CN215499339U - Belt transmission tensioning adjusting mechanism and image acquisition equipment - Google Patents

Abstract

The utility model provides a belt transmission tensioning adjusting mechanism and image acquisition equipment. The belt transmission tensioning adjusting mechanism comprises a supporting component, an angle adjusting component, a driving component, a belt transmission component and a tensioning component, wherein the angle adjusting component is installed on the supporting component, the driving component is movably connected to the supporting component, and a pre-connection state is formed between the driving component and the supporting component; the belt transmission assembly is arranged between the driving assembly and the angle adjusting assembly so as to transmit the power of the driving assembly to the angle adjusting assembly; the tensioning assembly comprises a force application part and an installation part, wherein the force application part is movably installed on one of the supporting assembly and the driving assembly through the installation part, and the driving assembly can be pushed to be relatively far away from the supporting assembly in a pre-connection state so as to tension the belt transmission assembly. The belt transmission tensioning adjusting mechanism provided by the utility model is convenient and quick to operate, and the effect of eliminating the gap in the belt transmission assembly by the tensioning assembly is better.

Description

Belt transmission tensioning adjusting mechanism and image acquisition equipment

Technical Field

The utility model relates to the technical field of security protection, in particular to a belt drive tensioning adjusting mechanism and image acquisition equipment.

Background

Surveillance cameras are nowadays increasingly used for real-time monitoring of urban dwellings and road traffic. In order to ensure that the monitoring camera can better track the monitoring area and adjust the shooting angle of the camera, a camera angle adjusting unit is usually arranged in the monitoring camera and comprises a driving assembly for providing power and a worm and gear assembly for changing the angle of the camera.

The power transmission of drive assembly is passed through to the worm to current surveillance camera machine through the belt drive mode, and the phenomenon that the drive belt is lax appears easily in the belt drive mode, can lead to the drive belt to skid after long-time the use, the band pulley rotates the synchronism and worsens, drive belt and band pulley scheduling problem that drops. Therefore, the existing monitoring camera generally has the problems that the tension of the transmission belt and the belt wheel is difficult and time-consuming to adjust, the real-time adjustment cannot be realized, the success rate is low, the adjusting effect depends on the experience of workers, the gap between the belt wheel and the transmission belt cannot be well eliminated, and the slip and the looseness still occur after the adjustment.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a belt-driven tensioning adjustment mechanism for an image capturing device, comprising a supporting assembly, an angle adjustment assembly, a driving assembly, a belt-driven assembly and a tensioning assembly, wherein the angle adjustment assembly is mounted on the supporting assembly, the driving assembly is movably connected to the supporting assembly, and a pre-connection state is provided between the driving assembly and the supporting assembly; the belt transmission assembly is arranged between the driving assembly and the angle adjusting assembly and transmits the power of the driving assembly to the angle adjusting assembly; the tensioning assembly comprises a force application part and an installation part, wherein the force application part is movably installed on one of the supporting assembly and the driving assembly through the installation part, and the driving assembly can be pushed to be relatively far away from the supporting assembly in a pre-connection state so as to tension the belt transmission assembly.

The present invention provides a belt driven tensioning adjustment mechanism that allows a person to manipulate movement of a tensioning assembly using an external tool to effect tensioning of a belt driven assembly that, while moving relative to one of a drive assembly and a support assembly, also applies a feed pushing force to the other of the drive assembly and the support assembly. Therefore, the effect of eliminating the gap in the belt transmission assembly by the tensioning assembly is better, and the tensioning degree of the transmission belt is not influenced by force application or operation experience of personnel; the utility model also has the advantages of convenient and quick adjustment and is beneficial to tensioning the transmission belt in real time.

In one embodiment, the force application portion comprises a thrust element, the mounting portion comprises a rotation adjusting element, and the thrust element is in threaded fit with the rotation adjusting element; the rotation adjusting element is rotatably mounted to the support assembly and drives the thrust element by rotating relative to the support assembly such that the thrust element pushes the drive assembly.

So set up, after personnel applyed the external force to application of force portion, the spiral motion between application of force portion and the installation department can be decomposed into the rotation of installation department for supporting component to and application of force portion along the translation motion of axial for supporting component, therefore application of force process of application of force portion to drive assembly is more steady.

In one embodiment, the rotation adjusting element includes a first axial stopping portion and a second axial stopping portion, the supporting assembly includes a cover plate, the rotation adjusting element penetrates through the cover plate and abuts against two sides of the cover plate, which face away from the cover plate, through the first axial stopping portion and the second axial stopping portion, so as to limit the rotation adjusting element to move relative to the cover plate along the axial direction.

