Dustproof device for GIS (Gas Insulated Switchgear) equipment

Abstract

The utility model discloses a GIS equipment dustproof device, an opening and closing petal assembly comprises two symmetrical opening and closing petals, a transmission device comprises a driving gear, two symmetrical transmission gears meshed with the driving gear, two symmetrical transmission shafts and a connecting shaft, the driving gear is located between the two transmission gears, and the end, close to the driving gear, of each transmission shaft penetrates through a support. One transmission shaft is connected with two first driven gears, the other transmission shaft is connected with two second driven gears, a connecting shaft is located below the transmission shafts, two sets of connecting gear assemblies are arranged on the connecting shaft and comprise a forward gear and a reverse gear, and the bottom ends of the forward gear and the reverse gear are connected with opening and closing flaps through connecting blocks. According to the connecting rod transmission mechanism, the transmitted load can be dispersed based on the gear tooth design of the gear, so that the gear transmission can bear larger torque and load, and the risk of breakage caused by metal fatigue in the connecting rod transmission is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of GIS, in particular to a dust-proof device for GIS equipment. Background Technique

[0002] When installing GIS equipment, a sealed and dust-free installation environment needs to be constructed. At present, it is generally installed in a dust-proof room. In view of the influence of the development of modern GIS technology, the installation technical means are also being simplified. When installing the equipment, considering the requirements of sealing and dust-free, other devices need to be designed to replace the dust-proof room to reduce the installation cost and difficulty. Simply adopting mechanical devices cannot completely achieve the sealing and dust-proof effect, and the device has a large volume and is not easy to operate, resulting in a significant increase in labor costs. To solve the problems existing in the prior art, people have carried out long-term exploration and proposed various solutions.

[0003] For example, as disclosed in Chinese Patent Authorization Publication No.: CN204019636U, Authorization Publication Date: October 29, 2021, there is disclosed an opening and closing type dust-proof device for GIS equipment installation, including a mounting plate, characterized in that: the dust-proof device includes a pair of opening and closing devices arranged oppositely, the opening and closing device includes an interface retaining ring installed at the pipe orifice of the GIS equipment pipe body, a bracket sleeved on the GIS equipment pipe body and located inside the interface retaining ring, a transmission device connected to the upper end of the bracket, a pair of opening and closing flaps controlled by the transmission device to open and close, and an air filtering device communicated with the interface retaining ring. One of the opening and closing devices further includes a soft layer ejection device arranged between the interface retaining ring and the pair of opening and closing flaps, and the opening and closing of the pair of opening and closing flaps cooperate with the soft layer ejection device to achieve the dust-proof effect on the GIS equipment pipe body. The disadvantage is that its transmission device uses a connecting rod transmission, and in long-term use, there is a risk of breakage due to metal fatigue in the connecting rod transmission. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dust-proof device for GIS equipment to solve the problems put forward in the above background technique.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a GIS equipment dustproof device, the dustproof device includes a pair of opening and closing devices arranged relatively, one of the opening and closing devices is installed at the mobile end when the GIS equipment pipe body is docked, and the other opening and closing device is installed at the fixed end when the GIS equipment pipe body is docked, the opening and closing device includes an interface retaining ring installed at the pipe mouth of the GIS equipment pipe body, a bracket sleeved on the GIS equipment pipe body and located on the inner side of the interface retaining ring, a transmission device connected to the upper end of the bracket, and an opening and closing flap assembly controlled by the transmission device, one of the opening and closing devices also includes a soft layer pop-up device arranged between the interface retaining ring and the opening and closing flap assembly, the opening and closing of the opening and closing flap assembly cooperates with the soft layer pop-up device to achieve a dustproof effect on the GIS equipment pipe body, the opening and closing flap assembly includes two symmetrically arranged opening and closing flaps, and the transmission device includes a rotatably connected A driving gear on the outer wall of one of the brackets, two mutually meshing transmission gears, two transmission shafts symmetrically and rotatably arranged between the two brackets, and a connecting shaft fixedly arranged between the two brackets, the driving gear meshes with one of the transmission gears, and the ends of the two transmission shafts close to the driving gear pass through the brackets and are respectively connected to the two transmission gears, one of the transmission shafts is connected to two first driven gears for transmission, and the other transmission shaft is connected to two second driven gears for transmission, the connecting shaft is arranged below the transmission shaft, and the connecting shaft is rotatably connected to two connecting gear assemblies, the connecting gear assembly includes a forward gear and a reverse gear, the bottom ends of the forward gear and the reverse gear in the same group are respectively fixedly connected to the top ends of the two opening and closing petals in the same group through two connecting blocks, the first driven gear meshes with the forward gear on the corresponding side, and the second driven gear meshes with the reverse gear on the corresponding side.

[0006] Furthermore, a locking mechanism is provided at the bottom end of the opening and closing flap assembly, and the locking mechanism is a spring snap lock. The spring snap lock includes a hook structure and a lock body. The hook structure is fixedly installed on the bottom end of one of the opening and closing flaps, and the lock body is fixedly installed on the bottom end of the other opening and closing flap.

