Film and television lamp support and film and television lamp

Abstract

The utility model discloses a film and television lamp support and a film and television lamp. The film and television lamp support comprises a support body, a connecting mechanism and a jacking mechanism. The connecting mechanism is located on the first side of the support body and rotationally connected with the support body. The connecting mechanism comprises a connecting base, locking pieces and at least two pressing pieces, one locking piece is arranged between every two adjacent pressing pieces, and the connecting base is connected with one locking piece close to the support body and connected with the lamp body. The jacking and pressing mechanism comprises a jacking and pressing seat, the jacking and pressing seat is arranged on the second side of the support body and connected with the support body, and a jacking and pressing part on the jacking and pressing seat applies pressure to the pressing pieces after the jacking and pressing seat is stressed, so that the at least two pressing pieces and the at least one locking piece are pressed layer by layer, and the rotating movement of the connecting seat is limited. The film and television lamp comprises a lamp body and the film and television lamp support. When the film and television lamp bracket is connected with a lamp body with an overlarge load, the locking force of the connecting mechanism can be improved only by increasing the force applied to the top pressing seat, so that the lamp body can be kept static relative to the bracket main body even if the lamp body is overweight.

Description

TECHNICAL FIELD

[0001] The utility model relates to photography technical field especially relates to a film and television lamp support and film and television lamp. BACKGROUND

[0002] In the photography industry, the lamp in the use process needs to rotate with the support to adjust the irradiation angle of the lamp, when the lamp rotates to the specified position, the locking assembly is usually needed to limit the rotating movement of the lamp, so that it is relatively static with the support, avoiding affecting the use effect of the film and television accessories on the lamp.

[0003] At present, the locking mode of the locking assembly is single-layer disc brake lock or end face and end face friction lock after the lamp is assembled on the support, if the film and television accessories assembled on the lamp are too heavy, the support locking force is insufficient, the lamp still moves relatively with the support after rotating to the specified position, causing the film and television accessories cannot be used normally, the light effect cannot be met, the use range of the whole structure is limited, and the film and television accessories cannot be carried. UTILITY MODEL CONTENTS

[0004] In order to overcome at least one defect of the prior art, the utility model provides a film and television lamp support and film and television lamp, when the film and television lamp support is connected with the lamp body with excessive load, only the force applied to the top pressing seat needs to be increased, so that the locking force of the connecting mechanism can be improved, so that the lamp body can be relatively static with the support body even if it is too heavy.

[0005] The utility model adopts the technical scheme that:

[0006] A film and television lamp support, comprising:

[0007] A support body, the support body has a first side and a second side arranged oppositely;

[0008] A connecting mechanism, the connecting mechanism is located on the first side and is connected with the support body rotatably; the connecting mechanism comprises a connecting seat, a locking piece and at least two pressing pieces, one locking piece is arranged between each adjacent two pressing pieces, the connecting seat is connected with one of the locking pieces close to the support body and is used for connecting with the lamp body;

[0009] A top pressing mechanism, the top pressing mechanism comprises a top pressing seat, the top pressing seat is arranged on the second side and is connected with the support body, the top pressing seat has a top pressing part, the top pressing part is used for extending into the first side and being connected with the pressing pieces after the top pressing seat is connected with the support body, the top pressing part is used for pressing the pressing pieces after the top pressing seat is stressed, so that the at least two pressing pieces and the at least one locking piece are pressed layer by layer, and the rotating movement of the connecting seat is limited.

[0010] Further, the top pressing seat has a through cavity and a socket, the through cavity has an opening on the first side, the end wall of the opening is formed as the top pressing part, and abuts against one of the pressing pieces close to the top pressing seat, so that the top pressing seat presses the pressing pieces after being pressed; the support body is arranged in the through cavity through the socket.

[0011] Further, at least two pressing pieces are arranged in the through cavity through the opening after the support body is arranged in the through cavity; the through cavity is provided with a top pressing ring, the top pressing ring is formed as the top pressing part, and abuts against one of the pressing pieces close to the support body.

[0012] Further, the top pressing seat is provided with a second through hole, the second through hole is arranged in the through cavity and corresponds to the first through hole, and the first through hole and the second through hole are used for connecting a connecting member.

[0013] Further, the top pressing mechanism further comprises a locking rod, the locking rod passes through the connecting mechanism and the support body, and is arranged in the top pressing seat in a rotating manner, and the locking rod is used for driving the top pressing seat to press the pressing pieces when rotating.

[0014] Further, the top pressing mechanism further comprises a locking rod, the locking rod passes through the connecting mechanism and the support body, and is arranged in the top pressing seat in a rotating manner, and the locking rod is used for driving the top pressing seat to press the pressing pieces when rotating.

[0015] Further, the top pressing mechanism further comprises a locking rod, the locking rod passes through the connecting mechanism and the support body, and is arranged in the top pressing seat in a rotating manner, and the locking rod is used for driving the top pressing seat to press the pressing pieces when rotating.

[0016] Further, the connecting seat comprises a connecting block and a connecting ring, the connecting ring is protruded from the periphery of the connecting block, and is used for abutting against the pressing pieces or the locking pieces when the connecting seat is pressed; the connecting block is used for connecting with the lamp body.

