Self-locking type quick-release plate seat

Abstract

The invention provides a self-locking type quick-release plate seat which comprises a fixed seat, a movable plate and a bottom plate, a left barrier strip protruding upwards is arranged on the left side of the fixed seat, a right barrier strip protruding upwards is arranged on the right side of the fixed seat, a plane is arranged between the left barrier strip and the right barrier strip, an upward cylindrical pin is arranged on the left portion of the movable plate, and an upward right protruding block is arranged on the right side of the movable plate; a main body of the movable plate is located in a groove in the lower end face of the fixed seat and is sealed through a bottom plate, the left part of the fixed seat is provided with a kidney-shaped hole for the cylindrical pin to extend upwards, and the right side of the fixed seat is provided with a rectangular through hole for the right bump to extend upwards; symmetrical inclined surfaces are arranged on the inner side surfaces of the left barrier strip and the right convex block; the two inclined surfaces are matched to form a dovetail groove structure; a reset spring is arranged between the right side end of the movable plate and the side wall of the groove of the fixed seat, the movable plate can move leftwards by a certain distance relative to the fixed seat under the elastic action of the reset spring, and a locking mechanism is arranged at the right side end of the fixed seat. According to the clamping device, clamping and transverse limiting of the quick release plate are synchronously carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of photographic equipment, and in particular to a self-locking quick-release plate seat. Background Art

[0002] Self-locking quick-release plate mounts are widely used for quick mounting on photographic equipment such as tripods and pan / tilt heads. They primarily utilize a mechanical structure to quickly secure and release the device while ensuring stability. Existing self-locking quick-release plate mounts are complex in structure and inconvenient to operate. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a self-locking quick-release plate seat capable of quickly installing and disassembling a quick-release plate.

[0004] The locking mechanism is configured to lock the locking cam of the locking cam and lock the locking cam of the locking cam, so that the locking cam can be locked.

[0005] In the above technical solution, since a cylindrical pin and a right protrusion are provided on the movable plate, the right protrusion cooperates with the two inclined surfaces on the left baffle of the fixed seat to form a dovetail groove for clamping the quick-release plate, and the cylindrical pin is used to limit the quick-release plate laterally to prevent the quick-release plate from falling out of the dovetail groove. In this way, the quick-release plate is clamped and laterally limited simultaneously, and when the clamping and limiting need to be released, they are also carried out simultaneously, which greatly simplifies the operation steps and has a simple and compact structure.

[0006] As a further technical solution, a blind hole is also provided on the upper surface of the movable plate, and a movable pin is installed in the blind hole. The movable pin can move up and down in the blind hole under the influence of magnetic force, elastic force or other external forces; the movable pin has a round head, and the fixed seat is provided with a small round hole for the round head of the movable pin to extend upward, and the small round hole is a conical hole; when the round head of the movable pin passes through the small round hole of the fixed seat and extends upward, the movable plate cannot move left and right relative to the fixed seat; when the round head of the movable pin is pressed by external force, the entire movable pin will overcome the magnetic force or elastic force and move downward, so that the spherical surface of the round head of the movable pin contacts the conical surface of the small round hole. At this time, the movable plate can drive the movable pin to move to the left under the elastic force of the reset spring, and the conical surface of the small round hole will produce a relative downward pressure on the spherical surface of the round head of the movable pin, so that the movable pin moves further downward until it is completely offset from the small round hole. In the above technical solution, the movement of the movable plate can be restricted by the cooperation of the small circular hole and the movable pin. However, when the restriction needs to be lifted, it is very simple. Just press the quick-release plate directly onto the plane of the fixed seat. The lower surface of the quick-release plate will first contact the round head of the movable pin, pushing the entire movable pin to overcome the magnetic force or elastic force and move downward, so that the spherical surface of the round head of the movable pin contacts the conical surface of the small circular hole. At this time, the movable plate can drive the movable pin to move to the left under the elastic force of the reset spring. The advantage of adopting this structure is that the opening of the dovetail groove formed by the right protrusion and the left baffle can be slightly larger than the width of the quick-release plate when the quick-release plate is not installed. Subsequently, you only need to place the quick-release plate flat on the plane of the fixed seat. The right protrusion will automatically move to the left under the action of the reset spring to clamp the quick-release plate, and then lock it with the locking mechanism, realizing full one-handed operation.

