Quick connecting device and dip net

Abstract

The utility model relates to a quick connecting device and a dip net. The quick connecting device comprises a male inserting rod with a protrusion and a female connector assembly. The female connector assembly comprises a female insertion sleeve provided with an axial through hole containing cavity, an ejector block, an elastic element and a plug, wherein the ejector block, the elastic element and the plug are located in the axial through hole containing cavity of the female insertion sleeve. The plug is fixed in the axial through hole containing cavity, and the elastic element is located between the ejector block and the plug. The female plug sleeve is provided with a convex edge and a sliding groove, the sliding groove comprises a lead-in groove, a transition groove and a limiting and fixing groove, and the lead-in groove is communicated with the limiting and fixing groove through the transition groove; the male insertion rod is inserted from the axial through hole containing cavity of the female insertion sleeve, the protrusion of the male insertion rod enters from the guide-in groove of the sliding groove and reaches the limiting and fixing groove along the transition groove, under the action of the elastic element, the protrusion of the male insertion rod abuts against the top of the limiting and fixing groove, and therefore the male plug assembly and the female connector assembly are connected together. The quick connecting device has the advantages of being simple in structure, convenient to operate, firm in fixation, short in operation time and the like.

Description

Technical Field

[0001] This utility model relates to a connecting device for connecting two objects together, and in particular to a connecting device that allows two objects to be quickly and detachably connected together; this utility model also relates to accessories for fishing or catching fish, and in particular to landing nets or scooping nets used for fishing or catching fish. Background Technology

[0002] Fishing and / or angling has become one of the most popular forms of entertainment and leisure for modern people. It can relax the mind of anglers and / or fishermen and provide them with physical exercise. Therefore, fishing and / or angling has not only become a popular leisure activity for middle-aged and elderly people, but it is also now favored by many young people.

[0003] A landing net is a type of fishing and / or angling tool. Its simple structure and ease of use make it one of the most popular fishing and / or angling tools. A landing net mainly consists of a net frame, a net bag fixed to the frame, and a landing net pole. For easy replacement and carrying, the landing net pole and frame are usually connected by threaded bolts. However, this connection method is time-consuming and laborious to assemble and disassemble, prone to rust, and easily loosens, causing the landing net pole and frame to separate. This is especially problematic when catching large fish, as their struggles are significant, and if the landing net pole and frame separate, the loss can be substantial.

[0004] In the existing technology, threaded bolts are often used to connect two objects together, but this method also has the aforementioned shortcomings.

[0005] See Figure 17 Furthermore, the landing net pole 4' and the net frame 3' are connected together. At their connection point, the free end face of the landing net pole 4' is usually opposite the end face of the net frame 3' at the connection point. There may be a gap 99 between the two end faces. When using the landing net to catch fish, the gap 99 between the two end faces may trap, damage, snag, or trap foreign objects such as the net bag. Sometimes, when using the landing net to catch fish, the fish in the net bag may also hit the gap 99 between the two end faces, which may harm the fish in the net bag. Utility Model Content

[0006] The technical problem to be solved by this utility model is to avoid the shortcomings of the prior art and provide a quick connection device and a landing net. The quick connection device can quickly and detachably connect two objects together. For example, it can quickly fix the landing net pole and the net frame together and fix them firmly so that they are not easy to fall off. It can also quickly separate the landing net pole and the net frame. It has the advantages of simple structure, high safety, convenient operation, firm fixation and short operation time.

