Quick-release installation structure

Abstract

The present invention relates to a quick-release installation structure, comprising: a quick-release base, comprising a first bottom and a second base end, the first base end is recessed to form an installation notch, and a dovetail groove is provided on the circumferential inner wall of the installation notch; a dovetail block, comprising a first and a second end face, a dovetail installation portion is protruding on the circumferential side wall of the dovetail block, and the second end face is recessed to form an arc-shaped abutting surface; a locking member, which is movably arranged in the quick-release base along a first direction, and one end of the locking member is conical; and an elastic member, which is sleeved on the locking member, and the elastic member drives the locking member to move toward the inside of the quick-release base along the first direction; the dovetail block slides into the dovetail groove along a second direction perpendicular to the first direction, and the outer side wall of the dovetail installation portion abuts against the inner top wall of the dovetail groove, and the second end face abuts against the inner bottom wall of the dovetail groove, and the elastic member drives the locking member to make the conical end abut against the arc-shaped abutting surface along the first direction. This quick-release installation structure can quickly and efficiently install and disassemble photographic equipment.

Description

Technical Field

[0001] The invention relates to the technical field of photographic equipment, in particular to a quick-release installation structure. Background Art

[0002] The installation and fixation of photographic equipment on the market now usually adopts the following methods: fixing the photographic equipment on the fixing seat by setting bolts, fixing it directly by clamping structure, or directly clamping it and fixing it by using wedge surface. When clamping is used, it can only be fixed in one position, and the fixing effect is not good due to the processing tolerance of the parts.

[0003] The above-mentioned installation and fixing methods of photographic equipment are inconvenient to operate and have poor fixing effects, and cannot achieve fast and efficient installation of photographic equipment. Summary of the invention

[0004] Based on this, it is necessary to provide a quick-release structure that can quickly and efficiently install photographic equipment in order to solve the problem that the installation structure of photographic equipment is not fast and efficient enough.

[0005] A quick-release installation structure, comprising:

[0006] A quick-release base, comprising a first base end and a second base end opposite to each other, wherein the first base end is recessed toward the second base end to form a mounting notch, and a dovetail groove is provided on a circumferential inner wall of the mounting notch;

[0007] A dovetail block, comprising a first end face and a second end face opposite to each other, wherein a circumferential side wall of the dovetail block is formed between the first end face and the second end face, a dovetail mounting portion is protruding from the circumferential side wall, and the second end face is recessed toward the first end face to form an arc-shaped abutting surface;

[0008] A locking member is movably arranged along a first direction through the quick-release base, and one end of the locking member is conical; and

[0009] An elastic member is sleeved on the locking member, and the elastic member can drive the locking member to move along the first direction toward the quick-release base; the dovetail block slides into the dovetail groove along a second direction perpendicular to the first direction, and the outer wall of the dovetail mounting portion abuts against the inner top wall of the dovetail groove, and the second end face abuts against the inner bottom wall of the dovetail groove, and the elastic member drives the locking member to make the conical end abut against the arc-shaped abutting surface along the first direction.

[0010] The above-mentioned quick-release installation structure can slide into the dovetail groove of the quick-release base through the dovetail block, the outer wall of the dovetail installation part abuts against the inner top wall of the dovetail groove, and the second end face of the dovetail block abuts against the inner bottom wall of the dovetail groove, forming a stable line contact abutment. In addition, under the elastic action of the elastic member, the conical end of the locking member will move toward the quick-release base along the first direction, so that the upper end face of the conical end abuts against the arc-shaped abutting surface of the dovetail block, and the lower end face abuts against the inner cavity bottom wall of the quick-release base. Through this structural setting, the photographic equipment can be installed on the dovetail block, and the quick-release base is installed on the bracket. When the photographic equipment needs to be quickly installed, there is no need to repeatedly tighten or loosen the screws or nuts. It only needs to slide the dovetail block into the middle of the quick-release base to quickly and securely install the photographic equipment on the bracket. When it is necessary to remove the photographic equipment, it is only necessary to push the conical end outward from the quick-release base to separate the conical end from the arc-shaped abutting surface and the inner cavity bottom wall of the quick-release base, and the photographic equipment can be taken out of the quick-release base along with the dovetail block. Since the structure is small in size, low in cost, and has low precision requirements (the dimensional errors of each part can be compensated by the conical end under the elastic action of the elastic member), it can be widely used in various fields of photographic equipment, and any part that needs to be disassembled can be connected by this structure.