[0017] Further, the first end is provided with a top pressing plate, the top pressing plate is arranged on the first side, the connecting block is provided with a third through hole, the third through hole is used for connecting the locking rod, and the top pressing plate is used for abutting against the end wall of the third through hole after the locking rod passes through the third through hole, and is used for pressing the connecting seat when the locking rod rotates.

[0018] Further, the connecting seat is provided with a limiting block, the locking sheet is provided with a first limiting hole, the first limiting hole is correspondingly arranged with the limiting block, and the limiting block is used for penetrating the first limiting hole.

[0019] Further, the limiting block is square, and the first limiting hole is a square hole.

[0020] Further, the connecting mechanism further comprises a locking disc, the locking disc is provided with a second limiting hole, the second limiting hole is correspondingly arranged with the first limiting hole, and the limiting block is arranged in the second limiting hole by penetrating the first limiting hole.

[0021] Further, the locking disc and the adjacent pressing sheet are further provided with one locking sheet.

[0022] A movie and television lamp, comprising a lamp body and the movie and television lamp support.

[0023] In conclusion, the movie and television lamp support and the movie and television lamp have the following technical effects.

[0024] In use, the lamp body of the movie and television lamp is connected with the connecting seat, the lamp body can be rotated relative to the support main body due to the fact that the whole connecting mechanism is rotationally connected with the support main body, when it is needed to lock the lamp body, an external force is only needed to be applied to the top pressing seat, at this time, the top pressing part can press the pressing sheet, so that the at least two pressing sheets and the at least one locking sheet are pressed layer by layer, the pressing state can generate a large friction force between the pressing sheet and the locking sheet and the surfaces of the connecting seat in contact with the pressing sheet and the locking sheet, the rotation of the connecting seat must overcome the friction force, and the rotation of the connecting seat is limited due to the fact that the friction force is large, so that the lamp body is not easy to rotate, and the probability of loosening in use is avoided.

[0025] When the weight of the lamp body connected with the connecting seat changes, the pressure applied by the top pressing seat can be adjusted, the friction force between the pressing sheet, the locking sheet and the connecting seat is adjusted, the locking force of the whole structure is adjusted, different weights of the lamp body are adapted to, the support can be adapted to movie and television lamps of various specifications, and the universality and applicability of the support are improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the utility model;

[0027] Figure 2 It is a structural exploded view of the utility model;

[0028] Figure 3 It is a structural sectional view of the utility model;

[0029] Figure 4 It is a structural sectional view of the utility model;

[0030] Figure 5 is a structural sectional view of the utility model;

[0031] In the figure, the signification of the sign is as follows:

[0032] 10, support main body; 11, first side; 12, second side; 20, connecting mechanism; 21, connecting seat; 211, connecting ring; 212, connecting block; 213, third through hole; 214, limiting block; 22, compression sheet; 221, first through hole; 23, locking sheet; 231, first limiting hole; 24, locking disc; 30, top pressing seat; 311, through cavity; 312, top pressing ring; 313, bayonet; 314, opening; 315, second through hole; 32, locking rod; 321, first end; 322, second end; 323, top pressing plate; 40, handle; 41, gasket. DETAILED DESCRIPTION

[0033] In order to better understand and implement, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0034] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0036] Example 1,

[0037] Reference Figures 1 to 5The utility model discloses a kind of movie and television lamp supports, including support main body 10, connecting mechanism 20 and top pressure mechanism, support main body 10 has oppositely arranged first side 11 and second side 12, connecting mechanism 20 is arranged at first side 11 and is rotatably connected with support main body 10, specifically connecting mechanism 20 includes connecting seat 21, locking piece 23 and at least two compression pieces 22, one locking piece 23 is arranged between every two adjacent compression pieces 22, connecting seat 21 is connected with one of locking piece 23 close to support main body 10, and is connected with lamp body;Top pressure mechanism includes top pressure seat 30, top pressure seat 30 is arranged at second side 12 and is connected with support main body 10, top pressure seat 30 has top pressure part, top pressure part enters first side 11 after top pressure seat 30 is connected with support main body 10, and is connected with compression piece 22, top pressure part is pressed on compression piece 22 after top pressure seat 30 is stressed, so that at least two compression pieces 22 and at least one locking piece 23 are pressed layer by layer, to limit the rotational movement of connecting seat 21.

[0038] On the basis of the above structure, when assembling, connecting mechanism 20 can be rotatably connected with support main body 10 through pivot, bolt or screw structure, so that the lamp body can be rotated with connecting seat 21 after the lamp body is assembled with connecting seat 21 in connecting mechanism 20, to facilitate adjusting the angle of the lamp body to meet different shooting requirements.

