Double-chain lifting mechanism for fire-fighting water tank

Abstract

The double-chain lifting mechanism comprises a fixing frame and a lifting air cylinder located in the water tank, a water tank cover plate is arranged at the top of the water tank, positioning frames are arranged on the two sides of the top of the water tank cover plate, fixing pieces are connected to the positioning frames in a threaded mode, and one ends of the fixing pieces penetrate through the positioning frames to be in threaded connection with the water tank cover plate. Lifting air cylinders are arranged on the front side and the rear side of the fixing frame, double-chain lock connectors are arranged at the telescopic ends of the lifting air cylinders, lifting assemblies are arranged on the left side and the right side of the fixing frame and comprise the left lifting assembly and the right lifting assembly, limiting frames are arranged on the left side and the right side of the middle of the fixing frame, and each limiting frame is of a structure with an opening in one side. The lifting speed of the front side and the rear side of the water tank is controlled through chain transmission, the speeds of the two sides are kept consistent, the phenomenon of frequent inclination in linear bearing guiding movement is avoided, and due to the simple structure, the water tank lifting device is more economical and practical compared with other structures.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for fire fighting water tanks, in particular to a double-chain lifting mechanism for a fire fighting water tank. Background Art

[0002] When new energy battery packs are stored in an automated warehouse, due to the risk of fire, most of them are equipped with fire fighting water tanks; due to the requirements of automated production, the fire fighting water tanks generally use air cylinders with linear bearings or linear guide rails for guidance and drive. Because the size of the battery packs is very large and the length of the water tanks is relatively large, the linear bearings for guidance often tilt during movement; and the installation of linear bearings for guidance is troublesome and costly. Content of the Utility Model

[0003] The purpose of the utility model is to provide a double-chain lifting mechanism for a fire fighting water tank to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A double-chain lifting mechanism for a fire fighting water tank, including a fixed frame and a lifting air cylinder located inside the water tank. A water tank cover plate is arranged on the top of the water tank. Positioning frames are arranged on both sides of the top of the water tank cover plate. Fixing pieces are screwed on the positioning frames. One end of the fixing piece passes through the positioning frame and is threadedly connected between the water tank cover plate. Lifting air cylinders are arranged on the front and back sides of the fixed frame. A double-chain lock joint is arranged at the telescopic end of the lifting air cylinder. Lifting components are arranged on the left and right sides of the fixed frame. The lifting components include a left lifting component and a right lifting component. Limiting frames are arranged on the left and right sides of the middle of the fixed frame. The limiting frames are of a structure with one side open.

[0005] Preferably, the right lifting component includes a first mounting frame and a second mounting frame. Both the first mounting frame and the second mounting frame are in a "C" shape and are fixedly installed on the right side of the fixed frame.

[0006] Preferably, a right return chain wheel is connected to the first mounting frame through a rotating shaft, and a right reversing chain wheel is connected to the second mounting frame through a rotating shaft. The right return chain wheel and the right reversing chain wheel are on the same straight line.

[0007] Preferably, a right lifting chain is arranged on the right return chain wheel and the right reversing chain wheel. The right lifting chain is meshed and driven with the right return chain wheel and the right reversing chain wheel respectively.

[0008] Preferably, one end of the right lifting chain passes through the limiting frame and is fixedly connected to the double-chain lock joint. The right lifting chain and the fixing piece on the right side are fixedly connected through a balance adjusting screw.

[0009] Preferably, the left lifting component includes a third mounting frame and a fourth mounting frame. Both the third mounting frame and the fourth mounting frame are in a "C" shape and are fixedly installed on the left side of the fixed frame.

[0010] Preferably, the third mounting frame is connected to a left reversing sprocket via a rotating shaft, and the fourth mounting frame is connected to a left return sprocket via a rotating shaft, and the left reversing sprocket and the left return sprocket are located on the same straight line.

[0011] Preferably, a left lifting chain is provided on the left reversing sprocket and the left return sprocket wheel, and the left lifting chain is respectively meshed and transmitted with the left reversing sprocket and the left return sprocket wheel.

