Elastic force rotation adjusting device for fire resisting shutter

Abstract

The utility model discloses a fire resisting shutter elasticity rotation adjusting device, and particularly relates to the technical field of fire resisting shutters, the fire resisting shutter elasticity rotation adjusting device comprises a machine base and a connecting cover arranged on one side of the machine base, a rotating shaft is movably installed on one side inside the connecting cover, the rotating shaft extends to the outside of the connecting cover, and the rotating shaft penetrates through the machine base. And a ratchet wheel is fixedly mounted on one side of the outer surface, located in the connecting cover, of the rotating shaft. According to the elastic force rotation adjusting device for the fire resisting shutter, in actual work, the rotating plate is rotated to drive the rotating shaft to rotate, the rotating shaft can drive the ratchet wheel to rotate, the pawl is matched with the first spring to enable the ratchet wheel to rotate in one direction, and when the rotating shaft rotates, the spring for elastic force rotation of the fire resisting shutter can be driven to rotate. The elastic force of the spring for elastic rotation of the fire resisting shutter can be adjusted by rotating the rotating plate, so that when the elastic force of the spring for elastic rotation of the fire resisting shutter is adjusted, only the rotating plate needs to be rotated, and limitation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof rolling curtains, in particular to an elastic force rotation regulating device for fireproof rolling curtains. Background Art

[0002] Fireproof rolling shutters are mainly used for walls that need fire separation, especially fire separation on fire walls and fire partitions when larger openings are required for production and use but fire doors cannot be installed. The elastic force of the spring that drives the fireproof rolling shutter to rotate elastically is adjusted by an adjusting device.

[0003] However, when the existing adjustment device adjusts the elastic force of the spring for the elastic rotation of the fireproof roller shutter, it needs to be operated by a dedicated tool, which leads to high limitations during adjustment. Therefore, in order to solve the above defects, the inventor proposes a fireproof roller shutter elastic rotation adjustment device. Utility Model Content

[0004] The main purpose of the utility model is to provide a fireproof roller shutter elastic force rotation adjustment device, which can effectively solve the problem in the prior art that when adjusting the elastic force of the spring for the elastic rotation of the fireproof roller shutter, it is necessary to use exclusive tools to operate, which leads to high limitations in adjustment.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fireproof rolling shutter elastic rotation adjustment device comprises a machine base and a connection cover arranged on one side of the machine base, an adjustment column is fixedly installed on one side of the outer surface of the connection cover, and the adjustment column extends to the inside of the connection cover;

[0007] A rotating shaft is movably mounted on one side of the inner part of the connecting cover, and the rotating shaft extends to the outside of the connecting cover, the rotating shaft passes through the machine base, and the rotating shaft is connected to a spring for elastic rotation of the fireproof rolling shutter, a ratchet is fixedly mounted on one side of the outer surface of the rotating shaft located inside the connecting cover, a pawl is movably mounted on one side of the inner part of the connecting cover, and the pawl is in contact with the ratchet, a fixed block is fixedly mounted on one side of the inner part of the connecting cover, and a first spring is fixedly mounted on the bottom surface of the fixed block, the first spring is fixedly connected to the pawl, and a rotating plate is provided at one end of the rotating shaft passing through the machine base;

[0008] Movable rods are movably connected to both sides of the outer surface of the adjusting column, and the two ends of the movable rods extending to the inside of the adjusting column are movably connected to the driving rods, and the two driving rods are movably connected to the driving block on the side away from the movable rods. The bottom surface of the driving block is fixedly installed with an adjusting rod, and the adjusting rod extends to the outside of the adjusting column, and the two ends of the movable rods located outside the adjusting column are fixedly installed with a second spring, and the two second springs are fixedly connected to the outer surface of the adjusting column.

[0009] Preferably, a mounting block is fixedly mounted on one side of the rotating plate, mounting holes are provided on both sides of the mounting block, a mounting groove is provided at one end of the rotating shaft close to the rotating plate, and connecting holes are provided on both sides of the outer surface of the mounting groove.

[0010] Preferably, the sizes of the two mounting holes are respectively the same as the sizes of the two connecting holes.

[0011] Preferably, a plurality of friction grooves are provided on the outer surface of the rotating plate.

[0012] Preferably, two protective covers are movably installed on one side of the machine base, and the rotating plate is located between the two protective covers, and two fixed plates are fixedly installed on one side of the machine base located on the protective covers, a threaded rod is movably installed on one side between the two fixed plates, and a sliding rod is fixedly installed on the other side between the two fixed plates, a separation block is threadedly connected to the outer surface of the threaded rod, and the separation block is movably connected to the sliding rod, separation rods are movably installed on both sides of the separation block, and the two separation rods are respectively movably connected to the two protective covers.

