Ball head unlocking and locking mechanism

Abstract

The utility model discloses a ball head unlocking and locking mechanism which comprises a ball head seat and a ball head located in the ball head seat and further comprises a first rotating piece and a second rotating piece which are located in the ball head seat, the first rotating piece is in transmission connection with the second rotating piece, and the diameter of the first rotating piece is larger than that of the second rotating piece. The second rotating piece is connected with a driving piece located on the outer side of the ball cup, and when the driving piece is stressed to drive the second rotating piece to rotate, the driving piece drives the first rotating piece to move so as to achieve locking or unlocking of the ball in the ball cup. According to the utility model, the effect that the pinion drives the bull gear to carry out transmission and control with greater force in a limited space is realized, so that the locking or unlocking of the ball head is controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball head unlocking in camera assembly, especially a ball head unlocking and locking mechanism. BACKGROUND

[0002] Ball head is often used for assembling quick mounting mechanism as an auxiliary equipment for photography, however, in order to fix the position, the ball head is basically locked by pressing down under unilateral stress, and the adjustment difficulty is great in the whole process, which affects the use. UTILITY MODEL CONTENTS

[0003] The utility model discloses a ball head unlocking and locking mechanism, which realizes the linkage of the pinion driving the gear in the limited space through the rotation control of the rotating part, and utilizes the linkage to make the ball head have more contact surfaces, thereby realizing better locking or unlocking of the ball head.

[0004] In order to realize the above-mentioned purpose, the utility model realizes through the following technical scheme.

[0005] The ball head unlocking and locking mechanism comprises a ball head seat, a ball head in the ball head seat, a first rotating part and a second rotating part in the ball head seat, the first rotating part and the second rotating part are in transmission connection, and the diameter of the first rotating part is greater than the diameter of the second rotating part.

[0006] The second rotating part is connected with a driving part outside the ball head seat, the driving part drives the second rotating part to rotate, and drives the first rotating part to move to realize the locking or unlocking of the ball head in the ball head seat.

[0007] Further, the first rotating part is arranged close to the ball head in the ball head seat, the first rotating part rotates synchronously and moves up and down, generates abutment with the ball head, limits the movement trend of the ball head in the ball head seat, or moves away from the ball head and eliminates the abutment, so that the ball head can move in the ball head seat.

[0008] Further, the first rotating part is a center wheel, and gear structure is arranged on at least one section of the outer side of the center wheel in the circumferential direction.

[0009] Further, the utility model further comprises an upper cover plate and / or a ball head pressing cover on the upper side and / or the lower side of the center wheel, and at least one of the center wheel or the ball head pressing cover generates the guiding trend of approaching or moving away from the ball head.

[0010] Further, one of the center wheel and the upper cover plate and / or the ball head pressing cover is provided with a spiral protrusion, and the other is provided with a spiral recess corresponding to the spiral protrusion.

[0011] Further, in the circumferential direction, the height of the spiral protrusion presents the trend of gradually deepening.

[0012] Furthermore, as the spiral protrusion rotates or eccentrically around the center of the central wheel, it approaches or moves away from the ball head.

[0013] Furthermore, the first rotating component is a gear mechanism, and a connecting component is provided at the center of the gear mechanism, with the lower part of the connecting component being fixedly connected to the driving component.

[0014] Furthermore, the lower part of the connector is provided with several adjustment positions, and the drive component is assembled with several adjustment positions to form several maximum rotation ranges around the connector.

[0015] Furthermore, the driving component is a wrench with an arc-shaped inner wall, and the outer side of the ball head seat is recessed to form a storage groove that matches the wrench. The wrench moves away from or closer to the storage groove during rotation.

[0016] The beneficial effects of this utility model are as follows:

[0017] In this invention, the transmission action of large and small gears is used to achieve linkage on both sides of the ball head. The large gear, which is set in a limited space, is driven by the small gear on the side to complete the rotation control. The structure is ingenious and the cost is low.

[0018] In this invention, the rotation range of the gear can be controlled by adjusting the assembly position, thereby indirectly achieving further control such as locking, realizing fine-tuning, and having very good practicality. Attached Figure Description

[0019] Figure 1 A schematic diagram of the ball head unlocking and locking mechanism provided by this utility model;

[0020] Figure 2 A schematic diagram of the assembled ball head unlocking and locking mechanism and quick-assembly mechanism provided by this utility model;

[0021] Figure 3 Exploded view provided for this utility model;

[0022] Figure 4 A cross-sectional view of the ball head unlocking and locking mechanism provided by this utility model;

[0023] Figure 5 An assembly diagram of the upper cover plate and the first rotating component provided by this utility model;

[0024] Figure 6 Assembly diagram of the top cover plate, the first rotating component, and the ball head cap provided for this utility model;

[0025] Figure 7 A schematic diagram of the ball head locking state provided by this utility model;

[0026] Figure 8 The cross-sectional view of the ball head locking state is provided for the utility model;

[0027] Figure 9 The structure schematic view of the ball head unlocking state is provided for the utility model;

[0028] Figure 10 The cross-sectional view of the ball head unlocking state is provided for the utility model;

[0029] Figure 11 The assembly drawing of the ball head locking state is provided for the utility model.

