Easily detachable PVC pipe joint

Abstract

This utility model discloses an easy-to-disassemble PVC pipe fitting, relating to the field of PVC pipe structure technology. It includes a PVC pipe and a fitting assembly disposed at one end of the PVC pipe. The fitting assembly includes an externally threaded sleeve and an internally threaded sleeve disposed at one end of the fitting assembly. The inner wall of one end of the internally threaded sleeve is threadedly connected to the outer wall of one end of the externally threaded sleeve. A disassembly ring is fixedly fitted onto the outer wall of the internally threaded sleeve. A disassembly lever assembly is provided on the inner wall of the disassembly ring. The disassembly lever assembly is used to rotate the internally threaded sleeve relative to the outer wall of the externally threaded sleeve. This utility model, by setting a disassembly ring and its cooperating disassembly lever and installation lever, utilizes the lever principle (with a positioning stop as a fulcrum) to easily drive the internally threaded sleeve to rotate without additional tools. This solves the problems of laborious manual tightening / loosening and difficult operation in space-constrained areas associated with traditional PVC pipe fittings, significantly improving installation and disassembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe structure technology, specifically to an easy-to-disassemble PVC pipe joint. Background Technology

[0002] (Find the subject matter of this application document, which is related to the second paragraph, so that the second paragraph can directly introduce the existing problem. If there is a comparative example, divide it into three paragraphs, with the comparative example introduced in the middle.)

[0003] (Based on the above introduction, we will discuss the environments and circumstances in which the above devices or structures are needed, and what specific problems might arise in those environments.) Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an easy-to-assemble and disassemble PVC pipe fitting. Through an innovative design of the threaded engagement structure of the external threaded sleeve and the internal threaded sleeve, combined with an adaptive sealing and fastening structure of the compensating groove and the fastening cone, the problems of unreliable sealing and insufficient fastening force in traditional fittings are solved. Simultaneously, through a lever-type disassembly and assembly assembly consisting of a disassembly ring, a disassembly lever, an installation lever, and a positioning stop rod, the problems of laborious manual tightening / loosening, reliance on tools, and difficulty in operation in space-constrained areas are solved, achieving efficient disassembly and assembly and reliable connection of the PVC pipe fitting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-disassemble PVC pipe joint, comprising a PVC pipe;

[0006] A connector assembly disposed at one end of a PVC pipe, the connector assembly including an external threaded sleeve;

[0007] An internal threaded sleeve is provided at one end of the connector assembly, wherein the inner wall of one end of the internal threaded sleeve is threadedly connected to the outer wall of one end of the external threaded sleeve.

[0008] A disassembly collar is fixedly fitted onto the outer wall of an internally threaded sleeve. The inner wall of the disassembly collar is provided with a disassembly and assembly lever assembly. The disassembly and assembly lever assembly is used to rotate the internally threaded sleeve around the outer wall of the externally threaded sleeve. The inner wall of the disassembly collar is respectively provided with a disassembly lever and an assembly lever.

[0009] As a preferred embodiment of this utility model, one end of the disassembly lever is provided with a matching groove, and the inner wall of the disassembly collar is fixedly connected with a positioning stop rod that matches the matching groove, and the inner wall of the matching groove is movably connected with the outer wall of the positioning stop rod.

[0010] As a preferred embodiment of this utility model, a return spring is fixedly connected to the bottom surface of the disassembly lever, and the bottom end of the return spring is fixedly connected to the bottom of the inner wall of the disassembly collar.

[0011] As a preferred embodiment of this invention, the bottom surface of the disassembly lever near one end is provided with a toggle groove.

[0012] As a preferred embodiment of this utility model, both ends of the external threaded sleeve are provided with compensation grooves, and the number of internal threaded sleeves is two sets, with the two sets of internal threaded sleeves symmetrically distributed at both ends of the external threaded sleeve.

[0013] As a preferred embodiment of this invention, a fastening cone is fixedly connected to the end of the internal threaded sleeve away from the disassembly collar.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a disassembly collar and a disassembly lever and an installation lever that work together with it, utilizes the lever principle (with the positioning stop as the fulcrum) to easily drive the internal threaded sleeve to rotate without additional tools. This solves the problems of manual tightening / loosening of traditional PVC pipe joints being laborious and difficult to operate in space-constrained areas, and greatly improves the efficiency of installation and disassembly.

[0016] 2. This utility model uses the compensation grooves at both ends of the external threaded sleeve to cooperate with the fastening cone at the end of the internal threaded sleeve. During the threaded connection process, the fastening cone squeezes the end of the external threaded sleeve, causing it to shrink along the compensation groove, forming a tight wrap around the outer wall of the PVC pipe. Compared with the traditional sealing method that relies on PTFE tape, the sealing effect is more stable, and the fastening force can be adaptively adjusted according to the tightness of the thread, effectively avoiding media leakage.

[0017] 3. This utility model ensures that the disassembly lever is stably reset in the non-operational state by connecting it to the disassembly collar via a return spring, thus preventing loosening. The threaded fit structure between the external threaded sleeve and the internal threaded sleeve has high strength and can maintain reliable connection performance even after multiple disassemblies and reassemblies, extending the service life of the connector.

