CN215581467U - Shield device and monitoring equipment - Google Patents

Abstract

The application discloses a shield device and monitoring equipment, wherein the shield device comprises a shield, a fixing plate and a pressing mechanism, and a containing groove is formed in the shield; the fixing plate is arranged in the accommodating groove and is used for being connected with the monitoring equipment; the pressing mechanism enables the fixing plate to be in releasable limiting pressing connection with the bottom of the accommodating groove. The protective cover device is convenient to fix or detach, can be adjusted at any position according to the length of the lens, and saves the manual construction cost; the sustainable use performance is good.

Description

Shield device and monitoring equipment

Technical Field

The application relates to the technical field of security protection, in particular to a shield device and monitoring equipment.

Background

The monitoring equipment is applied to a security system and plays a monitoring role. The monitoring device can be applied to different application scenes, when the monitoring device is applied to different application scenes, the monitoring device needs to use lenses with different focal lengths, and the most intuitive difference of the shapes of the lenses with different focal lengths is the difference of the lens lengths. When the monitoring device is installed and debugged on site, the relative position of the monitoring device body in the shield is required to be adjusted according to the selected lens.

The existing monitoring equipment body is installed in the protective cover through screws, and when the installation position of the monitoring equipment body needs to be adjusted, a plurality of screws are directly unscrewed through tools to adjust the position of the monitoring equipment body. However, the above method is not only inconvenient to adjust, but also inefficient in disassembly and assembly.

SUMMERY OF THE UTILITY MODEL

The application provides a guard shield device and supervisory equipment to supervisory equipment need adjust the supervisory equipment position through instrument unscrewing screw in the solution current scheme, and leads to the technical problem of dismouting inefficiency.

In order to solve the above technical problem, the present application provides a shield device, including: the protective cover is provided with a containing groove; the fixing plate is arranged in the accommodating groove and is used for being connected with the monitoring equipment body; the pressing mechanism presses the fixing plate in the accommodating groove in a releasable limiting manner.

The pressing mechanism comprises a pressing strip, a rotating assembly and a locking assembly, the pressing strip comprises a first end and a second end which are opposite, the first end of the pressing strip is rotatably installed in the accommodating groove through the rotating assembly, the second end of the pressing strip can be opened and closed in the accommodating groove through the locking assembly, and the fixing plate can be in releasable limiting crimping in the accommodating groove through the pressing strip.

Wherein, locking Assembly includes first joint portion and the second joint portion with first joint portion joint, and one in first joint portion and the second joint portion sets up in the second end of layering, and another sets up in the storage tank.

The first clamping part comprises a lock catch seat, and the lock catch seat is provided with a lock catch hole; the second clamping portion comprises a lock catch, the lock catch is provided with a lock catch portion, the lock catch portion is provided with a lock catch top surface, and the lock catch top surface is clamped into the lock catch hole.

The second end part of the pressing strip is provided with a concave groove, an elastic part is arranged in the concave groove, the lock catch is positioned in the concave groove, the elastic part is pre-compressed between the lock catch and the groove wall of the concave groove, and the lock catch part can extend out of or retract into the concave groove; the lock catch is provided with a lock catch push plate, and the lock catch push plate is connected with the lock catch part and protrudes and extends in the compression joint direction far away from the lock catch part.

Wherein, a side of the pressing strip facing the fixing plate is provided with a plurality of first damping parts, and the first damping parts and the fixing plate can be in releasable crimping.

The pressing mechanism can press the fixing plate in the guide rail groove in a releasable manner; and/or the fixed plate is provided with a second damping piece which can be in releasable pressure joint with the bottom of the containing groove or the guide rail groove.

Wherein, the shield is provided with a window glass; the protective cover device comprises a wind heating assembly, the wind heating assembly is arranged on the pressing mechanism, and warm wind is formed by the wind heating assembly and blows towards the window glass and/or the lens in the monitoring equipment.

The air heating component comprises an air guide cover, and a wind machine part and a heating part which are arranged in the air guide cover, wherein air flow of the wind machine part blows to the heating part to form hot air, and the hot air blows to window glass and/or a lens in the monitoring equipment through the air guide cover.

In order to solve the above technical problem, the present application provides a monitoring device, which includes the above-mentioned shield device.

