Magnetic control door switch sensor

Abstract

The utility model provides a magnetic control door switch sensor which comprises a shell, a proximity switch arranged in the shell, a telescopic rod which is connected to the shell in a sliding mode and can abut against and trigger the proximity switch, and a pressing plate which is connected to the end portion of the telescopic rod in a threaded mode and can move in the axis direction of the telescopic rod, and the pressing plate is located on the outer side of the shell. The telescopic rod is further provided with a connecting assembly capable of enabling the telescopic rod to elastically move in the axis direction of the telescopic rod. When the cabin door moves, the cabin door can abut against the pressing plate, the pressing plate drives the telescopic rod to move, the telescopic rod triggers the proximity switch in the shell so as to trigger signals, the installation threads are connected to the end of the telescopic rod, the pressing plate can move in the axis direction of the telescopic rod, and then the triggering range of the telescopic rod can be adjusted. Therefore, door closing triggering signals of the cabin doors of different sizes are facilitated, the universality is better, and the door closing device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic control door sensor equipment, in particular to a magnetic control door switch sensor. Background Art

[0002] The magnetically controlled door is controlled by a magnetically controlled switch. A magnetic switch is a circuit switching device that uses a magnetic field signal to control it. It is also called a magnetically controlled switch. Commonly used magnetic switches include single-contact and double-contact. The magnetic switch means that it is sensed by a magnet. The "magnetic" here refers to the magnet. There are several types of magnets. Commonly used magnets on the market include rubber magnets, permanent ferrites, sintered neodymium iron boron, etc. The switch is a reed switch. Reed switch is the abbreviation of dry reed switch. It is a passive electronic switching element with contacts. It has the advantages of simple structure, small size and easy control.

[0003] At present, magnetically controlled doors are usually triggered by contact when used on ship cabins. The signal can be triggered by the contact sensor when the cabin door is opened or closed. However, the trigger rod in the existing magnetically controlled door sensor is difficult to adjust and difficult to adapt to cabin doors of different sizes, resulting in poor applicability. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a magnetically controlled door switch sensor to solve the problem in the prior art that the trigger of the magnetically controlled door sensor is difficult to adjust and difficult to adapt to doors of multiple sizes.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a magnetically controlled door switch sensor, comprising a shell, a proximity switch arranged in the shell, a telescopic rod slidably connected to the shell and capable of contacting and triggering the proximity switch, and a press plate threadedly connected to the end of the telescopic rod and capable of displacement along the axis of the telescopic rod. The press plate is located outside the shell, and the telescopic rod is also provided with a connecting component that can elastically displace the telescopic rod along its axis.

[0006] By adopting the above technical solution, the hatch can resist the push plate when moving, and the push plate drives the telescopic rod to move, and the telescopic rod triggers the proximity switch in the shell, thereby triggering the signal, and the mounting thread is connected to the end of the telescopic rod, so that the push plate can be displaced along the axis of the telescopic rod, and then the trigger range of the telescopic rod can be adjusted, so as to adapt to hatches of different sizes, facilitate the door closing trigger signal of hatches of different sizes, and make it more versatile and easier to use.

[0007] In one embodiment of the present invention, the shell includes a base and a cover installed on the upper side of the base. The base has a positioning groove for positioning and installing the proximity switch. The side wall of the base also has a mounting hole for installing the telescopic rod. The proximity switch trigger part is located at the axis of the mounting hole.

[0008] By adopting the above technical solution, the proximity opening can be installed in the positioning groove on the base and arranged corresponding to the mounting hole, ensuring that when the telescopic rod is installed, the telescopic rod can trigger the proximity switch without the need for secondary positioning, making installation more convenient.

[0009] In one embodiment of the present invention, the telescopic rod is inserted into the mounting hole, the end of the telescopic rod has a limit head with a diameter larger than the diameter of the mounting hole, the other end of the telescopic rod has a threaded portion that cooperates with the thread of the press plate, and the side wall of the telescopic rod has a groove, and an O-ring is provided in the groove to enable the telescopic rod to be sealed with the inner wall of the mounting hole.

[0010] By adopting the above technical solution, the groove on the telescopic rod can be matched with the O-ring to ensure a sealed connection between the telescopic rod and the mounting hole, so that the liquid outside the shell will not enter the inside of the shell through the mounting hole. The limit head can also abut against the inner wall of the base to limit the telescopic rod and can be used in conjunction with the connecting assembly.

[0011] In one embodiment of the present invention, the connecting assembly is located outside the shell, and the connecting assembly includes a spring sleeved on the outside of the telescopic rod and a limiting ring fixed on the telescopic rod and in contact with the spring. One end of the spring is in contact with the outer wall of the shell, and the other end is in contact with the limiting ring.

