Entrance guard device of elevator

Abstract

The embodiment of the invention provides an access control device of an elevator. The access control device of the elevator comprises a support, and the support comprises a first supporting column, a second supporting column and a connecting rod connected with the first supporting column and the second supporting column, the bracket is arranged at an inlet of the elevator; the heights of the first supporting column and the second supporting column are matched with the height of the elevator inlet, and the length of the connecting rod is matched with the width of the elevator inlet; the first detection assembly is arranged at the end, close to the first supporting column, of the connecting rod, the first detection assembly comprises a signal transmitter, and the signal transmitter is used for transmitting a photoelectric signal; the second detection assembly is arranged at the end, close to the second supporting column, of the connecting rod and comprises a signal receiver, and the signal receiver is used for detecting whether the photoelectric signal transmitted by the signal transmitter is received or not and outputting an abnormal signal when the photoelectric signal is not received. The abnormal signal is used for indicating that the size of the material passing through the bracket does not meet requirements.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece transportation, and in particular to a door control device for a hoist. Background Art

[0002] With the development of technology, most workpieces do not need to be moved manually, but are transported by elevators. In the existing technology, when elevators are used to transport materials across floors, it is very likely that a collision accident will occur during the transportation process due to improper placement of materials in the tooling vehicle or the material size exceeds the transportable size of the elevator, resulting in damage to the elevator or materials, causing asset losses and affecting subsequent material supply. Summary of the invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a door control device for an elevator that overcomes the above problems or at least partially solves the above problems.

[0004] In order to solve the above problems, the embodiment of the present invention discloses a door control device for a hoist, comprising:

[0005] A bracket, the bracket comprising a first pillar and a second pillar placed vertically, and a connecting rod respectively connected to the first pillar and the second pillar; the bracket is arranged at the entrance of the elevator; the height of the first pillar and the second pillar matches the height of the entrance of the elevator, and the length of the connecting rod matches the width of the entrance of the elevator;

[0006] A first detection component, the first detection component is arranged at one end of the connecting rod close to the first pillar, the first detection component comprises a signal transmitter, and the signal transmitter is used to transmit a photoelectric signal;

[0007] The second detection component is arranged at one end of the connecting rod close to the second pillar, and the second detection component includes a signal receiver, and the signal receiver is used to detect whether the photoelectric signal emitted by the signal transmitter is received, and output an abnormal signal when the photoelectric signal is not received, and the abnormal signal is used to indicate that the size of the material passing through the bracket does not meet the requirements.

[0008] Optionally, the first detection component further includes:

[0009] A first mounting plate, a first detection rod reset block, a first detection rod, and a first photoelectric baffle;

[0010] The signal transmitter is arranged on the first mounting plate, a first through hole is arranged on the first mounting plate, and the signal transmitter is used to transmit the photoelectric signal to the signal receiver through the first through hole;

[0011] The first detection rod reset block is arranged on the first mounting plate, and the first detection rod reset block is provided with a first groove, and the diameter of the first groove matches the diameter of the first detection rod;

[0012] The first detection rod is fixed in the groove of the first detection rod reset block, and the first detection rod is used to detect that it moves in a direction away from the groove when it is hit by the material, and drive the first photoelectric baffle to move, so that the first photoelectric baffle blocks the first through hole;

[0013] The first photoelectric baffle is disposed on the first detection rod. The first photoelectric baffle is provided with a second through hole. The second through hole is concentrically disposed with the first through hole.

[0014] Optionally, the first detection rod is fixed in the first groove of the first detection rod reset block by a first reset screw, and the first detection rod is used to detect that it is rotated and moved in a direction away from the first groove with the first reset screw as the axis when being hit by the material.

[0015] Optionally, a compression nut is installed on the first reset screw, and the compression nut is installed between the first mounting plate and the nut of the first reset screw;

[0016] The first detection rod is used for rotating and moving in a direction approaching the groove with the first reset screw as the axis under the action of the compression nut when it is detected that the material is removed, until it is reset into the first groove.

[0017] Optionally, the signal receiver and the signal transmitter are symmetrically arranged, and the height of the signal receiver from the ground is the same as the height of the signal transmitter from the ground;

[0018] The signal receiver is used to generate the abnormal signal when the height of the material is higher than the height of the signal receiver from the ground.

[0019] Optionally, the second detection component also includes a second mounting plate; the signal receiver is arranged on the second mounting plate, and a third through hole is provided on the second mounting plate, and the signal receiver is used to receive the photoelectric signal through the third through hole when the height of the material is lower than the height of the signal receiver from the ground.

