Opening and closing device for liquid sealing hole cover

Abstract

The utility model discloses a liquid seal hole cover opening and closing device which comprises a pool body hole edge, a base, a cover plate and a cover plate driving assembly, and the base is connected with the pool body hole edge in a sleeved mode. The cover plate is arranged above the base; the cover plate driving assembly is connected with the base and the cover plate, the cover plate driving assembly comprises two guide plates, a driving shaft, a connecting rod, two rocking plates, two connecting plates and a bracket, and the guide plates are symmetrically arranged on the inner side wall of the hole edge of the pool body; the driving shaft is connected with the guide plate; the connecting rods are connected with guide plates; the bracket is connected with the cover plate. The liquid sealing hole cover opening and closing device can effectively prevent poisonous, harmful and corrosive gas from overflowing, the problems of body health damage, life discomfort and the like caused by environmental pollution are solved, and the problems of high labor intensity and working safety risks are solved.

Description

Technical Field

[0001] The utility model relates to an opening and closing device for a liquid-sealed hole cover, belonging to the technical field of water and liquid storage. Background Art

[0002] At present, the covers of inspection holes or observation holes of many pools or tanks at home and abroad need to be opened by pushing or pulling or moving, which is often accompanied by the evaporation and overflow of strong oxidizing or corrosive gases, resulting in a greater risk of dangerous gas overflow and certain environmental pollution problems. Moreover, during the opening process, there are also problems such as the difficulty of manually opening large covers and dangerous operations. At the same time, the seals of covers such as inspection holes or observation holes are mainly sealed with oxidation-resistant or corrosion-resistant rubber, but the service life of rubber in this environment is usually short, and it usually needs to be replaced every few months to one or two years, which wastes manpower and material resources and is neither economical nor environmentally friendly. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a liquid-sealed hole cover opening and closing device.

[0004] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0005] A liquid-sealed hole cover opening and closing device comprises a pool body hole edge, a base, a cover plate, and a cover plate driving assembly; the base is sleeved with the pool body hole edge; the cover plate is arranged above the base; the cover plate driving assembly is connected with the base and the cover plate,

[0006] Wherein, the cover plate driving assembly includes two guide plates, a driving shaft, a connecting rod, two rocking plates, two connecting plates, and a bracket;

[0007] The two guide plates are symmetrically arranged on the inner side wall of the pool body hole; the driving shaft is connected to the guide plates; the connecting rod is connected to the guide plates; and the bracket is connected to the cover plate.

[0008] Preferably, a sealed water tank is enclosed at the top of the inner side wall of the base.

[0009] Preferably, the cover plate includes an inner cover and an outer cover;

[0010] The inner cover is in a pyramid shape, and the inner wall is inclined relative to the sealed water tank;

[0011] A sealing plate is provided at the edge of the lower surface of the inner cover, and the sealing plate conforms to the shape of the water tank;

[0012] The outer cover is horizontally welded to the edge of the inner cover.

[0013] Preferably, one end of the rocking plate is fixedly connected to the driving shaft, and the other end is movably connected to the connecting plate.

[0014] Preferably, one end of the connecting plate is connected to the rocking plate, and the other end is connected to the bracket;

[0015] Preferably, the bracket is Z-shaped and includes a support plate, a connecting plate, and a fixing plate;

[0016] One end of the connecting plate is connected to the supporting plate, and the other end is connected to the fixing plate; the supporting plate is parallel to the fixing plate, and extends in opposite directions.

[0017] Preferably, the connecting rod is fixedly connected to the other end of the connecting plate, and is movably connected to the fixing plate.

[0018] Preferably, the guide plate is provided with an arc-shaped slide groove and a fixed plate groove; the vertex of the fixed plate groove serves as the center of the arc-shaped slide groove.

[0019] Preferably, the radius of the arc-shaped sliding groove is equal to half the length of the fixed plate groove.

[0020] Preferably, the rocking plate and the connecting plate are connected by a pin and the pin is located in the fixed plate groove; the connection point between the fixed plate and the connecting plate is located at the vertex of the fixed plate groove.

[0021] Compared with the prior art, the liquid-sealed hole cover opening and closing device effectively avoids the risk of dangerous gas spillage by setting the inner cover of the cover plate to an inclined shape, setting a sealing plate on the edge of the inner cover, and setting a sealing water tank on the inner side wall of the base. The sealing plate and the sealing water tank fit together up and down, thereby reducing the daily manual water or liquid maintenance and sealing workload. At the same time, the connecting rod transmission device is used, which is simple to operate when opening and closing the liquid-sealed hole cover, effectively reducing the labor intensity of the operator in opening and closing the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the side structure of the base of the liquid-sealed hole cover opening and closing device provided by the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the liquid-sealed hole cover opening and closing device provided by the utility model in an open state;

[0024] Figure 3 It is a schematic diagram of the overall structure of the cover plate drive assembly;

[0025] Figure 4 It is a schematic diagram of the side structure of the cover plate drive assembly;

[0026] Figure 5 It is a schematic diagram of the overall structure of the cover in the closed state. DETAILED DESCRIPTION

[0027] The technical content of the present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 3 As shown, the embodiment of the utility model discloses a liquid-sealed hole cover opening and closing device, comprising a base 2, a cover plate 3, and a cover plate driving assembly 4 installed on the pool body hole edge 1. The base 2 is a frame structure, the size of which is adapted to the shape and size of the pool body hole edge 1, and is sleeved above the pool body hole edge 1. The top of the inner side wall of the base 2 is enclosed with a sealed water tank 11.