[0018] 4. This utility model uses two sets of internal threaded sleeves symmetrically distributed at both ends of the external threaded sleeve to simultaneously connect two PVC pipes. Furthermore, through the lever effect of the lever assembly, it can still operate efficiently in narrow spaces or in scenarios with limited operation, making it suitable for multiple fields such as water supply and drainage and construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal threaded sleeve structure of this utility model;

[0022] Figure 4This is a schematic diagram showing the detailed structure of the disassembly lever of this utility model.

[0023] In the diagram: 1. PVC pipe; 2. Connector assembly; 4. External threaded sleeve; 5. Compensation groove; 6. Internal threaded sleeve; 7. Removal collar; 8. Fastening cone; 9. Removal lever; 10. Installation lever; 11. Actuation groove; 12. Adaptive groove; 13. Positioning stop rod; 14. Return spring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1-4 This is the first embodiment of the present invention, which provides an easy-to-disassemble PVC pipe joint, including a PVC pipe 1;

[0030] A connector assembly 2 is provided at one end of the PVC pipe 1. The connector assembly 2 includes an external threaded sleeve 4.

[0031] An internal threaded sleeve 6 is provided at one end of the connector assembly 2, and the inner wall of one end of the internal threaded sleeve 6 is threadedly connected to the outer wall of one end of the external threaded sleeve 4.

[0032] A disassembly collar 7 is fixedly sleeved on the outer wall of the internal threaded sleeve 6. The inner wall of the disassembly collar 7 is provided with a disassembly and assembly lever assembly. The disassembly and assembly lever assembly is used to rotate the internal threaded sleeve 6 on the outer wall of the external threaded sleeve 4. The inner wall of the disassembly collar 7 is respectively equipped with a disassembly lever 9 and an installation lever 10.

[0033] Specifically, by setting up a disassembly collar 7 and its matching disassembly lever 9 and installation lever 10, and using the lever principle to position the stop rod 13 as a fulcrum, the internal threaded sleeve 6 can be easily driven to rotate without additional tools. This solves the problems of manual tightening / loosening of traditional PVC pipe fittings being laborious and difficult to operate in space-constrained areas, and greatly improves the efficiency of installation and disassembly.

[0034] Example 2

[0035] The second embodiment of this utility model provides a technical solution: one end of the disassembly lever 9 is provided with an adaptation groove 12, and the inner wall of the disassembly collar 7 is fixedly connected with a positioning stop rod 13 that is adapted to the adaptation groove 12, and the inner wall of the adaptation groove 12 is movably connected to the outer wall of the positioning stop rod 13.

[0036] A return spring 14 is fixedly connected to the bottom surface of the disassembly lever 9, and the bottom end of the return spring 14 is fixedly connected to the bottom of the inner wall of the disassembly collar 7.

[0037] A toggle groove 11 is provided on the bottom surface of the disassembly lever 9 near one end.

[0038] Specifically, by disassembling the lever 9 and connecting it to the disassembly collar 7 via the return spring 14, the lever is ensured to return to its stable position when not in operation, thus preventing loosening. The threaded fit structure between the external threaded sleeve 4 and the internal threaded sleeve 6 has high strength and can maintain reliable connection performance even after multiple disassemblies and reassemblies, thus extending the service life of the connector.

[0039] Example 3

[0040] The third embodiment of this utility model provides a technical solution: Both ends of the external threaded sleeve 4 are provided with compensation grooves 5, and the number of internal threaded sleeves 6 is two sets, symmetrically distributed at both ends of the external threaded sleeve 4. A fastening cone 8 is fixedly connected to the end of the internal threaded sleeve 6 furthest from the disassembly collar 7.

[0041] Example 4

[0042] The fourth embodiment of this utility model provides a technical solution: the external threaded sleeve 4, the internal threaded sleeve 6, and the disassembly collar 7 are made of PVC-U material reinforced with glass fiber (glass fiber content of 10% to 15%) to improve the strength and wear resistance of the thread structure and avoid thread stripping after long-term use.

[0043] The disassembly lever 9 and the installation lever 10 are made of acrylonitrile-butadiene-styrene copolymer (ABS), which has good toughness and impact resistance and is easy to process and mold.

[0044] The return spring 14 is made of 304 stainless steel, which has corrosion resistance and good elastic recovery performance, ensuring stable return even after long-term use.

[0045] The positioning rod 13 is made of polyoxymethylene (POM) material, which has self-lubricating properties and reduces friction and wear when it mates with the matching groove 12.

