Busbar sealing device for tunnel flood gate

Abstract

The utility model discloses a busbar sealing device for a tunnel flood gate, and relates to the technical field of busbars. Comprising a box body, a sealing rubber block and a driving device, the box body is divided into a large box body and a small box body, the sealing rubber block comprises a small door leaf sealing rubber block assembly and a large door leaf sealing rubber block assembly, the small door leaf sealing rubber block assembly is arranged in the small box body, and the large door leaf sealing rubber block assembly is arranged in the large box body; the end of the small door leaf sealing rubber block assembly and the end of the large door leaf sealing rubber block assembly are each provided with soft rubber, the soft rubber can be combined to form a space matched with the busbar in shape, so that the structure formed after the soft rubber is combined is matched with the outer surface of the busbar in a sealed mode, and the driving device is matched with the sealing rubber blocks. The driving assemblies are used for driving the small door leaf sealing rubber block assembly and the large door leaf sealing rubber block assembly to act. The busbar sealing device is simple in structure and good in sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of busbars, in particular to a busbar sealing device used for a tunnel flood prevention door. Background Art

[0002] At present, in the application of subway tunnel engineering, for subway tunnel projects that pass under water bodies such as rivers and lakes, flood prevention gates should be installed at both ends of the tunnel under the water body or other measures should be taken to prevent flooding, so as to avoid the possibility of endangering the safety of other sections at both ends when the underwater tunnel is damaged.

[0003] In a subway that uses a rigid contact network for power supply, a bus and a rigid contact network are set up on the upper part of the subway tunnel. In the prior art, although there is a bus sealing device that can achieve bus sealing, its structure is relatively complex and the guiding effect is not good. At the same time, there will be some gaps after the bus sealing device seals the bus, the sealing is not tight, and the sealing effect is poor. Utility Model Content

[0004] The utility model aims to provide a busbar sealing device for a tunnel flood prevention door to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a busbar sealing device for a tunnel flood prevention door, the tunnel flood prevention door comprises a large door leaf and a small door leaf, the busbar sealing device is used for sealing the busbar when the large door leaf and the small door leaf are closed, the busbar sealing device comprises a box body, a sealing rubber block and a driving device, wherein the box body is divided into a large box body and a small box body, the large box body is fixedly mounted on the fan surface of the large door leaf, and the small box body is fixedly mounted on the fan surface of the small door leaf; the sealing rubber block comprises a small door leaf sealing rubber block assembly and a large door leaf sealing rubber block assembly, and the small door leaf sealing rubber block assembly is arranged inside the small box body, The large door leaf sealing rubber block assembly is arranged inside the large box, and the ends of the small door leaf sealing rubber block assembly and the large door leaf sealing rubber block assembly are respectively provided with soft rubber, and when the small door leaf sealing rubber block assembly and the large door leaf sealing rubber block assembly are spliced, the soft rubbers are combined with each other to form a space matching the outer shape of the bus, so that the combined structure of the soft rubbers is sealed with the outer surface of the bus; the driving device cooperates with the sealing rubber block, and is used to drive the small door leaf sealing rubber block assembly and the large door leaf sealing rubber block assembly to move respectively when the large door leaf and the small door leaf are closed, so as to realize the combination and separation of the soft rubbers.

[0006] Based on the above technical features, in the utility model, the large box is fixedly installed on the large door leaf, the small box is fixedly installed on the small door leaf, the small door leaf sealing block assembly and the large door leaf sealing block assembly are respectively installed in the small box and the large box, and the driving device can drive the small door leaf sealing block assembly and the large door leaf sealing block assembly to move respectively. When the large door leaf and the small door leaf are both closed and the bus needs to be sealed, the driving device can drive the small door leaf sealing block assembly and the large door leaf sealing block assembly to move together to clamp the bus to achieve the external sealing of the bus. At the same time, the ends of the small door leaf sealing block assembly and the large door leaf sealing block assembly are respectively provided with soft rubber, and the soft rubber is prefabricated according to the outer shape of the bus. Therefore, the bus sealing device in the utility model not only has a simple structure, but also has a good sealing effect.

