Plastic snap-on quick release connection device

Abstract

The utility model discloses a plastic buckle formula quick -release connecting device, including plastic buckle connecting piece one and plastic buckle connecting piece two, still include positioning nail and plastic nut, the end portion sliding connection of plastic buckle connecting piece one has plastic buckle connecting piece two, this plastic buckle formula quick -release connecting device is when receiving outside violent vibration or impact, and positioning nail provides the auxiliary connection positioning for the connection, so even if the chuck separates from the card slot, plastic buckle connecting piece one also can not separate from plastic buckle connecting piece two, thereby avoided the disconnected situation and took place, when the connection is subjected to excessive external force and is pulled and exceeds the material limit, and the chuck is through extruding the two side inclined plane of card slot makes the two detachable parts of plastic buckle connecting piece two be opened, and plastic nut therefore breaks off simultaneously, so plastic buckle connecting piece one is from self -help from plastic buckle connecting piece two and separates, thereby the plastic buckle connecting piece one is protected, makes it not break, only needs to replace plastic nut subsequently.

Description

Technical Field

[0001] This utility model relates to the field of plastic buckle technology, specifically to a plastic buckle-type quick-release connection device. Background Technology

[0002] Plastic snap-fit ​​connectors achieve quick and reliable connections through elastic deformation, while also being lightweight, durable, and easy to process. Plastic snap-fits are mostly made of high-elasticity polymers such as PA and POM, making them suitable for high-frequency assembly scenarios. Nylon snap-fits offer even better performance and are commonly used in original equipment manufacturer (OEM) parts.

[0003] In existing technologies, conventional plastic clips rely solely on elastic deformation for fixation. If the engagement is insufficient or the material deforms, they are prone to loosening under impact or severe vibration, failing to meet high-strength usage requirements. Furthermore, due to the limited strength of the plastic material, the connection strength is low, and breakage occurs when the material's tolerance is exceeded, making repair impossible. Replacing the clip requires re-sewing the connecting strip, which is cumbersome and increases operating costs. Therefore, a plastic clip-type quick-release connection device is designed to overcome these problems by providing a greater engagement range and an anti-loosening limiting structure without compromising ease of use, and by automatically disengaging when the material's tolerance is exceeded. Utility Model Content

[0004] The purpose of this utility model is to provide a plastic snap-on quick-release connection device to solve the problems mentioned in the background art, which are that the existing plastic snaps rely solely on elastic deformation for fixation, and are prone to loosening when subjected to drops, impacts, or severe vibrations. Furthermore, when they break, they cannot be repaired, and replacing the snaps requires re-sewing the connecting strip, which is very troublesome and increases the cost of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic snap-on quick-release connection device, comprising a first plastic snap-on connector and a second plastic snap-on connector, as well as a positioning pin and a plastic nut. The end of the first plastic snap-on connector is slidably connected to the second plastic snap-on connector. One end of the first plastic snap-on connector has deformation arms on both sides, and one end of the deformation arm has a locking head. The second plastic snap-on connector has openings on both sides, and the edges of the openings on both sides of the second plastic snap-on connector have slots that fit with the locking heads. The second plastic snap-on connector consists of two identical detachable parts. The second plastic snap-on connector has connectors on both sides, and the surface of the connectors has through-holes. A plastic bolt is provided at the through-hole on the surface of the connector, and a plastic nut is threaded to the lower end of the plastic bolt. The two detachable parts of the second plastic snap-on connector are fixed by the plastic bolt and the plastic nut. The surface of the second plastic snap-on connector has positioning pins for auxiliary positioning. One end of the first plastic snap-on connector has a limiting strip, and the surface of the limiting strip has positioning holes that fit with the positioning pins.

[0006] Based on the preferred embodiment of this technical solution, the positioning pin is slidably connected to the second plastic buckle connector, and a spring head is fixedly connected to the inner wall of the second plastic buckle connector. The spring head is used to push the positioning pin downward and assist in positioning.

[0007] Based on the preferred embodiment of this technical solution, the lower end of the positioning pin is rounded. When the first plastic buckle connector is inserted into the second plastic buckle connector, the positioning pin is pushed up by one end of the limiting strip. The inner wall surface of the second plastic buckle connector is provided with a limiting groove, which is adapted to the limiting strip.

[0008] In a preferred embodiment of this technical solution, the outer wall surface of the positioning socket is provided with an opening, and a pressure block is slidably disposed in the opening of the outer wall of the positioning socket. A pusher is fixedly connected to one side of the pressure block, and the pusher is used to push the pressure block to move. The pressure block is used to lift the positioning nail.