[0011] In one embodiment, the arcuate abutting surface includes a first abutting surface, a second abutting surface and a third abutting surface, the opposite sides of the second abutting surface are connected to the first abutting surface and the third abutting surface respectively, and the conical end moves along the first direction and abuts against the first abutting surface and the third abutting surface. The conical end and the arcuate abutting surface can form a stable abutment at two positions, and can form a stable abutment in both the vertical direction and the horizontal direction, so as to prevent the dovetail block and the quick release base from moving.

[0012] In one embodiment, the second abutting surface is an inwardly concave arc-shaped surface, and the first abutting surface and the third abutting surface are inclined surfaces extending at an angle to two sides of the second abutting surface.

[0013] In one embodiment, a movable cavity is provided inside the quick-release base along the first direction, the movable cavity includes a cavity mating end, the locking member movably passes through the movable cavity, and the conical end moves along the first direction and abuts against the inner side wall of the cavity mating end.

[0014] In one embodiment, the cavity mating end includes a first mating surface, a second mating surface and a third mating surface, the second mating surface is an arc surface, the opposite sides of the second mating surface are respectively connected to the first mating surface and the third mating surface, the first mating surface and the third mating surface are inclined surfaces extending at an angle to the two sides of the second mating surface, and the conical end moves along the first direction and abuts against the first mating surface and the third mating surface. It can be ensured that the conical end and the cavity mating end form stable abutment at two positions, and can form stable abutment in both vertical and horizontal directions to prevent movement between the dovetail block and the quick-release base.

[0015] In one embodiment, the elastic member is a spring, a first step is provided in the movable cavity, a second step is provided on the outer side of the locking member, the spring is sleeved on the locking member, and the two ends of the spring are respectively in contact with the first step and the second step, the elastic force of the spring causes the conical end to move toward the quick release base along the first direction, and causes the conical end to press against the arcuate contact surface and the inner side wall of the cavity matching end; drives the locking member away from the conical end to move toward the quick release base, and compresses the spring to separate the conical end from the arcuate contact surface and the inner side wall of the cavity matching end. This allows the locking member to stably move along the first direction in the quick release base, and achieves rapid installation and fast disassembly.

[0016] In one embodiment, the locking member includes a locking push rod and a pushing rod, one end of the locking push rod is directly connected to one end of the pushing rod or is indirectly connected through a connecting member, the cross-sectional area of ​​the locking push rod is larger than the cross-sectional area of ​​the pushing rod, the second step is formed at the connection between the locking push rod and the pushing rod, and the end of the pushing rod away from the locking push rod is the conical end.

[0017] In one embodiment, a blocking portion spaced apart from the first step is provided in the movable cavity, and a limiting portion is provided on the tightening rod. When the conical end moves toward the quick-release base, the limiting portion abuts against the blocking portion to limit the position.

[0018] In one embodiment, the dovetail block is square, and four dovetail mounting parts are provided, which are respectively protruded on the four side walls of the dovetail block, and dovetail grooves are provided on the circumferential inner wall of the mounting notch, and two opposite dovetail mounting parts are respectively abutted in the opposite dovetail grooves. The dovetail block can slide into the dovetail groove of the quick-release base from any angle to form a stable installation.

[0019] In one embodiment, the middle portion of the inner top wall of the dovetail groove is concave. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a quick-release installation structure of the present invention;

[0021] Figure 2 for Figure 1 The schematic diagram of the exploded structure of the quick-release installation structure is shown;

[0022] Figure 3 It is a structural schematic diagram of another embodiment of the quick-release installation structure of the present invention;

[0023] Figure 4 for Figure 3 A cross-sectional view of the quick-release installation structure along the AA direction;

[0024] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at D in the middle;

[0025] Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at E in the middle;

[0026] Figure 7 for Figure 3 A cross-sectional view of the quick-release installation structure along the BB direction;

[0027] Figure 8 It is a structural schematic diagram of another embodiment of the quick-release installation structure of the present invention;

