Quick release structure and camera mounting seat

Abstract

The utility model relates to the technical field of photography accessories, in particular to a quick release structure and a camera mounting seat, the quick release structure comprises a spiral sliding block, the spiral sliding block is arranged in a mounting groove in a sliding manner and is provided with a U-shaped surface matched with a barb, the U-shaped surface covers the outer surface of the barb in a semi-surrounding manner, and the U-shaped surface is in spiral fit with the barb. When the spiral sliding block moves in the length direction of the barb, the free end of the barb can retract into the locking opening or stretch out to the front face of the base. According to the utility model, a semi-surrounding mode is adopted, so that the structural process is greatly simplified, structural processing and assembling are facilitated, batch production of products is facilitated, and popularization and application are facilitated; and the structure is simple and firm, the operation is simple and rapid, the safety fool-proof design is realized, the double insurance is realized, and the quick release plate with a dovetail is adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic accessories, in particular to a quick-release structure and a camera mounting seat. Background Art

[0002] In order to facilitate the connection between the camera and products such as shoulder straps, tripods or pan heads, camera mounts are often used to assist in improving the efficiency of camera assembly and disassembly. At present, camera mounts on the market usually consist of a quick-release structure and a quick-release plate, wherein the quick-release structure is fixed to the shoulder strap, tripod or pan head, and the quick-release plate is fixed to the camera, thereby realizing indirect installation of the camera on the shoulder strap, tripod or pan head.

[0003] The current camera mounting base, such as the Chinese patent with authorization announcement number CN 221121647 U, discloses a shoulder strap quick-hanging base, including a base and a back cover arranged on the back of the base, and the front left and right sides of the base are symmetrically provided with pressure rails for limiting the camera quick-release plate, and also include a mounting groove, which is opened on the back of the base, and the mounting groove is in a horizontal T shape, and the inner bottom surface of the mounting groove is penetrated with a locking opening. The utility model can indirectly drive the screw shaft and the barb to rotate through the button mechanism, so as to use the barb to buckle the camera quick-release plate to fix its position, and due to the characteristics of the spiral groove itself, the screw shaft has a self-locking function, that is, the barb cannot be directly driven to rotate by external force, thereby ensuring the assembly stability of the camera quick-release plate.

[0004] In the above-mentioned related technologies, the screw shaft and the nut transmission wedge block are used to drive the barb to rotate, thereby buckling and fixing the camera quick release plate. However, the nut transmission wedge block is threadedly connected to the screw shaft in a fully enclosed manner, and the structural process is relatively complicated, which is not conducive to structural processing and assembly. To this end, we propose a quick release structure and a camera mounting seat to effectively solve the above-mentioned drawbacks. Utility Model Content

[0005] The purpose of the utility model is to provide a quick-release structure and a camera mounting seat, which are used to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical scheme: a quick-release structure, including a base, a quick-release plate positioning mechanism is fixedly connected to the front of the base, a rear cover is detachably connected to the back of the base, a locking opening is penetrated through the upper proximal end of the base, a barb is movably provided at the locking opening, and a mounting groove connected to the locking opening is opened on the back of the base, and also includes:

[0007] A spiral slider, wherein the spiral slider is slidably disposed in the mounting groove and has a U-shaped surface that matches the barb, the U-shaped surface is semi-enclosed and covers the outer surface of the barb, and the U-shaped surface and the barb are spirally matched, and when the spiral slider is displaced along the length direction of the barb, the free end of the barb can be retracted into the locking opening or extended to the front of the base;

[0008] A button mechanism, which is movably disposed on the side wall of the base and is used to push the spiral slider to move along the length direction of the barb;

[0009] The trigger mechanism is movably arranged in the installation groove and is used to fix the position of the spiral slider when the free end of the barb is retracted into the locking mouth.

[0010] Optionally, a non-closed-loop spiral concave surface is provided on the U-shaped surface, and a non-closed-loop spiral convex surface matching the non-closed-loop spiral concave surface is fixed on the surface of the barb.

[0011] Optionally, a spiral protrusion is protrudingly formed on the U-shaped surface of the spiral slider, and a spiral groove matching the spiral protrusion is formed on the surface of the barb.

[0012] Optionally, a placement step is fixed to a side of the spiral slider away from the button mechanism, and a first horizontal reset elastic member that is always in a compressed state is connected between the placement step and the mounting groove.