[0009] Based on the preferred embodiment of this technical solution, one end of the pressure block is a bevel, and the bevel of one end of the pressure block contacts the lower end of the positioning pin. One side of the pusher is an arc surface, and a guide plate is provided on one side of the clamp head. The edges of the guide plate are all arc-shaped. The guide plate is used to squeeze and move the pusher and to assist in the adaptation of the first plastic buckle connector and the second plastic buckle connector.

[0010] In the preferred embodiment of this technical solution, both sides of the card slot are inclined surfaces, and the two inclined surfaces of the card slot are respectively located at the ends of the two detachable components of the plastic buckle connector two, and the two inclined surfaces of the card slot are in contact with the end of the card head.

[0011] Based on the preferred embodiment of this technical solution, when the connection between the first plastic buckle connector and the second plastic buckle connector is subjected to excessive external force, the end of the buckle head is used to press the inclined surface of the buckle groove, and the plastic nut is used as a safety connector for the two detachable parts of the second plastic buckle connector.

[0012] Based on the preferred embodiment of this technical solution, the lower end of the plastic nut is provided with an anti-slip handle, and both the anti-slip handle and the surface of the plastic bolt are provided with hexagonal screw holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. When subjected to severe external vibration or impact, the deformation arm of this plastic snap-on quick-release connector may deform, causing the snap head to disengage from the slot. The positioning pin provides auxiliary connection positioning, so even if the snap head disengages from the slot, the first plastic snap-on connector will not disengage from the second plastic snap-on connector, thus avoiding disconnection. Furthermore, when it is necessary to disconnect, the positioning pin will automatically disengage from the positioning hole, thereby releasing the auxiliary positioning and not affecting the ease of use of the connector.

[0014] 2. When the connection is subjected to excessive external force exceeding the material limit, the clamp head squeezes the two detachable parts of the plastic snap connector two by pressing the inclined surfaces on both sides of the slot. As a result, the plastic nut breaks and detaches at the same time. In this way, the plastic snap connector one will detach from the plastic snap connector two by itself, thus protecting the plastic snap connector one from breaking. Afterwards, only the plastic nut needs to be replaced, without replacing the plastic snap connector one, thereby saving costs and eliminating the need for subsequent installation.

[0015] 3. When used outdoors, mud, sand, gravel, and other foreign objects can easily jam the connection, preventing the first plastic buckle connector from detaching smoothly from the second plastic buckle connector. In this case, hold the non-slip handle and twist it to remove the two detachable parts of the second plastic buckle connector. Once the second plastic buckle connector is opened, the connection of the device is disconnected, which also facilitates the subsequent cleaning of foreign objects. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of one embodiment of the plastic snap-on quick-release connection device of this utility model; Figure 2 This is a three-dimensional structural diagram of the plastic buckle connector of this utility model; Figure 3 This is a two-dimensional structural diagram of the plastic buckle connector of this utility model; Figure 4 This is a cross-sectional view of the connection between the limiting insert and the positioning pin of this utility model; Figure 5 This is a cross-sectional view of the positioning holes and pressure blocks of this utility model. Figure 6 This is a three-dimensional structural diagram of the connection between the pressure block and the pusher of this utility model; Figure 7 This is a three-dimensional structural diagram of the connection between the plastic bolt and the plastic nut of this utility model.

