Quick assembly and disassembly structure and connecting and fixing device

Abstract

The invention discloses a quick-assembly and quick-disassembly structure and a connecting and fixing device. The quick-assembly and quick-disassembly structure comprises a base, a movable key, a touch pin, at least one locking piece and a bottom plate, a containing groove is formed in the upper surface of the base, a movable groove is formed in the lower surface of the base, a through hole penetrates through the base, and a mounting groove is formed in at least one of the two sides of the movable groove. The movable key is movably clamped in the movable groove, the movable key moves back and forth in the movable groove through an arranged reset elastic device, a movable groove is formed in the movable key in the moving direction, and a limiting groove is formed in the inner wall of the movable groove; a limiting bulge is arranged on the outer wall of the lower end of the touch pin; the locking piece is positioned in the mounting groove; the bottom plate and the base cover each other, and a thrust structure is arranged in the bottom plate; the connecting and fixing device comprises a connecting block and a quick-assembly and quick-disassembly structure; the invention has the advantages that after the connecting block is pressed into the accommodating groove, the locking piece locks the connecting block; when the movable key is pressed down, the connecting block can be taken out from the accommodating groove; mounting and dismounting are convenient and fast, and fixation is firm.

Description

Technical Field

[0001] The present invention relates to the technical field of digital product accessories, in particular to a quick-install and quick-disassemble structure and a connecting and fixing device. Background Art

[0002] When people carry and use digital products, such as taking cameras, sports cameras, and mobile phones out for shooting, they need to use camera shoulder straps (or wrist straps). However, they need to take off the shoulder straps (or wrist straps) when shooting, otherwise it will affect the shooting (for example, when using a stabilizer for shooting, the shoulder straps and wrist straps will cause the stabilizer to be unbalanced). At this time, a quick-install and quick-release structure and a connecting and fixing device are needed to facilitate the photographer to quickly install or remove the shoulder straps (or wrist straps) and improve the photographer's work efficiency.

[0003] In addition, when photographers use cameras, action cameras, mobile phones, etc. to shoot, they often need to use a tripod to fix the camera and other photographic equipment. The traditional method is to use a quick-release plate (installed on the bottom of the camera or other photographic equipment body or the bottom of the telephoto lens) to fix it to the tripod head. After installation, you can start shooting. This traditional method is cumbersome to install and remove the quick-release plate each time, and it also requires the use of specific tools. The camera with the quick-release plate installed also needs to tighten screws and other steps to install (remove) it on the tripod head, which greatly affects the photographer's work efficiency and misses the wonderful moments when shooting. At this time, a quick-release structure and a connecting and fixing device are also needed to facilitate the photographer to quickly install or remove the camera and other photographic equipment on the tripod. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a quick-install and quick-disinstall structure and a connection and fixing device to address the shortcomings of the existing technology. Using the quick-install and quick-disinstall structure and the connection and fixing device of the present invention, a camera or other photographic equipment can be quickly installed and connected to a tripod or shoulder strap or other photographic equipment, greatly improving the photographer's work efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0006] A quick assembly and disassembly structure and a connection and fixing device, comprising:

[0007] A base, wherein the upper surface of the base is provided with a receiving groove, the receiving groove is used to receive the connecting block, the lower surface of the base is provided with a movable groove, the base is penetrated by a through hole, the receiving groove is connected with the movable groove through the through hole, at least one side of the two sides of the movable groove is provided with a mounting groove, the mounting groove is connected with the receiving groove, and the side wall of the movable groove is provided with a slot hole;

[0008] A movable button, wherein the movable button is movably arranged in the movable groove, the outer end of the movable button moves in the slot hole, and the movable button moves back and forth in the movable groove through a reset elastic device. The movable button is provided with a movable groove along the moving direction, and a limit groove is provided on the inner wall of the movable groove;

[0009] A trip pin is movably arranged in the through hole, and a limiting protrusion is provided on the outer wall of the lower end of the trip pin;

[0010] at least one locking member, the locking member being located in the mounting groove;

[0011] A bottom plate, the bottom plate and the lower surface of the base cover each other, and a thrust structure is provided inside the bottom plate, the thrust structure is used to push the trigger pin away from the bottom plate;

[0012] When the connecting block is installed in the receiving groove and the bottom of the connecting block presses the trip pin, the limiting protrusion of the trip pin disengages from the limiting groove. Under the force of the reset elastic device, the movable button moves toward the slot hole and drives the locking member toward the trip pin so that the locking member locks the connecting block.

