A visual image transmission elevator door protection device

Abstract

The present invention discloses a visual image transmission elevator door protection device, comprising a car door body, a car door sill body, a reflective strip body, a first door machine hanging plate body, a diffuse reflection light source body, a second door machine hanging plate body and a CCD photosensitive element body, wherein a car door sill body is arranged at the bottom of the car door body. The present invention solves the problem of the elevator door pinching the hand, avoids the operator's hand being pinched due to improper operation or carelessness, and can effectively make the pinched hand escape from the inside, reduce the harm to the operator, and replace the original light curtain of the elevator through the CCD visual system. The scanning range is increased to form a detection without dead angles, solves the problem of the CCD photosensitive element body not being installed quickly enough, makes it more convenient to install the CCD photosensitive element body, and is also simpler to operate during maintenance and replacement in the later stage, thereby improving the installation and replacement efficiency of the operator.

Description

Technical Field

[0001] The invention relates to the technical field of elevator doors, and in particular to a visual image transmission elevator door protection device. Background Art

[0002] With the development of science and technology, people's material conditions have improved. In residential areas, elevators are used to facilitate residents to go up and down the stairs. By installing light curtains or safety touch panels on the elevator car doors, light curtains are a kind of light-type elevator door safety protection device, which is suitable for passenger elevators and freight elevators to protect the safety of passengers. It consists of four parts: infrared transmitters and receivers installed on both sides of the elevator car door, a power box installed on the top of the car, and a special flexible cable. There are 32 (16) infrared transmitting tubes. Under the control of MCU, the transmitting and receiving tubes are turned on in sequence, and the car door area is continuously scanned from top to bottom to form a dense infrared protection light curtain. When any beam of light is blocked, the control system immediately outputs a door opening signal, and the car door stops closing and reverses to open until the passengers or obstacles leave the warning area. The elevator door can be closed normally, thereby achieving the purpose of safety protection. This can avoid the occurrence of elevator pinching accidents. Multiple infrared transmitting tubes are installed at equal intervals on one side of the light curtain, and the same number of infrared receiving tubes are arranged in the same way on the other side. Each infrared transmitting tube corresponds to a corresponding infrared receiving tube, and they are installed in the same straight line. When there are no obstacles between the infrared transmitting tubes and the infrared receiving tubes on the same straight line, the infrared transmitting tubes The modulated signal (light signal) emitted by the infrared emitting tube can smoothly reach the infrared receiving tube. After the infrared receiving tube receives the modulated signal, the corresponding internal circuit outputs a low level. In the case of obstacles, the modulated signal (light signal) emitted by the infrared emitting tube cannot smoothly reach the infrared receiving tube. At this time, the infrared receiving tube cannot receive the modulated signal, and the corresponding internal circuit outputs a high level. When there is no object passing through the light curtain, the modulated signal (light signal) emitted by all infrared emitting tubes can smoothly reach the corresponding infrared receiving tube on the other side, so that all internal circuits output a low level. In this way, by analyzing the internal circuit state, the information on whether an object exists or not can be detected. According to existing related reports, when taking an elevator, the light curtain often fails to detect a thin rope or similar object. Obstacles do not effectively block the infrared rays emitted by the infrared transmitter. There is an obstacle but the light curtain system cannot detect it, and the door closing action is still executed. After the door is closed, the elevator runs to the registered floor. At this time, the elevator door clamps the obstacle because it detects the obstacle, which is easy to cause dragging in the car, causing safety hazards. Since the visible light wavelength felt by the human eye is 400-760nm, the wavelength below 400 is ultraviolet, and above 760 is infrared. The CCD photosensitive element has a sensitivity range of 350-1100nm and the CMOS photosensitive element has a sensitivity range of 380-840nm. After using the filter, they can work in the ultraviolet light area or the infrared light area. Therefore, the photosensitive element detection is used to replace the original light curtain of the elevator through the CCD visual system. Increase the scanning range and form a detection without blind spots. Therefore, it can be seen that the current elevator door protection device basically meets people's needs, but there are still some problems.

[0003] Question 1: The current elevator door protection device may sometimes cause the operator's hand to be caught when the elevator door is about to close due to the operator's inattention. This may affect the operator's safety.