[0029] like Figure 2 and Figure 4 As shown, the cover plate 3 is made of hydrophilic or lyophilic material, including an inner cover and an outer cover. The inner cover is arranged in the middle of the cover plate 3, above the base 2, and its size is adapted to the size of the base 2. It adopts a pyramid-shaped design with a high middle and low sides, so that the inner side wall of the cover body is inclined, which can effectively prevent the liquid from being retained on the inner surface of the cover plate 3, and facilitate the collection of the liquid on the inner wall in the sealed water tank 11. The outer cover is horizontally welded to the edge of the inner cover. When the cover plate 3 is in a closed state, the outer cover is located on the outside of the base 2, and the liquid flowing down from the outer surface of the inner cover flows along the outer surface of the outer cover, and the phenomenon of external liquid flowing into the hole edge 1 of the pool body will not occur. At the edge of the lower surface of the inner cover, a sealing plate 12 is also welded to the edge of the lower surface of the inner cover, which is vertically connected to the outer cover. The sealing plate 12 is conformable to the sealed water tank 11 up and down. When the cover plate 3 is in a closed state, the sealing plate 12 is located in the water tank 11 , so that the liquid on the inner wall of the cover plate 3 can flow into the water tank 11 along the inner wall of the sealing plate 12 .

[0030] In one embodiment of the present invention, the cover plate driving assembly 4 includes a driving device 41, two guide plates 42, a driving shaft 44, a connecting rod 46, two rocking plates 47, two connecting plates 48, and a bracket 49. The driving device 41 is installed on the outer side wall of one side of the pool body hole 1 (such as Figure 2 As shown in the figure, the driving shaft 44 is rotated manually or with special equipment. Two guide plates 42 are symmetrically arranged on the inner side walls of the two pool body holes 1 corresponding to the driving device 41. The plate is symmetrically provided with shaft holes, arc-shaped slide grooves and fixed plate grooves. The arc-shaped slide groove is connected with the fixed plate groove. The driving shaft 44 passes through the relatively arranged shaft holes on the guide plates 42 and is connected to the driving device 41 installed on the outer side wall of the pool body hole 1.

[0031] The two ends of the connecting rod 46 are respectively embedded in the arc-shaped slots of the two guide plates 42, and can move in the arc-shaped slots (90 degrees) as the cover plate 3 is opened and closed. One end of the two rocking plates 47 is fixedly connected to the driving shaft 44, and the other end is movably connected to the connecting plate 48 through a pin shaft, that is, the rocking plates 47 and the connecting plates 48 can rotate around the pin shaft.

[0032] One end of the connecting plate 48 is movably connected to the rocking plate 47 via a pin shaft arranged in the fixed plate groove 421, and the other end is fixed to the connecting rod 46, that is, one end of the connecting plate 48 can rotate around the pin shaft, and the other end can drive the connecting rod 46 to slide in the arc-shaped sliding groove.

[0033] The two brackets 49 are Z-shaped one-piece rigid structures, symmetrically arranged on the lower surface of the cover plate 3, including a support plate 491, a connecting plate 492, and a fixed plate 493. Among them, the support plate 491 and the fixed plate 493 are vertically connected to the two ends of the connecting plate 492 (that is, the support plate 491 is parallel to the fixed plate 493), and the extension directions are opposite. One end of the support plate 491 is fixedly connected to the lower surface of the inner cover of the cover plate 3, and the connection point is located on the inner side of the sealing plate 12. The end of the fixed plate 493 connected to the connecting plate 492 is fixed to the top A of the fixed plate groove through the connection point 9 (that is, the connection point 9 between the fixed plate 493 and the connecting plate 492 is located at the vertex of the fixed plate groove). That is, the fixed plate 493 can rotate around the pin shaft, driving the bracket 49 to rotate, thereby driving the cover plate 3 to open or close. The other end of the fixed plate 493 is movably sleeved on the connecting rod 46, that is, the fixed plate 493 can rotate around the connecting rod 46.

[0034] It should be noted that half the length of the fixed plate groove 421 is the same as the radius of the arc-shaped slide groove (the arc-shaped slide groove is an arc with the top A of the fixed plate groove 421 as the center and the length of the fixed plate 493 as the radius), so that the fixed plate 493 of the bracket 49 can move up and down along the arc-shaped slide groove under the transmission of the connecting rod 46.

[0035] The cover plate drive assembly 4 is installed, and the drive shaft 44 is connected to the drive device 41. One end of the rocking plate 47 is fixedly welded to the drive shaft 44. One end of the connecting plate 48 is movably connected to the rocking plate 47. The connecting rod 46 is fixedly connected to the other end of the connecting plate 48 and movably connected to the fixed plate 493 of the bracket 10. The support plate 491 of the bracket 49 is fixedly connected to the cover plate 3.

