Anti-rotation mechanism and video monitoring equipment

Abstract

The utility model relates to the technical field of video monitoring, and provides an anti-rotation mechanism and video monitoring equipment, the anti-rotation mechanism comprises an anti-rotation main body and an anti-rotation member, the anti-rotation main body is installed on a pedestal of the video monitoring equipment, the anti-rotation main body is internally provided with a wire winding, the anti-rotation member is movably arranged on the anti-rotation main body and extends into the anti-rotation main body, and the anti-rotation member is connected with the anti-rotation main body. Under the condition that the wire winding loses power, the anti-rotation piece is inserted into an equipment main body of the video monitoring equipment so as to limit relative rotation between the equipment main body and the base; and under the condition that the wire winding is electrified, the anti-rotation piece is far away from the equipment main body of the video monitoring equipment, and the equipment main body and the base can rotate relatively. According to the utility model, a user can control the power-on or power-off of the wire winding according to actual needs, so that the relative position of the base and the equipment main body of the video monitoring equipment is limited or released, the operation is simpler, and the reliability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of video monitoring, in particular to an anti-rotation mechanism and video monitoring equipment. Background Art

[0002] At present, when installing video surveillance equipment with a turntable, such as mid-load pan / tilt heads, ball heads, and ball cameras, in order to prevent the turntable from rotating and causing collisions with the video surveillance equipment and affecting the use of the drive motor in the video surveillance equipment, tape is usually used to stick the rotating parts before the video surveillance equipment leaves the factory. The tape has poor sticking stability and needs to be re-sticked during the secondary assembly, which is inconvenient to operate. Utility Model Content

[0003] The utility model provides an anti-rotation mechanism to solve the above technical defects in the prior art. The user can control the power supply or power loss of the wire winding according to actual needs, and then limit or release the relative position of the base and the device body of the video monitoring device. The operation is simpler and the reliability is higher.

[0004] The utility model also provides a video monitoring device.

[0005] The utility model provides an anti-rotation mechanism, which comprises an anti-rotation main body and an anti-rotation part.

[0006] The anti-rotation body is installed on the base of the video monitoring device, and a wire winding is arranged inside the anti-rotation body.

[0007] The anti-rotation part can be movably arranged on the anti-rotation body and extend into the interior of the anti-rotation body. When the wire winding loses power, the anti-rotation part is inserted into the equipment body of the video surveillance equipment to limit the relative rotation between the equipment body and the base. When the wire winding is energized, the anti-rotation part is away from the equipment body of the video surveillance equipment, and the equipment body and the base can rotate relative to each other.

[0008] The anti-rotation mechanism provided by the utility model further comprises at least one guide member, wherein the guide member is arranged on the side wall of the anti-rotation member; the guide member is suitable for sliding along a guide groove arranged on the base of the video monitoring device.

[0009] The anti-rotation mechanism provided by the utility model has two guide members, and the two guide members are symmetrically arranged along the plane where the axis of the anti-rotation member is located.

[0010] The anti-rotation mechanism provided by the utility model further comprises an elastic element, which is sleeved on the anti-rotation part, one end of the elastic element abuts against the anti-rotation body, and the other end of the elastic element abuts against the guide part.

[0011] The utility model also provides a video monitoring device, comprising a base, a device body and any one of the anti-rotation mechanisms; the base is provided with a mounting portion, and the anti-rotation body is provided on the mounting portion;

[0012] A limiting hole is provided on the device body, the position of the limiting hole corresponds to the position of the mounting portion, and the virtual axis of the limiting hole is not colinear with the rotation axis of the device body.

[0013] The video monitoring device provided by the utility model further comprises a position detection component, which is arranged on the hole wall of the limiting hole and is used for detecting the position of the anti-rotation component.

[0014] The video monitoring equipment provided by the utility model, the position detection component comprises any one of a contact position sensor and a proximity position sensor.

[0015] In the video monitoring equipment provided by the utility model, when the position detection component comprises a proximity position sensor, the proximity position sensor is a photoelectric coupler.

