Safety protection device

Abstract

The utility model belongs to the technical field of safety protection, and discloses a safety protection device, which comprises a cleaning mechanism and a plurality of detection ends distributed in an array, the plurality of detection ends can form a safety light curtain used for monitoring an operation area, and when limbs or foreign matters enter the operation area and accidentally shield the safety light curtain, the safety light curtain can be monitored. The safety light curtain immediately sends an abnormal signal, so that the operation equipment stops running, and personnel are prevented from being damaged by machinery; the cleaning mechanism comprises a mounting part and a plurality of cleaning parts rotationally mounted on the mounting part, the plurality of cleaning parts are selectively in one-to-one correspondence with the detection ends in the row direction or the column direction of the detection ends, and the mounting part can move in the corresponding column direction or the row direction so that each cleaning part can clean the plurality of detection ends in the corresponding column or row; and the cleaning part is rotationally mounted on the mounting part, so that the detection end can be rotationally cleaned, the cleaning effect is improved, a monitoring blind area is eliminated, and the safety protection reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to safety protection technical field especially relates to a safety protection device. BACKGROUND

[0002] In industrial production, operation equipment such as manipulator can efficiently complete various complex production tasks, and its application is very wide, in order to ensure production safety, usually adopt emergency stop device to provide safety protection for operation equipment operation, emergency stop device can quickly stop operation equipment operation under emergency, to protect personnel safety, prevent operation equipment damage and avoid production accident. The existing emergency stop device is usually provided with multiple light curtain emitters in array distribution on one side of operation area, and multiple light curtain receivers are provided on the other side of operation area and are one-to-one opposite with the light curtain emitters, to form safety light curtain, when safety light curtain is accidentally blocked, system can make a judgment quickly, trigger alarm, and emergency cut off operation equipment operation, to avoid the occurrence of danger.

[0003] In order to ensure the normal formation of safety light curtain, the staff needs to wipe and clean the end of light curtain emitter and light curtain receiver regularly, however, since the light curtain emitter and light curtain receiver are provided with many point positions, on the one hand, the efficiency of manual cleaning is extremely low, on the other hand, since the point positions are numerous, there are wiping dead angles in the wiping process, so it is difficult to ensure the stable formation effect of safety light curtain, there are monitoring blind areas, and further lead to the monitoring effect of operation area is greatly discounted, and it is difficult to effectively guarantee the safety in production process.

[0004] Therefore, it is urgent to provide a safety protection device to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a safety protection device to improve cleaning and maintenance efficiency and cleaning effect, eliminate monitoring blind area, improve the reliability of safety protection, and guarantee production safety.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] A safety protection device comprises:

[0008] Multiple detection ends in array distribution can form safety light curtain for monitoring operation area;

[0009] Cleaning mechanism comprises mounting piece and multiple cleaning pieces rotatably mounted on the mounting piece, multiple cleaning pieces are one-to-one corresponding with detection ends along row direction or column direction of detection ends, and mounting piece can move along corresponding column direction or row direction to make each cleaning piece clean multiple detection ends in corresponding column or row.

[0010] Further, the safety protection device further comprises a support for mounting the detection end, and the cleaning mechanism further comprises a rotating assembly, the rotating assembly comprising a slide rod, a sleeve ring and a rope, the slide rod being arranged on the mounting member, the sleeve ring being rotatably arranged on the slide rod, the cleaning member being connected with the sleeve ring, the rope having a fixed end and a moving end at two ends thereof, the rope being capable of being wound on the sleeve ring, and the fixed end being connected with the support, and the moving end being connected with the sleeve ring, when the mounting member moves away from the fixed end, the rope is capable of driving the sleeve ring to rotate forward.

[0011] Further, the cleaning mechanism further comprises a first elastic member arranged between the sleeve ring and the slide rod, when the mounting member moves towards the fixed end, the first elastic member is capable of driving the sleeve ring to rotate reversely, so that the rope is wound on the sleeve ring.

[0012] Further, the slide rod is movably arranged on the mounting member along a direction close to or away from the support, and the cleaning mechanism further comprises a second elastic member arranged between the slide rod and the mounting member, so that the cleaning member is kept in contact with the detection end by the slide rod.

