Fire resisting shutter for urban fire fighting

Abstract

The invention provides a fire resisting shutter for urban fire fighting, and relates to the field of fire resisting shutters. The roller shutter comprises a mounting frame, a rolling box and a roller shutter body, the mounting frame is fixedly connected with the rolling box, a lifting groove is formed in the mounting frame, a lifting rod is arranged in the lifting groove, one end of the roller shutter body is contained in the rolling box, the other end of the roller shutter body is fixedly connected with the lifting rod, and a pull supply assembly is arranged on the lifting rod. A control assembly used for controlling the pull supply assembly to be unfolded or folded is arranged between the pull supply assembly and the mounting frame. The method has the effect of high applicability.

Description

Technical Field

[0001] The present application relates to the field of fireproof roller shutters, and in particular to a fireproof roller shutter for urban fire fighting. Background Art

[0002] Fireproof roller shutter is a fireproof and heat-insulating facility suitable for larger openings in buildings. Fireproof roller shutter is widely used in fire-proof partition areas of industrial and civil buildings. It can effectively prevent the spread of fire and protect the safety of life and property. It is an indispensable fireproof facility in modern buildings.

[0003] At present, in the relevant technology, a Chinese invention patent with authorization publication number CN107386941A discloses a fireproof rolling shutter door, which includes a guide rail, a curtain body and a winding device, the curtain body is located in the guide rail, the winding device includes a rolling door machine and a reel, the driving shaft of the rolling door machine drives the reel shaft, and the reel is fixedly connected to the curtain body, wherein the curtain body includes a support, a first curtain surface, a second curtain surface, a fireproof strip and a bottom beam, the first curtain surface is sequentially provided with a first inorganic fiber cotton, a first inorganic fiber cloth and a first silicone cloth from the support to the outside, the second curtain surface is sequentially provided with a second inorganic fiber cotton, a second inorganic fiber cloth and a second silicone cloth from the support to the outside, and the first curtain surface and the second curtain surface are respectively located on both sides of the support, the fireproof strip is arranged between the support and the first curtain surface, the fireproof strip is also arranged between the support and the second curtain surface, and the bottom beam is connected between the bottom of the first curtain surface and the bottom of the second curtain surface.

[0004] However, in the above technology, since the doorway where the fire shutter door is installed is relatively high, once the shutter door is rolled up, if it is necessary to close the shutter door, it is inconvenient for a small person to pull the shutter door. Summary of the invention

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides a fireproof roller shutter for urban fire fighting.

[0006] The present application provides a fireproof rolling shutter for urban fire protection, which adopts the following technical solution: A fireproof roller shutter for urban fire fighting, comprising: an installation frame, a winding box and a roller shutter body, the installation frame being fixedly connected to the winding box, a lifting slot being provided on the installation frame, and a lifting rod being provided in the lifting slot, one end of the roller shutter body being accommodated in the winding box, and the other end being fixedly connected to the lifting rod, a supply and pull component being provided on the lifting rod, and a control component for controlling the display or recovery of the supply and pull component being provided between the supply and pull component and the installation frame.

[0007] By adopting the above technical solution, the operator can first manipulate the control component to open the supply and pull component, so that the operator can first pull down the roller shutter body to a lower height through the supply and pull component; then, the operator can directly pull down the roller shutter body, so that operators of different heights can easily pull down the roller shutter body to improve applicability.

[0008] Optionally, the supply-pull assembly includes: a storage rod, a supply-pull rod and a connecting rope, the lifting rod is provided with a storage groove, the storage rod is rotatably installed in the storage groove, the supply-pull rod is arranged in the storage groove, and one end of the connecting rope is wrapped around the storage rod, and the other end is fixedly connected to the supply-pull rod, and the control assembly is arranged between the storage rod and the mounting frame.

[0009] By adopting the above technical solution, when the shutter body needs to be pulled down, the control component is used to unlock the storage rod, so that the connecting rope will lower the supply and pull rod, so that the operator can grab the supply and pull rod to pull down the shutter body.