[0007] The technical solution adopted by this utility model to solve the aforementioned technical problem is:

[0008] A quick-connect device is provided for quickly and detachably connecting two objects together, including a male plug assembly and a female connector assembly. The male plug assembly includes a male prong with a protrusion on its outer surface. The female connector assembly includes a female sleeve with an axially through-hole cavity, a top block, an elastic element, and a plug. The inserted end of the female sleeve has a raised edge, and the female sleeve has an equal number of sliding grooves that mate with the protrusion of the male prong, the sliding grooves communicating with the axially through-hole cavity. The slide groove includes an inlet groove, a transition groove, and a limiting and fixing groove. The inlet opening of the inlet groove penetrates the outer end face of the protruding edge, but does not penetrate the outer circumferential surface of the protruding edge. The transition groove connects the inlet groove and the limiting and fixing groove. The top block, elastic element, and plug are located within the axial through-hole cavity of the female sleeve. The plug is fixed within the axial through-hole cavity, and the elastic element is located between the top block and the plug. Under the action of the elastic element and / or external force, the top block can slide within the axial through-hole cavity, with the free end of the top block facing the female sleeve. The sleeve is inserted into the inlet; the free end of the male plug of the male plug assembly is inserted into the inlet of the axial through-hole cavity of the female plug sleeve, wherein the protrusion of the male plug enters from the guide groove of the slide and reaches the transition groove. At this time, the free end of the male plug has pushed the top block to compress the elastic element. The male plug is rotated so that the protrusion of the male plug reaches the limiting and fixing groove along the transition groove. Under the action of the elastic element, the protrusion of the male plug is pushed against the top of the limiting and fixing groove, thereby connecting the male plug assembly and the female plug assembly together.

[0009] The top block is confined within the axial through-hole cavity and will not slide out.

[0010] The axial through-hole cavity includes an inlet cavity, a limiting cavity, and an installation cavity. The limiting cavity connects the inlet cavity and the installation cavity. The inner diameter of the inlet cavity is larger than the inner diameter of the installation cavity, and the inner diameter of the installation cavity is larger than the inner diameter of the limiting cavity. The male insertion rod includes a top with an outer diameter smaller than the inner diameter of the limiting cavity and a fixing part with an outer diameter larger than the inner diameter of the limiting cavity. The outer diameter of the fixing part is smaller than the inner diameter of the inlet cavity. The top block includes an inlet part with an outer diameter smaller than the inner diameter of the limiting cavity and a limiting part with an outer diameter larger than the inner diameter of the limiting cavity. The outer diameter of the limiting part is smaller than the inner diameter of the installation cavity. The top block, the elastic element, and the plug are located in the installation cavity of the axial through-hole cavity. The plug is fixed in the installation cavity, and the free end of the inlet part of the top block is located in the limiting cavity, which prevents the top block from sliding out of the axial through-hole cavity.

[0011] The end face of the limiting portion of the top block is provided with a blind hole facing the inlet portion, and one end of the elastic element rests against the bottom of the blind hole.

[0012] The inner surface of the top of the limiting and fixing groove is adapted to the protruding outer surface of the male plug.

[0013] When the protrusion of the male insertion rod reaches the limiting and fixing groove along the transition groove, the male insertion rod is rotated by an angle of 50° to 90°.

[0014] The male plug assembly also includes a fixing rod with an outer diameter smaller than that of the male plug rod.

[0015] The distance between the protrusion of the male connector and the end face of the free end of the male connector is not less than 30 mm.

[0016] A landing net is also provided, comprising a net frame, a net bag fixed to the net frame, and a landing net pole; the net frame and the landing net pole are connected together by the aforementioned quick-connect device.

[0017] The male connector assembly of the quick-connect device is partially embedded in the mesh frame, and the female connector assembly of the quick-connect device is entirely embedded in the net-collecting pole except for the protruding edge. The mesh frame has a protective protruding cavity at the location where the male connector assembly is embedded. After the mesh frame and the net-collecting pole are connected together by the quick-connect device, the protective protruding cavity on the mesh frame covers part or all of the protruding edge of the female connector assembly.

