A fire rescue and demolition type hydraulic expander

Abstract

The present invention discloses a fire rescue and rescue demolition hydraulic expander, comprising a storage device and a hydraulic expansion device. The storage device comprises a box body, a cover body is rotatably connected to the bottom of the side wall of the box body, and a buckle lock is provided on the top of the cover body. The hydraulic expansion device comprises a mounting seat, a movable seat is slidably mounted on the upper end of the mounting seat, a body is inserted into the upper end of the movable seat, and the body is inserted into the upper end of the mounting seat. The body is located on the side wall inside the mounting seat and is rotatably mounted with a first mounting plate. Two symmetrically arranged first hydraulic cylinders are installed on the inner top wall of the mounting seat. The present invention combines multiple demolition methods such as cutting, expanding, rotating, and pulling, and can perform targeted rescue and demolition according to different actual demolition needs. It has high flexibility in use, is easy to carry, and is convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic expanders, and in particular to a firefighting and rescue-type hydraulic expander. Background Art

[0002] Fire rescue demolition hydraulic expander is an essential demolition tool for firefighting, traffic police and other rescue departments. The hydraulic expander is used in conjunction with a motor pump, electric pump or manual pump to quickly rescue victims trapped in a confined environment or rescue victims in a dangerous environment.

[0003] Patent publication number CN217489568U, titled "Long-Life Breakaway Hydraulic Expander," discloses a long-life breakaway hydraulic expander comprising an expansion head, a hydraulic cylinder assembly, expansion arms, a limit assembly, and a controller. The expansion head comprises a support base, a movable block, a guide rod, and a connecting rod. One end of the guide rod is secured to the plug rod of the hydraulic cylinder assembly, while the other end passes through the central through-hole of the support base and is secured to the movable block. Two expansion arms are respectively positioned on the left and right sides of the movable block and hingedly connected to one end of the connecting rod. This patent only provides a relatively conventional expansion function, a relatively simple function, limited flexibility, and inconvenient use. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a fire rescue and demolition type hydraulic expander.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fire rescue and demolition type hydraulic expander, comprising a storage device and a hydraulic expansion device, wherein the storage device comprises a box body, the bottom of the side wall of the box body is rotatably connected to a cover body, the top of the cover body is provided with a buckle lock, the hydraulic expansion device, the hydraulic expansion device comprises a mounting seat, the upper end of the mounting seat is slidably sleeved with a movable seat, the upper end of the movable seat is plugged with an organic body, the organic body is plugged into the upper end of the mounting seat, the organic body is located on the side wall inside the mounting seat and is rotatably sleeved with a first mounting plate, and the inner top wall of the mounting seat is provided with symmetrically arranged Two first hydraulic cylinders, the telescopic end of the first hydraulic cylinder is fixedly connected to the upper end of the first mounting plate, the upper end of the body is provided with an expansion piece, the side wall of the body near the upper end is provided with four connecting mechanisms connected to the movable seat, the side wall of the movable seat near the upper end is symmetrically provided with two mounting grooves, the inside of each of the two mounting grooves is provided with a rotating mechanism connected to the body, the side wall of the mounting seat is symmetrically provided with two supporting mechanisms, the side wall of the mounting seat is symmetrically provided with two receiving grooves, and the inside of each of the two receiving grooves is provided with an operating mechanism.

[0007] As a further improvement of the present invention, the expansion member includes a rotatable connection to the upper end of the body, an installation cavity is provided inside the body, a second mounting plate is provided inside the mounting cavity, a second hydraulic cylinder is fixedly installed on the inner bottom wall of the mounting cavity, the telescopic end of the second hydraulic cylinder is fixedly connected to the lower end of the second mounting plate, two symmetrical third hydraulic cylinders are fixedly installed on the inner top wall of the mounting cavity, the telescopic end of the third hydraulic cylinder is fixedly connected to the upper end of the second mounting plate, the upper end of the second mounting plate is fixedly connected to a hydraulic rod, the upper end of the hydraulic rod passes through the inner top wall of the mounting cavity and is fixedly connected to a moving block, the upper end of the moving block is rotatably connected to two symmetrically arranged clamp heads, the side walls of the two clamp heads are rotatably connected to connecting rods, and the end of the connecting rod away from the clamp head is rotatably connected to the upper end of the body.

[0008] As a further improvement of the present invention, the connecting mechanism includes a connecting block, a connecting bolt is provided through the upper end of the body, the connecting bolt is threadedly connected to the connecting block, an annular connecting groove is provided on the side wall of the movable seat, and the connecting block is engaged inside the annular connecting groove.