[0012] By adopting the above technical solution, the spring respectively contacts the outer wall of the base and the limiting ring, so that the spring can be elastically compressed when the telescopic rod is displaced, so that the telescopic rod can be reset under the elastic action of the spring.

[0013] In one embodiment of the present invention, the cover and the base are connected by fasteners, and a sealing gasket is provided between the base and the cover to enable a sealing connection between the two. The base has a sealing groove corresponding to the sealing gasket.

[0014] By adopting the above technical solution, the cover and the base can be sealed together when the sealing gasket cooperates with the sealing groove, thereby preventing liquid on the outer wall from entering the interior of the shell.

[0015] In one embodiment of the present invention, a connection hole is further provided on the other side of the housing opposite to the mounting hole, an explosion-proof cable gland is installed at the connection hole, and a connection line for connecting the proximity switch is provided in the explosion-proof cable gland.

[0016] By adopting the above technical solution, the connecting wires can be installed correspondingly through the explosion-proof cable gland, and the use of the explosion-proof cable gland can further improve the waterproofness of the shell.

[0017] In one embodiment of the present invention, a pressure plate for installing a proximity switch is also provided in the base. The pressure plate is configured as a U-shaped structure. The pressure plate contacts the upper side of the proximity switch. There are connecting plates on both sides of the pressure plate. The base has connecting columns corresponding to the connecting plates. The connecting plates are connected to the connecting columns via fasteners.

[0018] By adopting the above technical solution and using a pressure plate, the installation of the proximity switch is more convenient.

[0019] As described above, the magnetically controlled door switch sensor of the present invention has the following beneficial effects: by adopting the above technical solution, the cabin door can resist the push plate when moving, and the push plate drives the telescopic rod to move, and the telescopic rod triggers the proximity switch in the shell, thereby triggering the signal, and the mounting thread is connected to the end of the telescopic rod so that the push plate can move along the axis direction of the telescopic rod, and then the trigger range of the telescopic rod can be adjusted, so as to adapt to cabin doors of different sizes, facilitate the door closing trigger signal of cabin doors of different sizes, and make it more versatile and easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It shows a schematic diagram of the overall structure disclosed in the embodiment of the present utility model.

[0021] Figure 2 It is a schematic exploded view of the whole disclosed in the embodiment of the present invention.

[0022] Component number description

[0023] 1. Housing; 2. Proximity switch; 3. Telescopic rod; 4. Press plate; 5. Connecting assembly;

[0024] 10. Base; 11. Surface cover; 12. Positioning groove; 13. Mounting hole; 14. Press plate; 15. Connecting plate; 16. Connecting column; 17. Sealing gasket; 18. Sealing groove;

[0025] 20. Limiting head; 21. Threaded portion; 22. Groove; 23. O-ring;

[0026] 30. Spring; 31. Limiting ring;

[0027] 40. Connecting hole; 41. Explosion-proof cable gland; 42. Connecting wire. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0029] See also Figures 1 to 2. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0030] like Figure 1 、 Figure 2 As shown, the utility model provides a magnetically controlled door switch sensor, comprising a housing 1, a proximity switch 2 arranged in the housing 1, a telescopic rod 3 slidably connected to the housing 1 and capable of contacting and triggering the proximity switch 2, and a press plate 4 threadedly connected to the end of the telescopic rod 3 and capable of displacing along the axis of the telescopic rod 3. The press plate 4 is located outside the housing 1, and the telescopic rod 3 is driven to move by external equipment contacting the press plate 4, so that the telescopic rod 3 contacts and triggers the proximity switch 2.

[0031] The housing 1 includes a base 10 and a cover 11 installed on the upper side of the base 10. The base 10 has a positioning groove 12 for positioning and installing the proximity switch 2. The positioning groove 12 is set at the center of the base 10. The side wall of the base 10 also has a mounting hole 13 for installing the telescopic rod 3. The trigger part of the proximity switch 2 is located at the axis of the mounting hole 13.

[0032] A pressure plate 14 for installing the proximity switch 2 is also provided in the base 10. The pressure plate 14 is set to a U-shaped structure. The pressure plate 14 is in contact with the upper side of the proximity switch 2. There are connecting plates 15 on both sides of the pressure plate 14. There are connecting columns 16 corresponding to the connecting plates 15 on the base 10. The connecting plates 15 are connected to the connecting columns 16 through fasteners.

