Monomer type quick release system

Abstract

The invention relates to the technical field of photographic equipment, in particular to a single quick release system which comprises a main body. One end of each movable screw block is located in the main body, the other end of each movable screw block protrudes out of the surface of the main body, and local threads are arranged on the outer side wall of the end, protruding out of the surface of the main body, of each movable screw block; the pressing and ejecting mechanism is connected with each movable screw block and enables the movable screw blocks to be folded towards the central axis, and one end of the ejecting mechanism is movably connected with the movable screw blocks in an abutting mode and enables the movable screw blocks to be opened back to the central axis. The defect that a quick release system is mostly composed of two parts, a quick release plate connected with the camera is used along with the camera and is prone to being lost is overcome, the quick release system is only provided with one single component, when the camera is repeatedly disassembled and assembled, the whole camera is separated from a main body, no other single part is attached, and the camera is not prone to being lost; and the holding hand feeling and the weight of the camera are not influenced.

Description

Technical Field

[0001] The present application relates to the technical field of photographic equipment, and in particular to a single-body quick-release system. Background Art

[0002] Currently, mainstream camera quick-release systems usually require two components: a quick-release plate connected to the camera, and a base connected to a structure such as a gimbal or tripod. The base generally has a standard Arc'teryx dovetail slot, which is clipped and fixed to the gimbal or tripod, while the quick-release plate and the base are quickly disassembled and fixed through various locking parts, thereby achieving rapid disassembly of the camera. The existing technology for achieving convenient and quick disassembly between the quick-release plate and the base mainly achieves more efficient and convenient separation and locking by changing the locking structure and method of the locking parts.

[0003] Although this quick-release system with two fixings has greatly improved the efficiency of quick-release of the camera, there are still some problems in actual application. That is, the quick-release plate has always been fixed to the camera, while the base has always been fixed to a support frame such as a gimbal or a tripod. When the camera needs to be disassembled for shooting, the quick-release plate is generally removed together with the camera: on the one hand, the quick-release plate will increase the weight of the camera and affect the grip of the camera; on the other hand, since the quick-release plate and the camera are only connected by standard screws, the quick-release plate is easy to fall off during repeated shooting with the camera after removal, or the quick-release plate is actively removed due to hand feel issues. Once the quick-release plate is separated from the camera, it is extremely easy to lose due to its small size. At present, the quick-release systems of different manufacturers on the market mostly use different quick-release connection methods, and the quick-release plates and bases of different manufacturers are mostly not interchangeable. Therefore, once the quick-release plate is lost, the user needs to purchase a matching model specifically, which will cause a lot of inconvenience and greatly affect the convenience and continuity of equipment use. Summary of the Invention

[0004] Based on this, the present invention addresses the pain points of traditional camera quick-release systems due to their dual-component design. This is because the quick-release plate connected to the camera not only affects the grip and increases the weight of the device during subsequent use, but is also easily lost due to its small size and difficult to replace. The present invention proposes a groundbreaking single-piece quick-release system. This invention abandons the traditional dual-component architecture and adopts a single-component design. During frequent camera assembly and disassembly, the camera can be completely detached without the need to carry any additional parts. This design not only fundamentally eliminates the risk of parts loss, but also ensures the original feel and lightweight design of the camera when held. This revolutionizes the quick-release technology of photographic equipment, significantly improving the user experience and safety, and represents a creative improvement.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A one-piece quick-release system includes a main body, one side of which is provided with an Acre dovetail groove for connecting to an external support member; The invention also includes a plurality of movable screw blocks, one end of which is located in the main body and the other end of which protrudes from the other side surface of the main body. The plurality of movable screw blocks are evenly distributed circumferentially around a central axis, the central axis being perpendicular to the surface of the main body, and a partial thread is provided on the outer side wall of the end of each movable screw block protruding from the surface of the main body; It also includes a spring-loaded mechanism connected to each of the movable screw blocks and causing them to retract toward the central axis, and a push-opening mechanism having one end movably abutting against a plurality of the movable screw blocks and causing them to open away from the central axis; When the movable screw blocks are in an open state, one end of the movable screw blocks protruding from the surface of the main body forms an intermittent circular profile; when the movable screw blocks are in a retracted state, one end of the movable screw blocks protruding from the surface of the main body forms a closed profile, and the maximum width of the closed profile is smaller than the inner diameter of the intermittent circular profile.