[0028] Fig. 9 for Figure 8 The quick-release installation structure is shown in a cross-sectional view along the CC direction.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 100. Quick-release installation structure; 1. Quick-release base; 11. First base end; 12. Second base end; 13. Dovetail groove; 131. Inner top wall of dovetail groove; 132. Inner bottom wall of dovetail groove; 14. Movable cavity; 141. Cavity mating end; 1411. First mating surface; 1412. Second mating surface; 1413. Third mating surface; 142. First step; 143. Blocking part; 2. Dovetail block; 21. First end face; 22. Second end face; 23. Dovetail installation part; 24. Arc-shaped abutting surface; 241. First abutting surface; 242. Second abutting surface; 243. Third abutting surface; 3. Locking member; 31. Conical end; 32. Second step; 33. Locking push rod; 34. Tightening rod; 341. Limiting part; 4. Elastic member. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the specific details described below are only part of the embodiments of the present invention, and the present invention can also be implemented in many other embodiments different from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] See also Figure 1 and Figure 2 In one embodiment, a quick-release installation structure 100 includes: a quick-release base 1, a dovetail block 2, a locking member 3 and an elastic member 4. The quick-release base 1 includes a first base end 11 and a second base end 12 opposite to each other in the thickness direction. The first base end 11 can be the top of the quick-release base 1, and the second base end 12 can be the bottom of the quick-release base 1. The first base end 11 is recessed toward the second base end 12 to form a mounting notch, and a dovetail groove 13 is provided on the circumferential inner wall of the mounting notch. The dovetail block 2 includes a first end face 21 and a second end face 22 opposite to each other. The first end face 21 can be the top face of the dovetail block 2, and the second end face 22 can be the bottom face of the dovetail block 2. A circumferential side wall of the dovetail block 2 is formed between the first end face 21 and the second end face 22, and a dovetail mounting portion 23 is protruding from the circumferential side wall. The second end face 22 is recessed toward the first end face 21 to form an arc-shaped abutting surface 24. The locking member 3 is movably arranged in the quick release base 1 along the first direction, and one end of the locking member 3 is conical. The elastic member 4 is sleeved on the locking member 3, and the elastic member 4 can drive the locking member 3 to move in the quick release base 1 along the first direction.

[0035] See also Figure 3 and Figure 4 The quick-release installation structure 100 can slide into the dovetail groove 13 of the quick-release base 1 along a second direction perpendicular to the first direction through the dovetail block 2, see Figure 5 and Figure 6, the outer wall of the dovetail mounting portion 23 abuts against the inner top wall 131 of the dovetail groove, and the second end face 22 of the dovetail block 2 abuts against the inner bottom wall 132 of the dovetail groove, forming a stable line contact abutment. Moreover, under the elastic action of the elastic member 4, the conical end 31 of the locking member 3 will move toward the quick-release base 1 along the first direction, so that the upper end face of the conical end 31 abuts against the arc-shaped abutting surface 24 of the dovetail block 2, and the lower end face abuts against the inner cavity bottom wall of the quick-release base 1. Through this structural setting, the photographic equipment can be installed on the dovetail block 2, and the quick-release base 1 is installed on the bracket. When the photographic equipment needs to be quickly installed, there is no need to repeatedly tighten or loosen the screws or nuts. It is only necessary to slide the dovetail block 2 into the middle of the quick-release base 1 to quickly and securely install the photographic equipment on the bracket. When it is necessary to remove the photographic equipment, it is only necessary to push the conical end 31 outward from the quick-release base 1, so that the conical end 31 is separated from the arc-shaped abutting surface 24 and the inner cavity bottom wall of the quick-release base 1, and the photographic equipment can be taken out of the quick-release base 1 along with the dovetail block 2. Since the structure is small in size, low in cost, and does not require high precision (the dimensional errors of each part can be compensated by the conical end 31 under the elastic action of the elastic member 4), it can be widely used in various fields of photographic equipment, and as long as it needs to be disassembled, it can be connected by this structure. It should be noted that the first direction can be horizontal, and the second direction can be vertical.