[0018] Compared with existing technologies, the advantages of this utility model's quick-connect device and net are as follows:

[0019] I. This utility model quick connection device includes a male plug assembly and a female connector assembly. The male plug assembly has a protrusion, and the female connector assembly has a sliding groove on the female sleeve that matches the protrusion. The sliding groove includes an inlet groove, a transition groove, and a limiting and fixing groove. The protrusion on the male plug assembly enters from the inlet groove of the sliding groove and reaches the limiting and fixing groove along the transition groove. Under the action of the elastic element in the female sleeve of the female connector assembly, the protrusion of the male plug is pushed against the top of the limiting and fixing groove, thereby connecting the male plug assembly and the female connector assembly together. To separate the male plug assembly and the female connector assembly, simply move the male plug assembly downward with one hand and then rotate the male plug assembly so that the protrusion of the male plug assembly moves from the limiting and fixing groove along the transition groove to the inlet groove and then exits, i.e., returns along the path, thus separating the male plug assembly from the female connector assembly.

[0020] II. The present invention features a raised edge at the end of the insertion port of the female connector assembly. The raised edge has two main functions: First, it increases the strength of the insertion port of the female connector because the groove penetrates the outer surface of the female connector except for the raised edge; Second, it provides a positioning or limiting function when the female connector is fixed to the net pole or net frame of the net.

[0021] Third, the protrusion of this utility model has two axially symmetrical points, and similarly, the slide groove also has two axially symmetrical points; thus, there are two connection and fixing points, making the male plug assembly and the female plug assembly more securely fixed.

[0022] Fourth, the axial through-hole cavity is designed as three stepped holes, namely, the axial through-hole cavity includes an inlet cavity, a limiting cavity, and an installation cavity. The limiting cavity connects the inlet cavity and the installation cavity. The inner diameter of the inlet cavity is larger than the inner diameter of the installation cavity, and the inner diameter of the installation cavity is larger than the inner diameter of the limiting cavity. The advantage of this structure is that, in addition to confining the top block within the axial through-hole cavity to prevent it from slipping out, the limiting cavity also serves as a positioning and inlet function. Furthermore, it allows for a larger diameter and better strength for the fixing part of the male plug, except for the top.

[0023] 5. The inner surface of the top of the limiting and fixing groove is designed to match the protruding outer surface of the male plug, so that the limiting is more accurate and the fixing is more reliable and does not wobble.

[0024] VI. High Safety: Part of the male connector component of the quick-connect device is embedded in the net frame, and the female connector component, except for the protruding edge, is entirely embedded in the landing net pole. A protective cavity is provided at the location where the male connector component is embedded in the net frame. After the net frame and landing net pole are connected together using the quick-connect device, the protective cavity on the net frame covers part or all of the protruding edge of the female connector component. The advantage of this is that when using the landing net to catch fish, it avoids the gap between the two ends of the net frame and landing net pole connection point in existing landing nets, which can trap, damage, snag, or trap foreign objects such as the net bag. It also avoids the possibility of fish in the net bag hitting the gap between the two ends of the net frame and landing net pole connection point in existing landing nets, which could harm the fish in the net bag.

[0025] In summary, this utility model quick-connect device can quickly and detachably connect two objects together. For example, it can quickly and securely fix the net pole and the net frame of a landing net together, making it difficult for them to fall off. It can also quickly separate the net pole and the net frame of a landing net. It has the advantages of simple structure, high safety, convenient operation, secure fixing and short operation time. Attached Figure Description

[0026] Figure 1 This is an exploded isometric projection schematic diagram of one embodiment of the quick connection device of this utility model;

[0027] Figure 2 This is one of the front sectional views of an embodiment of the quick-connect device when they are assembled together, with the protrusion inside the guide groove of the slide.

[0028] Figure 3 This is the second front view sectional view of an embodiment of the quick connection device when they are assembled together. In the figure, the protrusion is in the transition groove of the slide and is about to enter the limiting and fixing groove.

[0029] Figure 4 This is the third orthographic projection front view sectional view of one embodiment of the quick connection device when they are assembled together, with the protrusion at the top of the limiting and fixing groove of the slide.

