CN116513996A

CN116513996A - Rescue tripod

Info

Publication number: CN116513996A
Application number: CN202310446239.0A
Authority: CN
Inventors: 黄凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-08-01

Abstract

The invention relates to the technical field of rescue equipment and discloses a rescue tripod which comprises a roller and a fixed rod, wherein the roller is movably sleeved on the fixed rod, the inner cavity of the roller is filled with hydraulic oil, the middle part of the fixed rod is movably sleeved with a partition plate, the right side of the partition plate is provided with a guide vane fixedly sleeved on the fixed rod, the partition plate is provided with symmetrical holes for installing a valve, the interior of the valve comprises a stress plate, a spring, a round table plug, a valve blocking block and a damping hole, two ends of the stress plate are fixedly connected to the partition plate, one side of the stress plate is fixedly connected with one end of the spring, the other end of the spring is fixedly connected with one side of the round table plug, the middle of the round table plug is provided with the damping hole, and the side surface of the round table plug is tightly attached to the outer wall of a valve block. The invention realizes the slow descent of the rescue tripod without risk under the action of the valve and the guide vane.

Description

Rescue tripod

Technical Field

The invention relates to the technical field of rescue equipment, in particular to a rescue tripod.

Background

At present, most structures of the existing fire rescue tripod comprise three supporting legs and a top frame supported on the ground through the three supporting legs, the lower ends of the three supporting legs are respectively connected with supporting legs, the three supporting legs are supported on the ground in a triangular mode, the tail ends of three safety chains are connected together, a pulley is arranged below the top frame, a manual winch is fixed on one supporting leg, a driving rod is connected with a rocker, a pull rope is wound on the rocker, and the tail ends of the pull rope are connected with hanging rings by bypassing the pulley. When the rescue device is used, a worker is required to manually rotate the rocker to pay out or retract the pull rope wound on the winding drum, the rescue worker can be stably conveyed to a designated place only by always acting on the handle in the descending process of the rescue worker during rescue, meanwhile, the rescue worker is prevented from falling off in the ascending process of the rescue worker during rescue, and the ratchet wheel is used for self locking; however, when the ratchet is out of action, the rescue workers can quickly fall down to be dangerous, and if the ratchet is out of action, the rescue workers can slowly fall down under the action of the rope to avoid danger.

Aiming at the defects of the prior rescue tripod in the use process, the invention provides the rescue tripod which has the advantage of slow descent and solves the technical problems in the prior art.

The invention provides the following technical scheme: the utility model provides a rescue tripod, includes footstock, support leg, manual capstan winch, wire rope, mount, pulley, footstock lower extreme swing joint has the support leg, footstock lower extreme fixedly connected with mount, the middle part fixed mounting of support leg has manual capstan winch, the pulley is installed to the mount lower extreme, wire rope wears out from manual capstan winch and walks around the pulley, the well lower part of manual capstan winch runs through there is the initiative pole, the right-hand member welding of initiative pole has the one end of rocking arm, the other end welding of rocking arm has the handle, the fixed pinion that cup joints in the left side of initiative pole, the outer meshing of pinion has the gear wheel, the gear wheel is fixed cup joints above the cylinder, the middle part winding of cylinder has wire rope, the cylinder activity cup joints on the dead lever, the dead lever welding is on the inner chamber upper portion of manual capstan winch, be provided with bearing I between the both ends of cylinder and the dead lever, the cylinder inner chamber annotates hydraulic oil, the division board has been cup jointed in the activity in the middle part of the dead lever, be provided with the rocker arm between division board and the dead lever, the right side has fixed deflector on the dead lever.

Preferably, two symmetrical resistance blocks are arranged on two sides of the guide vane, and the resistance blocks are arranged on the inner wall of the roller.

Preferably, a gear ratio exists between the large gear and the small gear.

Preferably, the partition plate is provided with symmetrical holes for installing the valve, the valve comprises a stress plate, a spring, a round table plug, a valve blocking block and a damping hole, two ends of the stress plate are fixedly connected to the partition plate, one side of the stress plate is fixedly connected with one end of the spring, the other end of the spring is fixedly connected with one side of the round table plug, the damping hole is formed in the middle of the round table plug, and the side face of the round table plug is tightly attached to the outer wall of the valve block.

Preferably, a non-slip mat is arranged on the grip.