[0004] Problem 2: The current elevator door protection device is not fast and convenient enough when installing the CCD photosensitive element body, which often makes the operator's work efficiency low. Therefore, there is an urgent need for a visual image transmission elevator door protection device to solve the above problem. Summary of the invention

[0005] The object of the present invention is to provide a visual image transmission elevator door protection device to solve the problems of elevator door pinching fingers and slow installation of CCD photosensitive component body mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a visual image transmission elevator door protection device, comprising a car door body, a car door sill body, a reflective strip body, a first door machine hanging plate body, a diffuse reflection light source body, a second door machine hanging plate body and a CCD photosensitive element body, the bottom end of the car door body is provided with a car door sill body, and the top of the car door sill body is fixedly connected with a reflective strip body, the top of the car door body is fixedly connected with a first door machine hanging plate body, and a diffuse reflection light source body is arranged inside the first door machine hanging plate body, a second door machine hanging plate body is arranged above the car door sill body, and a CCD photosensitive element body is arranged inside the second door machine hanging plate body, and a fixing device is arranged on the outer wall of the car door body, and the fixing device comprises a support plate, a first chamber, a first fixed block, a fixed rod, a second fixed block, a first sliding block, a first spring, a first hinged rod, a pressure plate, a plate, a second hinged rod, a second sliding block, a second spring A spring, a first telescopic column, a second telescopic column, a third spring, a first slide groove, a first sliding block and a third fixed block, the right side of the car door body is fixedly connected to a support plate, and a first chamber is opened inside the support plate, the inner wall of the first chamber is fixedly connected to a first fixed block, and the bottom end of the first fixed block is fixedly connected to a fixing rod, the bottom end of the fixing rod is fixedly connected to the second fixing block, and the bottom end of the second fixed block is fixedly connected to the first spring, the first spring is wound around the outer wall of the fixing rod, and the bottom end of the first spring is fixedly connected to the first sliding block, the fixing rod passes through the inside of the first sliding block, and the right side of the first sliding block is connected to the first hinge rod through a rotating shaft, the end of the first hinge rod away from the first sliding block is connected to the left side of the pressure plate through a rotating shaft, and the back of the first hinge rod is hinged with the second hinge rod, the end of the second hinge rod away from the pressure plate is connected to the second sliding block through a rotating shaft, and the fixing rod passes through the inside of the second sliding block, and the top of the second sliding block is fixedly connected to the second spring.

[0007] Preferably, an adjusting device is provided inside the second door machine hanging plate body, and the adjusting device includes a second chamber, a fourth spring, a support rod, a second slide groove, a second slider, a limit plate, a push block and a fixed plate. A second chamber is provided inside the second door machine hanging plate body, and a fourth spring is fixedly connected to the inner wall of the second chamber, an end of the fourth spring away from the second chamber is fixedly connected to the support rod, a second slide groove is provided on the inner wall of the second chamber, and a second slider is slidably connected inside the second slide groove, a support rod is fixedly connected to the left side of the second slider, and the bottom end of the support rod is fixedly connected to the limit plate, and a push block is fixedly connected to the left side of the limit plate.

[0008] Preferably, a plate is glued to the right side of the pressing plate, and the plate is made of sponge material.

[0009] Preferably, a first telescopic column is fixedly connected to the inner wall of the first chamber, and a second telescopic column is slidably connected inside the first telescopic column, a pressure plate is fixedly connected to the right side of the second telescopic column, and a third spring is wound around the outer wall of the second telescopic column.

[0010] Preferably, a first sliding groove is formed on the inner wall of the first chamber, and a first sliding block is slidably connected inside the first sliding groove, a pressing plate is fixedly connected to the bottom end of the first sliding block, and a third fixing block is attached to the right side of the first sliding block.

[0011] Preferably, a fixing plate is fixedly connected to the bottom end of the second door machine hanging plate body, and a CCD photosensitive component body is attached to the top end of the fixing plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The visual image transmission elevator door protection device is provided with a fixing device support plate, a first chamber, a first fixed block, a fixed rod, a second fixed block, a first sliding block, a first spring, a first hinged rod, a pressure plate, a plate, a second hinged rod, a second sliding block, a second spring, a first telescopic column, a second telescopic column, a third spring, a first slide groove, a first slider and a third fixed block, so that the first slider at the top of the pressure plate slides inside the first slide groove, so that the first hinged rod drives the first sliding block to move on the fixed rod, compresses the first spring to cause elastic deformation, and drives the second hinged rod to move on the fixed rod, compresses the second spring to cause elastic deformation, so as to solve the problem of elevator door clamping hands, avoid the operator's hands being clamped due to improper operation or carelessness, and can effectively remove the clamped hands from the inside, reduce the damage to the operator, and replace the original light curtain of the elevator with the CCD visual system. Increase the scanning range to form a detection without blind spots;

