Fire-fighting emergency rescue breaking machine
By designing a pressure-bearing restraint and traction mechanism for a fire emergency rescue demolition machine, and using a combined lifting arm and inclined plate for stable lifting, the problem of rubble and rock collapse after the existing demolition machine breaks through the pressure structure has been solved, and safe layer-by-layer demolition and rescue has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU BAOANLAI PROTECTION TECH CO LTD
- Filing Date
- 2023-09-05
- Publication Date
- 2026-06-19
AI Technical Summary
After existing demolition machines break through the pressure-bearing structure, the fallen rubble and rocks are prone to collapse, making it difficult to guarantee the safety of trapped personnel.
A fire emergency rescue demolition machine was designed, including a pressure-bearing restraint mechanism, a traction mechanism, and a rubble-breaking mechanism. It uses a combined lifting arm and inclined plate to steadily lift rubble and stones layer by layer, and uses hydraulic components and a threaded screw system to realize the progressive extension and retraction of multiple sets of clamping frames to ensure stable demolition.
It enabled the safe demolition and lifting of fallen rubble and rocks, preventing collapses caused by changes in load-bearing capacity and ensuring the safe transfer of trapped personnel.
Smart Images

Figure CN117205464B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fire emergency rescue technology, specifically a fire emergency rescue demolition machine. Background Technology
[0002] Demolition tools are used by fire departments and highway rescue teams. They are used when there is an emergency need to break down gates and remove steel bars from railings. However, when existing demolition machines are used, once the main load-bearing structure is broken, the fallen rubble and rocks will collapse significantly, which limits their use.
[0003] Currently, demolition machines are divided into two types: impact type and shear type. These types of demolition equipment can only partially remove fallen rubble and rocks. However, once the pressure-bearing structure is broken, the stability of the fallen rubble and rocks will change, making it difficult to guarantee the personal safety of trapped personnel.
[0004] For emergency rescue of people trapped in collapsed rubble or rocks, the technical challenge that this invention aims to address is how to improve the ability of existing demolition machines to remove people buried deep in rubble or rocks layer by layer for rescue, while avoiding the problem of the rubble or rocks collapsing due to changes in pressure after layer-by-layer removal. Summary of the Invention
[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
[0006] Therefore, the technical solution adopted in this invention is as follows:
[0007] A fire emergency rescue demolition machine includes a pressure-bearing restraint mechanism, a traction mechanism mounted on the pressure-bearing restraint mechanism, and a rubble-breaking mechanism mounted on the traction mechanism. The pressure-bearing restraint mechanism includes an external end piece, a first and second lead screw threaded into two threaded sleeves inside the external end piece plate, two positioning sliders movably mounted on the outer ends of the first and second lead screws, a crossbeam fixedly mounted on the external end piece, a hydraulic component fixedly mounted in the internal plate of the external end piece, a support plate movably mounted on the end of a hydraulic sub-rod within the hydraulic component, and a nut threaded onto the hydraulic sub-rod. A gripping rod is movably mounted in the middle of the internal plate of the external end piece. The traction mechanism includes a main pressure beam rod mounted within the gripping rod, a sleeve fixedly mounted in the crossbeam by bolts, a clamping frame fixedly mounted at one end of the sleeve, and two rubble-breaking mechanisms mounted on both sides of the clamping frame. The rubble-breaking mechanism includes a clamp, two screws penetrating into the casing, an end post located inside the casing and fixed by a nut, a tension spring fixedly connected to the other end of the end post, a partition movably installed outside the main pressure beam, and an auxiliary pressure beam fixedly installed on the partition. The rubble-breaking mechanism includes three bases fixedly installed on the main pressure beam and two auxiliary pressure beams, two end shafts movably installed inside the bases, a lifting arm movably installed outside the end shafts, a binding bushing movably installed at the bottom of the lifting arm, three sliding bases movably installed in the middle clamps of the main pressure beam and two auxiliary pressure beams, an inclined plate movably installed between the lifting arm and the sliding bases, a pad installed inside the binding bushing, a screw sleeve connected inside the pad, and a cable movably installed inside the screw sleeve and penetrating into the casing, with the end of the cable away from the screw sleeve fixedly installed on the end of the tension spring away from the end post.
[0008] In a preferred embodiment, the present invention can be further configured such that the external end piece consists of a curved handle and a plate, and a transverse hole is provided in the middle of the plate, and the handle is adapted to pass through the transverse hole in the middle of the plate.
