A locking device for splicing plastic water pipe frames

Abstract

This utility model belongs to the field of fastener technology and provides a locking device for splicing plastic water pipe frames. Plastic water pipes and pipe fittings can be combined to create various types of household items, such as bookshelves, shoe racks, and pet supplies like cat cages and cat trees. However, traditional methods of fixing plastic water pipes and fittings involve either heat fusion or adhesive bonding, which are difficult to change once fixed and require specialized tools, making them unsuitable for everyday use by the general consumer. This utility model provides a locking device for splicing plastic water pipe frames, installed inside the straight pipe end. The locking function is achieved by popping out from pre-drilled holes at corresponding positions on the straight pipe and fitting, and it can be repeatedly disassembled and reassembled. This utility model utilizes existing plastic water pipe parts resources on the market, broadening the applications of plastic water pipes and reducing the waste of repeated molding for frame-type items.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, specifically relating to a locking device for splicing plastic water pipe frames. Background Technology

[0002] Plastic water pipes and fittings are inexpensive, environmentally friendly, and produced by numerous manufacturers. A wide variety of fittings are available, making them particularly suitable for assembling frame-like everyday items such as bookshelves, shoe racks, and pet supplies like cat cages and cat trees. However, to achieve a complete seal, the connection between water pipes and fittings typically uses heat fusion or adhesive, requiring specialized tools or glue. Once fixed, these connections cannot be altered, making them unsuitable for everyday use (while some pipes and fittings are threaded and detachable, it's impossible to simultaneously tighten both ends of multiple interconnected pipes). When using water pipes and fittings to assemble frame-like everyday items, a high degree of pipe sealing is not required; only sturdiness and durability are needed. To address these issues, the applicant proposes a locking device for assembling plastic water pipe frames. This device functions as a fastener, using holes drilled at corresponding positions on the water pipes and fittings to securely fix the assembled frame. It can be repeatedly disassembled, simplifying the assembly process and developing a new application for plastic water pipe components. Utility Model Content

[0003] The purpose of this utility model can be achieved through the following technical solution: a locking device for splicing plastic water pipe frames, including a horizontal "U"-shaped spring-loaded component 1 and upper and lower locking posts 2 extending vertically from its two ends, as well as a baffle 3 and a connecting strip 4. This locking device for splicing plastic water pipe frames requires drilling holes 5 in the upper and lower locking posts at corresponding positions on the straight pipe and the connector to be used. The horizontal "U"-shaped spring-loaded component 1 and the upper and lower locking posts 2 are inserted from the straight pipe end. During insertion, the upper and lower locking posts 2 must be pressed down and aligned with the holes 5. When the water pipe is fully inserted, the upper and lower locking posts 2 will pop out from the upper and lower locking post holes 5 of the water pipe straight pipe. At this time, align the protruding locking post 2 at the end of the water pipe straight pipe with the upper and lower locking post holes 5 of the connector, and insert the straight pipe end into the connector. At the same time, press the upper and lower locking posts 2 into the connector. When they are inserted into the upper and lower locking post holes 5 of the connector, the upper and lower locking posts 2 will automatically pop out from the connector surface, completing the splicing and locking of the water pipe straight pipe and the connector. Repeat this operation multiple times. By combining the water pipe straight pipe with different connectors, you can assemble various styles of frame-like items with locking mechanisms.

[0004] Furthermore, the height of the horizontal "U"-shaped spring-loaded component 1 is equal to the inner diameter of the straight water pipe, allowing it to be inserted precisely into the port of the straight water pipe. Both the straight water pipe and the connector have a wall thickness of 2 mm. The two upper and lower retaining posts 2 are cylinders of the same shape but opposite directions, each extending 7 mm upwards (downwards) from the horizontal "U"-shaped spring-loaded component 1. The connecting strip 4 connects the horizontal "U"-shaped spring-loaded component 1 and the baffle 3. During installation, first align the upper and lower retaining posts 2 with the upper and lower retaining post holes 5 at the port of the straight pipe in a straight line. Then insert the horizontal "U"-shaped spring-loaded component 1 into the port of the straight water pipe and press down on both... Insert the upper and lower locking pins 2 into the water pipe together, and then push the baffle 3 inward to the bottom. At this time, the upper and lower locking pins 2 will pop out from the upper and lower locking pin holes 5 of the straight pipe and protrude 5 mm from the surface of the straight pipe. Then, align the straight pipe end with the upper and lower locking pins 2 installed with the upper and lower locking pin holes 5 of the connector and insert them into the connector together. When they are inserted to the bottom, the upper and lower locking pins 2 are exactly aligned with the position of the upper and lower locking pin holes 5 of the connector. The upper and lower locking pins 2 will automatically pop out from the upper and lower locking pin holes 5 of the connector and protrude 3 mm from the surface of the connector, thus completing the locking. At this time, simply applying force outward cannot separate the straight water pipe and the connector.