The beneficial effect of this application is: be different from prior art's condition, this application provides a shield apparatus, and pressing mechanism is convenient for fix or dismantle the supervisory equipment body with the spacing crimping of fixed plate formula of can relieving in the storage tank in the shield apparatus to be convenient for can realize the regulation of optional position according to the length of camera lens, practiced thrift artifical construction cost. In addition, in the fixing or dismounting process, the protective cover cannot be structurally damaged, and the sustainable use performance is good.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of an embodiment of the shielding apparatus of the present application;

FIG. 2 is a first partial schematic view of FIG. 1;

FIG. 3 is a second partial schematic view of FIG. 1;

FIG. 4 is a schematic view of the structure of A shown in FIG. 2;

FIG. 5 is a top view of the hold-down mechanism of FIG. 1;

FIG. 6 is a schematic view of the structure of B-B shown in FIG. 5;

FIG. 7 is a third partial schematic view of FIG. 1;

fig. 8 is a schematic structural view of the air heating module shown in fig. 1.

Reference numerals: 1. a shield; 11. a containing groove; 12. a guide rail groove; 13. a window glass; 2. a fixing plate; 21. a second damping member; 3. a hold-down mechanism; 31. layering; 311. a concave groove; 312. a first damping member; 32. a rotating assembly; 321. a rotating shaft; 322. a rotating shaft fixing seat; 33. a locking assembly; 331. a lock catch seat; 3311. a locking hole; 332. locking; 3321. a locking part; 33211. a top surface of the latch; 33212. a lock catch lead-in surface; 3322. an elastic member; 3323. a lock catch baffle plate; 3324. a lock catch push plate; 4. a wind heating assembly; 41. a wind scooper; 411. a front tuyere; 412. a side tuyere; 42. a wind machine member; 43. a heat generating member; 20. monitoring equipment; 201. and (5) a lens.

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.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The following describes the shield device and the monitoring device provided by the present invention in detail with reference to the embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a shielding apparatus according to the present application. In an embodiment, the shield apparatus includes a shield 1 and a fixing plate 2, the shield 1 is formed with a receiving groove 11, the fixing plate 2 is disposed in the receiving groove 11, the fixing plate 2 is used for being connected with the monitoring device body 20, and the fixing plate 2 plays a role of fixing and supporting the monitoring device body 20, so that the monitoring device body 20 is installed in the receiving groove 11 through the fixing plate 2.

The shield device comprises a pressing mechanism 3, the pressing mechanism 3 is arranged in the containing groove 11, and the fixing plate 2 is pressed in the containing groove 11 in a releasable limiting mode through the pressing mechanism 3. When the monitoring device body 20 is adjusted in the inner position of the shield 1 as required, the pressing mechanism 3 is controlled to release the limiting pressure connection between the monitoring device body 20 and the fixing plate 2, so that the fixing plate 2 and the monitoring device body 20 thereon can move freely, the monitoring device body 20 is convenient to disassemble and assemble, and different lenses 201 can be replaced conveniently. After the position of the fixing plate 2 and the monitoring device body 20 thereon is adjusted or the lens 201 is replaced, the pressing mechanism 3 is controlled to limit the fixing plate 2 to be pressed in the accommodating groove 11, so as to fix the fixing plate 2 and the monitoring device body 20 thereon.

Therefore, the pressing mechanism 3 can release the limiting pressure joint in the accommodating groove 11, so that the monitoring device body 20 is convenient to fix or detach, the monitoring device body 20 can be adjusted at any position according to the length of the lens 201, and the manual construction cost is saved. Moreover, in the fixing or dismounting process, the protective cover 1 cannot be structurally damaged, and the sustainable use performance is good. In addition, in the present embodiment, the monitoring device body 20 can be mounted and dismounted by hand without using an external tool.

The number of the above-mentioned pressing mechanisms 3 may be determined according to actual conditions, for example, according to the structure of the fixing plate 2 or the installation manner of the monitoring device body 20, and the number of the pressing mechanisms 3 may be one, two or more. If the fixing plate 2 of the embodiment is arranged in a square shape, the monitoring device body 20 is installed in the middle of the fixing plate 2, and two side edges of the fixing plate 2 are symmetrically arranged; wherein hold-down mechanism 3 is two, and two hold-down mechanisms 3 are symmetrical respectively and are set up in the long limit direction in storage tank 11 both sides, and the spacing crimping of a hold-down mechanism 3 correspondence releasable is on a fixed plate 2 side to fixed or dismouting fixed plate 2 and go up supervisory equipment body 20. Alternatively, the fixing plate 2 and the monitoring device body 20 may be fixedly or detachably connected, and are not limited herein.