[0017] In the diagram: 1. Plastic snap fastener connector one; 2. Plastic snap fastener connector two; 3. Limiting strip; 4. Positioning hole; 5. Pressure block; 6. Push handle; 7. Deformation arm; 8. Clip head; 9. Guide plate; 10. Positioning pin; 11. Spring head; 12. Limiting groove; 13. Clip groove; 14. Connector; 15. Plastic bolt; 16. Plastic nut; 17. Anti-slip handle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-7 This utility model provides an embodiment of a plastic snap-on quick-release connection device, including a first plastic snap-on connector 1 and a second plastic snap-on connector 2, as well as a positioning pin 10 and a plastic nut 16. The end of the first plastic snap-on connector 1 is slidably connected to the second plastic snap-on connector 2. One end of the first plastic snap-on connector 1 has deformation arms 7 on both sides, and one end of the deformation arm 7 has a locking head 8. The second plastic snap-on connector 2 has openings on both sides, and the edges of the openings on both sides of the second plastic snap-on connector 2 have locking grooves 13 that are adapted to the locking heads 8. Plastic snap fastener connector 2 consists of two identical detachable parts. Connector heads 14 are located on both sides of plastic snap fastener connector 2. Each connector head 14 has a through-hole on its surface, and a plastic bolt 15 is located at the through-hole. A plastic nut 16 is threaded onto the lower end of each plastic bolt 15. The two detachable parts of plastic snap fastener connector 2 are fixed by the plastic bolt 15 and the plastic nut 16. Positioning pins 10 for auxiliary positioning are located on the surface of plastic snap fastener connector 2. One end of plastic snap fastener connector 1... A limiting insert 3 is provided, and the surface of the limiting insert 3 has a positioning hole 4. The positioning hole 4 is adapted to the positioning pin 10. When the plastic snap-on quick-release connection device is subjected to severe external vibration or impact, the positioning pin 10 provides auxiliary connection positioning for the connection. In this way, even if the snap head 8 disengages from the snap slot 13, the plastic snap-on connector 1 will not disengage from the plastic snap-on connector 2, thereby avoiding the occurrence of disconnection. Furthermore, when it is necessary to disconnect the connection, the positioning pin 10 will automatically disengage from the positioning hole 4, thereby releasing the auxiliary positioning without affecting the connection device. The ease of use is achieved when the connection is subjected to excessive external force exceeding the material limit. The clamp head 8 squeezes the two detachable parts of the plastic snap connector 2 by pressing the inclined surfaces on both sides of the slot 13, causing the plastic nut 16 to break and detach simultaneously. In this way, the plastic snap connector 1 detaches itself from the plastic snap connector 2, thus protecting the plastic snap connector 1 from breakage. Subsequently, only the plastic nut 16 needs to be replaced, without replacing the plastic snap connector 1, thereby saving costs and eliminating the need for subsequent installation.

[0020] Please see Figure 4A further solution based on this embodiment is as follows: the positioning pin 10 is slidably connected to the plastic buckle connector 2. A spring head 11 is fixedly connected to the inner wall of the plastic buckle connector 2. The spring head 11 is used to push the positioning pin 10 downward and assist in positioning. When the positioning hole 4 on the surface of the limiting insert 3 moves to directly below the positioning pin 10, the spring in the spring head 11 pushes the positioning pin 10 into the positioning hole 4. In this way, the positioning pin 10 and the limiting insert 3 are connected. The deformation of the spring head 11 requires a greater external force than the deformation of the deformation arm 7, and it is not easy for the positioning pin 10 to be dislodged from the positioning hole 4 due to severe external vibration.

[0021] Please see Figure 4 A further solution based on this embodiment is as follows: the lower end of the positioning pin 10 is rounded. When the plastic buckle connector 1 is inserted into the plastic buckle connector 2, the positioning pin 10 is lifted by one end of the limiting strip 3. The inner wall surface of the plastic buckle connector 2 is provided with a limiting groove 12. The limiting groove 12 is adapted to the limiting strip 3. When the plastic buckle connector 1 is inserted into the plastic buckle connector 2, the limiting strip 3 lifts the positioning pin 10 by squeezing the lower end of the positioning pin 10 during the insertion process. The lower end of the positioning pin 10 is rounded, which makes the squeezing process smoother. The limiting groove 12 is adapted to the limiting strip 3 to prevent the plastic buckle connector 1 from shifting or moving in the plastic buckle connector 2.

[0022] Please see Figure 5 A further solution based on this embodiment is as follows: the outer wall surface of the positioning hole 4 is provided with an opening, and a pressure block 5 is slidably arranged in the opening of the outer wall of the positioning hole 4. A pusher 6 is fixedly connected to one side of the pressure block 5. The pusher 6 is used to push the pressure block 5 to move. The pressure block 5 is used to lift the positioning nail 10. The inclined surface of the pressure block 5 squeezes the lower end of the positioning nail 10, thereby lifting the positioning nail 10 away from the positioning hole 4.

[0023] Please see Figure 5 and Figure 6 A further solution based on this embodiment is as follows: one end of the pressure block 5 is a bevel, and the bevel of one end of the pressure block 5 contacts the lower end of the positioning pin 10. One side of the pusher 6 is an arc surface, and one side of the clamp head 8 is provided with a guide plate 9. The edges of the guide plate 9 are all arc-shaped. The guide plate 9 is used to squeeze the pusher 6 and the adaptation of the auxiliary plastic buckle connector 1 and the plastic buckle connector 2. The side of one end of the pusher 6 is an arc surface, and the edges of the guide plate 9 are all arc-shaped, making the insertion connection smoother. When disconnecting, during this process, the guide plate 9 on one side of the clamp head 8 will squeeze the pusher 6 at the same time, so that the bevel of the pressure block 5 squeezes the lower end of the positioning pin 10, thereby lifting the positioning pin 10 out of the positioning insertion hole 4, thereby releasing the auxiliary positioning, without affecting the convenience of using the connection device.

