CN216526466U - Self-locking mechanism for security lens - Google Patents
Self-locking mechanism for security lens Download PDFInfo
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- CN216526466U CN216526466U CN202123175010.3U CN202123175010U CN216526466U CN 216526466 U CN216526466 U CN 216526466U CN 202123175010 U CN202123175010 U CN 202123175010U CN 216526466 U CN216526466 U CN 216526466U
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- bracket
- fixing piece
- supporting plate
- fixing
- gear
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Abstract
The utility model discloses a self-locking mechanism for a security lens, which comprises a fixed bracket, a stepping motor and a gear fixing piece, wherein the fixed bracket comprises a bracket bottom plate, a bracket left side supporting plate, a bracket right side supporting plate and a bracket rear side supporting plate; a movable rotating shaft is arranged between the left supporting plate and the right supporting plate of the bracket, the gear fixing piece comprises a fixing piece sleeve part in a sleeve shape, a gear fixing deflector rod which extends outwards in the radial direction is arranged on the outer circumferential surface of the fixing piece sleeve part, the movable rotating shaft is embedded in a fixing piece center hole of the fixing piece sleeve part, and the movable rotating shaft is in interference fit with the fixing piece center hole; one end part of a fixing part sleeve part of the gear fixing part is sleeved and clamped with a helical gear, and a power output shaft of the stepping motor is connected with a driving worm which is meshed with the helical gear. Through the structural design, the utility model has the advantages of novel design, compact structure and good stability and reliability.
Description
Technical Field
The utility model relates to the technical field of security lenses, in particular to a self-locking mechanism for a security lens.
Background
As a main device for security monitoring, security monitoring cameras are widely used in daily life of people; for the existing security monitoring camera, the zooming action of the lens is generally driven by a stepping speed reduction motor.
For the security lens, in the working process, sometimes it is necessary to fix the security lens at a certain specific position angle by self-locking, and the self-locking action of the security lens is generally controlled by a corresponding self-locking mechanism.
It should be pointed out that, for the existing security lens self-locking mechanism, the defects of unreasonable design and poor stability and reliability generally exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a self-locking mechanism for a security lens, which has the advantages of novel design, compact structure, good stability and reliability, and overcomes the defects of the prior art.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A self-locking mechanism for a security lens comprises a fixed bracket, a stepping motor and a gear fixing piece, wherein the fixed bracket comprises a bracket bottom plate which is horizontally and transversely arranged, a bracket left side supporting plate which vertically extends upwards is arranged at the edge part of the left end of the bracket bottom plate, a bracket right side supporting plate which vertically extends upwards is arranged at the edge part of the right end of the bracket bottom plate, a bracket rear side supporting plate which vertically extends upwards is arranged at the edge part of the rear end of the bracket bottom plate, the bracket left side supporting plate and the bracket right side supporting plate are oppositely arranged, and the stepping motor is screwed and fixed on the bracket rear side supporting plate through a locking screw;
a movable rotating shaft is arranged between the bracket left supporting plate and the bracket right supporting plate, the left end part of the movable rotating shaft is connected with the bracket left supporting plate, and the right end part of the movable rotating shaft is connected with the bracket right supporting plate;
the gear fixing part comprises a fixing part sleeve part in a sleeve shape, a gear fixing deflector rod which extends outwards in the radial direction is arranged on the outer circumferential surface of the fixing part sleeve part, a fixing part central hole which completely penetrates through the core part of the fixing part sleeve part along the axis direction is formed in the core part of the fixing part sleeve part, the movable rotating shaft is embedded in the fixing part central hole of the fixing part sleeve part and is in interference fit with the fixing part central hole;
one end part of a fixing piece sleeve part of the gear fixing piece is sleeved and clamped with a helical gear, and a power output shaft of the stepping motor is connected with a driving worm which is meshed with the helical gear.
The end part of the fixing piece sleeve part is inserted in the central hole of the helical gear in an embedded mode, and the end part of the fixing piece sleeve part is in interference fit with the central hole of the helical gear.
The outer circumferential surface of the fixing part sleeve part is also provided with a limit stop which protrudes and extends towards the opposite side of the gear fixing deflector rod;
the upper surface of the bracket bottom plate is screwed and fastened with a vertically arranged positioning column through a locking screw, and the positioning column is positioned on the front end side of the limit stop.
The fixing piece sleeve portion, the gear fixing deflector rod and the limit stop are of an integrated structure.
Wherein, the bracket bottom plate, bracket left side backup pad, bracket right side backup pad bracket rear side backup pad is structure as an organic whole.