[0013] Further, a side of the cleaning member close to the detection end is provided with a groove matched with a shape of the detection end; and / or,

[0014] The sleeve ring and the cleaning member are connected by a support rod.

[0015] Further, the cleaning mechanism further comprises a driving assembly for driving the mounting member to move along a column direction or a row direction of the detection end.

[0016] Further, the detection end comprises a plurality of emitters arranged in an array on one side of a working area and a plurality of receivers arranged correspondingly on the other side, and the cleaning mechanism comprises at least two cleaning mechanisms for cleaning the emitters and the receivers respectively.

[0017] Further, the driving assembly of one of the cleaning mechanisms comprises a driving member and a first screw rod, the mounting member is threadedly connected with the first screw rod, and the driving member drives the first screw rod to rotate to drive the mounting member to move.

[0018] Further, the driving assembly of the other cleaning mechanism comprises a synchronous belt and a second screw rod, the mounting member is threadedly connected with the second screw rod, and corresponding positions on the first screw rod and the second screw rod are provided with synchronous wheels, and the two synchronous wheels are capable of tensioning the synchronous belt to drive the second screw rod to rotate.

[0019] Further, the safety protection device further comprises a camera, a buzzer and a control unit, the camera is used for monitoring the work area, and the control unit is in communication connection with the camera, the buzzer, the detection end and work equipment of the work area.

[0020] The utility model discloses the beneficial effect:

[0021] The utility model provides a safety protection device, including cleaning mechanism and multiple detection end of array distribution, multiple detection end can form the safety light curtain for monitoring work area, when personnel body or foreign matter enters work area and forms accidental obstruction to safety light curtain, safety light curtain will immediately send abnormal signal, makes work equipment stop running, avoids personnel and is hurt by machinery, cleaning mechanism includes mounting piece and multiple cleaning piece of rotation installation on mounting piece, and multiple cleaning piece can select along the line direction or column direction of detection end with detection end one to one -to -one correspondence, and mounting piece can move along the corresponding column direction or line direction to make every cleaning piece clean corresponding column or line multiple detection end, thereby improve the cleaning maintenance efficiency to detection end, and cleaning piece rotation installation is on mounting piece, can rotate and clean detection end, is favorable to improvement cleaning effect, thereby eliminate monitoring blind area, improve the reliability of safety protection, guarantee production safety. ACCURACY OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of safety protection device of the utility model,

[0023] Figure 2 It is the structure schematic diagram of sliding assembly of the utility model,

[0024] Figure 3 It is the internal structure schematic diagram of sliding assembly of the utility model,

[0025] Figure 4 It is Figure 1 The enlarged view of A in

[0026] In the drawing,

[0027] 100, bottom plate, 200, work equipment,

[0028] 1, detection end, 11, transmitter, 12, receiver,

[0029] 2, cleaning mechanism, 21, mounting piece, 22, cleaning piece, 221, recess, 23, rotation assembly, 231, sliding rod, 232, collar, 233, rope body, 234, first elastic piece, 235, second elastic piece, 236, support rod, 237, fixed part, 24, drive assembly, 241, drive piece, 242, first screw rod, 243, synchronous belt, 244, second screw rod, 245, synchronous wheel,

[0030] 3, support; 4, camera; 5, buzzer. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in connection with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiment, the terms "up", "down", "right", etc. The orientation or position relationship shown in the drawing is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0035] As Figures 1 to 4As shown, the working device 200 is installed on the bottom plate 100 and can work in the working area on the bottom plate 100. The embodiment provides a safety protection device, which comprises a plurality of detection ends 1 arranged in an array, and the plurality of detection ends 1 can form a safety curtain for monitoring the working area. When a person's limbs or foreign matter enters the working area and unexpectedly blocks the safety curtain, the safety curtain will immediately send an abnormal signal to stop the working device 200 from running, thereby avoiding mechanical injury to the person.