[0024] Please see Figure 3A further solution based on this embodiment is as follows: both sides of the slot 13 are inclined surfaces, and the two inclined surfaces of the slot 13 are respectively located at the ends of the two detachable parts of the plastic buckle connector 2. The two inclined surfaces of the slot 13 are in contact with the ends of the clip head 8. The clip head 8 pushes the two inclined surfaces of the slot 13 to open the two detachable parts of the plastic buckle connector 2.

[0025] Please see Figure 3 and Figure 7 A further solution based on this embodiment is as follows: When the connection between the plastic snap fastener 1 and the plastic snap fastener 2 is subjected to excessive external force, the end of the clip 8 is used to press the inclined surface of the slot 13, and the plastic nut 16 is used as a safety connector for the two detachable parts of the plastic snap fastener 2. After the two detachable parts are pried open, the plastic nut 16 used to connect the detachable parts will break and detach from the connection with the plastic bolt 15 at the same time. In this way, the plastic snap fastener 1 will detach from the plastic snap fastener 2, thereby protecting the plastic snap fastener 1 and preventing it from breaking. Subsequently, only the plastic nut 16 needs to be replaced.

[0026] Please see Figure 7 The lower end of the plastic nut 16 is provided with an anti-slip handle 17. Both the anti-slip handle 17 and the surface of the plastic bolt 15 are provided with hexagonal screw holes. The above structure is used to facilitate disconnection of the connection between the plastic nut 16 and the plastic bolt 15.

[0027] Working principle: Plastic snap fastener 1 and plastic snap fastener 2 are connected by the matching engagement of the snap head 8 and the snap groove 13. The deformation arm 7 provides support through elastic deformation to match the snap head 8 and the snap groove 13, ensuring the tightness of the connection. However, when subjected to severe external vibration or impact, the deformation arm 7 may deform, causing the snap head 8 to disengage from the snap groove 13, resulting in the disconnection of plastic snap fastener 1 and plastic snap fastener 2. When the above situation occurs, the positioning pin 10 provides auxiliary positioning for the connection of plastic snap fastener 1 and plastic snap fastener 2. In this way, even if the snap head 8 disengages from the snap groove 13, plastic snap fastener 1 will not disengage from plastic snap fastener 2, thus avoiding the occurrence of disconnection.

[0028] When plastic snap fastener 1 is inserted into plastic snap fastener 2, the limiting strip 3 pushes up the positioning pin 10 by squeezing the lower end of the positioning pin 10 during the insertion process. The lower end of the positioning pin 10 is rounded, which makes the squeezing process smoother. When the positioning hole 4 on the surface of the limiting strip 3 moves to directly below the positioning pin 10, the spring in the spring head 11 pushes the positioning pin 10 into the positioning hole 4. In this way, the positioning pin 10 and the limiting strip 3 are connected, thus providing auxiliary positioning for the connection between plastic snap fastener 1 and plastic snap fastener 2. The deformation of the spring head 11 requires a greater external force than the deformation of the deformation arm 7, and it is not easy for the positioning pin 10 to fall out of the positioning hole 4 due to severe external vibration. The limiting groove 12 is used to limit the limiting strip 3 and prevent plastic snap fastener 1 from shifting in plastic snap fastener 2.

[0029] When it is necessary to disconnect the connection between plastic snap fastener 1 and plastic snap fastener 2, hold the snap head 8 and press it down so that the snap head 8 disengages from the snap slot 13. At the same time, plastic snap fastener 1 slides out of plastic snap fastener 2. During this process, the guide plate 9 on one side of the snap head 8 will simultaneously squeeze the pusher 6, so that the inclined surface of the pressure block 5 squeezes the lower end of the positioning pin 10, thereby lifting the positioning pin 10 out of the positioning hole 4, thus releasing the auxiliary positioning without affecting the ease of use of the connection device.

[0030] When the connection between plastic snap fastener 1 and plastic snap fastener 2 is subjected to excessive external force exceeding the material limits of plastic snap fastener 1 and plastic snap fastener 2, the clamp head 8, by pressing the inclined surfaces on both sides of the clamp groove 13, causes the two detachable parts of plastic snap fastener 2 to be opened. As a result, the plastic nut 16 used to connect the detachable parts breaks off from the connection with the plastic bolt 15 at the same time. In this way, plastic snap fastener 1 is disengaged from plastic snap fastener 2, thereby protecting plastic snap fastener 1 from breakage. Subsequently, only the plastic nut 16 needs to be replaced.

