A quick assembly / disassembly structure

Abstract

This invention discloses a quick-assembly and disassembly structure. First, the handle is driven from the first end within the first actuation opening in a left-right direction to the second end. At this time, the second limiting opening is in the correct position. Then, a universal bracket is inserted into the housing. At this time, the first limiting block on the universal bracket extends into the first limiting opening, the connecting post on the first limiting block extends into the second limiting opening, and the second limiting block on the connecting post extends into the receiving cavity. Finally, the handle is driven from the second end within the first actuation opening back to the first end in a left-right direction. At this time, the second limiting opening is in a misaligned state, restricting the second limiting block from being pulled forward. Since the first limiting opening always restricts the rotation of the first limiting block, the second limiting block on the first limiting block cannot eliminate the restriction caused by the misalignment by rotation. Thus, the housing and the universal bracket are connected and fixed. This achieves quick connection and quick disassembly of the housing and the universal bracket.

Description

Technical Field

[0001] This invention relates to the field of detachable installation technology, and more particularly to a quick-assembly and disassembly structure. Background Technology

[0002] In daily life and production, it is often necessary to quickly connect and secure two objects, and also to quickly separate them when needed. For example, to save space, sometimes it is necessary to detach power strips and install them on the wall so that they can be easily removed for use or placed on the floor.

[0003] The shortcomings of existing technology: Although the current detachable installation structure can connect, fix and separate two objects by means of screws, clips and other means, it is still not convenient enough in actual use. Summary of the Invention

[0004] The purpose of this invention is to provide a quick assembly / disassembly structure to solve the technical problem that although current detachable installation structures can connect, fix, and detach two objects using screws, clips, etc., they are still not convenient enough in actual use.

[0005] To achieve the above objectives, the present invention provides a quick-assembly and disassembly structure, including a housing and a universal bracket. The housing has an internal rotating groove, a first limiting opening at the front of the rotating groove, and a first actuating opening on the upper sidewall of the rotating groove. A latching lever is rotatably mounted inside the rotating groove. The upper sidewall of the latching lever has a handle that passes through the first actuating opening. The handle can be moved left and right within the first actuating opening to rotate the latching lever relative to the rotating groove. The latching lever has an internal receiving cavity, a second limiting opening at the front of the receiving cavity, and a first limiting block that extends into the first limiting opening. The first limiting block has a connecting post that extends into the second limiting opening, and the connecting post has a second limiting block that extends into the receiving cavity. The first limiting opening restricts the rotation of the first limiting block, and the second limiting opening can be misaligned with the second limiting block to restrict its forward extension. When the handle is moved left or right, the second limiting opening releases the restriction on the forward extension of the second limiting block.

[0006] Furthermore, a latch spring is provided between the rotating groove and the latch lever. When the handle is moved left or right, the latch spring can drive the latch lever to rotate and reset relative to the rotating groove.

[0007] Furthermore, a spring fixing surface extending into the receiving cavity is provided behind the rotating groove. The latch lever can rotate around the spring fixing surface. A mounting block is provided in the middle of the rear end face of the spring fixing surface. A spring rotation opening and a first stop are provided at the edge of the rear end face of the spring fixing surface. The latch spring is a torsion spring and is rotatably mounted on the mounting block. One movable end of the latch spring passes through the spring rotation opening and is connected and fixed to the rear end edge of the latch lever. The other movable end of the latch spring is limited and engaged with the first stop. When the latch lever rotates relative to the rotating groove, the included angle between the two movable ends of the latch spring will change.

[0008] Furthermore, when the front end face of the second limiting block abuts against the front inner wall of the receiving cavity, the rear end face of the second limiting block can abut against the front end of the spring fixing surface to restrict the back-and-forth movement of the second limiting block; a latch rear cover spring cover is detachably installed behind the spring fixing surface, and the front end face of the latch rear cover spring cover is provided with a second stop block and a cylinder that abut against the mounting block and the first stop block respectively.

[0009] Furthermore, the first limiting opening is a rectangular groove, the first limiting block is a rectangular block, the first limiting opening protrudes rearward and abuts against the front end of the latch knob, and the rear end face of the first limiting block abuts against the front end of the latch knob to restrict the rearward movement of the first limiting block.

