Focus point movement adjustment device

Abstract

The present invention discloses a focus point movement and adjustment device, comprising a device shell, an adjustment component and a first electric drive component. The device shell is used to be installed on a shooting device, the adjustment component is arranged on the device shell, the adjustment component comprises a dial block with an active stroke in the up-down direction and the left-right direction, the dial block is used to be fixed with a focus point adjustment lever of the shooting device, the first electric drive component is arranged on the device shell, and is used to drive the dial block to move. Because the dial block is fixed with the focus point adjustment lever of the shooting device, the focus point adjustment lever of the shooting device moves with the dial block, and the dial block is driven to move by the first electric drive component arranged on the device shell, so that the focus point adjustment lever has an active stroke in the up-down direction and the left-right direction, thereby solving the problem of focus point movement and adjustment of the shooting device when the shooting device is shooting through a remote control system.

Description

Technical Field

[0001] The invention relates to the technical field of photography, and in particular to a focus point moving adjustment device. Background Art

[0002] Due to the limitations of the shooting environment, the photographer needs to use the remote control system to observe the state of the object being photographed in real time and adjust the focus point position in the viewfinder of the shooting device to achieve the best shooting effect. However, since some shooting devices do not have the control authority to move the focus point, the remote system cannot use software to move and adjust the focus point of the shooting device in real time. Moreover, since the shooting is done through the remote control system, the photographer cannot move the focus point in real time, resulting in the shooting not achieving the best shooting effect. Summary of the invention

[0003] The main purpose of the present invention is to provide a focus point moving adjustment device, which aims to solve the problem that when the existing shooting device is shooting through a remote control system, the focus point movement adjustment of the shooting device cannot be remotely controlled.

[0004] To achieve the above-mentioned purpose, the focus point moving adjustment device proposed in the present invention comprises:

[0005] A device housing, used for being mounted on a photographing device;

[0006] An adjustment component is disposed on the device housing, the adjustment component includes a shift block with a movable travel in the up-down direction and the left-right direction, the shift block is used to be fixed to the focus adjustment lever of the shooting device; and

[0007] The first electric drive component is arranged in the device housing and is used to drive the shift block to move.

[0008] Optionally, the adjustment component is disposed in the device housing, and the adjustment component includes a shift block mounting member, and the shift block mounting member is movably mounted on the device housing in a left-right direction;

[0009] The shift block is movably mounted on the shift block mounting piece in an up-and-down direction.

[0010] Optionally, the first electric drive component includes:

[0011] A first motor drive assembly, disposed in the device housing, for driving the shift block mounting member to move; and

[0012] The second motor driving component is arranged on the shift block mounting part and is used for driving the shift block to move.

[0013] Optionally, a first threaded mounting hole is formed at the lower end of the shift block mounting piece in the left-right direction, the first motor drive assembly includes a first drive motor, a first drive screw and a first anti-rotation structure, the first drive motor is arranged in the device housing, the first drive motor has a first output shaft extending in the left-right direction, the first drive screw is extended in the left-right direction, the first drive screw is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw is threadedly mounted in the first threaded mounting hole, and the first anti-rotation structure is arranged between the shift block mounting piece and the device housing; and / or,

[0014] The shift block mounting piece forms an accommodation space, the shift block is placed in the accommodation space, a second threaded mounting hole is penetrated in the up-down direction on the right side of the shift block, the second motor drive assembly includes a second drive motor, a second drive screw and a second anti-rotation structure, the second drive motor is arranged in the accommodation space, the second drive motor has a second output shaft extending in the up-down direction, the second drive screw is extended in the up-down direction, the second drive screw is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw is threadedly installed in the second threaded mounting hole, and the second anti-rotation structure is arranged in the accommodation space and is located between the shift block and the shift block mounting piece.