[0039] When it is necessary to fix the lamp body, only need to apply external force to top pressure seat 30, since the top pressure part on top pressure seat 30 enters first side 11 and is connected with compression piece 22 after being connected with support main body 10, at least two compression pieces 22 can be locked by top pressure seat 30, and one locking piece 23 is arranged between each compression piece 22, so when top pressure seat 30 is stressed, force is transmitted from top pressure seat 30 to top pressure part, top pressure part directly contacts with compression piece 22 and applies force to compression piece 22, compression piece 22 transmits force to adjacent locking piece 23 and next compression piece 22 in turn after being pressed, in this way, a coherent force transmission path is formed, so that each component can be subjected to pressure, realizing layer-by-layer compression, so that each compression piece 22 and locking piece 23 are limited by adjacent components, the mutual restraint force can prevent relative movement between them, and thus the whole structure is more stable and less likely to loosen, so connecting seat 21 and the lamp body can be locked, and the rotational movement of connecting seat 21 and the lamp body connected therewith is limited, to balance flexibility and stability at the same time.

[0040] Specifically, when the weight of the lamp body connected with the connecting seat 21 increases, the operator only needs to increase the force applied to the top pressing seat 30, at this time, the top pressing seat 30 transmits greater force to the pressing piece 22 through the top pressing part, and due to the fact that a locking piece 23 is arranged between every two adjacent pressing pieces 22, the force is sequentially transmitted between the pressing piece 22 and the locking piece 23, so that the normal pressure between them is continuously superimposed, and the transmission and superimposition effect of the force can significantly increase the normal pressure between the pressing piece 22 and the locking piece 23 and the parts in contact with each other, and in the case that the friction coefficient is unchanged, the friction force will increase accordingly, and the connecting seat 21 needs to overcome these friction forces to rotate, thereby better preventing the rotation of the connecting seat 21, providing sufficient resistance for the heavier lamp body, preventing it from shaking due to the torque generated by gravity, and enabling the lamp body of different loads to be firmly locked on the support main body 10, so that the support main body 10 can be applied to lamp bodies of different loads and has a wide range of applications.

[0041] More specifically, when the plurality of pressing pieces 22 and locking pieces 23 are pressed layer by layer, the plurality of pressing pieces 22 and locking pieces 23 form a plurality of friction surfaces in contact with each other, and the friction force can be effectively generated on each friction surface, and the total friction force is superimposed, and the greater the total friction force, the stronger the locking force of the entire structure, so that it can be applied to lamp bodies with heavier loads; compared with the single-layer disc brake disc locking, which mainly relies on the single-surface contact between the disc brake pad and the disc to generate friction force, the effective contact area of the end-to-end friction locking mode is also usually limited to two opposite planes, and the contact area is relatively small, and the generated friction force and locking force are also relatively small.

[0042] At the same time, the layer-by-layer pressing structure of the plurality of pressing pieces 22 and locking pieces 23 has a certain redundancy, that is, even if a certain pressing piece 22 or locking piece 23 has a problem, other components can still ensure the stability of the connection and the locking force to a certain extent, thereby improving the reliability of the entire system.

[0043] In addition, the top pressing part in the embodiment is an end face of the top pressing seat 30 used to contact the pressing piece 22 or a block-shaped or ring-shaped structure formed on the top pressing seat, and the top pressing part is fully attached to the entire end face of the pressing piece 22 or along the periphery of the pressing piece. When the pressing piece 22 is subjected to the force of the top pressing seat 30, the overall stress is uniform and is not prone to local deformation or distortion, which helps to keep the relative positions of the components in the connection mechanism 20 stable, making the entire connection structure more stable and being able to better withstand the weight of the lamp body and various external forces. Compared with partial attachment, the local stress of the pressing piece 22 is too large, which is prone to deformation or rupture, thereby affecting the positional relationship of other components such as the connecting seat 21 and the locking piece 23, reducing the stability of the entire connection mechanism 20, and even causing the connection to loosen, thereby affecting the normal use of the lamp body.

[0044] It should be noted that the top pressing seat 30 in the embodiment can be a cover or a clamp structure with a cavity or a bayonet 313, and a combination of a screw and a nut is arranged at the position of the top pressing seat 30 on the second side 12. When assembling, the top pressing seat 30 is covered or clamped outside the pressing piece 22, the locking piece 23 and the support body 10. At this time, one of the pressing piece 22 and the support body 10 respectively abuts against the inner wall of the cavity or the bayonet 313. Then the screw is arranged outside the top pressing seat 30 from the first side 11 or the second side 12. After that, the nut on the screw is tightened. During the tightening process, the screw is displaced along the axial direction of itself to press the top pressing seat 30, so that the top pressing seat 30 is stressed and transmits the pressure to the pressing part. After that, the force is uniformly transmitted to the pressing piece 22, the locking piece 23 and the connecting seat 21, so that they are pressed layer by layer to achieve locking.

[0045] Of course, after the top pressing seat 30 is covered or clamped outside the connecting mechanism 20 and the support body 10, the screw or the bolt can also penetrate the connecting mechanism 20, the support body 10 and the top pressing seat 30, and the nuts are arranged at both ends of the screw. Similarly, the outside of the top pressing seat 30 can be pressed during the tightening of the nut, so that the top pressing seat 30 is stressed and pressed on the pressing piece 22 and the locking piece 23 to achieve layer-by-layer pressing.