[0010] Optionally, the control component includes: a one-way limiting part, a reset part and a control part, the one-way limiting part is arranged between the storage rod and the lifting rod, the reset part is arranged between the one-way limiting part and the lifting rod, and the control part is arranged between the installation frame and the reset part.

[0011] By adopting the above technical solution, the operator controls the reset part through the control part so that the one-way restriction part is separated, thereby facilitating the lowering of the pull rod.

[0012] Optionally, the one-way limiting portion includes: an extension rod, a ratchet and a pawl, the lifting rod is provided with a receiving groove, one end of the extension rod is fixed to the storage rod, and the other end passes through the receiving groove and is coaxially fixed with the ratchet, the pawl is installed on the reset portion, and the pawl cooperates with the ratchet.

[0013] By adopting the above technical solution, the storage rod can be locked in one direction by utilizing the cooperation between the ratchet and the pawl, so that the connecting rope cannot lower the pull rod.

[0014] Optionally, the reset part includes: a reset plate, a reset iron rod and a reset spring, the reset plate is slidably arranged in the accommodating groove, a reset hole is opened on the lifting rod, one end of the reset iron rod is arranged in the reset hole, and the other end passes through the accommodating groove and is fixed to the reset plate, the reset spring is sleeved on the reset iron rod and one end is fixed to the reset iron rod, and the other end is fixed to the bottom of the reset hole, and the control part is arranged between the mounting frame and the reset iron rod.

[0015] By adopting the above technical solution, the operator holds the control part to drive the reset iron rod to move, and the reset iron rod will drive the pawl to move until the pawl is separated from the ratchet wheel to release the one-way lock on the storage rod; if the control part is no longer operated, the reset spring will reset the reset iron rod, that is, reset the pawl, until the pawl cooperates with the ratchet wheel again, thereby one-way locking the storage rod again.

[0016] Optionally, the control part includes: a magnetic rod, a control rope and a control spring. A control hole is opened on the inner wall of the lifting slot. The magnetic rod is arranged in the control hole and attracted to the reset iron rod. The control spring is fixed between the magnetic rod and the bottom of the control hole. One end of the control rope is fixed to the magnetic rod, and the other end passes through the installation frame.

[0017] By adopting the above technical solution, when it is necessary to pull down the roller shutter body, the operator holds the control rope and pulls it; during this process, the magnetic rod drives the reset part to move, and the reset part will drive the pawl to move until the pawl is separated from the ratchet wheel to release the one-way lock on the storage rod; then, through the deadweight of the supply and pull rod, the connecting rope will lower the supply and pull rod, making it convenient for the operator to pull down the roller shutter body.

[0018] Optionally, the control assembly further includes: a retracting portion and a limiting portion, the retracting portion is arranged between the storage rod and the installation frame, and the limiting portion is arranged between the retracting portion and the storage rod.

[0019] By adopting the above technical solution, if the operator can directly pull down the roller shutter body, the retracting part can retract the pull rod into the storage groove, thereby not easily affecting the closing of the roller shutter body.

[0020] Optionally, the retracting part includes: a retracting rod, a gear and a rack, the rack is fixed in the lifting slot, the lifting rod is provided with a clearance slot for the rack to pass through, the storage rod is provided with a mounting hole, one end of the retracting rod is rotatably installed in the mounting hole, the other end passes through the clearance slot and is coaxially fixed with the gear, and the limiting part is arranged between the storage rod and the retracting rod.

[0021] By adopting the above technical solution, the operator can directly pull down the roller shutter body, the gear will engage with the rack, and the gear will drive the winding rod and the storage rod to rotate in turn, thereby winding the connecting rope and recovering the pull rod into the storage groove, which will not easily affect the closing of the roller shutter body.

[0022] Optionally, the limiting part includes: a limiting rod and a limiting spring, a seating hole is provided on the retracting rod, a limiting hole is provided on the inner wall of the mounting hole, one end of the limiting rod is arranged in the limiting hole, and the other end is arranged in the seating hole, the limiting spring is fixed between the limiting rod and the bottom of the seating hole, and a guide surface is provided on the limiting rod.