[0007] Preferably in the present technical solution, the large door leaf sealing rubber block assembly includes a first sealing rubber block assembly, a second sealing rubber block assembly and a third sealing rubber block assembly, and the small door leaf sealing rubber block assembly includes a fourth sealing rubber block assembly, wherein the first sealing rubber block assembly, the second sealing rubber block assembly and the third sealing rubber block assembly are installed in the large box body and have a combined state and a disassembled state, when in the combined state, the first sealing rubber block assembly, the second sealing rubber block assembly and the third sealing rubber block assembly cooperate to form a semi-enclosed structure opening toward one side of the small door leaf, and when in the disassembled state, the first sealing rubber block assembly, the second sealing rubber block assembly and the third sealing rubber block assembly cooperate to form a semi-enclosed structure opening toward one side of the small door leaf, and when in the disassembled state, the first sealing rubber block assembly, the second sealing rubber block assembly and the third sealing rubber block assembly The sealing block assembly and the third sealing block assembly are far away from each other; the fourth sealing block assembly is movably installed in the small box, and also has a combined state and a separated state. When the first sealing block assembly, the second sealing block assembly and the third sealing block assembly are in the combined state, the fourth sealing block assembly switches from the separated state to the combined state, and cooperates with the semi-enclosed structure formed by the first sealing block assembly, the second sealing block assembly and the third sealing block assembly, so that the fourth sealing block assembly blocks the opening of the semi-enclosed structure, and finally forms a space matching the outer shape of the bus.

[0008] Preferably in the present technical solution, the first sealing block assembly is fixedly installed inside the large box, the second sealing block assembly and the third sealing block assembly are slidably installed inside the large box, and at the same time, the second sealing block assembly is arranged opposite to the fourth sealing block assembly, and the third sealing block assembly is arranged opposite to the first sealing block assembly.

[0009] Preferably in the present technical solution, the second sealing rubber block assembly includes a second hard rubber, a second soft rubber arranged at the end of the second hard rubber, and a second connecting plate fixedly connected to the other end of the second hard rubber, and the second hard rubber is connected to the large box body by means of a guide groove and a guide rail; the driving device includes a second driving member, the second driving member is fixedly connected to the second connecting plate, and is transmission-connected to the second hard rubber for driving the second hard rubber to move; and / or the third sealing rubber block assembly includes a third hard rubber, a third soft rubber arranged at the end of the third hard rubber, and a third connecting plate fixedly connected to the other end of the third hard rubber, and the third hard rubber and The large boxes are connected by means of guide grooves and guide rails; the driving device includes a third driving member, which is fixedly connected to the third connecting plate and is transmission-connected to the third hard rubber, so as to drive the third hard rubber to move; and / or the fourth sealing rubber block assembly includes a fourth hard rubber, a fourth soft rubber arranged at the end of the fourth hard rubber, and a fourth connecting plate fixedly connected to the other end of the fourth hard rubber, and the fourth hard rubber and the small box are connected by means of guide grooves and guide rails; the driving device includes a fourth driving member, which is fixedly connected to the fourth connecting plate and is transmission-connected to the fourth hard rubber, so as to drive the fourth hard rubber to move.

[0010] Based on the above technical features, the utility model realizes the sealing of the bus by adopting a first sealing block fixed inside the large box, a second sealing block and a third sealing block slidably connected inside the large box, and a fourth sealing block slidably connected inside the small box. At the same time, the second sealing block and the third sealing block are connected to the inside of the large box by means of guide grooves and guide rails, and the fourth sealing block is connected to the inside of the small box by means of guide grooves and guide rails, thereby improving the guiding effect of the bus sealing device.

