Quick locking joint for PVC (polyvinyl chloride) pipeline

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a PVC pipeline quick locking connector which comprises a first connector and a second connector, fixing blocks are fixedly connected to the front side and the rear side of the outer surface of the first connector, and locking pieces are fixedly connected to the front side and the rear side of the outer surface of the second connector. The two locking pieces are symmetrically arranged in the front-back direction and correspond to the two fixing blocks in position. According to the quick locking joint for the PVC pipeline, extra mechanical stability is provided by utilizing extra pressure generated by the locking rod, so that the first connecting joint and the second connecting joint can be firmly connected even in a high-pressure or vibration environment, the long-term reliability of a system is ensured, the mounting process is simplified, and the cost is reduced. According to the invention, the material and labor cost is reduced, the economic benefit is higher, the construction efficiency is greatly improved, the quick locking or releasing of the pipeline joint can be realized, and the maintenance personnel can easily check and adjust the pipeline connection.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, and particularly relates to a quick locking joint for PVC pipelines. Background Technique

[0002] In traditional PVC pipeline connection technologies, the most commonly used methods include using glue bonding, flange connection or hot melt welding. Although these traditional methods meet the pipeline connection requirements to a certain extent, there are some significant drawbacks in actual applications: 1. When using glue bonding or hot melt welding, it is necessary to wait for a certain period of time to ensure that the connection part is completely cured or cooled, which greatly prolongs the construction period and reduces work efficiency; 2. Once the pipeline connection is completed, whether it is glue bonding or hot melt welding, it is very difficult to disassemble and reconnect, which brings great inconvenience to the later pipeline maintenance, inspection and replacement. Therefore, we propose a quick locking joint for PVC pipelines. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a quick locking joint for PVC pipelines, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A quick locking joint for PVC pipelines includes a first connection joint and a second connection head. Both the front and rear sides of the outer surface of the first connection joint are fixedly connected with fixing blocks. Both the front and rear sides of the outer surface of the second connection head are fixedly connected with locking members, and the two locking members are symmetrically arranged front and back. The positions of the two locking members correspond to those of the two fixing blocks;

[0006] The locking member includes a fixing plate which is fixedly connected with the outer surface of the second connection head. An adjusting screw is inserted through the middle of the fixing plate, and the adjusting screw is threadedly connected with the fixing plate. One end of the adjusting screw close to the fixing block is movably installed with a mounting seat through a bearing. A locking rod is movably installed in the mounting seat. Pressing blocks are integrally formed at the opposite ends of the two locking rods.

[0007] Preferably, the width of the pressing block is greater than the width of the locking rod.

[0008] By adopting the above technical solution: Since the width of the pressing block is greater than the width of the locking rod, when the locking rod enters the card slot of the fixing block, the pressing block will generate an outward pressure on the fixing block, thereby tightly connecting the first connection joint and the second connection head together.

[0009] Preferably, the first connecting joint includes a first connecting sleeve, and a snap ring is integrally formed at one end of the first connecting sleeve close to the second connecting head. Four grooves are arranged in an annular array on the outer surface of the snap ring.

[0010] By adopting the above technical solution: the tightness of the connection between the snap ring and the second connecting head is improved.

[0011] Preferably, the fixing block is fixedly connected to the first connecting sleeve, and a clamping groove adapted to the width of the locking rod is arranged at one end of the fixing block away from the first connecting sleeve.

[0012] By adopting the above technical solution: the locking rod can be clamped in the clamping groove and the pressing block is located at one end of the clamping groove for limiting.

[0013] Preferably, the second connecting head includes a second connecting sleeve, a connecting groove adapted to the size of the snap ring is arranged on the inner surface of the second connecting sleeve, and a convex block adapted to the size of the groove is integrally formed on the inner surface of the connecting groove.

[0014] By adopting the above technical solution: through the cooperation of the snap ring and the connecting groove, the first connecting joint and the second connecting head can be initially butted, the operation is convenient, and the structure is simple.