[0030] Figure 5 This is an isometric projection schematic diagram of one embodiment of the male plug assembly of the quick-connect device;

[0031] Figure 6 This is a front sectional view of an embodiment of the male plug assembly;

[0032] Figure 7 This is a front view diagram of an embodiment of the male plug assembly;

[0033] Figure 8 This is a front sectional view of an embodiment of the female connector assembly of the quick-connect device;

[0034] Figure 9 This is an exploded isometric projection schematic diagram of one embodiment of the female connector assembly;

[0035] Figure 10 yes Figure 9 A front view of an embodiment of the female connector assembly's female sleeve shown in the diagram;

[0036] Figure 11 yes Figure 10 The female sleeve shown is a right-side orthographic projection schematic diagram of this embodiment.

[0037] Figure 12 This is an isometric projection schematic diagram of another embodiment of the female sleeve;

[0038] Figure 13 yes Figure 12 The diagram shows a right-side orthographic projection of the female sleeve in this embodiment, and a front-side orthographic projection of the female sleeve in this embodiment. Figure 10 Same;

[0039] Figure 14 This is a front sectional view of the top block of the female connector assembly.

[0040] Figure 15 This is a schematic cross-sectional view of the main view of the cutting net of this utility model;

[0041] Figure 16 yes Figure 15 An enlarged view of point A shown;

[0042] Figure 17 This is a cross-sectional schematic diagram of the orthographic projection of the main view of a current technology net. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings.

[0044] See Figures 1 to 14 A quick-connection device 1 is used to quickly and detachably connect two objects together, such as the net pole and net frame of a landing net. It includes a male plug assembly 10 and a female plug assembly 20. The male plug assembly 10 includes a male insertion rod 11, the outer surface of which has a protrusion 111. The female plug assembly 20 includes a female sleeve 21 with an axial through-hole cavity 211, a top block 22, an elastic element 23, and a plug 24. The elastic element 23 can be a spring. The inserted end of the female sleeve 21 has a raised edge 212, and the female sleeve 21 has an equal number of sliding grooves 213 that mate with the protrusion 111 of the male insertion rod 11. These sliding grooves 213 communicate with the axial through-hole cavity 211. The slide groove 213 is hook-shaped or J-shaped. It includes an inlet groove 2131, a transition groove 2132, and a limiting and fixing groove 2133. The inlet opening of the inlet groove 2131 penetrates the outer end face 2121 of the protruding edge 212, but does not penetrate the outer circumferential surface 2122 of the protruding edge 212. The transition groove 2132 connects the inlet groove 2131 and the limiting and fixing groove 2133. The inlet groove 2131 and the limiting and fixing groove 2133 are located in the same direction as the transition groove 2132. Figure 1Above, the limiting and fixing groove 2133 is equivalent to the inverted groove of the guide groove 2131, and the length of the limiting and fixing groove 2133 is shorter than the length of the guide groove 2131; the top block 22, the elastic element 23 and the plug 24 are located in the axial through hole cavity 211 of the female sleeve 21, wherein the plug 24 is fixed in the axial through hole cavity 211, the elastic element 23 is located between the top block 22 and the plug 24, and under the action of the elastic element 23 and / or external force, the top block 22 can slide in the axial through hole cavity 211, and the free end of the top block 22 faces the insertion port of the female sleeve 21; the free end of the male plug rod 11 of the male plug assembly 10 The male plug 11 is inserted into the axial through-hole cavity 211 of the female sleeve 21. The protrusion 111 of the male plug 11 enters from the guide groove 2131 of the slide groove 213 and reaches the transition groove 2132. At this time, the free end of the male plug 11 has pushed the top block 22 to compress the elastic element 23. The male plug 11 is rotated so that the protrusion 111 of the male plug 11 reaches the limiting fixing groove 2133 along the transition groove 2132. Under the action of the elastic element 23, the protrusion 111 of the male plug 11 is pushed against the top of the limiting fixing groove 2133, thereby connecting the male plug assembly 10 with the female plug assembly 20. To separate the male plug assembly 10 from the female plug assembly 20, simply move the male plug rod 11 downwards with one hand. This compresses the elastic element 23, allowing the male plug rod 11 to rotate. The protrusion 111 of the male plug rod 11 moves from the limiting and fixing groove 2133 along the transition groove 2132 to the guide groove 2131 and then exits, returning along the same path. This separates the male plug assembly 10 from the female plug assembly 20. The protruding edge 212 and the female plug sleeve 21 are integral. The outer diameter of the protruding edge 212 is larger than the outer diameter of other parts of the adjacent female plug sleeve 21, hence the name "protruding edge." The protruding edge 212 has two main functions: first, it increases the strength of the female plug sleeve 21 at the insertion point because the sliding groove 213 penetrates the outer surface of the female plug sleeve 21 except for the protruding edge 212; second, it provides a positioning or limiting function when the female plug sleeve 21 is fixed to the net pole or frame of the net, for example... Figure 15 and Figure 16 When the female sleeve 21 is fixed to the net rod of the net, after the female sleeve 21 is inserted into the inner hole of the net rod 4, the head of the net rod 4 rests on the inner end face 2123 of the protrusion 212. The plug 24 is fixed in the axial through hole cavity 211. The plug 24 is provided with an external thread 241 and a knife-edge groove 242. The tail end of the axial through hole cavity 211 of the female sleeve 21 is provided with an internal thread 21131 that matches the external thread 241. A flathead screwdriver is inserted into the knife-edge groove 242 of the plug 24, and the plug 24 is screwed into the internal thread 21131 at the tail end of the axial through hole cavity 211 of the female sleeve 21.