[0020] Optionally, the second detection assembly further includes a second detection rod reset block, a second detection rod, and a second photoelectric baffle;

[0021] The second detection rod reset block is arranged on the second mounting plate, and the second detection rod reset block is provided with a second groove, and the diameter of the second groove matches the diameter of the second detection rod;

[0022] The second detection rod is fixed in the groove of the second detection rod reset block, and the second detection rod is used to detect that it moves in a direction away from the groove when it is hit by the material, and drive the second photoelectric baffle to move, so that the second photoelectric baffle blocks the third through hole;

[0023] The second photoelectric baffle is disposed on the second detection rod, and the second photoelectric baffle is provided with a fourth through hole, and the fourth through hole is concentrically disposed with the third through hole.

[0024] Optionally, the second detection rod is fixed in the second groove of the second detection rod reset block by a second reset screw, and the second detection rod is used to detect that it is rotated and moved in a direction away from the second groove with the second reset screw as the axis when being hit by the material.

[0025] Optionally, the second detection component is connected to a hoist, and the second detection component is used to send the abnormal signal to the hoist, and the hoist is used to suspend operation according to the abnormal signal.

[0026] Optionally, the elevator comprises a programmable logic controller, and the programmable logic controller is used to prohibit the material from entering the elevator according to the abnormal signal.

[0027] The present invention discloses a door access control device for an elevator. The present invention transmits photoelectric signals through a signal transmitter of a first detection component and a signal receiver of a second detection component. The device can effectively detect the size of materials passing through a bracket. If the size of the material is too large and blocks the transmission of the photoelectric signal, the signal receiver will not be able to receive the signal, thereby outputting an abnormal signal to indicate that the material size does not meet the requirements, thereby avoiding collision accidents caused by improper material size and posture. The design of the bracket makes the height of the first support and the second support match the height of the elevator entrance, and the length of the connecting rod matches the width of the elevator entrance. This precise matching ensures that the detection component can be accurately installed at the entrance of the elevator, thereby improving the accuracy and reliability of the detection. In the present invention, once it is detected that the material size does not meet the requirements, the system will immediately output an abnormal signal without manual intervention, which not only improves work efficiency but also reduces the possibility of human error. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural block diagram of a door control device for an elevator provided by an embodiment of the present invention is shown;

[0029] Figure 2 It is a structural schematic diagram of a hoist and a door access control device provided by an embodiment of the present invention;

[0030] Figure 3is a structural block diagram of a first detection component provided by an embodiment of the present invention;

[0031] Figure 4 It is a structural block diagram of a second detection component provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] One of the core concepts of an embodiment of the present invention is that a door access control device for an elevator is proposed. The present invention transmits photoelectric signals through a signal transmitter of a first detection component and a signal receiver of a second detection component. The device can effectively detect the size of materials passing through the bracket. If the material size is too large and blocks the transmission of the photoelectric signal, the signal receiver will not be able to receive the signal, thereby outputting an abnormal signal to indicate that the material size does not meet the requirements, thereby avoiding collision accidents caused by improper material size and posture; the design of the bracket makes the height of the first pillar and the second pillar match the height of the elevator entrance, and the length of the connecting rod matches the width of the elevator entrance. This precise matching ensures that the detection component can be accurately installed at the entrance of the elevator, thereby improving the accuracy and reliability of the detection. In the present invention, once it is detected that the material size does not meet the requirements, the system will immediately output an abnormal signal without manual intervention, which not only improves work efficiency but also reduces the possibility of human error.

[0034] Reference Figure 1 , shows a structural block diagram of a door control device 10 for an elevator provided by an embodiment of the present invention, which may include:

[0035] The support 101 includes a first support 1011 and a second support 1012 which are placed vertically, and a connecting rod 1013 which is respectively connected to the first support 1011 and the second support 1012; the support 101 is arranged at the entrance of the elevator; the height of the first support 1011 and the second support 1012 matches the height of the elevator entrance, and the length of the connecting rod 1013 matches the width of the elevator entrance.

[0036] In the embodiment of the present invention, the elevator is a mechanical equipment used to transport materials vertically or obliquely, and is widely used in industrial production and logistics transportation. It is mainly used to lift materials from one height to another, or to transport materials between different floors. The elevator can handle various types of materials, including bulk materials, packaged materials, liquids, etc.