[0013] Optionally, the button mechanism includes a button and a limit slider sequentially arranged in a horizontal direction, and a jack connected to the mounting groove and adapted to the button is penetrated through the side of the base; a side of the limit slider away from the button contacts the spiral slider, and a second horizontal reset elastic member that is always in a compressed state is connected between the side of the limit slider away from the button and the mounting groove;

[0014] A strip channel arranged in a vertical direction runs through the limit slider, a limit boss slidably connected in the strip channel is fixed on the side of the button close to the limit slider, a bumper is arranged on the limit boss, and a first reset concave surface and a second reset concave surface adapted to the bumper are arranged in sequence from top to bottom on the surface of the limit slider;

[0015] When the contact ball contacts the first reset concave surface, the button and the socket are in an aligned state; when the contact ball contacts the second reset concave surface, the button and the socket are in a misaligned state.

[0016] Optionally, a limiting protrusion is integrally formed on the surface of the limiting slider, and a limiting shaft in contact with the limiting protrusion is provided in the installation groove along the vertical direction, and the limiting shaft and the limiting protrusion cooperate to prevent the limiting slider from sliding out laterally through the socket.

[0017] Optionally, an L-shaped safety lock retaining plate is integrally formed on the side of the limit slider away from the button, and a safety lock limit groove that is mutually engaged with the safety lock retaining plate is provided on the spiral slider.

[0018] Optionally, the trigger mechanism includes a trigger block that slides in the mounting groove along the vertical direction, and a vertical reset elastic member that is always in a compressed state is connected between the bottom of the trigger block and the mounting groove; a through hole that is connected to the mounting groove is penetrated through the lower proximal end of the base, and a trigger boss that moves through the through hole is fixed on the surface of the trigger block;

[0019] A locking groove and a first inclined surface are sequentially arranged at the top of the trigger block in the horizontal direction, a locking block is integrally formed at the bottom of the spiral slider, and a second inclined surface adapted to the first inclined surface is arranged on the locking block;

[0020] When the free end of the barb is completely retracted into the locking opening, the lower end of the locking block is inserted into the locking groove; when the free end of the barb is completely extended to the front side of the base, the first inclined surface and the second inclined surface are tightly fitted.

[0021] The utility model also provides a camera mounting seat, comprising the above-mentioned quick-release structure and a camera quick-release plate. The camera quick-release plate and the quick-release plate positioning mechanism of the quick-release structure cooperate to perform quick assembly and disassembly.

[0022] Compared with the prior art, the utility model provides a quick-release structure and a camera mounting seat, which have the following beneficial effects:

[0023] After the utility model adopts the above structure, through the spiral cooperation of the spiral slider and the barb, when the spiral slider moves along the length direction of the barb, the free end of the barb can be retracted into the locking mouth, or extended to the front of the base. Since the spiral slider adopts the U-shaped surface semi-enclosed method to cover the outer surface of the barb, it is convenient to assemble the structure; and the spiral cooperation structure is arranged on the U-shaped surface and the outer surface of the barb, which is convenient for the processing of the structure. The utility model adopts the semi-enclosed method, which greatly simplifies the structural process, is conducive to structural processing and assembly, and is convenient for mass production of products, and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of the front side of the quick-release structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the back side of the quick-disassembly structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model quick-release structure after removing the back cover;

[0027] Figure 4 This is a schematic diagram of the structure of the barb and the spiral slider of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the spiral slider of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the button mechanism of the utility model.

[0030] Figure 7 This is a schematic diagram of the structure of the button of the utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the limit slider of the utility model;

[0032] Fig. 9 It is a schematic diagram of the structure of the limiting protrusion and the limiting shaft of the utility model;

[0033] Fig.10 It is a schematic diagram of the structure of the limit slider and the spiral slider of the utility model;

[0034] Fig.11 It is a structural schematic diagram of the trigger mechanism of the utility model;

[0035] Fig.12 It is a structural schematic diagram of the back side of the base of the utility model.

[0036] Fig.13 It is a structural schematic diagram of the camera mounting seat of the utility model.