[0013] Preferably, a rotating handle is movably mounted on one side of the two fixed plates, and the rotating handle is fixedly connected to the threaded rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a fireproof roller shutter elastic force rotation regulating device. By setting a connecting cover, in actual work, the rotating plate can be rotated to drive the rotating shaft to rotate, and the rotating shaft can drive the ratchet to rotate, and the ratchet pawl cooperates with the first spring to make the ratchet rotate in one direction. When the rotating shaft rotates, the spring used for the elastic force rotation of the fireproof roller shutter can be driven to rotate, so the elastic force of the spring used for the elastic force rotation of the fireproof roller shutter can be adjusted. Therefore, when adjusting the elastic force of the spring used for the elastic force rotation of the fireproof roller shutter, it is only necessary to rotate the rotating plate to reduce limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection cover of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustment column of the utility model;

[0019] Figure 4 This is a schematic diagram of the rotating plate structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the base structure of the utility model.

[0021] In the figure: 1, machine base; 2, connecting cover; 3, adjusting column; 4, rotating plate; 201, ratchet; 202, rotating shaft; 203, pawl; 204, fixed block; 205, first spring; 301, movable rod; 302, second spring; 303, driving rod; 304, driving block; 305, adjusting rod; 401, mounting block; 402, mounting hole; 403, mounting groove; 404, connecting hole; 101, protective cover; 102, fixing plate; 103, threaded rod; 104, separation rod; 105, sliding rod; 106, separation block. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] The utility model discloses a fireproof rolling curtain elastic force rotation regulating device, such as Figure 1-5 As shown, it includes a base 1 and a connection cover 2 arranged on one side of the base 1 , an adjustment column 3 is fixedly installed on one side of the outer surface of the connection cover 2 , and the adjustment column 3 extends to the inside of the connection cover 2 .

[0024] A rotating shaft 202 is movably installed on one side of the inner part of the connecting cover 2, and the rotating shaft 202 extends to the outside of the connecting cover 2. The rotating shaft 202 passes through the machine base 1, and one end of the rotating shaft 202 extending to the outside of the connecting cover 2 is connected to a spring for elastic rotation of the fireproof roller shutter.

[0025] A ratchet 201 is fixedly installed on one side of the outer surface of the rotating shaft 202 located inside the connecting cover 2, a pawl 203 is movably installed on one side of the inner side of the connecting cover 2, and the pawl 203 contacts the ratchet 201, a fixed block 204 is fixedly installed on one side of the inner side of the connecting cover 2, and a first spring 205 is fixedly installed on the bottom surface of the fixed block 204, the first spring 205 is fixedly connected to the pawl 203, and a rotating plate 4 is provided at one end of the rotating shaft 202 passing through the base 1. When the user rotates the rotating plate 4, the rotating shaft 202 can be driven to rotate, so as to drive the spring used for the elastic force rotation of the fireproof roller shutter to rotate so as to adjust its elastic force. Through the first spring 205 and the pawl 203, the ratchet 201 can only rotate in one direction, thereby effectively preventing the spring used for the elastic force rotation of the fireproof roller shutter from rotating under the action of its own elastic force.

[0026] Both sides of the outer surface of the adjusting column 3 are movably connected with movable rods 301, and one end of the two movable rods 301 extending to the inside of the adjusting column 3 is movably connected with a driving rod 303, and the two driving rods 303 are movably connected with a driving block 304 on the side away from the movable rod 301. An adjusting rod 305 is fixedly installed on the bottom surface of the driving block 304, and the adjusting rod 305 extends to the outside of the adjusting column 3. When the user pushes the two movable rods 301 closer to each other, the two driving rods 303 can push the adjusting rod 305 to descend until it contacts one side of the pawl 203, so that the pawl 203 does not contact the ratchet 201 and squeezes the first spring 205, so that the ratchet 201 and the rotating shaft 202 can rotate in both directions.

[0027] The two movable rods 301 are fixedly installed with a second spring 302 at one end located outside the adjusting column 3, and the two second springs 302 are fixedly connected to the outer surface of the adjusting column 3. When the user releases the movable rod 301, the second spring 302 can push the movable rod 301 to reset, so that the adjusting rod 305 is reset.

[0028] A mounting block 401 is fixedly installed on one side of the rotating plate 4, and mounting holes 402 are provided on both sides of the mounting block 401. A mounting groove 403 is provided at one end of the rotating shaft 202 close to the rotating plate 4, and connecting holes 404 are provided on both sides of the outer surface of the mounting groove 403. When the mounting block 401 is inserted into the mounting groove 403, the connecting hole 404 will coincide with the mounting hole 402, and then the bolts will be inserted to connect the rotating plate 4 and the rotating shaft 202.