Referring to fig. 2, fig. 2 is a first partial schematic view shown in fig. 1. Referring to fig. 1, in an embodiment, the pressing mechanism 3 includes a pressing bar 31, a rotating assembly 32, and a locking assembly 33, where the pressing bar 31 includes a first end (not shown) and a second end (not shown), and the first end of the pressing bar 31 is rotatably mounted to the accommodating groove 11 through the rotating assembly 32, that is, the first end of the pressing bar 31 can be rotatably disposed relative to the accommodating groove 11. The second end of the pressing bar 31 can be opened and closed in the accommodating groove 11 through the locking component 33, wherein the pressing bar 31 can be in releasable limiting and pressing connection with the fixing plate 2.

When the monitoring device body 20 needs to be adjusted in the inner position of the shield 1 or the lens 201 needs to be replaced, the locking assembly 33 is controlled to be in an unlocking state, and the first end of the pressing bar 31 can rotate in the accommodating groove 11 through the rotating assembly 32, so that the whole pressing bar 31 can be released from the limiting compression joint with the fixing plate 2, the fixing plate 2 and the monitoring device body 20 on the fixing plate 2 can be disassembled, and the disassembling and assembling efficiency is improved.

After the monitoring device body 20 is adjusted relative to the inner position of the shield 1 or the lens 201 is replaced, the locking assembly 33 is controlled to be in a locking state, and the fixing plate 2 and the monitoring device body 20 thereon are fixed due to the fact that the second end of the pressing bar 31 is locked in the accommodating groove 11.

Through the mutual cooperation of the pressing strip 31, the rotating assembly 32 and the locking assembly 33, the monitoring device body 20 is convenient to fix and disassemble and the position of the monitoring device body 20 is convenient to adjust, so that the disassembling and assembling efficiency is improved, and the labor cost is reduced. The rotating assembly 32 may have any structure as long as the first end of the pressing bar 31 can rotate in the accommodating groove 11 along with the rotating assembly 32, and the specific structure is not limited. In addition, the locking assembly 33 may have any structure as long as the second end of the pressing bar 31 can be locked or unlocked in the accommodating groove 11 through the locking assembly 33, and the specific structure is not limited. The bead 31 is made of a rigid material, and can improve the crimping force.

In an embodiment, referring to fig. 1 and fig. 2, the rotating assembly 32 includes a rotating shaft 321 and a rotating shaft fixing seat 322, and the rotating shaft 321 simultaneously penetrates through the rotating shaft fixing seat 322 and the pressing bar 31, so that the pressing bar 31 can rotate on the rotating shaft fixing seat 322 through the rotating shaft 321. The shaft fixing seat 322 is mounted in the accommodating groove 11 through a fixing member (not shown). The rotating assembly 32 is simple in structure and easy to implement. Of course, in other embodiments, the rotating assembly 32 may have other structures, and is not limited herein.

Referring to fig. 3 and 4, fig. 3 is a second partial schematic view of fig. 1; fig. 4 is a schematic structural view of a shown in fig. 2. In an embodiment, referring to fig. 1 and 2, the locking assembly 33 includes a first clamping portion (not shown) and a second clamping portion (not shown), and the first clamping portion and the second clamping portion are clamped. When the locking assembly 33 is in the locking state, the first clamping portion and the second clamping portion are clamped and connected, so that the fixing plate 2 is locked in the accommodating groove 11 by the pressing bar 31. When the locking assembly 33 is in the unlocking state, the first clamping portion and the first clamping portion are released from clamping, so that the pressing bar 31 is released from being connected with the fixing plate 2.

The setting positions of the first clamping portion and the second clamping portion can be determined according to actual conditions. In one embodiment, the first engaging portion is disposed on the second end of the pressing bar 31, and the second engaging portion is disposed in the accommodating groove 11. In an alternative embodiment, the first engaging portion is disposed in the receiving groove 11, and the second engaging portion is disposed on the second end of the pressing bar 31. The first clamping portion and the second clamping portion can be of any structure as long as the first clamping portion and the second clamping portion can be achieved, and limitation is not required here.