[0037] In the figure: 1, base; 2, quick-release plate positioning mechanism; 3, back cover; 4, locking mouth; 5, barb; 501, non-closed-loop spiral convex surface; 6, mounting groove; 7, spiral slider; 701, non-closed-loop spiral concave surface; 8, button mechanism; 801, button; 802, limit slider; 803, jack; 804, second horizontal reset elastic member; 805, strip channel; 806, limit boss; 807, bead; 808, first reset concave surface; 809 , second reset concave surface; 8010, limiting protrusion; 8011, limiting axis; 8012, safety lock positioning plate; 8013, safety lock limiting groove; 9, trigger mechanism; 901, trigger block; 902, vertical reset elastic member; 903, perforation; 904, trigger boss; 905, locking groove; 906, first inclined surface; 907, second inclined surface; 908, locking block; 10, placement step; 11, first horizontal reset elastic member; 12, camera quick release plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example 1: Please refer to Figures 1 to 12 As shown, a quick-release structure includes a base 1, the front of the base 1 is a mounting plane; a quick-release plate positioning mechanism 2 is fixedly connected to the front of the base 1, and the quick-release plate positioning mechanism 2 is used to position the quick-release plate. In this embodiment, Figure 1 As shown, the quick-release plate positioning mechanism 2 includes dovetail channels fixed on both sides of the front of the base 1. The dovetail channels are large in size and can adapt to more than 80% of the square dovetail quick-release plates currently on the market, which meet the Arca standard; a dovetail baffle is fixedly connected to the bottom of the front of the base 1. When in use, the quick-release plate is inserted into the dovetail channel, and the bottom of the quick-release plate is supported by the dovetail baffle, and finally the quick-release plate is buckled by the barb 5, so that the camera can be connected to products such as shoulder straps, tripods or pan heads.

[0040] A rear cover 3 is detachably connected to the back of the base 1. Figure 2 As shown, the rear cover 3 is detachably connected to the base 1 by screws, which has a simple structure and is easy to operate. A locking hole 4 is penetrated at the upper proximal end of the base 1, and a barb 5 is movably provided at the locking hole 4. A mounting groove 6 is provided on the back of the base 1 and is connected to the locking hole 4 to provide mounting space for other structures in the device. In this embodiment, as shown in FIG. Figure 3 As shown, the inner end of the barb 5 is fixedly connected with a pin shaft, and an axis groove adapted to the pin shaft is provided in the mounting groove 6. The pin shaft is directly placed in the axis groove. Through the cooperation of the pin shaft and the axis groove, the inner end of the barb 5 can rotate around the axis of the pin shaft in the mounting groove 6. When the free end of the barb 5 is retracted into the locking mouth 4, the quick-release plate can be smoothly inserted into the dovetail channel, or pulled out from the dovetail channel. When the free end of the barb 5 extends to the front of the base 1, the quick-release plate can be buckled. It is worth mentioning that the barb 5 and the pin shaft can be fixedly connected in a detachable manner, or can be made in one piece.

[0041] This embodiment also includes a spiral slider 7, such as Figure 4As shown, the spiral slider 7 is slidably arranged in the installation groove 6 and has a U-shaped surface that matches the barb 5. The U-shaped surface is semi-enclosed and covers the outer surface of the barb 5, and the U-shaped surface and the barb 5 are spirally matched. When the spiral slider 7 is displaced along the length direction of the barb 5, the free end of the barb 5 can be retracted into the locking opening 4 or extended to the front of the base 1. Since the spiral slider 7 is semi-enclosed by the U-shaped surface and covers the outer surface of the barb 5, it is convenient to assemble the structure; and the spiral matching structure is arranged on the U-shaped surface and the outer surface of the barb 5, which is convenient for the processing of the structure.

[0042] Preferably, a non-closed-loop spiral concave surface 701 is provided on the U-shaped surface, and a non-closed-loop spiral convex surface 501 matching the non-closed-loop spiral concave surface 701 is fixed on the surface of the barb 5. The matching of the non-closed-loop spiral concave surface 701 and the non-closed-loop spiral convex surface 501 produces a functional effect similar to that of a screw and a nut, and when the spiral slider 7 moves along the length direction of the barb 5, the barb 5 can be driven to rotate around the axis through the curved surface.

[0043] In another embodiment of the present application, a spiral protrusion is protrudingly formed on the U-shaped surface of the spiral slider 7, and a spiral groove (not shown in the figure) that cooperates with the spiral protrusion is formed on the surface of the hook 5. Through the cooperation between the spiral protrusion and the spiral groove, when the spiral slider 7 is displaced along the length direction of the hook 5, it can also drive the hook 5 to rotate.