[0036] See also Figure 7 In one embodiment, the arcuate abutting surface 24 includes a first abutting surface 241, a second abutting surface 242 and a third abutting surface 243. The opposite sides of the second abutting surface 242 are connected to the first abutting surface 241 and the third abutting surface 243 respectively, and the conical end 31 moves in the lateral direction and abuts against the first abutting surface 241 and the third abutting surface 243. The conical end 31 and the arcuate abutting surface 24 can form a stable abutment at two positions, and can form a stable abutment in both the vertical direction and the horizontal direction to prevent the dovetail block 2 and the quick-release base 1 from moving. Specifically, the second abutting surface 242 is a concave arcuate surface, and the first abutting surface 241 and the third abutting surface 243 are inclined surfaces extending at an angle to the two sides of the second abutting surface 242.

[0037] See also Figure 4 In another embodiment, the inside of the quick release base 1 is provided with an active cavity 14 in the transverse direction, and the active cavity 14 includes a cavity mating end 141, and the cavity mating end 141 is communicated with the outside of the quick release base 1. The locking member 3 movably penetrates the active cavity 14, and the conical end 31 moves in the transverse direction and abuts against the inner side wall of the cavity mating end 141.

[0038] See also Figure 4 and Figure 7Specifically, the cavity mating end 141 includes a first mating surface 1411, a second mating surface 1412 and a third mating surface 1413. The second mating surface 1412 is an arc surface. The opposite sides of the second mating surface 1412 are respectively connected to the first mating surface 1411 and the third mating surface 1413. The first mating surface 1411 and the third mating surface 1413 are inclined surfaces extending at an angle to the two sides of the second mating surface 1412. The conical end 31 moves in the lateral direction and abuts against the first mating surface 1411 and the third mating surface 1413. It can ensure that the conical end 31 and the cavity mating end 141 form stable abutment at two positions, and can form stable abutment in both the vertical direction and the horizontal direction to prevent the dovetail block 2 and the quick-release base 1 from moving.

[0039] See also Figure 2 and Figure 4 In a specific embodiment, the elastic member 4 is a spring. A first step 142 is provided in the movable cavity 14, a second step 32 is provided on the outer side of the locking member 3, the spring is sleeved on the locking member 3, and the two ends of the spring are respectively in contact with the first step 142 and the second step 32. The elastic force of the spring causes the conical end 31 to move laterally toward the quick release base 1, and causes the conical end 31 to abut against the arc-shaped abutting surface 24 and the inner side wall of the cavity matching end 141; the end of the locking member 3 away from the conical end 31 is driven to move toward the quick release base 1, and the spring is compressed to cause the conical end 31 to separate from the arc-shaped abutting surface 24 and the inner side wall of the cavity matching end 141. This elastic abutment structure ensures that even if a gap occurs between the conical end 31 and the inner wall of the arc-shaped abutment surface 24 and the cavity mating end 141 due to dimensional tolerance, the elastic drive of the spring will further press the conical end 31 into the quick-release base 1 to compensate for the gap caused by the error, thereby ensuring that the dovetail block 2, the locking piece 3 and the quick-release base 1 are tightly abutted against each other without shaking.

[0040] Please continue reading Figure 2 and Figure 4 On the basis of the above specific embodiment, the locking member 3 includes a locking push rod 33 and a tightening rod 34. One end of the locking push rod 33 is connected to one end of the tightening rod 34, the cross-sectional area of ​​the locking push rod 33 is larger than the cross-sectional area of ​​the tightening rod 34, and the connection between the locking push rod 33 and the tightening rod 34 forms a second step 32. One end of the tightening rod 34 away from the locking push rod 33 is a conical end 31. Furthermore, a blocking portion 143 spaced from the first step 142 is provided in the movable cavity 14, and a limiting portion 341 is provided on the tightening rod 34. When the conical end 31 moves toward the quick-release base 1, the limiting portion 341 abuts against the blocking portion 143 to limit the position. Specifically, one end of the locking push rod 33 and one end of the tightening rod 34 can be directly threaded, clamped, etc., or can be indirectly connected by setting a connecting member.

[0041] See also Figure 1 , Figure 8 and Fig. 9 In one embodiment, the dovetail block 2 is square, and four dovetail mounting portions 23 are provided, and are respectively protruded on the four side walls of the dovetail block 2. Dovetail grooves 13 are oppositely provided on the circumferential inner wall of the mounting notch, and two opposite dovetail mounting portions 23 are respectively abutted in the oppositely provided dovetail grooves 13. The dovetail block 2 can slide into the dovetail groove 13 of the quick-release base 1 from any angle to form a stable installation. Furthermore, the middle part of the inner top wall 131 of the dovetail groove is concave, which can make the dovetail block 2 and the dovetail groove 13 more tightly pressed.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations, substitutions and improvements can be made without departing from the concept of the present invention, and these should all be included in the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the claims.