[0009] As a further improvement of the present invention, the rotating mechanism includes a rotating shaft arranged inside the mounting groove, both ends of the rotating shaft are rotatably connected to the inner wall of the mounting groove, a worm wheel and a gear are fixedly sleeved on the rotating shaft, and an annular tooth groove that cooperates with the gear is provided on the side wall of the body, the gear extends out of the mounting groove and engages with the annular tooth groove, a motor is fixedly installed on the inner bottom wall of the mounting groove, and the output shaft of the motor is fixedly connected to a worm, and the end of the worm away from the motor is rotatably connected to the inner top wall of the mounting groove, and the worm is engaged with the worm wheel.

[0010] As a further improvement of the present invention, the supporting mechanism includes a fixed block fixedly connected to the side wall of the mounting seat, a threaded sleeve is rotatably connected to the side wall of the fixed block, a threaded rod is threadedly inserted at one end of the threaded sleeve away from the fixed block, and a pad is fixedly connected to one end of the threaded rod away from the threaded sleeve.

[0011] As a further improvement of the present invention, the operating mechanism includes a handle rotatably connected to the inside of the storage slot, and a button switch is installed on the top of the handle.

[0012] As a further improvement of the present invention, a handle is provided on the top of the box body, and the handle is made of plastic.

[0013] As a further improvement of the present invention, two shoulder straps are fixedly connected to the side walls of the box body.

[0014] As a further improvement of the present invention, two piston cylinders are installed on the inner top wall of the mounting cavity, and both piston cylinders are provided with piston rods. The end of the piston rod away from the piston cylinder is fixedly connected to the upper end of the second mounting plate, and nozzles are installed on the side walls of the two pliers heads. The side walls of the piston cylinders are connected with an output pipe and a suction pipe, and both the output pipe and the suction pipe are provided with a one-way valve. A storage box is provided on the inner bottom wall of the mounting seat, and the suction pipe is connected to the storage box.

[0015] Beneficial effects of the present invention:

[0016] By arranging the storage device and the hydraulic expansion device, the hydraulic expansion device can be stored inside the box body, thereby being convenient to carry and to take out for use.

[0017] By setting up an expansion piece and starting the extension of the second hydraulic cylinder, the second mounting plate can be driven to move up, and the moving block can be driven to move up by the hydraulic rod, so that the two clamp heads can be rotated and opened, realizing the function of expansion and demolition. By starting the extension of the third hydraulic cylinder, the second mounting plate can be driven to move down, and the moving block can be driven to move down by the hydraulic rod, so that the two clamp heads can be rotated and merged, realizing the function of bite cutting.

[0018] By setting up a rotating mechanism, starting the motor to drive the worm to rotate, the worm is engaged with the worm wheel, which can drive the rotating shaft to rotate, and the rotating shaft drives the gear to rotate. Since the gear is engaged with the annular tooth groove, it can drive the body to rotate, and then drive the pliers head to rotate, which can realize the function of rotary demolition.

[0019] By setting a mounting seat, a movable seat, a first hydraulic cylinder, and a supporting mechanism, when the object to be demolished needs to be pulled outward, the object is clamped by the pliers head, and the threaded rod is rotated and extended, and supported by a pad, the first hydraulic cylinder is started to extend, and the movable seat is driven to move toward the mounting seat, thereby contracting the body and pulling the object to be demolished outward.

[0020] By arranging a piston rod, a piston cylinder and a nozzle, the lubricating liquid is sprayed onto the demolition target through the nozzle, thereby reducing the friction between the subsequent personnel and the target object when moving out, reducing secondary damage, and when the second mounting plate moves downward, it can drive the piston rod to move downward, and use the negative pressure to suck the lubricating liquid in the storage box into the piston cylinder through the suction pipe for storage, so that it can meet the next use.

[0021] The present invention integrates multiple demolition methods such as cutting, expanding, rotating and pulling, and can perform targeted rescue and demolition according to different actual demolition needs. It has high flexibility in use, is easy to carry and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a structural schematic diagram of a storage device for a fire rescue and demolition type hydraulic expander proposed by the present invention;

[0023] Figure 2 This is a structural schematic diagram of a hydraulic expansion device of a fire rescue and demolition type hydraulic expander proposed by the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the connection structure of the body and connecting bolts of a fire rescue and demolition type hydraulic expander proposed by the present invention;

[0026] Figure 5 This is a structural schematic diagram of a second embodiment of a hydraulic expansion device of a fire rescue and demolition type hydraulic expander proposed by the present invention.