[0029] Two protective covers 101 are movably installed on one side of the machine base 1, and the rotating plate 4 is located between the two protective covers 101. Two fixed plates 102 are fixedly installed on one side of the machine base 1 located at the protective covers 101. A threaded rod 103 is movably installed on one side between the two fixed plates 102, and a sliding rod 105 is fixedly installed on the other side between the two fixed plates 102. A separation block 106 is threadedly connected to the outer surface of the threaded rod 103, and the separation block 106 is movably connected to the sliding rod 105. By rotating the threaded rod 103, the separation block 106 can be pushed to move. Separation rods 104 are movably installed on both sides of the separation block 106, and the two separation rods 104 are movably connected to the two protective covers 101 respectively. When the separation block 106 moves, the two separation rods 104 can push the two protective covers 101 to move in opposite directions, and then the two protective covers 101 can cover the rotating plate 4.

[0030] The working principle of the utility model is as follows: rotating the rotating plate 4 can drive the rotating shaft 202 to rotate, and the rotating shaft 202 can drive the ratchet 201 to rotate, and the pawl 203 cooperates with the first spring 205 to make the ratchet 201 rotate unidirectionally, and when the rotating shaft 202 rotates, it can drive the spring for elastic rotation of the fireproof roller shutter to rotate, so as to adjust the elastic force of the spring for elastic rotation of the fireproof roller shutter, and when the user pushes the two movable rods 301 to approach each other, the two driving rods 303 can push the adjusting rod 305 to descend until it contacts one side of the pawl 203, so that the pawl 203 does not contact the ratchet 201, and then the ratchet 201 and the rotating shaft 202 can rotate in both directions.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fireproof rolling shutter elastic force rotation adjustment device, comprising a base (1) and a connecting cover (2) arranged on one side of the base (1), characterized in that: An adjustment column (3) is fixedly mounted on one side of the outer surface of the connection cover (2), and the adjustment column (3) extends into the interior of the connection cover (2); A rotating shaft (202) is movably mounted on one side of the interior of the connection cover (2), and the rotating shaft (202) extends to the outside of the connection cover (2); the rotating shaft (202) passes through the machine base (1), and the rotating shaft (202) is connected to a spring for elastic rotation of the fireproof rolling curtain; a ratchet (201) is fixedly mounted on one side of the outer surface of the rotating shaft (202) located inside the connection cover (2); a pawl (203) is movably mounted on one side of the interior of the connection cover (2), and the pawl (203) contacts the ratchet (201); a fixed block (204) is fixedly mounted on one side of the interior of the connection cover (2), and a first spring (205) is fixedly mounted on the bottom surface of the fixed block (204), and the first spring (205) is fixedly connected to the pawl (203); and a rotating plate (4) is provided at one end of the rotating shaft (202) passing through the machine base (1); Both sides of the outer surface of the adjusting column (3) are movably connected with movable rods (301), and one end of the two movable rods (301) extending to the inside of the adjusting column (3) is movably connected with a driving rod (303), and the two driving rods (303) are movably connected to a driving block (304) on one side away from the movable rod (301), and an adjusting rod (305) is fixedly installed on the bottom surface of the driving block (304), and the adjusting rod (305) extends to the outside of the adjusting column (3), and the two ends of the two movable rods (301) located outside the adjusting column (3) are fixedly installed with a second spring (302), and the two second springs (302) are fixedly connected to the outer surface of the adjusting column (3).

2. The fireproof rolling shutter elastic force rotation adjustment device according to claim 1, characterized in that: A mounting block (401) is fixedly mounted on one side of the rotating plate (4), mounting holes (402) are provided on both sides of the mounting block (401), a mounting groove (403) is provided on one end of the rotating shaft (202) close to the rotating plate (4), and connection holes (404) are provided on both sides of the outer surface of the mounting groove (403).

3. The fireproof roller shutter elastic force rotation adjustment device according to claim 2, characterized in that: The sizes of the two mounting holes (402) are respectively the same as the sizes of the two connecting holes (404).

4. The fireproof roller shutter elastic force rotation adjustment device according to claim 2, characterized in that: The outer surface of the rotating plate (4) is provided with a plurality of friction grooves.

5. The fireproof rolling shutter elastic force rotation adjustment device according to claim 1, characterized in that: Two protective covers (101) are movably mounted on one side of the machine base (1), and the rotating plate (4) is located between the two protective covers (101); two fixed plates (102) are fixedly mounted on one side of the machine base (1) located on the protective covers (101); a threaded rod (103) is movably mounted on one side between the two fixed plates (102), and a sliding rod (105) is fixedly mounted on the other side between the two fixed plates (102); a separation block (106) is threadedly connected to the outer surface of the threaded rod (103), and the separation block (106) is movably connected to the sliding rod (105); separation rods (104) are movably mounted on both sides of the separation block (106), and the two separation rods (104) are movably connected to the two protective covers (101) respectively.

6. The fireproof rolling shutter elastic force rotation adjustment device according to claim 5, characterized in that: A rotating handle is movably mounted on one side of the two fixed plates (102), and the rotating handle is fixedly connected to the threaded rod (103).

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