[0013] Under the action of external force, the movable button is driven to move toward the inner end of the movable button, and the movable button drives the locking member away from the trigger pin, so that the locking member opens the connecting block. Under the action of the thrust structure, the limiting protrusion of the trigger pin is pushed into the limiting groove.

[0014] A preferred solution is that at least one side of the movable button is provided with an inclined slide rail, one side of the locking piece is slidably connected to the inclined slide rail, and the other side is provided with a locking surface. When the connecting block is installed in the accommodating groove and the bottom of the connecting block presses the trigger pin, the limiting protrusion of the trigger pin disengages from the limiting groove. Under the action of the reset elastic device, the movable button moves toward the slot hole and drives the locking surface of the locking piece toward the trigger pin so that the locking surface locks the connecting block; under the action of external force, the movable button is pressed, so that the movable button moves toward the inner end of the movable button, and the movable button drives the locking surface of the locking piece away from the trigger pin, so that the locking surface opens the connecting block.

[0015] A preferred solution is that the locking surface is an inclined surface inclined upward.

[0016] A preferred solution is that the movable key is provided with a guide groove along the moving direction, a guide post is provided in the movable groove, and the guide post is slidably connected to the guide groove.

[0017] A preferred solution is that a limiting column is provided in the movable groove.

[0018] A preferred solution is that a fixing hole is provided at the inner end of the movable button, one end of the resetting elastic device is located in the fixing hole, and the other end is connected to the inner wall of the limiting groove.

[0019] A preferred solution is that the thrust structure includes a first magnetic part, and the trigger pin is provided with a second magnetic part that repel each other with the first magnetic part. Under the action of external force, the movable button is driven to move toward the inner end of the movable button, and the movable button drives the locking part away from the trigger pin, so that the locking part opens the connecting block. Under the mutual repulsive force between the first magnetic part and the second magnetic part, the limiting protrusion of the trigger pin is pushed into the limiting groove.

[0020] A preferred solution is that the quick-install and quick-disinstall structure and the connection and fixing device further include a mounting plate for fixing to a tripod, and the bottom plate or base is fixedly connected to the mounting plate.

[0021] A preferred solution is that the mounting plate is penetrated by a mounting hole, and the base plate is fixedly connected to the mounting plate after passing through the mounting hole.

[0022] Another technical solution of the present invention is:

[0023] A connecting and fixing device comprises a connecting block fixedly connected to a photographic device and also comprises a quick-install and quick-disassemble structure.

[0024] The quick-install and quick-disinstall structure and connection and fixing device provided by the embodiment of the present invention have at least the following beneficial effects: after the connecting block is pressed into the receiving groove, the locking piece locks the connecting block; by pressing the movable button, the connecting block can be taken out of the receiving groove; installation and disassembly are convenient and quick, and the fixation is firm.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of the present invention when the connecting block is locked;

[0027] Figure 2 yes Figure 1 sectional view of

[0028] Figure 3 The present invention is a three-dimensional Figure 1 ;

[0029] Figure 4 The present invention is a three-dimensional Figure 1 ;

[0030] Figure 5 yes Figure 3 sectional view of

[0031] Figure 6 The present invention is a three-dimensional Figure 2 ;

[0032] Figure 7 yes Figure 6 Cross-section Figure 1 ;

[0033] Figure 8 yes Figure 6 Cross-section Figure 2 ;

[0034] Figure 9 The present invention is a three-dimensional Figure 2 ;

[0035] Figure 10 It is a three-dimensional diagram of the movable key in the present invention;

[0036] Figure 11 This is a three-dimensional diagram of the movable button and the locking member when assembled in the present invention;

[0037] Figure 12 This is a three-dimensional diagram of the locking member locking the connecting block in the present invention;

[0038] Figure 13 is a three-dimensional diagram of the trigger pin of the present invention;