[0044] Furthermore, the non-closed-loop spiral convex surface 501 and the non-closed-loop spiral concave surface 701 are both large-lead spirals. The surface adopts a large-lead spiral design, so that when a force is applied to the spiral slider 7 to move along the length direction of the barb 5, it can drive the barb 5 to rotate. On the contrary, when a rotational torque is applied to the barb 5, the spiral slider 7 cannot be pushed to move along the length direction of the barb 5, thereby achieving the effect of unidirectional movement and reverse self-locking; wherein, the thread lead refers to the axial distance moved by any point on the thread along the same spiral line for one rotation, and the large lead is like a large-angle slope, and its slope angle is β, which is also the helix angle of the barb 5, and the large lead produces a large helix angle.

[0045] like Figure 5As shown, a placement step 10 is fixed on the side of the spiral slider 7 away from the button mechanism 8, and a first horizontal reset elastic member 11 which is always in a compressed state is connected between the placement step 10 and the mounting groove 6. Among them, the first horizontal reset elastic member 11 can be a spring, an O-ring or a spring, etc., which is mainly used to provide a horizontal thrust for the spiral slider 7 so that the spiral slider 7 can be reset horizontally. In this embodiment, the first horizontal reset elastic member 11 is a spring, and the spring is placed between the placement step 10 and the mounting groove 6, and the elastic force of the spring is used to apply a horizontal reset thrust to the spiral slider 7. In addition, it should be noted that the placement step 10 is mainly used to prevent the spring from moving, and a cylinder or other structure can also be used to prevent the spring from moving.

[0046] This embodiment further includes a button mechanism 8, which is movably disposed on the side wall of the base 1 and is used to push the spiral slider 7 to move along the length direction of the barb 5. Figure 3 As shown, the button mechanism 8 includes a button 801 and a limit slider 802 arranged in sequence along the horizontal direction. A socket 803 that is connected to the mounting groove 6 and adapted to the button 801 is penetrated on the side of the base 1, and the button 801 can be pushed laterally along the socket 803; the side of the limit slider 802 away from the button 801 is in contact with the spiral slider 7, and a second horizontal reset elastic member 804 that is always in a compressed state is connected between the side of the limit slider 802 away from the button 801 and the mounting groove 6, providing a thrust for the limit slider 802 to move and reset in the direction of the socket 803. Among them, the second horizontal reset elastic member 804 can be a spring, an O-ring or a shrapnel, etc., mainly used to provide a horizontal thrust for the limit slider 802, so that the limit slider 802 can be reset horizontally. In this embodiment, the second horizontal reset elastic member 804 is a spring, and a placement shaft adapted to the spring is fixed on the side of the limit slider 802, and the spring is prevented from moving by the placement shaft.

[0047] Specifically, if Figures 6 to 8As shown, a strip channel 805 arranged in the vertical direction is passed through the limit slider 802, and a limit boss 806 is fixed on the side of the button 801 close to the limit slider 802, which is slidably connected to the strip channel 805. The limit boss 806 can slide up and down along the strip channel 805, thereby limiting the movement range of the button 801 and making it difficult for the button 801 to be separated from the limit slider 802. A bumping ball 807 is arranged on the limit boss 806, and the head of the bumping ball 807 can be adaptively contracted. This is a prior art and will not be repeated here. A first reset concave surface 808 and a second reset concave surface 809 adapted to the bumping ball 807 are arranged in sequence from top to bottom on the surface of the limit slider 802; when the bumping ball 807 contacts the first reset concave surface 808, the button 801 and the jack 803 are in an aligned state, and the button 801 can be pressed at this time, thereby driving the spiral slider 7 to move along the length direction of the barb 5. When the bead 807 contacts the second reset concave surface 809, the button 801 and the insertion hole 803 are in a misaligned state. At this time, the button 801 cannot be pressed, thus achieving self-locking.

[0048] Specifically, the button 801 is toggled in the vertical direction, so that the limiting boss 806 moves along the strip channel 805, and the ball 807 moves from the first reset concave surface 808 to the second reset concave surface 809. The ball 807 is reset first, then compressed, and then reset, so that the button 801 has a hand feeling experience of being pushed into place. At this time, the button 801 and the socket 803 are in a misaligned state, and the button 801 cannot be pressed along the socket 803. Because of the cooperation between the limiting boss 8010 and the limiting shaft 8011, the limiting slider 802 cannot move toward the socket 803, and the limiting boss 806 is located in the strip channel 805, thereby realizing the omnidirectional locking of the button 801.

