Inflatable dustproof plug for capacitor core

Abstract

The utility model relates to the technical field of capacitor accessories, in particular to an inflatable dustproof plug for a capacitor core, which comprises a plug cap, an inflation valve and an inflation plug body, the inflation valve is arranged on the plug cap in a penetrating manner, the inflation plug body is arranged on one side of the plug cap, and the inflatable dustproof plug further comprises a telescopic abutting device. The telescopic abutting device comprises abutting plates, a rack, a driving bevel gear, a connecting shaft and a rotating assembly, the abutting plates are slidably connected with the plug cap and located at the two ends of the plug cap, the rack is fixedly connected with the abutting plates and located at one end of the top of the abutting plates, the driving bevel gear is fixedly connected with the connecting shaft and located on one side of the driving bevel gear, and the connecting shaft is rotatably connected with the plug cap through a bearing. The rotating assembly is connected with the driving bevel gear and drives the driving bevel gear to rotate, and the effect of improving the installation stability and the dustproof effect of the inflatable dustproof plug is achieved.

Description

Technical Field

[0001] This utility model relates to the field of capacitor accessories technology, and in particular to an inflatable dust plug for capacitor cores. Background Technology

[0002] A capacitor is a device that stores electrical charge. Before the polypropylene film capacitor core is gold-plated, in order to prevent the metal dust generated during the gold plating process from entering the core cavity and causing a short circuit inside the core, dust plugs need to be inserted into the round holes at both ends of the core. The existing dust plugs are hollow cap-shaped rubber parts that are easily deformed and not durable. They can only be used once and cannot fit closely to the inner wall of the core, so some metal dust can still enter the core cavity.

[0003] Existing technology CN106298243B discloses an inflatable dust plug for capacitor cores, comprising an inflatable plug body and a plug cap, which are fixed together. The plug cap is equipped with an inflation valve and a display screen, and a controller is located inside the plug cap. The controller is connected to the display screen via wiring, and a pressure sensor is connected below the controller via wiring. This dust plug is safe and durable, can fit snugly against the inner wall of the core without gaps, ensuring dustproof performance, and can be used multiple times, reducing operating costs for enterprises.

[0004] However, in the above technology, the inflation of the plug body is done to make it fit closely to the inner wall of the mandrel, while the plug cap may be pushed out of the mandrel when it is inflated and fitted by the inflation of the plug body, which will affect the dustproof effect. Utility Model Content

[0005] The purpose of this invention is to provide an inflatable dust plug for capacitor cores, which solves the problem that in the prior art, the plug cap may be pushed out of the core shaft when the inflatable plug body is inflated and attached, thus affecting the dustproof effect.

[0006] To achieve the above objectives, this utility model provides an inflatable dust plug for a capacitor core, comprising a plug cap, an inflation valve, and an inflation plug body. The inflation valve is disposed through the plug cap, and the inflation plug body is disposed on one side of the plug cap.

[0007] It also includes a telescopic abutment device;

[0008] The telescopic abutment device includes an abutment plate, a rack, a drive bevel gear, a connecting shaft, and a rotating assembly. The abutment plate is slidably connected to the plug and located at both ends of the plug. The rack is fixedly connected to the abutment plate and located at one top end of the abutment plate. The drive bevel gear is fixedly connected to the connecting shaft and located on one side of the drive bevel gear. The connecting shaft is rotatably connected to the plug via a bearing. The rotating assembly is connected to the drive bevel gear and drives the drive bevel gear to rotate.

[0009] The rotating assembly includes a driving bevel gear and a mounting rotating member. The driving bevel gear meshes with the driving bevel gear and is located on one side of the driving bevel gear. The mounting rotating member is connected to the driving bevel gear and is mounted on the plug cap.

[0010] The mounting rotating component includes a rotating handle and a sealed bearing. The rotating handle is fixedly connected to the driving bevel gear and is located at the top of the driving bevel gear. One side of the sealed bearing is fixedly connected to the rotating handle, and the other side of the sealed bearing is fixedly connected to the plug cap. The sealed bearing rotatably connects the rotating handle and the plug cap.

[0011] The telescopic abutment device further includes a limiting block, which is fixedly connected to the abutment plate and located at the top of the abutment plate.

[0012] The plug has an installation groove and an installation cavity. The installation groove is located at both ends of the plug and cooperates with the abutment. The installation cavity is located above the installation groove and communicates with the installation groove.