[0014] 2. The visual image transmission elevator door protection device is provided with a second chamber of the adjustment device, a fourth spring, a support rod, a second slide groove, a second slider, a limit plate, a push block and a fixed plate. The push block is first pushed upward to make the second slider on the right side of the support rod slide inside the fixed rod, so that the fourth spring produces elastic deformation for compression, which solves the problem that the CCD photosensitive component main body cannot be installed quickly enough, makes it more convenient to install the CCD photosensitive component main body, and is also simpler to operate during maintenance and replacement in the later stage, thereby improving the installation and replacement efficiency of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the front view activity of the present invention;

[0017] Figure 3 It is a partial cross-sectional schematic diagram of the regulating device of the present invention;

[0018] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 It is a front cross-sectional schematic diagram of the fixing device of the present invention;

[0020] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0021] In the figure: 1, car door body; 2, car door sill body; 3, reflective strip body; 4, first door machine hanging plate body; 5, diffuse reflection light source body; 6, second door machine hanging plate body; 7, CCD photosensitive element body; 811, support plate; 812, first chamber; 813, first fixed block; 814, fixed rod; 815, second fixed block; 816, first sliding block; 817, first spring; 818, first hinged rod; 819, pressure plate; 820, plate; 821, second hinged rod; 822, second sliding block; 823, second spring; 824, first telescopic column; 825, second telescopic column; 826, third spring; 827, first slide groove; 828, first slider; 829, third fixed block; 911, second chamber; 912, fourth spring; 913, support rod; 914, second slide groove; 915, second slider; 916, limit plate; 917, push block; 918, fixed plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-6 An embodiment of the present invention is as follows: a visual image transmission elevator door protection device comprises a car door body 1, a car door sill body 2, a reflective strip body 3, a first door machine hanging plate body 4, a diffuse reflection light source body 5, a second door machine hanging plate body 6 and a CCD photosensitive element body 7, a car door sill body 2 is arranged at the bottom of the car door body 1, and the reflective strip body 3 is fixedly connected to the top of the car door sill body 2, a first door machine hanging plate body 4 is fixedly connected to the top of the car door body 1, and a diffuse reflection light source body 5 is arranged inside the first door machine hanging plate body 4, a second door machine hanging plate body 6 is arranged above the car door sill body 2, and a CCD photosensitive element body 7 is arranged inside the second door machine hanging plate body 6, and a fixing device is arranged on the outer wall of the car door body 1, and the fixing device comprises a support plate 811, a first chamber 812, and a first fixing block 8 13. a fixed rod 814, a second fixed block 815, a first sliding block 816, a first spring 817, a first hinged rod 818, a pressure plate 819, a plate 820, a second hinged rod 821, a second sliding block 822, a second spring 823, a first telescopic column 824, a second telescopic column 825, a third spring 826, a first slide groove 827, a first slider 828 and a third fixed block 829. A support plate 811 is fixedly connected to the right side of the car door body 1, and a first chamber 812 is provided inside the support plate 811. A first fixed block 813 is fixedly connected to the inner wall of the first chamber 812, and a fixed rod 814 is fixedly connected to the bottom end of the first fixed block 813. A second fixed block 815 is fixedly connected to the bottom end of the fixed rod 814. A first spring 817 is fixedly connected to the bottom end of the second fixed block 815. The first spring 817 It is wound around the outer wall of the fixed rod 814, and the bottom end of the first spring 817 is fixedly connected to the first sliding block 816, the fixed rod 814 passes through the inside of the first sliding block 816, and the right side of the first sliding block 816 is connected to the first hinged rod 818 through a rotating shaft, the end of the first hinged rod 818 away from the first sliding block 816 is connected to the left side of the pressure plate 819 through a rotating shaft, and the back of the first hinged rod 818 is hinged to the second hinged rod 821, the end of the second hinged rod 821 away from the pressure plate 819 is connected to the second sliding block 822 through a rotating shaft, the fixed rod 814 passes through the inside of the second sliding block 822, and the top of the second sliding block 822 is fixedly connected to the second spring 823.