[0016] The video monitoring device provided by the utility model also includes a control component, which is electrically connected to the position detection component and the wire winding respectively, and is used for controlling the wire winding to be energized or de-energized according to the position information detected by the position detection component.

[0017] The video monitoring equipment provided by the utility model, the control component comprises a single chip microcomputer, and the single chip microcomputer is electrically connected to the position detection component and the wire winding respectively.

[0018] The anti-rotation mechanism provided by the utility model is provided with an anti-rotation body and an anti-rotation part, and the anti-rotation part is movably connected with the anti-rotation body. The anti-rotation body can be installed on the base of the video surveillance device, and the anti-rotation part can be inserted into the device body of the video surveillance device. A wire winding is provided inside the anti-rotation body. When the wire winding loses power, the anti-rotation part is inserted into the device body of the video surveillance device to limit the relative rotation between the device body and the base; when the wire winding is powered, the anti-rotation part is away from the device body of the video surveillance device, and the device body and the base can rotate relative to each other. With this arrangement, the user can control the power on or off of the wire winding according to actual needs, and then limit or remove the relative position of the base and the device body of the video surveillance device, which is simpler to operate and more reliable.

[0019] The video monitoring device provided by the utility model has all the above advantages because it includes the above anti-rotation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the anti-rotation mechanism provided in an embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of an anti-rotation body and an anti-rotation member in an anti-rotation mechanism provided in an embodiment of the utility model.

[0023] Figure 3 It is a side view of the video monitoring device provided by an embodiment of the utility model.

[0024] Figure 4 It is a top view of the video monitoring device provided by an embodiment of the utility model.

[0025] Figure 5 It is a flowchart of the video monitoring device provided by the embodiment of the utility model.

[0026] Reference numerals:

[0027] 100, anti-rotation mechanism; 110, anti-rotation body; 111, guide winding; 120, anti-rotation member; 130, guide member; 140, elastic element;

[0028] 200, base; 210, mounting portion; 220, guide groove;

[0029] 300, device body; 310, limiting hole; 400, photoelectric coupler; 500, single chip microcomputer; S, rotation axis. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0032] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] Figure 1 It is a structural schematic diagram of the anti-rotation mechanism provided in an embodiment of the utility model. Figure 2 It is a structural schematic diagram of an anti-rotation body and an anti-rotation member in an anti-rotation mechanism provided in an embodiment of the utility model.

[0035] See also Figure 1 and Figure 2 An embodiment of the utility model provides an anti-rotation mechanism 100 , which includes an anti-rotation body 110 and an anti-rotation member 120 .

[0036] The anti-rotation body 110 can be made of cast iron, cast steel, stainless steel and other materials, and has good corrosion resistance and pressure resistance. The anti-rotation body 110 can be installed on the base 200 of the video surveillance device, that is, the anti-rotation body 110 can be fixedly installed on the base 200 of the video surveillance device, or can be detachably connected to the base 200 of the video surveillance device by fasteners such as bolts and screws, as long as the anti-rotation body 110 can be fixed relative to the base 200 of the video surveillance device. A wire winding is provided inside the anti-rotation body 110, and the wire winding (also known as a coil) is a driving component of the anti-rotation body 110, and the wire winding is connected to a power source.

[0037] The anti-rotation member 120 is also made of cast iron, cast steel, stainless steel and other materials. The anti-rotation member 120 is movably arranged on the anti-rotation body 110, that is, a circular guide hole can be opened below the anti-rotation body 110. The anti-rotation member 120 can be a cylindrical structure. The anti-rotation member 120 is slidably matched with the hole wall of the guide hole and extends into the interior of the anti-rotation body 110. A limit stop is set at one end of the anti-rotation member 120 located on the anti-rotation body 110. The limit stop restricts the anti-rotation member 120 to prevent the anti-rotation member 120 from escaping from the guide hole of the anti-rotation body 110. The shape of the guide hole can also be set to other polygons such as a triangle and a quadrilateral. The cross-sectional shape of the anti-rotation member 120 is adapted to the shape of the guide hole, which is determined according to actual usage.