[0037] The support 101 may include a first support 1011, a second support 1012, and a connecting rod 1013, wherein the first support 1011 and the connecting rod 1013 are in a right angle relationship, the second support 1011 and the connecting rod 1013 are in a right angle relationship, the first support 1011 and the second support 1012 have the same height, and at the same time, in order to ensure that the material can enter the elevator, the size of the access control device and the elevator should be corresponding, that is, the height of the first support 1011 and the second support 1012 should match the height of the elevator entrance, and the length of the connecting rod 1013 should match the width of the elevator entrance. By matching the height of the first support and the second support with the height of the elevator entrance, and matching the length of the connecting rod with the width of the elevator entrance, it is ensured that the access control device can accurately cover the entrance of the elevator. This precise size matching helps prevent dimensional deviations when the material passes through the elevator entrance, thereby ensuring that the material can pass smoothly and safely.

[0038] like Figure 2 , showing a structural schematic diagram of a hoist and an access control device provided by an embodiment of the present invention. The material enters the access control device and the hoist from the track. When the material meets the conditions for passing through the access control device, it enters the hoist to complete the next step. Since the height of the first support 1011 and the second support 1012 matches the height of the hoist entrance, the length of the connecting rod 1013 matches the width of the hoist entrance, that is, the size of the access control device matches the size of the hoist entrance.

[0039] The first detection component 102 is disposed at one end of the connecting rod 1013 close to the first pillar 1011 . The first detection component 102 includes a signal transmitter 1021 , and the signal transmitter 1021 is used to transmit a photoelectric signal.

[0040] In the embodiment of the present invention, it can be seen that the first detection component 102 is arranged at one end of the connecting rod 1013 close to the first pillar 1011. The first detection component 102 may include a signal transmitter 1021. The signal transmitter 1021 is a specific device for transmitting a photoelectric signal. The photoelectric signal generally refers to a signal transmitted in the form of light, which may be visible light, infrared light, or other types of light waves. The signal transmitter 1021 may include a light source (such as an LED or a laser diode) and a circuit for generating and controlling the emission of the light signal.

[0041] The first detection component 103 is arranged at one end of the connecting rod 1013 close to the second pillar 1012. The first detection component 103 includes a signal receiver 1031. The signal receiver 1031 is used to detect whether a photoelectric signal emitted by a signal transmitter is received. When the photoelectric signal is not received, an abnormal signal is output. The abnormal signal is used to indicate that the size of the material passing through the bracket 101 does not meet the requirements.

[0042] In the embodiment of the present invention, Figure 1 The first detection component is arranged at one end of the connecting rod close to the second pillar 1012. The first detection component may include a signal receiver 1031. The signal receiver 1031 is used to detect whether the photoelectric signal emitted by the signal transmitter is received. When the photoelectric signal is not received, an abnormal signal is output, indicating that the material blocks the transmission of the photoelectric signal when passing through the access control device. The signal receiver 1031 will not be able to receive the photoelectric signal, thereby triggering the output of an abnormal signal, indicating that the material size does not meet the requirements. At this time, an abnormal signal can be generated to indicate that the size of the material passing through the bracket 101 does not meet the requirements.

[0043] Users can stop the elevator operation according to abnormal signals: once an abnormal signal is detected, the elevator operation should be stopped immediately to prevent oversized or irregularly sized materials from continuing to enter the elevator, which may cause equipment damage or safety accidents.

[0044] Check material size: Check the size of the material currently passing through the elevator to confirm whether it is oversized. If it is found that the material size does not meet the requirements, it should be removed or readjusted to the required size.

[0045] Remove obstacles: Check whether there are other obstacles at the entrance of the elevator that block the transmission of the light signal, such as dust, debris or other foreign matter, and clean them up in time.

[0046] Check the access control device: Check whether the signal transmitter and signal receiver of the access control device are working properly, including checking whether the light source is damaged, whether the circuit is well connected, whether the receiver is sensitive, etc.

[0047] Maintenance and calibration: Regularly maintain and calibrate the access control device to ensure its long-term stable operation. This includes cleaning optical components, checking and replacing worn parts, adjusting signal strength, etc.

[0048] Record and analyze: record the occurrence of abnormal signals and analyze their causes so that preventive measures can be taken in the future to reduce the occurrence of similar problems. By responding to abnormal signals in a timely manner and taking appropriate measures, the present invention allows users to effectively manage the operation of the elevator, ensure the efficiency and safety of material handling, and extend the service life of the equipment.