[0023] By adopting the above technical solution, during the descent of the lifting rod, due to the limitation of the limit rod, the reeling rod can drive the storage rod to rotate together, thereby reeling in the connecting rope; when the reeling is completed and the lifting rod needs to rise, the limit rod can be pressed back into the placement hole through the setting of the guide surface, so that the reeling rod remains idle and does not drive the storage rod to rotate.

[0024] Optionally, the control unit further includes: a pulling ball, which is fixedly connected to an end of the control rope away from the magnetic rod.

[0025] By adopting the above technical solution, when the control rope needs to be pulled, the operator can directly hold the pull ball to pull the control rope, which is more comfortable and convenient.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The operator can first manipulate the control component to open the supply and pull component, so that the operator can first pull down the roller shutter body to a lower height through the supply and pull component; then, the operator can directly pull down the roller shutter body, so that operators of different heights can easily pull down the roller shutter body to improve applicability.

[0027] 2. When the shutter body needs to be pulled down, the control assembly is used to unlock the storage rod, so that the connecting rope will lower the supply and pull rod, so that the operator can grab the supply and pull rod and pull down the shutter body.

[0028] 3. When the control rope needs to be pulled, the operator can directly hold the pull ball to pull the control rope, which is more comfortable and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the structure according to an embodiment of the present application; Figure 2 yes Figure 1 A schematic top view of Figure 3 is along Figure 2 A schematic cross-sectional view taken along the cutting line AA in FIG. Figure 4 yes Figure 3 A schematic partial enlarged view of part B; Figure 5 yes Figure 3Schematic partial enlarged view of part C.

[0030] In the figure: 1. installation frame; 11. lifting slot; 12. control hole; 2. winding box; 3. rolling curtain body; 4. lifting rod; 41. storage slot; 42. accommodating slot; 43. reset hole; 44. clearance slot; 5. supply and pull assembly; 51. storage rod; 511. installation hole; 512. limiting hole; 52. supply and pull rod; 53. connecting rope; 6. one-way limiting part; 61. extension rod; 62. ratchet; 63. pawl; 7. reset part; 71. reset plate; 72. reset iron rod; 73. reset spring; 8. control part; 81. magnetic rod; 82. control rope; 83. control spring; 84. pulling ball; 9. winding part; 91. winding rod; 911. placement hole; 92. gear; 93. rack; 10. limiting part; 101. limiting rod; 1011. guide surface; 102. limiting spring. DETAILED DESCRIPTION

[0031] The present application provides a fireproof roller shutter for urban fire fighting.

[0032] See also Figure 1 , Figure 2 and Figure 3 A fireproof rolling shutter for urban fire protection includes: an installation frame 1, a winding box 2 and a rolling shutter body 3. The installation frame 1 is fixed on the bottom wall of the winding box 2. In this embodiment, the installation frame 1 is "U"-shaped, and a conventional winding device (not shown in the figure) is installed in the winding box 2 to roll up the rolling shutter body 3; during actual installation, the installation frame 1 is embedded in the wall.

[0033] See also Figure 3 The inner wall of the mounting frame 1 is provided with a lifting slot 11, and a lifting rod 4 is slidably arranged in the lifting slot 11, and the lifting rod 4 can slide in the vertical direction. One end of the rolling shutter body 3 is stored in the winding box 2, and the other end passes through the winding box 2 and is connected to the top wall of the lifting rod 4, that is, the lifting rod 4 is controlled to move up and down, and the rolling shutter body 3 can be controlled to unfold or roll up.

[0034] See also Figure 3 A supply and pull component 5 is provided on the lifting rod 4, and a control component is provided between the supply and pull component 5 and the mounting frame 1. If an operator with a shorter height needs to pull down the rolling curtain body 3, the operator can first operate the control component to open the supply and pull component 5, so that the operator can first pull down the rolling curtain body 3 to a lower height through the supply and pull component 5; then, the operator can directly pull down the rolling curtain body 3, so that operators of different heights can easily pull down the rolling curtain body 3 to improve applicability; and in the process of pulling down the rolling curtain body 3, the supply and pull component 5 will be automatically recovered, so that it is not easy to affect the closing of the rolling curtain body 3.

