Retractable lens and camera equipment

Abstract

The present invention discloses a retractable lens and a camera device. The retractable lens includes a base, a lens assembly, and a driving mechanism. The base is provided with a mounting cavity. The lens assembly includes a driving cylinder installed in the mounting cavity and a zoom lens barrel movably installed in the driving cylinder along a first direction. The driving cylinder is connected to the zoom lens barrel for driving the zoom lens barrel to move when rotating. The driving mechanism includes a transmission part, a driving device for driving the transmission part to rotate, and an elastic member installed on the transmission part. The elastic member is used to elastically connect the driving cylinder to the transmission part, so that when the zoom lens barrel is subjected to an external force, the driving cylinder rotates to compress the elastic member, thereby allowing the zoom lens barrel to be retracted into the driving cylinder to avoid being damaged by collision.

Description

Technical Field

[0001] The present invention relates to the technical field of camera lenses, and in particular to a retractable lens and a camera device. Background Art

[0002] The lens is a crucial component of video cameras, and some cameras use retractable lenses. When the camera is shooting, the retractable lens extends outward to adjust the focus, leaving the lens unprotected by the camera body. Therefore, the lens can be easily damaged if it is impacted while the camera is filming. Summary of the Invention

[0003] The main purpose of the present invention is to provide a retractable lens and a camera device, aiming to solve the problem that a traditional retractable lens is easily damaged when it is hit during shooting.

[0004] To achieve the above-mentioned object, the present invention provides a retractable lens, comprising:

[0005] The base is formed with a mounting cavity open toward a first direction;

[0006] a lens assembly comprising a drive cylinder rotatably mounted in the mounting cavity about an axis in the first direction and a zoom lens barrel movably mounted in the drive cylinder along the first direction, the drive cylinder being provided with an outwardly extending opening relative to the zoom lens barrel in the first direction, the drive cylinder being drivingly connected to the zoom lens barrel, the drive cylinder being configured to drive the zoom lens barrel to move and extend from the outwardly extending opening when rotating; and

[0007] The driving mechanism includes a transmission part installed on the base and rotating around an axis in the first direction, a driving device that drives the transmission part to rotate, and an elastic member installed on the transmission part. The elastic member is used to elastically connect the driving cylinder with the transmission part so that the driving cylinder is driven to rotate when the transmission part rotates, and retracts when the zoom lens barrel is subjected to external force, so that the zoom lens barrel is retracted into the driving cylinder.

[0008] Optionally, the transmission portion includes a transmission gear, the elastic member is provided on a side wall of the transmission gear, and the elastic member is located on a peripheral side of the transmission gear;

[0009] The driving cylinder is arranged opposite to the transmission gear in the first direction, and a connecting piece is provided on the outer wall of the driving cylinder. The connecting piece extends from the driving cylinder toward the elastic piece to abut against the elastic piece, so that the elastic piece pushes the connecting piece when it rotates.

[0010] Optionally, the transmission part further comprises an arc-shaped rod provided on the transmission gear, wherein the arc-shaped rod is provided along the circumference of the transmission gear;

[0011] One end of the connecting member is provided with a through hole for the arc-shaped rod to pass through, and the other end is connected to the driving cylinder;

[0012] The elastic member is a spring sleeved on the arc-shaped rod, so that when the transmission gear rotates, the spring pushes the connecting member to move on the arc-shaped rod.

[0013] Optionally, the elastic member is a plurality of elastic paddles, and the plurality of elastic paddles are arranged at intervals on the circumference of the transmission gear.

[0014] Optionally, the driving device includes:

[0015] A stepper motor, wherein the output shaft of the stepper motor is provided with a worm;

[0016] a driving gear meshing with the worm; and

[0017] The transmission gear is engaged with the driving gear, and the transmission gear is connected to the driving cylinder to drive the driving cylinder to rotate.

[0018] Optionally, the retractable lens further comprises a mounting tube fixedly mounted on the base, and an internal space of the mounting tube constitutes the mounting cavity;

[0019] The installation cavity includes a first installation cavity provided in the middle and a second installation cavity provided around the first installation cavity. The first installation cavity is used for installing the driving cylinder, and the second installation cavity is used for installing the driving device.

