CN114719133A

CN114719133A - Protective structure of network dome camera

Info

Publication number: CN114719133A
Application number: CN202210157588.6A
Authority: CN
Inventors: 史建如; 许科达
Original assignee: Ningbo Shuodi Intelligent Technology Co ltd
Current assignee: Ningbo Shuodi Intelligent Technology Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-07-08

Abstract

The invention relates to the technical field of cameras and discloses a protective structure of a network dome camera, which comprises a fixed support, a camera fixing seat and a supporting plate, wherein the camera fixing seat is positioned at the lower side of the fixed support and is rotationally connected with the fixed support, one end of the fixed support is provided with a limiting seat, a first belt pulley and a second belt pulley are arranged in the fixed support, and the limiting seat is rotationally connected with the fixed support. According to the invention, the fixed support with the camera fixing seat and the limiting seat is arranged, the camera fixing seat and the limiting seat are in transmission connection through the belt and the belt pulley, the limiting sleeve is arranged on the outer side of the limiting seat, the limiting sleeve can limit the rotation of the limiting seat, the adjustment of the limiting seat and the camera fixing seat can be conveniently completed only through the adjusting assembly matched with the limiting seat, and the protection performance is higher.

Description

Protective structure of network dome camera

Technical Field

The invention relates to the technical field of cameras, in particular to a protective structure of a network dome camera.

Background

A dome camera, as the name implies, is shaped as a hemisphere, named only for the shape. The existing dome camera mainly has two fixing modes, one mode is that the dome camera is directly fixed through a screw, and the angle of the dome camera is adjusted by taking down the screw and then adjusting the dome camera; one is that fix dome camera through swing joint's mode, and dome camera passes through other devices such as pivot and is connected with fixed equipment, and the benefit is that the angle of dome camera that can be convenient is adjusted.

When the hemisphere camera is movably installed in the monitoring position, although the angle adjustment is convenient, most hemisphere cameras do not have a locking protection mechanism, so that the hemisphere camera can be adjusted conveniently no matter by an operator or a lawless person, in the process of practical use, the angle of the hemisphere camera can be adjusted easily by the lawless person, the hemisphere camera can lose effect, the place needing to be monitored cannot be effectively monitored, and therefore the hemisphere camera with the protection structure is needed to solve the problem.

Disclosure of Invention

The invention provides a protective structure of a network dome camera, which has the advantages that the protective structure can be adjusted only by a specific adjusting device and is not easy to be interfered, and the problem that the dome camera can be conveniently adjusted by operators or lawbreakers in the background art is solved.

The invention provides the following technical scheme: a protective structure of a network dome camera comprises a fixed support, a camera fixing seat and a supporting plate, wherein the camera fixing seat is positioned on the lower side of the fixed support, the camera fixing seat is rotatably connected with the fixed support, a limiting seat is arranged at one end of the fixed support, a first belt pulley and a second belt pulley are arranged inside the fixed support, the limiting seat is rotatably connected with the fixed support, the first belt pulley is fixedly connected with the camera fixing seat, the second belt pulley is fixedly connected with the limiting seat, and the second belt pulley is in transmission connection with the first belt pulley through a belt;

the outside cover of spacing seat is equipped with the stop collar, the one end of stop collar with fixing support fixed connection, just the inboard of stop collar is equipped with the spacing recess of a plurality of, be equipped with the fixed slot in the spacing seat, just be equipped with the stopper of a plurality of difference in height in the fixed slot, the one end of stopper pass through spacing spring with spacing seat elastic connection, it is right to be equipped with in the backup pad spacing seat carries out the adjusting part who adjusts. When the adjustable limiting seat is used, the limiting seat can be conveniently adjusted only through the adjusting component matched with the limiting seat, and the adjustable limiting seat has good protection capability.

As an alternative of the protective structure of the network dome camera, the invention provides that: the adjusting component comprises ejector rods with different lengths, the ejector rods and the limiting blocks are in one-to-one correspondence, and one ends of the ejector rods stretch into the fixing grooves and are abutted to the limiting blocks. The position of stopper is different, consequently needs the ejector pin of different length just can with stopper propelling movement to preset position to remove the restriction of stop collar to spacing seat, the protectiveness is better.

