CN110894904A

CN110894904A - Axial locking device, support assembly and camera equipment

Info

Publication number: CN110894904A
Application number: CN201910926572.5A
Authority: CN
Inventors: 柯学乾; 李晶; 庄唯; 胡雷地; 邵鹏; 王震; 徐韵; 范建根; 王志清; 匡仁军
Original assignee: SUZHOU PUBLIC SECURITY BUREAU; Suzhou Kodak Technology Co Ltd
Current assignee: SUZHOU PUBLIC SECURITY BUREAU; Suzhou Kodak Technology Co Ltd; Suzhou Keda Technology Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-03-20

Abstract

The invention relates to an axial locking device, a bracket component and camera equipment, wherein the axial locking device is sleeved on a pipe body; the axial locking device comprises a pressing ring, a sliding support, a locking handle and an elastic element, wherein the pressing ring and the sliding support are sleeved on the pipe body, the locking handle is arranged between the pressing ring and the sliding support, the elastic element is clamped between the pressing ring, the sliding support and the pipe body, the locking handle pushes the pressing ring and the sliding support to move relatively along the axial direction so as to extrude the elastic element to enable the elastic element to deform in the radial direction and further enable the elastic element to be clamped and fixed on the pipe body. When the elastic element is not compressed, the axial locking device is pushed to move axially along the pipe body through the locking handle, the axial locking device is hinged with the folding supporting legs arranged on the pipe body and the connecting rods between the pipe body and the folding supporting legs, the folding supporting legs can be unfolded and folded, the overall structure of the support component is simpler, the support component is lighter and more portable, and quick and flexible arrangement can be realized.

Description

Axial locking device, support assembly and camera equipment

Technical Field

The invention relates to an axial locking device, a bracket assembly and an image pickup apparatus.

Background

Most of mobile pan-tilt cameras of current market products are generally realized in two modes, one mode is automatic lifting, and the other mode is manual lifting. The automatic lifting adopts a pneumatic type or an electric lifting rod to realize the distribution control of the camera, and the lifting equipment is heavy, heavy by dozens of kilograms, large in volume and inconvenient to carry by a single soldier. Manual formula bracket component adopts screw-thread fit to realize usually, like the liftable dismantlement support that is used for the equipment of making a video recording that chinese patent No. 201420238930.6 disclosed, nevertheless, locks through the hand screw, and the lift process is lengthy, and the lifter wobbling volume is great, is unfavorable for the image recognition of quick cloth accuse and camera.

Disclosure of Invention

The invention aims to provide an axial locking device capable of realizing flexible arrangement of a bracket assembly.

In order to achieve the purpose, the invention provides the following technical scheme: an axial locking device is sleeved on the pipe body; the axial locking device comprises a pressing ring, a sliding support, a locking handle and an elastic element, wherein the pressing ring and the sliding support are sleeved on the pipe body, the locking handle is arranged between the pressing ring and the sliding support, the elastic element is clamped between the pressing ring, the sliding support and the pipe body, and the locking handle pushes the pressing ring and the sliding support to move relatively along the axial direction so as to extrude the elastic element to enable the elastic element to deform in the radial direction and further enable the elastic element to be clamped and fixed on the pipe body.

Furthermore, the locking handle includes the platelike body, in the cam groove that forms on the platelike body and set up and be in the pivot portion of cam groove one side, be formed with in the cam groove to the unequal gear of distance of pivot portion, pivot portion with one of them realization pivot of clamp ring, the support that slides is connected, be provided with on another in clamp ring, the support that slides with the cam groove cooperation just can be in the slave structure of cam groove internal movement.

Further, the locking handle further comprises a handle portion formed by extending from the sheet-shaped body, and the handle portion rotates under the action of external force to drive the sheet-shaped body to rotate around the rotating shaft portion.

Furthermore, a deformation cavity for accommodating the elastic element is formed between the sliding support and the pipe body, an opening is formed in one side of the deformation cavity, and the compression ring covers the opening, partially extends into the deformation cavity and abuts against the elastic element.