[0049] The present invention discloses a door access control device for an elevator. The present invention transmits photoelectric signals through a signal transmitter of a first detection component 102 and a signal receiver 1031 of the first detection component 103. The device can effectively detect the size of a material passing through a bracket 101. If the size of the material is too large and blocks the transmission of the photoelectric signal, the signal receiver 1031 will not be able to receive the signal, thereby outputting an abnormal signal to indicate that the material size does not meet the requirements, thereby avoiding collision accidents caused by improper material size and posture; the design of the bracket 101 makes the height of the first support 1011 and the second support 1012 match the height of the elevator entrance, and the length of the connecting rod 1013 matches the width of the elevator entrance. This precise matching ensures that the detection component can be accurately installed at the entrance of the elevator, thereby improving the accuracy and reliability of the detection. In the present invention, once it is detected that the material size does not meet the requirements, the system will immediately output an abnormal signal without manual intervention, which not only improves work efficiency but also reduces the possibility of human error.

[0050] In an embodiment of the present invention, the first detection assembly 102 further includes: a first mounting plate, a first detection rod reset block, a first detection rod, and a first photoelectric baffle;

[0051] like Figure 3 , shows a structural block diagram of a first detection assembly 102 provided in an embodiment of the present invention, the first detection assembly 102 may further include a first mounting plate 1022, a first detection rod reset block 1023, a first detection rod 1024, and a first photoelectric baffle 1025;

[0052] The signal transmitter is disposed on the first mounting plate, and a first through hole is disposed on the first mounting plate. The signal transmitter is used to transmit the photoelectric signal to the signal receiver 1031 through the first through hole;

[0053] In the embodiment of the present invention, a first through hole 10221 is provided on the first mounting plate 1022 . After the signal transmitter 1021 generates a photoelectric signal, the photoelectric signal can be transmitted to the signal receiver 1031 through the first through hole 10221 .

[0054] The first detection rod reset block 1023 is disposed on the first mounting plate 1022 , and the first detection rod reset block 1023 is provided with a first groove, and the diameter of the first groove matches the diameter of the first detection rod;

[0055] In the embodiment of the present invention, the first detection rod reset block 1023 can be made of elastic polyethylene material. The first detection rod reset block 1023 is arranged on the first mounting plate 1022. The first detection rod reset block 1023 is provided with a first groove. The diameter of the first groove matches the diameter of the first detection rod, so that the first detection rod 1024 can roll in the first groove, ensuring that the first detection rod 1024 can be accurately positioned and reset.

[0056] The first detection rod is fixed in the first groove of the first detection rod reset block. The first detection rod is used to detect movement away from the groove when being hit by materials and drive the first photoelectric baffle to move so that the first photoelectric baffle blocks the first through hole.

[0057] In the embodiment of the present invention, the first detection rod 1024 is fixed in the first groove of the first detection rod reset block 1023. When the first detection rod 1024 detects that it is hit by the material, it moves in the direction away from the first groove and drives the first photoelectric baffle 1025 to move. The movement of the first photoelectric baffle 1025 will cause it to block the first through hole 10221. The first through hole is the path for the transmission of the optical signal. When the first photoelectric baffle blocks the through hole, the photoelectric signal will not be able to pass through, thereby interrupting the transmission of the photoelectric signal. At this time, the photoelectric signal generated by the signal transmitter 1021 cannot be transmitted to the second detection component 103 because it is blocked by the first photoelectric baffle. At this time, the second detection component 103 can generate an abnormal signal, and the user can process it according to the abnormal signal, thereby ensuring the safety of the elevator.

[0058] The first photoelectric baffle 1025 is disposed on the first detection rod 1024 . The first photoelectric baffle 1025 is provided with a second through hole, and the second through hole is concentrically disposed with the first through hole.

[0059] In an embodiment of the present invention, the first photoelectric baffle 1025 can be arranged on the first detection rod 1024, and the first photoelectric baffle 1025 is provided with a second through hole 10251, and the second through hole 10251 is concentrically arranged with the first through hole 10221. When the size of the material does not exceed the limit of the access control device, the photoelectric signal generated by the signal transmitter 1021 can be output through the first through hole 10221 and the second through hole 10251. When the width of the material exceeds the limit of the access control device, the first photoelectric baffle 1025 will block the first through hole 10221, thereby interrupting the transmission of the photoelectric signal.

[0060] When the first detection rod 1024 moves due to material collision, the first photoelectric baffle 1025 moves accordingly, thereby blocking or partially blocking the first through hole. Since the second through hole is concentric with the first through hole, the movement of the photoelectric baffle can accurately control the blocking of the light signal, ensure the accuracy of signal interruption, and provide accurate photoelectric signal control and material collision detection functions for the access control device of the elevator.

