Fire-fighting fire-extinguishing rescue windowsill lifting bracket

Abstract

The invention discloses a fire-fighting fire-extinguishing rescue windowsill lifting support, and belongs to the technical field of fire-fighting fire-extinguishing rescue equipment.The fire-fighting fire-extinguishing rescue windowsill lifting support comprises a mounting plate, a first clamping plate is arranged on the bottom wall of the mounting plate, a second clamping plate is slidably mounted on the mounting plate, and a threaded rod in threaded fit with the second clamping plate is rotatably mounted on the mounting plate; a furling assembly is arranged on the mounting plate; and the winding assembly comprises a winding box fixedly mounted on the mounting plate, a winding rod is rotationally mounted on the winding box, and a rescue rope is wound on the winding rod. According to the scheme, the linkage block is arranged, the reciprocating lead screw is driven to rotate through the first belt in the rotating process of the winding rod, then the linkage block is driven to reciprocate in the rotating process of the reciprocating lead screw, the rescue rope is driven to reciprocate in the reciprocating process of the linkage block, and the rescue rope is evenly wound around the winding rod; therefore, the rescue ropes are prevented from being mutually wound and knotted to affect the rescue efficiency, and the effect of improving the rescue efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting and rescue equipment, and more specifically to a fire-fighting and rescue window sill lifting bracket. Background Art

[0002] Fire is a major emergency event that threatens the safety of life and property, and has a serious impact on people's life, property and social and economic development. Firefighting is to eliminate hidden dangers and prevent disasters. It mainly includes the rescue of personnel at the fire scene, the rescue of important facilities and equipment, cultural relics, the security and rescue of important property, and the extinguishing of fires. The purpose is to reduce the degree of damage caused by fire and reduce casualties and property losses.

[0003] At present, when fire rescue is carried out on the ground or the bottom floor, the fire is generally extinguished directly by fire trucks or fire hydrants. However, when the floors are high, the water flow sprayed by fire trucks and fire hydrants is limited, and it is difficult to spray to the fire, which seriously affects the fire extinguishing effect. Although some fire-fighting equipment can use a pan / tilt to raise the position of firefighters so that effective firefighting can be carried out, the firefighters are located below the fire point, and as the fire continues, the fire point is prone to falling objects, which seriously affects the safety of the firefighters. Then, with the development of technology, a Chinese utility model patent with announcement number CN215558800U discloses a fire-fighting and rescue window sill lifting bracket, and the user can clamp the bracket on the window sill. Then, the cable on the bracket is used to slowly approach the fire point, so that firefighters can extinguish the fire at the fire point, and the safety hazards caused by falling objects from high altitudes can be avoided. However, most of these fire-fighting lifting brackets can only be installed on window sills. For some floors that are high and the fire is more urgent, or when the danger on the floor is relatively large, in order to improve rescue efficiency and reduce losses, firefighters usually take a helicopter directly to the roof, and then install a lifting bracket on the roof to lift materials or personnel, and transport them by helicopter. However, most of the existing fire-fighting lifting brackets can only be installed on window sills, and it is not convenient to install a lifting bracket on the roof to lift materials or personnel, which seriously affects the rescue efficiency.

[0004] In view of the above problems, some solutions are also provided in the prior art. For example, the Chinese utility model patent with announcement number CN216918391U discloses a fire-fighting and rescue window sill lifting bracket. Through the cooperation between the swing plate and the fixed column, when the top plate pushes the right side of the swing plate, the left side of the swing plate will drive the clamping plate to move left by pushing the fixed column to move left, so that the device can be fixedly clamped on the window sill or the roof through the cooperation between the clamping plate and the frame, which is convenient for the operator to use and improves the rescue efficiency. However, in actual use, the lifting bracket realizes the winding of the rescue rope through the winding roller, and then drives the user to move up and down during the winding of the rescue rope, that is, the lifting of materials or personnel is realized by the winding of the rescue rope. The rescue rope is directly wound on the winding roller, and the rescue rope cannot be evenly wound on the winding roller. When the rescue rope is wound on the winding roller, the rescue ropes that are superimposed on each other are easily entangled, which seriously affects the lifting efficiency of materials or personnel, and then seriously affects the rescue efficiency. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a fire-fighting and rescue window sill lifting bracket, which can achieve the purpose of improving the rescue efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A firefighting and rescue window sill lifting bracket comprises a mounting plate, a first clamping plate is arranged on the bottom wall of the mounting plate, a second clamping plate is slidably mounted on the mounting plate, a threaded rod which is threadably matched with the second clamping plate is rotatably mounted on the mounting plate, and a reeling assembly is arranged on the mounting plate;

