A safety type double push button switch device
By using a light curtain switch assembly and a dual-button switch device, infrared light sensors are used to detect the positions of the operator and the workpiece, ensuring that the production equipment is only started when both hands are operating, thus solving the problem of misoperation of the production equipment and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HANGSHI ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-21
AI Technical Summary
Existing production equipment is prone to accidental start-up during reciprocating motion, posing a significant safety hazard that could lead to equipment damage or operator injury.
The system employs a light curtain switch assembly and a dual-button switch device. The light curtain switch assembly uses an infrared light sensor to detect whether the operator or the workpiece is blocking the light path, thus interrupting the start control circuit. The dual-button switch requires two hands to operate in order to start the equipment.
This effectively prevents accidental start-up of production equipment, improves operational safety, and prevents production accidents.
Smart Images
Figure CN224536916U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of switchgear technology, and more particularly to a safety-type double-button switch device. Background Technology
[0002] Some production equipment requiring manual operation and featuring reciprocating motion mechanisms (such as stamping presses and injection molding machines) pose significant dangers and safety hazards to operators working nearby during reciprocating operations. For example, the equipment might be accidentally started while the operator's limbs are still within the danger zone. Or, there might be workpieces that haven't been moved from the danger zone. Such errors can range from minor equipment damage to serious injuries such as pinching or injuring the operator's limbs.
[0003] Therefore, the aforementioned technical defects urgently need to be addressed. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a safe double-button switch device, which aims to prevent production equipment from being accidentally triggered and causing production accidents.
[0005] The technical solution adopted by this application to solve the technical problem is as follows: A safety-type double-button switch device, comprising:
[0006] The mounting base is used to fix the material in and out of the production equipment laterally. The mounting base is provided with a first mounting column and a second mounting column at both ends.
[0007] The light curtain switch assembly includes several infrared light emitters and several infrared grating sensors. The infrared light emitters are located on one side of the first mounting column, and the infrared grating sensors are located on one side of the second mounting column. The infrared light emitters and infrared grating sensors are arranged in a one-to-one correspondence. The infrared light emitters are used to emit infrared light toward the infrared grating sensors. When the infrared light emitters and infrared grating sensors are separated, the light curtain switch assembly shuts off the power supply.
[0008] And at least two push-button switches, with the two push-button switches respectively located at both ends of the mounting base;
[0009] The light curtain switch assembly and two push-button switches are connected in series and used to start the production equipment.
[0010] In one possible implementation, a plurality of infrared light emitters are uniformly arranged along a first direction on one side of the first mounting column; a plurality of infrared grating sensors are uniformly arranged along a first direction on one side of the second mounting column, the first direction being the height direction of the first and second mounting columns.
[0011] In one possible implementation, a linear slide rail is provided on the mounting base, and sliders are provided at the positions of the first and second mounting columns corresponding to the linear slide rail. The first and second mounting columns are slidably connected to the slide rail via the sliders, and the linear slide rail is used to adjust the distance between the first and second mounting columns.
[0012] In one possible implementation, the linear guide rail extends along the length of the mounting base.
[0013] In one possible implementation, at least one of the first and second mounting columns is detachably connected to a side baffle, which extends toward the material feeding and discharging operation area of the production equipment.
[0014] In one possible implementation, the side panel is a transparent panel.
[0015] In one possible implementation, a handle platform is provided on the mounting base, and a push-button switch is located on the handle platform.
[0016] In one possible implementation, the bottom of the push-button switch is provided with a magnetic attachment, and the armrest platform is a magnetically attachable platform, with the push-button switch detachably connected to the armrest platform via the magnetic attachment.
[0017] In one possible implementation, the mounting base has several mounting holes for mounting and fixing the mounting base.
[0018] In one possible implementation, a power supply box is also provided on the mounting base. The power supply box is used to connect to the start-up circuit of the production equipment. The light curtain switch assembly and the push-button switch are both electrically connected to the power supply box.