[0015] Optionally, the shift block mounting piece is provided with a third threaded mounting hole along the left-right direction, the first motor drive assembly includes a first drive motor, a first drive screw, and a first anti-rotation structure, the first drive motor is arranged in the device housing, the first drive motor has a first output shaft extending along the left-right direction, the first drive screw is extended along the left-right direction, the first drive screw is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw is threadedly mounted on the third threaded mounting hole, and the first anti-rotation structure is arranged between the shift block mounting piece and the device housing; and / or,

[0016] The shift block mounting piece is formed with a mounting groove extending in the left and right directions, the shift block is placed in the mounting groove, the shift block is penetrated by a fourth threaded mounting hole in the up and down directions, the second motor drive assembly includes a second drive motor, a second drive screw and a second anti-rotation structure, the second drive motor is mounted on the shift block mounting piece, the second drive motor has a second output shaft extending in the up and down directions, the second drive screw is extended in the up and down directions, the second drive screw is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw is threadedly mounted in the fourth threaded mounting hole, and the second anti-rotation structure is arranged in the mounting groove and is located between the shift block and the shift block mounting piece.

[0017] Optionally, the shift block mounting member is provided with a first through hole along the left-right direction;

[0018] The first anti-rotation structure includes a first guide rod extending in the left-right direction, and the first guide rod is sleeved in the first through hole.

[0019] Optionally, the shift block is provided with a second through hole in the up-down direction;

[0020] The second anti-rotation structure includes a second guide rod extending in an up-down direction, and the second guide rod is sleeved in the second through hole.

[0021] Optionally, an operating component is also included, which includes a pressure block and a linear drive device. The pressure block has a forward and backward movable stroke and is used to press the focus point selection button of the shooting device. The fixed end of the linear drive device is arranged on the device housing, and the driving end is arranged on the pressure block to drive the pressure block to move.

[0022] Optionally, a shell fixing structure is also included, which is used to fix the device shell to the shooting device.

[0023] Optionally, the shell fixing structure includes a base plate, a mounting plate, a connecting stud and a first locking assembly, the base plate is extended in the front-to-back direction, the front end upper surface of the base plate is used to install the device shell, the mounting plate is extended in the left-right direction, and is movably installed on the base plate in the front-to-back direction, the connecting stud is arranged on the right upper surface of the mounting plate, and is used to be threadedly connected with the mounting hole provided on the shooting device, the first locking assembly includes a first locking rod with a left-to-right movable stroke, the first locking rod passes through the side surface of the mounting plate and the head end surface of the first locking rod is used to be pressed against the side surface of the base plate; and / or,

[0024] The shell fixing structure includes a hanging rack, which is used to be arranged between the device shell and the shooting device, and is used to hang the device shell on the shooting device.

[0025] In the technical solution provided by the present invention, because the shift block is fixed to the focus point adjustment lever of the shooting device, the focus point adjustment lever of the shooting device moves with the shift block, and the shift block is driven to move by the first electric drive component arranged on the device housing, so that the focus point adjustment lever has an active stroke in the up and down directions and the left and right directions, thereby solving the problem of moving and adjusting the focus point of the shooting device when the shooting device is shot through a remote control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of an embodiment of a focus point movement adjustment device provided by the present invention;

[0028] Figure 2 for Figure 1 A rear view schematic diagram of a center focus point moving adjustment device;

[0029] Figure 3 A schematic structural diagram of another embodiment of the focusing point movement adjustment device provided by the present invention;

[0030] Figure 4 for Figure 3 A rear view schematic diagram of a center focus point moving adjustment device;

[0031] Figure 5 for Figure 3 A schematic structural diagram of a first embodiment in which a central focus point moving adjustment device is installed on a housing fixing device;

[0032] Figure 6 for Figure 5 A schematic diagram of the structure of the middle housing fixing device installed on the shooting device;

[0033] Figure 7 It is a structural schematic diagram of a second embodiment in which a housing fixing device is installed on a photographing device;

[0034] Figure 8 It is a structural schematic diagram of a third embodiment in which a housing fixing device is installed on a photographing device.