[0020] Optionally, the retractable lens further comprises a mounting tube fixedly mounted on the base, the interior space of the mounting tube constituting the mounting cavity, a first guide groove opening toward the mounting cavity is formed on a side wall of the mounting tube, and the first guide groove is arranged obliquely with respect to the first direction;

[0021] The driving cylinder is provided with a first driving groove relative to the first guide groove, and the first driving groove is extended along the first direction;

[0022] The zoom lens barrel includes a first zoom lens barrel, and a first driving protrusion is provided on the side wall of the first zoom lens barrel extending from the driving cylinder toward the mounting cylinder. The first driving protrusion extends from the first driving groove into the first guide groove so that when the driving cylinder rotates, the first driving protrusion moves upward along the first guide groove.

[0023] Optionally, the mounting cylinder is provided with a second driving groove spaced apart from the first guide groove, and the second driving groove is extended along the first direction;

[0024] The driving cylinder is further provided with a second guide groove relative to the second driving groove, and the second guide groove is inclined in a direction opposite to the first guide groove;

[0025] A third guide groove is formed on the side wall of the first zoom lens barrel, the opening of the third guide groove being directed toward the interior thereof, and the third guide groove is inclined in the same direction as the second guide groove;

[0026] The zoom lens barrel further includes:

[0027] a second zoom lens barrel mounted in the first zoom lens barrel, the second zoom lens barrel being provided with a third driving groove extending in a vertical direction relative to the third guide groove, the third driving groove being provided, the second zoom lens barrel comprising a second driving protrusion extending from the driving cylinder toward the mounting cylinder, the second driving protrusion extending from the second guide groove into the second driving groove; and

[0028] The third zoom lens barrel is installed in the second zoom lens barrel and includes a third driving protrusion extending from the second zoom lens barrel toward the first zoom lens barrel. The third driving protrusion extends from the third driving groove into the third guide groove.

[0029] Optionally, a plurality of the zoom lens barrels are provided, and the plurality of zoom lens barrels are sequentially arranged from top to bottom, and an upper end of each of the zoom lens barrels located on the outside is provided with an outwardly extending opening relative to the zoom lens barrel located on the inside.

[0030] The present invention further provides a camera device, comprising a retractable lens, wherein the retractable lens comprises:

[0031] The base is formed with a mounting cavity open toward a first direction;

[0032] a lens assembly comprising a drive cylinder rotatably mounted in the mounting cavity about an axis in the first direction and a zoom lens barrel movably mounted in the drive cylinder along the first direction, the drive cylinder being provided with an outwardly extending opening relative to the zoom lens barrel in the first direction, the drive cylinder being drivingly connected to the zoom lens barrel, the drive cylinder being configured to drive the zoom lens barrel to move and extend from the outwardly extending opening when rotating; and

[0033] The driving mechanism includes a transmission part installed on the base and rotating around an axis in the first direction, a driving device that drives the transmission part to rotate, and an elastic member installed on the transmission part. The elastic member is used to elastically connect the driving cylinder with the transmission part so that the driving cylinder is driven to rotate when the transmission part rotates, and retracts when the zoom lens barrel is subjected to external force, so that the zoom lens barrel is retracted into the driving cylinder.

[0034] In the technical solution of the present invention, a mounting cavity is provided on the base for mounting the lens assembly. Within the lens assembly, the zoom lens barrel is driven in the first direction by the drive cylinder, thereby achieving zooming of the retractable lens. The drive device is capable of rotating the transmission unit, which in turn drives the drive cylinder to rotate, thereby extending the zoom lens. It should be noted that the drive mechanism also includes an elastic member that elastically connects the drive cylinder to the transmission unit, creating a certain elastic space between the drive cylinder and the transmission unit. When the zoom lens is retracted within the mounting cavity, it is protected by the mounting cavity. When the zoom lens is extended and encounters a collision, it is subjected to a thrust, which causes the zoom lens to push the drive cylinder, which in turn compresses the elastic space between the drive cylinder and the mounting cavity. After compressing the elastic space, the drive cylinder rotates, allowing the zoom lens to return to the drive cylinder, preventing damage from collisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0036] Figure 1 A schematic cross-sectional view of an embodiment of the retractable lens provided by the present invention (zoom barrel retracted)

[0037] Figure 2 for Figure 1 A schematic cross-sectional view of the zoom lens barrel of the retractable lens when extended;

[0038] Figure 3 for Figure 1 Schematic diagram of the structure of the retractable lens from another angle.