[0049] Preferably, Fig. 9 As shown, a limiting protrusion 8010 is integrally formed on the surface of the limiting slider 802, and a limiting shaft 8011 in contact with the limiting protrusion 8010 is provided in the mounting groove 6 along the vertical direction. The limiting shaft 8011 and the limiting protrusion 8010 cooperate to prevent the limiting slider 802 from sliding out laterally along the insertion hole 803.

[0050] Preferably, Fig.10As shown, the side of the limit slider 802 away from the button 801 is integrally formed with an L-shaped safety lock card plate 8012, and a safety lock limit groove 8013 that is mutually engaged with the safety lock card plate 8012 is provided on the spiral slider 7. The safety lock card plate 8012 and the safety lock limit groove 8013 cooperate with each other, so that the limit slider 801 and the spiral slider 7 can move relative to each other by a certain distance, so that when the button 801 is pushed, the spiral slider 7 can be smoothly driven to move along the length direction of the barb 5. In addition, when the barb 5 fails to self-lock and rotates to drive the spiral slider 7 to slide inward, the safety lock card plate 8012 can contact the limit surface of the safety lock limit groove 8013, so that the spiral slider 7 can only slide inward to a certain distance, so that the barb 5 cannot be completely received in the locking port 4, effectively preventing the quick-release plate from sliding out.

[0051] This embodiment further includes a trigger mechanism 9, which is movably disposed in the mounting groove 6 and is used to fix the position of the spiral slider 7 when the free end of the barb 5 is retracted into the locking opening 4. Figure 3 , Fig.11 and Fig.12 As shown, the trigger mechanism 9 includes a trigger block 901 that slides in the mounting groove 6 in the vertical direction, and a vertical reset elastic member 902 that is always in a compressed state is connected between the bottom of the trigger block 901 and the mounting groove 6; wherein the vertical reset elastic member 902 can be a spring, an O-ring or a spring, etc., and is mainly used to provide a vertical upward thrust for the trigger block 901, so that the trigger block 901 can be reset vertically. In this embodiment, the vertical reset elastic member 902 is a spring, and a placement groove adapted to the spring is provided at the bottom of the trigger block 901, and the spring is prevented from moving through the placement groove.

[0052] A through hole 903 is formed at the lower proximal end of the base 1 and is connected to the mounting groove 6. A trigger boss 904 is fixed on the surface of the trigger block 901 and is movable through the through hole 903. In this embodiment, the trigger boss 904 is located above the dovetail baffle. When the camera quick-release plate 12 is inserted, the trigger boss 904 can be driven to move downward, so that the locking block 908 is separated from the locking groove 905. A locking groove 905 and a first inclined surface 906 are sequentially provided at the top of the trigger block 901 in the horizontal direction. A locking block 908 is integrally formed at the bottom of the spiral slider 7. A second inclined surface 907 adapted to the first inclined surface 906 is provided on the locking block 908. When the free end of the barb 5 is completely retracted into the locking opening 4, the lower end of the locking block 908 is inserted into the locking groove 905, thereby locking the spiral slider 7; when the free end of the barb 5 is completely extended to the front of the base 1, the first inclined surface 906 and the second inclined surface 907 are closely fitted.

[0053] This embodiment has a simple and reliable structure, is easy and quick to operate, has a safe and foolproof design, double insurance, and is compatible with a quick-release plate with a dovetail.

[0054] Example 2: Please refer to Fig.13 This embodiment also provides a camera mounting seat, including the above-mentioned quick release structure, and also including a camera quick release plate 12, wherein the camera quick release plate 12 cooperates with the quick release plate positioning mechanism 2 of the quick release structure for quick release and assembly. Specifically, the main body of the camera quick release plate 12 is plate-shaped, and a bolt is connected through the main body, and the bolt is used to be screwed into the camera, thereby fixing the camera quick release plate 12 and the camera. When in use, the camera quick release plate 12 is inserted into the dovetail channel and then buckled by the barb 5.