[0005] Furthermore, the two upper and lower buckle posts 2 are cylinders with a diameter of 5 mm and a height of 7 mm. The tail of the post is connected to the two ports of the horizontal "U"-shaped spring piece 1. The top of the post is 2 mm in a semi-circular arc. After the water pipe straight pipe and the connector are spliced ​​and locked, the 3 mm height protruding from the surface of the connector is such that only 1 mm of the buckle post is stuck to the connector due to the 2 mm at the top being a semi-circular arc. At this time, we press inward to sink the body of the upper and lower buckle posts 2 into the water pipe and at the same time forcefully separate the water pipe straight pipe and the connector to release the force on the buckle post, thereby pulling out the water pipe straight pipe.

[0006] Furthermore, the baffle 3 is connected to the horizontal "U"-shaped spring member 1 via the connecting strip 4. The connection point is located at the center of the baffle 3 and the horizontal "U"-shaped spring member 1. The diameter of the baffle 3 is slightly smaller than the outer diameter of the straight water pipe but larger than the inner diameter of the straight water pipe. During installation, after the horizontal "U"-shaped spring member 1 and the upper and lower retaining posts 2 are fully inserted into the straight water pipe, the baffle 3 needs to be pushed further in so that the upper and lower retaining posts 2 reach the upper and lower retaining post holes 5 of the straight water pipe. If the upper and lower retaining posts 2 and the upper and lower retaining post holes 5 of the straight water pipe are not aligned... The upper and lower locking pins 2 can be rotated by twisting the baffle 3. The installed upper and lower locking pins 2 pop out from the upper and lower locking pin holes 5 of the water pipe straight pipe. The baffle 3 blocks the water pipe straight pipe end and is inserted into the connector together with the straight pipe end. When it is inserted to the bottom, the upper and lower locking pins 2 are exactly at the position of the upper and lower locking pin holes 5 of the connector. The upper and lower locking pins 2 will pop out from the upper and lower locking pin holes 5 of the connector and protrude from the connector surface to complete the locking between the water pipe straight pipe and the connector. At this time, the upper and lower locking pin holes 5 of the straight pipe and the connector overlap, and the upper and lower locking pins 2 penetrate through the upper and lower locking pin holes 5 of the straight pipe and the connector.

[0007] Furthermore, the locking device for the splicing plastic water pipe frame is an injection-molded plastic product, made of TPU or other materials with toughness and resilience. The data of the locking device, water pipe straight pipe and connector mentioned above, such as the height of the locking post, the wall thickness of the water pipe straight pipe and connector, are based on the data of 20 mm diameter water pipe straight pipe and matching connector on the market. If this utility model is used on other models of water pipe straight pipe and connector, the data will be adjusted accordingly.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. Simple to operate, environmentally friendly materials, with only one additional injection-molded part; water pipes, straight pipes, and connectors can be freely combined to achieve personalized assembly;

[0010] 2. It fills a market gap, makes the most of existing plastic water pipe parts resources on the market, and broadens the applications of plastic water pipes; Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention;

[0012] Figure 2 This is a schematic diagram illustrating the present invention.

[0013] Figure 3 This is a schematic diagram of the installation of this utility model;

[0014] Figure 4 This is a schematic diagram of the installation of this utility model;

[0015] The following are labeled in the diagram: 1. Horizontal "U"-shaped spring-loaded component; 2. Upper and lower retaining posts; 3. Baffle; 4. Connecting strip; 5. Upper and lower retaining post holes. Detailed Implementation

[0016] The technical solutions of the present utility model will be further described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] The following are the specific operating steps:

[0018] Step 1: Please refer to Figure 2 Figure 3 Insert the horizontal "U"-shaped spring piece 1 into the straight pipe end of the water pipe. When inserting, make sure to align the upper and lower retaining posts 2 with the upper and lower retaining post holes 5 of the straight pipe.

[0019] Step 2: After inserting the horizontal "U" shaped spring piece 1, press down the upper and lower buckle pins 2 and insert the upper and lower buckle pins 2 together into the straight water pipe;

[0020] Step 3: Push the baffle 3 inward and block the straight pipe end of the water pipe. At this time, the upper and lower fasteners 2 will pop out from the upper and lower fastener holes 5 of the straight pipe. The upper and lower fasteners 2 protrude from the surface of the straight pipe. If the upper and lower fasteners 2 are not aligned with the upper and lower fastener holes 5, the baffle 3 can be twisted to rotate the upper and lower fasteners 2.