The bracket comprises a bracket left supporting plate, a bracket right supporting plate, a left bearing, a right bearing, a left bearing retaining shoulder, a right bearing retaining shoulder and a movable rotating shaft, wherein the bracket left supporting plate is provided with a left supporting plate through hole which completely penetrates from left to right and is axially aligned with the movable rotating shaft;
the right side support plate of the bracket is provided with a right side support plate through hole which is completely penetrated left and right and is axially aligned with the movable rotating shaft, the right surface of the right side support plate of the bracket is fixedly provided with a fixed bottom cover, a core part of the fixed bottom cover is provided with a bottom cover through hole which is completely penetrated left and right and is axially aligned with the right side support plate through hole, and a right side bearing is embedded in the bottom cover through hole; the right surface of the fixed bottom cover is tightly provided with an auxiliary elastic sheet which elastically presses against the right bearing towards the left side;
the left bearing is provided with a left blind hole which is opened towards the right, the right bearing is provided with a right blind hole which is opened towards the left, a left ball is embedded in the left blind hole, and a right ball is embedded in the right blind hole; the left end of activity pivot has seted up towards left side open-ended left side bell mouth, and the right end of activity pivot has seted up towards right side open-ended right side bell mouth, and the left end of activity pivot imbeds to the left side blind hole of left side bearing and the inner wall contact of left side ball and left side bell mouth, and the right end of activity pivot imbeds to the right side blind hole of right side bearing and the inner wall contact of right side ball and right side bell mouth.
The auxiliary elastic sheet comprises an elastic sheet fixing part which is fastened on the right surface of the fixed bottom cover;
the elastic sheet fixing part is provided with an elastic contact part which extends into the through hole of the bottom cover and is abutted against the right bearing, and the elastic contact part and the elastic sheet fixing part are of an integral structure.
The utility model has the beneficial effects that: the utility model relates to a self-locking mechanism for a security lens, which comprises a fixed bracket, a stepping motor and a gear fixing piece, wherein the fixed bracket comprises a bracket bottom plate which is horizontally and transversely arranged, the edge part of the left end of the bracket bottom plate is provided with a bracket left side supporting plate which vertically extends upwards, the edge part of the right end of the bracket bottom plate is provided with a bracket right side supporting plate which vertically extends upwards, the edge part of the rear end of the bracket bottom plate is provided with a bracket rear side supporting plate which vertically extends upwards, the bracket left side supporting plate and the bracket right side supporting plate are oppositely arranged, and the stepping motor is screwed and fixedly arranged on the bracket rear side supporting plate through a locking screw; a movable rotating shaft is arranged between the bracket left supporting plate and the bracket right supporting plate, the left end part of the movable rotating shaft is connected with the bracket left supporting plate, and the right end part of the movable rotating shaft is connected with the bracket right supporting plate; the gear fixing part comprises a fixing part sleeve part in a sleeve shape, a gear fixing deflector rod which extends outwards in the radial direction is arranged on the outer circumferential surface of the fixing part sleeve part, a fixing part central hole which completely penetrates through the core part of the fixing part sleeve part along the axis direction is formed in the core part of the fixing part sleeve part, the movable rotating shaft is embedded in the fixing part central hole of the fixing part sleeve part and is in interference fit with the fixing part central hole; one end part of a fixing piece sleeve part of the gear fixing piece is sleeved and clamped with a helical gear, and a power output shaft of the stepping motor is connected with a driving worm which is meshed with the helical gear. Through the structural design, the utility model has the advantages of novel design, compact structure, good stability and reliability.
Drawings
The utility model will be further described with reference to the drawings to which, however, the embodiments shown in the drawings do not constitute any limitation.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of another embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of the present invention.
Fig. 1 to 3 include:
1-fixed bracket 11-bracket bottom plate
12 bracket left side support plate 121 left side support plate through hole
13-bracket Right side support plate 131-Right side support plate through hole
14-bracket rear side support plate 2-step motor
3-gear fixing member 31-fixing member sleeve portion
32-gear fixing shift lever 33-fixing piece central hole
34-limit stop 4-movable rotating shaft
41-left side taper hole 42-right side taper hole
5-helical gear 6-driving worm
7-locating column 81-left side bearing
811-bearing shoulder 812-left blind hole
82-fixed bottom cover 821-bottom cover through hole
83-Right side bearing 831-Right side Blind hole
84-auxiliary shrapnel 841-shrapnel fixing part
842-elastic contact portion 851-left side ball
852 — right ball.
Detailed Description
The present invention will be described below with reference to specific embodiments.