[0039] Description of Figure Numbers:

[0040]

[0041]

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] 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 various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0045] 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 for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. 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 this field to implement. When the combination of technical solutions is mutually 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.

[0046] The lens is a crucial component of video cameras, and some cameras use retractable lenses. When the camera is shooting, the retractable lens extends outward to adjust the focus, leaving the lens unprotected by the camera body. Therefore, the lens can be easily damaged if it is impacted while the camera is filming.

[0047] In view of this, the present invention provides an imaging device, wherein the imaging device includes the retractable lens. Any imaging device including the retractable lens belongs to the imaging device described in the present invention. Figures 1 to 3 This is an embodiment of the retractable lens provided by the present invention.

[0048] See also Figures 1 to 3 The present invention proposes a retractable lens 100, comprising: a base 1, a lens assembly 2, and a driving mechanism 3. The base 1 is formed with a mounting cavity 12 that is open in a first direction; the lens assembly 2 includes a driving cylinder 22 that is rotatably mounted in the mounting cavity 12 around an axis in the first direction, and a zoom lens barrel 21 that is movably mounted in the driving cylinder 22 along the first direction. The driving cylinder 22 is provided with an outwardly extending opening 224 relative to the zoom lens barrel 21 in the first direction, and the driving cylinder 22 is drivingly connected to the zoom lens barrel 21. The driving cylinder 22 is used to drive the zoom lens barrel 21 to move when rotating to adjust the zoom lens barrel 21. The outward opening 224 extends out; the driving mechanism 3 includes a transmission part 31 installed on the base 1 and rotating around an axis in the first direction, a driving device 32 driving the transmission part 31 to rotate, and an elastic member 33 installed on the transmission part 31, the elastic member 33 is used to elastically connect the driving cylinder 22 with the transmission part 31, so that when the transmission part 31 rotates, the driving cylinder 22 is driven to rotate, and when the zoom lens barrel 21 is subjected to external force, it retracts, so that the zoom lens barrel 21 is retracted into the driving cylinder 22.

[0049] In the present invention, the first direction is the extension and retraction direction of the zoom lens barrel 21 .

[0050] In the technical solution of the present invention, the mounting cavity 12 is provided on the base 1 for mounting the lens assembly 2. Within the lens assembly 2, the drive cylinder 22 drives the zoom lens barrel 21 in the first direction, thereby enabling zooming of the retractable lens 100. The drive mechanism 32 is capable of rotating the transmission portion 31, which in turn drives the drive cylinder 22 to rotate, thereby extending the zoom lens. It should be noted that the drive mechanism 3 also includes an elastic member 33, which elastically connects the drive cylinder 22 to the transmission portion 31, creating a certain elastic space between the drive cylinder 22 and the transmission portion 31. When the zoom lens is retracted within the mounting cavity 12, it is protected by the mounting cavity 12. When the zoom lens is extended, or when it encounters a collision, it is subjected to a thrust, which causes the zoom lens to push the drive cylinder 22, which in turn compresses the elastic space between the drive cylinder 22 and the mounting cavity 12. The driving cylinder 22 rotates after compressing the elastic space, which also enables the zoom lens to return to the driving cylinder 22 to avoid being damaged by collision.

[0051] For further information, see Figure 3The transmission part 31 includes a transmission gear 311, the elastic member 33 is provided on the side wall of the transmission gear 311, and the elastic member 33 is located on the circumferential side of the transmission gear 311; the driving cylinder 22 is arranged opposite to the transmission gear 311 in the first direction, and a connecting member 221 is provided on the outer side wall of the driving cylinder 22, and the connecting member 221 extends from the driving cylinder 22 toward the elastic member 33 to abut against the elastic member 33, so that the elastic member 33 pushes the connecting member 221 when it rotates.