[0038] The wire winding generates a magnetic field by energizing to attract the anti-rotation member 120 to move, thereby controlling the anti-rotation member 120 to be inserted into the device body 300 of the video surveillance device, or to be detached from the device body 300 of the video surveillance device. Specifically, when the wire winding loses power, the anti-rotation member 120 is inserted into the device body 300 of the video surveillance device to limit the relative rotation between the device body 300 and the base 200; when the wire winding is energized, the anti-rotation member 120 is away from the device body 300 of the video surveillance device, and the device body 300 and the base 200 can rotate relative to each other.

[0039] It can be understood that the anti-rotation mechanism 100 provided in the embodiment of the utility model is provided with an anti-rotation body 110 and an anti-rotation part 120, and the anti-rotation part 120 is movably connected with the anti-rotation body 110, and the anti-rotation body 110 can be installed on the base 200 of the video surveillance device, and the anti-rotation part 120 can be inserted into the device body 300 of the video surveillance device. A wire winding is provided inside the anti-rotation body 110, and when the wire winding is powered off, the anti-rotation part 120 is inserted into the device body 300 of the video surveillance device to limit the relative rotation between the device body 300 and the base 200; when the wire winding is powered on, the anti-rotation part 120 is away from the device body 300 of the video surveillance device, and the device body 300 and the base 200 can rotate relative to each other. With this arrangement, the user can control the power on or off of the wire winding according to actual needs, and then limit or remove the relative position of the base 200 and the device body 300 of the video surveillance device, which is simpler to operate and has higher reliability.

[0040] Continue reading Figure 1 In some embodiments of the present invention, the anti-rotation mechanism 100 further includes at least one guide member 130, which is disposed on the side wall of the anti-rotation member 120; a guide groove 220 for the guide member 130 to slide is provided on the base 200 of the video surveillance device.

[0041] The guide groove 220 is provided on the base 200 of the video surveillance device, the guide groove 220 extends in the height direction of the base 200, and a guide member 130 is provided on the outer side wall of the anti-rotation member 120 to slide with the guide groove 220. When the anti-rotation member 120 moves up and down relative to the anti-rotation body 110, the guide member 130 moves along the guide groove 220 to provide a guide for the movement of the anti-rotation member 120, thereby preventing the anti-rotation member 120 from deflecting or getting stuck, and further improving the reliability of the anti-rotation mechanism 100.

[0042] Among them, at least one guide member 130 is set, and two, three or four guide members 130 can also be set. When more than three guide members 130 are set, the guide members 130 are arranged in a circular array along the axis of the anti-rotation member 120, which has a better guiding effect and higher stability of the anti-rotation mechanism 100.

[0043] Continue reading Figure 1 In some embodiments of the present invention, in order to improve the guiding effect of the anti-rotation member 120 without increasing the production cost of the anti-rotation mechanism 100, two guide members 130 are provided, and the two guide members 130 are symmetrically arranged along the plane where the axis of the anti-rotation member 120 is located.

[0044] Continue reading Figure 1In some embodiments of the present invention, the anti-rotation mechanism 100 further includes an elastic element 140, which is sleeved on the anti-rotation member 120, one end of the elastic element 140 abuts against the anti-rotation body 110, and the other end of the elastic element 140 abuts against the guide member 130. The elastic element 140 may be a spring.

[0045] By arranging an elastic element 140 on the outer surface of the anti-rotation part 120 and making the elastic element 140 located between the anti-rotation body 110 and the guide member 130, when the wire winding loses power, the anti-rotation part 120 is pushed out by the elastic element and inserted into the device body 300 of the video surveillance device to limit the relative rotation between the device body 300 and the base 200, ensuring that the anti-rotation part 120 can more accurately limit the relative rotation between the device body 300 and the base 200, and further improving the reliability and stability of the anti-rotation mechanism 100.

[0046] It should be noted that the design principle of the anti-rotation mechanism 100 provided in the embodiment of the present invention is similar to the design principle of the solenoid valve, and the anti-rotation mechanism 100 provided in the present invention can be understood by referring to the design principle of the solenoid valve.