[0024] An adjusting device is arranged inside the second door machine hanging plate body 6, and the adjusting device includes a second chamber 911, a fourth spring 912, a support rod 913, a second slide groove 914, a second slider 915, a limit plate 916, a push block 917 and a fixed plate 918. A second chamber 911 is provided inside the second door machine hanging plate body 6, and a fourth spring 912 is fixedly connected to the inner wall of the second chamber 911, and the end of the fourth spring 912 away from the second chamber 911 is fixedly connected to the support rod 913, a second slide groove 914 is provided on the inner wall of the second chamber 911, and a second slider 915 is slidably connected inside the second slide groove 914, a support rod 913 is fixedly connected to the left side of the second slider 915, and a limit plate 916 is fixedly connected to the bottom end of the support rod 913, and a push block 917 is fixedly connected to the left side of the limit plate 916.

[0025] A plate 820 is glued to the right side of the pressure plate 819, and the plate 820 is made of sponge material, which reduces the discomfort of the operator's hand being clamped, and the sponge itself is relatively soft, which protects the operator's hand to a greater extent.

[0026] A first telescopic column 824 is fixedly connected to the inner wall of the first chamber 812, and a second telescopic column 825 is slidably connected inside the first telescopic column 824. A pressure plate 819 is fixedly connected to the right side of the second telescopic column 825, and a third spring 826 is wound around the outer wall of the second telescopic column 825 to increase the bearing capacity when hit by a larger object.

[0027] A first sliding groove 827 is provided on the inner wall of the first chamber 812, and a first sliding block 828 is slidably connected inside the first sliding groove 827. A pressure plate 819 is fixedly connected to the bottom end of the first sliding block 828, and a third fixed block 829 is attached to the right side of the first sliding block 828, so that the speed of the pressure plate 819 is increased when sliding inside the support plate 811, making it easier for the pressure plate 819 to move.

[0028] A fixing plate 918 is fixedly connected to the bottom end of the second door machine hanging plate body 6, and a CCD photosensitive component body 7 is attached to the top end of the fixing plate 918, which serves to limit the CCD photosensitive component body 7 and further serves to support the CCD photosensitive component body 7.

[0029] Working principle: A reflective strip body 3 is installed above the main body 2 of the car door sill, and an infrared (ultraviolet) lamp is installed on the door machine. In the absence of obstruction, the CCD photosensitive component body 7 will sense a bright line. The low-end CCD photosensitive 700 lines on the market, the sensing length is set to 1 diffuse reflection light source body 50mm, then each pixel is 1.5mm, and at the same time, depending on the CCD, the brightness of each pixel has 16-4096 levels, that is, less than 1.5mm of the obstruction will reduce the brightness of the pixel, and more than 1.5mm will block the entire light point. For example, if a finger is extended above the reflective strip body 3, at least 10 consecutive light points will be blocked. Since the door knife will be partially blocked during the door opening and closing process, and in order to reduce the appearance of blind spots, a light-emitting tube is installed under the hanging board where the door knife is located, and it moves with the movement, and a CCD sensor is installed on another door machine hanging board, which remains fixed. The sampling rate of the CCD photosensitive element is >30 times per second, the optical resolution is 1.5mm, and the interpolation resolution is 1.0mm.