[0039] Figure 14 is a three-dimensional diagram of the locking member of the present invention;

[0040] Figure 15 It is a three-dimensional diagram of the mounting plate and the base plate when assembled in the present invention;

[0041] Figure 16 is a perspective view of the mounting plate of the present invention;

[0042] Figure 17 It is a three-dimensional diagram of the base in the present invention. DETAILED DESCRIPTION

[0043] In order to illustrate the idea and purpose of this application, this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", "left", "right", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0045] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] like Figures 1 to 17 As shown, a quick assembly and disassembly structure and a connection and fixing device include: a base 10, a movable button 20, a trigger pin 30 and a bottom plate 50.

[0047] like Figures 5 to 17 As shown, the base 10 has a receiving groove 11 on its upper surface, which is used to accommodate the connecting block 90. ​​The base 10 has a movable groove 12 on its lower surface. The base 10 has a through hole 13 extending therethrough, and the receiving groove 11 is connected to the movable groove 12 through the through hole 13. At least one side of the movable groove 12 has a mounting groove 14, which is connected to the receiving groove 11. The side wall of the movable groove 12 has a slot 15. The slot 15 is provided on one side adjacent to the movable groove 12.

[0048] like Figures 1 to 11 As shown, the movable button 20 is movably arranged in the movable groove 12, the outer end of the movable button 20 is movable in the slot 15, and the movable button 20 moves back and forth in the movable groove through the reset elastic device 60. The movable button 20 is provided with a movable groove 21 along the moving direction, and the inner wall of the movable groove 21 is provided with a limit groove 22.

[0049] like Figures 2 to 13 As shown, the trigger pin 30 is movably arranged in the through hole 13, and a limiting protrusion 31 is provided on the outer wall of the lower end of the trigger pin 30.

[0050] like Figures 3 to 14 As shown, at least one locking member 40 is provided, and the locking member 40 is located in the installation slot 14 . The locking member 40 is movable in the installation slot 14 .

[0051] like Figures 1 to 8 As shown, the bottom plate 50 covers the lower surface of the base 10 , and a thrust structure 70 is provided inside the bottom plate 50 , and the thrust structure 70 is used to push the trigger pin 30 away from the bottom plate 50 .

[0052] like Figures 1 to 17As shown, one side of the connecting block 90 is fixedly connected to a camera or other photographic equipment. When the connecting block 90 is installed in the accommodating groove 11 and the bottom of the connecting block 90 presses the trigger pin 30, the limiting protrusion 31 of the trigger pin 30 is disengaged from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the locking member 40 to approach the trigger pin 30, so that the locking member 40 locks the connecting block 90.

[0053] like Figures 1 to 17 As shown, under the action of external force, the movable button 20 is driven to move toward the inner end of the movable button 20, and the movable button 20 drives the locking member 40 away from the trigger pin 30, so that the locking member 40 opens the connecting block 90. ​​Under the action of the thrust structure 70, the limiting protrusion 31 of the trigger pin 30 is pushed into the limiting groove 22, preventing the movable button 20 from moving freely.

[0054] like Figures 1 to 17 As shown, one side of the connecting block 90 is fixed on the camera. The present invention is fixed on a photographic auxiliary equipment such as a tripod or a slide rail. When the camera is equipped with the connecting block 90, the connecting block 90 is placed in the receiving groove 11 of the base 10. Under the gravity of the camera and the connecting block 90 and the external force, the connecting block 90 presses on the upper end of the trigger pin 30 so that the trigger pin 30 retracts into the through hole 13, and the limiting protrusion 31 of the trigger pin 30 disengages from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the locking member 40 to approach the center of the receiving groove 11, so that the locking member 40 locks the connecting block 90, that is, after the connecting block 90 is pressed into the receiving groove 11, the locking member 40 locks the connecting block 90, and the locking member 40 locks the connecting block 90, and the locking member 40 locks the connecting block 90, and the locking is firmly fixed.