[0046] In addition, the pressing piece 22 and the locking piece 23 in the embodiment can be made of a sheet structure of high-strength and wear-resistant metal material or plastic (such as stainless steel, alloy steel or polyamide (PA) and the like). The number of the pressing piece 22 can be set to three, four, five or more according to the weight of the lamp body, and the number of the locking piece 23 is set to two, three or more according to the number of the pressing piece 22. The effective friction area of the connecting seat 21 and the support body 10 support is increased by increasing the number of the pressing piece 22 and the locking piece 23, and the locking force of the entire structure is improved.

[0047] Further, the top pressing seat 30 in the embodiment has a penetrating cavity 311 and a bayonet 313. The penetrating cavity 311 has an opening 314 towards the first side 11. At this time, the end wall of the opening 314 is formed as a pressing part and abuts against one of the pressing pieces 22 close to the top pressing seat 30, so that the top pressing seat 30 is pressed on the pressing piece 22 after being stressed. The support body 10 is arranged in the penetrating cavity 311 through the bayonet 313.

[0048] Specifically, the bracket body 10 is arranged in the through cavity 311 through the aperture 313, and is connected by a connecting member (screw or bolt, etc.), so that the connection between the pressing seat 30 and the bracket body 10 is more compact and stable, and the stability of the whole structure is increased. When force is applied, the pressing seat 30, the bracket body 10, and the pressing piece 22 and other components connected therewith can work cooperatively to bear the external force, thereby improving the anti-deformation and load-bearing capacity of the structure, and enabling the whole mechanism to better adapt to different working conditions and stress environments, and not prone to loosening or damage due to external force.

[0049] After the at least two pressing pieces 22 and the at least one locking piece 23 are arranged in overlapping manner, the pressing pieces 22 are inserted into the through cavity 311 through the aperture 314, and are fixed by a connecting member (screw or bolt, etc.). One of the pressing pieces 22 is connected to the connecting seat 21 and the end wall of the aperture 314. Since the end wall of the aperture 314 serves as the pressing part and is connected to the pressing piece 22, when the pressing part is pressed, the pressure is concentrated on the edge area of the pressing piece 22. In the case of a small force bearing area, the same force will generate a greater pressure, that is, the smaller the force bearing area, the greater the pressure per unit area, thereby generating a greater pressure on the periphery, which can more effectively press the pressing piece 22, thereby increasing the locking force.

[0050] Compared with the case where the entire end surface of the pressing seat 30 is in contact with the entire pressing piece 22, the force is uniformly distributed on the entire contact surface, the force bearing area is large, and although the overall pressure may be the same, the pressure per unit area is relatively small, which means that the effective force for pressing the pressing pieces 22 against each other at each point is relatively weak. In order to achieve the same locking effect, a greater overall pressure may be required, and therefore the end wall of the aperture 314 serves as the pressing part and is connected to the pressing piece 22 and abuts against it. Under the same external force, the locking force of the whole structure is also stronger.

[0051] It should be noted that the end wall of the aperture and the peripheral portion of the pressing piece 22 in the present embodiment are in full circumferential contact. In this way, the end wall of the aperture and the peripheral portion of the pressing piece 22 are in contact with each other throughout the entire profile range, thereby increasing the force bearing area and enabling the force applied to the pressing piece 22 by the pressing part to be more uniformly distributed in the circumferential direction of the pressing piece, thereby avoiding the problem of excessive local pressure causing damage to the pressing piece 22.

[0052] Further, after the bracket body 10 is arranged in the through cavity 311, the at least two pressing pieces 22 are inserted into the through cavity 311 through the aperture 314. The through cavity 311 is provided with a pressing ring 312 which serves as the pressing part and abuts against the pressing piece 22 close to the bracket body 10.

[0053] Specifically, during assembly, one of the pressing pieces 22 extends into the through cavity 311 through the opening 314, and the pressing piece 22 is abutted against the end wall of the pressing ring 312. The contact area between the pressing ring 312 and the pressing piece 22 is relatively small and regular in shape, so that the force applied by the pressing seat 30 can be more concentratedly transmitted to the pressing piece 22. In contrast, the end wall of the opening 314 has a large area, which may result in insufficient concentration of the force and uneven transmission of the force. However, the pressing ring 312 can make the force more uniformly act on the edge of the pressing piece 22, so that the pressure distribution between the pressing piece 22 and other components is more uniform, and the stability and reliability of the entire connecting structure are improved.

[0054] It should be noted that the pressing ring 312 in the embodiment can be a protruding ring structure integrally formed inside the through cavity 311. Similarly, the end face of the pressing ring 33 is completely attached to the circumferential surface of the pressing piece 22, so that the force applied by the pressing ring 33 to the pressing piece 22 can be more uniformly distributed in the circumferential direction of the pressing piece 22, avoiding the problem of excessive local pressure that may cause damage to the pressing piece 22.