[0047] During the operation of the anti-rotation mechanism 100 provided by the embodiment of the utility model, a magnetic force is generated at the moment when the wire winding is energized to attract the anti-rotation part 120. The direction of the magnetic force on the anti-rotation part 120 is opposite to the direction of the elastic force of the elastic element 140, and the magnetic force on the anti-rotation part 120 is greater than the elastic force of the elastic element 140, that is, the magnetic force on the anti-rotation part 120 overcomes the elastic force of the elastic element 140, the elastic element 140 is compressed, and the anti-rotation part 120 moves upward until the anti-rotation part 120 is separated from the device body 300 of the video surveillance device, so as to release the position restriction between the base 200 and the device body 300 of the video surveillance device. At this time, the device body 300 of the video surveillance device can rotate relative to the base 200.

[0048] The magnetic force disappears the moment the wire winding loses power, and the anti-rotation part 120 moves downward under the action of gravity and the elastic force of the elastic element 140 until the anti-rotation part 120 is inserted into the device body 300 of the video surveillance device, so as to limit the position between the base 200 and the device body 300 of the video surveillance device. At this time, the device body 300 of the video surveillance device cannot rotate relative to the base 200.

[0049] Figure 3 It is a side view of the video monitoring device provided by an embodiment of the utility model. Figure 4 It is a top view of the video monitoring device provided by an embodiment of the utility model.

[0050] See also Figure 3 and Figure 4The embodiment of the utility model further provides a video monitoring device, which includes a base 200, a device body 300 and the above-mentioned anti-rotation mechanism 100.

[0051] The base 200 is provided with a mounting portion 210, which protrudes from the upper surface of the base 200 and is offset from the center of the base 200, that is, the mounting portion 210 is eccentrically arranged relative to the center of the base 200. The anti-rotation body 110 is arranged on the mounting portion 210.

[0052] A limiting hole 310 is provided on a surface of one side of the device body 300 facing the base 200. The position of the limiting hole 310 corresponds to the position of the mounting portion 210, and the virtual axis of the limiting hole 310 is not colinear with the rotation axis S of the device body 300, that is, the limiting hole 310 is eccentrically arranged relative to the rotation center of the device body 300, to ensure that after the anti-rotation part 120 is inserted into the limiting hole 310, the relative rotation between the base 200 and the device body 300 can be limited, thereby avoiding the situation where the limiting hole 310 is arranged at the rotation center of the device body 300 and the relative rotation between the base 200 and the device body 300 cannot be limited.

[0053] Figure 5 It is a flowchart of the video monitoring device provided by the embodiment of the utility model.

[0054] Continue reading Figure 4 , and also see Figure 5 The video monitoring device also includes a position detection component, which is arranged on the hole wall of the limiting hole 310 and is used to detect the position of the anti-rotation component 120.

[0055] When the video surveillance equipment only has a position detection component, the position detection component can be connected to a structure such as a voice prompt device, the position information of the anti-rotation component 120 is detected by the position detection component, and the voice prompt device is used to prompt that the anti-rotation component 120 is in place, which has higher reliability.

[0056] The position detection component includes any one of a contact position sensor and a proximity position sensor. The position of the anti-rotation member 120 is detected by the position detection component, and converted into an output signal to be fed back to the voice prompt device or the single chip microcomputer 500 described below, thereby performing closed-loop control on the video surveillance device, so that the reliability of the limit between the base 200 and the device body 300 in the video surveillance device is higher.

[0057] When the position sensor is a contact sensor, the contact sensor may include a travel switch, a two-dimensional matrix position sensor, etc. For example, the position detection component is a travel switch, which is arranged on the inner wall of the limit hole 310, and when the anti-rotation member 120 moves downward and collides with the travel switch, the contact inside the travel switch moves, thereby realizing the position detection of the anti-rotation member 120.

[0058] When the position sensor is a proximity sensor, the proximity sensor may include an electromagnetic or photoelectric type, etc. The proximity sensor does not need to contact the anti-rotation part 120. When the anti-rotation part 120 and the proximity sensor are close to a set distance, a switch sends an "action" signal, thereby realizing the position detection of the anti-rotation part 120.