[0011] In the present technical solution, preferably, the second driving member, the third driving member and the fourth driving member all include a reducer output screw, a reducer, a reducer input shaft, a large sprocket, a chain, a small sprocket and a hydraulic motor, wherein one end of the reducer output screw is respectively fixed on the second connecting plate, the third connecting plate and the fourth connecting plate, the other end of the reducer output screw is connected to the reducer, the reducer is connected to the large sprocket through the reducer input shaft, the large sprocket is connected to the small sprocket through the chain, and the small sprocket is connected to the hydraulic motor, and the hydraulic motor can be used to hydraulically drive the reducer output screw to extend in and out.

[0012] In the present technical solution, preferably, the second connecting plate, the third connecting plate and the fourth connecting plate are fixedly connected to the second hard rubber, the third hard rubber and the fourth hard rubber by screws, and the connecting plates are fixedly connected to the output screw of the reducer by welding.

[0013] In the present technical solution, preferably, the driving device further comprises a hand wheel, the hand wheel is connected to the reducer input shaft, and rotating the hand wheel can drive the reducer output screw to extend in and out.

[0014] Preferably in the present technical solution, the driving device also includes a cover plate and a motor mounting seat, wherein the cover plate is respectively arranged on the large door leaf and the small door leaf, the cover plate is provided with a hole through which the reducer input shaft passes, and the cover plate is used to constrain the axial movement of the reducer input shaft; the motor mounting seat is respectively arranged on the large door leaf and the small door leaf, and the motor mounting seat is used to fix and support the hydraulic motor.

[0015] Preferably in the present technical solution, the large box and the small box are both made by welding steel plates.

[0016] In the present technical solution, preferably, the sealing rubber block further includes an intermediate sealing rubber block, the intermediate sealing rubber block is arranged inside the bus bar, and the intermediate sealing rubber block matches the bus bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the busbar sealing device in the embodiment of the utility model being assembled on the large door leaf and the small door leaf;

[0018] Figure 2 This is a schematic diagram of the structure of the sealing rubber block in the embodiment of the utility model when it is in a disassembled state;

[0019] Figure 3 This is a front view structural diagram of a small box in an embodiment of the utility model;

[0020] Figure 4 This is a side structural schematic diagram of a small box in an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the top view of the small box in the embodiment of the utility model;

[0022] Figure 6 This is a front view structural diagram of a large box in an embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the side structure of the large box in the embodiment of the utility model;

[0024] Figure 8This is a schematic diagram of the top view of the large box in the embodiment of the utility model;

[0025] Fig. 9 It is a schematic diagram of the structure of the driving device in the embodiment of the utility model.

[0026] In the figure: 1, large door leaf; 2, small door leaf; 3, large box; 31, large box body; 32, large box guide rail; 4, small box; 41, small box body; 42, small box guide rail; 5, large door leaf sealing rubber block assembly; 51, first sealing rubber block assembly; 52, second sealing rubber block assembly; 52A, second soft rubber; 52B, second hard rubber; 52C, second connecting plate; 52D, second guide groove; 53, third sealing rubber block assembly; 53A, third soft rubber; 53B, third hard rubber; 5 3C, third connecting plate; 6, small door leaf sealing rubber block assembly; 61, fourth sealing rubber block assembly; 61A, fourth soft rubber; 61B, fourth hard rubber; 61C, fourth connecting plate; 61D, fourth guide groove; 7, middle sealing rubber block; 8, driving device; 81, reducer output screw; 82, reducer; 83, reducer input shaft; 84, large sprocket; 85, chain; 86, small sprocket; 87, hydraulic motor; 88, hand wheel; 89, cover plate; 810, motor mounting seat; 9, bus bar. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0030] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0031] Before understanding the present invention, it should be clear that a bus 9 for supplying power to the train is generally provided on the tunnel flood prevention door. In the embodiment of the utility model, when the large door leaf 1 and the small door leaf 2 are both closed, a bus hole will be formed between the large door leaf 1 and the small door leaf 2, and the bus 9 can pass through the bus hole. Therefore, there is no need to disconnect the bus 9 when opening the large door leaf 1 and the small door leaf 2, thereby shortening the opening and closing time of the tunnel flood prevention door.