[0055] More specifically, the at least two pressing pieces 22 are further provided with first through holes 221, and the pressing seat 30 is provided with second through holes 315. The second through holes 315 are located in the through cavity 311 and correspondingly arranged with the first through holes 221. The first through holes 221 and the second through holes 315 are used to pass through a connecting piece to fasten the pressing pieces 22 and the pressing seat 30 in the axial direction, so as to prevent them from relatively moving in the axial direction. The connecting seat 21, the locking piece 23 and the pressing piece 22 originally provide a certain fastening force in the radial direction through layer-by-layer pressing. Thus, by means of the connecting piece, the stability of the entire structure is enhanced in both the axial and radial directions, the connection is more firm, and the structure can withstand greater external force and complex mechanical action without being easily loosened or detached.

[0056] It should be noted that the connecting piece in the embodiment can be selected from existing screws or bolts.

[0057] Further, the pressing mechanism further includes a locking rod 32. The locking rod 32 passes through the connecting mechanism 20 and the support body 10, and is rotatably arranged in the pressing seat 30. When the locking rod 32 rotates, the locking rod 32 drives the pressing seat 30 to press the pressing piece 22.

[0058] Specifically, when assembling, the rotating locking rod 32 is inserted into the locking rod 32, and the other end of the support body 10 is connected with the connecting mechanism 20. At this time, the locking rod 32 can be used as a “pivot” to rotate the connecting mechanism 20 and the support body 10, so that the connecting seat 21 can also rotate relative to the support body 10 through the locking rod 32, thereby realizing the effect that the lamp body angle can be adjusted. The specific locking rod 32 can be formed by using an existing threaded rod or a bolt, and a threaded hole is correspondingly arranged in the top pressing seat 30, the connecting mechanism 20 or the support body 10, so that the locking rod 32 is screwed with the threaded hole. In this way, when it is necessary to lock the lamp body and the connecting seat 21, only a slight external force needs to be applied to the locking rod 32, and by using the screw transmission principle, the rotating locking rod 32 will produce axial displacement. Since one end of the locking rod 32 passes through the connecting mechanism 20 and the support body 10 and is relatively fixed, this axial displacement will be converted into the axial movement of the top pressing seat 30 along the locking rod 32, so that the top pressing seat 30 approaches the pressing piece 22 and exerts pressure on it.

[0059] Of course, nuts can also be arranged at both ends of the locking rod 32, and the nuts are tightened to force the locking rod 32 to move along the axial direction of itself to layer by layer press the contacting components such as the pressing piece 22 and the locking piece 23.

[0060] Compared with other ways of applying external force, it is easier to control the force and direction, and the operator can accurately control the pressing force of the top pressing seat 30 on the pressing piece 22 by slowly or quickly rotating the locking rod 32 according to actual needs, to ensure that the ideal locking effect is achieved.

[0061] More specifically, as the support body 10 is used for a long time or the load on the support body 10 increases, the connection part may be loose due to vibration and other reasons. At this time, the operator only needs to rotate the locking rod 32 again to further drive the top pressing seat 30 to press the pressing piece 22, so as to compensate for the gap caused by loosening in time, always keep the connecting mechanism 20 in a tight state, and ensure the stability of the connection in the long-term use process. It is better to adapt to different working conditions and stress environment, and is not easy to loosen or damage due to external force.

[0062] Further, a holding mechanism is also included, which includes a handle 40. The locking rod 32 has a first end 321 and a second end 322. The first end 321 is located at the first side 11 and connected with the connecting seat 21. The second end 322 passes through the connecting mechanism 20, the support body 10 and the top pressing seat 30 and is connected with the handle 40. The handle 40 drives the locking rod 32 to rotate when subjected to force, and presses the top pressing seat 30 when the locking rod 32 rotates.

[0063] Specifically, since the second end 322 of the locking rod 32 is connected with the handle 40 through the connecting mechanism 20, the support body 10 and the pressing seat 30, the handle 40 provides an easy-to-grasp and force-exerting part for the operator, so that the operator can conveniently operate the whole mechanism by hand force, easily rotate the locking rod 32 to control the pressing seat 30, and is more labor-saving and efficient than directly operating other parts of the locking rod 32.

[0064] When it is needed to lock the whole mechanism, an external force can be applied to the handle 40. When the handle 40 is subjected to the external force, the handle 40 directly transmits the torsion to the second end 322 of the locking rod 32, so that the locking rod 32 rotates around its axis. The rotation of the locking rod 32 forces the axial movement of the pressing seat 30, and the handle 40 also moves to press the pressing seat 30, so that the pressing seat 30 tightly presses the pressing sheet 22 and the locking sheet 23, thereby improving the locking force of the whole structure.

[0065] It should be noted that, during assembly, a threaded structure can be arranged on the second end 322, and a matching threaded groove can be arranged in the handle 40 at the same time, so that the second end 322 and the handle 40 are threadedly connected. In this way, when the handle 40 is rotated and tightened, the handle 40 can be threadedly driven with the second end 322 to break the displacement of the pressing seat 30, so as to press the whole connecting mechanism 20.