[0010] Furthermore, the second limiting opening is a rectangular opening, and each of the four edges of the second limiting opening is provided with a protrusion. The second limiting block is a rectangular block, and each of the four edges of the second limiting block is provided with a clearance groove that matches the protrusion. The protrusion can pass through the clearance groove.

[0011] Furthermore, positioning protrusions are provided on the upper and lower sides of the left or right end of the first actuation opening, and positioning grooves are provided on the upper and lower ends of the handle. The positioning protrusions on the upper and lower sides can be positioned and engaged with the positioning grooves on the upper and lower ends respectively. When the handle is moved to the left or right, the positioning engagement between the positioning protrusions and the positioning grooves can be released.

[0012] Furthermore, a toggle handle cover is detachably installed above the first toggle opening. The toggle handle cover is provided with a second toggle opening corresponding to the first toggle opening. The handle passes through the first toggle opening and the second toggle opening in sequence and is connected to the toggle handle. The width of the toggle handle is greater than that of the second toggle opening. The left or right end of the second toggle opening is provided with a disassembly hole through which the toggle handle can pass.

[0013] Furthermore, the housing includes a latch bracket connector cover, a latch front cover, and a latch rear cover arranged sequentially from front to back. The latch bracket connector cover, the latch front cover, and the latch rear cover are detachably installed together. The first limiting opening is located in the middle of the latch bracket connector cover. The front end of the rotating groove and the first actuating opening is located in the middle of the latch front cover. The rear end of the rotating groove and the first actuating opening is located in the latch rear cover.

[0014] Furthermore, the length of the latch bracket connector cover extends left and right, the length of the latch front cover extends left and right, the first limiting opening protrudes rearward relative to the left and right sides of the latch bracket connector cover, the rotating groove protrudes rearward relative to the left and right sides of the latch front cover, and a back magnetic assembly is provided between the left and right sides of the latch bracket connector cover and the left and right sides of the latch front cover, respectively. The latch bracket connector cover is provided with exposure holes for the back magnetic assembly to be exposed one by one. A limiting boss is provided between the universal bracket and the first limiting block. The width of the limiting boss is greater than the first limiting opening, and the rear end face of the limiting boss can abut against the front end of the latch bracket connector cover to restrict the rearward movement of the limiting boss.

[0015] In summary, the technical solution of the present invention has the following beneficial effects: The structure of the present invention is reasonable. (1) When it is necessary to connect and fix the shell and the universal bracket: First, drive the handle from the first end in the first actuation opening to the second end in the left and right direction. At this time, the second limiting opening is in the correct position. Then, insert the universal bracket into the shell. At this time, the first limiting block on the universal bracket extends into the first limiting opening, the connecting post on the first limiting block extends into the second limiting opening, and the second limiting block on the connecting post extends into the receiving cavity. Finally, drive the handle from the second end in the first actuation opening back to the first end in the left and right direction. At this time, the second limiting opening is in the misaligned state. The second limiting opening will restrict the second limiting block from being pulled forward. Since the first limiting opening always restricts the rotation of the first limiting block, the second limiting block set on the first limiting block cannot eliminate the restriction caused by the misalignment by rotation. That is, the shell and the universal bracket are connected and fixed. (2) When it is necessary to disassemble the housing and the universal bracket: First, move the handle from the first end in the first actuation opening back to the second end in the left-right direction. At this time, the second limiting opening is in the correct position and no longer restricts the second limiting block from being pulled forward. Then, pull the universal bracket out of the housing. At this time, the first limiting block on the universal bracket exits the first limiting opening, the connecting post on the first limiting block exits the second limiting opening, and the second limiting block on the connecting post exits the receiving cavity, that is, the housing and the universal bracket are quickly disassembled. Finally, drive the handle from the second end in the first actuation opening back to the first end in the left-right direction. At this time, the second limiting opening is in the misaligned state, which can prevent the universal bracket from being inserted into the housing. From this analysis, it can be seen that the present invention can achieve quick connection and quick disassembly of the housing and the universal bracket simply by rotating the handle to turn the latch. This invention is very simple to operate and has a wide range of applications, so it is very convenient in actual use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the first partial three-dimensional structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the second partial three-dimensional structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the third partial three-dimensional structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the fourth partial three-dimensional structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the fifth partial three-dimensional structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the sixth partial three-dimensional structure of the present invention;

[0023] Figure 8 This is a schematic diagram of the seventh partial three-dimensional structure of the present invention;

