intensive, but also easy to damage the equipment. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned problems in the prior art, the utility model proposes a copper tube quick-connect fitting with a bidirectional bearing structure.

[0006] According to an embodiment of the utility model, a copper tube quick-connect pipe fitting with a bidirectional load-bearing structure includes an intermediate piece, a locking mechanism and a sealing ring. The intermediate piece is composed of an annular plate, a load-bearing tube and an outer sleeve. The load-bearing tube and the outer sleeve are each provided with two groups, and the two groups of the load-bearing tubes and the outer sleeve are symmetrically arranged on both sides of the annular plate and are fixedly connected to the annular plate. The outer sleeve is sleeved on the outer side of the load-bearing tube for inserting the copper tube. The locking mechanism is arranged in a circular array on the outer sleeve and is detachably connected to the outer sleeve through a limiting mechanism. The load-bearing tube is provided with a card groove at a position corresponding to the locking mechanism for cooperating with the locking mechanism to lock the copper tube. The sealing ring is a U-shaped ring structure for sleeved on the end of the copper tube.

[0007] Preferably, the limiting mechanism includes a limiting tube and a cover plate, the limiting tube is integrally connected to the outer sleeve, and the limiting tube and the outer sleeve are inclined, an installation space is opened inside the limiting tube, the installation space is used for limiting the installation of the locking mechanism, and the cover plate is detachably fixed at the opening of the limiting tube.

[0008] Preferably, the locking mechanism includes a limit block and a clamping bolt, the limit block is detachably mounted inside the limit tube, a through threaded hole is opened in the middle of the limit block, the clamping bolt is installed in the threaded hole by threaded fitting and passes through the cover plate and the outer sleeve.

[0009] Preferably, a plurality of limit strips are arranged in a circular array on the inner wall of the installation space, and a limit groove is provided on the annular end surface of the limit block corresponding to the limit strip, and the limit strip is slidably mounted in the limit groove to limit the movement of the limit block.

[0010] Preferably, the slot is in a V-shaped structure as a whole, and one side of the inclined surface is perpendicular to the clamping bolt and is a gently transitioned inclined surface, while the other side of the inclined surface is parallel to the clamping bolt and is a steep inclined surface.

[0011] Preferably, guide grooves are provided in a circumferential array on the outer ring surface of the sealing ring, guide rods are provided on the inner wall of the outer sleeve corresponding to the guide grooves, and a through anti-interference groove is provided at a position on the sealing ring corresponding to the locking mechanism.

[0012] Preferably, the inner ring end of the sealing ring is in a triangular structure, and the inner ring length of the sealing ring is equal to the length of the supporting tube.

[0013] Beneficial effects:

[0014] 1. Since the locking mechanism is arranged in a circular array on the outer sleeve and is detachably connected to the outer sleeve through a limiting mechanism, the efficiency and convenience of pipeline installation and maintenance can be improved. When replacement is required due to thread stripping, only the locking mechanism needs to be replaced, and the entire system does not need to be replaced, which reduces maintenance costs.

[0015] 2. The bidirectional load-bearing structure can not only evenly distribute the force and prevent damage caused by uneven force, but also provide sufficient strength and stability to ensure the safe operation of the pipeline system.

[0016] 3. The U-shaped ring structure seal can provide excellent sealing effect, prevent the leakage of liquid or gas, and ensure the reliability and environmental protection of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the overall structure of a copper tube quick-connect fitting with a bidirectional load-bearing structure according to the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the locking mechanism and the limiting mechanism in the utility model;

[0020] Figure 3 It is a cross-sectional view of the components of the locking mechanism and the limiting mechanism in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the copper tube installation and use in the utility model;

[0022] Figure 5 This is a cross-sectional view of the copper tube installed and used in the utility model.