With the arrangement, the rotary adjusting element is reliably and fixedly connected with the cover plate in the axial direction and cannot move relatively in the axial direction.

In one embodiment, the rotation adjusting element comprises a rotation sleeve and a limiting clamping piece which are detachably connected, the rotation sleeve comprises a sleeve joint part and a force bearing part, the force bearing part is positioned at one end of the sleeve joint part and protrudes outwards along the radial direction of the sleeve joint part, one end of the sleeve joint part, which is relatively far away from the force bearing part, is provided with a limiting shaft shoulder, and the limiting clamping piece is sleeved at one end of the sleeve joint part, which is relatively far away from the force bearing part, and is abutted against the limiting shaft shoulder; the radial dimension of bearing portion and spacing joint spare is greater than the radial dimension of portion of cup jointing, and bearing portion and spacing joint spare are used for forming first axial backstop portion and second axial backstop portion respectively.

So set up, rotate adjusting element's simple structure, easy machine-shaping rotates the assembly between cover and the apron of being convenient for of cover and spacing joint spare components of a whole that can function independently shaping.

In one embodiment, the outer peripheral wall of the bearing part is provided with a matching groove; and/or the peripheral wall of the bearing part is provided with a propping surface for clamping an external tool.

So set up, personnel can use external tool, exert external force in order to implement the tensioning adjustment along the circumference of strength portion.

In one embodiment, the belt transmission assembly comprises a first wheel body connected with the output end of the driving assembly and a second wheel body connected with the input end of the angle adjusting assembly, the force application part and the mounting part are integrally formed, the mounting part is in threaded fit with the supporting assembly, and the force application part is used for abutting against the driving assembly; and/or the driving component comprises a driving motor, and the first wheel body is coaxially connected with an output shaft of the driving motor; the angle adjusting component comprises a worm wheel and a worm, and the second wheel body is coaxially connected with the worm.

So set up, tensioning assembly's simple structure, and tensioning assembly and supporting component's assembly is easier.

In one embodiment, the belt-driven tension adjustment mechanism further comprises a guide fixedly connecting one of the drive assembly and the support assembly and a mating member fixedly connecting the other of the drive assembly and the support assembly; the guide piece is in sliding fit with the matching piece, so that the driving assembly and the supporting assembly can move relatively along a preset track.

By the arrangement, the relative movement between the driving component and the supporting component is limited in the direction and the displacement range defined by the preset track, so that the relative displacement between the driving component and the supporting component can be prevented from exceeding the length of the preset track, or the direction of the relative movement between the driving component and the supporting component is prevented from deviating from the direction of the preset track, and the driving component is prevented from colliding and interfering with other elements in the image acquisition equipment or the belt transmission tensioning mechanism.

In one embodiment, the guide member comprises a fixed plate, the mating member comprises a first fastening element, the fixed plate is fixedly connected with the driving assembly, and the fixed plate is provided with a sliding channel which defines a preset track; the first fastening element penetrates through the sliding channel, the first fastening element is in threaded connection with the supporting assembly, and the driving assembly and the supporting assembly are connected in advance and fixedly connected through the first fastening element.

So set up, the passageway that slides has the effect that the direction of sliding and threaded connection lead to the groove concurrently, can make the structure of fixed plate compacter.

In one embodiment, the fitting piece further comprises a guide limiting column, and the guide limiting column is fixedly connected with the supporting component and penetrates through the sliding channel.

The utility model also provides image acquisition equipment, which comprises a camera and the belt transmission tensioning adjusting mechanism in any one of the above embodiments, wherein the camera is connected with the angle adjusting assembly.

Drawings

Fig. 1 is a schematic structural diagram of a camera angle adjusting unit according to a preferred embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of an angle adjustment unit of the camera shown in fig. 1 at a second viewing angle;

fig. 3 is an exploded schematic view of the camera angle adjustment unit shown in fig. 1;

figure 4 is a schematic diagram of the structure of a tensioning assembly of a preferred embodiment of the present invention.