As shown in fig. 1 to 3, a self-locking mechanism for security lens, it is including fixed bolster 1, step motor 2, gear fixing piece 3, fixed bolster 1 is including being horizontal transverse arrangement's bracket bottom plate 11, bracket bottom plate 11's left end edge is provided with bracket left side backup pad 12 of vertical extension up, bracket bottom plate 11's right-hand member edge is provided with bracket right side backup pad 13 of vertical extension up, bracket bottom plate 11's rear end edge is provided with bracket rear side backup pad 14 of vertical extension up, bracket left side backup pad 12, bracket right side backup pad 13 is just to arranging, step motor 2 is through locking screw spiral shell dress fastening in bracket rear side backup pad 14.
Further, a movable rotating shaft 4 is arranged between the bracket left supporting plate 12 and the bracket right supporting plate 13, the left end of the movable rotating shaft 4 is connected with the bracket left supporting plate 12, and the right end of the movable rotating shaft 4 is connected with the bracket right supporting plate 13.
Furthermore, the gear fixing member 3 includes a fixing member sleeve portion 31 in a sleeve shape, a gear fixing shift lever 32 extending radially outward is disposed on an outer circumferential surface of the fixing member sleeve portion 31, a fixing member center hole 33 completely penetrating along an axial direction is disposed on a core portion of the fixing member sleeve portion 31, the movable rotating shaft 4 is inserted into the fixing member center hole 33 of the fixing member sleeve portion 31, and the movable rotating shaft 4 and the fixing member center hole 33 are in interference fit; .
In other words, a helical gear 5 is fitted and clamped at one end of the fixing member sleeve portion 31 of the gear fixing member 3, a driving worm 6 is connected to a power output shaft of the stepping motor 2, and the driving worm 6 is engaged with the helical gear 5. Specifically, the helical gear 5 of the present invention may be fixed to the end of the fixing member sleeve portion 31 by being inserted and clamped in the following manner: the end of the fixing member sleeve portion 31 is inserted into the central hole of the helical gear 5, and the end of the fixing member sleeve portion 31 is in interference fit with the central hole of the helical gear 5.
In addition, as shown in fig. 1 to 3, the outer circumferential surface of the fixing member sleeve portion 31 is further provided with a limit stopper 34 protruding and extending toward the opposite side of the gear fixing lever 32; the upper surface of bracket bottom plate 11 is through the inherent reference column 7 that is vertical arrangement of locking screw spiral shell dress, and reference column 7 is located the front end side of limit stop 34.
For the gear fixing member 3 of the present invention, it may adopt an integrated structure design, specifically: the fixing piece sleeve part 31, the gear fixing deflector rod 32 and the limit stop 34 are of an integral structure; of course, the gear fixing member 3 of the present invention may also adopt a split structure design, that is, the gear fixing shift lever 32 and the limit stop 34 of the present invention may be assembled to the fixing member sleeve portion 31 in a screw manner.
In addition, the fixing bracket 1 of the present invention may be designed in an integrated structure, or in a split structure; for the fixing bracket 1 with an integrated structure design, a bracket bottom plate 11, a bracket left side supporting plate 12, a bracket right side supporting plate 13 and a bracket rear side supporting plate 14 are integrated; for the fixing bracket 1 with the split structure design, the bracket left side supporting part, the bracket right side supporting plate 13 and the bracket rear side supporting plate 14 can be assembled on the corresponding edge parts of the bracket bottom plate 11 in a screw connection mode.
In the process of realizing the self-locking action of the security lens, the step motor 2 drives the helical gear 5 to rotate through the driving worm 6, and the helical gear 5 drives the fixing part sleeve part 31 of the gear fixing part 3 to rotate, so that the gear fixing deflector rod 32 and the limit stop 34 of the gear fixing part 3 rotate; when step motor 2 rotated in place through drive worm 6, helical gear 5 drive gear mounting 3, limit stop 34 supported in reference column 7 to carry out spacingly to gear mounting 3 through reference column 7, and gear fixing driving lever 32 of gear mounting 3 supported the gear structure of security protection camera lens, in order to realize the auto-lock of security protection camera lens.
It should be emphasized that, the stepping motor 2 of the present invention drives the movable rotating shaft 4 to rotate by means of meshing the driving worm 6 and the helical gear 5, and the driving worm 6 and the movable rotating shaft 4 are vertically arranged in a staggered manner, i.e. the present invention can realize staggered shaft transmission, and the transmission manner can effectively reduce the installation space and make the whole structure more compact. In addition, for the transmission structure consisting of the driving worm 6 and the helical gear 5, the transmission structure has good self-locking performance, so that the problem of return stroke difference in the transmission process can be effectively reduced, short plates of a straight gear and other transmission structures are effectively made up, and the stability and the reliability are better.