[0023] Figure numerals: 1. middle piece; 2. locking mechanism; 3. limiting mechanism; 4. sealing ring; 11. annular plate; 12. bearing tube; 13. outer sleeve; 14. guide rod; 21. limiting block; 22. tightening bolt; 31. limiting tube; 32. cover plate; 33. limiting strip. DETAILED DESCRIPTION

[0024] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0025] Reference below Figure 1-5A copper tube quick-connect fitting with a bidirectional load-bearing structure is described according to an embodiment of the utility model, comprising an intermediate piece 1, a locking mechanism 2 and a sealing ring 4. The intermediate piece 1 is composed of an annular plate 11, a load-bearing tube 12 and an outer sleeve 13. The load-bearing tube 12 and the outer sleeve 13 are each provided with two groups, and the two groups of load-bearing tubes 12 and the outer sleeve 13 are symmetrically arranged on both sides of the annular plate 11 and are both fixedly connected to the annular plate 11. The outer sleeve 13 is sleeved on the outer side of the load-bearing tube 13 for inserting the copper tube. The locking mechanism 2 is arranged in a circular array on the outer sleeve 13, and is detachably connected to the outer sleeve 13 through a limiting mechanism 3. A card slot is arranged at a position corresponding to the locking mechanism 2 on the load-bearing tube 12, which is used to cooperate with the locking mechanism 2 to lock the copper tube. The sealing ring 4 is a U-shaped ring structure, which is used to be sleeved on the end of the copper tube.

[0026] Specifically, the copper tube is inserted into the inner side of the outer sleeve 13, and is guided and protected by the outer sleeve 13. The sealing ring 4 is sleeved on the end of the copper tube to ensure the sealing of the pipe connection and avoid leakage of liquid or gas. The locking mechanism 2 is detachably connected to the outer sleeve 13 through the limiting mechanism 3, ensuring a tight connection between the copper tube and the supporting tube 12. The card groove on the supporting tube 12 cooperates with the locking mechanism 2 to lock the copper tube to ensure the stability and safety of the connection. The supporting tube 12 and the outer sleeve 13 are fixedly connected on both sides of the annular plate 11 to form a stable two-way load-bearing structure, which effectively disperses the transmission and influence of force and ensures the stability of the system. The middleware 1, as the core part of the connection structure, plays a dual role of connection and bearing, ensuring the stable operation of the entire system.

[0027] In this embodiment, since the locking mechanism 2 is arranged in a circular array on the outer sleeve 13 and is detachably connected to the outer sleeve 13 through the limiting mechanism 3, the efficiency and convenience of pipeline installation and maintenance can be improved. When replacement is required in cases of thread stripping, etc., only the locking mechanism 2 needs to be replaced, and there is no need to replace the entire mechanism, which reduces the maintenance cost. Moreover, the bidirectional load-bearing structure can not only evenly distribute the force to prevent damage caused by uneven force, but also provide sufficient strength and stability to ensure the safe operation of the pipeline system. The sealing ring 4 of the U-shaped ring structure can provide an excellent sealing effect to prevent leakage of liquid or gas, thereby ensuring the reliability and environmental protection of the system.

[0028] In a preferred embodiment, the limiting mechanism 3 includes a limiting tube 31 and a cover plate 32. The limiting tube 31 is integrally connected to the outer sleeve 13, and the limiting tube 31 and the outer sleeve 13 are arranged obliquely. An installation space is provided inside the limiting tube 31, and the installation space is used for limiting the installation of the locking mechanism 2. The cover plate 32 is detachably fixed at the opening of the limiting tube 31. During operation, the stability and safety of the locking mechanism 2 in operation are ensured by the setting of the limiting mechanism 3. The oblique setting of the limiting tube 31 can provide an easier way to install or replace the locking mechanism 2. The cover plate 32 is a detachable setting, so that when the locking mechanism 2 needs to be maintained or replaced, the operation is relatively simple and convenient. The integral connection between the limiting tube 31 and the outer sleeve 13 enhances the firmness and durability of the overall structure.

[0029] In a preferred embodiment, the locking mechanism 2 includes a limit block 21 and a clamping bolt 22. The limit block 21 is detachably installed inside the limit tube 31. A through threaded hole is opened in the middle of the limit block 21. The clamping bolt 22 is installed in the threaded hole by threaded fitting and passes through the cover plate 32 and the outer sleeve 13.