[0012] Preferably, one end of the left lifting chain passes through the limiting frame and is fixedly connected to the double chain lock joint, and the left lifting chain is fixedly connected to the left fixing member via a balancing adjustment screw.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model controls the lifting speed of the front and rear sides of the water tank through chain transmission, keeps the speed of the two sides consistent, avoids the phenomenon of frequent tilting during the movement of the linear bearing guide, and is more economical and practical than other structures due to its simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the double-chain lifting mechanism of the fire water tank of the utility model.

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the structure enlarged at point A in the middle.

[0017] Figure 3 It is an exploded schematic diagram of the connection between the right lifting chain and the fixing member of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the limiting frame of the utility model.

[0019] In the figure: lifting cylinder 1; double chain lock joint 2; water tank cover 3; positioning frame 31; fixing piece 32; balance adjustment screw 4; right lifting chain 5; right return sprocket 6; first mounting frame 61; right reversing sprocket 7; second mounting frame 71; left reversing sprocket 8; third mounting frame 81; left return sprocket 9; fourth mounting frame 91; left lifting chain 10; fixing frame 11; limiting frame 12. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a double-chain lifting mechanism for a fire fighting water tank, including a fixed frame 11 and a lifting cylinder 1 located inside the water tank. A water tank cover plate 3 is fixedly installed on the top of the water tank. Positioning frames 31 are attached to both sides of the top of the water tank cover plate 3. Fixing members 32 are screwed on the positioning frames 31. One end of the fixing member 32 passes through the positioning frame 31 and is threadedly connected to the water tank cover plate 3.

[0022] Lifting cylinders 1 are fixedly installed on both the front and rear sides of the fixed frame 11. The telescopic ends of the lifting cylinders 1 are fixedly connected to double-chain lock joints 2. Lifting components are arranged on both the left and right sides of the fixed frame 11. The lifting components include a left lifting component and a right lifting component.

[0023] The right lifting component includes a first mounting frame 61 and a second mounting frame 71. Both the first mounting frame 61 and the second mounting frame 71 are in a "C" shape and are fixedly installed on the right side of the fixed frame 11. A right return chain wheel 6 is connected to the first mounting frame 61 through a rotating shaft. The setting of the first mounting frame 61 plays a role in positioning and guiding the rotation of the right return chain wheel 6. A right reversing sprocket 7 is connected to the second mounting frame 71 through a rotating shaft. The setting of the second mounting frame 71 plays a role in positioning and guiding the right reversing sprocket 7. The right return chain wheel 6 and the right reversing sprocket 7 are on the same straight line.

[0024] A right lifting chain 5 is arranged on the right return chain wheel 6 and the right reversing sprocket 7. The right lifting chain 5 is meshed and driven with the right return chain wheel 6 and the right reversing sprocket 7 respectively. Limiting frames 12 are fixedly installed on both the left and right sides of the middle part of the fixed frame 11. The limiting frames 12 are in a structure with one side open. One end of the right lifting chain 5 passes through the limiting frame 12 and is fixedly connected to the double-chain lock joint 2.

[0025] The right lifting chain 5 is fixedly connected to the fixing member 32 on the right side through a balance adjusting screw 4. A threaded hole is opened on the fixing member 32. One end of the balance adjusting screw 4 passes through the end of the right lifting chain 5 and is threadedly connected to the threaded hole.

[0026] The left lifting assembly includes a third mounting bracket 81 and a fourth mounting bracket 91. Both the third mounting bracket 81 and the fourth mounting bracket 91 are in a "C" shape and are fixedly mounted on the left side of the fixed bracket 11. A left reversing sprocket 8 is connected to the third mounting bracket 81 through a rotating shaft. The setting of the third mounting bracket 81 plays a role in positioning and guiding the rotation of the left reversing sprocket 8. A left return sprocket 9 is connected to the fourth mounting bracket 91 through a rotating shaft. The setting of the fourth mounting bracket 91 plays a role in positioning and guiding the rotation of the left return sprocket 9. The left reversing sprocket 8 and the left return sprocket 9 are on the same straight line.

[0027] A left lifting chain 10 is arranged on the left reversing sprocket 8 and the left return sprocket 9. The left lifting chain 10 is in meshing transmission with the left reversing sprocket 8 and the left return sprocket 9 respectively. One end of the left lifting chain 10 passes through the limiting frame 12 and is fixedly connected to the double-chain lock joint 2. The left lifting chain 10 is fixedly connected to the left fixing member 32 through a balance adjusting screw 4. One end of the balance adjusting screw 4 passes through the end of the left lifting chain 10 and is in threaded connection with the threaded hole.