[0066] More specifically, the holding mechanism further comprises a gasket 41 located between the pressing seat 30 and the handle 40. The gasket 41 can fill the gap between the pressing seat 30 and the handle 40 due to manufacturing or assembly errors, so that the contact area of the gasket 41 with the pressing seat 30 and the handle 40 is relatively large, and the pressure can be more evenly distributed on the contact surface, avoiding excessive local stress on the pressing seat 30, thereby improving the stress stability and reliability of the pressing seat 30, so that it can more evenly exert pressure on the pressing sheet 22 and other components, and ensure the performance stability of the whole mechanism.

[0067] In addition, by arranging the gasket between the handle 40 and the pressing seat 30, the contact area between the handle 40 and the pressing seat 30 is indirectly increased, and the friction therebetween is indirectly improved. The larger contact area and friction can effectively reduce the possibility of relative sliding or loosening between the handle and the pressing seat, so that the connection is more compact and stable.

[0068] It should be noted that the gasket 41 can be made of a sheet structure of high-strength and wear-resistant materials such as stainless steel or alloy steel.

[0069] Further, the connecting seat 21 comprises a connecting block 212 and a connecting ring 211 protruding from the periphery of the connecting block 212 and used for abutting against the pressing sheet 22 or the locking sheet 23 when the connecting seat 21 is subjected to pressure, and the connecting block 212 is connected with the lamp body.

[0070] Specifically, during assembly, a connecting ring 211 is provided around the connecting block 212 to increase the overall structural strength and rigidity of the connecting seat 21. When the connecting seat 21 is subjected to external force, the connecting ring 211 can effectively share and transmit the force, reduce the stress borne by the connecting block 212, thereby reducing the possibility of deformation or damage to the connecting block 212 and improving the service life and reliability of the entire connecting seat 21.

[0071] During assembly, the connecting block 212 connects to the lamp body, providing the main connection support point for the lamp body. The connecting ring 211 protrudes from the periphery of the connecting block 212. When the connecting seat 21 is pressed, the connecting ring 211 can abut against the clamping plate 22 or the locking plate 23, forming multi-part contact and support. This multi-part connection method can better distribute pressure and tension compared to a single connection point, making the connection between the lamp body and other components more stable and reliable, and effectively preventing the lamp body from loosening, shaking, or even falling off during use.

[0072] Furthermore, a top pressure plate 323 is provided on the first end 321. The top pressure plate 323 is located on the first side 11. A third through hole 213 is provided on the connecting block 212. The third through hole 213 is used to pass through the locking rod 32. After the locking rod 32 passes through the third through hole 213, the top pressure plate 323 abuts against the end wall of the third through hole 213 and presses against the connecting seat 21 when the locking rod 32 rotates.

[0073] Based on this structure, since the top pressure plate 323 located at the first end 321 abuts against the end wall of the third through hole 213 after the locking rod 32 passes through the third through hole 213, when the handle 40 at the second end 322 of the locking rod 32 rotates, the handle 40 will first apply pressure to the top pressure seat 30, forcing the top pressure seat 30 to press the connecting mechanism 20 and the support body 10, etc., and apply a top pressure to the entire mechanism. At the same time, the top pressure plate 323 located at the first end 321 will also generate a top pressure on the connecting seat 21, which is equivalent to adding an extra fastening force between the connecting seat 21 and related components, making the connection between the connecting seat 21 and other components tighter and less prone to loosening. This allows the connecting mechanism 20 and the support body 10 to be pressed tightly by the top pressure plate 323 and the top pressure seat 30 on both sides at the same time, which can effectively prevent the connection from loosening or falling off due to factors such as vibration and external pulling, and further improve the stability and reliability of the entire structure.

[0074] Furthermore, the connecting seat 21 is provided with a limiting block 214, and the locking piece 23 is provided with a first limiting hole 231. The first limiting hole 231 is correspondingly provided with the limiting block 214 and is used to pass through the limiting block 214.

[0075] Specifically, after the limiting block 214 is inserted into the first limiting hole 231, the relative movement between the connecting seat 21 and the locking piece 23 can be limited to a certain extent to prevent displacement and rotation therebetween, so that they maintain a relatively fixed positional relationship during operation, thereby enhancing the stability and reliability of the entire structure and improving the ability of the structure to resist external forces and vibrations.

[0076] More specifically, the limiting block 214 is square-shaped and the first limiting hole 231 is a square-shaped hole. Due to the square-shaped feature, the limiting block 214 can limit the rotation of the components in four directions after being inserted into the square-shaped hole. In this way, when subjected to complex external forces, the square-shaped hole can better resist forces and torques in various directions to prevent relative displacement and rotation between the connecting seat 21 and the locking piece 23. In contrast, when facing external forces such as torques, components between circular holes are more likely to rotate or slide relative to each other, resulting in unstable connection.

[0077] Further, the connecting mechanism 20 further comprises a locking disc 24, which is provided with a second limiting hole corresponding to the first limiting hole 231, and the limiting block 214 passes through the first limiting hole 231 and is arranged in the second limiting hole.

