A drilling device for the uninterruptible outer box of a power cabinet

Abstract

The present invention discloses an uninterrupted power supply external box drilling device for an electric cabinet, comprising: a drill bit, a driving device, and a suction cup. The drill bit comprises a rotating shaft, the rotating shaft comprises a connecting end and a working end, the working end of the rotating shaft is provided with a ring cutter, the side of the ring cutter facing away from the connecting end of the rotating shaft is provided with serrations, the end of the rotating shaft close to the ring cutter is provided with a slide groove, a sliding shaft is slidably connected in the slide groove, a spring is provided in the slide groove, and a magnet is provided at the end of the sliding shaft away from the spring; the driving device is connected to the connecting end of the rotating shaft and is used to drive the drill bit to rotate; the suction cup is provided on the side of the driving device close to the drill bit, and the suction cup is connected to the driving device via a telescopic rod. Compared with the prior art, the uninterrupted power supply external box drilling device provided by the present invention has the following beneficial effects: 1. The external box can be cut, and then a sensor can be installed on the external box without powering off.

Description

Technical Field

[0001] The present invention relates to the technical field of live working, in particular to a device for drilling holes in an uninterrupted outer box of an electric cabinet. Background Art

[0002] When a power cabinet is in use, it is necessary to install temperature and humidity sensors inside the cabinet to monitor the temperature and humidity inside the cabinet. Existing installation methods require disconnecting the cabinet from the power supply for safety reasons, then opening the outer box and installing the temperature and humidity sensors inside the cabinet. This existing installation technique affects user electricity usage. Summary of the Invention

[0003] In order to solve the above-mentioned shortcomings of the prior art, the present invention provides a device for drilling holes in the outer box of an electric cabinet without power outage.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for drilling holes in an outer box of an electric cabinet without power outages, comprising: a drill bit, a drive device, and a suction cup, wherein the drill bit comprises a rotating shaft, the rotating shaft comprises a connecting end and a working end, the working end of the rotating shaft is sleeved with a ring cutter, and the side of the ring cutter facing away from the connecting end of the rotating shaft is provided with saw teeth for cutting the outer box, the saw teeth are arranged along the circumference of the ring cutter, the ring cutter and the rotating shaft are fixedly connected, a slide groove is provided at one end of the rotating shaft close to the ring cutter, a sliding shaft is slidingly connected in the slide groove, a spring is provided in the slide groove, one end of the spring is connected to the bottom of the slide groove, the other end of the spring is connected to the sliding shaft, and a magnet is provided at the end of the sliding shaft away from the spring; the drive device is connected to the connecting end of the rotating shaft and is used to drive the drill bit to rotate; the suction cup is provided on the side of the drive device close to the drill bit, and the suction cup is connected to the drive device through a telescopic rod.

[0006] Furthermore, the sliding shaft is provided with a limiting groove, the extension direction of the limiting groove is consistent with the extension direction of the rotating shaft, the rotating shaft is threadedly connected with a limiting bolt, and the limiting bolt is at least partially arranged in the limiting groove.

[0007] Furthermore, a bearing is provided on the end of the sliding shaft away from the spring, and the bearing includes an inner ring and an outer ring. The inner ring is sleeved on the sliding shaft and abuts against the sliding shaft. The magnet is provided on the side of the bearing away from the spring, and a limiting sleeve is provided on the end of the sliding shaft away from the spring. The bearing and the magnet are arranged in the limiting sleeve, and the outer ring abuts against the limiting sleeve.

[0008] Furthermore, the magnet is at least partially arranged outside the ring cutter.

[0009] Furthermore, the sawtooth includes a scraping surface and a bevel, which intersect at an angle and are arranged at intervals along the circumference of the ring knife. The scraping surface extends along the axial direction of the ring knife, and the end of the scraping surface away from the connecting end intersects with the bevel to form a tooth tip. A first surface is provided on the outside of the tooth tip, and the first surface extends along the axial direction of the ring knife. The distance from the first surface to the axis of the ring knife is a. A second surface is provided on the outside of the ring knife, and the distance from the second surface to the axis of the ring knife is b, a is less than b, and a transition surface is provided on the outside of the sawtooth, and the first surface transitions to the second surface through the transition surface. The wall thickness of the outer box is t, the length of the first surface in the axial direction of the ring knife is c, t is less than or equal to c, the length of the transition surface in the axial direction of the ring knife is d, and the length of the scraping surface in the axial direction of the ring knife is e, the sum of c and d is f, and f is less than e.

[0010] Furthermore, the difference between b and a is greater than or equal to 0.3 mm and less than or equal to 0.6 mm.

[0011] Compared with the prior art, the present invention provides an uninterrupted power-supply outer box drilling device having the following beneficial effects: 1. The outer box can be cut and then a sensor can be installed on the outer box without powering off; 2. The cutting disc generated during cutting is taken out of the power cabinet, thereby preventing the cutting disc from falling into the power cabinet and affecting the operation of electrical components; 3. The drill bit has a hole-reaming function, which facilitates the removal of the cutting disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of an embodiment of the present application.