[0009] By adopting the above technical solution, the traction mechanism and the rubble-breaking mechanism are delivered along the gaps between the fallen rubble and stones using a handle that controls bending. This continues until the combined multiple lifting arms and inclined plates are close to the ground and the rubble and stones. At this point, the two constrained pads can be lifted under pressure and then lifted and broken together with the fallen rubble and stones.
[0010] In a preferred embodiment, the present invention can be further configured such that: cylindrical end seats are installed at the two ends of the first lead screw and the second lead screw away from the external end piece; the positioning slider has an overall Z-shaped structure; and the cylindrical end seats are adapted to penetrate into the inner cavity of the clamping column on the positioning slider.
[0011] By adopting the above technical solution, two positioning sliders are respectively movably installed between three adjacent clamping frames. When the first lead screw and the second lead screw are controlled to rotate, the two positioning sliders that are movably assembled by the first lead screw and the second lead screw can control the three clamping frames to extend in a progressive manner, so as to ensure that the rubble and stones are broken and lifted by a uniform constant force.
[0012] In a preferred embodiment, the present invention may be further configured such that: the middle of the main pressure beam and the two auxiliary pressure beams are each equipped with a clamp of the same specification, and the main pressure beam and the two auxiliary pressure beams are equipped with a gasket that bears pressure on the partition plate at the part away from the base.
[0013] By adopting the above technical solution, three sliding bases are movably installed on the clamps in the middle of the main pressure beam and the two auxiliary pressure beams. When the main pressure beam is pulled and extended by the hydraulic components, the two auxiliary pressure beams assembled through the partitions can be stretched in sequence, thus ensuring that the device can lift rubble and stones under constant pressure.
[0014] In a preferred embodiment, the present invention can be further configured such that: the clamping frame is U-shaped, and the two clamping plates of the clamping frame away from the sleeve are clamped on both sides of the base, and the two clamping plates of the clamping frame are fixed to the base by bolts.
[0015] By adopting the above technical solution, the clamp frame is fixedly installed on the base with bolts, and the two end shafts support the two adjacent sets of lifting arms. When the main pressure beam rod drives the sliding buckle base and the two adjacent sets of inclined plates to tilt and lift, the two sets of lifting arms can assist the tie position bushing and pad to perform stable pressure lifting operations on the rubble and stones.
[0016] In a preferred embodiment, the present invention can be further configured such that: both the lifting arm and the inclined plate are composed of two elliptical plates, and the binding bushing at the bottom of the lifting arm and the inclined plate is provided with a vertical hole constraining the pad.
[0017] By adopting the above technical solution, when the rubble and stones are lifted by the combined lifting arm and inclined plate under force, the lifting arm and inclined plate, which are lifted and broken to a sufficient gap, can lift the rubble and stones and ensure that the lifted rubble and stones receive sufficient stable support.
[0018] In a preferred embodiment, the present invention can be further configured such that: two guide rods constrained to the top of the inclined plate are installed inside the sliding base, and the rings in the middle of the two guide rods are movably installed on the clamps of the main pressure beam rod and the auxiliary pressure beam rod.
[0019] By adopting the above technical solution, two sets of inclined plates are movably installed on two guide rods inside the sliding base. At this time, after the ring buckle inside the sliding base is movably installed on the clamp, the two sets of inclined plates can continuously expand outward in coordination with the pressure of the sliding base, which can ultimately make the fallen rubble and stones stable to be lifted and broken.
[0020] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:
[0021] 1. This invention uses three combined, horizontally positioned sleeves and clamping frames, with symmetrically distributed clamps installed on both sides of the three clamping frames. Two positioning sliders limit and clamp adjacent sets of clamps. At this time, three bases installed on one main pressure beam and two auxiliary pressure beams provide sufficient bearing pressure for the lateral tilting of the three lifting arms. As the hydraulic sub-rods extend within the hydraulic components, driving the main pressure beam and two auxiliary pressure beams to gradually extend outwards, the three pushed sliding bases and three inclined plates movably installed on the three sliding bases can control the assembled multiple pads to bear pressure and lift different parts deep within the fallen rubble and rocks. This ensures the device can safely break up and lift the fallen rubble and rocks, allowing trapped personnel to be safely transferred outwards through the gaps created by the breaking up and lifting.