[0031] When used outdoors, the device is prone to getting mud, sand, gravel, and other foreign objects inside, which can easily jam the connection parts and prevent the plastic clip connector 1 from detaching smoothly from the plastic clip connector 2. At this time, hold the non-slip handle 17 and turn it to disengage the plastic nut 16 from the plastic bolt 15. Then, the two detachable parts of the plastic clip connector 2 can be removed, thus disconnecting the connection and facilitating the subsequent cleaning of foreign objects.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic snap-on quick release connection device comprising a plastic snap-on connection piece one (1) and a plastic snap-on connection piece two (2), characterized in that: It also includes a positioning pin (10) and a plastic nut (16). The end of the plastic snap fastener connector 1 (1) is slidably connected to the plastic snap fastener connector 2 (2). One end of the plastic snap fastener connector 1 (1) is provided with deformation arms (7) on both sides. One end of the deformation arm (7) is provided with a locking head (8). The plastic snap fastener connector 2 (2) is provided with openings on both sides. The edges of the openings on both sides of the plastic snap fastener connector 2 (2) are provided with slots (13). The slots (13) are adapted to the locking heads (8). The plastic snap fastener connector 2 (2) is composed of two identical detachable parts. The plastic snap fastener connector 2 (2) is provided with connectors (14) on both sides. The surface of the connector (14) is provided with a through connection hole. A plastic bolt (15) is provided at the through connection hole on the surface of the connector (14). A plastic nut (16) is threaded to the lower end of the plastic bolt (15). The two detachable parts of the plastic buckle connector (2) are fixed by the plastic bolt (15) and the plastic nut (16). The surface of the plastic buckle connector (2) is provided with a positioning pin (10) for auxiliary positioning. One end of the plastic buckle connector (1) is provided with a limiting insert (3). The surface of the limiting insert (3) is provided with a positioning hole (4). The positioning hole (4) is adapted to the positioning pin (10).

2. The plastic snap-on quick-release connection device according to claim 1, characterized in that: The positioning pin (10) is slidably connected to the plastic buckle connector (2). A spring head (11) is fixedly connected to the inner wall of the plastic buckle connector (2). The spring head (11) is used to push the positioning pin (10) downward and assist in positioning.

3. The plastic snap-on quick-release connection device according to claim 2, characterized in that: The lower end of the positioning pin (10) is rounded. When the plastic buckle connector one (1) is inserted into the plastic buckle connector two (2), the positioning pin (10) is pushed up by one end of the limiting strip (3). The inner wall surface of the plastic buckle connector two (2) is provided with a limiting groove (12), which is compatible with the limiting strip (3).

4. The plastic snap-on quick-release connection device according to claim 3, characterized in that: The outer wall surface of the positioning hole (4) is provided with an opening, and a pressure block (5) is slidably arranged in the opening of the outer wall of the positioning hole (4). A pusher (6) is fixedly connected to one side of the pressure block (5). The pusher (6) is used to push the pressure block (5) to move, and the pressure block (5) is used to lift the positioning nail (10).

5. The plastic snap-on quick-release connection device according to claim 4, characterized in that: One end of the pressure block (5) is a bevel, and the bevel of one end of the pressure block (5) contacts the lower end of the positioning pin (10). One side of the pusher (6) is an arc surface. One side of the clamp (8) is provided with a guide plate (9). The edges of the guide plate (9) are all arc-shaped. The guide plate (9) is used to squeeze and move the pusher (6) and to adapt the auxiliary plastic buckle connector one (1) and the plastic buckle connector two (2).

6. The plastic snap-on quick-release connection device according to claim 5, characterized in that: Both sides of the slot (13) are bevels. The two bevels of the slot (13) are located at the ends of the two detachable parts of the plastic buckle connector (2). The two bevels of the slot (13) are in contact with the end of the buckle head (8).

7. The plastic snap-on quick-release connecting device according to claim 6, characterized in that: When the connection between plastic snap fastener 1 (1) and plastic snap fastener 2 (2) is subjected to excessive external force, the end of the snap head (8) is used to press the inclined surface of the snap groove (13), and the plastic nut (16) is used as a safety connector for the two detachable parts of plastic snap fastener 2 (2).

8. The plastic snap-on quick-release connecting device according to claim 7, characterized in that: The lower end of the plastic nut (16) is provided with an anti-slip handle (17), and both the anti-slip handle (17) and the surface of the plastic bolt (15) are provided with hexagonal screw holes.

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