Referring to fig. 5 and 6, fig. 5 is a top view of the hold-down mechanism of fig. 1; fig. 6 is a schematic view of the structure of B-B shown in fig. 5. Referring to fig. 4, specifically, the first engaging portion includes a locking base 331, and the locking base 331 is provided with a locking hole 3311. The second clamping portion comprises a lock catch 332, the lock catch 332 is provided with a lock catch portion 3321, the lock catch portion 3321 is provided with a lock catch top surface 33211, the lock catch top surface 33211 is clamped into the lock catch hole 3311, the locking connection between the lock catch base 331 and the lock catch 332 is realized, and the locking connection of the locking component 33 is further realized. When the locking assembly 33 needs to be released, the lock top surface 33211 is released from the lock hole 3311. The locking seat 331 may be mounted on the pressing bar 31 or in the receiving groove 11 by a fixing member. Meanwhile, the lock 332 may be mounted in the receiving groove 11 or on the bead 31 by a fixing member.

Further, referring to fig. 4, 5 and 6, the second end of the pressing bar 31 is provided with a concave slot 311, an elastic element 3322 is disposed in the concave slot 311, and the lock catch 332 is disposed in the concave slot 311, wherein the lock catch portion 3321 can extend out of or retract into the concave slot 311, and at the same time, the lock catch top surface 33211 in the lock catch portion 3321 can be driven to extend out of or retract into. One end of the elastic element 3322 is disposed on the groove wall of the concave groove 311, the other end of the elastic element 3322 is disposed on the latch 332, and the elastic element 3322 has elasticity such that the elastic element 3322 is pre-compressed between the latch 332 and the groove wall of the concave groove 311. That is, under the action of the elastic element 3322, the elastic element 3322 can push the locking part 3321 to extend or retract.

In addition, the lock 332 is provided with a lock push plate 3324, the lock push plate 3324 is connected to the lock part 3321, the lock push plate 3324 can drive, and the lock push plate 3324 can protrude or extend in a direction away from the crimping direction relative to the lock part 3321. When the push plate 3324 is pushed to move toward the resilient member 3322, the latch 332 will move in the recess 311 against the resilient force of the resilient member 3322, so as to control the latch portion 3321 to extend into the recess 311, thereby releasing the latch portion 33211 of the latch portion 3321 from the latch hole 3311. When the resilient member 3322 is forced to return to its original shape, the resilient member 3322 pushes the locking portion 3321 and the locking device 332 to move away from the resilient member 3322, so that the locking portion 3321 protrudes out of the concave slot 311.

The locking portion 3321 may further have a locking guiding surface 33212, and when the locking device 332 is pressed downward, the locking device 332 is guided by the locking guiding surface 33212 to facilitate the engagement between the locking device top surface 33211 and the locking device base 331. In addition, when the accommodating groove 11 is formed at the end of the pressing bar 31, a lock catch baffle 3323 may be disposed at the end of the pressing bar 31, and the lock catch baffle 3323 may limit the lock catch 332 to prevent the lock catch 332 from being released from the accommodating groove 11. The above-mentioned lock shutter 3323 is mounted at the end position of the bead 31 by a fixing member or the like. Meanwhile, the lock catch baffle 3323 is provided with a hollow groove (not shown in the figure) for extending or retracting the lock catch portion 3321.

In an embodiment, referring to fig. 4 to 6, a plurality of first damping members 312 are disposed on a side surface of the pressing bar 31 facing the fixing plate 2, when the pressing bar 31 is pressed against the fixing plate 2, the first damping members 312 can increase a contact area between the pressing bar 31 and the fixing plate 2, so as to increase a friction force between the pressing bar 31 and the fixing plate 2, and more reliably fix the fixing plate 2 in the accommodating groove 11, thereby improving stability of the monitoring device body 20. The first damping members 312 are spaced apart from each other on a side of the molding 31 facing the fixing plate 2, and the spacing distances between the first damping members 312 may be equal or different. Here, the first damping member 312 may be a damping pad or the like, and the damping pad may be made of plastic or the like.

In an embodiment, referring to fig. 1 to 3, a guide rail groove 12 is disposed in the accommodating groove 11, and the guide rail groove 12 facilitates the movement of the fixing plate 2, so as to drive the monitoring device body 20 to move. In addition, the pressing mechanism 3 presses the fixing plate 2 in the guide rail groove 12, so that the contact force between the fixing plate 2 and the guide rail groove 12 is increased, the fixing plate 2 is more easily pressed in the guide rail groove 12, and the installation stability of the monitoring device body 20 is realized.