[0030] When the hand is clamped, the plate 820 is squeezed by the hand, so that the first slider 828 at the top of the pressure plate 819 slides inside the first slide groove 827, so that the first hinge rod 818 drives the first sliding block 816 to move on the fixed rod 814, compresses the first spring 817 to produce elastic deformation, and the second hinge rod 821 drives the second sliding block 822 to move on the fixed rod 814, compresses the second spring 823 to produce elastic deformation, so that the second telescopic column 825 slides inside the first telescopic column 824, and the third spring 826 produces elastic deformation, and the plate 820 will sink into the support plate 811, and the hand can be pulled out. When the CCD photosensitive element body 7 needs to be quickly fixed, the push block 917 is first pushed upward to make the second slider 915 on the right side of the support rod 913 slide inside the fixed rod 814, so that the fourth spring 912 produces elastic deformation and is compressed.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A visual image transmission elevator door protection device, characterized in that: The invention comprises a car door body (1), a car door sill body (2), a reflective strip body (3), a first door machine hanging plate body (4), a diffuse reflection light source body (5), a second door machine hanging plate body (6) and a CCD photosensitive element body (7); the car door sill body (2) is arranged at the bottom end of the car door body (1), and the reflective strip body (3) is fixedly connected to the top end of the car door sill body (2); the first door machine hanging plate body (4) is fixedly connected to the top end of the car door body (1), and the diffuse reflection light source body (5) is arranged inside the first door machine hanging plate body (4); the second door machine hanging plate body (6) is arranged above the car door sill body (2), and the CCD photosensitive element body (7) is arranged inside the second door machine hanging plate body (6); the outer wall of the car door body (1) A fixing device is provided, and an adjusting device is provided inside the second door machine hanging plate body (6), and the fixing device includes a support plate (811), a first chamber (812), a first fixing block (813), a fixing rod (814), a second fixing block (815), a first sliding block (816), a first spring (817), a first hinged rod (818), a pressure plate (819), a plate (820), a second hinged rod (821), a second sliding block (822), a second spring (823), a first telescopic column (824), a second telescopic column (825), a third spring (826), a first slide groove (827), a first sliding block (828) and a third fixing block (829), and the right side of the car door body (1) is fixedly connected with A support plate (811) is provided with a first chamber (812) inside the support plate (811); a first fixed block (813) is fixedly connected to the inner wall of the first chamber (812); a fixed rod (814) is fixedly connected to the bottom end of the first fixed block (813); a second fixed block (815) is fixedly connected to the bottom end of the fixed rod (814); a first spring (817) is fixedly connected to the bottom end of the second fixed block (815); the first spring (817) is wound around the outer wall of the fixed rod (814); a first sliding block (816) is fixedly connected to the bottom end of the first spring (817); the fixed rod (814) runs through the inside of the first sliding block (816); and the right side of the first sliding block (816) is connected to a first hinge rod (818) via a rotating shaft. The end of the first hinge rod (818) away from the first sliding block (816) is connected to the left side of the pressure plate (819) through a rotating shaft, and the back of the first hinge rod (818) is hinged with a second hinge rod (821), and the end of the second hinge rod (821) away from the pressure plate (819) is connected to the second sliding block (822) through a rotating shaft, and a fixing rod (814) runs through the inside of the second sliding block (822), and a second spring (823) is fixed to the top of the second sliding block (822). The adjusting device includes a second chamber (911), a fourth spring (912), a support rod (913), a second slide groove (914), a second slider (915), a limit plate (916), a push block (917) and a fixing plate (918).A second chamber (911) is provided inside the second door machine hanging plate body (6), and a fourth spring (912) is fixedly connected to the inner wall of the second chamber (911), and one end of the fourth spring (912) away from the second chamber (911) is fixedly connected to a support rod (913), a second slide groove (914) is provided on the inner wall of the second chamber (911), and a second slider (915) is slidably connected inside the second slide groove (914), the left side of the second slider (915) is fixedly connected to the support rod (913), and the bottom end of the support rod (913) is fixedly connected to a limit plate (916), and a push block (917) is fixedly connected to the left side of the limit plate (916).

2. The visual image transmission elevator door protection device according to claim 1, characterized in that: A plate (820) is glued to the right side of the pressing plate (819), and the plate (820) is made of sponge material.

3. The visual image transmission elevator door protection device according to claim 1, characterized in that: A first telescopic column (824) is fixedly connected to the inner wall of the first chamber (812), and a second telescopic column (825) is slidably connected inside the first telescopic column (824), a pressure plate (819) is fixedly connected to the right side of the second telescopic column (825), and a third spring (826) is wound around the outer wall of the second telescopic column (825).

4. The visual image transmission elevator door protection device according to claim 3, characterized in that: The inner wall of the first chamber (812) is provided with a first sliding groove (827), and a first sliding block (828) is slidably connected inside the first sliding groove (827), a pressing plate (819) is fixedly connected to the bottom end of the first sliding block (828), and a third fixing block (829) is attached to the right side of the first sliding block (828).

5. The visual image transmission elevator door protection device according to claim 1, characterized in that: The bottom end of the second door machine hanging plate main body (6) is fixedly connected to a fixing plate (918), and the top end of the fixing plate (918) is attached to a CCD photosensitive component main body (7).

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