[0035] Description of Figure Numbers:

[0036]

[0037]

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] Due to the limitations of the shooting environment, the photographer needs to use the remote control system to observe the state of the object being photographed in real time and adjust the focus point position in the viewfinder of the shooting device to achieve the best shooting effect. However, since some shooting devices do not have the control authority to move the focus point, the remote system cannot use software to move and adjust the focus point of the shooting device in real time. Moreover, since the shooting is done through the remote control system, the photographer cannot move the focus point in real time, resulting in the shooting not achieving the best shooting effect.

[0043] The main purpose of the present invention is to provide a focus point moving adjustment device, which aims to solve the problem that when the existing shooting device is shooting through a remote control system, the focus point movement adjustment of the shooting device cannot be remotely controlled. Figures 1 to 4 Schematic diagrams of two embodiments of the focus point movement adjustment device.

[0044] See also Figure 1 and Figure 3The focus point moving adjustment device 100 includes a device housing 1, an adjustment component 2 and a first electric drive component. The device housing 1 is used to be installed on the shooting device 1000. The adjustment component 2 is arranged on the device housing 1. The adjustment component 2 includes a shift block 21 with an active stroke in the up and down directions and the left and right directions. The shift block 21 is used to be fixed to the focus point adjustment lever of the shooting device 1000. The first electric drive component is arranged on the device housing 1 to drive the shift block 21 to move.

[0045] In the technical solution provided by the present invention, because the shift block 21 is fixed to the focus adjustment lever of the shooting device 1000, the focus adjustment lever of the shooting device 1000 moves with the shift block 21, and the first electric drive component arranged in the device housing 1 drives the shift block 21 to move, so that the focus adjustment lever has an active stroke in the up and down directions and the left and right directions, thereby solving the problem of focusing point movement and adjustment of the shooting device 1000 when the shooting device 1000 is shooting through a remote control system.

[0046] There are many ways to realize that the shift block 21 has an active stroke in the up-down direction and the left-right direction. Specifically, in the technical solution provided by the present invention, the adjustment component 2 is arranged in the device housing 1, and the adjustment component 2 includes a shift block mounting member 22, and the shift block mounting member 22 is movably mounted on the device housing 1 along the left-right direction, and the shift block 21 is movably mounted on the shift block mounting member 22 along the up-down direction, so that the shift block 21 can move in the up-down direction and the left-right direction. Such a configuration has a simple structure and is easy to operate.

[0047] Furthermore, in order to drive the shift block 21 to move in the up-down direction and the left-right direction, the first electric drive assembly includes a first motor drive assembly 3 and a second motor drive assembly 4. The first motor drive assembly 3 is arranged on the device housing 1 to drive the shift block mounting member 22 to move. The second motor drive assembly 4 is arranged on the shift block mounting member 22 to drive the shift block 21 to move, thereby realizing that the shift block 21 can move in the up-down direction and the left-right direction. Such an arrangement is easy to control and simple to operate.

[0048] Specifically, refer to Figure 1 to Figure 2In this embodiment, the lower end of the shift block mounting member 22 is provided with a first threaded mounting hole 221 in the left-right direction, the first motor drive assembly 3 includes a first drive motor 31, a first drive screw 32 and a first anti-rotation structure 33, the first drive motor 31 is provided in the device housing 1, the first drive motor 31 has a first output shaft extending in the left-right direction, the first drive screw 32 is provided to extend in the left-right direction, the first drive screw 32 is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw 32 is threadedly mounted in the first threaded mounting hole 221, and the first anti-rotation structure 33 is provided between the shift block mounting member 22 and the device housing 1. In the above implementation, the first drive screw 32 is driven to rotate by the first drive motor 31, because the first drive screw 32 is threadedly mounted in the first threaded mounting hole 221, and the first anti-rotation structure 33 is provided between the shift block mounting member 22 and the device housing 1, so that the shift block mounting member 22 moves in the left-right direction without rotating.