[0055] like Figures 1 to 17 As shown, under the action of external force, the movable button 20 is pressed, so that the movable button 20 moves toward the inner end of the movable button 20, and the movable button 20 drives the locking member 40 away from the center of the accommodating groove 11, so that the locking member 40 opens the connecting block 90. ​​At the same time, under the action of the thrust structure 70, the limiting protrusion 31 of the trigger pin 30 is pushed into the limiting groove 22, and the trigger pin 30 plays a positioning role for the movable button 20 to prevent the movable button 20 from bouncing open under the action of the reset elastic device 60. That is, when the movable button 20 is pressed, the connecting block 90 can be taken out of the accommodating groove 11, which facilitates the removal of the connecting block 90.

[0056] like Figures 1 to 14As shown, at least one side of the movable button 20 is provided with an inclined slide rail 23, one side of the locking member 40 is slidably connected to the inclined slide rail 23, and the other side is provided with a locking surface 41. When the connecting block 90 is installed in the accommodating groove 11 and the bottom of the connecting block 90 presses the trigger pin 30, the limiting protrusion 31 of the trigger pin 30 is disengaged from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the locking surface 41 of the locking member 40 toward the trigger pin 30 so that the locking surface 41 locks the connecting block 90. ​​Under the action of external force, the movable button 20 is pressed, so that the movable button 20 moves toward the inner end of the movable button 20. The movable button 20 drives the locking surface 41 of the locking member 40 away from the trigger pin 30, so that the locking surface 41 opens the connecting block 90.

[0057] like Figures 1 to 14 As shown, an inclined slide groove 42 is provided on one side of the locking member 40 close to the inclined slide rail 23. When the movable button 20 slides back and forth along the movable groove 12, the inclined slide rail 23 slides along the inclined slide groove 42, causing the locking member 40 to approach or move away from the center of the accommodating groove 11.

[0058] like Figures 1 to 14 As shown, the locking surface 41 is an upwardly inclined surface. The locking member 40 includes a slider 43 and a locking surface 41. The slider 43 is provided with an inclined slot 42. The slider 43 is positioned within the mounting slot 14, and the locking surface 41 extends through the mounting slot 14 toward the receiving slot 11. The inclined surface facilitates clamping the connecting block 90 and prevents it from detaching.

[0059] like Figures 1 to 17 As shown, the movable key 20 is provided with a guide groove 24 along the moving direction, and a guide column 17 is provided in the movable groove 12, and the guide column 17 is slidably connected to the guide groove 24. The guide groove 24 plays a guiding role, making the movement of the movable key 20 more stable.

[0060] like Figures 1 to 17 As shown, a limiting column 16 is provided in the movable slot 12 , and the limiting column 16 is located in the moving slot 21 and close to the slot hole 15 .

[0061] like Figures 1 to 17As shown, when the connecting block 90 is installed in the accommodating groove 11 and the bottom of the connecting block 90 presses the trigger pin 30, the limiting protrusion 31 of the trigger pin 30 disengages from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the locking member 40 to approach the center of the accommodating groove 11, so that the locking member 40 locks the connecting block 90, and the limiting column 16 abuts against the limiting protrusion 31, which plays a positioning role for the movable button 20; at the same time, under the action of external force, the movable button 20 is driven to move toward the inner end direction of the movable button 20, and the movable button 20 drives the locking member 40 away from the center of the accommodating groove 11, so that the locking member 40 opens the connecting block 90. ​​Under the action of the thrust structure 70, the limiting protrusion 31 of the trigger pin 30 is pushed into the limiting groove 22, and the limiting column 16 abuts against the limiting protrusion 31.

[0062] like Figures 1 to 17 As shown, the inner end of the movable button 20 is provided with a fixing hole 25. One end of the return spring device 60 is located in the fixing hole 25, and the other end is connected to the inner wall of the retaining groove 22. The fixing hole 25 secures the spring. There are two fixing holes 25 and two return spring devices 60. In the present invention, the return spring device 60 is a return spring.

[0063] like Figures 1 to 17 As shown, the thrust structure 70 includes a first magnetic part, and the trigger pin 30 is provided with a second magnetic part 32 that repel each other with the first magnetic part. Under the action of external force, the movable button 20 is driven to move toward the inner end of the movable button 20, and the movable button 20 drives the locking part 40 away from the center of the accommodating groove 11, so that the locking part 40 opens the connecting block 90. ​​Under the mutual repulsive force between the first magnetic part and the second magnetic part 32, the limiting protrusion 31 of the trigger pin 30 is pushed into the limiting groove 22.