Referring to fig. 7, fig. 7 is a third partial schematic view shown in fig. 1. Referring to fig. 1, in an embodiment, the two side edges of the fixing plate 2 are provided with second damping members 21, and when the pressing strip 31 is pressed in the bottom of the accommodating groove 11 or the guide rail groove 12, the second damping members 21 can increase the friction between the fixing plate 2 and the bottom of the accommodating groove 11 or the guide rail groove 12, so as to fix the monitoring device body 20 more reliably. The second damping member 21 may be a damping pad or the like, and the damping pad may be made of plastic or the like.

When the monitoring device is applied outdoors, especially in cold seasons or cold places, such as cold north, the outdoor temperature may reach minus thirty degrees centigrade, and the lens 201 or the window glass 13 in some monitoring devices may have low-temperature virtual focus due to inherent defects in design, resulting in poor image quality and affecting the normal monitoring of the monitoring device.

Referring to fig. 8, fig. 8 is a schematic structural diagram of the air heating assembly shown in fig. 1. Referring to fig. 1, in an embodiment, the protecting cover device includes a wind heating assembly 4, the wind heating assembly 4 is disposed in the accommodating groove 11, a hot airflow is formed on the wind heating assembly 4, and the hot airflow flows to the window glass 13 of the protecting cover 1, so as to effectively perform a defogging function. In addition, the hot air flows to the lens 201 in the monitoring device body 20, so that the temperature of the lens 201 is raised, the problem of low-temperature virtual focus of the lens 201 is solved, and meanwhile, the image quality can be improved. In an actual process, when the lens 201 is out of the virtual focus, the air heating component 4 only needs to be started to work through remote control.

The air heating assembly 4 may be disposed at any position of the accommodating groove 11, as long as the hot air flow of the air heating assembly 4 can flow to the window glass 13 and/or the lens 201. In order to make the structure of the shield device more compact, the air heating assembly 4 may be disposed on the pressing mechanism 3, and the air heating assembly 4 can rotate along with the rotation of the pressing bar 31. Optionally, the air heating assembly 4 is detachably disposed on the pressing bar 31.

Specifically, the air heating assembly 4 includes an air guiding cover 41, a fan member 42 and a heat generating member 43, and the fan member 42 and the heat generating member 43 are integrally disposed in the air guiding cover 41. A wind mechanism 42 for air flow; the heat generating member 43 serves to heat air. The wind machine part 42 blows hot air around the heating part 43 to flow, wherein the hot air is used for forming warm air, and the warm air flows to the window glass 13 and/or the lens 201 under the action of the wind scooper 41, so that the function of demisting can be effectively realized; meanwhile, virtual focus of the lens 201 under the low-temperature condition is avoided, and image quality is improved. Furthermore, the air guiding cover 41 is provided with an air outlet 411 and a side air inlet 412, the air outlet 411 is arranged on one side of the air guiding cover 41 close to the window glass 13, and warm air flows to the window glass 13 under the action of the air outlet 411, so that the function of defogging can be effectively achieved. The side air inlet 412 is arranged on the side wall of the air guide cover 41 far away from the shield 1, and the warm air flows to the lens 201 under the action of the side air inlet 412, so that the temperature of the lens 201 is raised, and the problem of low-temperature virtual focus of the lens 201 is solved.

The specific adjustment process of the monitoring device body 20 is as follows: referring to fig. 1 to 6, a, the assembled monitoring device body 20 is placed in the shield 1, and the bottom surface of the fixing plate 2 on the monitoring device body 20 is attached to the rail groove 12 in the accommodating groove 11. The position of the monitoring device body 20 in the shield 1 is moved according to the length of the lens 201, as long as a certain distance is ensured between the lens 201 and the window glass 13.

B. The pressing strips 31 on the left and right sides are pressed downwards by two hands, and when the lock catch 332 touches the lock catch base 331, the lock catch 332 overcomes the elasticity of the elastic element 3322 and moves towards the rotating shaft 321 in the concave slot 311. When the pressing bar 31 is pressed downwards until the first damping member 312 on the pressing bar 31 presses tightly against the upper surface of the second damping member 21, the latch 332 is forced by the resilient member 3322 to move the latch 332 toward the latch seat 331, and the latch top surface 33211 penetrates into the latch hole 3311. At this time, after the hand is released, the top surface 33211 of the lock catch is tightly attached to the lock catch base 331, the pressing strip 31 is in a closed state, and the monitoring device body 20 is in a fixed state due to the fact that the fixing plate 2 is pressed by the pressing strip 31 and the guide rail groove 12 from top to bottom through the second damping piece 21.