[0008] The winding assembly includes a winding box fixedly mounted on a mounting plate, a winding rod rotatably mounted on the winding box, and a rescue rope is wound on the winding rod, a crank handle is fixedly mounted on the winding rod, a reciprocating screw rod is rotatably mounted on the inner wall of the winding box, and a first belt is commonly mounted between the reciprocating screw rod and the winding rod, a connecting block slidably matched with the rescue rope is threadedly mounted on the reciprocating screw rod, a support rod is fixedly mounted on the top wall of the mounting plate, a roller slidably matched with the rescue rope is rotatably mounted on the support rod, and a rescue hook is fixedly mounted on one end of the rescue rope away from the winding rod.

[0009] Furthermore, a mounting cylinder is fixedly installed on the winding box, a linkage cylinder is rotatably installed on the inner wall of the mounting cylinder, a first bevel gear is fixedly installed on the linkage cylinder, a rotating rod is rotatably installed on the winding box, a second bevel gear meshing with the first bevel gear is fixedly installed on the rotating rod, a second belt is jointly installed between the rotating rod and the reciprocating screw rod, a cleaning ring is provided on the linkage cylinder, and cleaning bristles are evenly and fixedly installed on the cleaning ring.

[0010] Furthermore, a horizontal sliding rod and a vertical sliding rod are symmetrically mounted on the linkage block, a guide rod is fixedly mounted on the top wall of the reel box, a guide groove is provided on the guide rod, and a sliding roller is symmetrically rotatably mounted on the guide groove.

[0011] Furthermore, a sliding groove is provided on the linkage cylinder, and the cleaning ring is slidably matched with the sliding groove, a limiting rod slidably matched with the linkage cylinder is evenly fixedly installed on the cleaning ring, a reset pad is jointly installed between the cleaning ring and the sliding groove, an inclined block is fixedly installed on the cleaning ring, and a push rod matched with the inclined block is fixedly installed on the inner top wall of the winding box.

[0012] Furthermore, a cleaning cavity is provided on the cleaning ring, a cleaning hole connected to the outside is provided on the cleaning cavity, a cavity is provided on the reset pad, an air inlet valve whose input end is connected to the outside is inserted into the cavity, and an exhaust valve whose output end is connected to the cavity is inserted into the cavity.

[0013] Furthermore, a limit plate is symmetrically fixedly installed on the rewinding rod, and a mounting ring that cooperates with the limit plate is fixedly installed on the side wall of the rewinding box. A mounting groove is provided on the limit plate, and a locking rod is slidably installed in the mounting groove. A first spring is commonly installed between the locking rod and the mounting groove, and locking grooves that slidably cooperate with the locking rod are evenly provided on the mounting ring.

[0014] Furthermore, a pneumatic telescopic rod is installed on the guide rod, an annular scraper is fixedly installed on the output end of the pneumatic telescopic rod, a first air pipe is inserted on the input end of the pneumatic telescopic rod, a control component is provided on the limit plate, and the first air pipe is connected to the installation groove through the control component.

[0015] Furthermore, the control component includes a linkage groove provided on the limit plate, a blocking rod is slidably installed in the linkage groove, a second spring is jointly installed between the blocking rod and the installation groove, a connecting groove is provided on the blocking rod, an annular groove is provided on the reeling box, a second air pipe connected to the connecting groove is inserted in the annular groove, a one-way valve whose input end is connected to the annular groove is inserted in the installation groove, and the end of the first air pipe away from the pneumatic telescopic tube is connected to the annular groove.

[0016] Furthermore, a limiting rod cooperating with the roller is fixedly mounted on the support rod.

[0017] Furthermore, the side wall of the cleaning hole forms an angle of sixty degrees with the inner wall of the cleaning ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution provides a linkage block. When the reeling rod rotates, the first belt drives the reciprocating screw to rotate. When the reciprocating screw rotates, the linkage block is driven to reciprocate. When the linkage block reciprocates, the rescue rope is driven to reciprocate. The rescue rope is evenly wound around the reeling rod, thereby preventing the rescue rope from being entangled and knotted, which affects the rescue efficiency. This improves the rescue efficiency.