[0033] The base 10 and the cover 11 are integrally formed of high-strength aviation aluminum alloy. The cover 11 and the base 10 are connected by fasteners. A sealing gasket 17 is also provided between the base 10 and the cover 11 to enable the two to be sealed. The base 10 has a sealing groove 18 corresponding to the sealing gasket 17.

[0034] The telescopic rod 3 is inserted into the mounting hole 13. The end of the telescopic rod 3 has a limit head 20 with a diameter larger than the aperture of the mounting hole 13. The other end of the telescopic rod 3 has a threaded portion 21 that is threadedly matched with the pressing plate 4. The side wall of the telescopic rod 3 has a groove 22. An O-ring 23 is provided in the groove 22 to enable the telescopic rod 3 to be sealed to the inner wall of the mounting hole 13. When the telescopic rod 3 is inserted into the mounting hole 13, the groove 22 on the telescopic rod 3 is located at the mounting hole 13.

[0035] The telescopic rod 3 is also provided with a connecting component 5 that can elastically displace the telescopic rod 3 along its axial direction. The connecting component 5 is located outside the shell 1. The connecting component 5 includes a spring 30 that is sleeved on the outside of the telescopic rod 3 and a limiting ring 31 that is fixed on the telescopic rod 3 and is in contact with the spring 30. One end of the spring 30 is in contact with the outer wall of the shell 1, and the other end is in contact with the limiting ring 31.

[0036] A connecting hole 40 is further provided on the housing 1 on the other side of the mounting hole 13 . An explosion-proof cable gland 41 is installed at the connecting hole 40 . A connecting wire 42 for connecting the proximity switch 2 is provided in the explosion-proof cable gland 41 .

[0037] To sum up, the hatch of the utility model can resist the push plate 4 when moving, and the push plate 4 drives the telescopic rod 3 to move, and the telescopic rod 3 triggers the proximity switch 2 in the shell 1, thereby triggering the signal, and the mounting thread is connected to the end of the telescopic rod 3, so that the push plate 4 can be displaced along the axial direction of the telescopic rod 3, and then the trigger range of the telescopic rod 3 can be adjusted, so as to adapt to hatches of different sizes, facilitate the closing trigger signal of hatches of different sizes, and make it more versatile and easier to use.

[0038] Therefore, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A magnetically controlled door switch sensor, characterized in that: The invention comprises a shell, a proximity switch arranged in the shell, a telescopic rod slidably connected to the shell and capable of contacting and triggering the proximity switch, and a press plate threadedly connected to the end of the telescopic rod and capable of displacement along the axis of the telescopic rod. The press plate is located outside the shell, and the telescopic rod is also provided with a connecting component that can elastically displace the telescopic rod along its axis.

2. The magnetic door switch sensor according to claim 1, characterized in that: The shell includes a base and a cover installed on the upper side of the base. The base has a positioning groove for positioning and installing the proximity switch. The side wall of the base also has a mounting hole for installing the telescopic rod. The proximity switch trigger part is located at the axis of the mounting hole.

3. The magnetic door switch sensor according to claim 2, characterized in that: The telescopic rod is inserted into the mounting hole, and the end of the telescopic rod has a limit head with a diameter larger than the diameter of the mounting hole. The other end of the telescopic rod has a threaded portion that cooperates with the thread of the press plate. The side wall of the telescopic rod has a groove, and an O-ring is provided in the groove to enable the telescopic rod to be sealed and connected to the inner wall of the mounting hole.

4. The magnetic door switch sensor according to claim 1, characterized in that: The connecting assembly is located outside the shell, and includes a spring sleeved outside the telescopic rod and a limiting ring fixed on the telescopic rod and connected to the spring in abutment with one end of the spring, and the other end is connected to the limiting ring in abutment with the outer wall of the shell.

5. The magnetic door switch sensor according to claim 2, characterized in that: The surface cover is connected to the base via fasteners. A sealing gasket is provided between the base and the surface cover to seal the two. The base has a sealing groove corresponding to the sealing gasket.

6. The magnetically controlled door switch sensor according to claim 2, characterized in that: A connecting hole is further provided on the other side of the shell relative to the mounting hole. An explosion-proof cable gland is installed at the connecting hole. A connecting wire for connecting a proximity switch is provided in the explosion-proof cable gland.

7. The magnetically controlled door switch sensor according to claim 2, characterized in that: A pressure plate for installing a proximity switch is also provided in the base. The pressure plate is set to a U-shaped structure. The pressure plate is connected to the upper side of the proximity switch. There are connecting plates on both sides of the pressure plate. There are connecting columns corresponding to the connecting plates on the base. The connecting plates are connected to the connecting columns through fasteners.

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