Description of reference numerals:

100. a belt drive tension adjustment mechanism; 10. a support assembly; 11. a guide limit column; 12. a cover plate; 13. a bottom case; 30. a drive assembly; 40. a belt drive assembly; 41. a first wheel body; 42. a second wheel body; 43. a transmission belt; 50. a tension assembly; 51. a thrust element; 52. rotating the adjustment element; 5201. a first axial stop; 5202. a second axial stop; 521. rotating the sleeve; 5211. a socket joint part; 5212. a force bearing portion; 5213. a limiting shaft shoulder; 522. a limiting clamping piece; 60. a fixing plate; 61. a slipping channel; 71. a first fastening element.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The utility model provides a belt transmission tensioning adjusting mechanism 100 used in an image acquisition device, which can perform real-time tensioning adjustment on a belt transmission assembly 40 in the image acquisition device. The belt transmission assembly 40 is used for transmitting power generated by the driving assembly 30 to the camera angle adjusting assembly, and the camera angle adjusting assembly further drives the camera to move and track the monitoring area.

In the present embodiment, the belt-driven tension adjustment mechanism 100 is applied to a monitoring camera. It is understood that in other embodiments, the belt drive tension adjustment mechanism 100 may be used in other types of image capture devices and is not limited to surveillance cameras.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a camera angle adjusting unit according to a preferred embodiment of the present invention at a first viewing angle; fig. 2 is a schematic structural diagram of an angle adjustment unit of the camera shown in fig. 1 at a second viewing angle; fig. 3 is an exploded schematic view of the camera angle adjustment unit shown in fig. 1; figure 4 is a schematic diagram of the structure of a tension assembly 50 in accordance with a preferred embodiment of the present invention.

The belt drive tension adjustment mechanism 100 includes a support assembly 10, an angle adjustment assembly, a drive assembly 30, and a belt drive assembly 40. The supporting component 10 is used for bearing and installing an angle adjusting component, and the angle adjusting component is connected with the belt transmission component 40, can be connected with a camera and is used for driving the camera to move; the driving assembly 30 is movably connected to the supporting assembly 10 for providing power and outputting to the angle adjusting assembly through the belt transmission assembly 40; the belt transmission assembly 40 is disposed between the driving assembly 30 and the angle adjusting assembly, and is used for transmitting the power of the driving assembly 30 to the angle adjusting assembly, and includes a first wheel body 41 connected to the power output end of the driving assembly 30, a second wheel body 42 connected to the power input end of the angle adjusting assembly, and a transmission belt 43 sleeved on the first wheel body 41 and the second wheel body 42.

The driving assembly 30 and the supporting assembly 10 have a pre-connection state and a fixed connection state therebetween. The pre-connection means that the driving component 30 and the supporting component 10 have freedom of relative movement, but the driving component 30 and the supporting component 10 are kept connected, and at this time, a person can adjust the relative positions of the driving component 30 and the supporting component 10, and further change the distance between the first wheel body 41 and the second wheel body 42 to tension the transmission belt 43; in the fixed connection state, the distance between the first wheel 41 and the second wheel 42 is kept fixed, and the driving assembly 30 can be started to operate so as to allow the angle adjusting assembly to drive the camera to move.

In the present embodiment, the supporting assembly 10 includes a cover plate 12 and a bottom shell 13, which are covered with each other, and form an accommodating space for accommodating the angle adjusting assembly; the angle adjusting assembly comprises a worm gear mechanism which is meshed with each other, wherein one end of the worm extends out of the bottom shell 13; the driving assembly 30 is disposed outside the cover plate 12.

The driving assembly 30 is preferably a rotating electric machine, and includes an output shaft parallel to the worm, a first wheel 41 coaxially and fixedly mounted with the output shaft, and a second wheel 42 coaxially and fixedly mounted with an end of the worm extending out of the bottom case 13. The worm and gear mechanism can realize the speed reduction and torque increase functions of the output power of the driving assembly 30, and the load capacity of the worm and gear mechanism is improved while the motion speed of the camera is reduced, so that the worm and gear mechanism is beneficial to driving the camera with large weight to move.

In order to avoid the slip of the belt transmission assembly 40, improve the transmission efficiency and the load capacity of the belt transmission assembly 40, and improve the motion synchronism of the first wheel 41 and the second wheel 42, and the worm and the output shaft, the transmission belt 43 preferably employs a timing belt, and a first tooth protrusion portion is provided on an inner ring of the timing belt, and correspondingly, second and third tooth protrusion portions that mesh with an inner ring of the timing belt are provided on the outer circumferential walls of the first wheel 41 and the second wheel 42, respectively.

It is understood that in other embodiments, the drive belt 43 may be a flat belt or a V-belt; other types of transmission mechanisms may be used for the angle adjustment assembly.