[0020] (2) This solution sets a second belt, and during the rotation of the reciprocating screw, the second belt drives the rotating rod to rotate, and during the rotation of the rotating rod, the second bevel gear drives the first bevel gear to rotate, and during the rotation of the first bevel gear, the linkage cylinder drives the cleaning ring to rotate, and during the rotation of the cleaning ring, the cleaning hair can be driven to rotate and clean the stains on the rescue rope, thereby ensuring that the rescue rope can perform the lifting work normally, and further improving the rescue efficiency;

[0021] (3) This scheme sets a locking rod. When the object on the rescue hook falls downward, the rescue rope moves downward quickly, so that the limit plate can be driven to rotate quickly through the reeling rod. At this time, the locking rod moves into the locking groove under the action of centrifugal force and stretches the first spring. Since the object on the rescue hook will apply tension to the rescue rope, the rescue rope will then apply tension to the reeling rod and apply tangential tension to the reeling rod. Then the reeling rod will apply tension to the locking rod, and the locking rod will be tightly stuck in the locking groove and cannot move, thereby reducing safety hazards and improving rescue efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a cross-sectional view of the reel box, reel rod and linkage block of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 It is a combined diagram of the first belt, the second belt, the retracting rod, the reciprocating screw rod and the threaded rod of the present invention;

[0026] Figure 5 It is a cross-sectional view of the installation cylinder, the linkage cylinder and the cleaning ring of the present invention;

[0027] Figure 6 It is a combined diagram of the linkage block, the horizontal slide bar and the vertical slide bar of the present invention;

[0028] Figure 7 It is a side cross-sectional view of the limit plate, the mounting ring and the locking rod of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0030] Fig. 9 It is a bottom view of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1. Mounting plate; 2. First clamping plate; 3. Second clamping plate; 4. Threaded rod;

[0033] 5. Reeling assembly; 501. Reeling box; 502. Reeling rod; 503. Rescue rope; 504. Crank handle; 505. Reciprocating screw rod; 506. First belt; 507. Linking block; 508. Support rod; 509. Roller; 510. Rescue hook;

[0034] 601, mounting cylinder; 602, linkage cylinder; 603, first bevel gear; 604, rotating rod; 605, second bevel gear; 606, second belt; 607, cleaning ring; 608, cleaning hair;

[0035] 701, vertical slide bar; 702, horizontal slide bar; 703, guide bar; 704, slide roller;

[0036] 801, limit rod; 802, reset pad; 803, inclined block; 804, push rod; 805, cleaning chamber; 806, cleaning hole; 807, cavity; 808, intake valve; 809, exhaust valve;

[0037] 901, limit plate; 902, mounting ring; 903, locking rod; 904, mounting groove; 905, first spring; 906, locking groove; 907, pneumatic telescopic rod; 908, annular scraper; 909, first air pipe;

[0038] 10. Control assembly; 101. Blocking rod; 102. Second spring; 103. Communication groove; 104. Annular groove; 105. Second air pipe; 106. One-way valve;

[0039] 11. Limiting rod. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 9A firefighting and rescue window sill lifting bracket comprises a mounting plate 1, a first clamping plate 2 is arranged on the bottom wall of the mounting plate 1, a second clamping plate 3 is slidably mounted on the mounting plate 1, a threaded rod 4 threadably matched with the second clamping plate 3 is rotatably mounted on the mounting plate 1, and a reeling assembly 5 is arranged on the mounting plate 1;

[0042] The winding assembly 5 includes a winding box 501 fixedly mounted on the mounting plate 1, a winding rod 502 rotatably mounted on the winding box 501, and a rescue rope 503 is wound on the winding rod 502, a crank handle 504 is fixedly mounted on the winding rod 502, a reciprocating screw rod 505 is rotatably mounted on the inner wall of the winding box 501, and a first belt 506 is commonly mounted between the reciprocating screw rod 505 and the winding rod 502, a connecting block 507 slidably matched with the rescue rope 503 is threadedly mounted on the reciprocating screw rod 505, a support rod 508 is fixedly mounted on the top wall of the mounting plate 1, a roller 509 slidably matched with the rescue rope 503 is rotatably mounted on the support rod 508, and a rescue hook 510 is fixedly mounted on the end of the rescue rope 503 away from the winding rod 502.