The invention has the following beneficial effects:

1. according to the invention, the hydraulic oil in the cylinder is driven to rotate by rotating the cylinder during rescue, the hydraulic oil reaches the other side of the partition plate from the valve at the upper part of the cylinder under the action of the guide plate, and then flows back into the cavity where the guide plate is positioned from the valve at the lower side of the partition plate to form backflow, when the rotation speed of the cylinder is too high, the flow limiting effect of the valve enables the hydraulic oil to rotate to have a resistance effect relative to the guide plate, and the resistance block has an effective resistance effect on the hydraulic oil, so that the rotation speed of the cylinder is limited, the rotation speed of the cylinder is reduced, and the safety of rescue workers is ensured.

2. According to the invention, the damping hole is formed in the middle of the valve, when a rescue worker descends, the roller rotates anticlockwise, hydraulic oil rotates clockwise on two sides of the partition plate under the flow guiding effect of the flow guiding sheet, and when the hydraulic oil passes through the valve, the hydraulic oil flows back in the roller through the damping hole, and the rotation speed of the roller is limited by the cooperation of the damping hole, so that the safety of the worker is ensured; when the roller rotates clockwise to drive rescue workers to rise, the hydraulic oil is driven to pass through the valve, the round table plug is extruded to enable the spring compression valve to be opened to the other side of the partition plate, the hydraulic oil flows back into the cavity where the guide vane is located through the valve at the lower end of the partition plate, at the moment, the valve loses the damping effect, the hydraulic oil flows back smoothly, the relative resistance between the guide vane and the hydraulic oil is small, and the damping effect is lost when the rescue workers are pulled up.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the internal construction of the manual winch of the present invention;

FIG. 3 is a schematic view showing the internal construction of the drum of the present invention;

fig. 4 is an enlarged partial schematic view of the invention at a in fig. 3.

In the figure: 1. a top base; 2. a bracket leg; 3. a manual winch; 4. a wire rope; 5. a fixing frame; 6. a pulley; 7. a rocker arm; 8. a driving rod; 9. a pinion gear; 10. a large gear; 11. a roller; 12. a fixed rod; 14. a grip; 15. a bearing I; 16. a bearing II; 17. a valve; 171. a force-bearing plate; 172. a spring; 173. round table plug; 174. a valve block; 175. a damping hole; 18. a deflector; 19. a resistance block; 21. a partition plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 4, a rescue tripod comprises a footstock 1, a bracket leg 2, a manual winch 3, a steel wire rope 4, a fixed frame 5 and a pulley 6, wherein the lower end of the footstock 1 is movably connected with the bracket leg 2, the lower end of the footstock 1 is fixedly connected with the fixed frame 5, the manual winch 3 is fixedly arranged in the middle of the bracket leg 2, the pulley 6 is arranged at the lower end of the fixed frame 5, the steel wire rope 4 passes through the manual winch 3 and bypasses the pulley 6, a driving rod 8 penetrates through the middle lower part of the manual winch 3, one end of a rocker arm 7 is welded at the right end of the driving rod 8, a handle 14 is welded at the other end of the rocker arm 7, a pinion 9 is fixedly sleeved on the left side of the driving rod 8, a large gear 10 is meshed with the outer edge of the pinion 9, a matching speed ratio exists between the pinion 9 and the large gear 10 for achieving the purpose of saving labor, the large gear 10 is fixedly sleeved on a roller 11, the steel wire rope 4 is wound on the middle part of the roller 11, the movable sleeve joint of the roller 11 is arranged on the upper part of the fixed rod 12, the fixed rod 12 is welded on the upper part of an inner cavity of the manual winch 3, the driving rod 8 penetrates through the driving rod 8, one end of the pulley 6, the driving rod 12 and penetrates through the pulley 6, one end of the inner cavity 12, a driving rod 15 is arranged between the two ends of the roller 11 and the fixed rod 12 and the fixed rod 15 is fixedly sleeved with a sealing plate bearing 15, the inner cavity 21, and the inner bearing 15 is fixedly provided with a bearing 16, and the sealing plate bearing 15 is respectively, and the inner bearing 15 is fixedly sleeved on the inner bearing 15 is respectively, and the inner bearing 15 is and the bearing 15 is respectively, and 15 is respectively; when rescue is carried out, the rotary drum 11 drives hydraulic oil in the drum to rotate, the hydraulic oil reaches the other side of the partition plate 21 from the valve 17 at the upper part of the drum 11 under the action of the guide plate 18, and then flows back to the cavity where the guide plate 18 is located from the valve 17 at the lower side of the partition plate 21 to form backflow, when the rotation speed of the drum 11 is too high, the flow limiting effect of the valve 17 enables the hydraulic oil to rotate to have a resistance effect relative to the guide plate 18, so that the rotation speed of the drum 11 is limited, and the rotation speed of the drum 11 is reduced, so that the safety of rescue workers is ensured.