[0007] Furthermore, the opening and closing flap includes an opening and closing piece and an arc-shaped plate integrally arranged along the outer wall of the opening and closing piece, and the arc-shaped plate is located on a side of the opening and closing piece close to the interface retaining ring on the same side.

[0008] Furthermore, a sealing strip is provided on the inner wall of the arc plate close to the interface retaining ring on the same side.

[0009] The beneficial effects achieved by the utility model are:

[0010] 1. The gear-based tooth design can disperse the transmitted load, allowing the gear transmission to withstand larger torques and loads, thereby avoiding the risk of connecting rod transmission breaking due to metal fatigue.

[0011] 2. Meanwhile, the meshing between the gear teeth is tight, and the energy loss during the transmission process is small.

[0012] 3. The transmission ratio of gear transmission is very accurate, and the manufacturing precision of gears is relatively high, enabling the transmission ratio of gear transmission to remain stable and accurate, which is crucial for application scenarios that require precise control of rotational speed and torque. In contrast, the transmission ratio of link transmission may be affected by factors such as link length and angle, and relatively speaking, the accuracy of link transmission may be slightly inferior. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a dust-proof device for a GIS device in an embodiment;

[0014] Figure 2 It is a schematic structural diagram of an opening and closing flap assembly in an embodiment;

[0015] Figure 3 It is a schematic structural diagram of a locking mechanism in an embodiment. Detailed Embodiment

[0016] The following further describes the present utility model with reference to the drawings.

[0017] Such as Figure 1-2As shown, the utility model discloses a GIS equipment dust prevention device, including: the dust prevention device includes a pair of opening and closing devices arranged relatively, one of which is installed at the mobile end of the GIS equipment pipe body 1 when docking, and the other is installed at the fixed end of the GIS equipment pipe body 1 when docking, the opening and closing device includes an interface retaining ring 2 installed at the pipe mouth of the GIS equipment pipe body 1, a bracket 3 sleeved on the GIS equipment pipe body 1 and located on the inner side of the interface retaining ring 2, a transmission device 4 connected to the upper end of the bracket 3, and an opening and closing flap assembly controlled by the transmission device 4, one of the opening and closing devices also includes a soft layer pop-up device 6 arranged between the interface retaining ring 2 and the opening and closing flap assembly, the opening and closing of the opening and closing flap assembly cooperates with the soft layer pop-up device 6 to achieve a dust prevention effect on the GIS equipment pipe body 1, the opening and closing flap assembly includes two symmetrically arranged opening and closing flaps 5, the transmission device 4 includes a driving gear 41 rotatably connected to the outer side wall of one of the brackets 3, two mutually meshing transmission gears 42, Two transmission shafts 43 symmetrically and rotatably arranged between the two brackets 3 and a connecting shaft 44 fixedly arranged between the two brackets 3, the driving gear 41 is meshed with one of the transmission gears 42, one end of the two transmission shafts 43 close to the driving gear 41 passes through the bracket 3, and are respectively connected to the two transmission gears 42, one of the transmission shafts 43 is connected to two first driven gears 431, and the other transmission shaft 43 is connected to two second driven gears 432, the connecting shaft 44 is arranged below the transmission shaft 43, and the connecting shaft 44 is rotatably connected to two connecting gear assemblies, the connecting gear assembly includes a forward gear 441 and a reverse gear 442, the bottom ends of the forward gear 441 and the reverse gear 442 of the same group are respectively fixedly connected to the top ends of the two opening and closing petals 5 of the same group through two connecting blocks 443, the first driven gear 431 is meshed with the forward gear 441 on the corresponding side, and the second driven gear 432 is meshed with the reverse gear 442 on the corresponding side;

[0018] Specifically, the driving gear 41 is transmission-connected with a driving shaft, one end of the driving shaft is rotationally connected to the outer wall of the bracket 3, and the driving shaft is transmission-connected to the execution end of an external motor (not shown in the figure).

[0019] Based on the above structure, Figure 1-2As shown in the figure, when it is necessary to drive the two opening and closing flaps 5 in the same group to close, the external electricity drives the driving gear 41 to rotate clockwise through the driving shaft. The driving gear 41 drives the two transmission gears 42 to rotate in opposite directions to each other through meshing. The two transmission gears 42 drive the first driven gear 431 and the second driven gear 432 to rotate through the two transmission shafts 43 respectively. The first driven gear 431 and the second driven gear 432 drive the positive gear 441 and the reverse gear 442 in the same group to rotate in opposite directions to each other through meshing. The positive gear 441 and the reverse gear 442 drive the two opening and closing flaps 5 in the same group to rotate through the two connecting blocks 443 respectively. The bottom end of the opening and closing flap 5 rotates downward with the axis of the connecting shaft 44 as the center of the circle until the two opening and closing flaps 5 are closed. Similarly, when it is necessary to open the two opening and closing flaps 5 in the same group, the driving shaft drives the driving gear 41 to rotate counterclockwise.