[0006] When the present invention is used, the Arc'teryx dovetail groove of the main body is fixedly connected to an external support such as a pan head or a tripod, and one end of a plurality of movable screw blocks protruding from the surface of the main body is connected to a standard screw hole of the camera, thereby realizing the connection between the camera and the external support. The quick-release operation of the present invention realizes the quick disassembly and connection of the camera through the interaction between the pressure spring mechanism and the push-open mechanism and a plurality of movable screw blocks: when the plurality of movable screw blocks are in a retracted state under the action of the pressure spring mechanism, one end of the plurality of movable screw blocks protruding from the surface of the main body forms a closed contour, and at this time, the ends of the plurality of movable screw blocks can be quickly plugged into or disengaged from the standard screw holes of the camera; the push-open mechanism abuts against the plurality of movable screw blocks and opens them away from the central axis until an intermittent circular contour is formed, and the local threads on the outer side walls of the plurality of movable screw blocks can be inserted into the standard screw holes of the camera and mesh or clamped with the internal threads of the standard screw holes, thereby realizing quick clamping of the camera; when the connection needs to be released, the abutment of the push-open structure on the plurality of movable screw blocks is released. At this time, under the action of the pressure spring mechanism, the plurality of movable screw blocks will be retracted into a closed contour smaller than the standard screw holes, thereby realizing quick connection and quick disassembly of the camera.

[0007] The outstanding innovation of the present invention is that it abandons the traditional dual-component architecture, and the connection with the external support and the connection mechanism with the camera are all concentrated on one main body, using only a single component design. During the frequent loading and unloading of the camera, the camera can be completely detached as a whole without any other single parts attached. It is not easy to lose and will not affect the grip and weight of the camera. There is no need to carry any additional parts. This design not only eliminates the risk of parts loss from the root, but also ensures the original feel and lightweight of the camera when holding it. It has brought subversive changes to the quick-release technology of photographic equipment, significantly improving the user's operating experience and usage safety, and is a creative improvement.

[0008] It should also be noted that the integrated screws on the traditional quick-release plate need to be fastened to the camera, and the screws need to be tightened one by one onto the camera using a screwdriver. The screws are small in size, and the operation takes a long time. Especially in harsh environments, such as cold or windy weather, it is very difficult to tighten the screws with a screwdriver outdoors. The present application does not require carrying an additional tightening screwdriver and using it for tightening operations. After aligning the camera's standard screw hole with the movable screw block of the present application, the movable screw block can be opened around the central axis by simply adjusting the top-opening mechanism to achieve rapid engagement. In addition, when operating in some tricky shooting positions, such as wall-mounted or tilted camera positions, quick operation is also possible, greatly improving convenience and practicality.

[0009] Furthermore, each movable screw block is provided with a guide protrusion at one end located on the main body, and a guide groove is defined on the main body for the guide protrusion to slide, with the axis of the guide groove being perpendicular to the central axis. Because the movable screw block is frequently retracted and opened, and the end extending from the main body is relatively small, its precise and stable movement must be ensured. The guide groove and the guide protrusion cooperate to provide guidance and positioning, ensuring stable movement in both the retraction and opening directions.

[0010] Furthermore, the number of the movable screw blocks is at least two, and the movable screw blocks form the outer contour of a 1 / 4 inch standard screw or a 3 / 8 inch standard screw when in the open state.

[0011] Furthermore, the partial threads of the movable screw block form intermittent continuous threads of a 1 / 4 inch standard screw or a 3 / 8 inch standard screw.

[0012] It should be noted that the continuous thread referred to herein refers to a continuous thread that is interrupted by a cutout portion of the full thread. This cutout portion is the portion of the movable screw block that is rationally cut off during the manufacturing process to reduce the size of the movable screw block to a smaller size than the outer contour after shrinking, or the portion lost due to cutting loss when the full standard screw is split into separate pieces to form the movable screw block. When in the open position, the continuous thread can fully engage the threads of a 1 / 4-inch standard screw or a 3 / 8-inch standard screw. Currently, camera screws on the market primarily come in two sizes: a 1 / 4-inch standard screw (1 / 4-inch diameter, 20 threads per inch) and a 3 / 8-inch standard screw (3 / 8-inch diameter, 16 threads per inch). External support components such as pan / tilts and tripods currently use the Arc'teryx standard interface. Therefore, designing the movable screw block to fit a 1 / 4-inch standard screw or a 3 / 8-inch standard screw after opening allows it to fit most camera equipment. Simultaneously, the Arc'teryx dovetail groove on the main body can fit most external support components, greatly improving the versatility of the present invention and reducing the cost of purchasing additional accessories for consumers.

[0013] Furthermore, the spring-pressing mechanism includes a first spring having one end connected to the movable screw block and the other end connected to the main body. When the movable screw blocks are in a retracted state, the first spring is in a compressed state.

[0014] It should be noted that during the retraction of the movable screw block, the elastic force of the first spring is used to apply a thrust to the movable screw block, so that it can be retracted when the opening mechanism loses its function. When the ends of several movable screw blocks are retracted and abut against each other, the first spring is still in a compressed state and still applies a thrust to the movable screw block. This is to maintain the retracted state and ensure that it will not open or relax during the quick plugging and unplugging process with the camera, thereby affecting the plugging and unplugging, thereby ensuring the effectiveness of quick plugging.