[0061] In an embodiment of the present invention, the first detection rod is fixed in the first groove of the first detection rod reset block by a first reset screw, and the first detection rod is used to detect the rotation movement of the first reset screw away from the first groove when being hit by the material.

[0062] In the embodiment of the present invention, the first detection rod 1024 is fixed in the first groove of the first detection rod reset block 1023 by the first reset screw 1026. The first detection rod 1024 is used to detect when it is hit by a material and rotates and moves in a direction away from the first groove with the first reset screw 1026 as the axis. The first detection rod 1024 is designed to sensitively respond to the collision of the material, thereby triggering the subsequent movement of the first photoelectric baffle 1025, so that the first photoelectric baffle 1025 blocks the photoelectric signal.

[0063] It should be noted that screws, also known as screws, are tools that use the physics and mathematical principles of the inclined circular rotation of an object and the friction force to gradually fasten objects and machine parts. Screws are a general term for fasteners and a daily colloquialism. Screws are an indispensable industrial necessity in daily life: such as the very small screws used in cameras, glasses, clocks, electronics, etc.; general screws for televisions, electrical products, musical instruments, furniture, etc.; large screws and nuts are used in engineering, construction, and bridges; transportation equipment, airplanes, trams, cars, etc. use both large and small screws.

[0064] The first reset screw is mainly made of three materials: carbon steel, stainless steel and copper. First, carbon steel, low carbon steel, medium carbon steel, high carbon steel and alloy steel are distinguished by the carbon content in carbon steel: 1. Low carbon steel C% ≤ 0.25% is usually called A3 steel in China. It is basically called 1008, 1015, 1018, 1022, etc. abroad. It is mainly used for products without hardness requirements such as 4.8 grade bolts and 4 grade nuts, small screws, etc. (Note: Drilling nails are mainly made of 1022 material.); 2. Medium carbon steel 0.25%; 3. High carbon steel C% ≥ 0.45%. It is basically not used in the market; 4. Alloy steel: Add alloy elements to ordinary carbon steel to increase some special properties of steel: such as 35, 40 chrome molybdenum, SCM435, 10B38, Fangsheng screws mainly use SCM435 chrome molybdenum alloy steel, the main components are C, Si, Mn, P, S, Cr, Mo.

[0065] 2. Stainless steel. Performance level: 45, 50, 60, 70, 80

[0066] 1. Mainly divided into austenite (18% Cr, 8% Ni) with good heat resistance, good corrosion resistance and good weldability.

[0067] A1, A2, A4

[0068] 2. Martensite, 13% Cr has poor corrosion resistance, high strength and good wear resistance. C1, C2, C4 ferritic stainless steel, 18% Cr has good forging properties and stronger corrosion resistance than martensite. The imported materials on the market are mainly from Japan, and are mainly divided into SUS302, SUS304, and SUS316 according to grades.

[0069] 3. Common copper materials are brass and zinc-copper alloy. H62, H65 and H68 copper are mainly used as standard parts in the market.

[0070] The specific material of the first reduction screw can be selected according to user needs.

[0071] In one embodiment of the present invention, a compression nut is installed on the first reset screw 1026, and the compression nut is installed between the first mounting plate and the nut of the first reset screw; the first detection rod is used to rotate and move in the direction approaching the groove with the first reset screw as the axis under the action of the compression nut when it detects that the material has been removed, until it is reset to the first groove.

[0072] In the embodiment of the present invention, a compression nut is installed on the first reset screw 1026, and the compression nut is installed between the first mounting plate 1022 and the nut of the first reset screw 1026; the first detection rod 1024 is used to rotate and move in the direction close to the groove with the first reset screw 1026 as the axis under the action of the compression nut when it detects that the material has been removed, until it is reset to the first groove. The action of the compression nut ensures that when the material is removed by the user, the first detection rod can be accurately reset to the first groove under the action of gravity. Even if it rotates and moves after being hit by the material, the first detection rod 1024 can return to its original position through the elastic force of the compression nut to prepare for the next detection.

[0073] The design of the compression nut in the present invention helps to increase the resetting speed. Since the compression nut provides a certain elastic force and resistance, the detection rod can be quickly reset after the material is manually removed, reducing the system downtime caused by the resetting delay.

[0074] In one embodiment of the present invention, the signal receiver 1031 and the signal transmitter 1021 are symmetrically arranged, and the height of the signal receiver 1031 from the ground is the same as the height of the signal transmitter 1021 from the ground; the signal receiver 1031 is used to generate an abnormal signal when the height of the material is higher than the height of the signal receiver 1031 from the ground.