[0027] In the figure: 1 box body, 2 cover body, 3 buckle lock, 4 handle, 5 shoulder strap, 6 mounting base, 7 storage slot, 8 handle, 9 button switch, 10 fixed block, 11 threaded sleeve, 12 threaded rod, 13 pad, 14 first mounting plate, 15 body, 16 first hydraulic cylinder, 17 movable seat, 18 mounting cavity, 19 second hydraulic cylinder, 20 second mounting plate, 21 third hydraulic cylinder, 22 hydraulic rod, 23 connecting bolt, 24 connecting rod, 25 clamp head, 26 moving block, 27 connecting block, 28 annular connecting groove, 29 mounting groove, 30 motor, 31 rotating shaft, 32 worm gear, 33 worm, 34 gear, 35 annular tooth groove, 36 storage box, 37 suction pipe, 38 piston rod, 39 piston cylinder, 40 output pipe, 41 nozzle. DETAILED DESCRIPTION

[0028] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] Reference Figures 1-4A fire rescue and demolition type hydraulic expander includes a storage device and a hydraulic expansion device. The storage device includes a box body 1. The top of the box body 1 is provided with a handle 4, the handle 4 is made of plastic, and two straps 5 are fixedly connected to the side wall of the box body 1. The bottom of the side wall of the box body 1 is rotatably connected to a cover body 2, and the top of the cover body 2 is provided with a buckle lock 3, a hydraulic expansion device, and the hydraulic expansion device includes a mounting seat 6. The upper end of the mounting seat 6 is slidably sleeved with a movable seat 17, and the upper end of the movable seat 17 is plugged with an organic body 15. The organic body 15 is inserted into the upper end of the mounting seat 6. The organic body 15 is located on the side wall inside the mounting seat 6 and is rotatably sleeved with a first mounting plate 14. Two symmetrically arranged first hydraulic cylinders 16 are installed on the inner top wall of the mounting seat 6. The telescopic end of the first hydraulic cylinder 16 is fixedly connected At the upper end of the first mounting plate 14, an expansion piece is provided at the upper end of the body 15, and four connecting mechanisms connected to the movable seat 17 are provided on the side wall of the body 15 near the upper end. The connecting mechanism includes a connecting block 27, and a connecting bolt 23 is penetrated at the upper end of the body 15. The connecting bolt 23 is threadedly connected to the connecting block 27. An annular connecting groove 28 is provided on the side wall of the movable seat 17, and the connecting block 27 is engaged with the inside of the annular connecting groove 28. Two mounting grooves 29 are symmetrically provided on the side wall of the movable seat 17 near the upper end, and a rotating mechanism connected to the body 15 is provided inside the two mounting grooves 29. Two supporting mechanisms are symmetrically provided on the side wall of the mounting seat 6, and two receiving grooves 7 are symmetrically provided on the side wall of the mounting seat 6 near the lower end, and an operating mechanism is provided inside the two receiving grooves 7.

[0031] In the present invention, the expansion member includes a rotatable connection to the upper end of the body 15, an installation cavity 18 is provided inside the body 15, and a second mounting plate 20 is provided inside the mounting cavity 18. A second hydraulic cylinder 19 is fixedly installed on the inner bottom wall of the mounting cavity 18, and the telescopic end of the second hydraulic cylinder 19 is fixedly connected to the lower end of the second mounting plate 20. Two symmetrical third hydraulic cylinders 21 are fixedly installed on the inner top wall of the mounting cavity 18, and the telescopic end of the third hydraulic cylinder 21 is fixedly connected to the upper end of the second mounting plate 20. The upper end of the second mounting plate 20 is fixedly connected to a hydraulic rod 22, and the upper end of the hydraulic rod 22 passes through the inner top wall of the mounting cavity 18 and is fixedly connected to a moving block 26. The upper end of the moving block 26 is rotatably connected to two symmetrically arranged clamp heads 25, and the side walls of the two clamp heads 25 are rotatably connected to connecting rods 24. The end of the connecting rod 24 away from the clamp heads 25 is rotatably connected to the upper end of the body 15.

[0032] The specific rotating mechanism includes a rotating shaft 31 arranged inside the mounting groove 29, both ends of the rotating shaft 31 are rotatably connected to the inner wall of the mounting groove 29, a worm gear 32 and a gear 34 are fixedly sleeved on the rotating shaft 31, and an annular tooth groove 35 that cooperates with the gear 34 is provided on the side wall of the body 15. The gear 34 extends out of the mounting groove 29 and engages with the annular tooth groove 35. A motor 30 is fixedly installed on the inner bottom wall of the mounting groove 29, and the output shaft of the motor 30 is fixedly connected to a worm 33. The end of the worm 33 away from the motor 30 is rotatably connected to the inner top wall of the mounting groove 29, and the worm 33 engages with the worm wheel 32.