[0036] The safety protection device further comprises a cleaning mechanism 2, which comprises a mounting member 21 and a plurality of cleaning members 22 rotatably mounted on the mounting member 21. The plurality of cleaning members 22 are selectively one-to-one corresponding to the detection ends 1 along the row direction or the column direction of the detection ends 1, and the mounting member 21 can move along the corresponding column direction or row direction to clean the plurality of detection ends 1 in the corresponding column or row, thereby improving the cleaning and maintenance efficiency of the detection ends 1. The cleaning members 22 are rotatably mounted on the mounting member 21 and can rotate to clean the detection ends 1, which is conducive to improving the cleaning effect, thereby eliminating the monitoring blind area and improving the reliability of safety protection and ensuring production safety.

[0037] Further, the safety protection device further comprises a support member 3 for mounting the detection ends 1, which is vertically arranged on the bottom plate 100. The cleaning mechanism 2 further comprises a rotating assembly 23, which comprises a slide rod 231, a sleeve ring 232 and a rope 233. The slide rod 231 is arranged on the mounting member 21, the sleeve ring 232 is rotatably arranged on the slide rod 231, the cleaning member 22 is connected to the sleeve ring 232, the rope 233 has a fixed end and a moving end at two ends, the rope 233 can be arranged around the sleeve ring 232, the fixed end is connected to the support member 3, and the moving end is connected to the sleeve ring 232. When the mounting member 21 moves away from the fixed end, the rope 233 can drive the sleeve ring 232 to rotate forward, so that the cleaning disc automatically rotates during the movement of the mounting member 21 to clean the detection ends 1. The rotating assembly 23 has a simple structure and a clever design, does not need an additional power device, reduces the manufacturing and maintenance costs, saves energy consumption, improves the stability and reliability of the cleaning mechanism 2, simplifies the structure of the overall system while ensuring the cleaning effect.

[0038] Of course, in other embodiments, a motor or other power device can be used to drive the cleaning member 22 to rotate, which is not limited here.

[0039] As Figure 2As shown, the connecting rod 236 is connected between the collar 232 and the cleaning member 22, and has a certain deformation capacity, which can adapt to the hysteresis of rotation between the collar 232 and the cleaning member 22 through deformation, thereby avoiding damage to the cleaning member 22 and the collar 232 caused by rigid connection, and facilitating to improve the service life of the cleaning mechanism 2. Further, the connecting rod 236 is at least two, and the at least two connecting rods 236 are uniformly and spacedly arranged around the slide rod 231, which can improve the stability of the connection between the collar 232 and the cleaning member 22.

[0040] As shown in the figure, Figures 1 to 3 The cleaning mechanism 2 further comprises a first elastic member 234 arranged between the collar 232 and the slide rod 231. When the mounting member 21 moves away from the fixed end, the first elastic member 234 is deformed under stress. When the mounting member 21 moves towards the fixed end, the restoring force of the first elastic member 234 can drive the collar 232 to rotate reversely, so that the rope body 233 is wound on the collar 232, thereby recovering the rope body 233, and the cleaning member 22 is also driven to rotate, thereby further improving the cleaning effect on the detection end 1.

[0041] The first elastic member 234 includes, but is not limited to, a torsional spring or an elastic rope, which is not limited here.

[0042] In this embodiment, the slide rod 231 is movably installed on the mounting member 21 along the direction close to or away from the support 3. The cleaning mechanism 2 further comprises a second elastic member 235 arranged between the slide rod 231 and the mounting member 21, so as to keep the cleaning member 22 in contact with the detection end 1 through the slide rod 231. When the cleaning member 22 contacts the detection end 1, the cleaning member 22 is forced to abut against the slide rod 231 away from the support 3. The elastic force of the second elastic member 235 provides a movable distance for the cleaning member 22 and the slide rod 231, which can ensure the contact effect of the cleaning member 22 and the detection end 1, ensure the wiping strength, and make the cleaning effect better, without affecting the normal movement of the cleaning member 22, and can avoid damage to the detection end 1 caused by excessive pressure.

[0043] The second elastic member 235 includes, but is not limited to, a spring or an elastic column, which is not limited here.