[0055] Working principle:

[0056] Initial state: the hook portion of the barb 5 rotates to the installation plane and is located at the maximum position of the hook; the spiral slider 7 and the trigger block 901, under the action of elastic force, make the first inclined surface 906 and the second inclined surface 907 contact; the non-closed-loop spiral convex surface and the non-closed-loop spiral concave surface match; the limit slider 802, under the action of elastic force, makes the limit protrusion 8010 contact the limit shaft 8011; the bead 807 is at the first reset concave surface 808, so that the button 801 is aligned with the socket 803; the trigger boss 904 is in a state away from the dovetail baffle.

[0057] Unlocked state: Press button 801, button 801 pushes limit slider 802 to move horizontally along plug hole 803 into mounting groove 6, compressing second horizontal reset elastic member 804; limit slider 802 pushes spiral slider 7, causing spiral slider 7 to move horizontally, compressing first horizontal reset elastic member 11, and at the same time, the horizontally moving non-closed-loop spiral concave surface drives the non-closed-loop spiral convex surface, causing barb 5 to rotate along the pin axis, and barb 5 gradually retracts into locking opening 4 along locking opening 4; the horizontal movement of spiral slider 7 is transformed into vertical downward movement of trigger block 901 through the cooperation of first inclined surface 906 and second inclined surface 907, until locking block 908 enters locking groove 905, thereby locking the position of spiral slider 7, at which time barb 5 is completely retracted into locking opening 4, and then button 801 is released, and button 801 pops outward and resets under the action of second horizontal reset elastic member 804. In this process, trigger block 901 first moves to the bottom of mounting groove 6, and then resets upward.

[0058] Trigger locking state: after unlocking, the camera quick-release plate 12 is inserted along the dovetail channel from the opening at the top of the quick-release plate positioning mechanism 2 until the bottom of the camera quick-release plate 12 contacts the trigger boss 904, and the trigger boss 904 is pushed downward until it contacts the dovetail baffle; during this process, the trigger block 901 is pushed to the unlocked state, so that the locking block 908 is disengaged from the locking groove 905 and unlocked. At this time, under the action of the first horizontal reset elastic member 11, the spiral slider 7 moves toward the direction of the socket 803 to reset, driving the barb 5 to rotate outward until the free end of the barb 5 contacts the camera quick-release plate 12, locking the camera quick-release plate 12, and at this time the spiral slider 7 is not in contact with the limit slider 802.

[0059] After completing the above operations, the camera quick-release plate 12 can be connected to the quick-release structure. Since the barb 5 cannot push the spiral slider 7 to move horizontally, the barb 5 cannot be directly unlocked under the action of external force.

[0060] Safety lock state: After being in the unlocked state or after triggering the locked state, push the button 801 downward to make the bead 807 reach the second reset concave surface 809. At this time, the button 801 and the socket 803 are in a staggered state, so that the button 801 cannot be pressed into the installation groove 6, thereby preventing the button 801 from being accidentally touched under special circumstances, resulting in the unlocking hook 5.

[0061] Spiral fit failure safety lock: when the hook 5 is applied with pressure to the self-locking destruction limit, the spiral groove self-locking may fail; when the button 801 is in the locked state, the hook 5 self-locking fails and rotates, driving the spiral slider 7 to slide inward and compress the first horizontal reset elastic member 11 until the safety lock positioning plate 8012 contacts the limiting surface of the safety lock limiting groove 8013, restricting the spiral slider 7 from continuing to move, so that the hook 5 cannot be completely retracted into the locking mouth 4. The hook 5 in this state can limit the quick release plate on the market from sliding out to the greatest extent.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0063] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release structure, comprising a base (1), a quick-release plate positioning mechanism (2) fixedly connected to the front of the base (1), a rear cover (3) detachably connected to the back of the base (1), a locking opening (4) passing through the upper proximal end of the base (1), a barb (5) movably provided at the locking opening (4), and a mounting groove (6) communicating with the locking opening (4) provided on the back of the base (1), characterized in that: Also includes: A spiral slider (7), the spiral slider (7) is slidably arranged in the installation groove (6) and has a U-shaped surface that matches the barb (5), the U-shaped surface is semi-enclosed and covers the outer surface of the barb (5), and the U-shaped surface and the barb (5) are spirally matched, when the spiral slider (7) is displaced along the length direction of the barb (5), the free end of the barb (5) can be retracted into the locking opening (4) or extended to the front of the base (1); A button mechanism (8), the button mechanism (8) being movably arranged on the side wall of the base (1) and used for pushing the spiral slider (7) to move along the length direction of the barb (5); A trigger mechanism (9) is movably arranged in the mounting groove (6) and is used to fix the position of the spiral slider (7) when the free end of the barb (5) is retracted into the locking opening (4).