[0015] Furthermore, the ejection mechanism includes an ejection block whose axis overlaps with the central axis, the end of the ejection block facing the movable screw block is an ejection end, the end of the ejection block facing away from the movable screw block is an inclined end, and the inner sides of several movable screw blocks are provided with inclined inner walls that match the outer side walls of the ejection ends; It also includes a movable block that is limited and movable in the main body, the movable block is provided with an inclined surface protrusion corresponding to the inclination of the inclined surface end, the inclined surface end is in sliding contact with the inclined surface protrusion, and the top block moves on the central axis; It also includes an adjusting rod with one end threadedly connected to the movable block and the other end passing through the outside of the main body. The movable block is provided with a threaded hole that acts on the adjusting rod.

[0016] The cam is pressed against the locking cam of the locking cam, and the cam is pressed against the locking cam of the locking cam, so that the locking cam is pressed against the locking cam of the locking cam, and the cam is pressed against the locking cam of the locking cam, so that the cam is pressed against the locking cam of the locking cam, and the cam is pressed against the locking cam of the locking cam.

[0017] Furthermore, the end of the adjusting rod located outside the main body is further provided with a knob handle. Providing the knob handle and providing anti-slip grooves thereon can improve the rotation efficiency, thereby improving the convenience and comfort of use.

[0018] Furthermore, the push-open mechanism further includes a tension adjustment nut having one end extending through the main body and movably abutting against the outer side wall of the adjustment rod. The tension adjustment nut can movably abut against the outer side of the adjustment rod at one end to adjust the damping of the adjustment rod during rotation, thereby facilitating user-adjusted operation.

[0019] Furthermore, the opening mechanism also includes a second spring with one end connected to the movable block and the other end connected to the main body. There are two second springs, and the two second springs are symmetrically arranged on both sides of the adjusting rod; when several of the movable screw blocks are retracted, the second spring is in a compressed state.

[0020] It should be noted that the second spring is provided in the movement direction of the movable block in order to keep its movement smooth and stable when the movable block moves left and right, and to neutralize the slight deflection of the movable block caused by the rotation of the adjusting rod: when several of the movable screw blocks are retracted, the second spring is in a compressed state, and the second spring continues to provide a restoring force, so that when the adjusting rod rotates to eject and open several movable screw blocks, the second spring is in a compressed state, and also has a certain compression effect on the movable block, keeping the movement balanced and stable, and at the same time reducing resistance. The second spring gradually returns to normal state, and when the adjusting rod rotates to release the ejection of several movable screw blocks, the second spring is still in a compressed state, and continues to maintain the compression effect on the movable block, keeping the movement balanced and stable, and avoiding shaking or deviation.

[0021] Furthermore, the ejection mechanism further includes a guide plate, which is located between the main body and the movable block. One end of the guide plate is limited on both sides of the intersection of the inclined surface end and the inclined surface protrusion and allows the ejection block to move only on its axis.

[0022] It should be noted that the ejection end of the ejector block extends out of the surface of the main body and is located on the inner side of several movable screw blocks. The inclined end of the ejector block slides and abuts against the inclined protrusion inside the main body, so the ejector block has a certain moving space in the up and down directions. The inclined protrusion acts on the inclined end to produce a left and right friction force. Therefore, in order to prevent the ejector block from offsetting or moving in the left and right directions during the sliding process, a guide plate is provided to reasonably limit the moving space of the ejector block to ensure that the ejector block can only move on its axis, thereby ensuring the stable ejection of the ejector block and the uniform opening of several movable screw blocks.

[0023] Furthermore, an anti-slip strip is provided on the surface of the main body on the side where the movable screw block protrudes. The side where the movable screw block protrudes is used for quick assembly and disassembly of the camera. The anti-slip strip on this side ensures friction between the camera end and the main body of the present invention, improving the stability of the connection.

[0024] Furthermore, there are at least two anti-slip strips, which are arranged on both sides of the movable screw block.

[0025] Furthermore, the main body is provided with a plurality of hollow areas. The hollow areas are provided on the main body to reduce the weight of the entire invention, achieve a more lightweight design, and facilitate the carrying and use of consumers.

[0026] Compared with the prior art, the present invention has the following beneficial effects: (1) The outstanding innovation of the present invention is that it abandons the traditional dual-component structure, and the connection with the external support and the connection mechanism with the camera are all concentrated on one main body, and only a single component design is adopted. During the frequent loading and unloading of the camera, the camera can be completely detached as a whole without any other single parts attached. It is not easy to lose, and it does not affect the grip and weight of the camera. There is no need to carry any additional parts. This design not only eliminates the risk of parts loss from the root, but also ensures the original feel and lightweight of the camera when holding it, bringing a subversive change to the quick-release technology of photographic equipment, significantly improving the user's operating experience and use safety, and is a creative improvement.

