Screw propeller for opening and closing door of electric cabinet

Abstract

The utility model provides a spiral propeller for opening and closing a door of an electric cabinet, which relates to the field of door opening and closing devices of electric cabinets and comprises a support, a speed reduction assembly is arranged at the bottom of the support, transmission assemblies are arranged at the upper end and the lower end of an inner cavity of the support respectively, and a transmission shaft is arranged between the two transmission assemblies. Movable assemblies are arranged at the upper end and the lower end of one side of the support, and a coding motor is arranged on one side of the speed reduction assembly; through the arrangement of the support, the speed reduction assembly, the transmission assembly, the transmission shaft, the movable assembly, the coding motor and the emergency screwdriver, the effect of opening and closing the cabinet door is achieved, through the cooperation of the speed reduction assembly, the transmission assembly, the transmission shaft, the movable assembly and the coding motor, the door closing starting distance can be increased, and the safety is improved. Therefore, the outward rebound capability of the cabinet door is reduced, the door closing is safer and more reliable, emergency opening and closing can be performed through the emergency screwdriver when a fault occurs, and convenience is brought to the use of the electric cabinet.

Description

Technical Field

[0001] The utility model belongs to the field of electric cabinet switch door devices, in particular to a screw propeller for a electric cabinet switch door. Background Art

[0002] An electric cabinet is a device used to protect internal electronic equipment from external electromagnetic interference. It is usually used to store sensitive electronic equipment, such as communication equipment, computer servers, medical equipment, etc., to prevent external electromagnetic radiation from interfering with or damaging them. It is also called an electromagnetic shielding cabinet. The door opening device of the electromagnetic shielding cabinet is a mechanical device used to open and close the cabinet door, which can facilitate the control of the equipment for maintenance and repair operations.

[0003] The existing cabinet doors use a sliding rail door opening and closing method to achieve automatic control of door closing, but this method has a limited opening and closing distance. The door of the electromagnetic shielding cabinet is composed of a shielding blade and a spring shielding insert. When closing the door, the blade is pressed by the spring shielding insert, and the door panel rebounds outward before the motor is started. When closing the door, if the door panel is not pushed tightly and compacted and released when the motor starts, the pulley is easy to derail, causing the door to be not closed tightly or an accident, which brings inconvenience to the use of the motor cabinet.

[0004] In summary, the utility model provides a screw propeller for an electric cabinet door switch to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An electric cabinet door opening and closing screw propeller comprises a bracket, a reduction assembly is arranged at the bottom of the bracket, transmission assemblies are arranged at the upper and lower ends of the inner cavity of the bracket, a transmission shaft is arranged between the two transmission assemblies, movable assemblies are arranged at the upper and lower ends of one side of the bracket, an encoding motor is arranged at one side of the reduction assembly, an emergency screwdriver is arranged at one side of the encoding motor, the encoding motor and the reduction assembly are used to provide power to the transmission assembly, the transmission assembly is used to provide power to the movable assembly, and the emergency screwdriver is used for emergency use.

[0007] Furthermore, in the utility model, the transmission assembly includes a mounting box, a first bevel gear and a second bevel gear, and the mounting box is fixedly connected to the inner wall of the bracket.

[0008] Furthermore, in the utility model, the first bevel gear and the second bevel gear are meshed, and both ends of the transmission shaft respectively penetrate into the inner cavities of the two installation boxes and are fixedly connected to the first bevel gear.

[0009] Furthermore, in the utility model, the movable assembly includes a mounting box, a nut and a screw rod, and the nut is opened in the inner cavity of the mounting box.

[0010] Furthermore, in the utility model, one end of the screw rod extends to the inner cavity of the nut and is movably connected to the inner cavity of the nut, and the other end of the screw rod penetrates into the inner cavity of the mounting box and is fixedly connected to the second bevel gear.

[0011] Furthermore, in the utility model, the reduction assembly includes a housing, a worm, a worm wheel, a connecting rod and a support rod, and the worm, worm wheel, connecting rod and support rod are all installed in the inner cavity of the housing, and the encoding motor is fixedly connected to the housing.