As an alternative of the protective structure of the network dome camera, the invention provides that: the downside of stopper is equipped with the hypotenuse, just the upside of stopper is equipped with the spacing post of second, the one end of stopper is equipped with first spacing post. The first limiting column and the second limiting column can limit the movement of the limiting block.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: one end of the limiting seat is provided with a first limiting groove, a plurality of first limiting plates are arranged in the first limiting groove, the first limiting plates are elastically connected with the limiting seat through spring pieces, the first limiting plates are abutted against the first limiting columns, and one sides, far away from the first limiting columns, of the first limiting plates are provided with first limiting teeth. The first limiting plate is abutted against the first limiting column, and the limiting block and the first limiting column need to be moved before the first limiting plate can be moved.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: the limiting seat is provided with a first limiting groove, one end of the limiting seat, which is far away from the first limiting groove, is provided with a first limiting plate, the first limiting plate is positioned in the fixing groove, the first limiting plate is elastically connected with the limiting seat through a first spring, the first limiting plate is abutted against the first limiting column, and one side, which is far away from the first limiting column, of the first limiting plate is also provided with a bevel edge. The second limiting plate is abutted against the second limiting column, and the second limiting plate can be moved firstly if the second limiting column and the limiting block are required to be moved.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: the limiting seat is provided with a limiting rod, the limiting rod is elastically connected with the limiting seat through a second spring, the limiting rod is provided with a first limiting convex rib and a second limiting convex rib, the first limiting convex rib is in a round table shape, and the first limiting convex rib is abutted against the first limiting teeth;

the position and the number of the second limiting convex rib correspond to those of the second limiting plate one by one, an inclined plane is arranged on the outer side of the second limiting convex rib, the second limiting convex rib is annularly distributed on the limiting rod, and the second limiting convex rib is abutted to the second limiting plate. The limiting rod can play a spacing effect to first limiting plate and second limiting plate, adjusts the limiting rod, just can remove the restriction of first limiting plate, second limiting plate to the stopper, and then just can adjust spacing seat, further improvement the protective capacities of spacing seat.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: an adjusting rod is further arranged at the supporting plate, and a magnetic column is arranged at one end of the adjusting rod.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: and the end part of the limiting rod is provided with a slot matched with the magnetic column. The limiting rod and the adjusting rod are adsorbed together through the magnetic column, and the disassembly and the installation are convenient.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: the utility model discloses a portable electronic device, including regulation pole, backup pad, regulation pole, one end of support pole is equipped with the confession in the backup pad the through-hole that the pole passed, the afterbody of adjusting the pole is equipped with the handle, just be equipped with spacing branch on hand, the one end of spacing branch with the backup pad is contradicted. The existence of the limiting supporting rod enables the adjusting of the adjusting rod to be more convenient.

As an alternative to the protection structure of the network dome camera according to the present invention, wherein: the handle pass through the screw thread with adjust the pole and can dismantle the connection, it is convenient to dismantle, maintains simply.

The invention has the following beneficial effects:

1. this protective structure of network hemisphere camera, have the fixed bearing of camera fixing base and spacing seat through the setting, connect through belt and belt pulley transmission between camera fixing base and the spacing seat, be equipped with the stop collar in the outside of spacing seat, the stop collar can play the limiting displacement to the rotation of spacing seat, be equipped with adjusting part in the backup pad, cooperate with spacing seat through adjusting part, after adjusting part pegs graft in the spacing seat, can relieve the restriction of stop collar to spacing seat, and then make spacing seat can the free rotation, when spacing seat rotates, just can accomplish the regulation of camera fixing base, when using like this, only through having the adjusting part with spacing seat looks adaptation, just can be convenient accomplish the regulation of spacing seat and camera fixing base, higher protectiveness has.

2. The protective structure of the network hemisphere camera is characterized in that a plurality of limiting blocks with different heights are arranged in a limiting seat, the limiting blocks are elastically connected with the limiting seat through limiting springs, under the normal condition, one end of each limiting block penetrates through the limiting seat and is inserted into a limiting groove on the inner side of the limiting sleeve, so that the limiting seat cannot rotate under the action of the limiting sleeve and the limiting blocks, an adjusting assembly consists of a plurality of ejector rods with different lengths, the ejector rods are abutted against the limiting blocks after being inserted into the limiting seat, the limiting blocks can move towards the inner side of the limiting seat under the pushing of the ejector rods, the limiting blocks cannot be clamped with the limiting sleeves, the limiting seat can normally move, when the protective structure is used, the limiting seats are adjusted without the aid of adjusting assemblies matched with the limiting seats, the limiting blocks with different heights need to be adjusted at the same time, and the difficulty is greatly increased, the protection performance is better.