[0019] Compared with existing technologies, this application provides a safe double-button switch device. Before use, the mounting base is horizontally fixed to the front end of the material feeding / discharging operation area of the production equipment, positioning the light curtain switch assembly between the operator and the equipment operation area. When the workpiece has not been completely conveyed or the operator's arm is still in the operation area, blocking the infrared light transmission of the light curtain switch assembly, the light curtain switch assembly blocks the start-up control circuit of the production equipment. Simultaneously, by connecting the double-button switch in parallel, the operator is required to operate the switch with both hands each time they control the equipment to start, thus preventing accidental triggering of the production equipment and potential production accidents. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of a safety-type dual-button switch device provided in this embodiment;
[0022] Figure 2 This is a partial structural diagram of a safety-type double-button switch device provided in this embodiment.
[0023] In the diagram: 1. Mounting base; 11. First mounting column; 12. Second mounting column; 13. Linear slide rail; 131. Slider; 14. Side baffle; 15. Hand support platform; 16. Mounting fixing hole; 17. Power supply box; 2. Light curtain switch assembly; 21. Infrared light emitter; 22. Infrared grating sensor; 3. Push button switch. Detailed Implementation
[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.
[0028] This utility model provides, for example Figure 1 , Figure 2 As shown, a safety-type double-button switch 3 device is used to start production equipment (such as a stamping machine or injection molding machine) with a reciprocating motion mechanism. Before use, it is horizontally fixed at the front end of the material feeding / discharging operation area of the production equipment, so that the light curtain switch assembly 2 is located between the operator and the equipment operation area. The main structure includes: a mounting base 1, a light curtain switch assembly 2, and at least two push-button switches 3. The mounting base 1 is used to fix horizontally in the material feeding and discharging operation area of the production equipment. A first mounting column 11 and a second mounting column 12 are respectively set at both ends of the mounting base 1. The light curtain switch assembly 2 includes several infrared light emitters 21 and several infrared grating sensors 22. Several infrared light emitters 21 are set on one side of the first mounting column 11, and several infrared grating sensors 22 are set on one side of the second mounting column 12. The infrared light emitters 21 and infrared grating sensors 22 are set in a one-to-one correspondence. The infrared light emitters 21 are used to emit infrared light towards the infrared grating sensors 22. When the infrared light emitters 21 and infrared grating sensors 22 are separated, the light curtain switch assembly 2 shuts off the power supply. The two push-button switches 3 are respectively set at both ends of the mounting base 1. The light curtain switch assembly 2 and the two push-button switches 3 are connected in series and used to start the operation of the production equipment.
[0029] It should be noted that some production equipment requiring manual operation and featuring reciprocating motion mechanisms (such as stamping presses and injection molding machines) pose significant dangers and safety hazards to operators working nearby during reciprocating operations. For example, the equipment may be accidentally started while the operator's limbs are still within the danger zone. Or, there may be workpieces that have not been moved from the danger zone. Such errors can range from minor damage to the equipment to serious injuries to the operator's limbs.
[0030] Before use, the mounting base 1 is horizontally fixed to the front end of the material feeding / discharging operation area of the production equipment, positioning the light curtain switch assembly 2 between the operator and the equipment operation area. When the workpiece has not been completely conveyed or the operator's arm is still in the operation area, blocking the infrared light transmission of the light curtain switch assembly 2, the light curtain switch assembly 2 blocks the start-up control circuit of the production equipment. Simultaneously, a parallel double-button switch 3 forces the operator to operate the switch with both hands each time they control the equipment to start, preventing accidental triggering of the production equipment and potential production accidents.
[0031] Specifically, before use, the mounting base 1 is horizontally fixed to the front end of the material handling area of the production equipment, so that the light curtain switch assembly 2 is located between the operator and the equipment operating area. When a workpiece or operator's arm is in the operating area of the production equipment, the workpiece or operator's arm will be positioned between the infrared light emitter 21 and the infrared grating sensor 22, thus isolating the infrared light emitter 21 and the infrared grating sensor 22, and the light curtain switch assembly 2 will block the power supply. At this time, even if both push-button switches 3 are pressed simultaneously, the production equipment cannot be started, thereby avoiding production accidents.