[0012] Furthermore, in the utility model, the output shaft of the encoding motor passes through the inner cavity of the shell and is connected to the worm gear transmission, the other end of the worm gear is movably connected to the inner wall of the shell through a bearing, the worm gear is meshed with the worm wheel, one end of the connecting rod is fixedly connected to the worm wheel, the other end of the connecting rod passes through the inner cavity of the mounting box and is fixedly connected to the first bevel gear, one end of the support rod is fixedly connected to the worm wheel, and the other end of the support rod is fixedly connected to the inner wall of the shell through a bearing.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model achieves the effect of opening and closing the cabinet door by arranging a bracket, a reduction assembly, a transmission assembly, a transmission shaft, a movable assembly, an encoding motor and an emergency screwdriver. The cooperation of the reduction assembly, the transmission assembly, the transmission shaft, the movable assembly and the encoding motor can increase the distance for starting to close the door, thereby reducing the cabinet door's ability to rebound outwards and making the door closing safer and more reliable. The emergency screwdriver can be used to perform emergency opening and closing in the event of a fault, thereby bringing convenience to the use of the electric cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the installation box of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection state of the deceleration component and the encoder motor of the utility model;

[0018] Figure 4 It is a schematic diagram of the assembly structure of the utility model;

[0019] Figure 5 The utility model is a schematic diagram of the electrical principle of automatic control of door opening and closing.

[0020] In the figure:

[0021] 1. Bracket; 2. Speed ​​reduction assembly; 201. Housing; 202. Worm; 203. Worm wheel; 204. Connecting rod; 205. Support rod; 3. Transmission assembly; 301. Mounting box; 302. First bevel gear; 303. Second bevel gear; 4. Transmission shaft; 5. Movable assembly; 501. Mounting box; 502. Nut; 503. Screw; 6. Encoding motor; 7. Emergency screwdriver. DETAILED DESCRIPTION

[0022] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0023] Example 1

[0024] like Figure 1-5 As shown, it is the first embodiment of the utility model, which provides an electric cabinet switch door screw propeller, including a bracket 1, a reduction assembly 2 is arranged at the bottom of the bracket 1, the upper and lower ends of the inner cavity of the bracket 1 are provided with transmission assemblies 3, a transmission shaft 4 is arranged between the two transmission assemblies 3, the upper and lower ends of one side of the bracket 1 are provided with movable assemblies 5, an encoding motor 6 is arranged on one side of the reduction assembly 2, an emergency screwdriver 7 is arranged on one side of the encoding motor 6, the encoding motor 6 and the reduction assembly 2 are used to provide power to the transmission assembly 3, the transmission assembly 3 is used to provide power to the movable assembly 5, and the emergency screwdriver 7 is used for emergency use.

[0025] like Figure 1-4As shown, the encoder motor 6 drives the reduction assembly 2 to move, so that the reduction assembly 2 drives the transmission assembly 3 to move, and the lower end transmission assembly 3 drives the upper end transmission assembly 3 to move through the transmission shaft 4, so that the two transmission assemblies 3 can drive the two movable assemblies 5 to move simultaneously, so that the cabinet door can be opened and closed, and the emergency screwdriver 7 can perform emergency opening and closing in case of failure. The output end of the emergency screwdriver 7 is connected to the tail shaft of the encoder motor 6 through the linkage shaft, so that the encoder motor 6 can be operated in case of failure of the encoder motor 6. Through the coordination of the reduction assembly 2, the transmission assembly 3, the transmission shaft 4, the movable assembly 5 and the encoder motor 6, the starting distance of door closing can be increased, thereby reducing the outward rebound ability of the cabinet door, making the door closing safer and more reliable, and also adopts digital electrical control to accurately position the switch door, control the spring rebound phenomenon, and reduce the occurrence of accidents.

[0026] Example 2

[0027] Reference Figure 1 and 2 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0028] In this embodiment, the transmission assembly 3 includes a mounting box 301 , a first bevel gear 302 and a second bevel gear 303 , and the mounting box 301 is fixedly connected to the inner wall of the bracket 1 .