The nature of the belt drive itself determines that the monitoring camera may slip or loosen the belt 43 after long-term operation, which may result in poor motion synchronization of the belt drive assembly 40, delay or failure of camera angle adjustment, and in severe cases, the belt 43 and the first and second wheels 41 and 42 may fall off. Therefore, a tension adjusting operation of the belt driving assembly 40 is often required.

The existing monitoring camera generally has the problems that the tension of a transmission belt and a belt wheel is difficult and time-consuming to adjust, the real-time adjustment cannot be realized, the success rate is low, the adjusting effect depends on the experience of workers, the gap between the belt wheel and the transmission belt cannot be eliminated well, and the problem of slipping and loosening still exists in an adjusted belt transmission assembly.

In view of this, the present invention provides a belt drive tension adjustment mechanism 100 that further includes a tension assembly 50. The tension assembly 50 includes a force application portion and a mounting portion connected to each other, and the force application portion is movably mounted on one of the support assembly 10 and the driving assembly 30 through the mounting portion. In the pre-connection state, the tension assembly 50 can push the other one of the support assembly 10 and the driving assembly 30 to move by the force application portion, and make the first wheel 41 and the second wheel 42 move away from each other, thereby increasing the center distance of the belt transmission assembly 40.

In the present embodiment, the tension assembly 50 urges the drive assembly 30 to move in the pre-connection state, thereby tensioning the belt drive assembly 40. The situation that the tensioning assembly 50 pushes the support assembly 10 to move to achieve tensioning will not be described in detail below.

The present invention provides a belt drive tension adjustment mechanism 100 that allows a person to manipulate the movement of the tension assembly 50 using an external tool to effect tension in the belt drive assembly 40, the tension assembly 50 moving relative to one of the drive assembly 30 and the support assembly 10 while also applying a feed pushing force to the other of the drive assembly 30 and the support assembly 10. Therefore, the tensioning assembly 50 has better effect of eliminating the clearance in the belt transmission assembly 40, and the tensioning degree of the transmission belt 43 is not influenced by the force application or operation experience of personnel; the utility model also has the advantage of convenient and fast adjustment, and is beneficial to tensioning the transmission belt 43 in real time.

Specifically, in the present embodiment, the force application portion includes a thrust element 51, the mounting portion includes a rotation adjusting element 52, and the thrust element 51 is inserted through and extends out of the rotation adjusting element 52, and a threaded fit is formed therebetween. The rotational adjustment member 52 is rotatably mounted to the support assembly 10. One end of the thrust element 51, which extends out of the rotation adjusting element 52, protrudes towards the driving assembly 30 and can abut against the driving assembly 30, and the rotation adjusting element 52 drives the thrust element 51 to move along the axial direction thereof in a manner of rotating relative to the support assembly 10, so that the thrust element 51 pushes the driving assembly 30 away from the support assembly 10.

It is understood that in other embodiments, the rotating adjusting element 52 may be arranged inside the thrust element 51, and therefore, the form of the threaded fit between the thrust element 51 and the rotating adjusting element 52 is not limited, and is not limited to the solution in the present embodiment.

The rotary adjustment element 52 is intended to take up the forces of an external tool and to transmit power to the thrust element 51 by means of a screw fit. When a person applies a force to the rotary adjustment element 52 using an external tool, the helical movement between the thrust element 51 and the rotary adjustment element 52 can be decomposed into a rotation of the rotary adjustment element 52 with respect to the support assembly 10 and a translational movement of the thrust element 51 in the axial direction with respect to the support assembly 10.

In the present embodiment, the thrust element 51 applies a thrust force to the drive assembly 30 along a side perpendicular to the cover plate 12 facing away from the bottom case 13. It is understood that in other embodiments, the thrust element 51 may also apply thrust to the driving assembly 30 in other directions, and the thrust direction may also be parallel to the surface of the cover plate 12, as long as the first wheel 41 and the second wheel 42 can be driven away from each other to increase the center distance of the belt transmission assembly 40.

It will be appreciated that in other embodiments, the rotary adjustment element 52 may be mounted on the drive assembly 30, and in accordance therewith, the thrust element 51 may be mounted on the drive assembly 30, with the thrust element 51 projecting toward the support assembly 10. The thrust element 51 applies a feeding thrust to the support assembly 10 during the force applied by the person to the rotating adjustment element 52, and the purpose of increasing the center distance of the belt transmission assembly 40 can also be achieved, and the arrangement is not limited in the embodiment.