[0013] This utility model discloses an inflatable dust plug for a capacitor core. First, the inflatable plug body is inserted into the core shaft, and the plug cap portion is inserted into the core shaft. Then, the rotating assembly drives two driving bevel gears to rotate. The two driving bevel gears mesh, driving two racks to move away from each other, causing two abutment plates to extend out of the plug cap and into the core shaft. Then, the inflation valve pushes gas into the inflatable plug body, ensuring a high degree of contact between the inflatable plug body and the core shaft, and compressing the two abutment plates. This ensures the inflatable dust plug for the capacitor core fits tightly against the core shaft, thereby improving the installation stability and dustproof effect of the inflatable dust plug. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the connection of the gas-filled dust plug for the capacitor core of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection between the telescopic abutment device and the stopper cap of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the telescopic abutment device of this utility model.

[0018] In the diagram: 101-Plug cap, 102-Inflation valve, 103-Inflation plug body, 104-Support plate, 105-Rack, 106-Drive bevel gear, 107-Connecting shaft, 108-Active bevel gear, 109-Handle, 110-Sealed bearing, 111-Limit block, 112-Mounting groove, 113-Mounting cavity. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the connection of the gas-filled dust plug for the capacitor core of this utility model. Figure 2 This is a schematic diagram showing the connection between the telescopic abutment device and the stopper cap of this utility model. Figure 3 This is a structural schematic diagram of the telescopic abutment device of this utility model.

[0021] This utility model discloses an inflatable dust plug for capacitor cores, comprising a plug cap 101, an inflation valve 102, an inflatable plug body 103, and a telescopic abutment device. The telescopic abutment device includes an abutment plate 104, a rack 105, a drive bevel gear 106, a connecting shaft 107, and a rotating assembly. The rotating assembly includes a drive bevel gear 108 and a mounting rotating component. The mounting rotating component includes a handle 109, a sealed bearing 110, and a limiting block 111. The plug cap 101 has a mounting groove 112 and a mounting cavity 113. This solution solves the problem in the prior art where the plug cap 101, when inflated and fitted by the inflatable plug body 103, might be pushed out of the core shaft, affecting the dustproof effect. It is understood that the aforementioned solution can improve the installation stability and dustproof effect of the inflatable dust plug through the telescopic abutment device.

[0022] In this embodiment, the inflation valve 102 is provided through the cap 101, and the inflation plug body 103 is provided on one side of the cap 101. The inflation plug body 103 and the cap 101 are fixed together. The cap 101 is provided with the inflation valve 102 and a display screen. The cap 101 has a controller inside, which is connected to the display screen through a wire. A pressure sensor is connected to the bottom of the controller through a wire, which can monitor the internal environmental parameters of the inflation plug body 103 in real time, ensuring the safety of the dust plug. The inflation plug body 103 fills the entire mandrel cavity, preventing metal dust from entering the mandrel cavity and causing a short circuit.

[0023] The abutment plate 104 is slidably connected to the plug cap 101 and located at both ends of the plug cap 101. The rack 105 is fixedly connected to the abutment plate 104 and located at one top end of the abutment plate 104. The drive bevel gear 106 is fixedly connected to the connecting shaft 107 and located on one side of the drive bevel gear 106. The connecting shaft 107 is rotatably connected to the plug cap 101 via a bearing. The rotating assembly is connected to the drive bevel gear 106 and drives the drive bevel gear 106 to rotate. The mounting groove 112 is disposed at both ends of the plug cap 101 and cooperates with the abutment plate 104. The mounting cavity 113 is disposed above the mounting groove 112 and communicates with the mounting groove 112. Two abutment plates 104 are respectively installed in the two mounting grooves 112 of the plug cap 101, and are slidably connected to the plug cap 101. The abutment plates 104 extend out of the plug cap 101, intercepting the plug cap 101 on the mandrel to prevent the plug cap 101 from not fitting the mandrel hole and affecting the dustproof effect. A rack 105 is fixedly mounted on the top of one end of each abutment plate 104. The side of each rack 105 near the drive bevel gear 106 is inclined and engages with the drive bevel gear 106. The drive bevel gear 106 is mounted via a connecting shaft 107, which is rotatably connected to the plug cap 101, enabling the rotatable mounting of the drive bevel gear 106. Two rotating components are respectively connected to the two drive bevel gears 106, driving the drive bevel gears 106 to rotate. The engagement of the 6 with the rack 105 causes the rack 105 to move horizontally. The movement of the rack 105 drives the fixedly connected abutment 104 to move, extending or retracting the plug cap 101. Therefore, the inflatable plug body 103 is first inserted into the mandrel, and the plug cap 101 is partially inserted into the mandrel. Then, the two drive bevel gears 106 are driven to rotate by the rotating assembly. The two drive bevel gears 106 mesh and drive the two racks 105. The two racks 105 move away from each other, causing the two abutment plates 104 to extend out of the plug cap 101 and into the mandrel. Then, the gas is pushed into the interior of the inflatable plug body 103 by the inflation valve 102, ensuring that the inflatable plug body 103 and the interior of the mandrel are highly fitted, and squeezing the two abutment plates 104, ensuring that the capacitor core is tightly fitted to the mandrel with the inflatable dust plug, thereby improving the installation stability and dustproof effect of the inflatable dust plug.