[0007] In one embodiment, a magnetic ring is provided at the small circular hole, and the magnetic attraction of the magnetic ring can attract the movable pin to move upward and allow the round head thereof to pass through the small circular hole upward.

[0008] In one embodiment, a spring sheet is provided below the movable pin, and the elastic force of the spring sheet can force the upper portion of the movable pin to protrude from the upper surface of the movable plate.

[0009] In one embodiment, a compression spring is provided below the movable pin, and the elastic force of the compression spring can force the upper portion of the movable pin to protrude from the upper surface of the movable plate.

[0010] In one embodiment, the movable pin includes a lower cylindrical portion and an upper round head portion, one end of the compression spring abuts against the bottom surface of the blind hole, and the other end of the compression spring is inserted into the cylindrical portion of the movable pin.

[0011] In one embodiment, a limiting column protruding upward is provided at a right position of the upper end surface of the fixing seat.

[0012] In one embodiment, the locking mechanism is a locking screw.

[0013] In one embodiment, the locking mechanism is a locking cam.

[0014] In one embodiment, a socket is provided on the side of the fixing seat for placing a wrench, and a pair of force-enhancing ratchets are provided at one end of the fixing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the quick-release plate base in Example 1 of the present invention in a released state; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the quick-release plate base in Example 1 of the present invention in a locked state; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure; Figure 5 Schematic diagram of the quick-release plate base in a released state in Example 2 of the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure; Figure 7 This is a schematic diagram of the quick-release plate base in Example 2 of the present invention in a locked state; Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure; Figure 9 Schematic diagram of the upper surface structure of the fixing base in Example 1 of the present invention; Figure 10 Schematic diagram of the lower surface structure of the fixing base in Example 1 of the present invention; Figure 11 This is a schematic diagram of the right side structure of the fixing base in Example 1 of the present invention; Figure 12 for Figure 9 1-1' line cross-sectional structural diagram; Figure 13 for Figure 9 2-2' line cross-sectional structural diagram; Figure 14 for Figure 9 Schematic diagram of the cross-sectional structure along line 3-3'; Figure 15 Schematic diagram of the upper surface structure of the movable seat in Examples 1 and 2 of the present invention; Figure 16 for Figure 15 Schematic diagram of the cross-sectional structure along line I-I'; Figure 17 for Figure 15 K-K' line cross-sectional structural diagram; Figure 18 Schematic diagram of the bottom plate structure in Examples 1 and 2 of the present invention; Figure 19 Schematic diagram of the upper surface structure of the fixing base in Example 2 of the present invention; Figure 20 Schematic diagram of the lower surface structure of the fixing base in Example 2 of the present invention; Figure 21 This is a schematic diagram of the right side structure of the fixing base in Example 2 of the present invention; Figure 22 for Figure 19 1-1' line cross-sectional structural diagram; Figure 23 for Figure 19 2-2' line cross-sectional structural diagram; Figure 24 for Figure 19 Schematic diagram of the cross-sectional structure along line 3-3'; The accompanying drawings are: 10. Fixed seat; 11. Left stop bar; 12. Right stop bar; 13. External screw hole; 14. Limit column; 20. Movable plate; 21. Cylindrical pin; 22. Right protrusion; 23. Movable pin; 24. Compression spring; 30. Bottom plate; 40. Return spring; 50. Locking mechanism; 60. Wrench; 70. Force ratchet. DETAILED DESCRIPTION

[0016] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0017] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0019] Example 1 like Figures 1 to 4, 9 to 18, a self-locking quick-release plate seat, including a fixed seat 10, a movable plate 20 and a bottom plate 30, the left side of the fixed seat 10 is provided with an upwardly protruding left baffle 11, the right side is provided with an upwardly protruding right baffle 12, the left baffle 11 and the right baffle 12 are flat, the middle part of the fixed seat 10 is provided with an external screw hole 13, the upper end surface of the fixed seat 10 is provided with an upwardly protruding limit column 14 at the right position; the left part of the movable plate 20 is provided with an upward cylindrical pin 21, and the right side is provided with an upward right protrusion 22; the main body of the movable plate 20 is located in the groove of the lower end surface of the fixed seat 10 and is covered by the bottom plate 30, the left part of the fixed seat 10 is provided with a waist-shaped A hole is provided for the cylindrical pin 21 to extend upward, and a rectangular through hole is provided on the right side for the right protrusion 22 to extend upward; the inner sides of the left baffle 11 and the right protrusion 22 are provided with symmetrical inclined surfaces, and the left and right inclined surfaces cooperate to form a dovetail groove structure; a return spring 40 is provided between the right end of the movable plate 20 and the side wall of the groove of the fixed seat 10. Under the elastic force of the return spring 40, the movable plate 20 will move a certain distance to the left relative to the fixed seat 10, and a locking mechanism 50 is provided at the right end of the fixed seat 10. The locking mechanism 50 in this embodiment is a locking screw; a socket is provided on the side of the fixed seat 10 for placing a wrench 60, and a pair of force ratchets 70 are provided at one end of the fixed seat 10.