[0029] The first bevel gear 302 is meshed with the second bevel gear 303 , and both ends of the transmission shaft 4 respectively penetrate into the inner cavities of the two installation boxes 301 and are fixedly connected to the first bevel gear 302 .

[0030] The movable assembly 5 includes an installation box 501 , a nut 502 and a screw rod 503 . The nut 502 is disposed in an inner cavity of the installation box 501 .

[0031] One end of the screw rod 503 extends to the inner cavity of the nut 502 and is movably connected to the inner cavity of the nut 502 , and the other end of the screw rod 503 penetrates into the inner cavity of the installation box 301 and is fixedly connected to the second bevel gear 303 .

[0032] like Figure 1 and 2As shown, when the connecting rod 204 rotates, it drives the first bevel gear 302 at the lower end to rotate, so that the first bevel gear 302 drives the second bevel gear 303 at the lower end to rotate. When the first bevel gear 302 at the lower end rotates, the first bevel gear 302 at the upper end is driven to rotate through the transmission shaft 4, so that the first bevel gear 302 at the upper end drives the second bevel gear 303 at the upper end to rotate. When the two second bevel gears 303 rotate, they drive the screw rod 503 to rotate along the inner cavity of the screw nut 502. The installation box 501 is installed on the surface of the door frame. The nut 502 is processed into an M12 ladder nut with a flat spherical shape and is embedded in a steel sleeve and installed in the inner cavity of the installation box 501, so that the movable component 5 forms a movable joint. When the door panel is not subjected to the pressure of the spring sheet rebounding, the distance is>75mm. When the door panel is opened by 75mm, the angle between the door panel and the door frame is 10 degrees. The angle between the screw rod 503 and the nut 502 is 5 degrees. If this device is not added, the door will be stuck when closing. The door closing starting distance can be increased with the lengthening of the screw rod 503, thereby reducing the outward rebound ability of the shielding door and making the door closing safer and more reliable.

[0033] Example 3

[0034] Reference Figure 1 and 3 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0035] In this embodiment, the reduction assembly 2 includes a housing 201, a worm 202, a worm wheel 203, a connecting rod 204 and a support rod 205. The worm 202, the worm wheel 203, the connecting rod 204 and the support rod 205 are all installed in the inner cavity of the housing 201, and the encoder motor 6 is fixedly connected to the housing 201.

[0036] The output shaft of the encoding motor 6 passes through the inner cavity of the shell 201 and is connected to the worm 202 for transmission. The other end of the worm 202 is movably connected to the inner wall of the shell 201 through a bearing. The worm 202 is meshed with the worm wheel 203. One end of the connecting rod 204 is fixedly connected to the worm wheel 203. The other end of the connecting rod 204 passes through the inner cavity of the installation box 301 and is fixedly connected to the first bevel gear 302. One end of the support rod 205 is fixedly connected to the worm wheel 203. The other end of the support rod 205 is fixedly connected to the inner wall of the shell 201 through a bearing.

[0037] like Figure 1 and 3 As shown, the output shaft of the encoding motor 6 rotates to drive the worm 202 to rotate, and the worm 202 drives the worm wheel 203 to rotate when it rotates. When the worm wheel 203 rotates, the support rod 205 can support it. When the worm wheel 203 rotates, it drives the first bevel gear 302 at the lower end to rotate through the connecting rod 204, thereby providing power to the transmission assembly 3.