[0027] (2) The quick-release operation of the present invention realizes the quick disassembly and connection of the camera through the interaction between the spring-loaded mechanism and the push-open mechanism and the plurality of movable screw blocks: when the plurality of movable screw blocks are in a retracted state under the action of the spring-loaded mechanism, the ends of the plurality of movable screw blocks protruding from the surface of the main body form a closed contour, and at this time, the ends of the plurality of movable screw blocks can be quickly plugged into or removed from the standard screw holes of the camera; the push-open mechanism abuts against the plurality of movable screw blocks and opens them with their backs to the central axis, and the local threads on the outer side walls of the plurality of movable screw blocks can be inserted into the standard screw holes of the camera and meshed or clamped with the internal threads of the standard screw holes, thereby realizing quick clamping of the camera; when it is necessary to release the connection, the abutment of the push-open structure on the plurality of movable screw blocks is released, and at this time, under the action of the spring-loaded mechanism, the plurality of movable screw blocks will be retracted into a closed contour smaller than the standard screw holes, thereby realizing quick connection and quick disassembly of the camera.

[0028] (3) The present invention eliminates the need to carry an additional screwdriver for tightening. After aligning the standard screw hole of the camera with the movable screw block of the present invention, the movable screw block can be opened around the central axis by adjusting the opening and closing mechanism, achieving rapid engagement. Furthermore, the invention allows for quick operation even in challenging shooting positions, such as wall-mounted or tilted camera positions, greatly improving convenience and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the three-dimensional structure of the movable screw block in an open state according to one embodiment; Figure 2 for Figure 1 Side view of; Figure 3 A schematic diagram of the three-dimensional structure of a movable screw block in a retracted state according to an embodiment; Figure 4 for Figure 3 Side view of; Figure 5 for Figure 1 A top view of Figure 6 for Figure 3 A top view of Figure 7 for Figure 5 Cross-sectional view at AA in the middle; Figure 8 for Figure 6 Cross-sectional view at the middle BB; Figure 9 An exploded view of a quick release system in one embodiment; Figure 10 This is a schematic structural diagram of a movable screw block in one embodiment; Figure 11 Schematic diagram of the structure of the top block in one embodiment.

[0030] 1-main body, 11-Aka dovetail groove, 12-guide groove, 15-bar hollow, 16-through hole, 2-movable screw block, 21-threaded end, 22-base end, 23-guide protrusion, 24-inner wall of the inclined plane, 25-plug-in hole, 3-pressing mechanism, 4-top opening mechanism, 41-top block, 411-top end, 412-inclined end, 42-movable block, 421-inclined protrusion, 43-adjusting rod, 44-knob handle, 45-tension adjustment nut, 46-second spring, 47-guide plate, 6-anti-slip strip, 100-intermittent circular profile, 200-closed profile. DETAILED DESCRIPTION

[0031] The present invention is further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0032] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] Example 1 like Figures 1 to 4 As shown, a single-body quick release system comprises a main body 1, one side of the main body 1 is provided with an Aka dovetail groove 11 for connecting to an external support member; The main body 1 further includes a plurality of movable screw blocks 2, one end of which is located inside the main body 1 and the other end of which protrudes from the other side surface of the main body 1. The plurality of movable screw blocks 2 are evenly distributed circumferentially around the central axis, the central axis being perpendicular to the surface of the main body 1, and a partial thread is provided on the outer side wall of the end of each movable screw block 2 protruding from the surface of the main body 1; like Figure 7 and Figure 8 As shown, it also includes a spring-loaded mechanism 3 that is connected to each movable screw block 2 and causes it to be retracted toward the central axis, and a push-opening mechanism 4 that has one end movably abutting against a plurality of movable screw blocks 2 and causes them to open away from the central axis. like Figure 5 and Figure 6 As shown, when the plurality of movable screw blocks 2 are in the open state, one end of the plurality of movable screw blocks 2 protruding from the surface of the main body 1 forms an intermittent circular profile 100; when the plurality of movable screw blocks 2 are in the retracted state, one end of the plurality of movable screw blocks 2 protruding from the surface of the main body 1 forms a closed profile 200, and the maximum width of the closed profile 200 is smaller than the inner diameter of the intermittent circular profile 100.