[0021] Step 4: Please refer to Figure 3 Figure 4 Align the upper and lower snap pins 2 of the straight pipe end with the upper and lower snap pin holes 5 of the connector and insert the straight pipe end into the connector;

[0022] Step 5: Press down to insert the body of the upper and lower locking post 2 into the straight water pipe, so that the semi-circular post head is parallel to the surface of the straight water pipe, and continue to insert the straight water pipe into the connector until it is fully inserted. At this time, the position of the upper and lower locking post hole 5 of the connector is exactly corresponding to the upper and lower locking post 2. The upper and lower locking post 2 will pop out and protrude on the surface of the connector to complete the locking between the straight water pipe and the connector.

[0023] Step 6: By repeatedly using the above steps and combining straight water pipes with different connectors (such as two-way, three-way, four-way, etc.), you can assemble various frame-like items with different shapes.

[0024] The working principle of this embodiment: The locking device of the splicing plastic water pipe frame is injection molded using TPU or other materials with toughness and resilience. When the upper and lower locking posts 2 are pressed, the port of the horizontal "U"-shaped spring member 1 is compressed under pressure. When the pressure is released, the "U"-shaped port will automatically spring open. Similarly, when the upper and lower locking posts 2 are pressed into the straight water pipe, the port of the horizontal "U"-shaped spring member 1 is compressed. When the upper and lower locking posts 2 move to the position of the upper and lower locking post holes 5, the upper and lower locking posts 2 will pop out from the upper and lower locking post holes 5 under the action of pressure. When the water pipe is straight... When the upper and lower locking pin holes 5 of the pipe and connector overlap, the pop-out upper and lower locking pins 2 penetrate through the upper and lower locking pin holes 5 of the straight water pipe and the connector. At this time, simply applying outward force cannot separate the connection between the straight water pipe and the connector. This is the locking principle. The top of the upper and lower locking pins 2 has a 2 mm semi-circular arc. The wall thickness of the straight water pipe and the connector is also 2 mm. When the pin is pressed and sinks into the water pipe, if the arc at the top of the pin is subjected to lateral tension, it will continue to sink and lose its locking function. At this time, the upper and lower locking pins 2 can be pulled into the water pipe and disengaged from the upper and lower locking pin holes 5. This is the unlocking principle.

[0025] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art may utilize the disclosed technical content to make changes or modifications to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to substitute them, but this will not deviate from the spirit of this utility model or exceed the scope defined by the appended claims.

Claims

1. A locking device for splicing plastic water pipe frames, comprising a horizontal "U"-shaped spring member (1), upper and lower locking posts (2), a baffle (3), and a connecting strip (4), characterized in that: The two ends of the horizontal "U"-shaped spring member (1) are connected to the vertical upper and lower snap posts (2). The horizontal "U"-shaped spring member (1) is connected to the baffle (3) through the connecting strip (4). The water pipe straight pipe and the connector are equipped with upper and lower snap post holes (5).

2. The locking device for splicing plastic water pipe frames according to claim 1, characterized in that: The height of the horizontal "U"-shaped spring member (1) is equal to the inner diameter of the straight water pipe. The upper and lower buckles (2) are two cylinders with the same shape but opposite directions. Their tails are connected to the two ports of the horizontal "U"-shaped spring member (1) respectively. The head of the column is semi-circular. The horizontal "U"-shaped spring member (1) and the upper and lower buckles (2) are inserted into the water pipe from the port of the straight water pipe. The upper and lower buckles (2) pop out from the buckle hole (5) of the straight water pipe.

3. The locking device for splicing plastic water pipe frames according to claim 1, characterized in that: The baffle (3) is connected by a connecting strip (4) and a horizontal "U"-shaped spring member (1). The diameter of the baffle (3) is slightly smaller than the outer diameter of the straight water pipe but larger than the inner diameter of the straight water pipe. The baffle (3) blocks the end of the straight water pipe and is inserted into the connector together with the end of the straight water pipe. After the straight water pipe is inserted into the connector, the upper and lower buckle holes (5) of the straight water pipe and the connector overlap. The upper and lower buckle (2) pops out from the inner wall of the straight water pipe and protrudes from the outer surface of the connector.

4. The locking device for splicing plastic water pipe frames according to claim 1, characterized in that: The locking device of the splicing plastic water pipe frame is an injection-molded plastic product. It is made of a material with toughness and resilience. The port of the horizontal "U" shaped rebound part (1) has a rebound function. The upper and lower buckle posts (2) connected to the port will automatically rebound after being pressed.

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