[0043] When in use, the wall is placed between the first clamping plate 2 and the second clamping plate 3, and then the threaded rod 4 is rotated. During the rotation of the threaded rod 4, the second clamping plate 3 is driven to move, and the lifting bracket is fixed to the wall together with the first clamping plate 2. At this time, the firefighters can hang the objects or personnel to be lifted on the rescue hook 510, and then the user can turn the crank handle 504 to drive the reeling rod 502 to rotate. During the rotation of the reeling rod 502, the rescue rope 503 can be reeled in and released, thereby achieving the purpose of lifting. At the same time, during the rotation of the reeling rod 502, the reciprocating screw rod 505 is driven to rotate through the first belt 506, and then the linking block 507 is driven to reciprocate during the rotation of the reciprocating screw rod 505. During the reciprocating motion of the linking block 507, the rescue rope 503 is driven to reciprocate, and the rescue rope 503 is evenly wound around the reeling rod 502, thereby preventing the rescue rope 503 from being entangled with each other and knotting, affecting the rescue efficiency, thereby improving the rescue efficiency.

[0044] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a mounting cylinder 601 is fixedly mounted on the reeling box 501, a linkage cylinder 602 is rotatably mounted on the inner wall of the mounting cylinder 601, a first bevel gear 603 is fixedly mounted on the linkage cylinder 602, a rotating rod 604 is rotatably mounted on the reeling box 501, a second bevel gear 605 meshing with the first bevel gear 603 is fixedly mounted on the rotating rod 604, a second belt 606 is commonly installed between the rotating rod 604 and the reciprocating screw rod 505, a cleaning ring 607 is provided on the linkage cylinder 602, and cleaning bristles 608 are evenly and fixedly mounted on the cleaning ring 607.

[0045] A horizontal slide bar 702 and a vertical slide bar 701 are symmetrically mounted on the linkage block 507 , a guide bar 703 is fixedly mounted on the top wall of the reel box 501 , a guide groove is provided on the guide bar 703 , and a sliding roller 704 is symmetrically rotatably mounted on the guide groove.

[0046] By adopting the above technical scheme, since there are many stains at the fire scene and fire extinguishing agent often needs to be sprayed during the rescue process, the fire extinguishing agent and stains are easily attached to the surface of the rescue rope 503. As the stains on the surface of the rescue rope 503 accumulate, it is easy to affect the normal lifting of the rescue rope 503, and even cause the rescue rope 503 to be stuck on the linkage block 507, seriously affecting the rescue efficiency. Then, in the process of rotation of the reciprocating screw 505, the second belt 606 drives the rotating rod 604 to rotate, and then in the process of rotation of the rotating rod 604, the second bevel gear 605 drives the first bevel gear 603 to rotate, and in the process of rotation of the first bevel gear 603, the cleaning ring 607 is driven to rotate through the linkage cylinder 602, and then in the process of rotation of the cleaning ring 607, the cleaning hair 608 can be driven to rotate and the stains on the rescue rope 503 can be cleaned, thereby ensuring that the rescue rope 503 can be lifted normally, further improving the rescue efficiency.

[0047] In the process of the linkage block 507 driving the rescue rope 503 to move, the rescue rope 503 will drive the horizontal slide bar 702 and the vertical slide bar 701 to rotate, so that the sliding friction between the rescue rope 503 and the linkage block 507 can be converted into rolling friction, thereby reducing the resistance of the rescue rope 503 when moving, and in the process of the linkage block 507 driving the rescue rope 503 to move back and forth, the guide groove on the guide rod 703 can limit the rescue rope 503 to avoid the rescue rope 503 rubbing against the side wall of the cleaning ring 607, resulting in a worse cleaning effect of the rescue rope 503, and at the same time increasing the resistance of the rescue rope 503 when moving, and the setting of the sliding roller 704 can also reduce the wear of the rescue rope 503 and the resistance of the rescue rope 503 when moving.

[0048] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a slide groove is provided on the linkage cylinder 602, and the cleaning ring 607 is slidably matched with the slide groove, a limit rod 801 slidably matched with the linkage cylinder 602 is evenly fixedly installed on the cleaning ring 607, a reset pad 802 is installed between the cleaning ring 607 and the slide groove, an inclined block 803 is fixedly installed on the cleaning ring 607, and a push rod 804 matched with the inclined block 803 is fixedly installed on the inner top wall of the winding box 501.