[0030] In the drawings:

[0031] 100, ball head seat; 110, first rotating part; 111, spiral recess; 120, second rotating part; 130, driving part; 140, upper cover plate; 141, spiral protrusion; 150, ball head gland; 160, storage groove; 200, ball head; 300, connecting part; 400, quick mounting mechanism. DETAILED DESCRIPTION

[0032] The utility model will be explained in detail below in combination with each embodiment shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or substitution of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0033] Referring to the drawings, Figures 1-11 The ball head unlocking mechanism in the embodiment includes ball head seat 100 and ball head 200 in ball head seat 100, and further includes first rotating part 110 and second rotating part 120 in ball head seat 100, first rotating part 110 and second rotating part 120 are drivingly connected, the diameter of first rotating part 110 is greater than the diameter of second rotating part 120; the driving connection at this time can be vertical driving connection or horizontal driving connection arranged adjacently. In the embodiment, the assembly mode of driving small gear by large gear is ingeniously applied to ball head locking, and rotation control in smaller ball head seat 100 is realized.

[0034] Specifically, in the embodiment, the second rotating member 120 can partially extend into the ball head seat 100, and then be in transmission connection with the first rotating member 110 in the ball head seat 100. In order to facilitate control, the second rotating member 120 is connected with the driving member 130 located outside the ball head seat 100. The driving member 130 drives the second rotating member 120 to rotate, and drives the first rotating member 110 to move to realize the locking or unlocking of the ball head 200 in the ball head seat 100. For example, the first rotating member 110 generates an indirect or direct force acting on the ball head, limits the rotation of the ball head, or makes the ball head continue to rotate.

[0035] In the prior art, the extrusion action is mainly direct, and the external force applying mode driven by the gear is lacking. In the embodiment, the pinion in the rotating member drives the large gear in the ball head seat to move, and realizes the driving control of small to large in a limited space range. The force applying mode has better stability and higher safety.

[0036] In the embodiment, the rotating arrangement is adopted, and the rotating member is selected. Then, the rotating member can be in contact with the ball head at multiple positions in the circumferential direction, so that the force balance is achieved, and the extrusion stability is high.

[0037] In the embodiment, the first rotating member is specifically introduced as follows:

[0038] Referring to the drawings, the first rotating member 110 in the embodiment is arranged close to the ball head 200 in the ball head seat 100. The first rotating member 110 rotates synchronously and moves up and down to abut against the ball head 200, limits the movement trend of the ball head 200 in the ball head seat 100, and realizes the locking state. At this time, the ball head 200 is away from the abutment of the ball head seat 100, and the movement trend of the ball head 200 in the ball head seat 100 is realized. At this time, the ball head is in the unlocking state, and the ball head can continue to rotate and be adjusted in angle.

[0039] Preferably, in order to realize relatively stable rotation control, the first rotating member 110 can be composed of a center wheel. The center wheel is coaxially arranged with the ball head seat 100, and the centers of the two are on a straight line. The circumferential arrangement makes the ball head 200 arranged on the same axis as far as possible. At this time, the first rotating member 110 is equivalent to the outer periphery of the ball head 200. When the first rotating member 110 is close to the ball head, the first rotating member 110 can be symmetrically in contact with the ball head as far as possible, and the circumferential direction of the ball head is arranged in a circle. The contact surface is large, and the locking or unlocking efficiency is higher.

[0040] In order to realize the transmission connection with the second rotating part 120, the gear structure is arranged at least in one section in the circumferential direction outside the center wheel. At this time, the gear structure is arranged at least in one third of the circumference, or the whole circumference, which only needs to realize the engagement with the first rotating part 110, and then the length in the whole engagement process is equal to the up and down movement distance of the upper head locking.