3. The first limiting plate is provided with a first limiting tooth, the first limiting plate can move and is elastically connected with the limiting seat through a spring piece, the second limiting plate is further arranged in the limiting seat and can also move and is elastically connected with the limiting seat through a first spring, the first limiting plate is abutted against the first limiting column, the second limiting plate is abutted against the second limiting column in the actual use process, the limiting block can be jacked to move when the ejector rod is inserted into the limiting seat, the limiting block can be limited by the first limiting plate and the second limiting plate after being abutted against the ejector rod, and the limiting block can move when wanting to be relieved through the limiting rod, The second limiting plate limits the limiting block, then the limiting block can move, and the protection effect is better.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of the spacing seat and the spacing sleeve of the invention.

Fig. 3 is a schematic structural view of the limiting seat and the limiting sleeve of the present invention.

Fig. 4 is a schematic view of a connection structure of an adjusting rod and a limit rod according to the present invention.

Fig. 5 is a schematic view of a stop lever according to the present invention.

Fig. 6 is a schematic structural diagram of the adjusting assembly of the present invention.

Fig. 7 is a schematic view of a limiting block structure of the present invention.

In the figure: 1. a fixed support; 2. a camera fixing base; 201. a top rod; 202. adjusting a rod; 203. a magnetic column; 204. a handle; 205. a limit strut; 3. a support plate; 4. a limiting seat; 401. fixing grooves; 402. a limiting block; 403. a limiting spring; 404. a second limit post; 405. a first limit post; 406. a first limit groove; 5. a first pulley; 6. a second pulley; 7. a belt; 8. a limiting sleeve; 801. a limiting groove; 9. a first limit plate; 901. a first limit tooth; 10. a spring plate; 11. a second limiting plate; 12. a first spring; 13. a limiting rod; 1301. a first limit convex rib; 1302. a second limit convex rib; 1303. a slot; 14. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The embodiment aims to solve the problem of how to limit the camera fixing seat 2, please refer to fig. 1 to 4, the invention provides a protective structure of a network dome camera, which comprises a fixing support 1, a camera fixing seat 2 and a support plate 3, wherein the camera fixing seat 2 is positioned at the lower side of the fixing support 1, the camera fixing seat 2 is rotatably connected with the fixing support 1, one end of the fixing support 1 is provided with a limiting seat 4, a first belt pulley 5 and a second belt pulley 6 are arranged inside the fixing support 1, the limiting seat 4 is rotatably connected with the fixing support 1, the first belt pulley 5 is fixedly connected with the camera fixing seat 2, the second belt pulley 6 is fixedly connected with the limiting seat 4, and the second belt pulley 6 is in transmission connection with the first belt pulley 5 through a belt 7;

the outside cover of spacing seat 4 is equipped with stop collar 8, the one end and the 1 fixed connection of fixing support of stop collar 8, and the inboard of stop collar 8 is equipped with the spacing recess 801 of a plurality of, is equipped with fixed slot 401 in the spacing seat 4, and is equipped with the stopper 402 of a plurality of difference in height in the fixed slot 401, and the one end of stopper 402 is passed through spacing spring 403 and spacing 4 elastic connection, is equipped with the adjusting part that is used for adjusting spacing seat 4 in the backup pad 3.

The camera fixing seat 2 is used for fixing a camera, the whole camera fixing seat 2 can rotate, two belt pulleys are arranged in the fixing support 1, the belt pulleys are in transmission connection through a belt 7, one belt pulley is fixedly connected with the limiting seat 4, the other belt pulley is fixedly connected with the camera fixing seat 2, when the camera fixing seat 2 needs to be adjusted, only the limiting seat 4 needs to be rotated, the two belt pulleys rotate under the driving of the limiting seat 4, so that the camera fixing seat 2 is driven to rotate, the limiting sleeve 8 is arranged on the outer side of the limiting seat 4, the limiting sleeve 8 can play a limiting role in the rotation of the limiting seat 4, an adjusting component is arranged on the supporting plate 3, the adjusting component is matched with the limiting seat 4 through the adjusting component, after the adjusting component is inserted into the limiting seat 4, the limitation of the limiting sleeve 8 on the limiting seat 4 can be removed, and the limiting seat 4 can further freely rotate, when spacing seat 4 rotated, could accomplish the regulation of camera fixing base 2, like this when using, only through having the adjusting part with spacing seat 4 looks adaptation, could be convenient accomplish the regulation of spacing seat 4 and camera fixing base 2, had higher protectiveness.