[0033] The specific supporting mechanism includes a fixed block 10 fixedly connected to the side wall of the mounting seat 6, and a threaded sleeve 11 is rotatably connected to the side wall of the fixed block 10. A threaded rod 12 is threadedly inserted at the end of the threaded sleeve 11 away from the fixed block 10, and a pad 13 is fixedly connected to the end of the threaded rod 12 away from the threaded sleeve 11. The threaded rod 12 is rotated and extended, and can be supported by the pad 13.

[0034] The specific operating mechanism includes a handle 8 that is rotatably connected to the inside of the storage slot 7. A button switch 9 is installed on the top of the handle 8. When holding the handle 8, the button switch 9 can be easily operated. It is convenient and practical, and the handle 8 can be stored inside the storage slot 7.

[0035] When the present invention is used, the handle 8 is held and extended, and the second mounting plate 20 is driven upward by activating the second hydraulic cylinder 19, and the moving block 26 is driven upward by the hydraulic rod 22, so that the two pliers heads 25 can be rotated and opened to achieve the expansion and demolition function. By activating the third hydraulic cylinder 21 and extending it, the second mounting plate 20 can be driven downward, and the moving block 26 is driven downward by the hydraulic rod 22, so that the two pliers heads 25 can be rotated and merged to achieve the bite cutting function.

[0036] The starting motor 30 drives the worm 33 to rotate. Since the worm 33 is engaged with the worm wheel 32, the rotating shaft 31 can be driven to rotate, and the gear 34 is driven to rotate through the rotating shaft 31. Since the gear 34 is engaged with the annular tooth groove 35, the body 15 can be driven to rotate, and the pliers head 25 can be driven to rotate, thereby realizing the function of rotary demolition; when the demolished object needs to be pulled outward, the object is clamped by the pliers head 25, and the threaded rod 12 is rotated and extended, and supported by the pad 13, the first hydraulic cylinder 16 is started to extend, driving the movable seat 17 to move toward the mounting seat 6, thereby realizing the contraction of the body 15, and the object to be demolished can be pulled outward.

[0037] Example 2

[0038] Reference Figure 5, this embodiment is superior to the first embodiment in that two piston cylinders 39 are installed on the inner top wall of the mounting cavity 18 of this embodiment, and piston rods 38 are provided on both piston cylinders 39. One end of the piston rod 38 away from the piston cylinder 39 is fixedly connected to the upper end of the second mounting plate 20, and nozzles 41 are installed on the side walls of the two pliers 25. The side walls of the piston cylinder 39 are connected to the output pipe 40 and the suction pipe 37. Both the output pipe 40 and the suction pipe 37 are provided with a one-way valve. A storage box 36 is provided on the inner bottom wall of the mounting seat 6, and the suction pipe 37 is connected to the storage box 36. The lubricating liquid is stored in the storage box 36. When the second mounting plate 20 is opened, the lubricating liquid is stored in the storage box 36. When the mounting plate 20 moves up, the pliers head 25 opens. At this time, the upward movement of the second mounting plate 20 drives the piston rod 38 to move, and then the piston rod 38 squeezes the piston cylinder 39, so that the lubricating fluid inside the piston cylinder 39 is squeezed out to the nozzle 41 through the output pipe 40, and the lubricating fluid is sprayed onto the demolition target through the nozzle 41, thereby reducing the friction between the subsequent personnel and the target object when moving out, reducing secondary damage, and when the second mounting plate 20 moves down, it can drive the piston rod 38 to move down, and use the negative pressure to suck the lubricating fluid in the storage box 36 into the piston cylinder 39 through the suction pipe 37 for storage, so that it can meet the next use.