[0049] The cleaning ring 607 is provided with a cleaning cavity 805, the cleaning cavity 805 is provided with a cleaning hole 806 connected to the outside, the reset pad 802 is provided with a cavity 807, the cavity 807 is provided with an intake valve 808 whose input end is connected to the outside, and the cavity 807 is provided with an exhaust valve 809 whose output end is connected to the cavity 807.

[0050] By adopting the above technical solution, the inclined block 803 is driven to rotate during the rotation of the cleaning ring 607, and the inclined block 803 gradually contacts the push rod 804 during the rotation, and then the push rod 804 drives the inclined block 803 to move through the inclined surface of the inclined block 803, and drives the cleaning ring 607 to move and squeeze the reset pad 802 during the movement of the inclined block 803, and then after the inclined block 803 is out of contact with the push rod 804, the reset pad 802 even drives the cleaning ring 607 to reset, and drives the cleaning hairs 608 to shake back and forth during the shaking back and forth of the cleaning ring 607, which can improve the cleaning effect of the rescue rope 503, and can also shake off the stains on the cleaning hairs 608, thereby improving the cleaning effect of the rescue rope 503.

[0051] During the extension of the reset pad 802, the cavity 807 inhales air from the outside through the air inlet valve 808. Then, during the compression of the reset pad 802, the air flow in the cavity 807 flows into the air cavity through the exhaust valve 809, and flows to the outside through the air holes on the air cavity and blows toward the cleaning hair 608, thereby moving the stains to the outside of the cleaning ring 607, further improving the cleaning effect of the rescue rope 503.

[0052] like Figure 3 , Figure 7 , Figure 8 As shown, a limit plate 901 is symmetrically fixedly installed on the reeling rod 502, and a mounting ring 902 that cooperates with the limit plate 901 is fixedly installed on the side wall of the reeling box 501. A mounting groove 904 is opened on the limit plate 901, and a locking rod 903 is slidably installed in the mounting groove 904. A first spring 905 is jointly installed between the locking rod 903 and the mounting groove 904, and locking grooves 906 that slidably cooperate with the locking rod 903 are evenly opened on the mounting ring 902.

[0053] A pneumatic telescopic rod 907 is installed on the guide rod 703, a ring scraper 908 is fixedly installed on the output end of the pneumatic telescopic rod 907, a first air pipe 909 is inserted on the input end of the pneumatic telescopic rod 907, a control component 10 is provided on the limit plate 901, and the first air pipe 909 is connected to the installation groove 904 through the control component 10.

[0054] The control component 10 includes a linkage groove provided on the limit plate 901, a blocking rod 101 is slidably installed in the linkage groove, a second spring 102 is installed between the blocking rod 101 and the installation groove 904, a connecting groove 103 is provided on the blocking rod 101, an annular groove 104 is provided on the reeling box 501, a second air pipe 105 connected to the connecting groove 103 is inserted in the annular groove 104, a one-way valve 106 whose input end is connected to the annular groove 104 is inserted in the installation groove 904, and the end of the first air pipe 909 away from the pneumatic telescopic tube is connected to the annular groove 104.

[0055] By adopting the above technical solution, when the user rotates the crank handle 504 for a long time to perform the lifting operation, the user's hand will become tired, which makes the crank handle 504 easily detach from the user's hand. At this time, under the action of gravity, the objects and people on the rescue hook 510 will fall downward quickly. When the person to be rescued has heart disease, the rapid fall is likely to cause a recurrence of the heart disease, leaving a serious safety hazard to the safety of the person to be rescued. In addition, when the user holds the crank handle 504 for lifting again, the rescue hook 510 falls off, and the user needs to spend a long time to perform the lifting work again, which seriously affects the rescue efficiency. In the process of rapid falling of the objects and people on the rescue hook 510, the rescue hook 510 will drive the stretched rescue rope 503 to move downward, and in the process of the rescue rope 503 moving downward, it will drive the reeling rod 502 to rotate, and then in the process of the reeling rod 502 rotating, it will drive the limit plate 901 to rotate, and in the process of the limit plate 90 During the rotation, the locking rod 903 is driven to rotate, and then the locking rod 903 tends to move toward the locking groove 906 under the action of centrifugal force, and as the rotation speed of the limiting plate 901 increases, the centrifugal force on the locking rod 903 gradually increases. When the object on the rescue hook 510 falls downward, the rescue rope 503 moves downward quickly, so that the limiting plate 901 can be driven to rotate quickly through the reeling rod 502. At this time, under the action of centrifugal force, the locking rod 903 moves into the locking groove 906 and stretches the first spring 905. Since the object on the rescue hook 510 will apply tension to the rescue rope 503, the rescue rope 503 will apply tension to the reeling rod 502 and apply tangential tension to the reeling rod 502. Then the reeling rod 502 will apply tension to the locking rod 903, and the locking rod 903 is tightly stuck in the locking groove 906 and cannot move. That is, the reeling rod 502 stops rotating at this time, thereby reducing safety hazards and improving rescue efficiency.