[0078] Specifically, the locking disc 24 can be arranged between one of the pressing pieces 22 close to the support body 10 and the support body 10. During assembly, the locking disc 24 is first connected with the support body 10 and the pressing seat 30, and then the limiting block 214 on the connecting block 212 passes through the first limiting hole 231 and the second limiting hole in sequence, effectively connecting the connecting seat 21, the locking piece 23 and the locking disc 24 together to form a more stable overall structure, providing additional locking force for the connecting mechanism 20. When the pressing seat 30 is pressed, the multiple pressing pieces 22, the locking piece 23 and the locking disc 24 are combined and stacked to form more friction surfaces in contact with each other, and friction can be effectively generated on each friction surface. The friction forces are superimposed on each other, and the total friction force is greater, making the locking force of the entire structure stronger.

[0079] It should be noted that the locking disc 24 can also be made of a metal block or a plastic block with high strength and wear resistance, such as a block-shaped structure made of stainless steel, alloy steel, polyamide (PA) or polyoxymethylene (POM).

[0080] More specifically, the locking disc 24 and the adjacent pressing piece 22 are further provided with a locking piece 23. The addition of the new locking piece 23 provides two new friction surfaces, i.e. the contact surface between the locking piece 23 and the locking disc 24 and the contact surface between the locking piece 23 and the pressing piece 22, on the basis of the original locking disc 24 and the pressing piece 22, so that more friction surfaces are formed between the connecting seat 21 and the support body 10. Thus, under the same pressure condition, the total friction force increases, so as to further improve the locking force of the connecting mechanism 20.

[0081] Embodiment 2,

[0082] Referring to Figures 1 to 5 A video and television lamp, comprising a lamp body and the video and television lamp support in Embodiment 1.

[0083] In specific use, the lamp body is connected with the connecting seat 21, and the connecting mechanism 20 is rotatably connected with the support body 10 through the locking rod 32, so that after the lamp body is assembled with the connecting seat 21 in the connecting mechanism 20, the lamp body can rotate with the connecting seat 21 to facilitate adjustment of the angle of the lamp body to meet different shooting requirements.

[0084] When it is necessary to fix the lamp body, an external force is applied to the top pressing seat 30. Since the top pressing part on the top pressing seat 30 extends into the first side 11 and is connected with the pressing piece 22 after being connected with the support body 10, at least two pressing pieces 22 can be locked by the top pressing seat 30, and each pressing piece 22 is provided with a locking piece 23. When the top pressing seat 30 is subjected to a force, the force is transmitted from the top pressing seat 30 to the top pressing part, the top pressing part directly contacts the pressing piece 22 and applies the force to the pressing piece 22. The pressing piece 22 transmits the force to the adjacent locking piece 23 and the next pressing piece 22 in turn. Thus, a continuous force transmission path is formed, so that each component can be subjected to a pressure, and layer-by-layer pressing is realized. Each pressing piece 22 and locking piece 23 is limited by the adjacent components. The mutual restraint force prevents relative movement between them, so as to make the whole structure more stable and less likely to loosen. Thus, the connecting seat 21 and the lamp body can be locked, and the rotational movement of the connecting seat 21 and the lamp body connected therewith is limited, so as to balance flexibility and stability.

[0085] Specifically, when the weight of the lamp body connected with the connecting seat 21 increases, the operator only needs to increase the force applied to the top pressing seat 30, at this time, the top pressing seat 30 transmits greater force to the pressing piece 22 through the top pressing part, and since one locking piece 23 is arranged between every two adjacent pressing pieces 22, the force is sequentially transmitted between the pressing piece 22 and the locking piece 23, so that the normal pressure between them is continuously superimposed, and the transmission and superimposition effect of the force can significantly increase the normal pressure between the pressing piece 22 and the locking piece 23 and the parts in contact with each other of the connecting seat 21, and the friction force increases accordingly when the friction coefficient is unchanged, and the connecting seat 21 needs to overcome the friction force to rotate, thereby better preventing the rotation of the connecting seat 21, providing sufficient resistance for the heavier lamp body, preventing it from shaking due to the torque generated by gravity, so that the lamp body of different loads can be firmly locked on the support main body 10, so that the support main body 10 can be applicable to lamp bodies of different loads and has a wide range of applications.

[0086] More specifically, when the plurality of pressing pieces 22 and locking pieces 23 are pressed layer by layer, the plurality of pressing pieces 22 and locking pieces 23 form a plurality of friction surfaces in contact with each other, and the friction force can be effectively generated on each friction surface, and the total friction force is superimposed, so that the total friction force is greater, and the locking force of the entire structure is stronger, so that it can be applicable to the lamp body with heavier load; compared with the single-layer disc brake, the disc brake mainly relies on the single-face contact between the disc brake piece and the disc to generate the friction force, and the effective contact area of the end-face friction locking mode is also usually limited to two opposite planes, and the contact area is relatively small, and the generated friction force and the locking force are also relatively small.

[0087] At the same time, the layer-by-layer pressing structure of the plurality of pressing pieces 22 and locking pieces 23 has a certain redundancy, that is, even if a certain pressing piece 22 or locking piece 23 has a problem, the stability of the connection and the locking force can still be ensured to a certain extent by other components, and the reliability of the entire system is improved.