Further, in the present embodiment, the rotation adjusting element 52 is disposed through the cover plate 12 and includes a first axial stop 5201 and a second axial stop 5202. The rotation adjusting element 52 is abutted against two sides of the cover plate 12 facing away from each other through the first axial stop portion 5201 and the second axial stop portion 5202, so that the cover plate 12 is sandwiched between the first axial stop portion 5201 and the second axial stop portion 5202 to limit the rotation adjusting element 52 from translating relative to the cover plate 12 along the axial direction.

Preferably, in the present embodiment, the rotation adjusting element 52 includes a rotation sleeve 521 and a limit clip 522 detachably connected. The rotating sleeve 521 includes a sleeve portion 5211 for sleeving the thrust element 51 and a bearing portion 5212 for bearing the external tool acting force. The cover plate 12 is penetrated by the sleeve-joint part 5211, the bearing part 5212 is located at one end of the sleeve-joint part 5211 and protrudes radially outward along the sleeve-joint part 5211, a limiting shaft shoulder 5213 is arranged on the sleeve-joint part 5211 and relatively far away from the bearing part 5212, and the limiting clamping piece 522 sleeves one end of the sleeve-joint part 5211 relatively far away from the bearing part 5212 and abuts against the limiting shaft shoulder 5213.

In this embodiment, the radial dimensions of the bearing portion 5212 and the limiting snap-in piece 522 are both greater than the radial dimension of the sleeving portion 5211, and the bearing portion 5212 and the limiting snap-in piece 522 are used to form the first axial stop 5201 and the second axial stop 5202, respectively. So set up, the simple structure of rotation adjusting element 52, easy machine-shaping, the cover 521 and spacing joint 522 components of a whole that can function independently shaping are convenient for rotate the assembly between adjusting element 52 and apron 12.

In order to facilitate the external tool to apply a force to the rotary sleeve 521 along the circumferential direction, the outer circumferential wall of the force bearing portion 5212 in this embodiment is provided with a matching groove to facilitate matching with the L-shaped wrench. In other embodiments, the outer peripheral wall of the bearing portion 5212 may be provided with a holding surface for holding a wrench.

Further, in one embodiment not shown in the figures, the force application portion is provided coaxially and integrally formed with the mounting portion, which is screw-fitted with the support assembly 10, and the force application portion is used to abut against the driving assembly 30. Preferably, in this embodiment, the tension assembly 50 is a bolt that is threadedly coupled to the cover plate 12 and protrudes toward the driving assembly 30. So set up, tensioning assembly 50's simple structure and easy acquireing are favorable to reduction in production cost. Of course, the tensioning assembly 50 could also be threadably mounted to the drive assembly 30 and project toward the cover plate 12.

In the above embodiment, there is only a degree of freedom of the screw movement between the tension block 50 and the cover plate 12 in the axial direction of the urging portion.

Further, the belt-driven tension adjusting mechanism 100 further includes a guide member connecting one of the driving assembly 30 and the supporting assembly 10, and a fitting member connecting the other of the driving assembly 30 and the supporting assembly; the guide member and the mating member are slidably engaged with each other, so that the driving assembly 30 and the supporting assembly 10 can move relatively along a predetermined track.

Specifically, in the present embodiment, the guide comprises a fixing plate 60 and the mating element comprises a first fastening element 71. The fixing plate 60 is fixedly connected with the driving assembly 30 and attached to the outer wall of the supporting assembly 10, and is provided with a sliding channel 61, and the sliding channel 61 is preferably a long circular groove for defining the preset track; the first fastening element 71 penetrates through the sliding channel 61 and is in threaded connection with the support assembly 10, and the driving assembly 30 and the support assembly 10 are pre-connected and fixedly connected through the first fastening element 71.

Further, in this embodiment, the fitting piece further includes a guiding limiting post 11, and the guiding limiting post 11 is fixedly connected with the supporting component 10 and penetrates through the sliding channel 61.

The guide limiting columns 11 are used for assisting in bearing a part of the shearing force from the fixing plate 60, so that the shearing force of the fixing plate 60 acting on the first fastening element 71 is reduced, and the connection reliability of the driving assembly 30 and the supporting assembly 10 can be further improved.

It is understood that in other embodiments, the guiding and limiting column 11 may be fixed to the driving assembly 30, or the first fastening member 71 is screwed to the driving assembly 30, and accordingly, the fixing plate 60 is fixed to the supporting assembly 10, and is not limited to the structure of the embodiment.