[0035] When this embodiment is in use, the Arc's dovetail groove 11 of the main body 1 is fixedly connected to an external support such as a pan head or tripod, and one end of a plurality of movable screw blocks 2 protruding from the surface of the main body 1 is connected to the standard screw hole of the camera, thereby realizing the connection between the camera and the external support. The quick-release operation of this embodiment realizes the rapid disassembly and connection of the camera through the interaction between the spring-loaded mechanism 3 and the push-open mechanism 4 and the plurality of movable screw blocks 2: when the plurality of movable screw blocks 2 are in a retracted state under the action of the spring-loaded mechanism 3, the ends of the plurality of movable screw blocks 2 protruding from the surface of the main body 1 form a closed profile 200, at which time the ends of the plurality of movable screw blocks 2 can be quickly plugged into or removed from the standard screw holes of the camera; the push-open mechanism 4 abuts against the plurality of movable screw blocks 2 and opens them away from the central axis until an intermittent circular profile 100 is formed, and the partial threads on the outer walls of the plurality of movable screw blocks 2 can be inserted into the standard screw holes of the camera and mesh or engage with the internal threads of the standard screw holes, thereby realizing rapid clamping of the camera; when the connection needs to be released, the abutment of the push-open structure on the plurality of movable screw blocks 2 is released. At this time, under the action of the spring-loaded mechanism 3, the plurality of movable screw blocks 2 will be retracted into a closed profile 200 smaller than the standard screw holes, thereby realizing rapid connection and removal of the camera.

[0036] The outstanding innovation of this embodiment is that the quick-release system of this embodiment has only one single component, and the connection mechanism with the external support member and the connection mechanism with the camera are all concentrated on a single body 1. Therefore, during normal use, the quick-release system of this embodiment is always fixed to the external support member. When the camera is repeatedly disassembled and assembled, the camera as a whole is separated from the body 1 without being attached to any other single parts. It is not easy to lose and does not affect the grip and weight of the camera. It is a creative improvement.

[0037] Traditional quick-release plates have integrated screws that need to be tightened onto the camera using a screwdriver. The screws are small and time-consuming to tighten, especially in harsh environments like cold or windy weather. Tightening the screws outdoors with a screwdriver can be challenging. The present invention eliminates the need to carry a separate screwdriver to tighten the screws. After aligning the camera's standard screw hole with the present invention's retractable screw block, the screw block can be opened around its central axis by adjusting the push-open mechanism 4, achieving rapid engagement. Furthermore, quick operation is possible in challenging shooting positions, such as wall-mounted or tilted, greatly improving convenience and practicality.

[0038] like Figure 9 and Figure 10 As shown, each movable screw block 2 includes an integrally formed threaded end 21 and a base end 22 . The base end 22 is a fan-shaped base. An escape space for the base end 22 to be folded and opened is provided on the main body 1 . Partial threads are provided on the outer wall of the threaded end 21 .

[0039] like Figure 9 As shown, the base end 22 is designed as a fan-shaped base, which can also have a circular outline during the folding and opening process, so that adjacent movable screw blocks 2 will not interfere with each other. Moreover, since the threaded end 21 needs to cooperate with the threaded hole of the camera under force, a relatively stable base is required for support and fixation, so the volume of the base end 22 should be larger and more stable.

[0040] like Figure 9 As shown, each movable screw block 2 is further provided with a guide protrusion 23 on its base end 22. A guide groove 12 is defined in the main body 1 for the guide protrusion 23 to slide within, with the axis of the guide groove 12 perpendicular to the central axis. Because the movable screw block 2 is frequently retracted and opened, and the threaded end 21 is relatively small, precise and stable retraction and opening movements are essential. The guide groove 12 and the guide protrusion 23 on the main body 1 cooperate to provide guidance and position control, ensuring stable movement in both the retraction and opening directions.

[0041] In this embodiment, the number of the movable screw blocks 2 is at least three, and the movable screw blocks 2 form the outer contour of a 1 / 4 inch standard screw when in the open state.

[0042] In this embodiment, the partial threads of the three movable screw blocks 2 form a continuous thread of a 1 / 4 inch standard screw that is interrupted.

[0043] In this embodiment, when the three movable screw blocks 2 are in the retracted state, the closed profile 200 formed by the threaded ends 21 of the three movable screw blocks 2 is a non-circular profile. Instead, the closed profile 200 is in the shape of a curved triangle, also known as a Lello triangle. The maximum width of the curved triangle is less than the inner diameter of the outer profile of a 1 / 4-inch standard screw.

[0044] It should be noted that the continuous thread referred to herein is a continuous thread that is interrupted by a cutoff portion of the complete thread. The cutoff portion is the portion of the movable screw block 2 that is reasonably cut off during the processing process to make it smaller than the outer contour after shrinking, or the portion of the missing portion that is inevitably lost when the complete standard screw is split into pieces to form the movable screw block 2 during the processing process. When the continuous thread is open, it can fully engage the threads of a 1 / 4-inch standard screw. Currently, camera screw thread sizes on the market mainly come in two specifications: a 1 / 4-inch standard screw with a diameter of 1 / 4 inch and 20 threads per inch, and a 3 / 8-inch standard screw with a diameter of 3 / 8 inch and 16 threads per inch. Currently, the interfaces of external support components such as pan / tilts and tripods on the market are mostly Arca standard interfaces. Therefore, designing the open movable screw block 2 as a 1 / 4-inch standard screw can adapt to most camera equipment. At the same time, the Arca dovetail groove 11 on the main body 1 can adapt to most external support components, greatly improving the versatility of this embodiment and reducing the cost of purchasing other accessories for consumers.