[0015] Preferably, a sealing gasket is fixedly connected in the connecting groove.

[0016] By adopting the above technical solution: the high tightness of the pipeline connection is further ensured.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. Through the cooperation of the snap ring and the connecting groove, the first connecting joint and the second connecting head can be initially butted. By using the additional pressure generated by the locking rod, additional mechanical stability is provided, so that the first connecting joint and the second connecting head can maintain a firm connection even in a high-pressure or vibrating environment, ensuring the long-term reliability of the system, simplifying the installation process, reducing material and labor costs, having higher economic benefits, and greatly improving the construction efficiency.

[0019] 2. By simply rotating the adjusting screw, the quick locking or release of the pipeline joint can be realized. Maintenance personnel can easily check and adjust the pipeline connection. At the same time, the use of the sealing gasket further ensures the high tightness of the pipeline connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a PVC pipeline quick-locking joint of the utility model;

[0021] Figure 2This is a schematic diagram of the composition structure of a quick-locking joint for a PVC pipe of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first connecting joint of a quick-locking joint for a PVC pipe of the present utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the second connecting head and the locking member of a quick-locking joint for a PVC pipe of the present utility model.

[0024] In the figure: 1. The first connecting joint; 11. The first connecting sleeve; 12. The snap ring; 13. The groove; 2. The second connecting head; 21. The second connecting sleeve; 22. The connecting groove; 23. The convex block; 24. The gasket; 3. The fixed block; 31. The card slot; 4. The locking member; 41. The fixing plate; 42. The adjusting screw; 43. The mounting seat; 44. The locking rod; 45. The pressing block; 5. The main body of the PVC pipe. Specific embodiments

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0029] A quick-locking joint for PVC pipes, comprising a first connecting joint 1 and a second connecting head 2. Fixed blocks 3 are fixedly connected to both the front and rear sides of the outer surface of the first connecting joint 1. Locking members 4 are fixedly connected to both the front and rear sides of the outer surface of the second connecting head 2, and the two locking members 4 are symmetrically arranged front and rear. The positions of the two locking members 4 correspond to those of the two fixed blocks 3.

[0030] In this embodiment, the locking member 4 includes a fixing plate 41 fixedly connected to the outer surface of the second connecting head 2. An adjusting screw 42 is inserted through the middle of the fixing plate 41, and the adjusting screw 42 is threadedly connected to the fixing plate 41. One end of the adjusting screw 42 close to the fixed block 3 is movably installed with a mounting seat 43 through a bearing. A locking rod 44 is movably installed in the mounting seat 43. Pressing blocks 45 are integrally formed at the opposite ends of the two locking rods 44; the width of the pressing block 45 is greater than the width of the locking rod 44; the fixed block 3 is fixedly connected to the first connecting sleeve 11, and a card slot 31 adapted to the width of the locking rod 44 is provided at one end of the fixed block 3 away from the first connecting sleeve 11.

[0031] Through the above solution: By using the additional pressure generated by the locking rod 44, additional mechanical stability is provided, enabling the first connecting joint 1 and the second connecting head 2 to maintain a firm connection even in high-pressure or vibrating environments, ensuring the long-term reliability of the system, simplifying the installation process, reducing material and labor costs, having higher economic benefits, and greatly improving the construction efficiency.

[0032] In this embodiment, the first connecting joint 1 includes a first connecting sleeve 11. A snap ring 12 is integrally formed at one end of the first connecting sleeve 11 close to the second connecting head 2. Four grooves 13 are arranged in a circular array on the outer surface of the snap ring 12; the second connecting head 2 includes a second connecting sleeve 21. A connecting groove 22 adapted to the size of the snap ring 12 is provided on the inner surface of the second connecting sleeve 21. Protrusions 23 adapted to the size of the grooves 13 are integrally formed on the inner surface of the connecting groove 22; a sealing gasket 24 is fixedly connected in the connecting groove 22.