Example 2

In this embodiment, it is intended to promote to solve the problem of how to adjust the limiting seat 4, and this embodiment is explained on the basis of embodiment 1, specifically, please refer to fig. 1, fig. 4 and fig. 6, the adjusting assembly includes a plurality of push rods 201 with different lengths, the push rods 201 and the limiting block 402 are in a one-to-one correspondence relationship, and one end of the push rod 201 extends into the fixing groove 401 and abuts against the limiting block 402.

A plurality of limiting blocks 402 with different heights are arranged in the limiting seat 4, the limiting blocks 402 are elastically connected with the limiting seat 4 through limiting springs 403, under normal conditions, one end of each limiting block 402 can penetrate through the limiting seat 4 and is inserted into a limiting groove 801 on the inner side of the limiting sleeve 8, so that the limiting seat 4 cannot rotate under the action of the limiting sleeve 8 and the limiting blocks 402, when the limiting seat 4 needs to be adjusted, only an adjusting assembly is inserted into the limiting seat 4, the adjusting assembly consists of a plurality of ejector rods 201 with different lengths, the ejector rods 201 are inserted into the limiting seat 4 and abut against the limiting blocks 402, inclined planes are arranged on the limiting blocks 402, the limiting blocks 402 can move towards the inner side of the limiting seat 4 under the pushing of the ejector rods 201, so that the limiting blocks 402 cannot be clamped with the limiting sleeves 8, and the limiting seat 4 can normally move;

stopper 402 highly is different, need promote stopper 402 through the ejector pin 201 of co-altitude not to move, only push away to predetermined position by ejector pin 201 when all stopper 402, spacing seat 4 just can move like this, in the in-process of in-service use, need not adjust spacing seat 4 with the help of the adjusting part with spacing seat 4 looks adaptation, just need adjust a plurality of not co-altitude stopper 402 simultaneously, and still need rotate spacing seat 4 after adjusting the completion, the degree of difficulty greatly increased, the protectiveness is better.

Example 3

In the embodiment, aiming to further improve the protection capability of the limiting seat 4, the embodiment is explained based on embodiment 1, and specifically, please refer to fig. 1, fig. 2, fig. 3, and fig. 7, a bevel edge is disposed on the lower side of the limiting block 402, a second limiting post 404 is disposed on the upper side of the limiting block 402, and a first limiting post 405 is disposed at one end of the limiting block 402.

One end of the limiting seat 4 is provided with a first limiting groove 406, and the first limiting groove 406 is provided with a plurality of first limiting plates 9, the first limiting plates 9 are elastically connected with the limiting seat 4 through spring pieces 10, the first limiting plates 9 are abutted against the first limiting columns 405, and one side of the first limiting plates 9 away from the first limiting columns 405 is provided with first limiting teeth 901.

The one end that first spacing groove 406 was kept away from to spacing seat 4 is equipped with second limiting plate 11, and second limiting plate 11 is located fixed slot 401, and second limiting plate 11 passes through first spring 12 and spacing seat 4 elastic connection, and second limiting plate 11 contradicts with spacing post 404 of second, and one side that spacing post 404 of second was kept away from to second limiting plate 11 also is equipped with the hypotenuse.

The limiting block 402 is provided with a first limiting column 405 and a second limiting column 404, a first limiting plate 9 is arranged in a first limiting groove 406, the first limiting plate 9 is provided with a first limiting tooth 901, the first limiting plate 9 is movable and is elastically connected with a limiting seat 4 through a V-shaped spring piece 10, a second limiting plate 11 is further arranged in the limiting seat 4, the second limiting plate 11 is also movable and is elastically connected with the limiting seat 4 through a first spring 12, the first limiting plate 9 is abutted against the first limiting column 405, the second limiting plate 11 is abutted against the second limiting column 404, in the actual use process, the limiting block 402 can be abutted against to move after the ejector rod 201 is inserted into the limiting seat 4, the limiting block 402 can be further limited by the first limiting plate 9 and the second limiting plate 11 after being abutted against the ejector rod 201, and in order to allow the limiting block 402 to move, the first limiting plate 9, the second limiting plate 404 and the limiting rod 13 are released, The second limiting plate 11 limits the limiting block 402, and then the limiting block 402 can move, so that a better protection effect is achieved.