[0035] See also Figure 3The supply and pull assembly 5 includes: a storage rod 51, a supply and pull rod 52 and a connecting rope 53. The bottom wall of the lifting rod 4 is provided with a storage groove 41 along the length direction. The storage rod 51 is horizontally rotatably installed in the storage groove 41. The supply and pull rod 52 is stored in the storage groove 41, and one end of the connecting rope 53 is wound around the storage rod 51, and the other end is fixedly connected to the top wall of the supply and pull rod 52. When the roller shutter body 3 needs to be pulled down, the control assembly is used to unlock the storage rod 51, so that the connecting rope 53 will lower the supply and pull rod 52, so that the operator can grab the supply and pull rod 52 and pull down the roller shutter body 3.

[0036] See also Figure 4 The control component includes: a one-way limiting part 6, a reset part 7 and a control part 8.

[0037] See also Figure 4 The one-way limiting part 6 includes: an extension rod 61, a ratchet 62 and a pawl 63. The bottom wall of the lifting rod 4 is provided with a receiving groove 42. One end of the extension rod 61 is fixedly connected to the receiving rod 51, and the other end passes through the receiving groove 42 and is coaxially fixed with the ratchet 62. The pawl 63 is fixedly installed on the reset part 7, and the pawl 63 cooperates with the ratchet 62. By using the cooperation between the ratchet 62 and the pawl 63, the receiving rod 51 can be one-way locked, so that the connecting rope 53 cannot lower the supply and pull rod 52.

[0038] See also Figure 4 The control part 8 includes: a magnetic rod 81, a control rope 82 and a control spring 83. The inner wall of the lifting groove 11 is provided with a control hole 12, and the magnetic rod 81 is arranged in the control hole 12 and connected to the reset part 7. The control spring 83 is fixed between the magnetic rod 81 and the bottom of the control hole 12, and the control spring 83 is used to push the magnetic rod 81 toward the lifting rod 4. One end of the control rope 82 is fixed to the end of the magnetic rod 81 close to the control spring 83, and the other end extends outward through the installation frame 1. When the roller shutter body 3 needs to be pulled down, the operator holds the control rope 82 and pulls it. During this process, the magnetic rod 81 drives the reset part 7 to move, so that the reset part 7 drives the pawl 63 to move until the pawl 63 is separated from the ratchet 62 to release the one-way lock on the storage rod 51. Then, through the deadweight of the supply and pull rod 52, the connecting rope 53 will lower the supply and pull rod 52, so as to facilitate the operator to pull down the roller shutter body 3. After the control rope 82 is released, the reset portion 7 will reset the pawl 63 until the pawl 63 is matched with the ratchet wheel 62 again, thereby one-way locking the storage rod 51 again.

[0039] See also Figure 1 Furthermore, the control unit 8 also includes: a pulling ball 84, which is fixedly connected to one end of the control rope 82 away from the magnetic rod 81. When the control rope 82 needs to be pulled, the operator can directly hold the pulling ball 84 to pull the control rope 82, which is more comfortable and convenient.

[0040] See also Figure 4 The reset part 7 includes a reset plate 71, a reset iron rod 72 and a reset spring 73. The reset plate 71 is horizontally slidably arranged in the receiving groove 42, and the pawl 63 is fixedly installed on the side wall of the reset plate 71. A reset hole 43 is opened on the end wall of the lifting rod 4 close to the magnetic rod 81. One end of the reset iron rod 72 is arranged in the reset hole 43 and attracted to the magnetic rod 81, and the other end passes through the receiving groove 42 and is fixedly connected to the reset plate 71. In this embodiment, the reset iron rod 72 is made of iron material.

[0041] See also Figure 4 The reset spring 73 is sleeved on one end of the reset iron rod 72 located in the reset hole 43, and one end of the reset spring 73 is fixed to the reset iron rod 72, and the other end is fixed to the bottom of the reset hole 43. The reset spring 73 is used to reset the reset iron rod 72. When the control rope 82 is pulled, the magnetic rod 81 drives the reset iron rod 72 to move, so that the pawl 63 can be separated from the ratchet 62; after the control rope 82 is loosened, the control spring 83 pushes the magnetic rod 81 to reset; the reset spring 73 restores its deformation to reset the reset iron rod 72, so that the pawl 63 cooperates with the ratchet 62 again.