2. A quick-release structure according to claim 1, characterized in that: The U-shaped surface is provided with a non-closed-loop spiral concave curved surface (701), and a non-closed-loop spiral convex curved surface (501) matching with the non-closed-loop spiral concave curved surface (701) is fixed on the surface of the barb (5).

3. A quick-release structure according to claim 1, characterized in that: A spiral protrusion in a spiral shape is protrudingly formed on the U-shaped surface of the spiral slider (7), and a spiral groove matching the spiral protrusion is formed on the surface of the barb (5).

4. The quick-release structure according to claim 1, characterized in that: A placement step (10) is fixed to the side of the spiral slider (7) away from the button mechanism (8), and a first horizontal reset elastic member (11) which is always in a compressed state is connected between the placement step (10) and the mounting groove (6).

5. A quick-release structure according to claim 4, characterized in that: The button mechanism (8) comprises a button (801) and a limit slider (802) arranged in sequence along a horizontal direction; a socket (803) connected to the mounting groove (6) and adapted to the button (801) is penetrated through the side of the base (1); a side of the limit slider (802) away from the button (801) contacts the spiral slider (7); a second horizontal reset elastic member (804) which is always in a compressed state is connected between the side of the limit slider (802) away from the button (801) and the mounting groove (6); A strip channel (805) is provided in a vertical direction through the limit slider (802); a limit boss (806) is fixed on one side of the button (801) close to the limit slider (802) and is slidably connected to the strip channel (805); a bumping ball (807) is provided on the limit boss (806); and a first reset concave surface (808) and a second reset concave surface (809) adapted to the bumping ball (807) are provided in sequence from top to bottom on the surface of the limit slider (802); When the bead (807) contacts the first reset concave surface (808), the button (801) and the insertion hole (803) are in an aligned state; when the bead (807) contacts the second reset concave surface (809), the button (801) and the insertion hole (803) are in a misaligned state.

6. A quick-release structure according to claim 5, characterized in that: A limiting protrusion (8010) is integrally formed on the surface of the limiting slider (802), and a limiting shaft (8011) in contact with the limiting protrusion (8010) is provided in the installation groove (6) along the vertical direction, and the limiting shaft (8011) and the limiting protrusion (8010) cooperate to prevent the limiting slider (802) from sliding out laterally through the insertion hole (803).

7. The quick-release structure according to claim 5, characterized in that: An L-shaped safety lock retaining plate (8012) is integrally formed on one side of the limit slider (802) away from the button (801), and a safety lock limit groove (8013) that is mutually engaged with the safety lock retaining plate (8012) is provided on the spiral slider (7).

8. The quick-release structure according to claim 5, characterized in that: The trigger mechanism (9) comprises a trigger block (901) which slides in the mounting groove (6) along the vertical direction, and a vertical resetting elastic member (902) which is always in a compressed state is connected between the bottom of the trigger block (901) and the mounting groove (6); a through hole (903) which is in communication with the mounting groove (6) is penetrated through the lower proximal end of the base (1), and a trigger boss (904) which movably passes through the through hole (903) is fixed on the surface of the trigger block (901); A locking groove (905) and a first inclined surface (906) are sequentially arranged at the top of the trigger block (901) in the horizontal direction, a locking block (908) is integrally formed at the bottom of the spiral slider (7), and a second inclined surface (907) adapted to the first inclined surface (906) is arranged on the locking block (908); When the free end of the barb (5) is completely retracted into the locking opening (4), the lower end of the locking block (908) is inserted into the locking groove (905); when the free end of the barb (5) is completely extended to the front side of the base (1), the first inclined surface (906) and the second inclined surface (907) are tightly fitted.

9. A camera mounting seat, comprising the quick-release structure according to any one of claims 1 to 8, characterized in that: It also comprises a camera quick-release plate (12), wherein the camera quick-release plate (12) cooperates with a quick-release plate positioning mechanism (2) of the quick-release structure to perform quick release and assembly.

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