[0056] In the process of the locking rod 903 moving toward the locking groove 906, the other fluid in the installation groove 904 is squeezed and tends to flow to the outside, and in the process of the locking rod 903 moving downward, it gradually contacts the blocking rod 101 and applies a downward thrust to the blocking rod 101, and then under the action of the thrust, the blocking rod 101 moves downward and compresses the second spring 102, and when the locking rod 903 is inserted into the locking groove 906, the blocking rod 101 drives the connecting groove 103 to communicate with the second air pipe 105, and at this time, the installation groove 904 The internal air flow flows into the annular groove 104 through the connecting groove 103 and the second air pipe 105, and flows to the input end of the pneumatic telescopic rod 907 through the annular groove 104 and the first air pipe 909, and then the output end of the pneumatic telescopic rod 907 extends. During the extension of the output end of the pneumatic telescopic rod 907, the annular scraper 908 is driven to move along the cleaning ring 607 and clean the impurities on the bristles. At the same time, the impurities remaining in the cleaning ring 607 can also be cleaned, thereby further improving the cleaning effect of the rescue rope 503.

[0057] When the user holds the crank handle 504 again, the user gently turns the crank handle 504 clockwise, and at this time the crank handle 504 drives the locking rod 903 to rotate through the reeling rod 502 and the limit plate 901, and makes the locking rod 903 disengage from the side wall of the locking groove 906, and at this time the first spring 905 stretches and drives the locking rod 903 to disengage from the locking groove 906, and during the movement of the locking rod 903, the mounting groove 904 inhales air from the pneumatic telescopic rod 907 through the one-way valve 106, the annular groove 104, and the first air pipe 909, and makes the output end of the pneumatic telescopic rod 907 contract, and during the contraction of the output end of the pneumatic telescopic rod 907, drives the annular scraper 908 to move outside the cleaning ring 607, and at the same time, the second spring 102 stretches and resets the first blocking rod 101, and makes the connecting groove 103 disengage from the second air pipe 105, thereby preparing for work again.

[0058] like Figure 1 As shown, a limiting rod 11 cooperating with the roller 509 is fixedly mounted on the support rod 508 .

[0059] By adopting the above technical solution, the rescue rope 503 can be restricted between the restriction rod 11 and the roller 509 by setting a restriction bar, thereby preventing the rescue rope 503 from detaching from the support rod 508, thereby reducing safety hazards.

[0060] like Figure 5 As shown, the side wall of the cleaning hole 806 forms an angle of sixty degrees with the inner wall of the cleaning ring 607 .

[0061] By adopting the above technical solution, in the process of the air flow flowing to the outside through the cleaning hole 806, by making the side wall of the cleaning hole 806 and the inner wall of the cleaning ring 607 form an angle of sixty degrees, the air flow can be tilted to move outside the cleaning ring 607, thereby driving impurities to move outside the cleaning ring 607, further improving the cleaning effect.