The utility model also provides image acquisition equipment, which comprises a camera and the belt transmission tensioning adjusting mechanism 100 provided by the utility model, wherein the camera is connected with the angle adjusting assembly.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A belt transmission tensioning adjusting mechanism is characterized by comprising a supporting component, an angle adjusting component, a driving component, a belt transmission component and a tensioning component, wherein the angle adjusting component is mounted on the supporting component, the driving component is movably connected to the supporting component, and a pre-connection state is formed between the driving component and the supporting component;

the belt transmission assembly is arranged between the driving assembly and the angle adjusting assembly so as to transmit the power of the driving assembly to the angle adjusting assembly;

tensioning assembly includes application of force portion and installation department, application of force portion passes through the installation department movably install in supporting component with one among the drive assembly, and can push under the pre-connection state drive assembly keeps away from relatively supporting component, with the tensioning the belt drive assembly.

2. The belt drive tension adjustment mechanism of claim 1, wherein the force application portion includes a thrust element, the mounting portion includes a rotational adjustment element, and the thrust element is in threaded engagement with the rotational adjustment element;

the rotation adjusting element is rotatably mounted to the support assembly and drives the thrust element by rotating relative to the support assembly such that the thrust element pushes the drive assembly.

3. The belt drive tensioning adjustment mechanism of claim 2, wherein the rotation adjustment element includes a first axial stop and a second axial stop, the support assembly includes a cover plate, and the rotation adjustment element penetrates through the cover plate and abuts against two sides of the cover plate facing away from each other through the first axial stop and the second axial stop to limit the rotation adjustment element from moving relative to the cover plate along the axial direction.

4. The belt drive tensioning adjustment mechanism of claim 3, wherein the rotation adjustment element comprises a rotation sleeve and a limit clamp, the rotation sleeve is detachably connected with the rotation sleeve, the rotation sleeve comprises a sleeve connection portion and a force bearing portion, the force bearing portion is located at one end of the sleeve connection portion and protrudes outwards along the radial direction of the sleeve connection portion, one end of the sleeve connection portion, which is relatively far away from the force bearing portion, is provided with a limit shaft shoulder, and the limit clamp is sleeved with one end of the sleeve connection portion, which is relatively far away from the force bearing portion, and abuts against the limit shaft shoulder;

the radial size of the bearing portion and the limiting clamping piece is larger than that of the sleeving portion, and the bearing portion and the limiting clamping piece are respectively used for forming the first axial stopping portion and the second axial stopping portion.

5. The belt drive tension adjusting mechanism of claim 4, wherein the peripheral wall of the bearing portion is provided with a matching groove; and/or the peripheral wall of the bearing part is provided with a butting surface for clamping an external tool.

6. The belt drive tensioning adjustment mechanism of claim 1, wherein the belt drive assembly includes a first wheel connected to the output end of the drive assembly and a second wheel connected to the input end of the angle adjustment assembly, the force application portion is integrally formed with the mounting portion, the mounting portion is in threaded engagement with the support assembly, and the force application portion is configured to abut against the drive assembly; and/or the presence of a catalyst in the reaction mixture,

the driving assembly comprises a driving motor, and the first wheel body is coaxially connected to an output shaft of the driving motor; the angle adjusting assembly comprises a worm wheel and a worm, and the second wheel body is coaxially connected with the worm.

7. The belt drive tension adjustment mechanism of claim 1, further comprising a guide fixedly connecting one of the drive assembly and the support assembly and a mating member fixedly connecting the other of the drive assembly and the support assembly;

the guide piece is in sliding fit with the matching piece, so that the driving assembly and the supporting assembly can move relatively along a preset track.

8. The belt drive tension adjustment mechanism of claim 7, wherein the guide member comprises a fixed plate, the mating member comprises a first fastening element, the fixed plate is fixedly connected with the drive assembly, and the fixed plate defines a sliding channel that defines the predetermined path;

the first fastening element penetrates through the sliding channel, the first fastening unit is in threaded connection with the supporting assembly, and the driving assembly is in pre-connection and fixed connection with the supporting assembly through the first fastening element.

9. The belt drive tension adjustment mechanism of claim 8, wherein the mating member further comprises a guide limit post, the guide limit post being fixedly connected with the support assembly and disposed through the sliding channel.

10. An image capturing device, characterized in that the image capturing device comprises a camera and a belt drive tension adjustment mechanism according to any one of claims 1 to 9, the camera being connected to the angle adjustment assembly.

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