[0020] In the above technical solution, since the movable plate 20 is provided with a cylindrical pin 21 and a right protrusion 22, the right protrusion 22 cooperates with the two inclined surfaces on the left baffle 11 of the fixed seat 10 to form a dovetail groove for clamping the quick-release plate, and the cylindrical pin 21 is used to laterally limit the quick-release plate to prevent the quick-release plate from falling out of the dovetail groove. In this way, the quick-release plate is clamped and laterally limited simultaneously, and when the clamping and limiting need to be released, they are also carried out simultaneously, which greatly simplifies the operating steps and has a simple and compact structure.

[0021] As a further technical solution, a blind hole is further provided on the upper surface of the movable plate 20, in which a movable pin 23 is installed. The movable pin 23 includes a cylindrical portion at the bottom and a round head portion at the top. A compression spring 24 is provided below the movable pin 23, one end of the compression spring 24 rests on the bottom surface of the blind hole, and the other end of the compression spring 24 is inserted into the cylindrical portion of the movable pin 23. The elastic force of the compression spring 24 can force the upper part of the movable pin 23 to protrude from the upper surface of the movable plate 20; the fixing seat 10 is provided with a small circular hole for the round head of the movable pin 23 to extend upward, and the small circular hole is a tapered hole; when the movable pin 2 When the round head extends upward through the small circular hole of the fixing seat 10, the movable plate 20 cannot move left or right relative to the fixing seat 10; when the round head of the movable pin 23 is pressed by an external force, the entire movable pin 23 will overcome the elastic force of the compression spring 24 and move downward, so that the spherical surface of the round head of the movable pin 23 contacts the conical surface of the small circular hole. At this time, the movable plate 20 can drive the movable pin 23 to move left under the elastic force of the return spring 40, and the conical surface of the small circular hole will generate relative downward pressure on the spherical surface of the round head of the movable pin 23, so that the movable pin 23 moves further downward until it is completely offset from the small circular hole.

[0022] In the above technical solution, the movement of the movable plate 20 is restricted by the cooperation between the small circular hole and the movable pin 23. However, when the restriction needs to be removed, it is very simple. The quick-release plate can be directly pressed onto the flat surface of the fixed base 10. The lower surface of the quick-release plate will first contact the round head of the movable pin 23, pushing the entire movable pin 23 downward to overcome the elastic force of the compression spring 24, so that the spherical surface of the round head of the movable pin 23 contacts the conical surface of the small circular hole. At this time, the movable plate 20 can drive the movable pin 23 to move leftward under the elastic force of the return spring 40. The advantage of adopting this structure is that the opening of the dovetail groove formed by the right protrusion 22 and the left stop bar 11 when the quick-release plate is not installed is slightly larger than the width of the quick-release plate. Subsequently, the quick-release plate can be placed flat on the flat surface of the fixed base 10. The right protrusion 22 will automatically move leftward under the action of the return spring 40 to clamp the quick-release plate. It can then be locked by the locking mechanism 50, realizing full one-handed operation.

[0023] Example 2 like Figures 5 to 8 , 15 to 24, the basic structure and principle of this embodiment are the same as those of embodiment 1, except that the locking mechanism 50 is replaced by a locking cam from a locking screw, and the structure on the right side of the fixing seat 10 is changed accordingly for installing the locking cam.

[0024] Example 3 The basic structure and principle of this embodiment are the same as those of embodiment 1, except that the cylindrical part of the movable pin is changed into a cylinder, and the compression spring below the movable pin is replaced with a spring sheet, the elastic force of which can force the upper part of the movable pin to protrude from the upper surface of the movable plate.

[0025] Example 4 The basic structure and principle of this embodiment are the same as those of embodiment 1. The difference is that the compression spring under the movable pin is eliminated, and a circle of magnetic ring is provided at the small circular hole. The magnetic attraction of the magnetic ring attracts the movable pin to move upward and causes its round head to pass through the small circular hole upward.