[0032] like Figures 1 to 9 As shown, the utility model provides a technical solution: a busbar sealing device for a tunnel flood prevention door. In an embodiment of the utility model, the tunnel flood prevention door includes a large door leaf 1 and a small door leaf 2. The busbar sealing device is used to seal the busbar 9 when the large door leaf 1 and the small door leaf 2 are closed. The busbar sealing device includes a box body, a sealing rubber block and a driving device 8.

[0033] like Figure 1 , Figures 3 to 8 As shown, the box body is divided into a large box body 3 and a small box body 4. The large box body 3 is fixedly mounted on the fan surface of the large door leaf 1, and the small box body 4 is fixedly mounted on the fan surface of the small door leaf 2. Specifically, in an embodiment of the utility model, the large box body 3 is welded on the fan surface of the large door leaf 1, and the small box body 4 is welded on the fan surface of the small door leaf 2. The large box body 3 includes a large box body 31 made by welding steel plates and a large box body guide rail 32 welded inside the large box body 31. The small box body 4 includes a small box body 41 made by welding steel plates and a small box body guide rail 42 welded inside the small box body 41.

[0034] like Figure 1 and Figure 2 As shown, the sealing block includes a small door leaf sealing block assembly 6 and a large door leaf sealing block assembly 5. The small door leaf sealing block assembly 6 is arranged inside the small box 4, and the large door leaf sealing block assembly 5 is arranged inside the large box 3. The ends of the small door leaf sealing block assembly 6 and the large door leaf sealing block assembly 5 are respectively provided with soft rubbers, and when the small door leaf sealing block assembly 6 and the large door leaf sealing block assembly 5 are spliced, the soft rubbers are combined with each other to form a space matching the outer shape of the bus 9. Specifically, each soft rubber is made according to the shape of the bus 9, so that the structure after the soft rubbers are combined is sealed and matched with the outer surface of the bus 9.

[0035] Furthermore, if Figure 2As shown, the large door leaf sealing rubber block assembly 5 includes a first sealing rubber block assembly 51, a second sealing rubber block assembly 52 and a third sealing rubber block assembly 53, and the small door leaf sealing rubber block assembly 6 includes a fourth sealing rubber block assembly 61, wherein: the first sealing rubber block assembly 51, the second sealing rubber block assembly 52 and the third sealing rubber block assembly 53 are installed in the large box body 3, and have a combined state and a disassembled state. When in the combined state, the first sealing rubber block assembly 51, the second sealing rubber block assembly 52 and the third sealing rubber block assembly 53 cooperate to form a semi-enclosed structure opening toward one side of the small door leaf 2, and when in the disassembled state, the first sealing rubber block assembly 51, the second sealing rubber block assembly 52 and the third sealing rubber block assembly 53 cooperate to form a semi-enclosed structure opening toward one side of the small door leaf 2. The sealing block assembly 52 and the third sealing block assembly 53 are far away from each other; the fourth sealing block assembly 61 is movably installed in the small box 4, and also has a combined state and a separated state. When the first sealing block assembly 51, the second sealing block assembly 52 and the third sealing block assembly 53 are in the combined state, the fourth sealing block assembly 61 switches from the separated state to the combined state, and cooperates with the semi-enclosed structure formed by the first sealing block assembly 51, the second sealing block assembly 52 and the third sealing block assembly 53, so that the fourth sealing block assembly 61 blocks the opening of the semi-enclosed structure, and finally forms a space matching the outer shape of the bus 9.

[0036] Furthermore, if Figure 2 As shown, the first sealing block assembly 51 is fixedly installed inside the large box 3, and the second sealing block assembly 52 and the third sealing block assembly 53 are slidably installed inside the large box 3. At the same time, the second sealing block assembly 52 is arranged opposite to the fourth sealing block assembly 61, and the third sealing block assembly 53 is arranged opposite to the first sealing block assembly 51.