[0028] During actual use, start the lifting cylinder 1 to control its telescopic end to move downward. The double-chain lock joint 2 is connected to the balance adjusting screw 4 through the right lifting chain 5 and the left lifting chain 10. Both the right return sprocket 6 and the right reversing sprocket 7 rotate, and both the left reversing sprocket 8 and the left return sprocket 9 rotate. The right lifting chain 5 and the left lifting chain 10 move downward along the limiting frame 12, thereby lifting the water tank cover 3. Due to the characteristics of chain transmission, the lifting speeds of the left and right sides of the water tank cover 3 are the same. In this way, the water tank cover 3 remains horizontal during lifting. The same set of structures are installed on the front side and the back side, and parallel movement of the water tank cover 3 during lifting can be achieved.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-chain lifting mechanism for a fire water tank, comprising a fixing frame (11) and a lifting cylinder (1) located inside the water tank, characterized in that: A water tank cover plate (3) is provided at the top of the water tank. Positioning frames (31) are provided on both sides of the top of the water tank cover plate (3). Fixing members (32) are screwed on the positioning frames (31). One end of the fixing member (32) passes through the positioning frame (31) and is threadedly connected between the water tank cover plate (3). Lifting cylinders (1) are provided on the front and rear sides of the fixing frame (11). Double-chain lock joints (2) are provided at the telescopic ends of the lifting cylinders (1). Lifting components are provided on the left and right sides of the fixing frame (11). The lifting components include a left lifting component and a right lifting component. Limiting frames (12) are provided on the left and right sides of the middle of the fixing frame (11). The limiting frames (12) are of a structure with one side open.

2. A double-chain lifting mechanism for a fire water tank according to claim 1, characterized in that: The right lifting component includes a first mounting frame (61) and a second mounting frame (71). Both the first mounting frame (61) and the second mounting frame (71) are of a "C" - shaped structure and are fixedly mounted on the right side of the fixing frame (11).

3. A double-chain lifting mechanism for a fire water tank according to claim 2, characterized in that: A right return chain wheel (6) is connected to the first mounting frame (61) through a rotating shaft. A right reversing sprocket (7) is connected to the second mounting frame (71) through a rotating shaft. The right return chain wheel (6) and the right reversing sprocket (7) are on the same straight line.

4. A double-chain lifting mechanism for a fire water tank according to claim 3, characterized in that: A right lifting chain (5) is provided on the right return chain wheel (6) and the right reversing sprocket (7). The right lifting chain (5) is meshed and driven with the right return chain wheel (6) and the right reversing sprocket (7) respectively.

5. A double-chain lifting mechanism for a fire water tank according to claim 4, characterized in that: One end of the right lifting chain (5) passes through the limiting frame (12) and is fixedly connected to the double-chain lock joint (2). The right lifting chain (5) is fixedly connected to the fixing member (32) on the right side through a balance adjustment screw (4).

6. A double-chain lifting mechanism for a fire water tank according to claim 1, characterized in that: The left lifting component includes a third mounting frame (81) and a fourth mounting frame (91). Both the third mounting frame (81) and the fourth mounting frame (91) are of a "C" - shaped structure and are fixedly mounted on the left side of the fixing frame (11).

7. A double-chain lifting mechanism for a fire water tank according to claim 6, characterized in that: A left reversing sprocket (8) is connected to the third mounting frame (81) through a rotating shaft. A left return chain wheel (9) is connected to the fourth mounting frame (91) through a rotating shaft. The left reversing sprocket (8) and the left return chain wheel (9) are on the same straight line.

8. A double-chain lifting mechanism for a fire water tank according to claim 7, characterized in that: A left lifting chain (10) is provided on the left reversing sprocket (8) and the left return chain wheel (9). The left lifting chain (10) is meshed and driven with the left reversing sprocket (8) and the left return chain wheel (9) respectively.

9. A double-chain lifting mechanism for a fire water tank according to claim 8, characterized in that: One end of the left lifting chain (10) passes through the limiting frame (12) and is fixedly connected to the double-chain lock joint (2). The left lifting chain (10) is fixedly connected to the fixing member (32) on the left side through a balance adjustment screw (4).

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