[0045] See Figures 1 to 4 and Figures 8 to 13 The transition groove 2132 and the guide groove 2131 can be vertically connected, and the transition groove 2132 and the limiting and fixing groove 2133 can also be vertically connected. In this case, the guide groove 2131 and the limiting and fixing groove 2133 can be considered to be spatially parallel. When the protrusion 111 of the male insertion rod 11 reaches the limiting and fixing groove 2133 along the transition groove 2132, the male insertion rod 11 is rotated by an angle of 50° to 90°, for example, the male insertion rod 11 is rotated by an angle of 55°. That is to say, the distance between the guide groove 2131 and the limiting and fixing groove 2133 cannot be too close, otherwise the strength of the protrusion 219 between them will be insufficient. However, it cannot be too far apart either, otherwise it will be difficult to rotate the male insertion rod 11. The circumferential distance between the guide groove 2131 and the limiting and fixing groove 2133 is best at 50° / 360° to 90° / 360° = 5 / 36 to 1 / 4 of the circumference. Figures 1 to 4 and Figures 8 to 11 The male insertion rod 11 is rotated at an angle of exactly 90°. Figure 12 and Figure 13 The male insertion rod 11 is rotated at an angle of 55°. Alternatively, the transition groove 2132 and the guide groove 2131 may not be perpendicularly connected; a slight difference is acceptable. The transition groove 2132 and the limiting and fixing groove 2133 may also not be perpendicularly connected; a slight difference is acceptable.

[0046] The top block 22 is confined within the axial through-hole cavity 211 to prevent it from sliding out, which can be achieved in the following manner:

[0047] First, if the axial through-hole cavity 211 is a straight hole, that is, the inner diameter is the same, the two ends of the elastic element 23 can be fixed to the top block 22 and the plug 24 respectively. Since the plug 24 is fixed in the axial through-hole cavity 211, the top block 22 is restricted in the axial through-hole cavity 211 and will not slide out.

[0048] Second, the axial through-hole cavity 211 is divided into two stepped holes: an insertion cavity at the insertion end and an installation cavity for mounting the top block 22, the elastic element 23, and the plug 24. The inner diameter of the insertion cavity is smaller than the inner diameter of the installation cavity. Since the plug 24 is fixed inside the axial through-hole cavity 211, the top block 22 will also be confined inside the axial through-hole cavity 211 and will not slide out.