[0046] Working principle:

[0047] The working process of this easy-to-install PVC pipe fitting mainly includes two stages: installation and disassembly, as detailed below:

[0048] Installation Stage: First, the two sets of internal threaded sleeves 6 are respectively fitted onto the joint ends of the two PVC pipes 1 to be connected; then, the joint ends of the two PVC pipes 1 are respectively inserted into the two ends of the external threaded sleeves 4, so that the two PVC pipes 1 are initially connected; next, by rotating the internal threaded sleeves 6, its inner wall is connected to the outer wall of the external threaded sleeves 4 through threaded engagement. During this process, the fastening cone 8 fixedly connected to the end of the internal threaded sleeve 6 away from the disassembly ring 7 gradually applies pressure to the end of the external threaded sleeve 4; since the two ends of the external threaded sleeves 4 have compensation grooves 5, under the pressure of the fastening cone 8, the end of the external threaded sleeves 4 will shrink along the compensation grooves 5, thereby tightly wrapping and fastening the outer wall of the PVC pipe 1, realizing the sealing and fixation between the PVC pipe 1 and the external threaded sleeves 4.

[0049] If excessive friction or space constraints make it difficult to apply force during manual tightening of the internal threaded sleeve 6, the disassembly lever 9 can be used for auxiliary operation: apply external force to the disassembly groove 11 to lift the disassembly lever 9 upward with the rotation connection point with the disassembly collar 7 as the fulcrum. At this time, the return spring 14 on the bottom surface of the disassembly lever 9 is stretched. During the rotation of the disassembly lever 9, the matching groove 12 at one end contacts the positioning stop 13 fixed to the inner wall of the disassembly collar 7 and forms a limit. With the support of the positioning stop 13, a lever structure is formed. Through the other end of the disassembly lever 9, torque is transmitted to the disassembly collar 7, thereby driving the internal threaded sleeve 6 to rotate further and tighten against the outer wall of the external threaded sleeve 4, completing the secondary tightening.

[0050] Disassembly stage: By moving the installation lever 10, the disassembly collar 7 causes the internal threaded sleeve 6 to rotate in the opposite direction along the outer wall of the external threaded sleeve 4. The threaded engagement between the internal threaded sleeve 6 and the external threaded sleeve 4 gradually loosens, the pressure of the fastening cone 8 on the end of the threaded sleeve 4 is released, and the end of the external threaded sleeve 4 returns to its original shape along the compensation groove 5, no longer fastening the outer wall of the PVC pipe 1. At this time, the PVC pipe 1 can be pulled out from both ends of the external threaded sleeve 4, completing the disassembly. After disassembly, the disassembly lever 9 returns to its initial position under the elastic force of the return spring 14, and the fitting groove 12 and the positioning stop rod 13 re-engage and position themselves.

[0051] In summary: By setting up the disassembly collar 7 and its matching disassembly lever 9 and installation lever 10, and utilizing the lever principle (with the positioning stop 13 as the fulcrum), the internal threaded sleeve 6 can be easily driven to rotate without additional tools. This solves the problems of manual tightening / loosening of traditional PVC pipe fittings being laborious and difficult to operate in space-constrained areas, and greatly improves the efficiency of installation and disassembly.

[0052] The reset spring, external threaded sleeve, and internal threaded sleeve used in this application can be additionally fitted with protective measures of common knowledge in the field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0053] It should be noted that the reset spring, external threaded sleeve and internal threaded sleeve are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method and other methods of the device, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0054] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0055] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0056] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An easy-to-disassemble PVC pipe fitting, characterized in that: Including PVC pipe (1); A connector assembly (2) is provided at one end of a PVC pipe (1), the connector assembly (2) including an external threaded sleeve (4); An internal threaded sleeve (6) is provided at one end of the connector assembly (2), and the inner wall of one end of the internal threaded sleeve (6) is threadedly connected to the outer wall of one end of the external threaded sleeve (4). A disassembly collar (7) is fixedly sleeved on the outer wall of the internal threaded sleeve (6). The inner wall of the disassembly collar (7) is provided with a disassembly and assembly lever assembly. The disassembly and assembly lever assembly is used to rotate the internal threaded sleeve (6) on the outer wall of the external threaded sleeve (4). The inner wall of the disassembly collar (7) is respectively provided with a disassembly lever (9) and an installation lever (10).

2. The easily detachable PVC pipe fitting according to claim 1, characterized in that: One end of the disassembly lever (9) is provided with an adaptation groove (12), and the inner wall of the disassembly collar (7) is fixedly connected with a positioning stop rod (13) that matches the adaptation groove (12). The inner wall of the adaptation groove (12) is movably connected to the outer wall of the positioning stop rod (13).

3. The easily detachable PVC pipe fitting according to claim 1, characterized in that: A return spring (14) is fixedly connected to the bottom surface of the disassembly lever (9), and the bottom end of the return spring (14) is fixedly connected to the bottom of the inner wall of the disassembly collar (7).

4. The easily detachable PVC pipe fitting according to claim 1, characterized in that: The bottom surface of the disassembly lever (9) near one end is provided with a toggle groove (11).

5. The easily detachable PVC pipe fitting according to claim 1, characterized in that: The external threaded sleeve (4) has a compensation groove (5) at both ends. There are two sets of internal threaded sleeves (6), and the two sets of internal threaded sleeves (6) are symmetrically distributed at both ends of the external threaded sleeve (4).

6. The easily detachable PVC pipe fitting according to claim 1, characterized in that: The end of the internal threaded sleeve (6) away from the disassembly collar (7) is fixedly connected to a fastening cone (8).

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