[0013] Figure 2 A schematic diagram of a drill bit according to an embodiment of the present application.

[0014] Figure 3 For the embodiments of this application Figure 2 AA cross-sectional view.

[0015] Figure 4 This is a schematic diagram of the outer box body adsorbed on the limiting sleeve in an embodiment of the present application.

[0016] Figure 5 This is a schematic diagram of a drill bit drilling through an outer box according to an embodiment of the present application.

[0017] Figure 6 Schematic diagram of hole enlargement according to an embodiment of the present application.

[0018] Figure 7 This is a schematic diagram of a cutting sheet being taken out according to an embodiment of the present application.

[0019] In the figure: drill bit 11, rotating shaft 111, connecting end 1111, working end 1112, ring cutter 1113, serrations 11131, scraping surface 11132, inclined surface 11133, tooth tip 11134, first surface 11135, second surface 11136, transition surface 11137, slide groove 1114, sliding shaft 1114a, spring 1114b, magnet 1114c, limiting groove 1114d, bearing 1114e, inner ring 1114f, outer ring 1114g, limiting sleeve 1114h, limiting bolt 1115, drive device 12, suction cup 13, telescopic rod 131, outer box body 21. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0021] See also Figures 1 to 7 A drilling device for an uninterruptible outer box 21 of an electric cabinet includes a drill bit 11, a driving device 12, and a suction cup 13. The drill bit 11 includes a rotating shaft 111, the rotating shaft 111 includes a connecting end 1111 and a working end 1112, the working end 1112 of the rotating shaft 111 is provided with a ring cutter 1113, and the side of the ring cutter 1113 facing away from the connecting end 1111 of the rotating shaft 111 is provided with saw teeth 11131 for cutting the outer box 21, and the saw teeth 11131 are arranged along the circumference of the ring cutter 1113. The ring cutter 1113 is fixedly connected to the rotating shaft 111. A sliding groove 1114 is provided at one end of the rotating shaft 111 close to the ring cutter 1113. A sliding shaft 1114a is slidably connected in the sliding groove 1114. A spring 1114b is provided in the sliding groove 1114. One end of the spring 1114b is connected to the bottom of the groove 1114. The other end of the spring 1114b is connected to the sliding shaft 1114a. A magnet 1114c is provided at the end of the sliding shaft 1114a away from the spring 1114b. The driving device 12 is connected to the connecting end 1111 of the rotating shaft 111 and is used to drive the drill bit 11 to rotate. The suction cup 13 is provided on the side of the driving device 12 close to the drill bit 11. The suction cup 13 is connected to the driving device 12 via a telescopic rod 131.

[0022] The sliding shaft 1114a is provided with a limiting groove 1114d, the extension direction of the limiting groove 1114d is consistent with the extension direction of the rotating shaft 111, the rotating shaft 111 is threadedly connected to the limiting bolt 1115, and the limiting bolt 1115 is at least partially set in the limiting groove 1114d.

[0023] A bearing 1114e is sleeved on the end of the sliding shaft 1114a away from the spring 1114b. The bearing 1114e includes an inner ring 1114f and an outer ring 1114g. The inner ring 1114f is sleeved on the sliding shaft 1114a and abuts against the sliding shaft 1114a. A magnet 1114c is provided on the side of the bearing 1114e away from the spring 1114b. A limiting sleeve 1114h is provided on the end of the sliding shaft 1114a away from the spring 1114b. The bearing 1114e and the magnet 1114c are disposed within the limiting sleeve 1114h, and the outer ring 1114g abuts against the limiting sleeve 1114h. The magnet 1114c is at least partially disposed outside the ring cutter 1113.

[0024] The sawtooth 11131 includes a scraping surface 11132 and an inclined surface 11133. The scraping surface 11132 and the inclined surface 11133 are obliquely intersected and arranged at intervals along the circumference of the ring knife 1113. The scraping surface 11132 extends along the axial direction of the ring knife 1113. The end of the scraping surface 11132 away from the connecting end 1111 intersects with the inclined surface 11133 to form a tooth tip 11134. The outer side of the tooth tip 11134 is provided with a first surface 11135. The first surface 11135 extends along the axial direction of the ring knife 1113. The distance from the first surface 11135 to the axis of the ring knife 1113 is a. The outer side of the ring knife 1113 is provided with a tooth tip 11134. A second surface 11136 is provided, and the distance between the second surface 11136 and the axis of the ring blade 1113 is b, where a is less than b. A transition surface 11137 is provided on the outer side of the sawtooth 11131, and the first surface 11135 transitions to the second surface 11136 via the transition surface 11137. The wall thickness of the outer box 21 is t, and the length of the first surface 11135 in the direction of the axis of the ring blade 1113 is c, where t is less than or equal to c. The length of the transition surface 11137 in the direction of the axis of the ring blade 1113 is d, and the length of the scraping surface 11132 in the direction of the axis of the ring blade 1113 is e. The sum of c and d is f, where f is less than e. The difference between b and a is greater than or equal to 0.3 mm and less than or equal to 0.6 mm.