[0041] Referring to Fig. Figures 5-6 In the embodiment, in order to ensure the integrity of the whole head mechanism, the upper cover plate 140 and the head gland 150 are arranged on the upper and lower sides of the first rotating part 110 respectively. Of course, one can be arranged to cooperate with the center wheel to complete the application and control of the action force on the head. Specifically, in order to act on the head, it is necessary to generate the action trend of guiding the whole device up and down, that is, at least one of the center wheel or the head gland 150 generates the guiding trend of approaching or moving away from the head 200. At this time, it is preferred to be arranged on the center wheel or the head gland, and the purpose is that once the upper cover plate 140 is arranged at the uppermost position, especially in the upward movement, it is difficult to directly drive the center wheel, resulting in poor action.

[0042] In order to realize the above-mentioned guiding trend, the spiral protrusion 141 is arranged on one of the center wheel, the upper cover plate 140 and / or the head gland 150, and the corresponding spiral recess 111 is arranged on the other. For example, the spiral protrusion is arranged on the upper cover plate 140 or the bottom of the first rotating part 110, and the spiral recess 111 is arranged on the upper surface of the first rotating part 110 or the upper surface of the head gland 150, so as to realize the good matching of the two. In the rotation of the first rotating part 110, the upper cover plate or the head gland generates the trend of up and down movement, and in this process, the first rotating part 110 is driven to move up and down synchronously, and the whole structure approaches or moves away from the head 200.

[0043] In the embodiment, one of the upper cover plate 140 or the head gland 150 can be fixedly connected with the first rotating part 110, or the three are directly assembled together, but the spiral protrusion and the spiral recess still exist, and in the rotation, the guiding trend of up and down is generated.

[0044] In order to realize the up and down movement trend, the height of the spiral protrusion 141 gradually deepens in the circumferential direction. The protrusion is higher and higher, which gradually moves away from the spiral recess, drives the two, so that the distance between the two is increased, and the up and down trend is generated synchronously in the rotation.

[0045] In this embodiment, the entire arrangement of the spiral protrusions 141 and the spiral recesses 111 can be rotated normally or eccentrically with the center of the center wheel as the center, such as the spiral protrusions 141 rotating along the center of the center wheel or eccentrically, approaching or moving away from the ball head 200. At this time, only rotation is needed to realize the driving of the up and down trend, which is convenient for good control.

[0046] In this embodiment, the structure of the second rotating member and its locking and fine tuning control are introduced as follows:

[0047] Referring to the drawings, the first rotating member 110 can be selected as a gear mechanism, the gear mechanism is provided with a connecting member 300 at the center, and the connecting member 300 is fixedly connected with the driving member 130 below. Through the fixed connection, the first rotating member 110 rotates with the driving member 130, thereby indirectly driving the second rotating member 120, and realizing good control of the entire structure.

[0048] In this embodiment, in order to control the rotation range of the second rotating member 120 and indirectly control the rotation range of the first rotating member 110, the lower part of the connecting member 300 is provided with several adjustment gears, and the driving member 130 is assembled with several adjustment gears to form several maximum rotation ranges with the connecting member 300 as the center. For example, if 6 gears are set, the first rotating member 110 can rotate 6 maximum distances, thereby making the up and down adjustment distance have 6 kinds, and the locking force of the ball head also has six kinds, thereby realizing the adjustment of the locking force.

[0049] Specifically, the several adjustment gears are interference surfaces with different contact surface areas formed by the concave and convex surfaces of the connecting member, and the driving member 130 is provided with an assembly groove for the connecting member 300, and the assembly groove is provided with an interference groove matched with the interference surface, thereby the interference surfaces and the interference grooves are matched to form different rotation distances of the first rotating member.

[0050] The connecting member 300 in this embodiment is a spline, and the spline is provided with several groups of teeth near the driving member 130 formed by the wrench, and each group of teeth is provided with several teeth with different areas, and the teeth are matched to realize specific adjustment.

[0051] In this embodiment, in order to facilitate operation, a wrench with an arc-shaped inner wall can be selected to form the driving member 130, the outer side of the ball head seat 100 is recessed to form a receiving groove 160 matched with the wrench, and the wrench rotates away from or approaches the receiving groove 160. For example, after use, the wrench is just stored in the receiving groove 160, and in use, the wrench is separated from the receiving groove 160. Preferably, an arc-shaped receiving groove 160 can be selected, for example, an arc-shaped receiving groove 160 is excavated at the bottom of the ball head seat 100, so that after storage, the outer surface is smooth and flat, the storage efficiency is high, and it is more beautiful, and the whole forms an integral from the outer appearance.