[0049] In order to realize the upward and downward movement of the shift block 21, specifically, in the present embodiment, the shift block mounting member 22 forms an accommodation space, the shift block 21 is arranged in the accommodation space, and a second threaded mounting hole 211 is penetrated through the right side of the shift block 21 in the upward and downward directions, the second motor drive assembly 4 comprises a second drive motor 41, a second drive screw 42 and a second anti-rotation structure 43, the second drive motor 41 is arranged in the accommodation space, the second drive motor 41 has a second output shaft extending in the upward and downward directions, the second drive screw 42 is extended in the upward and downward directions, the second drive screw 42 is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw 42 is threadedly installed in the second threaded mounting hole 211, the second anti-rotation structure 43 is arranged in the accommodation space, and is located between the shift block 21 and the shift block mounting member 22. In the above implementation, the second drive screw 42 is driven to rotate by the second drive motor 41, the second drive screw 42 is threadedly installed in the second threaded mounting hole 211, and the second anti-rotation structure 43 is arranged in the placement space and is located between the shift block 21 and the shift block mounting member 22, thereby realizing that the shift block 21 moves in the up and down directions without rotating.

[0050] It should be noted that the above-mentioned actions of moving the shift block mounting member 22 in the left-right direction without rotating and moving the shift block 21 in the up-down direction without rotating can be performed simultaneously or one by one. The effects are the same as above and will not be described in detail here.

[0051] Specifically, refer to Figure 3 to Figure 4In the present embodiment, the shift block mounting member 22 is provided with a third threaded mounting hole along the left-right direction, the first motor drive assembly 3 comprises a first drive motor 31, a first drive screw 32 and a first stop structure 33, the first drive motor 31 is arranged in the device housing 1, the first drive motor 31 has a first output shaft extending along the left-right direction, the first drive screw 32 is extended along the left-right direction, the first drive screw 32 is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw 32 is threadedly mounted in the third threaded mounting hole, the first stop structure 33 is arranged between the shift block mounting member 22 and the device housing 1, in the above implementation mode, the first drive screw 32 is driven to rotate by the first drive motor 31, because the first drive screw 32 is threadedly mounted in the third threaded mounting hole, and the first stop structure 33 is arranged between the shift block mounting member 22 and the device housing 1, so that the shift block mounting member 22 moves along the left-right direction without rotating.

[0052] In order to realize the up and down movement of the shift block 2121, specifically, in the present embodiment, the shift block mounting member 22 is formed with a mounting groove a extending in the left and right directions, the shift block 21 is placed in the mounting groove a, the shift block 21 is penetrated by a fourth threaded mounting hole in the up and down directions, the second motor drive assembly 4 comprises a second drive motor 41, a second drive screw 42 and a second stop structure 43, the second drive motor 41 is mounted on the shift block mounting member 22, the second drive motor 41 has a second output shaft extending in the up and down directions, the second drive screw 42 is extended in the up and down directions, the second drive screw 42 is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw 42 is threadedly mounted in the fourth threaded mounting hole, the second stop structure 43 is arranged in the mounting groove a, and is located between the shift block 21 and the shift block mounting member 22. In the above implementation, the second drive screw 42 is driven to rotate by the second drive motor 41, the second drive screw 42 is threadedly installed in the fourth threaded mounting hole, and the second anti-rotation structure 43 is arranged in the placement space and is located between the shift block 21 and the shift block mounting member 22, thereby realizing that the shift block 21 moves in the up and down directions without rotating.

[0053] It should be noted that the above-mentioned actions of moving the shift block mounting member 22 in the left-right direction without rotating and moving the shift block 21 in the up-down direction without rotating can be performed simultaneously or one by one. The effects are the same as above and will not be described in detail here.