[0025] Principle of the embodiment:

[0026] When a temperature sensor or humidity sensor needs to be installed, you only need to drill a hole on the outer box 21, and then extend the probes of the temperature sensor and humidity sensor into the power cabinet through the hole to detect the temperature and humidity inside the power cabinet, and finally fix the temperature sensor and humidity sensor on the outer box 21. The entire process does not require power off, reducing the impact on users.

[0027] Specifically, the suction cup 13 is first adsorbed on the outer wall of the outer box 21, the driving device 12 can be set as a motor, the telescopic rod 131 is extended, and the magnet 1114c moves toward the outer box 21 until the limiting sleeve 1114h and the outer box 21 are abutted. Under the action of the magnet 1114c, the outer box 21 is adsorbed on the limiting sleeve 1114h, see Figure 4 Then the driving device 12 is operated, the drill bit 11 rotates, pushing the driving device 12, and the saw teeth 11131 rotate while moving toward the outer box body 21. Under the action of the bearing 1114e, the magnet 1114c does not rotate, and the scraping surface 11132 rotates to cut the side wall of the outer box body 21 and drill through the side wall of the outer box body 21 to form a hole. Since t is less than or equal to c, when the side wall of the outer box body 21 is drilled through, the inner wall of the hole abuts against the first surface 11135, and the side wall of the outer box body 21 is cut by the drill bit 11, and the cutting piece is attracted by the magnet 1114c. Figure 5 The driving device 12 is further pushed, and under the action of the transition surface 11137, the hole moves to the second surface 11136. In this process, the scraping surface 11132 expands the inner diameter of the hole, see Figure 6 Then stop the driving device 12 and pull the driving device 12 outwards to remove the cutting blade from the power cabinet, thereby preventing the cutting blade from affecting the operation of the electrical components in the power cabinet. Figure 7 .

[0028] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A non-stop drilling device for the outer box of a power cabinet, characterized in that: include: The drill bit includes a rotating shaft, the rotating shaft includes a connecting end and a working end, the working end of the rotating shaft is sleeved with a ring cutter, and the side of the ring cutter facing away from the connecting end of the rotating shaft is provided with saw teeth for cutting the outer box body, the saw teeth are arranged along the circumference of the ring cutter, the ring cutter and the rotating shaft are fixedly connected, and an end of the rotating shaft close to the ring cutter is provided with a slide groove, a sliding shaft is slidably connected in the slide groove, a spring is provided in the slide groove, one end of the spring is connected to the bottom of the slide groove, and the other end of the spring is connected to the sliding shaft, and the end of the sliding shaft away from the spring is provided with a magnet; a driving device connected to the connecting end of the rotating shaft and used to drive the drill bit to rotate; Suction cup; the suction cup is provided on one side of the drive device close to the drill bit, the suction cup is moved closer to or away from the drill bit through the telescopic rod and the drive device; The sawtooth includes a scraping surface and an inclined surface, the scraping surface and the inclined surface are obliquely intersected and arranged at intervals along the circumference of the ring knife, the scraping surface extends along the axial direction of the ring knife, and one end of the scraping surface away from the connecting end intersects with the inclined surface to form a tooth tip, and a first surface is provided on the outer side of the tooth tip, the first surface extends along the axial direction of the ring knife, the distance from the first surface to the axis of the ring knife is a, and a second surface is provided on the outer side of the ring knife, the distance from the second surface to the axis of the ring knife is b, and a is less than b, a transition surface is provided on the outer side of the sawtooth, the first surface transitions to the second surface through the transition surface, the wall thickness of the outer box body is t, the length of the first surface in the axial direction of the ring knife is c, and t is less than or equal to c, the length of the transition surface in the axial direction of the ring knife is d, the length of the scraping surface in the axial direction of the ring knife is e, the sum of c and d is f, and f is less than e; The difference between b and a is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; The magnet is at least partially arranged outside the ring knife.

2. The uninterruptible power cabinet outer box drilling device according to claim 1 is characterized in that: The sliding shaft is provided with a limiting groove, the extension direction of the limiting groove is consistent with the extension direction of the rotating shaft, the rotating shaft is threadedly connected to a limiting bolt, and the limiting bolt is at least partially arranged in the limiting groove.

3. The uninterruptible power cabinet outer box drilling device according to claim 2, characterized in that: A bearing is provided at one end of the sliding shaft away from the spring, and the bearing includes an inner ring and an outer ring. The inner ring is sleeved on the sliding shaft and abuts against the sliding shaft. The magnet is provided on the side of the bearing away from the spring. A limiting sleeve is provided at the end of the sliding shaft away from the spring. The bearing and the magnet are provided in the limiting sleeve, and the outer ring abuts against the limiting sleeve.

Images