Further, the elastic element comprises a contact surface in contact with the pipe body, and the contact surface is flat or wavy.

The invention also provides a support assembly which comprises a pipe body, the axial locking device sleeved on the pipe body and a support seat arranged on the axial locking device.

Furthermore, the supporting seat comprises at least three folding supporting legs, one end of each folding supporting leg is hinged to the axial locking device, the other end of each folding supporting leg is used for abutting against the ground, and a connecting rod is hinged between each folding supporting leg and the pipe body.

Further, a shell is sleeved outside the pipe body, and a containing groove corresponding to the folding supporting leg is formed in the shell, so that the folding supporting leg can be folded outwards.

The invention also provides camera equipment which comprises the bracket component and a camera arranged on the bracket component.

Further, the body includes a plurality of sections, is provided with archimedes spiral line locking cam subassembly on one of them between two sections adjacent bodys, is provided with the spacing ring on the other, wherein, axial locking device installs on the body of lower floor, the camera is installed on the body of superiors.

The invention has the beneficial effects that: the locking handle pushes the compression ring and the sliding support to move relatively along the axial direction so as to enable the elastic element to deform radially, and further locking of the axial locking device on the pipe body is achieved, and when the elastic element is not compressed, the locking handle is pushed to enable the axial locking device to move axially on the pipe body; by applying the axial locking device to the support assembly, the overall structure of the support assembly is simpler, lighter and more portable, and quick and flexible arrangement can be realized; particularly, the axial locking device is combined with the folding supporting leg arranged on the tube body, and the tube body is hinged with the connecting rod, so that the folding supporting leg can be unfolded and folded.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of an image pickup apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the image pickup apparatus of fig. 1 with the housing removed;

fig. 3 is an exploded view of a part of the image pickup apparatus shown in fig. 2;

fig. 4 is a sectional view of a part of the image pickup apparatus shown in fig. 2;

FIG. 5 is an enlarged view of circle A in FIG. 4;

fig. 6 is a schematic view of a portion of the image pickup apparatus shown in fig. 3, in which the locking handle is locked when folded;

FIG. 7 is an enlarged view of circle A in FIG. 6;

fig. 8 is a schematic view of a portion of the image pickup apparatus shown in fig. 3 with the lock handle in an open state when folded;

fig. 9 is an enlarged view of circle a in fig. 8.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 and 2, an image capturing apparatus 100 according to an embodiment of the present invention includes a stand assembly 10 and a camera 20 mounted on the stand assembly 10. The bracket assembly 10 includes a pipe body 1, an axial locking device 2 sleeved on the pipe body 1, and a support base 3 installed on the axial locking device 2. The tube 1 includes several segments, wherein the lowermost tube 1 is called a fixed tube 11, and the other is an elevator tube 12, and the elevator tube 12 can slide relatively to each other to realize the movement between the tubes 1, so as to raise or lower the camera 20. Specifically, one of the two adjacent sections of pipe bodies 1 is provided with an archimedes spiral line locking cam assembly (not shown), and the other is provided with a limiting ring 13, so that locking between the two adjacent lifting pipes 12 can be realized through the limiting ring, the lifting pipes 12 are prevented from being pulled out, the lifting pipes 12 are manually lifted, and can be locked at any position in the stroke, and the height of the lifting rods can be adjusted. In this embodiment, the pipe body 1 is an aluminum pipe. The axial locking device 2 is mounted on the lowermost tube 1 and the camera 20 is mounted on the uppermost tube 1.

Referring to fig. 3 to 5, the axial locking device 2 includes a pressing ring 121 and a sliding support 122 which are sleeved on the fixed tube 11 and are in clearance fit with the fixed tube 11, a locking handle 123 disposed between the pressing ring 121 and the sliding support 122, and an elastic element 124 clamped between the pressing ring 121, the sliding support 122 and the fixed tube 11. The compression ring 121 and the sliding support 122 axially support the elastic element 124 against each other. The locking handle 123 pushes the compression ring 121 and the sliding support 122 to move relatively in the axial direction so as to press the elastic element 124 to deform the elastic element 124 in the radial direction, so that the elastic element 124 is clamped on the fixed pipe 11. It should be noted that, when the compression ring 121 and the sliding support 122 move in the opposite direction in the axial direction, and the force applied to the elastic element 124 by the compression ring 121 and the sliding support 122 is removed, the elastic element 124 is restored to the original state, and the elastic element 124 and the fixed tube 11 are in clearance fit, at this time, the axial locking device 2 can slide in the axial direction of the fixed tube 11 relative to the fixed tube 11.