[0054] In the technical solution of the present invention, the specific form of the first anti-rotation structure 33 is not limited. For example, a guide groove and a guide protrusion are provided between the shift block mounting member 22 and the device housing 1, and the guide groove and the guide protrusion are installed in cooperation to achieve the anti-rotation effect. Specifically, in this embodiment, the shift block mounting member 22 is provided with a first through hole 222 in the left-right direction, and the first anti-rotation structure 33 includes a first guide rod 331 extending in the left-right direction, and the first guide rod 331 is sleeved in the first through hole 222. By moving the first guide rod 331 in the first through hole 222, the shift block mounting member 22 moves in the left-right direction without rotating. Such a configuration has a simple structure.

[0055] In the technical solution of the present invention, the specific form of the second anti-rotation structure 43 is not limited. For example, a guide groove and a guide protrusion are provided between the shift block 21 and the shift block mounting member 22, and the guide groove and the guide protrusion are installed in cooperation to achieve the anti-rotation effect. Specifically, in this embodiment, the shift block 21 is provided with a second through hole 212 in the up-down direction, and the second anti-rotation structure 43 includes a second guide rod 431 extending in the left-right direction, and the second guide rod 431 is sleeved in the second through hole 212. By moving the second guide rod 431 in the second through hole 212, the shift block 21 is moved in the up-down direction without rotating. Such a configuration has a simple structure.

[0056] Taking into account the need to remotely start the focus point selection interface during remote control, in the present embodiment, an operating component 5 is also included, wherein the operating component 5 includes a pressure block 51 and a linear drive device 52, wherein the pressure block 51 has a forward and backward movable stroke for pressing the focus point selection button of the shooting device 1000, a fixed end of the linear drive device 52 is disposed on the device housing 1, and a driving end of the linear drive device 52 is disposed on the pressure block 51, and the pressure block 51 is driven by the linear drive device 52 to move so as to press the focus point selection button of the shooting device 1000, thereby realizing remote start of the focus point selection interface of the shooting device 1000, which has a simple structure and is easy to operate.

[0057] Considering that the focus point moving and adjusting device 100 is installed on the shooting device 1000, in the technical solution of the present invention, the focus point moving and adjusting device 100 also includes a shell fixing structure 6, and the shell fixing structure 6 is used to fix the device shell 1 on the shooting device 1000, thereby realizing the fixed installation of the focus point moving and adjusting device 100.

[0058] In the technical solution of the present invention, the specific form in which the focus point moving adjustment device 100 is installed in the shooting device 1000 is not limited. Figures 5 and 6In this embodiment, the housing fixing structure 6 includes a bottom plate 61, a mounting plate 61a, a connecting stud 62 and a first locking assembly 63. The bottom plate 61 is extended in the front-back direction. The front upper surface of the bottom plate 61 is used to install the device housing 1. There are multiple ways to install the device housing 1 on the bottom plate 61. Specifically, in the technical solution of the present invention, the device housing 1 is detachably installed on the bottom plate 61. The mounting plate 61a is extended in the left-right direction and movably installed on the bottom plate 61 in the front-back direction. The connecting stud 62 is provided on the right upper surface of the mounting plate 61a and is used to be threadedly connected with the mounting hole provided on the shooting device 1000. In this way, the shooting device 1000 can be moved away from or close to the device housing 1 in the front-back direction, so that the shift block 21 is always fixed to the focus adjustment lever of the shooting device 1000, so that the focus movement adjustment device 100 can be installed on the shooting devices 1000 of different sizes, and it is easy to disassemble. The first locking assembly 63 includes a first locking rod 631 with a left-right movable stroke, and the first locking rod 631 passes through the side surface of the mounting plate 61a and the head end surface of the first locking rod 631 is pressed against the side surface of the bottom plate 61. After the position of the mounting plate 61a is adjusted, the mounting plate 61a is fixed to prevent the shooting device 1000 from moving in the front-back direction, which affects the use of the focus point movement adjustment device 100.