[0049] Third, see Figures 1 to 4 and Figures 8 to 14The axial through-hole cavity 211 is divided into three stepped holes, namely, the axial through-hole cavity 211 includes an inlet cavity 2111, a limiting cavity 2112, and an installation cavity 2113. The limiting cavity 2112 connects the inlet cavity 2111 and the installation cavity 2113. The inner diameter of the inlet cavity 2111 is larger than the inner diameter of the installation cavity 2113, and the inner diameter of the installation cavity 2113 is larger than the inner diameter of the limiting cavity 2112. The male insertion rod 11 includes a top 112 with an outer diameter smaller than the inner diameter of the limiting cavity 2112 and a fixing part 113 with an outer diameter larger than the inner diameter of the limiting cavity 2112. The outer diameter of the fixing part 113 is smaller than the inner diameter of the inlet cavity 2111. The top block 22 includes an inlet part 221 with an outer diameter smaller than the inner diameter of the limiting cavity 2112 and an outer... A limiting portion 222 with a diameter larger than the inner diameter of the limiting cavity 2112, and an outer diameter smaller than the inner diameter of the mounting cavity 2113; the top block 22, the elastic element 23, and the plug 24 are located within the mounting cavity 2113 of the axial through-hole cavity 211, wherein the plug 24 is fixed within the mounting cavity 2113, and the free end of the guide portion 221 of the top block 22 is located within the limiting cavity 2112, which prevents the top block 22 from sliding out of the axial through-hole cavity 211. The advantage of this structure is that, in addition to confining the top block 22 within the axial through-hole cavity 211 to prevent it from sliding out, the limiting cavity 2112 also serves as a positioning and guiding mechanism, and allows for a larger diameter and stronger strength for the fixing portion 113 of the male insertion rod 11, excluding the top 112.

[0050] See Figure 8 , Figure 9 and Figure 14 In order to limit the elastic element 23, the end face of the limiting part 222 of the top block 22 is provided with a blind hole 223 facing the inlet part 221, and one end of the elastic element 23 is pressed against the bottom 2231 of the blind hole 223.

[0051] See Figure 4 , Figure 11 and Figure 13 In order to ensure accurate positioning and secure fixation, and to prevent the male insertion rod 11 from shaking, the inner surface 21331 of the top of the limiting and fixing groove 2133 is adapted to the outer surface of the protrusion 111 of the male insertion rod 11.

[0052] See Figure 1 and Figure 9To ensure a more secure and balanced fit, the male insertion rod 11 has two protrusions 111, which are axially symmetrical. Similarly, the sliding groove 213 also has two protrusions. In practice, a through hole can be provided on the male insertion rod 11, and a cylindrical rod can be fixed inside the through hole, with the ends protruding to a specified length.

[0053] See Figures 1 to 7 The male plug assembly 10 also includes a fixing rod 12 with an outer diameter smaller than that of the male plug rod 11. The purpose of using the stepped rod is to provide a positioning or limiting function when the male plug assembly 10 is fixed to the net-collecting pole or net frame of the net. For example... Figure 15 and Figure 16 When the fixing rod 12 (not shown) of the male plug assembly 10 is fixed to the frame of the net, after the fixing rod 12 of the male plug assembly 10 is inserted into the inner hole (not shown) of the net frame, the stepped surface 114 at the connection between the fixing rod 12 and the male plug rod 11 of the male plug assembly 10 rests on the end face (not shown) of the inner hole of the net frame. To reduce weight, the male plug assembly 10 is provided with a first blind hole 13, but a through hole can also be directly provided. For secure fixing, such as Figure 7 The outer surface of the fixing rod 12 of the male plug assembly 10 is provided with multiple first stripes 121, or as shown in the image. Figures 2 to 4 The outer surface of the fixing rod 12 of the male plug assembly 10 is provided with multiple mesh patterns 122.