[0038] When in use, the output shaft of the encoding motor 6 rotates to drive the worm 202 to rotate, and when the worm 202 rotates, it drives the worm wheel 203 to rotate. When the worm wheel 203 rotates, the support rod 205 can support it. When the worm wheel 203 rotates, the lower first bevel gear 302 is driven to rotate through the connecting rod 204. When the connecting rod 204 rotates, it drives the lower first bevel gear 302 to rotate, so that the first bevel gear 302 drives the lower second bevel gear 303 to rotate. When the lower first bevel gear 302 rotates, the upper first bevel gear 302 is driven to rotate through the transmission shaft 4, so that the upper first bevel gear 302 drives the upper second bevel gear 303 to rotate. The second bevel gear 303 at the end rotates, and the two second bevel gears 303 rotate while driving the screw rod 503 to rotate along the inner cavity of the nut 502, so that the movable component 5 forms a movable joint, when the door panel is not subjected to the pressure distance of the spring sheet rebounding is> 75mm, when the door panel is opened 75mm, the angle between the door panel and the door frame is 10 degrees, and the angle between the screw rod 503 and the nut 502 is 5 degrees. If this device is not added, the door will be stuck when closing. The door closing starting distance can be increased with the lengthening of the screw rod 503, thereby reducing the outward rebound ability of the shielding door, making the door closing safer and more reliable. When the electrical control fails, the emergency switch can be performed through the emergency screwdriver 7.

[0039] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0040] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A screw propeller for a switch door of an electric cabinet, comprising a bracket (1), characterized in that: A deceleration assembly (2) is arranged at the bottom of the bracket (1), a transmission assembly (3) is arranged at the upper end and the lower end of the inner cavity of the bracket (1), a transmission shaft (4) is arranged between the two transmission assemblies (3), a movable assembly (5) is arranged at the upper end and the lower end of one side of the bracket (1), an encoding motor (6) is arranged at one side of the deceleration assembly (2), an emergency screwdriver (7) is arranged at one side of the encoding motor (6), the encoding motor (6) and the deceleration assembly (2) are used to provide power to the transmission assembly (3), the transmission assembly (3) is used to provide power to the movable assembly (5), and the emergency screwdriver (7) is used for emergency use.

2. The screw propeller for the electric cabinet door opening and closing as claimed in claim 1, characterized in that: The transmission assembly (3) comprises a mounting box (301), a first bevel gear (302) and a second bevel gear (303); the mounting box (301) is fixedly connected to the inner wall of the bracket (1).

3. The screw propeller for the electric cabinet door opening and closing as claimed in claim 2, characterized in that: The first bevel gear (302) is meshed with the second bevel gear (303), and the two ends of the transmission shaft (4) respectively penetrate the inner cavities of the two installation boxes (301) and are fixedly connected to the first bevel gear (302).

4. The screw propeller for the electric cabinet door opening and closing as claimed in claim 1, characterized in that: The movable assembly (5) comprises an installation box (501), a nut (502) and a screw rod (503), wherein the nut (502) is disposed in the inner cavity of the installation box (501).

5. The screw propeller for the electric cabinet door opening and closing as claimed in claim 4, characterized in that: One end of the screw rod (503) extends to the inner cavity of the nut (502) and is movably connected to the inner cavity of the nut (502), and the other end of the screw rod (503) penetrates into the inner cavity of the installation box (301) and is fixedly connected to the second bevel gear (303).

6. The screw propeller for the electric cabinet door opening and closing as claimed in claim 1, characterized in that: The reduction assembly (2) comprises a housing (201), a worm (202), a worm wheel (203), a connecting rod (204) and a support rod (205); the worm (202), the worm wheel (203), the connecting rod (204) and the support rod (205) are all installed in the inner cavity of the housing (201); and the encoding motor (6) is fixedly connected to the housing (201).

7. The screw propeller for the electric cabinet door opening and closing as claimed in claim 6, characterized in that: The output shaft of the encoding motor (6) passes through the inner cavity of the housing (201) and is transmission-connected to the worm (202); the other end of the worm (202) is movably connected to the inner wall of the housing (201) via a bearing; the worm (202) is meshed with the worm wheel (203); one end of the connecting rod (204) is fixedly connected to the worm wheel (203); the other end of the connecting rod (204) passes through the inner cavity of the installation box (301) and is fixedly connected to the first bevel gear (302); one end of the support rod (205) is fixedly connected to the worm wheel (203); the other end of the support rod (205) is fixedly connected to the inner wall of the housing (201) via a bearing.

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