[0024] Figure 9 This is a schematic diagram of the eighth partial three-dimensional structure of the present invention;

[0025] Figure 10 This is a schematic diagram of the ninth partial three-dimensional structure of the present invention;

[0026] Figure 11 This is a schematic diagram of the tenth partial three-dimensional structure of the present invention;

[0027] Figure 12 This is a schematic diagram of the eleventh partial three-dimensional structure of the present invention;

[0028] Figure 13 This is a schematic diagram of the twelfth partial three-dimensional structure of the present invention;

[0029] Figure 14 This is a schematic diagram of the thirteenth partial three-dimensional structure of the present invention;

[0030] Figure 15 This is the fourteenth partial three-dimensional structural schematic diagram of the present invention;

[0031] Figure 16 This is a schematic diagram of the fifteenth partial three-dimensional structure of the present invention;

[0032] Figure 17 This is a schematic diagram of the sixteenth partial three-dimensional structure of the present invention;

[0033] Figure 18 This is a schematic diagram of the seventeenth partial three-dimensional structure of the present invention;

[0034] Figure 19 This is a schematic diagram of the eighteenth partial three-dimensional structure of the present invention;

[0035] Figure 20 This is a schematic diagram of the nineteenth partial three-dimensional structure of the present invention;

[0036] Figure 21 This is a schematic diagram of the twentieth partial three-dimensional structure of the present invention;

[0037] Explanation of reference numerals in the attached drawings: 1-Housing, 101-Rotating groove, 102-First limiting opening, 103-First actuating opening, 104-Spring fixing surface, 105-Mounting block, 106-Spring rotating opening, 107-First stop block, 108-Positioning protrusion, 2-Universal bracket, 201-Limiting boss, 202-First limiting block, 203-Connecting column, 204-Second limiting block, 205-Allowing groove, 3-Lock lever, 301-Handle, 3 02-Receiving cavity, 303-Second limiting opening, 304-Protrusion, 305-Positioning groove, 306-Toggle handle, 307-Connecting hole, 4-Latch spring, 5-Latch rear cover spring cover, 501-Second stop, 502-Cylinder, 6-Toggle handle cover, 601-Second toggle opening, 602-Disassembly hole, 7-Latch bracket connector cover, 701-Exposed hole, 8-Latch front cover, 9-Latch rear cover, 10-Snap, 11-Back magnetic assembly. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, but this does not constitute a limitation on the scope of protection of the present invention.

[0039] In this invention, for clarity, the following description is provided: The observer faces the attached... Figure 1 When observing, the observer's left side is designated as left, the observer's right side as right, the observer's front as down, the observer's rear as up, the observer's top as front, and the observer's bottom as back. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate orientations or positional relationships based on the accompanying drawings. These are merely for the purpose of clearly describing the invention and do not indicate or imply that the structures or components referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0040] See Figures 1 to 21This embodiment provides a quick-assembly and disassembly structure, including a housing 1 and a universal bracket 2. The housing 1 has a rotating groove 101 inside, a first limiting opening 102 in front of the rotating groove 101, and a first actuating opening 103 on the upper side wall of the rotating groove 101. A latching lever 3 is rotatably mounted inside the rotating groove 101. The upper side wall of the latching lever 3 has a handle 301 that passes through the first actuating opening 103. The handle 301 can be moved left and right within the first actuating opening 103 to drive the latching lever 3 to rotate relative to the rotating groove 101. The latching lever 3 has a receiving cavity 302 inside, and a second limiting opening 102 is provided in front of the receiving cavity 302. The universal bracket 2 is provided with a first limiting block 202 that can extend into the first limiting opening 102. The first limiting block 202 is provided with a connecting post 203 that can extend into the second limiting opening 303. The connecting post 203 is provided with a second limiting block 204 that can extend into the receiving cavity 302. The first limiting opening 102 can restrict the rotation of the first limiting block 202. The second limiting opening 303 can restrict the second limiting block 204 from being pulled forward by forming a misalignment with the second limiting block 204. When the lever 301 is moved to the left or right, the second limiting opening 303 can release the restriction on the second limiting block 204 from being pulled forward. Function: (1) When it is necessary to connect and fix the housing and the universal bracket: First, drive the handle from the first end in the first actuation opening to the second end in the left and right direction. At this time, the second limiting opening is in the correct position. Then, insert the universal bracket into the housing. At this time, the first limiting block on the universal bracket extends into the first limiting opening, the connecting post on the first limiting block extends into the second limiting opening, and the second limiting block on the connecting post extends into the receiving cavity. Finally, drive the handle from the second end in the first actuation opening back to the first end in the left and right direction. At this time, the second limiting opening is in the misaligned state. The second limiting opening will restrict the second limiting block from being pulled forward. Since the first limiting opening always restricts the rotation of the first limiting block, the second limiting block set on the first limiting block cannot eliminate the restriction caused by the misalignment by rotation. That is, the housing and the universal bracket are connected and fixed. (2) When it is necessary to disassemble the housing and the universal bracket: First, move the handle from the first end in the first actuation opening to the second end in the left-right direction. At this time, the second limiting opening is in the correct position and no longer restricts the second limiting block from being pulled forward. Then, pull the universal bracket out of the housing. At this time, the first limiting block on the universal bracket exits the first limiting opening, the connecting post on the first limiting block exits the second limiting opening, and the second limiting block on the connecting post exits the receiving cavity. That is, the housing and the universal bracket are quickly disassembled. Finally, drive the handle from the second end in the first actuation opening back to the first end in the left-right direction. At this time, the second limiting opening is in the misaligned state, which can prevent the universal bracket from being inserted into the housing.As can be seen from the analysis, the present invention can achieve quick connection and quick disassembly of the housing and the universal bracket simply by rotating the handle and turning the latch. The invention is very simple to operate and has a wide range of applications, so it is very convenient to use in practice.