[0042] See also Figure 3 and Figure 5 The control component also includes: a winding part 9 and a limiting part 10.

[0043] See also Figure 3 The retracting part 9 includes: a retracting rod 91, a gear 92 and a rack 93. The rack 93 is fixed on the inner side wall of the lifting groove 11 and is vertically arranged. The end of the lifting rod 4 away from the reset hole 43 is penetrated by a clearance groove 44 for the rack 93 to penetrate. The end of the storage rod 51 away from the extension rod 61 is provided with a mounting hole 511. One end of the retracting rod 91 is rotatably installed in the mounting hole 511, and the other end is penetrated into the clearance groove 44 and fixed coaxially with the gear 92. After the operator can directly pull down the roller shutter body 3, the gear 92 will mesh with the rack 93, and the gear 92 will drive the retracting rod 91 and the storage rod 51 to rotate in turn, so as to retract the connecting rope 53, so as to recycle the pull rod 52 into the storage groove 41, so as not to affect the closing of the roller shutter body 3.

[0044] See also Figure 5 The limiting part 10 includes: a limiting rod 101 and a limiting spring 102. A placement hole 911 is provided at one end of the winding rod 91 located in the mounting hole 511, and a limiting hole 512 is provided on the inner wall of the mounting hole 511; one end of the limiting rod 101 is arranged in the limiting hole 512, and the other end is arranged in the placement hole 911. The limiting rod 101 can limit the winding rod 91 and the storage rod 51.

[0045] See also Figure 5 The limiting spring 102 is fixed between the limiting rod 101 and the bottom of the placement hole 911, and the limiting spring 102 is used to push the limiting rod 101 to be stably inserted into the limiting hole 512. The end of the limiting rod 101 away from the limiting spring 102 is provided with a guide surface 1011, and the end of the guide surface 1011 close to the limiting spring 102 extends out of the limiting hole 512. During the descent of the lifting rod 4, due to the limitation of the limiting rod 101, the reeling rod 91 can drive the storage rod 51 to rotate together, so as to reel the connecting rope 53; when the reeling is completed and the lifting rod 4 needs to rise, the limiting rod 101 can be pressed back into the placement hole 911 through the setting of the guiding surface 1011, so that the reeling rod 91 keeps idling, so as not to drive the storage rod 51 to rotate.

[0046] The working principle of a fireproof roller shutter for urban fire fighting in the present application is specifically as follows: when it is necessary to pull down the roller shutter body 3, the operator holds the control rope 82 and pulls it; during this process, the magnetic rod 81 drives the reset part 7 to move, and the reset part 7 will drive the pawl 63 to move until the pawl 63 is separated from the ratchet 62 to release the one-way lock on the storage rod 51; then, through the deadweight of the supply and pull rod 52, the connecting rope 53 will lower the supply and pull rod 52, thereby facilitating the operator to pull down the roller shutter body 3.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fireproof roller shutter for urban fire fighting, characterized in that: include: The invention comprises an installation frame (1), a winding box (2) and a roller shutter body (3), wherein the installation frame (1) is fixedly connected to the winding box (2), a lifting groove (11) is provided on the installation frame (1), and a lifting rod (4) is provided in the lifting groove (11), one end of the roller shutter body (3) is received in the winding box (2), and the other end is fixedly connected to the lifting rod (4), a supply and pull component (5) is provided on the lifting rod (4), and a control component for controlling the display or recovery of the supply and pull component (5) is provided between the supply and pull component (5) and the installation frame (1).

2. The fireproof rolling shutter for urban fire fighting according to claim 1, characterized in that: The supply-pull assembly (5) comprises: a storage rod (51), a supply-pull rod (52) and a connecting rope (53); a storage groove (41) is provided on the lifting rod (4); the storage rod (51) is rotatably installed in the storage groove (41); the supply-pull rod (52) is arranged in the storage groove (41); one end of the connecting rope (53) is wound around the storage rod (51) and the other end is fixedly connected to the supply-pull rod (52); the control assembly is arranged between the storage rod (51) and the installation frame (1).