[0030] In this embodiment, the limit block 21 is detachably installed inside the limit tube 31 to facilitate its replacement or maintenance. There is a through threaded hole in the middle of the limit block 21, which provides an installation position for the clamping bolt 22. The clamping bolt 22 is installed by threaded cooperation with the threaded hole. The clamping bolt 22 rotates into the threaded hole to clamp the copper tube and make the copper tube bend and deform at the clamping point to increase the stability of the connection. Among them, the clamping bolt 22 and the limit block 21 can be fastened together by threaded cooperation, ensuring the stability of the locking mechanism 2. The detachable design of the limit block 21 and the clamping bolt 22 enables the user to easily perform maintenance, adjustment or replacement, thereby extending the service life of the overall system and reducing potential maintenance costs.

[0031] In a preferred embodiment, a plurality of limit strips 33 are arranged in a circular array on the inner wall of the installation space, and a limit groove corresponding to the limit strip 33 is provided on the annular end face of the limit block 21, and the limit strip 33 is slidably mounted in the limit groove to limit the movement of the limit block 21.

[0032] In a preferred embodiment, the slot is in a V-shaped structure as a whole, and one side of the inclined surface is perpendicular to the clamping bolt 22, which is a gently transitioned inclined surface, and the other side of the inclined surface is parallel to the clamping bolt 22, which is a steep inclined surface. During operation, the steep inclined surface is parallel to the clamping bolt 22, which can effectively reduce the sliding of the copper tube caused by tension and pressure during operation, and increase the stability of the connection, while the gently transitioned inclined surface can make the deformation of the copper tube smoothly transition during the process of removing the copper tube, which is convenient for disassembly.

[0033] In a preferred embodiment, a guide groove is provided in a circumferential array on the outer ring surface of the sealing ring 4, a guide rod 14 is provided on the inner wall of the outer sleeve 13 corresponding to the guide groove, and a through anti-interference groove is provided at a position corresponding to the locking mechanism 2 on the sealing ring 4. During operation, the setting of the anti-interference groove can reduce the interference of the sealing ring 4 on the deformation of the copper tube caused by extrusion, and the setting of the guide groove and the guide rod 14 can enable the sealing ring 4 to be installed in a fixed position, ensuring that the anti-interference groove is in the correct position.

[0034] In a preferred embodiment, the inner ring end of the sealing ring 4 is in a triangular structure, and the inner ring length of the sealing ring 4 is equal to the length of the supporting tube 12. During operation, the two sides of the triangular structure respectively press against the inner wall of the copper tube and the end face of the supporting tube 12, further increasing the sealing effect of the sealing ring.