[0037] Furthermore, if Figure 2As shown, in the embodiment of the utility model, the second sealing rubber block assembly 52 includes a second hard rubber 52B, a second soft rubber 52A arranged at the end of the second hard rubber 52B, and a second connecting plate 52C fixedly connected to the other end of the second hard rubber 52B, wherein the second soft rubber 52A and the second hard rubber 52B are connected together by cold connection and hot connection, and the second hard rubber 52B and the large box 3 are matched and connected by guide grooves and guide rails. Specifically, a second guide groove 52D is provided on the surface of the second hard rubber 52B, and the second sealing rubber block assembly 52 is slidably connected to the large box guide rail 32 of the large box 3 through the second guide groove 52D; the third sealing rubber block assembly 53 includes a third hard rubber 53B, a third soft rubber 53A arranged at the end of the third hard rubber 53B, and a third connecting plate 53C fixedly connected to the other end of the third hard rubber 53B, wherein the third soft rubber 53A is connected to the third hard rubber 53B by cold connection and hot connection; the fourth sealing rubber block assembly 61 includes a fourth hard rubber 61B, a fourth soft rubber 61A arranged at the end of the fourth hard rubber 61B, and a fourth connecting plate 61C fixedly connected to the other end of the fourth hard rubber 61B, and the fourth soft rubber 61A is connected to the fourth hard rubber 61B by cold connection and hot connection, and the fourth hard rubber 61B is connected to the small box 4 by means of guide grooves and guide rails. Specifically, the surface of the fourth hard rubber 61B is provided with a fourth guide groove 61D, and the fourth sealing rubber block assembly 61 is slidably connected to the small box guide rail 42 of the small box 4 through the second fourth guide groove 61D; at the same time, in other embodiments, in order to improve the guiding and sealing effect of the bus sealing device, the third hard rubber 53B and the large box 3 can also be connected by means of guide grooves and guide rails.

[0038] like Figure 1 and Figure 2 As shown, the driving device 8 includes a second driving member for driving the second sealing rubber block assembly 52, a third driving member for driving the third sealing rubber block assembly 53 and a fourth driving member for driving the fourth sealing rubber block assembly 61, wherein the second driving member is fixedly connected to the second connecting plate 52C and is transmission-connected to the second hard rubber 52B, and is used to drive the second hard rubber 52B to move, the third driving member is fixedly connected to the third connecting plate 53C and is transmission-connected to the third hard rubber 53B, and is used to drive the third hard rubber 53B to move, and the fourth driving member is fixedly connected to the fourth connecting plate 61C and is transmission-connected to the fourth hard rubber 61B, and is used to drive the fourth hard rubber 61B to move.

[0039] like Figure 1 and Fig. 9As shown, the second driving member, the third driving member and the fourth driving member all include a reducer output screw 81, a reducer 82, a reducer input shaft 83, a large sprocket 84, a chain 85, a small sprocket 86 and a hydraulic motor 87, wherein one end of the reducer output screw 81 is respectively fixed to the second connecting plate 52C, the third connecting plate 53C and the fourth connecting plate 61C, the other end of the reducer output screw 81 is connected to the reducer 82, the reducer 82 is connected to the large sprocket 84 through the reducer input shaft 83, and the large sprocket 84 is connected to a small sprocket 86 through a chain 85, and the small sprocket 86 is connected to a hydraulic motor 87. The hydraulic motor 87 can be used to hydraulically drive the reducer output screw 81 to extend in and out. Specifically, the hydraulic motor 87 drives the small sprocket 86, and transmits the driving force to the large sprocket 84 through the chain 85, driving the large sprocket 84 to rotate. The large sprocket 84 is connected to the reducer input shaft 83, and through the reversing of the reducer 82, it drives the reducer output screw 81 to extend in and out, thereby realizing the combination and separation of the sealing rubber block.

[0040] Furthermore, the driving device 8 also includes a handwheel 88, a cover plate 89 and a motor mounting seat 810. The handwheel 88 is connected to the reducer input shaft 83. Turning the handwheel 88 can manually drive the reducer output screw 81 to extend in and out. The cover plate 89 is respectively arranged on the large door leaf 1 and the small door leaf 2. The cover plate 89 is provided with a hole through which the reducer input shaft 83 passes. The cover plate 89 is used to constrain the axial movement of the reducer input shaft 83. The motor mounting seat 810 is respectively arranged on the large door leaf 1 and the small door leaf 2. The motor mounting seat 810 is used to fix and support the hydraulic motor 87.