[0052] In this embodiment, the transmission portion 31 includes a transmission gear 311, and the elastic member 33 is disposed on the transmission gear 311. When the transmission gear 311 rotates, the elastic member 33 pushes the connecting member 221 to rotate together, thereby driving the driving cylinder 22 to rotate, thereby driving the lens assembly 2. The driving device 32 is not directly connected to the driving cylinder 22, but instead drives the driving cylinder 22 to rotate through the transmission portion 31 and the elastic member 33, so that the zoom lens barrel 21 can be elastically contracted by the elastic member 33, thereby preventing the zoom lens barrel 21 from being damaged by collision.

[0053] Furthermore, the transmission part 31 also includes an arc-shaped rod 312 provided on the transmission gear 311, and the arc-shaped rod 312 is arranged along the circumferential side of the transmission gear 311; one end of the connecting member 221 is provided with a through hole for the arc-shaped rod 312 to pass through, and the other end is connected to the driving cylinder 22; the elastic member 33 is a spring 331 sleeved on the arc-shaped rod 312, so that when the transmission gear 311 rotates, the spring 331 pushes the connecting member 221 to move on the arc-shaped rod 312.

[0054] In this embodiment, when the transmission gear 311 rotates, the curved rod 312 rotates with it. The spring 331 on the curved rod 312 pushes the connecting member 221 to move, thereby driving the drive cylinder 22 to rotate together. When the zoom lens barrel 21 is subjected to external pressure, the pressure on the drive cylinder 22 compresses the spring 331, causing the drive cylinder 22 to reverse, allowing the zoom lens barrel 21 to retract and reduce the possibility of damage. It should be noted that when the drive cylinder 22 reverses, the connecting member 221 moves on the curved rod 312. The curved rod 312 is arranged in an arc shape, which allows it to adapt to the movement trajectory of the connecting member 221, allowing the drive cylinder 22 to move smoothly along the curved rod 312, thereby compressing the spring 331 on the curved rod 312.

[0055] Regarding the spring 331, it should be noted that the specific length of the spring 331 should be set to correspond to the rotational travel of the drive cylinder 22, so that the drive cylinder 22 can fully retract the zoom lens barrel 21 into the drive cylinder 22 during rotation, ensuring adequate protection for the zoom lens barrel 21. The preload force of the spring 331 should not be too small. Otherwise, when the drive device 32 drives the transmission gear 311 to rotate, the spring 331 may not immediately push the drive cylinder 22 to rotate when pushing against the drive cylinder 22, but may instead compress, causing the zoom lens barrel 21 to extend outward in a delayed manner. The preload force of the spring 331 should not be too large. Otherwise, when the zoom lens barrel 21 is impacted, the zoom lens barrel 21 may not be able to compress the spring 331 in a timely manner, resulting in damage. The specific preload force of the spring 331 should be set according to usage requirements, and should be as small as possible while still being able to push the drive cylinder 22 to ensure normal retraction of the zoom lens barrel 21.

[0056] Furthermore, in another embodiment of the present invention, the elastic member 33 is a plurality of elastic paddles, and the plurality of elastic paddles are arranged at intervals on the circumference of the transmission gear 311 .

[0057] In this embodiment, the elastic member 33 is provided with a plurality of elastic paddles. When the transmission gear 311 rotates, the elastic paddles push the connecting member 221 to move. When the zoom lens barrel 21 is subjected to an external force, the driving cylinder 22 pushes the elastic paddles, causing the elastic paddles to deform. When the driving cylinder 22 rotates a certain angle, the connecting member 221 rotates to the other side of the elastic paddles, thereby causing the zoom lens barrel 21 to retract faster. It should be noted that the plurality of elastic paddles are spaced apart around the circumference of the transmission gear 311. Therefore, when the connecting member 221 rotates from one end of the elastic paddle to the other end, when the transmission gear 311 rotates again, the other elastic paddle can also promptly drive the driving cylinder 22 to rotate again, ensuring the normal operation of the zoom lens barrel 21.