[0035] In a specific implementation manner: the copper tube is inserted into the inner side of the outer sleeve 13, and is guided and protected by the outer sleeve 13. The sealing ring 4 is sleeved on the end of the copper tube to ensure the sealing of the pipe connection and avoid leakage of liquid or gas. The locking mechanism is detachably connected to the outer sleeve 13 through the limiting mechanism 3, ensuring the tight connection between the copper tube and the load-bearing tube 12. The card groove on the load-bearing tube 12 cooperates with the locking mechanism 2 to lock the copper tube to ensure the stability and safety of the connection. The load-bearing tube 12 and the outer sleeve 13 are fixedly connected to both sides of the annular plate 11 to form a stable two-way load-bearing structure, which effectively disperses the transmission and influence of force and ensures the stability of the system. The middle piece 1, as the core part of the connection structure, plays a dual role of connection and bearing, ensuring the stable operation of the entire system. Since the locking mechanism 2 is arranged in a circular array on the outer sleeve 13 and is detachably connected to the outer sleeve 13 through the limiting mechanism 3, the efficiency and convenience of pipeline installation and maintenance can be improved. When replacement is required in the case of thread stripping, only the locking mechanism 2 needs to be replaced, and the entire system does not need to be replaced. The body can be replaced, which reduces the maintenance cost. The bidirectional bearing structure can not only evenly distribute the force to prevent damage caused by uneven force, but also provide sufficient strength and stability to ensure the safe operation of the pipeline system. The sealing ring 4 of the U-shaped ring structure can provide excellent sealing effect to prevent leakage of liquid or gas, and ensure the reliability and environmental protection of the system. Among them, the limit block 21 can be detachably installed in the interior of the limit tube 31, which is convenient for its replacement or maintenance. There is a through threaded hole in the middle of the limit block 21, which provides an installation position for the clamping bolt 22. The clamping bolt 22 is installed by threaded cooperation with the threaded hole. The clamping bolt 22 is rotated into the threaded hole to clamp the copper pipe, and the copper pipe is bent and deformed at the clamping position, thereby increasing the stability of the connection. Among them, the clamping bolt 22 and the limit block 21 can be fastened together by threaded cooperation, ensuring the stability of the locking mechanism 2. The detachable design of the limit block 21 and the clamping bolt 22 enables users to easily perform maintenance, adjustment or replacement, thereby extending the service life of the overall system and reducing potential maintenance costs.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A copper tube quick-connect fitting with a bidirectional load-bearing structure, characterized in that: include: An intermediate component (1), the intermediate component (1) being composed of an annular plate (11), a supporting tube (12) and an outer sleeve (13), wherein the supporting tube (12) and the outer sleeve (13) are each provided with two groups, the two groups of the supporting tube (12) and the outer sleeve (13) being symmetrically arranged on both sides of the annular plate (11) and both being fixedly connected to the annular plate (11), the outer sleeve (13) being sleeved on the outer side of the supporting tube (12) and used for inserting the copper tube; A locking mechanism (2), wherein the locking mechanism (2) is arranged in a circumferential array on the outer sleeve (13) and is detachably connected to the outer sleeve (13) via a limiting mechanism (3); and a slot is arranged at a position on the supporting tube (12) corresponding to the locking mechanism (2) for cooperating with the locking mechanism (2) to lock the copper tube; The sealing ring (4) is a U-shaped ring structure and is used to be sleeved on the end of the copper tube.

2. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 1, characterized in that: The limiting mechanism (3) comprises a limiting tube (31) and a cover plate (32); the limiting tube (31) is integrally connected to the outer sleeve (13), and the limiting tube (31) and the outer sleeve (13) are arranged obliquely; an installation space is provided inside the limiting tube (31), and the installation space is used for limiting and installing the locking mechanism (2); the cover plate (32) is detachably fixedly installed at the opening of the limiting tube (31).

3. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 2, characterized in that: The locking mechanism (2) comprises a limit block (21) and a clamping bolt (22); the limit block (21) is detachably mounted inside the limit tube (31); a threaded hole is provided in the middle of the limit block (21); the clamping bolt (22) is mounted in the threaded hole by means of threaded engagement and passes through the cover plate (32) and the outer sleeve (13).

4. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 3, characterized in that: A plurality of limit strips (33) are arranged in a circular array on the inner wall of the installation space, and a limit groove corresponding to the limit strip (33) is provided on the annular end surface of the limit block (21), and the limit strip (33) is slidably mounted in the limit groove to limit the movement of the limit block (21).

5. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 4, characterized in that: The clamping groove is in a V-shaped structure as a whole, and one side of the inclined surface is perpendicular to the clamping bolt (22) and is a gently transitioned inclined surface, while the other side of the inclined surface is parallel to the clamping bolt (22) and is a steep inclined surface.

6. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 5, characterized in that: The outer ring surface of the sealing ring (4) is provided with guide grooves in a circumferential array, the inner wall of the outer sleeve (13) is provided with guide rods (14) corresponding to the guide grooves, and the sealing ring (4) is provided with a through anti-interference groove at a position corresponding to the locking mechanism (2).

7. The copper tube quick-connect fitting with a bidirectional load-bearing structure according to claim 6, characterized in that: The inner ring end of the sealing ring (4) is in a triangular structure, and the inner ring length of the sealing ring (4) is equal to the length of the supporting tube (12).

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