[0059] It should be noted that there are various ways to install the camera device 1000 on the mounting plate 61a, for example, the camera device 1000 is threadedly connected to the mounting plate 61a. In the present embodiment, the camera device 1000 is provided with a mounting hole, and the mounting plate 61a is provided with a connecting stud 62. In other embodiments, the setting positions of the mounting hole and the connecting stud 62 can be interchanged. Of course, the camera device 1000 and the mounting plate 61a can also be installed by means of a card slot and a card cam, which is not limited in the present application.

[0060] See also Figures 7 and 8 The shell fixing structure 6 includes a hanging bracket 64, and the hanging bracket 64 is used to be arranged between the device shell 1 and the shooting device 1000, and is used to hang the device shell 1 on the shooting device 1000. Such an arrangement facilitates the installation of the shell fixing structure 6 on the shooting device 1000.

[0061] Taking into account that the shell fixing structure 6 may shake when hung on the shooting device 1000, a first threaded hole is penetrated on the left side of the hanging frame 64, and the shell fixing structure 6 includes a second locking assembly 65, and the second locking assembly 65 includes a second locking rod 651 with a left and right movable stroke, and the second locking rod 651 passes through the first threaded hole to be tightly pressed against the side surface of the shooting device 1000. Such an arrangement makes the connection between the shell fixing structure 6 and the shooting device 1000 more firmly, and the shell fixing structure 6 can be installed on the shooting devices 1000 of different sizes, so as to facilitate disassembly.

[0062] In the technical solution of the present invention, the shell fixing structure 6 includes a mounting frame 66, and the mounting frame 66 is used to install the focus point moving adjustment device 100. The mounting frame 66 includes a cantilever 661 extending upward, and the upper end of the cantilever 661 is bent backward to form a bending arm 6611. The bending arm 6611 is clamped in the hot shoe slot of the shooting device 1000. Such a configuration facilitates the positioning and installation of the mounting frame 66 and is simple to operate. The mounting frame 66 also includes two mounting arms 662 extending in the front-to-back direction and arranged at intervals in the left-to-right direction. A mounting space is formed between the two mounting arms 662. The shooting device 1000 is placed in the mounting space, and the mounting arm 662 located on the right side is provided with a second threaded hole. The shell fixing structure 6 also includes a third locking assembly 67. The third locking assembly 67 includes a third locking rod 671 with a left-to-right movable stroke. The third locking rod 671 passes through the second threaded hole to press against the side surface of the shooting device 1000. With this arrangement, the shell fixing structure 6 is more firmly connected to the shooting device 1000, and the device shell 1 can be installed on shooting devices 1000 of different sizes for easy disassembly.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A focus point movement adjustment device, characterized in that: include A device housing, used for being mounted on a photographing device; An adjustment component, disposed on the device housing, the adjustment component comprising a shift block having a movable travel in the up-down direction and the left-right direction, the shift block being used to be fixed to the focus adjustment lever of the shooting device; as well as, A first electric drive assembly, disposed in the device housing, for driving the shift block to move; Wherein, the adjustment component is arranged in the housing of the device, and the adjustment component includes a shift block mounting member, and the shift block mounting member is movably mounted on the housing of the device in a left-right direction; The shift block is movably mounted on the shift block mounting member in the up-down direction; The first electric drive assembly comprises: A first motor drive assembly, disposed in the device housing, for driving the shift block mounting member to move; and The second motor driving component is arranged on the shift block mounting part and is used for driving the shift block to move.