Specifically, the locking handle 123 includes a sheet 1231, a cam groove 1232 formed in the sheet 1231, and a rotating shaft 1233 provided on one side of the cam groove 1232, in which shift positions with different distances to the rotating shaft 1233 are formed in the cam groove 1232, the rotating shaft 1233 is rotatably connected to one of the clamp ring 121 and the slide holder 122, and the other of the clamp ring 121 and the slide holder 122 is provided with a follower structure 125 which is engaged with the cam groove 1232 and is movable in the cam groove 1232. In this embodiment, the sliding support 122 is provided with a shaft assembly 126 connected to the rotating shaft 1233, and the driven structure 125 is provided on the clamp ring 121. Specifically, the follower structure 125 is a cylindrical body protruding from the outer circumference of the pressing ring 121, the cylindrical body 125 is sleeved with a sliding bearing 127, the sliding bearing 127 and the cylindrical body 125 are fixed by a shaft retaining ring 128, and the sliding bearing 127 is provided on the cylindrical body 125 to enable the movement between the follower structure 125 and the cam groove 1232 to be smoother.

In this embodiment, a deformation cavity 129 is formed between the sliding support 122 and the fixed tube 11 for accommodating the elastic element 124, an opening (not numbered) is formed on one side of the deformation cavity 129, and the pressing ring 121 covers the opening, partially extends into the deformation cavity 129 and abuts against the elastic element 124.

The elastic element 124 is a ring structure, in other embodiments, the elastic element 124 may be a plurality of arc-shaped strip structures with a certain thickness, of course, the elastic element 124 is optimally selected to be a ring-shaped rubber ring, and through the ring structure, the holding force applied by the elastic element 124 to the fixing tube 11 can be better, so that the two are clamped more tightly. The elastic member 124 includes a contact surface 1241 contacting the fixing tube 11, and the contact surface 1241 has a flat or wavy shape, preferably a wavy shape. By providing the contact surface 1241 in a wave shape, it is helpful to increase the amount of deformation of the elastic element, indirectly increasing the frictional force.

Referring to fig. 7 and 9, two shift positions with different distances to the rotating shaft 1233 are formed in the cam groove 1232, and the two shift positions are respectively located at two ends of the cam groove 1232, in this embodiment, the left end of the cam groove 1232 is set as the first shift position 1234, the right end is set as the second shift position 1235, and the distance from the second shift position 1235 to the rotating shaft 1233 is greater than the distance from the rotating shaft 1233 in the first shift position 1234. In this embodiment, the cam groove 1232 is an arc-shaped groove. The cam groove 1232 of the present embodiment is composed of two arc segments, which are divided into a first arc segment (not numbered) and a second arc segment (not numbered), and the end point of the first arc segment is the start point of the second arc segment. The radius of the first arc segment is gradually reduced by taking the rotating shaft part 1233 as the center of a circle (namely, the distance from the starting point of the first arc segment to the rotating shaft part 1233 is greater than the distance from the end point to the rotating shaft part 1233); similarly, the radius of the second arc segment is the same with the rotation axis 1233 as the center (i.e. the distance from the starting point of the second arc segment to the rotation axis 1233 is the same as the distance from the ending point to the rotation axis 1233). The second circular arc segment can realize the self-locking of the locking handle 123. The first gear 1234 is located at the beginning of the first arc segment, and the second gear 1235 is from the end of the first arc segment to the second arc segment. Indeed, in other embodiments, the cam slot 1232 may be a diagonal slot.