[0064] In some embodiments, such as Figures 1 to 17 As shown, the quick-install and quick-release structure and connection and fixing device also includes a mounting plate 80 for fixing to a tripod, and the base plate 50 or base 10 is fixedly connected to the mounting plate 80. The length of the mounting plate 80 is greater than that of the base plate 50, and the mounting plate 80 facilitates the fixed connection between the base plate 50 and the tripod. When the camera is relatively large, the mounting plate 80 plays a balancing role.

[0065] like Figures 1 to 17As shown, in this embodiment, there are two locking members 40, and one side of the connecting block 90 is fixed on the camera. When the camera is equipped with the connecting block 90, the connecting block 90 is placed in the receiving groove 11 of the base 10. Under the gravity of the camera and the connecting block 90 and the external force, the connecting block 90 presses on the upper end of the trigger pin 30 so that the trigger pin 30 retracts into the through hole 13, and the limiting protrusion 31 of the trigger pin 30 disengages from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the two movable locking members 40 to approach each other, so that the two locking members 40 lock the connecting block 90, that is, after the connecting block 90 is pressed into the receiving groove 11, the two locking members 40 lock the connecting block 90. ​​The two locking members 40 lock the connecting block 90 and are locked and fixed firmly. Under the action of external force, the movable button 20 is pressed, so that the movable button 20 moves toward the inner end of the movable button 20, and the movable button 20 drives the two locking members 40 to move away from each other, so that the two locking members 40 open the connecting block 90. ​​At the same time, under the action of the thrust structure 70, the limiting protrusion 31 of the trigger pin 30 is pushed into the limiting groove 22, and the trigger pin 30 plays a positioning role for the movable button 20 to prevent the movable button 20 from bouncing open under the action of the reset elastic device 60. That is, by pressing the movable button 20, the connecting block 90 can be taken out of the accommodating groove 11, which facilitates the removal of the connecting block 90.

[0066] In some embodiments, as Figures 1 to 17 As shown, the locking member 40 can also be one, and an inclined flange is provided on the side of the inner wall of the accommodating groove 11 relative to the locking member 40. After the connecting block 90 is placed in the accommodating groove 11 of the base 10, the inclined flange is clamped at the edge of the connecting block 90. ​​Under the gravity of the camera, the connecting block 90 and the external force, the connecting block 90 presses on the upper end of the trigger pin 30 so that the trigger pin 30 retracts into the through hole 13, and the limiting protrusion 31 of the trigger pin 30 disengages from the limiting groove 22. Under the action of the reset elastic device 60, the movable button 20 moves toward the slot 15 and drives the locking members 40 to approach each other, so that the locking member 40 locks the other side edge of the connecting block 90, that is, after the connecting block 90 is pressed into the accommodating groove 11, the inclined flange clamps one side edge of the connecting block 90, and a locking member 40 locks one side edge of the connecting block 90, and the connecting block 90 is locked and fixed firmly. Under the action of external force, the movable button 20 is pressed, so that the movable button 20 moves toward the inner end of the movable button 20. The movable button 20 drives the locking member 40 away from the inclined flange, so that the locking member 40 loosens one side edge of the connecting block 90, and the connecting block 90 can be taken out of the accommodating groove 11, making it easy to take out the connecting block 90.

[0067] like Figures 1 to 17 As shown, the mounting plate 80 is penetrated by a mounting hole 81 , and the base plate 50 is fixedly connected to the mounting plate 80 after passing through the mounting hole 81 .

[0068] Another embodiment of the present invention is:

[0069] A connecting and fixing device includes a connecting block 90 fixedly connected to a photographic device and also includes a quick-install and quick-disinstall structure.