[0075] In the embodiment of the present invention, the signal receiver 1031 and the signal transmitter 1021 are symmetrically arranged, that is, the height of the signal transmitter 1021 from the ground is the same as the height of the signal receiver 1031 from the ground. This symmetrical arrangement ensures uniform coverage and accurate detection of the signal.

[0076] In one embodiment of the present invention, the second detection component 103 also includes a second mounting plate 1032; the signal receiver 1031 is disposed on the second mounting plate 1032, and a third through hole is disposed on the second mounting plate. The signal receiver 1031 is used to receive the photoelectric signal through the third through hole when the height of the material is lower than the height of the signal receiver 1031 from the ground.

[0077] like Figure 4 , shows a structural block diagram of a second detection component 103 provided in an embodiment of the present invention. The second detection component 103 may also include a second mounting plate 1032; a signal receiver 1031 is arranged on the second mounting plate 1032, and a third through hole 10321 is arranged on the second mounting plate 1032. The signal receiver 1031 is used to receive the photoelectric signal through the third through hole 10321 when the height of the material is lower than the height of the signal receiver 1031 from the ground.

[0078] In one embodiment of the present invention, the second detection component 103 also includes a second detection rod reset block, a second detection rod, and a second photoelectric baffle; the second detection rod reset block is arranged on the second mounting plate, and the second detection rod reset block is provided with a second groove, and the diameter of the second groove matches the diameter of the second detection rod; the second detection rod is fixed in the groove of the second detection rod reset block, and the second detection rod is used to detect movement away from the groove when being hit by the material, and drive the first photoelectric baffle to move so that the first photoelectric baffle blocks the first through hole; the second photoelectric baffle is arranged on the second detection rod, and the second photoelectric baffle is provided with a fourth through hole, and the fourth through hole is concentrically arranged with the third through hole.

[0079] In the embodiment of the present invention, the second detection component 103 can also include a second detection rod reset block 1033, a second detection rod 1034, and a second photoelectric baffle 1035. The second detection rod reset block 1033 is arranged on the second mounting plate 1032. The second detection rod reset block 1033 is provided with a second groove, and the diameter of the second groove matches the diameter of the second detection rod; thereby, the second detection rod 1034 can roll in the second groove, ensuring that the second detection rod 1034 can be accurately positioned and reset.

[0080] The second detection rod 1034 is fixed in the groove of the second detection rod reset block 1033 . The second detection rod 1034 is used to detect movement away from the groove when being hit by materials, and drive the second photoelectric baffle 1035 to move so that the second photoelectric baffle 1035 blocks the third through hole 10321 .

[0081] The second detection rod 1034 is fixed in the second groove of the second detection rod reset block 1033. When the second detection rod 1034 detects that it is hit by the material, it moves in the direction away from the second groove and drives the second photoelectric baffle 1035 to move. The movement of the second photoelectric baffle 1035 will cause it to block the third through hole 10321. The third through hole is the path for the transmission of the photoelectric signal. When the third photoelectric baffle blocks the through hole, the photoelectric signal will not be able to pass through, thereby interrupting the transmission of the photoelectric signal. At this time, the second detection component 103 cannot receive the photoelectric signal transmitted by the first detection component 102. At this time, the photoelectric signal transmitted from the signal transmitter 1021 to the second detection component is blocked by the second photoelectric baffle and cannot be transmitted to the second detection component 103. At this time, the second detection component 103 can generate an abnormal signal, and the user can process it according to the abnormal signal to ensure the safety of the elevator.

[0082] The second photoelectric baffle 1035 is disposed on the second detection rod 1034. The second photoelectric baffle 1035 is provided with a fourth through hole 10351. The fourth through hole 10351 is concentrically disposed with the third through hole 10321. When the size of the material does not exceed the limit of the access control device, the photoelectric signal generated by the signal transmitter 1021 can be output through the first through hole 10221 and the second through hole 10251, and input to the signal receiver 1031 through the third through hole 10321 and the fourth through hole 10351.

[0083] When the width of the material exceeds the limit of the access control device, the second photoelectric baffle 1035 will block the third through hole 10321, thereby interrupting the transmission of the photoelectric signal.

[0084] In one embodiment of the present invention, the second detection rod is fixed in the second groove of the second detection rod reset block by a second reset screw, and the second detection rod is used to detect the rotation movement of the second reset screw away from the second groove when being hit by the material.