[0045] like Figure 7 and Figure 8 As shown, the spring-pressing mechanism 3 includes a first spring with one end connected to the movable screw block 2 and the other end connected to the main body 1. When the movable screw blocks 2 are in the retracted state, the first spring is in a compressed state.

[0046] In this embodiment, Figure 10 As shown, the base end 22 of the movable screw block 2 is further provided with an inserting hole 25 for fixing and guiding the first spring.

[0047] It should be noted that, during the retraction process of the movable screw block 2, the elastic force of the first spring is used to apply a thrust to the movable screw block 2, so that it can be retracted when the action of the opening mechanism 4 is lost. When the ends of several movable screw blocks 2 are retracted and abut against each other, the first spring is still in a compressed state and still applies a thrust to the movable screw block 2. This is to maintain the retracted state and ensure that it will not open or relax during the quick plugging and unplugging process with the camera to affect the plugging and unplugging, thereby ensuring the effectiveness of the quick plugging.

[0048] like Figure 7 and Figure 11 As shown, the ejection mechanism 4 includes an ejection block 41 whose axis overlaps with the central axis. The end of the ejection block 41 facing the movable screw block 2 is an ejection end 411, and the end of the ejection block 41 facing away from the movable screw block 2 is a bevel end 412. The inner sides of the movable screw blocks 2 are provided with beveled inner walls 24 that match the outer side walls of the ejection ends 411. In this embodiment, the ejection end 411 is in a frustum shape, and the inner side of the movable screw block 2 is provided with an arc-shaped inclined inner wall that matches the outer side wall of the frustum-shaped ejection end 411 .

[0049] like Figure 9 As shown, it also includes a movable block 42 that is limited and movable in the main body 1. The movable block 42 is provided with an inclined surface protrusion 421 corresponding to the inclination of the inclined surface end 412. The inclined surface end 412 slides and abuts against the inclined surface protrusion 421, and the top block 41 moves on the central axis. like Figure 7 and Figure 8 As shown, it also includes an adjustment rod 43 with one end threadedly connected to the movable block 42 and the other end passing through the outside of the main body 1. The movable block 42 is provided with a threaded hole that interacts with the adjustment rod 43.

[0050] The cam 42 is then moved back and forth to move the screw 42 in a direction of rotation relative to the cam 42. The cam 42 is then moved back and forth to move the screw 42 in a direction of rotation relative to the cam 42.

[0051] like Figure 7 and Figure 8As shown, the end of the adjusting rod 43 outside the main body 1 is further provided with a knob handle 44, and the outer wall of the knob handle 44 is provided with a plurality of anti-slip grooves. The knob handle 44 and the anti-slip grooves thereon can improve the rotation efficiency, thereby improving the convenience and comfort of use.

[0052] like Figure 7 and Figure 8 As shown, the push-opening mechanism 4 further includes a tension adjustment nut 45, one end of which passes through the main body 1 and movably abuts against the outer side wall of the adjustment rod 43. The tension adjustment nut 45 can movably abut against the outer side of the adjustment rod 43 at one end, and can adjust the damping when the adjustment rod 43 rotates, thereby facilitating different users to adjust the operating feel to suit their own needs.

[0053] like Figure 7 and Figure 8 As shown, the opening mechanism 4 also includes a second spring 46 with one end connected to the movable block 42 and the other end connected to the main body 1. There are two second springs 46, and the two second springs 46 are symmetrically arranged on both sides of the adjusting rod 43; when the several movable screw blocks 2 are retracted, the second springs 46 are in a compressed state.

[0054] In this embodiment, the movable block 42 is further provided with a mounting hole for fixing and guiding the second spring 46 .

[0055] It should be noted that the second spring 46 is provided in the movement direction of the movable block 42 in order to keep its movement smooth and stable when the movable block 42 moves left and right, and to neutralize the slight deflection of the movable block 42 caused by the rotation of the adjusting rod 43: when the plurality of movable screw blocks 2 are retracted, the second spring 46 is in a compressed state, and the second spring 46 continues to provide a restoring force, so that when the adjusting rod 43 rotates to eject and open the plurality of movable screw blocks 2, the second spring 46 is in a compressed state, and also has a certain pressure-elastic effect on the movable block 42, keeping the movement balanced and stable, and at the same time reducing resistance. The second spring 46 gradually returns to a normal state, and when the adjusting rod 43 rotates to release the ejection of the plurality of movable screw blocks 2, the second spring 46 is in a compressed state, and also has a certain pressure-elastic effect on the movable block 42, keeping the movement balanced and stable, and avoiding shaking or deviation.