[0041] like Figure 1 As shown, the sealing rubber block also includes a middle sealing rubber block 7 , which is arranged inside the bus bar 9 , and the middle sealing rubber block 7 matches the bus bar 9 .

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A busbar sealing device for a tunnel flood prevention door, the tunnel flood prevention door comprising a large door leaf (1) and a small door leaf (2), the busbar sealing device being used for sealing a busbar (9) when the large door leaf (1) and the small door leaf (2) are closed, characterized in that: The busbar sealing device comprises a box body, a sealing rubber block and a driving device (8), wherein: The box body is divided into a large box body (3) and a small box body (4), the large box body (3) is fixedly mounted on the fan surface of the large door leaf (1), and the small box body (4) is fixedly mounted on the fan surface of the small door leaf (2); The sealing rubber block comprises a small door leaf sealing rubber block assembly (6) and a large door leaf sealing rubber block assembly (5), wherein the small door leaf sealing rubber block assembly (6) is arranged inside the small box body (4), and the large door leaf sealing rubber block assembly (5) is arranged inside the large box body (3), and the ends of the small door leaf sealing rubber block assembly (6) and the large door leaf sealing rubber block assembly (5) are respectively provided with soft rubber, and when the small door leaf sealing rubber block assembly (6) and the large door leaf sealing rubber block assembly (5) are spliced, the soft rubbers are combined with each other to form a space matching the outer shape of the bus (9), so that the structure after the soft rubbers are combined is sealed with the outer surface of the bus (9); The driving device (8) cooperates with the sealing rubber block to respectively drive the small door leaf sealing rubber block assembly (6) and the large door leaf sealing rubber block assembly (5) to operate when the large door leaf (1) and the small door leaf (2) are both closed, so as to realize the combination and separation of each soft rubber.

2. The busbar sealing device according to claim 1, characterized in that: The large door leaf sealing rubber block assembly (5) comprises a first sealing rubber block assembly (51), a second sealing rubber block assembly (52) and a third sealing rubber block assembly (53), and the small door leaf sealing rubber block assembly (6) comprises a fourth sealing rubber block assembly (61), wherein: The first sealing rubber block assembly (51), the second sealing rubber block assembly (52) and the third sealing rubber block assembly (53) are installed in the large box (3) and have a combined state and a disassembled state. When in the combined state, the first sealing rubber block assembly (51), the second sealing rubber block assembly (52) and the third sealing rubber block assembly (53) cooperate to form a semi-enclosed structure that is open toward one side of the small door leaf (2). When in the disassembled state, the first sealing rubber block assembly (51), the second sealing rubber block assembly (52) and the third sealing rubber block assembly (53) are away from each other. The fourth sealing block assembly (61) is movably installed in the small box (4) and also has a combined state and a separated state. When the first sealing block assembly (51), the second sealing block assembly (52) and the third sealing block assembly (53) are in the combined state, the fourth sealing block assembly (61) switches from the separated state to the combined state and cooperates with the semi-enclosed structure formed by the first sealing block assembly (51), the second sealing block assembly (52) and the third sealing block assembly (53), so that the fourth sealing block assembly (61) blocks the opening of the semi-enclosed structure, and finally forms a space matching the outer shape of the busbar (9).

3. The busbar sealing device according to claim 2, characterized in that: The first sealing rubber block assembly (51) is fixedly installed inside the large box (3), and the second sealing rubber block assembly (52) and the third sealing rubber block assembly (53) are slidably installed inside the large box (3). At the same time, the second sealing rubber block assembly (52) is arranged opposite to the fourth sealing rubber block assembly (61), and the third sealing rubber block assembly (53) is arranged opposite to the first sealing rubber block assembly (51).