[0085] In an embodiment of the present invention, the second detection rod 1034 is fixed in the second groove of the second detection rod reset block 1033 by a second reset screw 1036. The second detection rod 1034 is used to detect when it is hit by a material and rotates in the direction axially away from the second groove with the second reset screw 1036 as the axis. Through this design, the second detection rod 1034 can sensitively respond to the collision of the material, thereby triggering the subsequent movement of the second photoelectric baffle 1035, so that the second photoelectric baffle 1035 blocks the photoelectric signal.

[0086] In one embodiment of the present invention, a compression nut 1037 is installed on the second reset screw 1036, and the compression nut 1037 is installed between the second mounting plate 1032 and the nut of the second reset screw 1036; the second detection rod is used to rotate and move in the direction of approaching the second groove with the second reset screw 1036 as the axis under the action of the compression nut 1037 when it detects that the material has been removed, until it is reset to the second groove.

[0087] In the embodiment of the present invention, a compression nut 1037 is installed on the second reset screw 1036, and the compression nut 1037 is installed between the first mounting plate 1032 and the nut of the first reset screw 1036; the second detection rod is used to rotate and move in the direction close to the second groove with the second reset screw 1036 as the axis under the action of the compression nut 1037 when it detects that the material has been removed, until it is reset to the second groove. The action of the compression nut 1037 ensures that when the material is removed by the user, the second detection rod 1034 can be accurately reset to the second groove under the action of gravity. Even if the second detection rod 1034 rotates and moves after being hit by the material, the second detection rod 1034 can return to its original position through the elastic force of the compression nut 1037 to prepare for the next detection.

[0088] The design of the compression nut in the present invention helps to increase the resetting speed. Since the compression nut provides a certain elastic force and resistance, the detection rod can be quickly reset after the material is manually removed, reducing the system downtime caused by the resetting delay.

[0089] In one embodiment of the present invention, the second detection component 103 is connected to the elevator, and the second detection component 103 is used to send an abnormal signal to the elevator, and the elevator is used to suspend operation according to the abnormal signal.

[0090] In the embodiment of the present invention, Figure 2 As shown, the second detection component 103 can also be connected to the elevator for communication. The communication connection method can be a wired connection or a wireless connection, which is specifically set according to user needs. The second detection component 103 can send an abnormal signal to the elevator, and the elevator can suspend operation based on the abnormal signal to prevent materials that do not meet the size from entering.

[0091] In one embodiment of the present invention, the elevator includes a programmable logic controller, and the programmable logic controller is used to prohibit materials from entering the elevator according to an abnormal signal.

[0092] PLC (Programmable Logic Controller) is a digital computer designed specifically for industrial environments and is used for automated control processes. PLCs are widely used in manufacturing, process control, mechanical control, automated production lines and other fields. They can perform tasks such as logical operations, sequential control, timing, counting and arithmetic operations, and can communicate with external devices through various input / output (I / O) modules.

[0093] In an embodiment of the present invention, in the elevator system, a programmable logic controller (PLC) is a core component, which is responsible for controlling the operation of the elevator and monitoring various states of the system. After receiving the abnormal signal sent by the second detection component 103, the programmable logic controller can prohibit materials from entering the elevator according to the abnormal signal. Specifically, it can be achieved by closing the feed port of the elevator, stopping the conveyor belt, or activating the safety door. Furthermore, it can also trigger an alarm to notify the operator or maintenance personnel to check the material or adjust the system settings, which helps to discover and solve problems in a timely manner and prevent production interruptions or equipment damage.

[0094] The present invention discloses a door access control device for an elevator. The present invention transmits photoelectric signals through a signal transmitter of a first detection component and a signal receiver of a second detection component. The device can effectively detect the size of materials passing through a bracket. If the size of the material is too large and blocks the transmission of the photoelectric signal, the signal receiver will not be able to receive the signal, thereby outputting an abnormal signal to indicate that the material size does not meet the requirements, thereby avoiding collision accidents caused by improper material size and posture. The design of the bracket makes the height of the first support and the second support match the height of the elevator entrance, and the length of the connecting rod matches the width of the elevator entrance. This precise matching ensures that the detection component can be accurately installed at the entrance of the elevator, thereby improving the accuracy and reliability of the detection. In the present invention, once it is detected that the material size does not meet the requirements, the system will immediately output an abnormal signal without manual intervention, which not only improves work efficiency but also reduces the possibility of human error.