[0024] Secondly, the active bevel gear 108 meshes with the driving bevel gear 106 and is located on one side of the driving bevel gear 106; the mounting rotating member is connected to the active bevel gear 108 and is mounted on the plug cap 101. There are two active bevel gears 108, which are respectively disposed in the two mounting cavities 113 of the plug cap 101. The two active bevel gears 108 mesh with the two driving bevel gears 106 respectively. The mounting rotating member connected to the two active bevel gears 108 drives the connected active bevel gears 108 to rotate, and the meshing of the active bevel gears 108 drives the driving bevel gears 106 to rotate.

[0025] Meanwhile, the rotating handle 109 is fixedly connected to the driving bevel gear 108 and located at the top of the driving bevel gear 108; one side of the sealing bearing 110 is fixedly connected to the rotating handle 109, and the other side of the sealing bearing 110 is fixedly connected to the plug cap 101. The sealing bearing 110 rotatably connects the rotating handle 109 and the plug cap 101. There are two rotating handles 109, which are fixedly installed on the two driving bevel gears 108 respectively. The rotating handle 109 passes through the top of the plug cap 101 and extends into the mounting cavity 113. The rotating handle 109 is rotatably connected to the sealing bearing 110 near the through hole at the top of the plug cap 101. Thus, rotating the rotating handle 109 can drive the driving bevel gear 108 to rotate, and the rotating bevel gear meshes with and drives the driving bevel gear 106 to rotate.

[0026] Then, the limiting block 111 is fixedly connected to the abutment plate 104 and located on top of the abutment plate 104. The limiting block 111 is fixedly provided on both sides of the two abutment plates 104 at their closest points. The limiting block 111 cooperates with the two grooves at the upper end of the mounting groove 112. The cooperation between the limiting block 111 and the mounting groove 112 limits the length of the abutment plate 104 extending beyond the stopper cap 101, preventing the abutment plate 104 from detaching from the stopper cap 101.

[0027] When using the inflatable dust plug for capacitor cores according to this utility model, the inflatable plug body 103 is first inserted into the core shaft, and the plug cap 101 is partially inserted into the core shaft. Then, the two drive bevel gears 106 are driven to rotate by the rotating assembly. The two drive bevel gears 106 mesh and drive the two racks 105. The two racks 105 move away from each other, causing the two abutment plates 104 to extend out of the plug cap 101 and into the core shaft. Then, the gas is pushed into the interior of the inflatable plug body 103 through the inflation valve 102, ensuring that the inflatable plug body 103 and the interior of the core shaft are highly fitted, and squeezing the two abutment plates 104, ensuring that the inflatable dust plug for capacitor cores fits tightly against the core shaft, thereby improving the installation stability and dustproof effect of the inflatable dust plug.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A gas-filled dust plug for a capacitor core, comprising a plug cap, an inflation valve, and an inflation plug body, wherein the inflation valve is disposed through the plug cap, and the inflation plug body is disposed on one side of the plug cap, characterized in that, It also includes a telescopic abutment device; The telescopic abutment device includes an abutment plate, a rack, a drive bevel gear, a connecting shaft, and a rotating assembly. The abutment plate is slidably connected to the plug and located at both ends of the plug. The rack is fixedly connected to the abutment plate and located at one top end of the abutment plate. The drive bevel gear is fixedly connected to the connecting shaft and located on one side of the drive bevel gear. The connecting shaft is rotatably connected to the plug via a bearing. The rotating assembly is connected to the drive bevel gear and drives the drive bevel gear to rotate.

2. The gas-filled dust plug for capacitor core as described in claim 1, characterized in that, The rotating assembly includes a driving bevel gear and a mounting rotating member. The driving bevel gear meshes with the driving bevel gear and is located on one side of the driving bevel gear. The mounting rotating member is connected to the driving bevel gear and is mounted on the plug.

3. The gas-filled dust plug for capacitor core as described in claim 2, characterized in that, The mounting rotating component includes a handle and a sealed bearing. The handle is fixedly connected to the driving bevel gear and is located on top of the driving bevel gear. One side of the sealed bearing is fixedly connected to the handle, and the other side of the sealed bearing is fixedly connected to the plug cap. The sealed bearing rotatably connects the handle and the plug cap.

4. The gas-filled dust plug for capacitor core as described in claim 3, characterized in that, The telescopic abutment device also includes a limiting block, which is fixedly connected to the abutment plate and located at the top of the abutment plate.

5. The gas-filled dust plug for capacitor core as described in claim 1, characterized in that, The plug has a mounting groove and a mounting cavity. The mounting groove is located at both ends of the plug and cooperates with the abutment plate. The mounting cavity is located above the mounting groove and communicates with the mounting groove.

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