[0088] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A movie light stand, characterized in that, The application relates to a lamp holder, which comprises: a holder body (10) having a first side (11) and a second side (12) arranged oppositely; a connecting mechanism (20) arranged on the first side (11) and rotatably connected with the holder body (10); the connecting mechanism (20) comprises a connecting seat (21), locking pieces (23) and at least two pressing pieces (22), one locking piece (23) is arranged between every two adjacent pressing pieces (22), the connecting seat (21) is connected with one of the locking pieces (23) close to the holder body (10) and is used for being connected with a lamp body; a pressing mechanism, which comprises a pressing seat (30) arranged on the second side (12) and connected with the holder body (10), the pressing seat (30) has a pressing part used for extending into the first side (11) and being connected with the pressing pieces (22) after the pressing seat (30) is connected with the holder body (10), the pressing part is used for pressing the pressing pieces (22) after the pressing seat (30) is forced, so that at least two pressing pieces (22) and at least one locking piece (23) are pressed layer by layer to limit the rotating movement of the connecting seat (21).

2. The movie lighting stand of claim 1, wherein, The pressing seat (30) has a penetrating cavity (311) and a bayonet (313), the penetrating cavity (311) has an opening (314) facing the first side (11), the end wall of the opening (314) is formed into the pressing part and abuts against one of the pressing pieces (22) close to the pressing seat (30) to enable the pressing part to press the pressing pieces (22) after the pressing seat (30) is forced; the holder body (10) is arranged in the penetrating cavity (311) through the bayonet (313).

3. The movie lighting stand of claim 2, wherein, At least two pressing pieces (22) are used for extending into the penetrating cavity (311) through the opening (314) after the holder body (10) is arranged in the penetrating cavity (311); the penetrating cavity (311) is provided with a pressing ring (312), the pressing ring (312) is formed into the pressing part and abuts against one of the pressing pieces (22) close to the holder body (10).

4. The movie lighting stand of claim 3, wherein, At least two pressing pieces (22) are further provided with first penetrating holes (221), the pressing seat (30) is provided with second penetrating holes (315), the second penetrating holes (315) are arranged in the penetrating cavity (311) and correspond to the first penetrating holes (221), the first penetrating holes (221) and the second penetrating holes (315) are used for penetrating a connecting piece.

5. The fixture of claim 1, wherein: The pressing mechanism further comprises a locking rod (32), the locking rod (32) penetrates the connecting mechanism (20) and the holder body (10) and is rotatably arranged in the pressing seat (30), the locking rod (32) is used for driving the pressing seat (30) to press the pressing pieces (22) during rotation.

6. The fixture of claim 5, wherein: Further comprising a holding mechanism, the holding mechanism comprising a handle (40), the locking rod (32) having a first end (321) and a second end (322), the first end (321) being located at the first side (11) and connected with the connecting seat (21), the second end (322) penetrating through the connecting mechanism (20), the support body (10) and the pressing seat (30) and being connected with the handle (40), the handle (40) being used for driving the locking rod (32) to rotate when being forced and being used for pressing the pressing seat (30) when the locking rod (32) rotates.

7. The fixture of claim 6, wherein the first and second arms are substantially parallel to each other. The holding mechanism further comprises a gasket (41) located between the pressing seat (30) and the handle (40) and used for pressing the pressing seat (30) when being forced.

8. The fixture of claim 6, wherein: The connecting seat (21) comprises a connecting block (212) and a connecting ring (211), the connecting ring (211) being protruded from the periphery of the connecting block (212) and being used for abutting against the pressing sheet (22) or the locking sheet (23) when the connecting seat (21) is forced; the connecting block (212) being used for connecting with the lamp body.

9. The fixture of claim 8, wherein the fixture is configured to be mounted to a wall. The first end (321) is provided with a pressing plate (323), the pressing plate (323) being located at the first side (11), the connecting block (212) is provided with a third penetrating hole (213), the third penetrating hole (213) being used for penetrating the locking rod (32), the pressing plate (323) being used for abutting against the end wall of the third penetrating hole (213) after the locking rod (32) penetrates through the third penetrating hole (213) and being used for pressing the connecting seat (21) when the locking rod (32) rotates.

10. The fixture of claim 9, wherein the fixture is configured to be mounted to a wall. The connecting seat (21) is provided with a limiting block (214), the locking sheet (23) is provided with a first limiting hole (231), the first limiting hole (231) being correspondingly arranged with the limiting block (214) and being used for penetrating the limiting block (214).

11. The fixture of claim 10, wherein: The limiting block (214) is square, and the first limiting hole (231) is a square hole.

12. The fixture of claim 10, wherein: The connecting mechanism (20) further comprises a locking disc (24), the locking disc (24) being provided with a second limiting hole, the second limiting hole being correspondingly arranged with the first limiting hole (231), the limiting block (214) penetrating through the first limiting hole (231) and being arranged in the second limiting hole.

13. The fixture of claim 12, wherein The locking disc (24) and the adjacent pressing sheet (22) are further provided with one locking sheet (23).

14. A movie and television lamp, comprising a lamp body and the movie and television lamp support according to any one of claims 1-13.

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