[0036] Taking the direction shown in the figure as an example, when the driving device 41 is started, the driving shaft 44 rotates counterclockwise, driving the other end of the rocking plate 47 to move upward, so that the connecting plate 48 connected to the rocking plate 47 also moves upward. When one end of the connecting plate 48 moves upward in the fixed plate groove, the other end will also move upward in the arc-shaped slide groove. Therefore, one end of the fixed plate 493 of the bracket 49 connected to the connecting plate 48 also moves upward. When the fixed plate 493 rotates to a horizontal state, the support plate 491 and the fixed plate 493 are parallel to each other up and down, and at this time, the cover plate 3 is fully opened. Conversely, when the driving shaft 44 rotates clockwise, the rocking plate 47 moves downward, and one end of the connecting plate 48 connected to the rocking plate 47 also moves downward along the fixed plate groove with the rocking plate 47, and the other end drives the connecting rod 46 to move downward. One end of the fixed plate 493 of the bracket 49 connected to the connecting plate 48 also moves downward along the arc-shaped slide groove. When the fixing plate 493 reaches the bottom of the arc-shaped slide groove, the cover plate 3 is completely closed.

[0037] It should be noted that the terms "upper", "lower", "horizontal", etc. indicate directions or positional relationships 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, and 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.

[0038] In summary, the embodiment of the utility model provides a liquid-sealed hole cover opening and closing device, which effectively prevents the risk of toxic, harmful, corrosive and other gases from overflowing through the upper and lower fittings of the sealing plate and the sealing water tank by setting the inner cover of the cover plate into a pyramid shape, and setting a sealing plate at the bottom end of the edge of the inner cover, and effectively reduces the workload of daily manual water addition or liquid maintenance and sealing. At the same time, the connecting rod transmission device is used, which is simple to operate when opening and closing the liquid-sealed hole cover, and effectively reduces the labor intensity of the operator opening and closing the cover plate.

[0039] The above is a detailed description of the liquid-sealed hole cover opening and closing device provided by the utility model. For those skilled in the art, any obvious changes made to it without departing from the essence of the utility model will constitute an infringement of the patent right of the utility model and will bear corresponding legal responsibilities.

Claims

1. A liquid-sealed hole cover opening and closing device, characterized in that It includes a pool body hole edge, a base, a cover plate, and a cover plate driving assembly. The base is sleeved with the pool body hole edge; the cover plate is arranged above the base; the cover plate driving assembly is connected with the base and the cover plate. The cover plate driving assembly includes two guide plates, a driving shaft, a connecting rod, two rocking plates, two connecting plates, and a bracket. The two guide plates are symmetrically arranged on the inner side wall of the pool body hole; the driving shaft is connected to the guide plates; the connecting rod is connected to the guide plates; and the bracket is connected to the cover plate.

2. The liquid-sealed hole cover opening and closing device according to claim 1, characterized in that: The top end of the inner side wall of the base is surrounded by a sealed water tank.

3. The liquid-sealed hole cover opening and closing device according to claim 1, characterized in that: The cover plate comprises an inner cover and an outer cover; The inner cover is in a pyramid shape, and the inner wall is inclined relative to the sealed water tank; A sealing plate is provided at the edge of the lower surface of the inner cover, and the sealing plate conforms to the shape of the water tank; The outer cover is horizontally welded to the edge of the inner cover.

4. The liquid-sealed hole cover opening and closing device according to any one of claims 1 to 3, characterized in that: One end of the rocking plate is fixedly connected to the driving shaft, and the other end is movably connected to the connecting plate.

5. The liquid-sealed hole cover opening and closing device according to claim 4, characterized in that: One end of the connecting plate is connected to the rocking plate, and the other end is connected to the bracket.

6. The liquid-sealed hole cover opening and closing device according to claim 5, characterized in that: The bracket is Z-shaped and includes a support plate, a connecting plate, and a fixing plate; One end of the connecting plate is connected to the supporting plate, and the other end is connected to the fixing plate; The supporting plate is parallel to the fixing plate and extends in opposite directions.

7. The liquid-sealed hole cover opening and closing device according to claim 6, characterized in that: The connecting rod is fixedly connected to the other end of the connecting plate and is movably connected to the fixing plate.

8. The liquid-sealed hole cover opening and closing device according to claim 7, characterized in that: The guide plate is provided with an arc-shaped sliding groove and a fixed plate groove; The vertex of the fixed plate groove serves as the center of the arc-shaped sliding groove.

9. The liquid-sealed hole cover opening and closing device according to claim 8, characterized in that: The radius of the arc-shaped sliding groove is equal to half the length of the fixing plate groove.

10. The liquid-sealed hole cover opening and closing device according to claim 8, characterized in that: The rocking plate and the connecting plate are connected by a pin shaft and the pin shaft is located in the fixing plate groove; The connection point between the fixing plate and the connecting plate is located at the vertex of the fixing plate groove.

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