[0026] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

[0027] In order to make it easier for those skilled in the art to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and for the sake of clarity, some other elements have been omitted in this application document. Those skilled in the art should realize that these omitted elements may also constitute the content of the present invention.

Claims

1. A self-locking quick-release plate base, characterized by: The invention comprises a fixed seat (10), a movable plate (20) and a bottom plate (30), wherein the left side of the fixed seat (10) is provided with a left stop bar (11) protruding upwards, and the right side is provided with a right stop bar (12) protruding upwards, and a plane is formed between the left stop bar (11) and the right stop bar (12), and the left part of the movable plate (20) is provided with an upward cylindrical pin (21), and the right side is provided with an upward right protrusion (22); the main body of the movable plate (20) is located in the groove of the lower end surface of the fixed seat (10) and is covered by the bottom plate (30), and the left part of the fixed seat (10) is provided with a waist A shaped hole is provided for the cylindrical pin (21) to extend upward, and a rectangular through hole is provided on the right side for the right protrusion (22) to extend upward; the inner side surfaces of the left baffle (11) and the right protrusion (22) are both provided with symmetrical inclined surfaces, and the left and right inclined surfaces cooperate to form a dovetail groove structure; a reset spring (40) is provided between the right end of the movable plate (20) and the side wall of the groove of the fixed seat (10), and under the elastic force of the reset spring (40), the movable plate (20) will move a certain distance to the left relative to the fixed seat (10), and a locking mechanism (50) is provided at the right end of the fixed seat (10).

2. The self-locking quick-release plate base according to claim 1, characterized in that: The upper surface of the movable plate (20) is further provided with a blind hole, in which a movable pin (23) is installed. The movable pin (23) can move up and down in the blind hole under the influence of magnetic force, elastic force or other external force; the movable pin (23) has a round head, and the fixed seat (10) is provided with a small round hole for the round head of the movable pin (23) to extend upward, and the small round hole is a tapered hole; when the round head of the movable pin (23) passes through the small round hole of the fixed seat (10) and extends upward, the movable plate (20) cannot be relatively fixed. The fixed seat (10) moves left and right; when the round head of the movable pin (23) is pressed by an external force, the entire movable pin (23) will overcome the magnetic force or elastic force and move downward, so that the spherical surface of the round head of the movable pin (23) contacts the conical surface of the small circular hole. At this time, the movable plate (20) can drive the movable pin (23) to move left under the elastic force of the return spring (40), and the conical surface of the small circular hole will generate relative downward pressure on the spherical surface of the round head of the movable pin (23), so that the movable pin (23) moves further downward until it is completely offset from the small circular hole.

3. The self-locking quick-release plate base according to claim 2, characterized in that: A magnetic ring is provided at the small circular hole, and the magnetic attraction of the magnetic ring can attract the movable pin (23) to move upward and make its round head pass through the small circular hole upward.

4. The self-locking quick-release plate base according to claim 2, characterized in that: A spring sheet is provided below the movable pin (23), and the elastic force of the spring sheet can force the upper portion of the movable pin (23) to protrude from the upper surface of the movable plate (20).

5. The self-locking quick-release plate base according to claim 2, characterized in that: A compression spring (24) is provided below the movable pin (23), and the elastic force of the compression spring (24) can force the upper part of the movable pin (23) to protrude from the upper surface of the movable plate (20).

6. The self-locking quick-release plate base according to claim 5, characterized in that: The movable pin (23) comprises a lower cylindrical portion and an upper round head portion, one end of the compression spring (24) abuts against the bottom surface of the blind hole, and the other end of the compression spring (24) is inserted into the cylindrical portion of the movable pin (23).

7. The self-locking quick-release plate base according to claim 1 or 2, characterized in that: A limiting column (14) protruding upward is provided at a right position of the upper end surface of the fixing seat (10).

8. The self-locking quick-release plate base according to claim 1 or 2, characterized in that: The locking mechanism (50) is a locking screw.

9. The angle-adjustable tripod according to claim 1 or 2, characterized in that: The locking mechanism (50) is a locking cam.

10. The angle-adjustable tripod according to claim 1 or 2, characterized in that: A socket is provided on the side of the fixing seat (10) for placing a wrench (60); and a pair of force-enhancing ratchets (70) are provided at one end of the fixing seat (10).

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