[0044] Specifically, the slide rod 231 is provided with a fixed portion 237 at one end away from the cleaning member 22, so as to facilitate the installation of the second elastic member 235. One end of the second elastic member 235 is connected to the fixed portion 237, and the other end is connected to the mounting member 21. The second elastic member 235 applies a restoring force to the slide rod 231 in the direction close to the mounting member 21, so as to keep the cleaning member 22 in contact with the detection end 1.

[0045] Further, the cleaning piece 22 is provided with a mounting hole near one side of the sliding rod 231, and the sliding rod 231 is rotationally connected with the mounting hole. The sliding rod 231 provides guidance and support for the rotation of the cleaning piece 22, so that the cleaning mechanism 2 is more stable in structure and has better cleaning effect.

[0046] As shown in Figure 3 the embodiment, the cleaning piece 22 is provided with a groove 221 matching the shape of the detection end 1 near one side of the detection end 1, which can improve the adhesion and contact area of the cleaning piece 22 and the detection end 1, and is conducive to improving the cleaning effect.

[0047] As shown in Figure 1 and Figure 4 In order to improve the cleaning efficiency, the cleaning mechanism 2 further includes a driving assembly 24 for driving the mounting piece 21 to move along the column direction or the row direction of the detection end 1, thereby improving the automation degree of the cleaning mechanism 2 and further improving the cleaning efficiency and cleaning effect.

[0048] It is easy to understand that the detection end 1 includes a plurality of emitters 11 arrayed on one side of the working area and a plurality of receivers 12 correspondingly arranged on the other side. The emitters 11 are used for emitting detection light beams, and the receivers 12 are used for receiving the detection light beams emitted by the corresponding emitters 11, thereby forming a safety light curtain. The cleaning mechanism 2 is at least two, respectively corresponding to the emitters 11 and the receivers 12, so as to ensure that the emitting end of the emitter 11 and the receiving end of the receiver 12 are not blocked by dirt, thereby ensuring the formation effect of the safety light curtain.

[0049] In the embodiment, the safety light curtain is an infrared safety light curtain, the emitters 11 are used for emitting infrared light beams, and the receivers 12 are used for receiving the infrared light beams. Alternatively, the safety light curtain includes but is not limited to a laser safety light curtain or an ultrasonic safety light curtain.

[0050] Specifically, the driving assembly 24 of one of the cleaning mechanisms 2 includes a driving piece 241 and a first lead screw 242. The mounting piece 21 is threadedly connected with the first lead screw 242, and the driving piece 241 drives the first lead screw 242 to rotate to drive the mounting piece 21 to move, thereby driving the cleaning piece 22 to move and automatically clean the plurality of detection ends 1.

[0051] Further, the driving assembly 24 of the other cleaning mechanism 2 includes a synchronous belt 243 and a second lead screw 244. The mounting piece 21 is threadedly connected with the second lead screw 244. Corresponding positions on the first lead screw 242 and the second lead screw 244 are provided with synchronous wheels 245. The two synchronous wheels 245 jointly tension the synchronous belt 243 to drive the second lead screw 244 to rotate. Through the arrangement of the synchronous belt 243 and the synchronous wheels 245, one driving piece 241 can drive two cleaning mechanisms 2 to operate synchronously, which is helpful to improve the stability of the system, simplify the structure of the equipment, and reduce the production cost.

[0052] The driving member 241 includes, but is not limited to, a motor, a hydraulic motor or a pneumatic motor, etc.

[0053] As shown in Figure 1 To improve the reliability of the safety protection of the work area, the safety protection device further comprises a camera 4, a buzzer 5 and a control unit, the camera 4 is used for monitoring the work area, the control unit is in communication connection with the camera 4, the buzzer 5, the detection end 1 and the work equipment 200 of the work area, when the camera 4 monitors that the work area appears the phenomenon of personnel intrusion, or the detection end 1 detects that the safety light curtain is accidentally blocked, the control unit can timely disconnect the work equipment 200 running, and drive the buzzer 5 to alarm, prompt the worker to check the work area, and the worker can remotely observe the work area through the camera 4.

[0054] The control unit includes, but is not limited to, a PLC controller or an industrial computer, etc.