[0095] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0096] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0097] Those skilled in the art should understand that the embodiments of the present invention can be provided as a device. Therefore, the embodiments of the present invention can adopt a complete hardware embodiment.

[0098] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems) and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0099] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0100] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0101] The access control device for an elevator provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A door control device for a hoist, characterized in that: include: A bracket, the bracket comprising a first pillar and a second pillar placed vertically, and a connecting rod respectively connected to the first pillar and the second pillar; the bracket is arranged at the entrance of the elevator; the height of the first pillar and the second pillar matches the height of the entrance of the elevator, and the length of the connecting rod matches the width of the entrance of the elevator; A first detection component, the first detection component is arranged at one end of the connecting rod close to the first pillar, the first detection component comprises a signal transmitter, and the signal transmitter is used to transmit a photoelectric signal; The second detection component is arranged at one end of the connecting rod close to the second pillar, and the second detection component includes a signal receiver, and the signal receiver is used to detect whether the photoelectric signal emitted by the signal transmitter is received, and output an abnormal signal when the photoelectric signal is not received, and the abnormal signal is used to indicate that the size of the material passing through the bracket does not meet the requirements.

2. The device according to claim 1, characterized in that The first detection component also includes: A first mounting plate, a first detection rod reset block, a first detection rod, and a first photoelectric baffle; The signal transmitter is arranged on the first mounting plate, a first through hole is arranged on the first mounting plate, and the signal transmitter is used to transmit the photoelectric signal to the signal receiver through the first through hole; The first detection rod reset block is arranged on the first mounting plate, and the first detection rod reset block is provided with a first groove, and the diameter of the first groove matches the diameter of the first detection rod; The first detection rod is fixed in the groove of the first detection rod reset block, and the first detection rod is used to detect that it moves in a direction away from the groove when it is hit by the material, and drive the first photoelectric baffle to move, so that the first photoelectric baffle blocks the first through hole; The first photoelectric baffle is disposed on the first detection rod. The first photoelectric baffle is provided with a second through hole. The second through hole is concentrically disposed with the first through hole.

3. The device according to claim 2, characterized in that The first detection rod is fixed in the first groove of the first detection rod reset block by a first reset screw. The first detection rod is used to detect that it is hit by the material and rotates in a direction away from the first groove with the first reset screw as the axis.

4. The device according to claim 3, characterized in that A compression nut is installed on the first reset screw, and the compression nut is installed between the first mounting plate and the nut of the first reset screw; The first detection rod is used for rotating and moving in a direction approaching the groove with the first reset screw as the axis under the action of the compression nut when it is detected that the material is removed, until it is reset into the first groove.

5. The device according to claim 1, characterized in that The signal receiver and the signal transmitter are symmetrically arranged, and the height of the signal receiver from the ground is the same as the height of the signal transmitter from the ground; The signal receiver is used to generate the abnormal signal when the height of the material is higher than the height of the signal receiver from the ground.

6. The device according to claim 5, characterized in that The second detection component also includes a second mounting plate; the signal receiver is arranged on the second mounting plate, and a third through hole is arranged on the second mounting plate. The signal receiver is used to receive the photoelectric signal through the third through hole when the height of the material is lower than the height of the signal receiver from the ground.

7. The device according to claim 6, characterized in that The second detection assembly also includes a second detection rod reset block, a second detection rod, and a second photoelectric baffle; The second detection rod reset block is arranged on the second mounting plate, and the second detection rod reset block is provided with a second groove, and the diameter of the second groove matches the diameter of the second detection rod; The second detection rod is fixed in the groove of the second detection rod reset block, and the second detection rod is used to detect that it moves in a direction away from the groove when it is hit by the material, and drive the second photoelectric baffle to move, so that the second photoelectric baffle blocks the third through hole; The second photoelectric baffle is disposed on the second detection rod, and the second photoelectric baffle is provided with a fourth through hole, and the fourth through hole is concentrically disposed with the third through hole.

8. The device according to claim 7, characterized in that The second detection rod is fixed in the second groove of the second detection rod reset block by a second reset screw. The second detection rod is used to rotate and move in a direction away from the second groove with the second reset screw as the axis when the second detection rod is hit by the material.

9. The device according to claim 1, characterized in that The second detection component is connected to the elevator, and the second detection component is used to send the abnormal signal to the elevator, and the elevator is used to suspend operation according to the abnormal signal.

10. The device according to claim 9, characterized in that The elevator comprises a programmable logic controller, and the programmable logic controller is used for prohibiting the material from entering the elevator according to the abnormal signal.

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