[0020] Further, as Figure 1-3 shown, in order to prevent the two opening and closing flaps 5 in the same group from being opened by external force after closing, a locking mechanism is provided at the bottom end of the opening and closing flap assembly. The locking mechanism is a spring snap lock 8. The spring snap lock 8 includes a hook structure and a lock body. The hook structure is fixedly installed at the bottom end of one of the opening and closing flaps 5, and the lock body is fixedly installed at the bottom end of the other opening and closing flap 5. After the two opening and closing flaps 5 in the same group are closed, the lock between the lock body and the hook structure prevents the two opening and closing flaps 5 in the same group from being opened by external force.

[0021] Further, as Figure 2 shown, in order to increase the sealing performance, the opening and closing flap 5 includes an opening and closing piece 51 and an arc plate 52 integrally provided along the outer wall of the opening and closing piece 51. The arc plate 52 is located on the side of the opening and closing piece 51 close to the interface retaining ring 2 on the same side. The inner diameter of the arc plate 52 matches the outer diameter of the interface retaining ring 2. After the two opening and closing flaps 5 in the same group are closed, the connection between the opening and closing flap 5 and the interface retaining ring 2 on the same side is covered, thereby increasing the sealing performance between the opening and closing flap 5 and the interface retaining ring 2 on the same side.

[0022] Further, as Figure 2 shown, in order to further increase the sealing performance between the opening and closing flap 5 and the interface retaining ring 2 on the same side, a sealing strip 53 is provided on the inner wall of the arc plate 52 close to the interface retaining ring 2 on the same side.

[0023] The locking mechanism adopted by the present utility model is the same as the snap lock structure adopted in the mixer for precious metal extraction with a snap lock, with the publication number of CN206721305U and the patent name of "Mixer for precious metal extraction with a snap lock", which is already in the prior art and will not be elaborated here.

[0024] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A dust-proof device for GIS equipment. The dust-proof device includes a pair of opening and closing devices arranged oppositely. One of the opening and closing devices is installed at the mobile end when the GIS equipment pipe body (1) is docked, and the other opening and closing device is installed at the fixed end when the GIS equipment pipe body (1) is docked. The opening and closing device includes an interface retaining ring (2) installed at the pipe orifice of the GIS equipment pipe body (1), a bracket (3) sleeved on the GIS equipment pipe body (1) and located inside the interface retaining ring (2), a transmission device (4) connected to the upper end of the bracket (3), and an opening and closing flap assembly controlled by the transmission device (4) to open and close. One of the opening and closing devices further includes a soft layer ejection device (6) arranged between the interface retaining ring (2) and the opening and closing flap assembly. The opening and closing of the opening and closing flap assembly cooperate with the soft layer ejection device (6) to achieve the dust-proof effect on the GIS equipment pipe body (1). It is characterized in that: The opening and closing flap assembly comprises two symmetrically arranged opening and closing flaps (5), the transmission device (4) comprises a driving gear (41) rotatably connected to the outer wall of one of the brackets (3), two mutually meshing transmission gears (42), two transmission shafts (43) symmetrically and rotatably arranged between the two brackets (3), and a connecting shaft (44) fixedly arranged between the two brackets (3), the driving gear (41) meshes with one of the transmission gears (42), one end of the two transmission shafts (43) close to the driving gear (41) passes through the bracket (3) and is respectively connected to the two transmission gears (42), and one of the transmission shafts (43) is connected to two first driven gears ( 431), the other transmission shaft (43) is transmission-connected with two second driven gears (432), the connecting shaft (44) is arranged below the transmission shaft (43), the connecting shaft (44) is rotationally connected with two connecting gear assemblies, the connecting gear assemblies include a forward gear (441) and a reverse gear (442), the bottom ends of the forward gear (441) and the reverse gear (442) of the same group are respectively fixedly connected to the top ends of the two opening and closing flaps (5) of the same group through two connecting blocks (443), the first driven gear (431) is meshed with the forward gear (441) on the corresponding side, and the second driven gear (432) is meshed with the reverse gear (442) on the corresponding side.

2. The dust-proof device for a GIS device according to claim 1, wherein: A locking mechanism is provided at the bottom end of the opening and closing flap assembly, wherein the locking mechanism is a spring buckle lock (8), and the spring buckle lock (8) comprises a hook structure and a lock body, wherein the hook structure is fixedly mounted on the bottom end of one of the opening and closing flaps (5), and the lock body is fixedly mounted on the bottom end of the other opening and closing flap (5).

3. The dust-proof device for a GIS device according to claim 2, characterized in that: The opening and closing flap (5) comprises an opening and closing piece (51) and an arc-shaped plate (52) integrally arranged along the outer wall of the opening and closing piece (51); the arc-shaped plate (52) is located on a side of the opening and closing piece (51) close to the interface retaining ring (2) on the same side.

4. A dust-proof device for a GIS device according to claim 3, characterized in that: A sealing strip (53) is provided on the inner wall of the arc-shaped plate (52) close to the interface retaining ring (2) on the same side.

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