For a smoother locking of the axial locking device 2, the plate 1231 comprises two symmetrically arranged along the central axis of the sliding support 122. Specifically, the method comprises the following steps: the locking handle 123 further includes a handle portion extending from the plate 1231, and the handle portion is rotated by an external force to drive the plate 1231 to rotate around the rotation shaft 1233. It should be noted that, in practical use, the two sheets 1231 may not necessarily be symmetrically disposed along the central axis of the sliding support 122, and the two sheets 1231 may be disposed at any position as long as the stress of the compression ring 121 is symmetrical.

The grip portion includes a connecting portion 1236 connecting the two sheets 1231 and a ring portion 1237 formed on one end of the connecting portion 1236, and the two sheets 1231 are connected by the connecting portion 1236 to facilitate one-handed operation.

The support base 3 includes three folding support legs 31, and in other embodiments, the folding support legs 31 may be three or more, and the three or more folding support legs 31 are arranged at equal intervals in the circumferential direction of the fixing tube 11. One end of each folding foot 31 is hinged to the axial locking means 2 and the other end is intended to be held against the ground (not shown). Specifically, the folding supporting foot 31 is hinged on the sliding support 122. A connecting rod 32 is hinged between each folding supporting leg 31 and the fixed tube 11, the connecting rod 32 is connected with the folding supporting legs 31 through a pin shaft 33, the connecting position of the pin shaft 33 is the middle position of the folding supporting legs 31, the connecting rod 32 is also connected with the fixed tube 11 through the pin shaft 33, in order to facilitate assembly, the fixed sleeve is arranged on the fixed tube 11 and is provided with a fixed ring 13, and the connecting rod 32 is connected with the fixed ring 13 through the pin shaft 33, so that the connecting rod 32 is hinged with the fixed tube 11.

Referring to fig. 1 and 2 again, the bottom end of the fixed pipe 11 is further fixedly connected with a fixed support 14 and a housing 15 sleeved on the fixed pipe 11. The housing 15 is provided with a receiving groove 151 corresponding to the folding leg 31 to fold the folding leg 31 outward, and the handle portion can be extended through the receiving groove 151 to facilitate holding and applying force. The housing 15 is connected to the fixed pipe 11 by a connecting piece 16.

The camera device 100 comprises two parts, wherein the first part is formed by adjusting the height of the camera 20 by a plurality of sections of the lifting tube 12, and the second part is formed by folding the supporting frame by the supporting frame assembly 10. Referring to fig. 8 and 9, when the handle portion rotates to the horizontal position, the sliding bearing 127 is located in the first gear 1234, the axial distance between the pressing ring 121 and the sliding support 122 (i.e. the distance from the first gear 1234 to the rotating shaft 1233) is the largest, the gap between the pressing ring 121 and the sliding support 122 is H1, at this time, the elastic element 124 is in the original state, and the pressing ring 121, the sliding support 122, and the fixed tube 11 are in clearance fit, so the axial locking device 2 can slide up and down relative to the fixed tube 11 (i.e. the axial locking device 2 is in the open state), and since the axial locking device 2 can slide relative to the fixed tube 11, when it slides, since the middle position of the folding support foot 31 is connected to the fixed tube 11 by the connecting rod 32, when the sliding axial locking device 2, the folding support foot 31 is unfolded outwards through the accommodating groove 151, the expansion width is related to the sliding distance of the axial locking device 2, and when the axial locking device 2 is slid upward, the folding support leg 31 is retracted, and at this time, the folding support leg 31 is received in the receiving groove 151. Referring to fig. 6 and 7, when the handle portion rotates to the oblique position, the sliding bearing 127 is located in the second shift 1235, the axial distance between the pressing ring 121 and the sliding support (i.e., the distance from the second shift 1235 to the rotating shaft 1233) is the smallest, the gap between the pressing ring 121 and the sliding support 122 is H2, at this time, the elastic element 124 is pressed by the pressing ring 121 and the sliding support 122 (referring to fig. 5), so that the elastic element 124 radially deforms in the deformation cavity 129, and the elastic element 124 has a radial locking effect on the fixed tube 11, so that the axial locking device 2 is immovable relative to the fixed tube 11, and locking is achieved (i.e., the axial locking device 2 is in a locked state), and at this time, the folding support leg 31 is not unfolded or folded.