[0059] For example, in the embodiment of the utility model, the position detection component is a photoelectric coupler 400, which has a smaller structure and is easy to install. When the anti-rotation member 120 moves downward to the insertion limit hole 310, the anti-rotation member 120 blocks the optical signal of the photoelectric coupler 400, and the photoelectric coupler 400 sends a switch of an "action" signal to realize the position detection of the anti-rotation member 120.

[0060] Continue reading Figure 5 In some embodiments of the present utility model, the video monitoring device further includes a control component, which is electrically connected to the position detection component and the wire winding, and is used to control the wire winding to be powered on or off according to the position information detected by the position detection component. The control component includes a single-chip microcomputer 500, which is electrically connected to the position detection component and the wire winding, and the control component can also be other components capable of realizing control.

[0061] If the limiting is achieved only by inserting the power-off control anti-rotation part 120 of the guide winding 111 of the anti-rotation mechanism 100 into the limiting hole 310 of the device main body 300, or the limiting is released by pulling the power-on control anti-rotation part 120 of the guide winding 111 of the anti-rotation mechanism 100 out of the limiting hole 310 of the device main body 300, and if the guide winding 111 is forgotten to be energized before starting the machine, the limiting between the base 200 and the device main body 300 of the video surveillance device will not be released. At this time, the motor of the device main body 300 will suffer irreparable damage. In severe cases, the video surveillance device will not work.

[0062] To this end, the embodiment of the utility model is provided with a control component and a position detection component, and the control component is electrically connected to the position detection component and the guide winding 111. When the video monitoring device is powered on, the control component first controls the guide winding 111 to be powered according to the position information of the anti-rotation component 120 detected by the position detection component, so that the anti-rotation component 120 is pulled out of the limit hole 310 of the device body 300, thereby realizing the limit release, avoiding the video monitoring device drive motor from working, causing damage to the drive motor, and saving maintenance costs.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An anti-rotation mechanism, characterized in that: include: An anti-rotation body is mounted on the base of the video surveillance device, and a wire winding is provided inside the anti-rotation body; An anti-rotation member is movably disposed on the anti-rotation body and extends into the interior of the anti-rotation body. When the wire winding loses power, the anti-rotation member is inserted into the device body of the video surveillance device to limit the relative rotation between the device body and the base; When the wire winding is energized, the anti-rotation component is away from the device body of the video surveillance device, and the device body and the base can rotate relative to each other.

2. The anti-rotation mechanism according to claim 1, characterized in that: It also includes at least one guide member, which is arranged on the side wall of the anti-rotation member and is suitable for sliding along a guide groove arranged on the base of the video monitoring device.

3. The anti-rotation mechanism according to claim 2, characterized in that: There are two guide members, and the two guide members are symmetrically arranged along the plane where the axis of the anti-rotation member is located.

4. The anti-rotation mechanism according to claim 2, characterized in that: It also includes an elastic element, which is sleeved on the anti-rotation component, one end of the elastic element abuts against the anti-rotation body, and the other end of the elastic element abuts against the guide component.

5. A video surveillance device, characterized in that: It comprises a base, a device body and the anti-rotation mechanism according to any one of claims 1 to 4; The base is provided with a mounting portion, and the anti-rotation body is provided on the mounting portion; A limiting hole is provided on the device body, the position of the limiting hole corresponds to the position of the mounting portion, and the virtual axis of the limiting hole is not colinear with the rotation axis of the device body.

6. The video surveillance device according to claim 5, characterized in that: It also includes a position detection component, which is arranged on the hole wall of the limiting hole and is used to detect the position of the anti-rotation component.

7. The video surveillance device according to claim 6, characterized in that: The position detection component includes any one of a contact position sensor and a proximity position sensor.

8. The video surveillance device according to claim 7, characterized in that: When the position detection component includes a proximity position sensor, the proximity position sensor is a photocoupler.

9. The video surveillance device according to claim 6, characterized in that: It also includes a control component, which is electrically connected to the position detection component and the wire winding respectively, and is used to control the wire winding to be energized or de-energized according to the position information detected by the position detection component.

10. The video surveillance device according to claim 9, characterized in that: The control component includes a single chip microcomputer, and the single chip microcomputer is electrically connected to the position detection component and the wire winding respectively.

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