[0056] like Figure 8 and Figure 9 As shown, the ejection mechanism 4 further includes a guide plate 47, which is located between the main body 1 and the movable block 42. One end of the guide plate 47 is limited on both sides of the intersection of the inclined end 412 and the inclined protrusion 421 so that the ejection block 41 can only move on its axis.

[0057] It should be noted that the ejection end 411 of the ejector block 41 extends out of the surface of the main body 1 and is located on the inner side of the several movable screw blocks 2. The inclined end 412 of the ejector block 41 slides and abuts against the inclined protrusion 421 inside the main body 1. Therefore, the ejector block 41 has a certain moving space in the up and down directions. The inclined protrusion 421 exerts a friction force in the left and right directions on the inclined end 412. Therefore, in order to prevent the ejector block 41 from being offset or moved in the left and right directions during the sliding process, a guide plate 47 is provided to reasonably limit the moving space of the ejector block 41 to ensure that the ejector block 41 can only move on its axis, thereby ensuring the stable ejection of the ejector block 41 and the even opening of the several movable screw blocks 2.

[0058] Example 2 This embodiment is similar to embodiment 1, except that: In this embodiment, the number of the movable screw blocks 2 is at least three, and the movable screw blocks 2 form the outer contour of a 3 / 8 inch standard screw when in the open state.

[0059] In this embodiment, the partial threads of the three movable screw blocks 2 form a continuous thread of a 3 / 8 inch standard screw that is interrupted.

[0060] In this embodiment, when the three movable screw blocks 2 are in the retracted state, the closed profile 200 formed by the threaded ends 21 of the three movable screw blocks 2 is a non-circular profile. Instead, the closed profile 200 is in the shape of a curved triangle, also known as a Lello triangle. The maximum width of the curved triangle is less than the inner diameter of the outer profile of a 3 / 8-inch standard screw.

[0061] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0062] Example 3 This embodiment is similar to embodiment 1, except that: In this embodiment, the number of the movable screw blocks 2 is at least two, and the movable screw blocks 2 form the outer contour of a 1 / 4 inch standard screw when in the open state.

[0063] In this embodiment, the partial threads of the two movable screw blocks 2 form a continuous thread of a 1 / 4 inch standard screw that is interrupted.

[0064] In this embodiment, when the two movable screw blocks 2 are in the retracted state, the closed contour 200 formed by the threaded ends 21 of the two movable screw blocks 2 is a non-circular contour. The closed contour 200 is elliptical, and the maximum long diameter of the ellipse is smaller than the inner diameter of the outer contour of a 1 / 4 inch standard screw.

[0065] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0066] Example 4 This embodiment is similar to embodiment 1, except that: In this embodiment, the number of the movable screw blocks 2 is at least two, and the movable screw blocks 2 form the outer contour of a 3 / 8 inch standard screw when in the open state.

[0067] In this embodiment, the partial threads of the two movable screw blocks 2 form a continuous thread of a 3 / 8 inch standard screw that is interrupted.

[0068] In this embodiment, when the two movable screw blocks 2 are in the retracted state, the closed contour 200 formed by the threaded ends 21 of the two movable screw blocks 2 is a non-circular contour. The closed contour 200 is elliptical, and the maximum long diameter of the ellipse is smaller than the inner diameter of the outer contour of a 3 / 8 inch standard screw.

[0069] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0070] Example 5 This embodiment is similar to embodiment 1, except that: like Figure 1 and Figure 3 As shown, the main body 1 is also provided with an anti-slip strip 6 on the side where the movable screw block 2 protrudes. The protruding side of the movable screw block 2 is used for quick disassembly and assembly with the camera. The provision of the anti-slip strip 6 on this side ensures friction between the camera end and the main body 1 of this embodiment, improving the stability of the connection.

[0071] In this embodiment, the anti-slip strip 6 is a plastic pad with a plurality of matrix protrusions on the surface.

[0072] In this embodiment, there are two anti-slip strips 6 , which are respectively arranged on both sides of the movable screw block 2 .

[0073] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0074] Example 6 This embodiment is similar to embodiment 1, except that: In this embodiment, a plurality of hollow areas are further provided on the main body 1. The hollow areas are provided on the main body 1 to reduce the overall weight of the embodiment, thereby achieving a more lightweight design and making it easier for consumers to carry and use.

[0075] like Figure 5 and Figure 6 As shown, the hollow area includes a strip-shaped hollow 15 opened on one side of the main body, and the part of the main body 1 on the side of the strip-shaped hollow 15 is a slender side, and the strip-shaped hollow 15 forms a ring eye that can be used to hang a rope; The hollow area also includes a plurality of through holes 16 opened on the main body 1 and passing through both sides of the main body 1. The through holes 16 avoid the movable screw block 2, the spring-pressing mechanism 3, the top-opening mechanism 4 and the Aka dovetail groove on the main body 1, and are used to reduce the overall weight of the main body 1 and achieve a lightweight design.