[0054] See Figure 7 To ensure a more secure fixation, the distance L from the protrusion 111 of the male plug 11 to the end face of the free end of the male plug 11 shall not be less than 30 mm.

[0055] See Figures 1 to 16 A landing net includes a net frame 3, a net bag (not shown) fixed to the net frame 3, and a landing net pole 4; the net frame 3 and the landing net pole 4 are connected together using the aforementioned quick-connect device. A male plug assembly 10 of the quick-connect device 1 is fixed to the net frame 3, and a female plug assembly 20 of the quick-connect device 1 is fixed to the landing net pole 4. Alternatively, the female plug assembly 20 of the quick-connect device 1 can also be fixed to the net frame 3, and the male plug assembly 10 of the quick-connect device 1 can also be fixed to the landing net pole 4.

[0056] See Figure 15 Because the net frame 3 is relatively large, only a part of it is drawn. The net bag fixed to the net frame 3 is not drawn. The net pole 4 is also relatively long, so only a part of it is drawn.

[0057] See Figure 15 and Figure 16The male connector assembly 10 of the quick-connect device is partially embedded in the mesh frame 3, and the female connector assembly 20 of the quick-connect device is entirely embedded in the landing pole 4 except for the protruding edge 212. The mesh frame 3 has a protective protruding cavity 31 at the location where the male connector assembly 10 is embedded. After the mesh frame 3 and the landing pole 4 are connected together using the quick-connect device, the protective protruding cavity 31 on the mesh frame 3 covers part or all of the protruding edge 212 of the female connector assembly 20. 12, that is, part or all of the protruding edge 212 is located in the groove 311 of the protective cavity 31. The function of the protective cavity 31 is to prevent the fishing line from being caught, damaged, snagged, or caught in the net bag when using a landing net to catch fish, as is the case with existing landing nets. It also prevents fish in the net bag from potentially hitting the gap between the two ends of the connection between the net frame and the landing net pole, which could damage the fish in the net bag.

[0058] The male plug assembly 10 and the female connector assembly 20 of the quick connection device 1 of this utility model are securely fixed together, and the male plug assembly 10 and the female connector assembly 20 are also very easy to detach.

[0059] The above-described embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A quick-connect device, characterized in that: It includes a male plug assembly (10) and a female plug assembly (20); the male plug assembly (10) includes a male prong (11), and the outer surface of the male prong (11) is provided with a protrusion (111); The female connector assembly (20) includes a female insert sleeve (21) with an axial through-hole cavity (211), a top block (22), an elastic element (23), and a plug (24); the inserted end of the female insert sleeve (21) is provided with a raised edge (212), and the female insert sleeve (21) is provided with an equal number of sliding grooves (213) that cooperate with the protrusions (111) of the male insert rod (11), and the sliding grooves (213) communicate with the axial through-hole cavity (211). The slide (213) includes an inlet groove (2131), a transition groove (2132), and a limiting and fixing groove (2133). The inlet opening end of the inlet groove (2131) penetrates the outer end face (2121) of the protruding edge (212), but the inlet groove (2131) does not penetrate the outer circumferential surface (2122) of the protruding edge (212). The transition groove (2132) connects the inlet groove (2131) and the limiting and fixing groove (2133). The top block (22) and the elastic element ( 23) and plug (24) are located in the axial through hole cavity (211) of the female sleeve (21), wherein the plug (24) is fixed in the axial through hole cavity (211), the elastic element (23) is located between the top block (22) and the plug (24), and under the action of the elastic element (23) and / or external force, the top block (22) can slide in the axial through hole cavity (211), and the free end of the top block (22) faces the insertion port of the female sleeve (21); The free end of the male plug (11) of the male plug assembly (10) is inserted into the insertion port of the axial through hole cavity (211) of the female plug sleeve (21). The protrusion (111) of the male plug (11) enters from the guide groove (2131) of the slide groove (213) and reaches the transition groove (2132). At this time, the free end of the male plug (11) has pushed the top block (22) to compress the elastic element (23). The male plug (11) is rotated so that the protrusion (111) of the male plug (11) reaches the limiting fixing groove (2133) along the transition groove (2132). Under the action of the elastic element (23), the protrusion (111) of the male plug (11) is pushed against the top of the limiting fixing groove (2133), thereby connecting the male plug assembly (10) and the female plug assembly (20).