[0032] Furthermore, such as Figure 1 , Figure 2 As shown, a plurality of infrared light emitters 21 are evenly arranged along a first direction on one side of the first mounting column 11; a plurality of infrared grating sensors 22 are evenly arranged along a first direction on one side of the second mounting column 12, the first direction being the height direction of the first mounting column 11 and the second mounting column 12.
[0033] It is understood that several infrared light emitters 21 are evenly arranged, as are several infrared grating sensors 22. Furthermore, the infrared light emitters 21 and infrared grating sensors 22 are arranged in a one-to-one correspondence. This creates a light curtain formed by infrared light between the operator and the production equipment operating area. This allows the infrared light curtain to detect the operator's arm or the workpiece at different heights, achieving a safety separation effect. The infrared light emitted by the infrared light emitters 21 is relatively soft, and the direction of the infrared light avoids the operator's eyes. Therefore, the operator will not be affected by the light from the infrared light curtain switch assembly 2 while working at the workstation.
[0034] Furthermore, such as Figure 1As shown, a linear slide rail 13 is provided on the mounting base 1. Slider blocks 131 are provided at positions corresponding to the linear slide rail 13 for both the first mounting column 11 and the second mounting column 12. The first mounting column 11 and the second mounting column 12 are slidably connected to the slide rail via the sliders 131. The linear slide rail 13 is used to adjust the distance between the first mounting column 11 and the second mounting column 12. In this embodiment, during installation, the operator can adjust the distance between the first mounting column 11 and the second mounting column 12 according to the width of the operating area of the production equipment. To improve the convenience of the operator during work, the distance between the first mounting column 11 and the second mounting column 12 needs to be as large as possible, so that the operator can have a larger operating space.
[0035] Furthermore, such as Figure 1 As shown, the linear guide rail 13 extends along the length of the mounting base 1. Since the mounting base 1 is laterally positioned between the operator and the production equipment operating area, the linear guide rail 13 also extends along this direction.
[0036] Furthermore, such as Figure 1 , Figure 2 As shown, at least one of the first mounting column 11 and the second mounting column 12 is detachably connected to a side baffle 14, which extends toward the material feeding and discharging operation area of the production equipment.
[0037] Furthermore, the side baffle 14 is a transparent baffle. It is understood that the side baffle 14 extends towards the operating area of the production equipment. And with two side baffles 14 located on either side of the operating area, they can enclose the operating area of the production equipment, preventing external foreign objects from entering the operating area and affecting the normal operation of the production equipment.
[0038] Furthermore, such as Figure 1 As shown, a support platform 15 is provided on the mounting base 1, and a push-button switch 3 is located on the support platform 15. The support platform 15 on the mounting base 1 serves to support and lift the workpiece. The operator can support the workpiece using the support platform 15 during the transfer of the workpiece.
[0039] Furthermore, the bottom of the push-button switch 3 is equipped with a magnetic attachment, and the armrest platform 15 is a magnetically attached platform. The push-button switch 3 is detachably connected to the armrest platform 15 via the magnetic attachment. The armrest platform 15 and the push-button switch 3 can be magnetically attracted to each other. Therefore, the push-button switch 3 is detachably connected to the armrest platform 15 via the magnetic attachment, allowing the operator to change the position of the push-button switch 3 according to the convenience of operation.
[0040] Furthermore, the mounting base 1 is provided with a plurality of mounting holes 16 for mounting and fixing the mounting base 1. In some embodiments, the mounting base 1 is screwed to one side of the production equipment through the mounting holes 16.