By combining the above conditions, the utility model has the advantages of novel design, compact structure, good stability and reliability.
In a preferred embodiment, as shown in fig. 1 to 3, the bracket left support plate 12 is opened with a left support plate through hole 121 completely penetrating left and right and axially aligned with the movable rotating shaft 4, the left bearing 81 is fitted in the left support plate through hole 121, the left bearing 81 is provided with a bearing shoulder 811, and the bearing shoulder 811 of the left bearing 81 abuts against the right surface of the bracket left support plate 12.
In addition, the bracket right side support plate 13 is provided with a right side support plate through hole 131 which completely penetrates from left to right and is axially aligned with the movable rotating shaft 4, the right surface of the bracket right side support plate 13 is fixedly provided with a fixed bottom cover 82, the core part of the fixed bottom cover 82 is provided with a bottom cover through hole 821 which completely penetrates from left to right and is axially aligned with the right side support plate through hole 131, and a right side bearing 83 is embedded in the bottom cover through hole 821; the right surface of the fixed bottom cover 82 is tightly provided with an auxiliary spring piece 84, and the auxiliary spring piece 84 elastically presses the right bearing 83 towards the left side.
Furthermore, the left bearing 81 is provided with a left blind hole 812 which is opened towards the right, the right bearing 83 is provided with a right blind hole 831 which is opened towards the left, a left ball 851 is embedded in the left blind hole 812, and a right ball 852 is embedded in the right blind hole 831; the left end of activity pivot 4 has seted up towards left side open-ended left side bell mouth 41, and the right end of activity pivot 4 has seted up towards right side open-ended right side bell mouth 42, and the left end of activity pivot 4 is embedded into in the left side blind hole 812 of left side bearing 81 and left side ball 851 and the inner wall contact of left side bell mouth 41, and the right end of activity pivot 4 is embedded into in the right side blind hole 831 of right side bearing 83 and the inner wall contact of right side ball 852 and right side bell mouth 42.
It should be noted that, for the auxiliary spring plate 84 of the present invention, it includes a spring plate fixing portion 841, the spring plate fixing portion 841 is fastened to the right surface of the fixed bottom cover 82; the elastic sheet fixing portion 841 is provided with an elastic contact portion 842 which extends into the bottom cover through hole 821 and is abutted against the right side bearing 83, and the elastic contact portion 842 and the elastic sheet fixing portion 841 are integrated into a whole structure.
For the movable rotating shaft 4 of the present invention, the left end of the movable rotating shaft 4 is mounted on the bracket left support plate 12 through a bearing assembly composed of a left bearing 81 and a left ball 851, and the right end of the movable rotating shaft 4 is mounted on the bracket right support plate 13 through a bearing assembly composed of a right bearing 83, a fixed bottom cover 82, an auxiliary spring 84 and a right roller. In addition, the movable rotating shaft 4 of the present invention is pressed toward the left side by the auxiliary elastic sheet 84, and the elastic pressing structure design can effectively absorb the axial gap generated in the transmission and effectively reduce the noise generated in the transmission.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (7)
1. The utility model provides a self-locking mechanism for security protection camera lens which characterized in that: the gear fixing device comprises a fixing bracket (1), a stepping motor (2) and a gear fixing piece (3), wherein the fixing bracket (1) comprises a bracket bottom plate (11) which is horizontally and transversely arranged, a bracket left side supporting plate (12) which vertically extends upwards is arranged at the edge part of the left end of the bracket bottom plate (11), a bracket right side supporting plate (13) which vertically extends upwards is arranged at the edge part of the right end of the bracket bottom plate (11), a bracket rear side supporting plate (14) which vertically extends upwards is arranged at the edge part of the rear end of the bracket bottom plate (11), the bracket left side supporting plate (12) and the bracket right side supporting plate (13) are oppositely arranged, and the stepping motor (2) is screwed and fixedly arranged on the bracket rear side supporting plate (14) through a locking screw;
a movable rotating shaft (4) is arranged between the bracket left side supporting plate (12) and the bracket right side supporting plate (13), the left end part of the movable rotating shaft (4) is connected with the bracket left side supporting plate (12), and the right end part of the movable rotating shaft (4) is connected with the bracket right side supporting plate (13);
the gear fixing piece (3) comprises a fixing piece sleeve part (31) in a sleeve shape, a gear fixing deflector rod (32) which extends outwards in the radial direction is arranged on the outer circumferential surface of the fixing piece sleeve part (31), a fixing piece central hole (33) which completely penetrates along the axial direction is formed in the core part of the fixing piece sleeve part (31), the movable rotating shaft (4) is embedded in the fixing piece central hole (33) of the fixing piece sleeve part (31), and the movable rotating shaft (4) is in interference fit with the fixing piece central hole (33);
one end part of a fixing piece sleeve part (31) of the gear fixing piece (3) is sleeved and clamped with a helical gear (5), a power output shaft of the stepping motor (2) is connected with a driving worm (6), and the driving worm (6) is meshed with the helical gear (5).