[0062] Instructions for use: When in use, place the wall between the first clamping plate 2 and the second clamping plate 3, then rotate the threaded rod 4, during the rotation of the threaded rod 4, drive the second clamping plate 3 to move, and fix the lifting bracket on the wall together with the first clamping plate 2. At this time, the firefighters can hang the objects or people to be lifted on the rescue hook 510, and then the user can rotate the crank 504 to drive the reeling rod 502 to rotate. During the rotation of the reeling rod 502, the rescue rope 503 can be reeled in and released, thereby achieving the purpose of lifting. At the same time, during the rotation of the reeling rod 502, the first belt 506 drives the reciprocating screw rod 505 to rotate, and then drives the linkage block 507 to reciprocate during the rotation of the reciprocating screw rod 505, and drives the rescue rope 503 to reciprocate during the reciprocating motion of the linkage block 507, and makes the rescue rope 503 evenly wound around the retracting rod 502; during the rotation of the reciprocating screw rod 505, the second belt 606 drives the rotating rod 604 to rotate, and then during the rotation of the rotating rod 604, the first bevel gear 603 is driven to rotate through the second bevel gear 605, and during the rotation of the first bevel gear 603, the cleaning ring 607 is driven to rotate through the linkage cylinder 602, and then the cleaning ring 607 is driven to rotate. During the rotation of 07, the cleaning hair 608 can be driven to rotate and clean the stains on the rescue rope 503; during the rotation of the cleaning ring 607, the inclined block 803 is driven to rotate, and the inclined block 803 gradually contacts the push rod 804 during the rotation, and then the push rod 804 drives the inclined block 803 to move through the inclined surface of the inclined block 803, and during the movement of the inclined block 803, the cleaning ring 607 is driven to move and squeeze the reset pad 802, and then after the inclined block 803 is out of contact with the push rod 804, the reset pad 802 even drives the cleaning ring 607 to reset, and during the shaking back and forth of the cleaning ring 607, the cleaning hair 608 is driven The first spring 905 is stretched and the second spring 906 is pulled back and forth; when the object on the rescue hook 510 falls down, the rescue rope 503 moves downward quickly, so that the limit plate 901 can be driven to rotate quickly through the reeling rod 502. At this time, the locking rod 903 moves into the locking groove 906 under the action of centrifugal force, and the first spring 905 is stretched. Since the object on the rescue hook 510 applies tension to the rescue rope 503, the rescue rope 503 applies tension to the reeling rod 502, and applies tangential tension to the reeling rod 502. Then the reeling rod 502 applies tension to the locking rod 903, and the locking rod 903 is tightly stuck in the locking groove 906 and cannot move.During the movement of the locking rod 903 toward the locking groove 906, the other parts in the installation groove 904 are squeezed and tend to flow to the outside, and during the downward movement of the locking rod 903, the locking rod 903 gradually contacts the blocking rod 101 and applies a downward thrust to the blocking rod 101. Then, under the action of the thrust, the blocking rod 101 moves downward and compresses the second spring 102. When the locking rod 903 is inserted into the locking groove 906, the blocking rod 101 drives the connecting groove 103 to communicate with the second air pipe 105. At this time, the airflow in the installation groove 904 flows into the annular groove 104 through the connecting groove 103 and the second air pipe 105, and flows to the input end of the pneumatic telescopic rod 907 through the annular groove 104 and the first air pipe 909. Then, the output end of the pneumatic telescopic rod 907 extends. During the extension of the output end of the pneumatic telescopic rod 907, the annular scraper 908 is driven to move along the cleaning ring 607 to clean the impurities on the bristles, and at the same time, the impurities remaining in the cleaning ring 607 can also be cleaned. ;

[0063] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A firefighting and rescue window sill lifting bracket, comprising a mounting plate (1), a first clamping plate (2) being provided on the bottom wall of the mounting plate (1), a second clamping plate (3) being slidably mounted on the mounting plate (1), a threaded rod (4) being rotatably mounted on the mounting plate (1) and being threadably matched with the second clamping plate (3), and a reeling assembly (5) being provided on the mounting plate (1); Features: The reeling assembly (5) comprises a reeling box (501) fixedly mounted on the mounting plate (1); a reeling rod (502) is rotatably mounted on the reeling box (501); a rescue rope (503) is reeled on the reeling rod (502); a crank handle (504) is fixedly mounted on the reeling rod (502); a reciprocating screw rod (505) is rotatably mounted on the inner wall of the reeling box (501); and the reciprocating screw rod (505) and the reeling rod (502) are connected to each other. A first belt (506) is installed between the two parts, a linkage block (507) is threadedly installed on the reciprocating screw rod (505) and is slidably matched with the rescue rope (503), a support rod (508) is fixedly installed on the top wall of the mounting plate (1), a roller (509) is rotatably installed on the support rod (508) and is slidably matched with the rescue rope (503), and a rescue hook (510) is fixedly installed on the end of the rescue rope (503) away from the reeling rod (502).