[0070] The above is a specific embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. For example, a camera shoulder strap or wrist strap can also be connected to the photographic equipment through the quick-install and quick-release structure and connecting and fixing device of the present invention, and can be quickly installed and removed. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A quick assembly and disassembly structure, characterized in that: include: A base, wherein the upper surface of the base is provided with a receiving groove, the receiving groove is used to receive the connecting block, the lower surface of the base is provided with a movable groove, the base is penetrated by a through hole, the receiving groove is connected with the movable groove through the through hole, at least one side of the two sides of the movable groove is provided with a mounting groove, the mounting groove is connected with the receiving groove, and the side wall of the movable groove is provided with a slot hole; A movable button, wherein the movable button is movably arranged in the movable groove, the outer end of the movable button moves in the slot hole, and the movable button moves back and forth in the movable groove through a reset elastic device. The movable button is provided with a movable groove along the moving direction, and a limit groove is provided on the inner wall of the movable groove; A trip pin is movably arranged in the through hole, and a limiting protrusion is provided on the outer wall of the lower end of the trip pin; at least one locking member, the locking member being located in the mounting groove; A bottom plate, the bottom plate and the lower surface of the base cover each other, and a thrust structure is provided inside the bottom plate, the thrust structure is used to push the trigger pin away from the bottom plate; When the connecting block is installed in the receiving groove and the bottom of the connecting block presses the trip pin, the limiting protrusion of the trip pin disengages from the limiting groove. Under the action of the reset elastic device, the movable button moves toward the slot hole and drives the locking member toward the trip pin, so that the locking member locks the connecting block. Under the action of external force, the movable button is driven to move toward the inner end of the movable button, and the movable button drives the locking member away from the trigger pin, so that the locking member opens the connecting block. Under the action of the thrust structure, the limiting protrusion of the trigger pin is pushed into the limiting groove.

2. The quick assembly and disassembly structure according to claim 1, characterized in that: At least one side of the movable button is provided with an inclined slide rail, one side of the locking piece is slidably connected to the inclined slide rail, and the other side is provided with a locking surface. When the connecting block is installed in the accommodating groove and the bottom of the connecting block presses the trigger pin, the limiting protrusion of the trigger pin disengages from the limiting groove. Under the action of the reset elastic device, the movable button moves toward the slot hole and drives the locking surface of the locking piece toward the trigger pin so that the locking surface locks the connecting block. Under the action of external force, the movable button is pressed, so that the movable button moves toward the inner end of the movable button. The movable button drives the locking surface of the locking piece away from the trigger pin, so that the locking surface opens the connecting block.

3. The quick assembly and disassembly structure according to claim 2, characterized in that: The locking surface is an inclined surface inclined upward.

4. The quick assembly and disassembly structure according to claim 1, characterized in that: The movable button is provided with a guide groove along the moving direction, a guide post is provided in the movable groove, and the guide post is slidably connected to the guide groove.

5. The quick assembly and disassembly structure according to claim 1, characterized in that: A limiting column is provided in the movable groove.

6. The quick assembly and disassembly structure according to claim 1, characterized in that: A fixing hole is provided at the inner end of the movable button, one end of the resetting elastic device is located in the fixing hole, and the other end is connected to the inner wall of the limiting groove.

7. The quick assembly and disassembly structure according to claim 1, characterized in that: The thrust structure includes a first magnetic part, and the trigger pin is provided with a second magnetic part that repel each other with the first magnetic part. Under the action of external force, the movable button is driven to move toward the inner end of the movable button. The movable button drives the locking part away from the trigger pin, so that the locking part opens the connecting block. Under the mutual repulsive force between the first magnetic part and the second magnetic part, the limiting protrusion of the trigger pin is pushed into the limiting groove.

8. The quick assembly and disassembly structure according to any one of claims 1 to 7, characterized in that: The quick assembly and disassembly structure further includes a mounting plate for fixing to a tripod, and the bottom plate or base is fixedly connected to the mounting plate.

9. The quick assembly and disassembly structure according to claim 8, characterized in that: The mounting plate is penetrated by a mounting hole, and the bottom plate is fixedly connected to the mounting plate after passing through the mounting hole.

10. A connecting and fixing device, comprising a connecting block fixedly connected to a photographic device, characterized in that: It also includes the quick assembly and disassembly structure according to any one of claims 1 to 9.

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