[0033] Through the above solution: By the cooperation of the snap ring 12 and the connecting groove 22, the first connecting joint 1 and the second connecting head 2 can be initially butted, with convenient operation and simple structure. At the same time, the use of the sealing gasket 24 further ensures the high sealing performance of the pipe connection.

[0034] It should be noted that the present utility model is a quick-locking joint for PVC pipes. During use, the first connecting joint 1 and the second connecting head 2 are respectively fixedly connected to two PVC pipe bodies 5. Then, the first connecting joint 1 and the second connecting head 2 are butted. The snap ring 12 on the first connecting sleeve 11 will be embedded in the connecting groove 22 of the second connecting sleeve 21. At this time, the groove 13 on the snap ring 12 cooperates with the protrusion 23 in the connecting groove 22 to form a preliminary positioning. Then, the operator rotates the adjusting screw 42. Since the adjusting screw 42 is threadedly connected to the fixing plate 41, rotating it pushes the mounting seat 43 and the locking rod 44 inside it towards the fixing block 3. Since the width of the pressing block 45 is greater than the width of the locking rod 44, when the locking rod 44 enters the card slot 31 of the fixing block 3, the pressing block 45 will exert an outward pressure on the fixing block 3, thereby tightly connecting the first connecting joint 1 and the second connecting head 2 together, improving the firmness of the connection between the two PVC pipe bodies 5. At the same time, the gasket 24 between the first connecting joint 1 and the second connecting head 2 improves the sealing performance between the two PVC pipe bodies 5, thereby ensuring the stability of the connection of the PVC pipe body 5.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC pipe quick locking joint, characterized in that: It comprises a first connecting joint (1) and a second connecting head (2), wherein the outer surface of the first connecting joint (1) is fixedly connected to fixing blocks (3) on both the front and rear sides, and the outer surface of the second connecting head (2) is fixedly connected to locking members (4) on both the front and rear sides, and the two locking members (4) are symmetrically arranged front and rear, and the positions of the two locking members (4) and the two fixing blocks (3) correspond; The locking member (4) comprises a fixing plate (41), the fixing plate (41) being fixedly connected to the outer surface of the second connector (2), an adjusting screw (42) being inserted and connected in the middle of the fixing plate (41), and the adjusting screw (42) being threadedly connected to the fixing plate (41), an end of the adjusting screw (42) close to the fixing block (3) being movably mounted with a mounting seat (43) via a bearing, a locking rod (44) being movably mounted in the mounting seat (43), and a pressing block (45) being integrally formed at opposite ends of the two locking rods (44).

2. A PVC pipe quick locking connector according to claim 1, characterized in that: The width of the pressing block (45) is greater than the width of the locking rod (44).

3. A PVC pipe quick locking joint according to claim 1, characterized in that: The No. 1 connecting joint (1) comprises a No. 1 connecting sleeve (11), an end of the No. 1 connecting sleeve (11) close to the No. 2 connecting head (2) is integrally formed with a clamping ring (12), and the outer surface of the clamping ring (12) is provided with four grooves (13) in a ring array.

4. A PVC pipe quick-locking joint according to claim 1, characterized in that: The fixing block (3) is fixedly connected to the No. 1 connecting sleeve (11), and a slot (31) matching the width of the locking rod (44) is provided at one end of the fixing block (3) away from the No. 1 connecting sleeve (11).

5. The PVC pipe quick-locking joint according to claim 1, characterized in that: The No. 2 connector (2) comprises a No. 2 connecting sleeve (21), the inner surface of the No. 2 connecting sleeve (21) being provided with a connecting groove (22) matching the size of the clamping ring (12), and the inner surface of the connecting groove (22) being integrally formed with a protrusion (23) matching the size of the groove (13).

6. A PVC pipe quick-locking joint according to claim 5, characterized in that: A sealing gasket (24) is fixedly connected in the connection groove (22).

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