[0076] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0077] Obviously, the above-mentioned embodiments of this embodiment are merely examples for the purpose of clearly illustrating this embodiment, and are not intended to limit the implementation methods of this embodiment. Those skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this embodiment shall be included within the scope of protection of the claims of this embodiment.

Claims

1. A single-piece quick-release system, characterized in that: It comprises a main body (1), one side of the main body (1) is provided with an Aka dovetail groove (11) for connecting to an external support member; It also includes a plurality of movable screw blocks (2) with one end located in the main body (1) and the other end protruding from the other side surface of the main body (1), wherein the plurality of movable screw blocks (2) are evenly distributed circumferentially around a central axis, wherein the central axis is perpendicular to the surface of the main body (1), and a partial thread is provided on the outer side wall of the end of each movable screw block (2) protruding from the surface of the main body (1); It also includes a spring-loaded mechanism (3) that is connected to each of the movable screw blocks (2) and causes them to be retracted toward the central axis, and a push-opening mechanism (4) that has one end movably abutting against a plurality of the movable screw blocks (2) and causes them to open away from the central axis. When the plurality of movable screw blocks (2) are in an open state, one end of the plurality of movable screw blocks (2) protruding from the surface of the main body (1) forms an intermittent circular profile (100); when the plurality of movable screw blocks (2) are in a retracted state, one end of the plurality of movable screw blocks (2) protruding from the surface of the main body (1) forms a closed profile (200), and the maximum width of the closed profile (200) is smaller than the inner diameter of the intermittent circular profile (100).

2. The one-piece quick release system according to claim 1, characterized in that: Each movable screw block (2) is further provided with a guide protrusion (23) at one end located on the main body (1), and a guide groove (12) for the guide protrusion (23) to slide is provided on the main body (1), and the axis of the guide groove (12) is perpendicular to the central axis.

3. The one-piece quick release system according to claim 1, characterized in that: The number of the movable screw blocks (2) is at least two, and the movable screw blocks (2) form the outer contour of a 1 / 4 inch standard screw or a 3 / 8 inch standard screw when in an open state; the local threads of the movable screw blocks (2) form a continuous thread of a 1 / 4 inch standard screw or a 3 / 8 inch standard screw that is interrupted.

4. The one-piece quick release system according to claim 1, characterized in that: The spring-pressing mechanism (3) comprises a first spring having one end connected to the movable screw block (2) and the other end connected to the main body (1); when a plurality of the movable screw blocks (2) are in a retracted state, the first spring is in a compressed state.

5. The one-piece quick release system according to claim 1, characterized in that: The ejection mechanism (4) comprises an ejection block (41) whose axis overlaps with the central axis, an end of the ejection block (41) facing the movable screw block (2) is an ejection end (411), an end of the ejection block (41) facing away from the movable screw block (2) is an inclined surface end (412), and a plurality of movable screw blocks (2) are provided with an inclined surface inner wall (24) on the inner side thereof to match the outer side wall of the ejection end (411); It also includes a movable block (42) that is limited and movable in the main body (1), the movable block (42) being provided with an inclined surface protrusion (421) corresponding to the inclination of the inclined surface end (412), and the inclined surface end (412) and the inclined surface protrusion (421) being in sliding contact with each other; It also includes an adjustment rod (43) having one end threadedly connected to the movable block (42) and the other end extending through the outside of the main body (1). The movable block (42) is provided with a threaded hole that interacts with the adjustment rod (43).

6. The one-piece quick release system according to claim 5, characterized in that: One end of the regulating rod (43) located outside the main body (1) is further provided with a knob handle (44), and the outer side wall of the knob handle (44) is provided with a plurality of anti-slip grooves.

7. The one-piece quick release system according to claim 5, characterized in that: The lifting mechanism (4) further includes a loosening and tightening nut (45) with one end passing through the main body (1) and movably abutting against the outer side wall of the adjusting rod (43).

8. The one-piece quick release system according to claim 5, characterized in that: The lifting mechanism (4) further includes a second spring (46) having one end connected to the movable block (42) and the other end connected to the main body (1). There are two second springs (46), which are symmetrically arranged on both sides of the adjusting rod (43). When the plurality of movable screw blocks (2) are retracted, the second springs (46) are in a compressed state.

9. The one-piece quick release system according to claim 5, characterized in that: The ejection mechanism (4) further comprises a guide plate (47), the guide plate (47) being located between the main body (1) and the movable block (42), one end of the guide plate (47) being limited on both sides of the junction of the inclined surface end (412) and the inclined surface protrusion (421) so as to enable the ejection block (41) to move only on its axis.

10. The one-piece quick release system according to claim 1, characterized in that: An anti-slip strip (6) is also provided on the surface of the main body (1) on the side where the movable screw block (2) protrudes; and a plurality of hollow areas are also provided on the main body (1).

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