Two symmetrical resistance blocks 19 are arranged on two sides of the guide vane 18, and the resistance blocks 19 are arranged on the inner wall of the roller 11, so that the roller has obvious deceleration effect for giving larger resistance to rotating hydraulic oil, and rescue workers can slowly descend when landing, so that danger does not occur.

A gear ratio exists between the large gear 10 and the small gear 9, so that labor is saved and rescue workers can be conveniently pulled up.

The partition plate 21 is provided with symmetrical holes for installing the valve 17, the valve 17 comprises a stress plate 171, a spring 172, a round table plug 173, a valve blocking block 174 and a damping hole 175, two ends of the stress plate 171 are fixedly connected to the partition plate 21, one side of the stress plate 171 is fixedly connected with one end of the spring 172, the other end of the spring 172 is fixedly connected with one side of the round table plug 173, the damping hole 175 is formed in the middle of the round table plug 173, and the side surface of the round table plug 173 is tightly attached to the outer wall of the valve block 174; the damping hole 175 is formed in the middle of the round table plug 173, when a rescue tripod is used for enabling a rescue worker to descend, the roller 11 rotates anticlockwise, hydraulic oil rotates clockwise on two sides of the partition plate 21 under the guide effect of the guide plate 18, and when the hydraulic oil passes through the valve 17, the hydraulic oil flows back in the roller through the damping hole 175, when the speed of the roller 11 is too high, the hydraulic oil and the guide plate 18 have resistance effect due to limited flow passing through the damping hole 175 in unit time, the rotation speed of the roller 11 is limited by the resistance effect of the resistance block 19 on the hydraulic oil, and the effect of guaranteeing the safety of the worker is achieved; when the drum 11 rotates clockwise to drive a rescuer to rise, the hydraulic oil is driven to pass through the valve 17, the round table plug 173 is extruded, the spring 172 compresses the valve 17 to open to the other side of the partition plate 21, the hydraulic oil flows back to the cavity where the guide vane 18 is located through the valve 17 at the lower end of the partition plate 21, at the moment, the valve 17 loses the damping effect, the hydraulic oil flows back smoothly, the relative resistance between the guide vane 18 and the hydraulic oil is small, and the damping effect is lost when the rescuer is pulled up.

A non-slip mat is arranged on the handle 14 to increase friction force and prevent falling off.

Claims

1. The utility model provides a rescue tripod, includes footstock (1), support leg (2), manual capstan winch (3), wire rope (4), mount (5), pulley (6), its characterized in that: the utility model discloses a hydraulic oil filling device, including footstock (1), manual capstan (3), pulley (6) are installed to footstock (1) lower extreme swing joint, footstock (1) lower extreme fixedly connected with mount (5), manual capstan (3) are installed at the middle part fixed mounting of footstock (2), pulley (6) are walked around from manual capstan (3) to mount (5) lower extreme, the well lower part of manual capstan (3) is run through and is had initiative pole (8), the one end of rocking arm (7) has been welded to the right-hand member of initiative pole (8), the other end welding of rocking arm (7) has handle (14), pinion (9) have been cup jointed in the left side fixed of initiative pole (8), the outer edge meshing of pinion (9) has gear wheel (10), gear wheel (10) are fixed cup joint on cylinder (11), the middle part winding of cylinder (11) has wire rope (4), cylinder (11) activity cup joints on dead lever (12), the dead lever (12) is in the inner chamber (15) of capstan (3) have the inner chamber (15) to be welded with the partition plate (15) in the middle part, cylinder (15) is fixed in the inner chamber (15), a bearing II (16) is arranged between the partition plate (21) and the fixed rod (12), and a guide vane (18) fixedly sleeved on the fixed rod (12) is arranged on the right side of the partition plate (21).

2. A rescue tripod according to claim 1, wherein: two symmetrical resistance blocks (19) are arranged on two sides of the guide vane (18), and the resistance blocks (19) are arranged on the inner wall of the roller (11).

3. A rescue tripod according to claim 1, wherein: a gear ratio exists between the large gear (10) and the small gear (9).

4. A rescue tripod according to claim 1, wherein: the partition plate (21) is provided with symmetrical holes for installing the valve (17), the valve (17) comprises a stress plate (171), a spring (172), a round table plug (173), a valve blocking block (174) and a damping hole (175), two ends of the stress plate (171) are fixedly connected to the partition plate (21), one side fixedly connected with spring (172) of atress board (171), one side of the other end fixed connection round platform stopper (173) of spring (172), damping hole (175) have been seted up in the middle of round platform stopper (173), the side of round platform stopper (173) is hugged closely on the outer wall of valve group piece (174).

5. A rescue tripod according to claim 1, wherein: an anti-slip pad is arranged on the handle (14).