[0058] Furthermore, the drive device 32 includes a stepper motor 321, a drive gear 322, and a transmission gear 311. The output shaft of the stepper motor 321 is provided with a worm 323; the drive gear 322 meshes with the worm 323; the transmission gear 311 meshes with the drive gear 322, and the transmission gear 311 is connected to the drive cylinder 22 to drive the drive cylinder 22 to rotate.

[0059] In this embodiment, the driving device 32 specifically uses the stepping motor 321 as a driving source. The stepping motor 321 drives the worm 323 to rotate. The worm 323 then drives the driving gear 322 and the transmission gear 311 to drive the driving cylinder 22 to rotate. It should be noted that the driving device 32 does not necessarily drive the driving gear 322 to rotate by using the stepping motor 321. The driving device 32 may also drive the driving gear 322 to rotate by using other types of motors or rotary cylinders.

[0060] Further, see Figures 1 to 2 The retractable lens 100 also includes a mounting tube 11 fixedly mounted on the base 1, and the internal space of the mounting tube 11 constitutes the mounting cavity 12; the mounting cavity 12 includes a first mounting cavity 121 located in the middle and a second mounting cavity 122 arranged around the first mounting cavity 121, the first mounting cavity 121 is used for installing the driving tube 22, and the second mounting cavity 122 is used for installing the driving device 32.

[0061] In this embodiment, the mounting cavity 12 is provided by the mounting tube 11. The mounting tube 11 itself is mounted on the base 1, and the internal space of the mounting tube 11 constitutes the mounting cavity 12. The mounting cavity 12 includes not only a first mounting cavity 121 for mounting the drive tube 22, but also a second mounting cavity 122 for mounting the drive device 32. The mounting tube 11 is disposed on the outside of the base 1, so that the mounting cavity 12 no longer needs to occupy the internal space of the base 1. In specific applications, the base 1 is generally mounted on the camera device, and the mounting tube 11 allows the retractable lens 100 to reduce the internal space occupied by the camera device.

[0062] Furthermore, the retractable lens 100 also includes a mounting tube 11 fixedly mounted on the base 1, the internal space of the mounting tube 11 constitutes the mounting cavity 12, and a first guide groove 123 is opened on the side wall of the mounting tube 11, and the first guide groove 123 is arranged at an angle to the first direction; the driving tube 22 is penetrated by a first driving groove 222 relative to the first guide groove 123, and the first driving groove 222 extends along the first direction; the zoom lens barrel 21 includes a first zoom lens barrel 211, and a first driving protrusion 2111 is extended from the driving tube 22 toward the mounting tube 11 on the side wall of the first zoom lens barrel 211, and the first driving protrusion 2111 extends from the first driving groove 222 into the first guide groove 123, so that when the driving tube 22 rotates, the first driving protrusion 2111 moves upward along the first guide groove 123.

[0063] In this embodiment, the mounting tube 11 and the driving tube 22 are arranged from the inside out, and the first guide groove 123 is arranged obliquely with respect to the first direction, and the first driving groove 222 extends along the first direction, so that when the mounting tube 11 and the driving tube 22 move relative to each other, the first driving protrusion 2111 will be pushed by the side wall of the first driving groove 222, thereby moving along the first guide groove 123, driving the first zoom lens barrel 211 to move along the first direction. It should be noted that the mounting tube 11 is fixedly mounted on the base 1, and the driving device 32 drives the driving tube 22 to rotate, so that the driving tube 22 and the mounting tube 11 move relative to each other, thereby driving the first zoom lens barrel 211. The first driving protrusion 2111 can be a block structure or a plate structure, as long as it can extend into the first driving groove 222 and the first guide groove 123 in sequence.