2. A firefighting and rescue window sill lifting bracket according to claim 1, characterized in that: A mounting cylinder (601) is fixedly mounted on the reeling box (501), a linkage cylinder (602) is rotatably mounted on the inner wall of the mounting cylinder (601), a first bevel gear (603) is fixedly mounted on the linkage cylinder (602), a rotating rod (604) is rotatably mounted on the reeling box (501), a second bevel gear (605) meshing with the first bevel gear (603) is fixedly mounted on the rotating rod (604), a second belt (606) is commonly mounted between the rotating rod (604) and the reciprocating screw rod (505), a cleaning ring (607) is provided on the linkage cylinder (602), and cleaning bristles (608) are evenly and fixedly mounted on the cleaning ring (607).

3. A firefighting and rescue window sill lifting bracket according to claim 2, characterized in that: A horizontal sliding rod (702) and a vertical sliding rod (701) are symmetrically mounted on the linkage block (507); a guide rod (703) is fixedly mounted on the top wall of the reel box (501); a guide groove is formed on the guide rod (703); and a sliding roller (704) is symmetrically mounted on the guide groove.

4. A firefighting and rescue window sill lifting bracket according to claim 3, characterized in that: A slide groove is provided on the linkage cylinder (602), and the cleaning ring (607) is slidably matched with the slide groove. A limit rod (801) slidably matched with the linkage cylinder (602) is evenly fixedly installed on the cleaning ring (607). A reset pad (802) is installed between the cleaning ring (607) and the slide groove. An inclined block (803) is fixedly installed on the cleaning ring (607). A push rod (804) matched with the inclined block (803) is fixedly installed on the inner top wall of the reeling box (501).

5. A firefighting and rescue window sill lifting bracket according to claim 4, characterized in that: The cleaning ring (607) is provided with a cleaning cavity (805), the cleaning cavity (805) is provided with a cleaning hole (806) connected to the outside, the reset pad (802) is provided with a cavity (807), the cavity (807) is provided with an intake valve (808) whose input end is connected to the outside, and the cavity (807) is provided with an exhaust valve (809) whose output end is connected to the cavity (807).

6. A firefighting and rescue window sill lifting bracket according to claim 5, characterized in that: A limit plate (901) is symmetrically fixedly installed on the reeling rod (502), a mounting ring (902) matched with the limit plate (901) is fixedly installed on the side wall of the reeling box (501), a mounting groove (904) is provided on the limit plate (901), a locking rod (903) is slidably installed in the mounting groove (904), a first spring (905) is installed between the locking rod (903) and the mounting groove (904), and locking grooves (906) slidably matched with the locking rod (903) are evenly provided on the mounting ring (902).

7. A firefighting and rescue window sill lifting bracket according to claim 6, characterized in that: A pneumatic telescopic rod (907) is installed on the guide rod (703), an annular scraper (908) is fixedly installed on the output end of the pneumatic telescopic rod (907), a first air pipe (909) is inserted on the input end of the pneumatic telescopic rod (907), a control component (10) is provided on the limit plate (901), and the first air pipe (909) is connected to the installation groove (904) through the control component (10).

8. The fire-fighting and rescue window sill lifting bracket according to claim 7, characterized in that: The control assembly (10) comprises a linkage groove provided on a limit plate (901), a blocking rod (101) being slidably installed in the linkage groove, a second spring (102) being installed between the blocking rod (101) and the installation groove (904), a connecting groove (103) being provided on the blocking rod (101), an annular groove (104) being provided on the reeling box (501), a second air pipe (105) being connected to the connecting groove (103) being inserted into the annular groove (104), a one-way valve (106) having an input end connected to the annular groove (104) being inserted into the installation groove (904), and an end of the first air pipe (909) away from the pneumatic telescopic tube being connected to the annular groove (104).

9. The fire-fighting and rescue window sill lifting bracket according to claim 1, characterized in that: A limiting rod (11) matched with the roller (509) is fixedly mounted on the support rod (508).

10. The fire-fighting and rescue window sill lifting bracket according to claim 5, characterized in that: The side wall of the cleaning hole (806) forms an angle of sixty degrees with the inner wall of the cleaning ring (607).

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