[0039] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fire rescue and demolition type hydraulic expander, characterized in that: The invention comprises a storage device and a hydraulic expansion device, wherein the storage device comprises a box body (1), the bottom of the side wall of the box body (1) is rotatably connected to a cover body (2), the top of the cover body (2) is provided with a buckle lock (3), the hydraulic expansion device comprises a mounting seat (6), the upper end of the mounting seat (6) is slidably sleeved with a movable seat (17), the upper end of the movable seat (17) is plugged with a body (15), the body (15) is plugged into the upper end of the mounting seat (6), the body (15) is located on the side wall inside the mounting seat (6) and is rotatably sleeved with a first mounting plate (14), two symmetrically arranged first hydraulic cylinders (16) are installed on the inner top wall of the mounting seat (6), and the telescopic ends of the first hydraulic cylinders (16) are fixedly connected to the mounting seat (6). The upper end of the first mounting plate (14) is provided with an expansion piece at the upper end of the body (15), and the side wall of the body (15) near the upper end is provided with four connection mechanisms connected to the movable seat (17), and the side wall of the movable seat (17) near the upper end is symmetrically provided with two mounting grooves (29), and the inside of the two mounting grooves (29) is provided with a rotation mechanism connected to the body (15), and the side wall of the mounting seat (6) is symmetrically provided with two supporting mechanisms, and the side wall of the mounting seat (6) near the lower end is symmetrically provided with two receiving grooves (7), and the inside of the two receiving grooves (7) is provided with an operating mechanism, and the inside of the body (15) is provided with a mounting cavity (18), and the inside of the mounting cavity (18) is provided with a second mounting plate (20) A second hydraulic cylinder (19) is fixedly installed on the inner bottom wall of the installation cavity (18), and the telescopic end of the second hydraulic cylinder (19) is fixedly connected to the lower end of the second installation plate (20). The upper end of the second installation plate (20) is fixedly connected to a hydraulic rod (22). The upper end of the hydraulic rod (22) passes through the inner top wall of the installation cavity (18) and is fixedly connected to a moving block (26). The upper end of the moving block (26) is rotatably connected to two symmetrically arranged clamp heads (25). The side walls of the two clamp heads (25) are rotatably connected to connecting rods (24). The end of the connecting rod (24) away from the clamp heads (25) is rotatably connected to the upper end of the body (15). Two pistons are installed on the inner top wall of the installation cavity (18). Cylinder (39), two piston cylinders (39) are provided with piston rods (38), one end of the piston rod (38) away from the piston cylinder (39) is fixedly connected to the upper end of the second mounting plate (20), and nozzles (41) are installed on the side walls of the two pliers heads (25). The side walls of the piston cylinder (39) are connected to an output pipe (40) and a suction pipe (37), and the output pipe (40) and the suction pipe (37) are both provided with a one-way valve. A storage box (36) is provided on the inner bottom wall of the mounting seat (6), and the suction pipe (37) is connected to the storage box (36), wherein the storage box (36) stores lubricating liquid inside, and the lubricating liquid inside the piston cylinder (39) is squeezed into the nozzle (41) through the output pipe (40).

2. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: Two symmetrical third hydraulic cylinders (21) are fixedly mounted on the inner top wall of the mounting cavity (18), and the telescopic ends of the third hydraulic cylinders (21) are fixedly connected to the upper end of the second mounting plate (20).

3. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: The connecting mechanism includes a connecting block (27), a connecting bolt (23) is provided through the upper end of the body (15), the connecting bolt (23) is threadedly connected to the connecting block (27), an annular connecting groove (28) is provided on the side wall of the movable seat (17), and the connecting block (27) is engaged inside the annular connecting groove (28).

4. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: The rotating mechanism includes a rotating shaft (31) arranged inside the mounting groove (29), both ends of the rotating shaft (31) are rotatably connected to the inner wall of the mounting groove (29), a worm wheel (32) and a gear (34) are fixedly sleeved on the rotating shaft (31), a side wall of the machine body (15) is provided with an annular tooth groove (35) that cooperates with the gear (34), the gear (34) extends out of the mounting groove (29) and meshes with the annular tooth groove (35), a motor (30) is fixedly mounted on the inner bottom wall of the mounting groove (29), an output shaft of the motor (30) is fixedly connected to a worm (33), an end of the worm (33) away from the motor (30) is rotatably connected to the inner top wall of the mounting groove (29), and the worm (33) meshes with the worm wheel (32).

5. The fire rescue and demolition type hydraulic expander according to claim 1, characterized in that: The supporting mechanism comprises a fixed block (10) fixedly connected to the side wall of the mounting seat (6); a threaded sleeve (11) is rotatably connected to the side wall of the fixed block (10); a threaded rod (12) is threadedly inserted at one end of the threaded sleeve (11) away from the fixed block (10); and a cushion block (13) is fixedly connected to one end of the threaded rod (12) away from the threaded sleeve (11).

6. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: The operating mechanism comprises a handle (8) rotatably connected to the interior of the storage slot (7), and a button switch (9) is installed on the top of the handle (8).

7. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: A handle (4) is provided on the top of the box body (1), and the handle (4) is made of plastic.

8. The fire rescue and demolition hydraulic expander according to claim 1, characterized in that: Two shoulder straps (5) are fixedly connected to the side walls of the box body (1).

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