[0064] Furthermore, the mounting tube 11 is provided with a second driving groove 124 separated from the first guide groove 123, and the second driving groove 124 is extended along the first direction; the driving tube 22 is also penetrated by a second guide groove 223 relative to the second driving groove 124, and the second guide groove 223 is inclined in the opposite direction to the first guide groove 123; a third guide groove 2112 with an opening facing the interior thereof is provided on the side wall of the first zoom lens barrel 211, and the third guide groove 2112 is inclined in the same direction as the second guide groove 223; the zoom lens barrel 21 also includes: a second zoom lens barrel 212 and a third zoom lens barrel 213. The second zoom lens barrel 212 is installed in the first zoom lens barrel 211, and the second zoom lens barrel 212 is provided with a third driving groove 2122 relative to the third guide groove 2112, and the third driving groove 2122 is extended in the up and down directions. The second zoom lens barrel 212 includes a second driving protrusion 2121 extending from the driving cylinder 22 toward the mounting cylinder 11, and the second driving protrusion 2121 extends from the second guide groove 223 into the second driving groove 124; the third zoom lens barrel 213 is installed in the second zoom lens barrel 212, and includes a third driving protrusion 2131 extending from the second zoom lens barrel 212 toward the first zoom lens barrel 211, and the third driving protrusion 2131 extends from the third driving groove 2122 into the third guide groove 2112.

[0065] In this embodiment, the mounting tube 11 and the driving tube 22 are arranged from the inside to the outside, and the second guide groove 223 and the first guide groove 123 are tilted in opposite directions, and the second driving groove 124 is extended along the first direction, so that when the mounting tube 11 and the driving tube 22 move relative to each other, the second driving protrusion 2121 will be pushed by the side wall of the second driving groove 124, thereby moving along the second guide groove 223, driving the second zoom lens barrel 212 to move along the first direction.

[0066] It should be noted that the first driving groove 222 is provided on the driving cylinder 22, and the first guide groove 123 is provided on the mounting cylinder 11. This allows the first zoom lens barrel 211 to rotate along with the driving cylinder 22. The second driving groove 124 is provided on the mounting cylinder 11, and the second guide groove 223 is provided on the driving cylinder 22. This allows the second zoom lens barrel 212 to not rotate along with the driving cylinder 22.

[0067] The first zoom lens barrel 211 and the second zoom lens barrel 212 are arranged from the outside to the inside, and the third guide groove 2112 and the second guide groove 223 have the same deflection direction. The third drive groove 2122 extends along the first direction. Therefore, when the first zoom lens barrel 211 and the second zoom lens barrel 212 move relative to each other, the third drive protrusion 2131 will be pushed by the side wall of the third drive groove 2122, thereby moving along the third guide groove 2112, driving the third zoom lens barrel 213 to move along the first direction. It should be noted that by arranging the first zoom lens barrel 211 and the second zoom lens barrel 212 to drive the third drive lens barrel to extend, the zoom lens barrel 21 achieves multi-stage extension. If more extension layers are required, a similar structure can be used to provide a better zoom capability of the telescopic lens barrel.

[0068] Furthermore, a plurality of zoom lens barrels 21 are provided, and the plurality of zoom lens barrels 21 are sequentially arranged from top to bottom, and an upper end of each zoom lens barrel 21 located on the outer side is provided with an outwardly extending opening 224 relative to the zoom lens barrel 21 located on the inner side.

[0069] In this embodiment, the upper end of each zoom lens barrel 21 located on the outside is provided with an outward-extending opening 224 relative to the zoom lens barrel 21 located on the inside, so that multiple zoom lens barrels 21 can be extended in sequence, thereby allowing the retractable lens barrel to achieve more levels of zooming and better zooming capabilities.

[0070] 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 transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A retractable lens, characterized in that: include: The base is formed with a mounting cavity open toward a first direction; The lens assembly includes a drive cylinder rotatably mounted in the mounting cavity about an axis in the first direction, and a zoom lens barrel movably mounted in the drive cylinder along the first direction, the drive cylinder being provided with an outwardly extending opening relative to the zoom lens barrel in the first direction, and being drivingly connected to the zoom lens barrel, the drive cylinder being configured to drive the zoom lens barrel to move and extend from the outwardly extending opening when rotating; as well as, a driving mechanism comprising a transmission portion rotatably mounted on the base about an axis in the first direction, a driving device for driving the transmission portion to rotate, and an elastic member mounted on the transmission portion, the elastic member being configured to elastically connect the driving cylinder to the transmission portion so that the driving cylinder is driven to rotate when the transmission portion rotates, and to retract when the zoom lens barrel is subjected to an external force, so that the zoom lens barrel is retracted into the driving cylinder; The transmission part includes a transmission gear, and the elastic member is provided on a side wall of the transmission gear, and the elastic member is located on a circumferential side of the transmission gear; The driving cylinder is arranged opposite to the transmission gear in the first direction, and a connecting piece is provided on the outer wall of the driving cylinder. The connecting piece extends from the driving cylinder toward the elastic piece to abut against the elastic piece, so that the elastic piece pushes the connecting piece when it rotates.