2. The quick connection device according to claim 1, characterized in that: The top block (22) is confined within the axial through-hole cavity (211) and will not slide out.

3. The quick connection device according to claim 2, characterized in that: The axial through-hole cavity (211) includes an inlet cavity (2111), a limiting cavity (2112), and a mounting cavity (2113). The limiting cavity (2112) connects the inlet cavity (2111) and the mounting cavity (2113). The inner diameter of the inlet cavity (2111) is larger than the inner diameter of the mounting cavity (2113), and the inner diameter of the mounting cavity (2113) is larger than the inner diameter of the limiting cavity (2112); the male insertion rod (11) includes a top (112) with an outer diameter smaller than the inner diameter of the limiting cavity (2112) and a fixing part (113) with an outer diameter larger than the inner diameter of the limiting cavity (2112), the outer diameter of the fixing part (113) being smaller than the inner diameter of the inlet cavity (2111); the top block (22) includes an inlet part (221) with an outer diameter smaller than the inner diameter of the limiting cavity (2112) and a fixing part (113) with an outer diameter larger than the inner diameter of the limiting cavity (2112), the outer diameter of the fixing part (113) being smaller than the inner diameter of the inlet cavity (2111); The limiting cavity (2112) has a large inner diameter limiting part (222), and the outer diameter of the limiting part (222) is smaller than the inner diameter of the mounting cavity (2113); the top block (22), the elastic element (23) and the plug (24) are located in the mounting cavity (2113) of the axial through hole cavity (211), wherein the plug (24) is fixed in the mounting cavity (2113), and the free end of the guide part (221) of the top block (22) is located in the limiting cavity (2112), which prevents the top block (22) from sliding out of the axial through hole cavity (211).

4. The quick connection device according to claim 3, characterized in that: The end face of the limiting part (222) of the top block (22) is provided with a blind hole (223) facing the inlet part (221), and one end of the elastic element (23) is abutted against the bottom (2231) of the blind hole (223).

5. The quick connection device according to claim 1, characterized in that: The inner surface (21331) of the top of the limiting and fixing groove (2133) is adapted to the outer surface of the protrusion (111) of the male plug (11).

6. The quick connection device according to claim 1, characterized in that: When the protrusion (111) of the male plug (11) reaches the limiting and fixing groove (2133) along the transition groove (2132), the male plug (11) is rotated by an angle of 50° to 90°.

7. The quick connection device according to claim 1, characterized in that: The male plug assembly (10) also includes a fixing rod (12) with an outer diameter smaller than that of the male plug rod (11).

8. The quick-connect device according to any one of claims 1 to 7, characterized in that: The distance (L) from the protrusion (111) of the male plug (11) to the end face of the free end of the male plug (11) is not less than 30 mm.

9. A landing net, comprising a net frame (3), a net bag fixed to the net frame (3), and a landing pole (4); characterized in that: The net frame (3) and the net pole (4) are connected together using the quick connection device described in any one of claims 1 to 8.

10. The data collection net according to claim 9, characterized in that: The male plug assembly (10) of the quick-connect device is partially embedded in the mesh frame (3), and the female plug assembly (20) of the quick-connect device is entirely embedded in the net rod (4) except for the protruding edge (212). The mesh frame (3) has a protective protruding cavity (31) at the location where the male plug assembly (10) is embedded. After the mesh frame (3) and the net rod (4) are connected together by the quick-connect device, the protective protruding cavity (31) on the mesh frame (3) covers part or all of the protruding edge (212) of the female plug assembly (20).

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