Example 4

In the present embodiment, in order to facilitate solving the problem of how to adjust the first limiting plate 9 and the second limiting plate 11, the present embodiment is explained based on embodiment 1, specifically, please refer to fig. 1 to 5, a limiting rod 13 is disposed at the position of the limiting seat 4, the limiting rod 13 is elastically connected to the limiting seat 4 through a second spring 14, a first limiting convex rib 1301 and a second limiting convex rib 1302 are disposed on the limiting rod 13, the first limiting convex rib 1301 is in a circular truncated cone shape, and the first limiting convex rib 1301 abuts against the first limiting tooth 901;

the position and the number of the second limiting convex ribs 1302 correspond to those of the second limiting plate 11 one by one, the outer sides of the second limiting convex ribs 1302 are provided with inclined planes, the second limiting convex ribs 1302 are annularly distributed on the limiting rod 13, and the second limiting convex ribs 1302 are abutted to the second limiting plate 11.

A limiting rod 13 is arranged at the position of the limiting seat 4, one end of the limiting rod 13 is inserted into the fixing groove 401, meanwhile, the limiting rod 13 is elastically connected with the limiting seat 4 through a second spring 14, a first limiting convex rib 1301 and a second limiting convex rib 1302 are arranged on the limiting rod 13, the first limiting convex rib 1301 is abutted against the first limiting tooth 901, and the second limiting convex rib 1302 is abutted against the second limiting plate 11; then, the limiting rod 13 is pushed towards the limiting seat 4, and the first limiting convex rib 1301 is in a circular truncated cone shape, so that the first limiting convex rib 1301 cannot influence the movement of the first limiting column 405 along with the movement of the first limiting convex rib 1301.

Example 5

In the present embodiment, it is intended to facilitate solving the problem of how to adjust the limiting rod, and the present embodiment is explained based on embodiment 1, specifically, please refer to fig. 1, fig. 3 and fig. 5, an adjusting rod 202 is further disposed at the supporting plate 3, and a magnetic column 203 is disposed at one end of the adjusting rod 202. The end of the limiting rod 13 is provided with a slot 1303 matched with the magnetic column 203.

The end part of the limiting rod 13 is provided with a slot 1303, the supporting plate 3 is provided with a movable adjusting rod 202, the end part of the adjusting rod 202 is provided with a magnetic column 203 matched with the slot 1303, when the limiting rod is used, the adjusting rod 202 only needs to be pushed, the magnetic column 203 is inserted into the slot 1303, the adjusting rod 202 and the limiting rod 13 are inserted together, and then the limiting rod 13 and the adjusting rod 202 move synchronously no matter the adjusting rod 202 is rotated or the adjusting rod 202 is pushed.

Example 6

In the present embodiment, it is intended to facilitate solving the problem of how to conveniently adjust the limiting rod, and the present embodiment is explained based on embodiment 1, specifically, please refer to fig. 1 and fig. 6, a through hole for the adjusting rod 202 to pass through is formed on the supporting plate 3, a handle 204 is arranged at the tail of the adjusting rod 202, a limiting support rod 205 is arranged on the handle 204, and one end of the limiting support rod 205 is abutted against the supporting plate 3. The handle 204 is removably coupled to the adjustment lever 202 via threads.

Since the inclined edge is provided on the second limit plate 11, when the limit rod 13 is pushed to the inner side of the limit seat 4 to move, if the pushing amplitude is too large, under the pushing of the limiting rod 13, the second limiting plate 11 is pushed to move outwards, that is, the movement amplitude of the limiting rod 13 cannot be too large or too small, otherwise, the second limiting plate 11 cannot be pushed to a preset position, if the position of the second limiting plate 11 is not correct, the limiting block 402 cannot move, and therefore the limiting seat 4 cannot be adjusted, so that the adjustment of the second limiting plate 11 can be conveniently completed, the tail part of the adjusting rod 202 is provided with a handle 204, the handle 204 is provided with a limit supporting rod 205, when the adjusting rod 202 is pushed to move and the adjusting rod 202 reaches a preset position, the limiting support rod 205 can be just abutted against the supporting plate 3, the adjusting is convenient, the handle 204 is detachable, and the maintenance and the replacement are convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a protective structure of network hemisphere camera, includes fixing support (1), camera fixing base (2) and backup pad (3), camera fixing base (2) are located the downside of fixing support (1), just camera fixing base (2) with fixing support (1) rotate to be connected its characterized in that: one end of the fixed support (1) is provided with a limiting seat (4), a first belt pulley (5) and a second belt pulley (6) are arranged inside the fixed support (1), the limiting seat (4) is rotatably connected with the fixed support (1), the first belt pulley (5) is fixedly connected with the camera fixing seat (2), the second belt pulley (6) is fixedly connected with the limiting seat (4), and the second belt pulley (6) is in transmission connection with the first belt pulley (5) through a belt (7);