[0041] Specifically, a latch spring 4 is provided between the rotating groove 101 and the latch lever 3. When the handle 301 is moved left or right, the latch spring 4 can drive the latch lever 3 to rotate and reset relative to the rotating groove 101. Function: By setting the latch spring 4, after the operator manually moves the handle from the first end in the first actuation opening to the second end in the left-right direction, the elastic force of the latch spring 4 will drive the latch lever 3 to rotate and reset relative to the rotating groove 101. This allows the handle to return from the second end in the first actuation opening to the first end in the left-right direction under the elastic force of the latch spring 4. That is, the reset of the handle and the latch lever 3 can be achieved by the latch spring 4, without the need for manual pushing, thus simplifying the operation.

[0042] Specifically, a spring fixing surface 104 extending into the receiving cavity 302 is provided behind the rotating groove 101. The latch lever 3 can rotate around the spring fixing surface 104. A mounting block 105 is provided in the middle of the rear end face of the spring fixing surface 104. A spring rotation opening 106 and a first stop 107 are provided on the edge of the rear end face of the spring fixing surface 104. The latch spring 4 is a torsion spring and is rotatably mounted on the mounting block 105. One movable end of the latch spring 4 passes through the spring rotation opening 106 and is connected and fixed to the rear end edge of the latch lever 3. The other movable end of the latch spring 4 is limited and engaged with the first stop 107. When the latch lever 3 rotates relative to the rotating groove 101, the included angle between the two movable ends of the latch spring 4 will change. Function: When the operator moves the handle from the first end of the first actuation opening to the second end in a left-right direction, the angle between the two movable ends of the latch spring 4 will be compressed or stretched apart. This will cause the latch spring 4 to generate a gradually increasing elastic force. Therefore, when the operator's hand is removed from the handle, the angle between the two movable ends of the latch spring 4 will tend to return to its original position, thereby generating an elastic force to drive the latch lever 3 and the handle 306 to reset. Preferably, the rear edge of the latch lever 3 is provided with a connecting hole 307, which facilitates connection and fixation to one movable end of the latch spring 4. That is, one end of the latch spring 4 is inserted into the connecting hole 307 of the latch lever, thereby enabling the latch lever to drive the latch spring to rotate.

[0043] Specifically, when the front end face of the second limiting block 204 abuts against the front inner wall of the receiving cavity 302, the rear end face of the second limiting block 204 abuts against the front end of the spring fixing surface 104 to restrict the back-and-forth movement of the second limiting block 204; a latch rear cover spring cover 5 is detachably installed behind the spring fixing surface 104, and the front end face of the latch rear cover spring cover 5 is provided with a second stop 501 and a cylinder 502 that abut against the mounting block 105 and the first stop 107, respectively. Function: By restricting the back-and-forth movement of the second limiting block 204, the second limiting block 204 is better limited. The latch rear cover spring cover 5 facilitates the back-and-forth limitation of the latch spring 4 and provides protection.