C. When a field user needs to replace the lens 201, the pressing strip 31 can be in an open state only by pushing the lock catch push plate 3324 towards the rotating shaft 321 by a hand, the fixing plate 2 is not pressed by the pressing strip 31 any more, and the monitoring device body 20 can be removed from the shield 1 to replace the lens 201. When the lens 201 is replaced, the monitoring device body 20 needs to be fixed, the steps are repeated, the whole process does not need to be carried out by means of an external tool, and the monitoring device body 20 can be fixed and detached by bare hands.

Compare in prior art, hold-down mechanism can relieve the spacing crimping of formula with the fixed plate in the storage tank among this embodiment guard shield device, is convenient for fix or dismantle the supervisory equipment body to be convenient for can realize the regulation of optional position according to the length of camera lens, practiced thrift artifical construction cost. In addition, in the fixing or dismounting process, the protective cover cannot be structurally damaged, and the sustainable use performance is good.

In one embodiment, the monitoring device includes a shield device, the monitoring device body is installed in the shield device, and the lens is disposed on the monitoring device body. The protective cover device can not only fix the monitoring equipment body, but also play roles in water prevention, dust prevention and the like; in addition, the protective cover device can be convenient for the installation and the disassembly of the monitoring equipment body, and is convenient for the adjustment of the monitoring equipment body, thereby improving the disassembly and assembly efficiency. It should be noted that the above-mentioned shield device is the shield device described in the above-mentioned embodiment, and is not described herein again.

The monitoring equipment is applied to a monitoring system, the monitoring equipment can be a camera, and the camera is important video acquisition equipment in the monitoring system. Wherein the camera may be a gun-shaped camera or the like.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A shield apparatus, comprising:

the protective cover is provided with a containing groove;

the fixing plate is arranged in the accommodating groove and is used for being connected with the monitoring equipment body;

and the pressing mechanism presses the fixing plate in the accommodating groove in a releasable limiting manner.

2. The shield apparatus of claim 1, wherein the compression mechanism includes a compression bar, a rotation assembly, and a locking assembly, the compression bar including first and second opposing ends, the first end of the compression bar being rotatably mounted to the receiving slot via the rotation assembly, the second end of the compression bar being openable and closable to the receiving slot via the locking assembly, wherein the compression bar releasably constricts the fixation plate to the receiving slot.

3. The cover device of claim 2, wherein the locking assembly includes a first clamping portion and a second clamping portion clamped with the first clamping portion, one of the first clamping portion and the second clamping portion is disposed at the second end of the pressing bar, and the other is disposed in the accommodating groove.

4. The cover device according to claim 3, wherein the first engaging portion comprises a locking seat, and the locking seat is provided with a locking hole; the second clamping portion comprises a lock catch, the lock catch is provided with a lock catch portion, the lock catch portion is provided with a lock catch top surface, and the lock catch top surface is clamped into the lock catch hole.

5. The shield apparatus according to claim 4, wherein the second end of the pressing bar is formed with a concave groove, a resilient member is disposed in the concave groove, the latch is disposed in the concave groove, the resilient member is pre-compressed between the latch and a groove wall of the concave groove, and the latch portion can extend out of or retract into the concave groove;

the lock catch is provided with a lock catch push plate, and the lock catch push plate is connected with the lock catch part and protrudes and extends in a direction far away from the compression joint relative to the lock catch part.

6. The shield apparatus according to claim 2, wherein the bead is provided with a plurality of first damping members on a side thereof facing the fixing plate, the first damping members being releasably crimped with the fixing plate.

7. The shield apparatus according to claim 1, wherein a guide rail groove is provided in the accommodating groove, the fixing plate is movable in the guide rail groove, and the pressing mechanism releasably presses the fixing plate in the guide rail groove;

and/or the fixing plate is provided with a second damping piece which can be in releasable crimping connection with the bottom of the accommodating groove or the guide rail groove.

8. A shield arrangement according to claim 1, wherein the shield is provided with a window glass; the protective cover device comprises a wind heating assembly, the wind heating assembly is arranged on the pressing mechanism, and warm wind is formed by the wind heating assembly and blows towards the window glass and/or the lens in the monitoring equipment body.

9. The shielding device according to claim 8, wherein the air heating assembly includes an air guiding cover, and a wind member and a heat generating member disposed in the air guiding cover, and an air flow of the wind member blows toward the heat generating member to form a warm air, wherein the warm air blows toward the window glass and/or the lens in the monitoring apparatus body through the air guiding cover.

10. A monitoring device, characterized in that it comprises a shield arrangement according to any one of claims 1-9.

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