the outside cover of spacing seat (4) is equipped with stop collar (8), the one end of stop collar (8) with fixing support (1) fixed connection, just the inboard of stop collar (8) is equipped with the spacing recess of a plurality of (801), be equipped with fixed slot (401) in spacing seat (4), just be equipped with the stopper (402) of a plurality of high difference in fixed slot (401), the one end of stopper (402) pass through spacing spring (403) with spacing seat (4) elastic connection, it is right to be equipped with on backup pad (3) spacing seat (4) carry out the adjusting part who adjusts.

2. The protection structure of a network dome camera according to claim 1, wherein: the adjusting component comprises a plurality of ejector rods (201) with different lengths, the ejector rods (201) and the limiting blocks (402) are in one-to-one correspondence, and one ends of the ejector rods (201) extend into the fixing grooves (401) and are abutted to the limiting blocks (402).

3. The protection structure of a network dome camera as claimed in claim 1, wherein: the downside of stopper (402) is equipped with the hypotenuse, just the upside of stopper (402) is equipped with spacing post of second (404), the one end of stopper (402) is equipped with first spacing post (405).

4. A protection structure of a network dome camera according to claim 3, wherein: one end of the limiting seat (4) is provided with a first limiting groove (406), a plurality of first limiting plates (9) are arranged in the first limiting groove (406), the first limiting plates (9) are elastically connected with the limiting seat (4) through spring pieces (10), the first limiting plates (9) are abutted to the first limiting columns (405), and one sides, far away from the first limiting columns (405), of the first limiting plates (9) are provided with first limiting teeth (901).

5. The protection structure of a network dome camera according to claim 4, wherein: keep away from spacing seat (4) the one end of first spacing groove (406) is equipped with second limiting plate (11), second limiting plate (11) are located in fixed slot (401), just second limiting plate (11) through first spring (12) with spacing seat (4) elastic connection, second limiting plate (11) with spacing post of second (404) are contradicted, just second limiting plate (11) are kept away from one side of spacing post of second (404) also is equipped with the hypotenuse.

6. The protection structure of a network dome camera according to claim 5, wherein: a limiting rod (13) is arranged at the position of the limiting seat (4), the limiting rod (13) is elastically connected with the limiting seat (4) through a second spring (14), a first limiting convex rib (1301) and a second limiting convex rib (1302) are arranged on the limiting rod (13), the first limiting convex rib (1301) is in a circular truncated cone shape, and the first limiting convex rib (1301) is abutted against the first limiting teeth (901);

the position and the number of the second limiting convex ribs (1302) correspond to those of the second limiting plate (11) one by one, inclined planes are arranged on the outer sides of the second limiting convex ribs (1302), the second limiting convex ribs (1302) are annularly distributed on the limiting rod (13), and the second limiting convex ribs (1302) are abutted to the second limiting plate (11).

7. The protection structure of a network dome camera according to claim 6, wherein: an adjusting rod (202) is further arranged at the supporting plate (3), and a magnetic column (203) is arranged at one end of the adjusting rod (202).

8. The protection structure of a network dome camera according to claim 7, wherein: and the end part of the limiting rod (13) is provided with a slot (1303) matched with the magnetic column (203).

9. The protection structure of a network dome camera according to claim 7, wherein: be equipped with the confession on backup pad (3) adjust the through-hole that pole (202) passed, the afterbody of adjusting pole (202) is equipped with handle (204), just be equipped with spacing branch (205) on handle (204), the one end of spacing branch (205) with backup pad (3) are contradicted.

10. The protection structure of a network dome camera according to claim 7, wherein: the handle (204) is detachably connected with the adjusting rod (202) through threads.