[0055] Specifically, in the embodiment, the model of the camera 4 is DS-2CD2T47G0E-I8, has behavior analysis and intelligent tracking effect, and can automatically identify the abnormal situation of the work area. Of course, in other embodiments, other cameras 4 with behavior analysis and intelligent tracking function can also be used, which are not limited here.

[0056] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be carried out without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A safety guard comprising: The application relates to a safety protection device for a working area. The safety protection device comprises a plurality of detection ends (1) arranged in an array and capable of forming a safety light curtain for monitoring the working area; a cleaning mechanism (2) comprising a mounting member (21) and a plurality of cleaning members (22) rotatably mounted on the mounting member (21), the plurality of cleaning members (22) being selectively in one-to-one correspondence with the detection ends (1) along a row direction or a column direction of the detection ends (1), and the mounting member (21) being capable of moving along the corresponding column direction or row direction to clean the detection ends (1) in the corresponding column or row. The safety protection device further comprises a support member (3) for mounting the detection ends (1), and the cleaning mechanism (2) further comprises a rotating assembly (23), the rotating assembly (23) comprising a slide rod (231), a sleeve ring (232) and a rope (233), the slide rod (231) being arranged on the mounting member (21), the sleeve ring (232) being rotatably sleeved on the slide rod (231), the cleaning member (22) being connected with the sleeve ring (232), the rope (233) having a fixed end and a moving end at two ends thereof, the rope (233) being capable of being wound on the sleeve ring (232), and the fixed end being connected with the support member (3) and the moving end being connected with the sleeve ring (232), when the mounting member (21) moves away from the fixed end, the rope (233) can drive the sleeve ring (232) to rotate forward.

2. The safety shield of claim 1, wherein, The cleaning mechanism (2) further comprises a first elastic member (234) arranged between the sleeve ring (232) and the slide rod (231), when the mounting member (21) moves towards the fixed end, the first elastic member (234) can drive the sleeve ring (232) to rotate reversely, so that the rope (233) is wound on the sleeve ring (232).

3. The safety shield of claim 2, wherein, The slide rod (231) is movably arranged on the mounting member (21) along a direction close to or away from the support member (3), and the cleaning mechanism (2) further comprises a second elastic member (235) arranged between the slide rod (231) and the mounting member (21), so that the cleaning member (22) is kept in contact with the detection end (1) through the slide rod (231).

4. The safety shield of claim 2, wherein, The side of the cleaning member (22) close to the detection end (1) is provided with a groove (221) matched with the shape of the detection end (1); and / or, 5. The safety shield of claim 2, wherein, The sleeve ring (232) and the cleaning member (22) are connected through a support rod (236). The cleaning mechanism (2) further comprises a driving assembly (24) for driving the mounting member (21) to move along the column direction or the row direction of the detection ends (1).

6. The safety shield of claim 1, wherein, The detection ends (1) comprise a plurality of emitters (11) arranged in an array on one side of the working area and a plurality of receivers (12) arranged on the other side, and the cleaning mechanism (2) is at least two, which are respectively used for cleaning the emitters (11) and the receivers (12).

7. The safety guard of claim 6, wherein, ​ 8. The safety guard of claim 7, wherein, The driving assembly (24) of one of the cleaning mechanisms (2) comprises a driving member (241) and a first screw rod (242), the mounting member (21) is threadedly connected with the first screw rod (242), and the driving member (241) drives the first screw rod (242) to rotate to drive the mounting member (21) to move.

9. The safety guard of claim 8, wherein, The driving assembly (24) of another of the cleaning mechanisms (2) comprises a synchronous belt (243) and a second screw rod (244), the mounting member (21) is threadedly connected with the second screw rod (244), corresponding positions on the first screw rod (242) and the second screw rod (244) are provided with synchronous wheels (245), and the two synchronous wheels (245) jointly tension the synchronous belt (243) to drive the second screw rod (244) to rotate.

10. The safety guard according to any one of claims 1 to 9, characterized in that The safety protection device further comprises a camera (4), a buzzer (5) and a control unit, the camera (4) is used for monitoring the working area, and the control unit is in communication connection with the camera (4), the buzzer (5), the detection end (1) and working equipment (200) in the working area.

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