2. The retractable lens according to claim 1, wherein: The transmission part further includes an arc-shaped rod provided on the transmission gear, wherein the arc-shaped rod is provided along the circumference of the transmission gear; One end of the connecting member is provided with a through hole for the arc-shaped rod to pass through, and the other end is connected to the driving cylinder; The elastic member is a spring sleeved on the arc-shaped rod, so that when the transmission gear rotates, the spring pushes the connecting member to move on the arc-shaped rod.

3. The retractable lens according to claim 1, wherein: The elastic member is a plurality of elastic paddles, and the plurality of elastic paddles are arranged at intervals on the circumference of the transmission gear.

4. The retractable lens according to claim 1, wherein: The driving device comprises: A stepper motor, wherein the output shaft of the stepper motor is provided with a worm; a driving gear meshing with the worm; and The transmission gear is engaged with the driving gear, and the transmission gear is connected to the driving cylinder to drive the driving cylinder to rotate.

5. The retractable lens according to claim 1, wherein: The retractable lens further comprises a mounting tube fixedly mounted on the base, wherein the interior space of the mounting tube constitutes the mounting cavity; The installation cavity includes a first installation cavity provided in the middle and a second installation cavity provided around the first installation cavity. The first installation cavity is used for installing the driving cylinder, and the second installation cavity is used for installing the driving device.

6. The retractable lens according to claim 1, wherein: The retractable lens further comprises a mounting tube fixedly mounted on the base, the interior space of the mounting tube constituting the mounting cavity, a first guide groove opening toward the mounting cavity is formed on a side wall of the mounting tube, and the first guide groove is arranged obliquely with respect to the first direction; The driving cylinder is provided with a first driving groove relative to the first guide groove, and the first driving groove is extended along the first direction; The zoom lens barrel includes a first zoom lens barrel, and a first driving protrusion is provided on the side wall of the first zoom lens barrel extending from the driving cylinder toward the mounting cylinder. The first driving protrusion extends from the first driving groove into the first guide groove so that when the driving cylinder rotates, the first driving protrusion moves upward along the first guide groove.

7. The retractable lens according to claim 6, wherein: The mounting cylinder is provided with a second driving groove spaced apart from the first guide groove, and the second driving groove is extended along the first direction; The driving cylinder is further provided with a second guide groove relative to the second driving groove, and the second guide groove is inclined in a direction opposite to the first guide groove; A third guide groove is formed on the side wall of the first zoom lens barrel, the opening of the third guide groove being directed toward the interior thereof, and the third guide groove is inclined in the same direction as the second guide groove; The zoom lens barrel further includes: a second zoom lens barrel mounted in the first zoom lens barrel, the second zoom lens barrel being provided with a third driving groove extending in a vertical direction relative to the third guide groove, the third driving groove being provided, the second zoom lens barrel comprising a second driving protrusion extending from the driving cylinder toward the mounting cylinder, the second driving protrusion extending from the second guide groove into the second driving groove; and The third zoom lens barrel is installed in the second zoom lens barrel and includes a third driving protrusion extending from the second zoom lens barrel toward the first zoom lens barrel. The third driving protrusion extends from the third driving groove into the third guide groove.

8. The retractable lens according to claim 1, wherein: There are multiple zoom lens barrels, which are arranged in sequence from top to bottom. The upper end of each zoom lens barrel located on the outside is provided with an outwardly extending opening relative to the zoom lens barrel located on the inside.

9. A camera device, characterized in that: Comprising the retractable lens according to any one of claims 1 to 8.

Images