This camera equipment 100 is when elastic element 124 is not compressed tightly, promote axial locking device 2 along fixed pipe 11 axial displacement through locking handle 123, axial locking device 2 is articulated with folding supporting legs 31 and fixed pipe 11 and the connecting rod 32 between the folding supporting legs 31 of setting on fixed pipe 11, can realize the expansion and fold up of folding supporting legs 31, make bracket component overall structure more simple, it is more lightweight, it is portable, can realize quick and nimble arranging, thereby solve the demand that camera equipment 100 changes the cloth accuse fast, it is firm to place, bear reliably, be applicable to patrol sentry, the individual soldier carries, at district access & exit, the traffic crossing, the more scenes of people's flow such as market, accomplish control and investigation work fast.

Besides the folding or unfolding of the folding support leg 31, in other embodiments, the axial locking device 2 may also be used between two adjacent tubes to realize the connection between the two tubes, and if the axial locking device is used to realize the axial connection between two adjacent tubes, the clamp ring and the sliding support of the axial locking device are respectively connected with the two adjacent tubes.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An axial locking device is characterized in that the axial locking device is sleeved on a pipe body; the axial locking device comprises a pressing ring, a sliding support, a locking handle and an elastic element, wherein the pressing ring and the sliding support are sleeved on the pipe body, the locking handle is arranged between the pressing ring and the sliding support, the elastic element is clamped between the pressing ring, the sliding support and the pipe body, the locking handle pushes the pressing ring and the sliding support to move relatively along the axial direction so as to extrude the elastic element, the elastic element deforms in the radial direction, and the elastic element is clamped on the pipe body.

2. The axial locking device of claim 1, wherein the locking handle comprises a plate-shaped body, a cam groove formed on the plate-shaped body, and a rotating shaft part arranged on one side of the cam groove, wherein gears with different distances to the rotating shaft part are formed in the cam groove, the rotating shaft part is connected with one of the pressing ring and the sliding support in a rotating shaft manner, and the other one of the pressing ring and the sliding support is provided with a driven structure which is matched with the cam groove and can move in the cam groove.

3. The axial locking mechanism of claim 2, wherein said locking knob further comprises a knob portion extending from said plate, said knob portion being rotatable under an external force to drive said plate to rotate about said shaft portion.

4. The axial locking device of claim 1, wherein a deformation cavity for accommodating the elastic element is formed between the sliding support and the tube body, an opening is formed in one side of the deformation cavity, and the compression ring covers the opening, partially extends into the deformation cavity and abuts against the elastic element.

5. The axial locking device of claim 1, wherein said resilient member is an annular structure, said resilient member including a contact surface for contacting said tubular body, said contact surface being flat or undulating.

6. A support assembly comprising a tubular body, an axial locking device according to any one of claims 1 to 5 fitted over the tubular body, and a support seat mounted on the axial locking device.

7. The bracket assembly of claim 6, wherein the support base comprises at least three folding support legs, one end of each folding support leg is hinged to the axial locking device or the sliding support base, the other end of each folding support leg is used for supporting the ground, and a connecting rod is hinged between each folding support leg and the pipe body.

8. The support assembly of claim 7, wherein the housing is sleeved outside the tube body, and the housing is provided with a receiving groove corresponding to the folding supporting leg so that the folding supporting leg can be folded outwards; the bottom of body still fixedly connected with fixing support.

9. An image pickup apparatus comprising the carriage assembly according to any one of claims 6 to 8 and a camera mounted on the carriage assembly.

10. An image pickup apparatus according to claim 9, wherein said tubular bodies comprise a plurality of segments, and an archimedean spiral locking cam unit is provided on one of the adjacent segments between the tubular bodies, and a stopper ring is provided on the other, wherein said axial locking means is mounted on the lowermost tubular body, and said camera is mounted on the uppermost tubular body.