2. The self-locking mechanism for the security lens according to claim 1, characterized in that: the end part of the fixing piece sleeve part (31) is inserted in the central hole of the helical gear (5), and the end part of the fixing piece sleeve part (31) is in interference fit with the central hole of the helical gear (5).
3. The self-locking mechanism for the security lens according to claim 1, characterized in that: the outer circumferential surface of the fixing piece sleeve part (31) is also provided with a limit stop (34) which protrudes and extends towards the opposite side of the gear fixing deflector rod (32);
the upper surface of the bracket bottom plate (11) is screwed and tightly fixed with a positioning column (7) which is vertically arranged through a locking screw, and the positioning column (7) is positioned at the front end side of the limit stop (34).
4. The self-locking mechanism for the security lens according to claim 3, wherein: the fixing piece sleeve part (31), the gear fixing deflector rod (32) and the limit stop (34) are of an integral structure.
5. The self-locking mechanism for the security lens according to claim 1, characterized in that: the bracket is characterized in that the bracket bottom plate (11), the bracket left side supporting plate (12), the bracket right side supporting plate (13) and the bracket rear side supporting plate (14) are of an integral structure.
6. The self-locking mechanism for the security lens according to claim 1, characterized in that: the bracket left side support plate (12) is provided with a left side support plate through hole (121) which completely penetrates from left to right and is axially aligned with the movable rotating shaft (4), a left side bearing (81) is embedded in the left side support plate through hole (121), the left side bearing (81) is provided with a bearing blocking shoulder (811), and the bearing blocking shoulder (811) of the left side bearing (81) is abutted to the right surface of the bracket left side support plate (12);
a right support plate through hole (131) which completely penetrates from left to right and is axially aligned with the movable rotating shaft (4) is formed in the bracket right support plate (13), a fixed bottom cover (82) is tightly installed on the right surface of the bracket right support plate (13), a bottom cover through hole (821) which completely penetrates from left to right and is axially aligned with the right support plate through hole (131) is formed in a core part of the fixed bottom cover (82), and a right bearing (83) is embedded in the bottom cover through hole (821); an auxiliary elastic sheet (84) is fixedly arranged on the right surface of the fixed bottom cover (82), and the auxiliary elastic sheet (84) elastically presses against the right bearing (83) towards the left side;
the left bearing (81) is provided with a left blind hole (812) which is opened towards the right side, the right bearing (83) is provided with a right blind hole (831) which is opened towards the left side, a left ball (851) is embedded in the left blind hole (812), and a right ball (852) is embedded in the right blind hole (831); the left end of activity pivot (4) is seted up towards left side open-ended left side bell mouth (41), the right end of activity pivot (4) is seted up towards right side open-ended right side bell mouth (42), the left end of activity pivot (4) is embedded into in left side blind hole (812) of left side bearing (81) and the inner wall contact of left side ball (851) and left side bell mouth (41), the right end of activity pivot (4) is embedded into in right side blind hole (831) of right side bearing (83) and the inner wall contact of right side ball (852) and right side bell mouth (42).
7. The self-locking mechanism for the security lens according to claim 6, wherein: the auxiliary elastic sheet (84) comprises an elastic sheet fixing part (841), and the elastic sheet fixing part (841) is fastened on the right surface of the fixed bottom cover (82);
the elastic sheet fixing part (841) is provided with an elastic contact part (842) which extends into the bottom cover through hole (821) and is abutted to the right side bearing (83), and the elastic contact part (842) and the elastic sheet fixing part (841) are of an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175010.3U CN216526466U (en) | 2021-12-17 | 2021-12-17 | Self-locking mechanism for security lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175010.3U CN216526466U (en) | 2021-12-17 | 2021-12-17 | Self-locking mechanism for security lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216526466U true CN216526466U (en) | 2022-05-13 |
Family
ID=81498318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123175010.3U Active CN216526466U (en) | 2021-12-17 | 2021-12-17 | Self-locking mechanism for security lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216526466U (en) |
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2021
- 2021-12-17 CN CN202123175010.3U patent/CN216526466U/en active Active
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