[0044] Specifically, the first limiting opening 102 is a rectangular groove, and the first limiting block 202 is a rectangular block. The first limiting opening 102 protrudes rearward and abuts against the front end of the latch knob 3. The rear end face of the first limiting block 202 abuts against the front end of the latch knob 3 to restrict the rearward movement of the first limiting block 204. Function: The rectangular groove does not affect the forward and backward movement of the rectangular block, but it restricts the rotation of the rectangular block. Of course, other shapes such as pentagons can also achieve the same function, and no specific limitation is made here.

[0045] Specifically, the second limiting opening 303 is a rectangular opening, and each of its four edges is provided with a protrusion 304. The second limiting block 204 is a rectangular block, and each of its four edges is provided with a clearance groove 205 that matches the protrusion 304. The protrusion 304 can pass through the clearance groove 205. Function: By setting the second limiting opening 303 to be a rectangular opening with the same shape as the rectangular groove, it is convenient for the operator to determine whether the second limiting opening 303 is in a positive or negative position. That is, when the rectangular opening is in a positive position, the second limiting opening 303 is in a positive position. When the rectangular opening is in a negative position, the second limiting opening 303 is in a negative position (because the second limiting block 204, as a rectangular block, moves in the same direction as the rectangular groove and does not rotate relative to it). By setting the clearance groove 205, when the second limiting opening 303 is in the positive position, the protrusion 304 can pass through the clearance groove 205, thereby allowing the second limiting block 204 to pass through the second limiting opening 303. When the second limiting opening 303 is in the misaligned position, the protrusion 304 and the clearance groove 205 are misaligned, thereby preventing the second limiting block 204 from passing through the second limiting opening 303.

[0046] Specifically, the upper and lower sides of the left or right end of the first actuation opening 103 are respectively provided with positioning protrusions 108, and the upper and lower ends of the handle 301 are respectively provided with positioning grooves 305. The positioning protrusions 108 on the upper and lower sides can be positioned and engaged with the positioning grooves 305 on the upper and lower ends respectively. When the handle 301 is moved to the left or right, the positioning engagement between the positioning protrusions 108 and the positioning grooves 305 can be released. Function: The positioning engagement between the positioning protrusions 108 and the positioning grooves 305 prevents the handle 301 from being moved arbitrarily. Only when the operator applies a certain force can the positioning engagement between the positioning protrusions 108 and the positioning grooves 305 be released, so that the handle 301 can move left and right. Preferably, the positioning protrusions 108 on the upper and lower sides are located at one end of the first actuation opening 103 after the handle 301 is reset, so as to avoid affecting the reset operation of the handle 301.

[0047] Specifically, a toggle handle cover 6 is detachably installed above the first aggle opening 103. The toggle handle cover 6 has a second aggle opening 601 corresponding to the first aggle opening 103. The handle 301 passes upward through the first aggle opening 103 and the second aggle opening 601 in sequence and then connects to the aggle handle 306. The width of the aggle handle 306 is greater than that of the second aggle opening 601. The left or right end of the second aggle opening 601 has a disassembly hole 602 through which the aggle handle 306 can pass. Function: By setting the toggle handle cover 6, the internal parts are prevented from being exposed, while the aggle handle 306 is enlarged to facilitate the application of force for toggle.

[0048] Specifically, the housing 1 includes a latch bracket connector cover 7, a latch front cover 8, and a latch rear cover 9 arranged sequentially from front to back. The latch bracket connector cover 7, latch front cover 8, and latch rear cover 9 are detachably mounted. A first limiting opening 102 is located in the middle of the latch bracket connector cover 7. The front ends of the rotating groove 101 and the first actuating opening 103 are located in the middle of the latch front cover 8, and the rear ends of the rotating groove 101 and the first actuating opening 103 are located in the latch rear cover 9. Function: The detachable mounting of the latch bracket connector cover 7, latch front cover 8, and latch rear cover 9 facilitates the installation of the latch lever 3. Specifically, the latch lever 3 can be installed onto the latch rear cover 9 first, followed by the latch front cover 8, and then the latch bracket connector cover 7.