3. The fireproof rolling shutter for urban fire fighting according to claim 2 is characterized in that: The control component comprises: a one-way limiting part (6), a reset part (7) and a control part (8); the one-way limiting part (6) is arranged between the storage rod (51) and the lifting rod (4); the reset part (7) is arranged between the one-way limiting part (6) and the lifting rod (4); and the control part (8) is arranged between the installation frame (1) and the reset part (7).

4. The fireproof rolling shutter for urban firefighting according to claim 3 is characterized in that: The one-way limiting portion (6) comprises: an extension rod (61), a ratchet (62) and a pawl (63); a receiving groove (42) is provided on the lifting rod (4); one end of the extension rod (61) is fixed to the receiving rod (51), and the other end passes through the receiving groove (42) and is coaxially fixed to the ratchet (62); the pawl (63) is installed on the resetting portion (7), and the pawl (63) cooperates with the ratchet (62).

5. The fireproof rolling shutter for urban fire fighting according to claim 4 is characterized in that: The reset part (7) comprises: a reset plate (71), a reset iron rod (72) and a reset spring (73); the reset plate (71) is slidably arranged in the accommodating groove (42); a reset hole (43) is provided on the lifting rod (4); one end of the reset iron rod (72) is arranged in the reset hole (43), and the other end passes through the accommodating groove (42) and is fixed to the reset plate (71); the reset spring (73) is sleeved on the reset iron rod (72) and one end is fixed to the reset iron rod (72) and the other end is fixed to the bottom of the reset hole (43); the control part (8) is arranged between the mounting frame (1) and the reset iron rod (72).

6. The fireproof rolling shutter for urban firefighting according to claim 5, characterized in that: The control part (8) comprises: a magnetic rod (81), a control rope (82) and a control spring (83); a control hole (12) is opened on the inner wall of the lifting groove (11); the magnetic rod (81) is arranged in the control hole (12) and is attracted to the reset iron rod (72); the control spring (83) is fixed between the magnetic rod (81) and the bottom of the control hole (12); one end of the control rope (82) is fixed to the magnetic rod (81) and the other end passes through the installation frame (1).

7. The fireproof rolling shutter for urban fire fighting according to claim 2, characterized in that: The control assembly further comprises: a retracting portion (9) and a limiting portion (10); the retracting portion (9) is arranged between the storage rod (51) and the installation frame (1); and the limiting portion (10) is arranged between the retracting portion (9) and the storage rod (51).

8. The fireproof rolling shutter for urban firefighting according to claim 7, characterized in that: The retracting portion (9) comprises: a retracting rod (91), a gear (92) and a rack (93); the rack (93) is fixed in the lifting groove (11); a clearance groove (44) for the rack (93) to pass through is provided on the lifting rod (4); a mounting hole (511) is provided on the storage rod (51); one end of the retracting rod (91) is rotatably mounted in the mounting hole (511), and the other end passes through the clearance groove (44) and is coaxially fixed with the gear (92); the limiting portion (10) is arranged between the storage rod (51) and the retracting rod (91).

9. The fireproof rolling shutter for urban fire fighting according to claim 8, characterized in that: The limiting part (10) comprises: a limiting rod (101) and a limiting spring (102); a placement hole (911) is provided on the reeling rod (91); a limiting hole (512) is provided on the inner wall of the mounting hole (511); one end of the limiting rod (101) is arranged in the limiting hole (512) and the other end is arranged in the placement hole (911); the limiting spring (102) is fixed between the limiting rod (101) and the bottom of the placement hole (911); and a guiding surface (1011) is provided on the limiting rod (101).

10. The fireproof rolling shutter for urban fire fighting according to claim 6, characterized in that: The control part (8) further comprises a pulling ball (84), wherein the pulling ball (84) is fixedly connected to an end of the control rope (82) away from the magnetic rod (81).

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