[0041] Furthermore, such as Figure 2 As shown, a power supply box 17 is also installed on the mounting base 1. The power supply box 17 is used to connect the start-up circuit of the production equipment. The light curtain switch assembly 2 and the push-button switch 3 are both electrically connected to the power supply box 17. When both push-button switches 3 are pressed simultaneously, and the light curtain switch assembly 2 is not obstructed, the start-up circuit in the power supply box 17 is activated, thereby controlling the production equipment to enter the next operation process. If either of the two modules of the light curtain switch assembly 2 or any one of the push-button switches 3 is not powered, the equipment cannot enter the next operation process. This is to prevent production accidents.
[0042] In summary, this application provides a safety-type double-button switch 3 device. Before use, the mounting base 1 is horizontally fixed to the front end of the material feeding / discharging operation area of the production equipment, so that the light curtain switch assembly 2 is located between the operator and the equipment operation area. When the workpiece has not been completely conveyed or the operator's arm is still in the operation area and blocking the infrared light transmission of the light curtain switch assembly 2, the light curtain switch assembly 2 blocks the start control circuit of the production equipment. At the same time, by connecting the double-button switch 3 in parallel, the operator is required to operate the switch with both hands every time the equipment is started, thus avoiding production accidents caused by accidental triggering of the production equipment.
[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A safety-type double-button switch device, characterized in that, include: The mounting base is used to fix the material feeding and discharging operation area of the production equipment laterally, and the two ends of the mounting base are respectively provided with a first mounting column and a second mounting column; A light curtain switch assembly includes several infrared light emitters and several infrared grating sensors. The infrared light emitters are disposed on one side of the first mounting column, and the infrared grating sensors are disposed on one side of the second mounting column. The infrared light emitters and the infrared grating sensors are arranged in a one-to-one correspondence. The infrared light emitters are used to emit infrared light toward the infrared grating sensors. When the infrared light emitters and the infrared grating sensors are separated, the light curtain switch assembly shuts off the power supply. And at least two push-button switches, the two push-button switches being respectively disposed at both ends of the mounting base; The light curtain switch assembly and the two push-button switches are connected in series and used to start the production equipment.
2. The safety-type double-button switch device according to claim 1, characterized in that, A plurality of infrared light emitting elements are uniformly arranged along a first direction on one side of the first mounting column; a plurality of infrared grating sensors are uniformly arranged along a first direction on one side of the second mounting column, wherein the first direction is the height direction of the first mounting column and the second mounting column.
3. A safety-type double-button switch device according to claim 1, characterized in that, The mounting base is provided with a linear slide rail. The first mounting column and the second mounting column are each provided with a slider at the position corresponding to the linear slide rail. The first mounting column and the second mounting column are slidably connected to the slide rail through the slider. The linear slide rail is used to adjust the distance between the first mounting column and the second mounting column.
4. A safety-type double-button switch device according to claim 3, characterized in that, The linear slide rail extends along the length of the mounting base.
5. A safety-type double-button switch device according to claim 1, characterized in that, At least one of the first mounting column and the second mounting column is detachably connected to a side baffle, which extends toward the material feeding and discharging operation area of the production equipment.
6. A safety-type double-button switch device according to claim 5, characterized in that, The side panel is a transparent panel.
7. A safety-type double-button switch device according to claim 1, characterized in that, The mounting base is provided with a handle platform, and the push-button switch is located on the handle platform.
8. A safety-type double-button switch device according to claim 7, characterized in that, The bottom of the push-button switch is provided with a magnetic attachment, and the hand support platform is a magnetically attached platform. The push-button switch is detachably connected to the hand support platform through the magnetic attachment.
9. A safety-type double-button switch device according to claim 1, characterized in that, The mounting base has a plurality of mounting holes for mounting and fixing the mounting base.
10. A safety-type double-button switch device according to claim 1, characterized in that, The mounting base is also equipped with a power supply box, which is used to connect to the start-up circuit of the production equipment. The light curtain switch assembly and the push-button switch are both electrically connected to the power supply box.