[0052] In this embodiment, the specific working principle is as follows:

[0053] The driving member 130 formed by the rotating wrench drives the first rotating member 110 to rotate and synchronously drives the second rotating member 120 to rotate. According to the gear selected by the wrench, the rotation distance of the second rotating member and the first rotating member is determined. In the rotation of the first rotating member and the second rotating member, due to the arrangement of the spiral protrusions and the grooves, the first rotating member 110 drives the ball head gland 150 to press the ball head downward, or the first rotating member 110 moves upward, and the ball head gland is not subjected to external force, so that the action with the ball head is reduced, and the ball head can continue to rotate.

[0054] The utility model is applied to a camera, and the specific implementation is as follows:

[0055] The quick mounting mechanism 400 is assembled on the ball head seat 100 and is used in cooperation with a camera and the like subsequently;

[0056] The first rotating member formed by the center wheel is assembled in the ball head seat 100, and the second rotating member 120 formed by the gear mechanism is assembled on the side portion. At this time, the second rotating member 120 partially extends into the ball head seat 100 and partially protrudes outward, so that the transmission connection of the center gear and the pinion gear at the ball head seat 100 is realized, specifically, the meshing connection is realized, and the mutual cooperation is realized.

[0057] In use, the pinion gear in the second rotating member 120 passes through the ball head seat and is fixedly connected with the wrench. The wrench is moved to drive the pinion gear to rotate, so as to drive the first rotating member 110 to rotate.

[0058] In order to realize the up-down movement, one of the center wheel and the upper cover plate 140 is provided with spiral protrusions, and the other is provided with spiral recesses, and the two are cooperated with each other.

[0059] In the control process, when the center wheel rotates forward and reversely, the first rotating member 110 and the upper cover plate 140 are away from or approach each other under the action of the spiral surface; when the first rotating member 110 and the upper cover plate 140 are away from each other, the ball head gland 150 is pushed to approach the ball head 200 to interfere, so that the ball head is locked. Conversely, the ball head is unlocked.

[0060] In order to carry out the range adjustment, a plurality of key teeth are arranged at the bottom of the connecting piece 300 in the embodiment, and a corresponding key groove is arranged at the matching position of the wrench. The key tooth-key groove adjustment realizes the fine adjustment of the ball head locking force, and compared with the one-step locking force, the selectivity of the embodiment is greater, and the application is more widely.

[0061] The embodiment is applied to support frames and the like, improves the adjustment efficiency of the shooting device, and has very good practicability.

[0062] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

[0063] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0064] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A ball head release mechanism comprising a ball head socket and a ball head located within the ball head socket, characterised in that, The first rotating member and the second rotating member are transmission connected, the diameter of the first rotating member is larger than the diameter of the second rotating member; The second rotating member is connected with the driving member outside the ball head seat, the driving member drives the second rotating member to rotate under force, and drives the first rotating member to move to realize the locking or unlocking of the ball head in the ball head seat.

2. The ball head un-locking mechanism according to claim 1, wherein, The first rotating member is arranged close to the ball head in the ball head seat, and the first rotating member rotates synchronously and moves up and down to abut against the ball head, limit the movement trend of the ball head in the ball head seat, or move away from the ball head to release the abutment, so that the ball head can move in the ball head seat.

3. The ball head unlock mechanism according to claim 2, wherein, The first rotating member is a center wheel, and gear structure is arranged on the outer side of the center wheel in the circumferential direction.

4. The ball head unlock mechanism according to claim 3, wherein, The upper cover plate and / or the ball head gland are arranged on the upper side and / or the lower side of the center wheel, and at least one of the center wheel and the ball head gland generates the guiding trend of moving close to or away from the ball head.

5. The ball head unlock mechanism according to claim 4, wherein, One of the center wheel and the upper cover plate and / or the ball head gland is provided with a spiral protrusion, and the other is provided with a corresponding spiral recess.

6. The ball head unlock mechanism according to claim 5, wherein, In the circumferential direction, the height of the spiral protrusion gradually deepens.

7. The ball head unlock mechanism according to claim 6, wherein, The spiral protrusion rotates close to or away from the ball head in the center of the center wheel or eccentric rotation.

8. The ball head unlock mechanism according to claim 1, wherein, The first rotating member is a gear mechanism, the gear mechanism is provided with a connecting member at the center, and the connecting member is fixedly connected with the driving member below.

9. The ball head unlock mechanism according to claim 8, wherein, The lower part of the connecting member is provided with a plurality of adjustment gears, the driving member is respectively assembled with the plurality of adjustment gears, and a plurality of maximum rotation ranges of the connecting member as the center are formed.

10. The ball head unlock mechanism according to claim 1, wherein, The driving member is a wrench with an arc-shaped inner wall, a recess is formed outside the ball head seat to form a receiving groove matched with the wrench, and the wrench moves away from or close to the receiving groove during rotation.

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