Claims

1. A quick-release installation structure, characterized in that: include: A quick-release base, comprising a first base end and a second base end opposite to each other, wherein the first base end is recessed toward the second base end to form a mounting notch, and a dovetail groove is provided on a circumferential inner wall of the mounting notch; A dovetail block, comprising a first end face and a second end face opposite to each other, wherein a circumferential side wall of the dovetail block is formed between the first end face and the second end face, a dovetail mounting portion is protruding from the circumferential side wall, and the second end face is recessed toward the first end face to form an arc-shaped abutting surface; A locking member is movably arranged along a first direction through the quick-release base, and one end of the locking member is conical; and An elastic member is sleeved on the locking member, and the elastic member can drive the locking member to move along the first direction toward the inside of the quick-release base; the dovetail block slides into the dovetail groove along a second direction perpendicular to the first direction, and the outer wall of the dovetail mounting portion abuts against the inner top wall of the dovetail groove, and the second end face abuts against the inner bottom wall of the dovetail groove, and the elastic member drives the locking member to make the conical end abut against the arc-shaped abutting surface along the first direction; The arc-shaped abutting surface includes a first abutting surface, a second abutting surface and a third abutting surface, the opposite sides of the second abutting surface are respectively connected to the first abutting surface and the third abutting surface, and the conical end moves along the first direction and abuts against the first abutting surface and the third abutting surface; An active cavity is provided inside the quick-release base along the first direction, the active cavity includes a cavity mating end, the locking member movably passes through the active cavity, and the conical end moves along the first direction and abuts against the inner side wall of the cavity mating end; The cavity mating end includes a first mating surface, a second mating surface and a third mating surface, the second mating surface is an arc surface, and the opposite sides of the second mating surface are respectively connected to the first mating surface and the third mating surface, the first mating surface and the third mating surface are inclined surfaces extending at an angle to the two sides of the second mating surface, and the conical end moves along the first direction and is tightly pressed against the first mating surface and the third mating surface.

2. The quick-release installation structure according to claim 1, characterized in that: The second abutting surface is an inwardly concave arc-shaped surface, and the first abutting surface and the third abutting surface are inclined surfaces extending at an angle to both sides of the second abutting surface.

3. The quick-release installation structure according to claim 1, characterized in that: The elastic member is a spring, a first step is provided in the movable cavity, a second step is provided on the outer side of the locking member, the spring is sleeved on the locking member, and two ends of the spring are respectively abutted against the first step and the second step, the elastic force of the spring causes the conical end to move toward the quick-release base along the first direction, and causes the conical end to abut against the arc-shaped abutting surface and the inner side wall of the cavity mating end; the locking member is driven to move one end away from the conical end toward the quick-release base, and the spring is compressed to cause the conical end to disengage from the arc-shaped abutting surface and the inner side wall of the cavity mating end.

4. The quick-release installation structure according to claim 3, characterized in that: The locking member includes a locking push rod and a pushing rod. One end of the locking push rod is directly connected to one end of the pushing rod or is indirectly connected through a connecting member. The cross-sectional area of ​​the locking push rod is larger than the cross-sectional area of ​​the pushing rod. The second step is formed at the connection between the locking push rod and the pushing rod. The end of the pushing rod away from the locking push rod is the conical end.

5. The quick-release installation structure according to claim 4, characterized in that: A blocking portion spaced apart from the first step is provided in the movable cavity, and a limiting portion is provided on the tightening rod. When the conical end moves toward the quick-release base, the limiting portion abuts against the blocking portion to limit position.

6. The quick-release installation structure according to claim 1, characterized in that: The dovetail block is square in shape, and four dovetail mounting parts are provided and protrude from the four side walls of the dovetail block respectively. Dovetail grooves are provided on the circumferential inner wall of the mounting notch, and two opposite dovetail mounting parts are respectively abutted in the opposite dovetail grooves.

7. The quick-release installation structure according to claim 6, characterized in that: The middle portion of the inner top wall of the dovetail groove is concave.

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