[0049] Specifically, the length of the latch bracket connecting cover 7 extends left and right, the length of the latch front cover 8 extends left and right, the first limiting opening 102 protrudes rearward relative to the left and right sides of the latch bracket connecting cover 7, the rotating groove 101 protrudes rearward relative to the left and right sides of the latch front cover 8, and a back magnetic component 11 is provided between the left and right sides of the latch bracket connecting cover 7 and the left and right sides of the latch front cover 8, respectively. The latch bracket connecting cover 7 has an exposure hole 701 for the back magnetic component 11 to be exposed. Function: By providing the back magnetic components 11 on the left and right sides of the housing, the housing can be adsorbed onto the sheet metal wall of the working chamber, thus saving floor space and allowing for convenient use and placement. If it is not a sheet metal wall, the rotating groove, the first limiting opening, and the second limiting opening in the middle of the housing can be used to connect with a universal bracket pre-fixed to the wall of the working chamber for fixation. This combination saves space and allows for convenient use or placement. Preferably, there are four back magnetic components 11, two on each of the left and right sides of the housing. The back magnetic components 11 can be magnets, ferrules, or other components with the same function. A limiting boss 201 is provided between the universal bracket 2 and the first limiting block 202. The width of the limiting boss 201 is greater than the first limiting opening 102. The rear end face of the limiting boss 201 can abut against the front end of the latch bracket connecting cover 7 to restrict the rearward movement of the limiting boss 201. Function: By setting the limiting boss 201, the insertion range of the universal bracket 2 into the housing 1 can be limited.

[0050] It should be noted that the above-mentioned detachable installation method is preferably fixed by the buckle 10.

[0051] For example, taking the fixing of a power strip as an example, in practical applications: to save space, the universal bracket 2 can be fixed to the wall first, and then the housing 1 can be inserted into the power strip. The first limiting opening 102, the first actuating opening 103, and the back magnetic component 11 are exposed on the power strip. Finally, by turning the handle, the universal bracket 2 can be inserted into the housing 1. When the handle of the locking lever 3 is released, the locking lever will spring back, thereby misaligning the protrusion of the locking lever with the clearance groove of the universal bracket to achieve the effect of locking the object. This completes the detachable installation of the power strip on the wall, achieving the effect of connecting two objects. To remove it, simply turn the handle to remove the universal bracket 2 from the housing 1. It can be seen that this invention can effectively facilitate the connection of two objects and make them difficult to separate. It is also convenient to use; simply pull the handle. This invention is very simple to operate and has a wide range of applications. Placing four magnets on the housing 1 of the power strip allows it to be attached to the iron wall of the work area, thus saving floor space and making it easy to use and put away. If the wall is not made of sheet metal, the center latch of the power strip can be used to connect to a universal bracket for mounting on the wall. This combination saves space and is readily available for use or placement.