4. The busbar sealing device according to claim 3, characterized in that: The second sealing rubber block assembly (52) comprises a second hard rubber (52B), a second soft rubber (52A) arranged at the end of the second hard rubber (52B), and a second connecting plate (52C) ​​fixedly connected to the other end of the second hard rubber (52B), and the second hard rubber (52B) is connected to the large box (3) by means of a guide groove and a guide rail; The driving device (8) comprises a second driving member, which is fixedly connected to the second connecting plate (52C) ​​and is transmission-connected to the second hard rubber (52B) for driving the second hard rubber (52B) to move; and / or, The third sealing rubber block assembly (53) comprises a third hard rubber (53B), a third soft rubber (53A) arranged at the end of the third hard rubber (53B), and a third connecting plate (53C) fixedly connected to the other end of the third hard rubber (53B), and the third hard rubber (53B) is connected to the large box (3) by means of a guide groove and a guide rail; The driving device (8) comprises a third driving member, which is fixedly connected to the third connecting plate (53C) and is in transmission connection with the third hard rubber (53B) and is used to drive the third hard rubber (53B) to move; and / or, The fourth sealing rubber block assembly (61) comprises a fourth hard rubber (61B), a fourth soft rubber (61A) arranged at the end of the fourth hard rubber (61B), and a fourth connecting plate (61C) fixedly connected to the other end of the fourth hard rubber (61B), and the fourth hard rubber (61B) is connected to the small box (4) by means of a guide groove and a guide rail; The driving device (8) comprises a fourth driving member, which is fixedly connected to the fourth connecting plate (61C) and is transmission-connected to the fourth hard rubber (61B) for driving the fourth hard rubber (61B) to move.

5. The busbar sealing device according to claim 4, characterized in that: The second driving member, the third driving member and the fourth driving member each include a reducer output screw (81), a reducer (82), a reducer input shaft (83), a large sprocket (84), a chain (85), a small sprocket (86) and a hydraulic motor (87), wherein: One end of the reducer output screw (81) is respectively fixed on the second connecting plate (52C), the third connecting plate (53C) and the fourth connecting plate (61C), and the other end of the reducer output screw (81) is connected to the reducer (82). The reducer (82) is connected to the large sprocket (84) through the reducer input shaft (83), and the large sprocket (84) is connected to the small sprocket (86) through the chain (85). The small sprocket (86) is connected to the hydraulic motor (87), and the hydraulic motor (87) can be used to hydraulically drive the reducer output screw (81) to extend in and out.

6. The busbar sealing device according to claim 5, characterized in that: The second connecting plate (52C), the third connecting plate (53C) and the fourth connecting plate (61C) are fixedly connected to the second hard rubber (52B), the third hard rubber (53B) and the fourth hard rubber (61B) by means of screws, and the connecting plates are fixedly connected to the output screw rod (81) of the reducer by means of welding.

7. The busbar sealing device according to claim 5, characterized in that: The driving device (8) further comprises a hand wheel (88) connected to the reducer input shaft, and the hand wheel (88) can be rotated to drive the reducer output screw (81) to extend in and out.

8. The busbar sealing device according to claim 7, characterized in that: The driving device (8) further comprises a cover plate (89) and a motor mounting seat (810), wherein: The cover plate (89) is respectively arranged on the large door leaf (1) and the small door leaf (2); a hole through which the reducer input shaft (83) passes is arranged on the cover plate (89); the cover plate (89) is used to restrict the axial movement of the reducer input shaft (83); The motor mounting seat (810) is respectively arranged on the large door leaf (1) and the small door leaf (2), and the motor mounting seat (810) is used to fix and support the hydraulic motor (87).

9. The busbar sealing device according to claim 4, characterized in that: The large box (3) and the small box (4) are both made by welding steel plates.

10. The busbar sealing device according to claim 1, characterized in that: The sealing rubber block also includes an intermediate sealing rubber block (7), wherein the intermediate sealing rubber block (7) is arranged inside the bus bar (9), and the intermediate sealing rubber block (7) matches the bus bar (9).

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