2. The focus point movement adjustment device according to claim 1, characterized in that: The lower end of the shift block mounting piece is provided with a first threaded mounting hole in the left-right direction, the first motor drive assembly includes a first drive motor, a first drive screw and a first anti-rotation structure, the first drive motor is arranged in the device housing, the first drive motor has a first output shaft extending in the left-right direction, the first drive screw is extended in the left-right direction, the first drive screw is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw is threadedly installed in the first threaded mounting hole, and the first anti-rotation structure is arranged between the shift block mounting piece and the device housing; and / or, The shift block mounting piece forms an accommodation space, the shift block is placed in the accommodation space, a second threaded mounting hole is penetrated in the up-down direction on the right side of the shift block, the second motor drive assembly includes a second drive motor, a second drive screw and a second anti-rotation structure, the second drive motor is arranged in the accommodation space, the second drive motor has a second output shaft extending in the up-down direction, the second drive screw is extended in the up-down direction, the second drive screw is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw is threadedly installed in the second threaded mounting hole, and the second anti-rotation structure is arranged in the accommodation space and is located between the shift block and the shift block mounting piece.

3. The focus point movement adjustment device according to claim 1, characterized in that: The shift block mounting piece is provided with a third threaded mounting hole along the left-right direction, the first motor drive assembly includes a first drive motor, a first drive screw, and a first anti-rotation structure, the first drive motor is arranged in the device housing, the first drive motor has a first output shaft extending along the left-right direction, the first drive screw is extended along the left-right direction, the first drive screw is fixedly connected to the first output shaft and rotates coaxially with the first output shaft, the first drive screw is threadedly mounted in the third threaded mounting hole, and the first anti-rotation structure is arranged between the shift block mounting piece and the device housing; and / or, The shift block mounting piece is formed with a mounting groove extending in the left and right directions, the shift block is placed in the mounting groove, the shift block is penetrated by a fourth threaded mounting hole in the up and down directions, the second motor drive assembly includes a second drive motor, a second drive screw and a second anti-rotation structure, the second drive motor is mounted on the shift block mounting piece, the second drive motor has a second output shaft extending in the up and down directions, the second drive screw is extended in the up and down directions, the second drive screw is fixedly connected to the second output shaft and rotates coaxially with the second output shaft, the second drive screw is threadedly mounted in the fourth threaded mounting hole, and the second anti-rotation structure is arranged in the mounting groove and is located between the shift block and the shift block mounting piece.

4. The focus point movement adjustment device according to claim 2 or 3, characterized in that: The shift block mounting piece is provided with a first through hole along the left-right direction; The first anti-rotation structure includes a first guide rod extending in the left-right direction, and the first guide rod is sleeved in the first through hole.

5. The focus point movement adjustment device according to claim 2 or 3, characterized in that: The shift block is provided with a second through hole in the up-down direction; The second anti-rotation structure includes a second guide rod extending in an up-down direction, and the second guide rod is sleeved in the second through hole.

6. The focus point movement adjustment device according to claim 1, characterized in that: It also includes an operating component, which includes a pressure block and a linear drive device. The pressure block has a forward and backward movable stroke and is used to press the focus point selection button of the shooting device. The fixed end of the linear drive device is arranged on the device housing, and the driving end is arranged on the pressure block to drive the pressure block to move.

7. The focus point movement adjustment device according to claim 1, characterized in that: It also includes a shell fixing structure for fixing the device shell to the shooting device.

8. The focus point movement adjustment device according to claim 7, characterized in that: The housing fixing structure comprises a bottom plate, a mounting plate, a connecting stud and a first locking assembly, wherein the bottom plate is extended in the front-back direction, the front upper surface of the bottom plate is used to mount the device housing, the mounting plate is extended in the left-right direction, and is movably mounted on the bottom plate in the front-back direction, the connecting stud is arranged on the right upper surface of the mounting plate, and is used to be threadedly connected with the mounting hole provided on the photographing device, and the first locking assembly comprises a first locking rod with a left-right movable stroke, the first locking rod passes through the side surface of the mounting plate, and the head end surface of the first locking rod is used to be pressed against the side surface of the bottom plate; and / or, The housing fixing structure comprises a hanging rack, and the hanging rack is used to be arranged between the device housing and the shooting device, and is used to hang the device housing on the shooting device.

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