[0052] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A quick-assembly / disassembly structure, comprising a housing (1) and a universal bracket (2), characterized in that: The housing (1) has a rotating groove (101) inside, a first limiting opening (102) in front of the rotating groove (101), and a first actuating opening (103) on the upper side wall of the rotating groove (101). A latch lever (3) is rotatably mounted inside the rotating groove (101). A handle (301) passing through the first actuating opening (103) is provided on the upper side wall of the latch lever (3). The handle (301) can be moved left and right in the first actuating opening (103) to drive the latch lever (3) to rotate relative to the rotating groove (101). The latch lever (3) has a receiving cavity (302) inside, and a second limiting opening (303) in front of the receiving cavity (302). The universal bracket (2) A first limiting block (202) is provided that can extend into the first limiting opening (102). A connecting post (203) is provided on the first limiting block (202) that can extend into the second limiting opening (303). A second limiting block (204) is provided on the connecting post (203) that can extend into the receiving cavity (302). The first limiting opening (102) can restrict the rotation of the first limiting block (202). The second limiting opening (303) can restrict the second limiting block (204) from being pulled forward by forming a misalignment with the second limiting block (204). When the handle (301) is moved to the left or right, the second limiting opening (303) can release the restriction on the second limiting block (204) from being pulled forward. A latch spring (4) is provided between the rotating groove (101) and the latch lever (3). When the handle (301) is moved left and right, the latch spring (4) can drive the latch lever (3) to rotate and reset relative to the rotating groove (101). The rotating groove (101) is provided with a spring fixing surface (104) extending into the receiving cavity (302) at the rear. The latch lever (3) can rotate around the spring fixing surface (104). The middle of the rear end face of the spring fixing surface (104) is provided with a mounting block (105). The edge of the rear end face of the spring fixing surface (104) is provided with a spring rotation opening (106) and a first stop (107). The latch spring (4) is a torsion spring and is rotatably mounted on the mounting block (105). One movable end of the latch spring (4) passes through the spring rotation opening (106) and is connected and fixed to the rear end edge of the latch lever (3). The other movable end of the latch spring (4) is limited and cooperated with the first stop (107). When the latch lever (3) rotates relative to the rotating groove (101), the included angle between the two movable ends of the latch spring (4) will change. When the front end face of the second limiting block (204) abuts against the front inner wall of the receiving cavity (302), the rear end face of the second limiting block (204) abuts against the front end of the spring fixing surface (104) to restrict the back-and-forth movement of the second limiting block (204); a latch rear cover spring cover plate (5) is detachably installed behind the spring fixing surface (104), and the front end face of the latch rear cover spring cover plate (5) is provided with a second stop block (501) and a cylinder (502) that abut against the mounting block (105) and the first stop block (107) respectively. The first limiting opening (102) is a rectangular groove, the first limiting block (202) is a rectangular block, the first limiting opening (102) protrudes backward and abuts against the front end of the latch knob (3), and the rear end face of the first limiting block (202) can abut against the front end of the latch knob (3) to restrict the first limiting block (202) from moving backward; The second limiting opening (303) is a rectangular opening, and the four edges of the second limiting opening (303) are respectively provided with protrusions (304). The second limiting block (204) is a rectangular block, and the four edges of the second limiting block (204) are respectively provided with clearance grooves (205) that are adapted to the protrusions (304). The protrusions (304) can pass through the clearance grooves (205). The first actuation opening (103) has positioning protrusions (108) on the upper and lower sides of the left or right end, and the handle (301) has positioning grooves (305) on the upper and lower ends. The positioning protrusions (108) on the upper and lower sides can be positioned and engaged with the positioning grooves (305) on the upper and lower ends respectively. When the handle (301) is moved to the left or right, the positioning engagement between the positioning protrusions (108) and the positioning grooves (305) can be released.

2. The quick-assembly and disassembly structure according to claim 1, characterized in that: A toggle handle cover (6) is detachably installed above the first toggle opening (103). The toggle handle cover (6) is provided with a second toggle opening (601) corresponding to the first toggle opening (103). The handle (301) passes through the first toggle opening (103) and the second toggle opening (601) in sequence and is connected to the toggle handle (306). The width of the toggle handle (306) is greater than the width of the second toggle opening (601). The left or right end of the second toggle opening (601) is provided with a disassembly hole (602) through which the toggle handle (306) can pass.

3. The quick-assembly and disassembly structure according to claim 1, characterized in that: The housing (1) includes a latch bracket connector cover (7), a latch front cover (8), and a latch rear cover (9) arranged sequentially from front to back. The latch bracket connector cover (7), the latch front cover (8), and the latch rear cover (9) are detachably installed together. The first limiting opening (102) is located in the middle of the latch bracket connector cover (7). The front end of the rotating groove (101) and the first actuating opening (103) is located in the middle of the latch front cover (8). The rear end of the rotating groove (101) and the first actuating opening (103) is located in the latch rear cover (9).

4. The quick-assembly and disassembly structure according to claim 3, characterized in that: The length of the latch bracket connector cover (7) extends from left to right, and the length of the latch front cover (8) extends from left to right. The first limiting opening (102) protrudes backward relative to the left and right sides of the latch bracket connector cover (7). The rotating groove (101) protrudes backward relative to the left and right sides of the latch front cover (8). The left and right sides of the latch bracket connector cover (7) are respectively provided with back magnetic components (11) between the left and right sides of the latch bracket connector cover (7) and the left and right sides of the latch front cover (8). The latch bracket connector cover (7) is provided with exposure holes (701) for the back magnetic components (11) to be exposed one by one. The universal bracket (2) and the first limiting block (202) are provided with a limiting boss (201). The width of the limiting boss (201) is greater than the width of the first limiting opening (102). The rear end face of the limiting boss (201) can abut against the front end of the latch bracket connector cover (7) to restrict the backward movement of the limiting boss (201).

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