[0022] 2. This invention involves installing two tension springs inside the casing and fixing two end posts at one end of each spring. The two end posts, fixed to the inner wall of the casing by two screws, provide sufficient support for the elastic extension force of the tension springs. When the hydraulic components drive the main pressure beam and the two auxiliary pressure beams to return to their initial state, the two tension springs located in the inner cavity of the casing can drive the two cables and the screw sleeve to retract inward. At this time, the pads with threads installed outside the screw sleeves can drive the two raised pads to return to their initial state, so as to facilitate the operator to use the device to perform unstable lifting and demolition operations on the rubble and rocks that need to be demolished. Attached Figure Description
[0023] Figure 1 This is a schematic diagram illustrating the use of the present invention;
[0024] Figure 2 This is a bottom view diagram of the present invention;
[0025] Figure 3 This is a schematic diagram of the pressure-bearing restraint mechanism of the present invention;
[0026] Figure 4 This is a schematic diagram of the distribution of the pressure-bearing restraint mechanism of the present invention;
[0027] Figure 5 This is a schematic diagram showing the distribution of the second lead screw and the positioning slider of the present invention;
[0028] Figure 6This is a schematic diagram of the traction mechanism and the rubble-breaking mechanism of the present invention;
[0029] Figure 7 This is a schematic diagram of the traction mechanism of the present invention.
[0030] Figure 8 This is a cross-section of the main pressure beam of the present invention and a schematic diagram of its rubble-breaking mechanism.
[0031] Figure 9 This is a partial schematic diagram of the rubble-breaking mechanism of the present invention;
[0032] Figure 10 This is an enlarged schematic diagram of the cable and screw sleeve of the present invention;
[0033] Figure 11 This is an enlarged schematic diagram of the screw and end post of the present invention.
[0034] Figure label:
[0035] 100. Pressure-bearing restraint mechanism; 110. External end piece; 120. Cross frame; 130. Support plate; 140. Hydraulic component; 150. Nut; 160. First lead screw; 170. Second lead screw; 180. Positioning slider;
[0036] 200. Traction mechanism; 210. Main pressure beam; 220. Sleeve; 230. Clamping frame; 240. Fixture; 250. Screw; 260. End column; 270. Tension spring; 280. Partition plate; 290. Auxiliary pressure beam;
[0037] 300, rubble breaking mechanism; 310, base; 320, end shaft; 330, lifting arm; 340, clamping bushing; 350, inclined plate; 360, sliding base; 370, pad; 380, cable; 390, screw sleeve. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0039] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.
[0040] The following describes, with reference to the accompanying drawings, some embodiments of a fire emergency rescue demolition machine provided by the present invention.
[0041] Example 1:
[0042] Combination Figures 1-11As shown, the present invention provides a fire emergency rescue demolition machine, including a pressure-bearing restraint mechanism 100, a traction mechanism 200 installed on the pressure-bearing restraint mechanism 100, and a rubble-breaking mechanism 300 installed on the traction mechanism 200.
[0043] The pressure-bearing restraint mechanism 100 includes an external end piece 110, a crossbeam 120, a support plate 130, a hydraulic component 140, a nut 150, a first lead screw 160, a second lead screw 170, and a positioning slider 180. The traction mechanism 200 includes a main pressure beam 210, a sleeve 220, a clamping frame 230, a clamp 240, a screw 250, an end column 260, a tension spring 270, a partition plate 280, and an auxiliary pressure beam 290. The rubble-breaking mechanism 300 includes a base 310, an end shaft 320, a lifting arm 330, a binding bushing 340, an inclined plate 350, a sliding buckle base 360, a pad 370, a cable 380, and a screw sleeve 390.
[0044] Specifically, the first lead screw 160 and the second lead screw 170 are threadedly installed in two threaded sleeves inside the plate of the external end piece 110. Two positioning sliders 180 are respectively movably installed on the ends of the first lead screw 160 and the second lead screw 170. The cross frame 120 is fixedly installed on the external end piece 110. The hydraulic component 140 is fixedly installed in the plate inside the external end piece 110. The support plate 130 is movably installed on the end of the hydraulic sub-rod inside the hydraulic component 140. The nut 150 is threadedly installed on the hydraulic sub-rod. A gripping rod is movably installed in the middle of the plate inside the external end piece 110. The main pressure beam rod 210 is installed in the gripping rod. The sleeve 220 is fixedly installed in the cross frame 120 by bolts. The clamping frame 230 is fixedly installed at one end of the sleeve 220. Two clamps 240 are respectively installed on both sides of the clamping frame 230. Two screws 250 penetrate into the inside of the sleeve 220. The end post 260, fixed by the nut 150, is located inside the sleeve 220. The tension spring 270 is fixedly connected. At the other end of end post 260, partition plate 280 is movably installed outside main pressure beam 210, auxiliary pressure beam 290 is fixedly installed on partition plate 280, three bases 310 are respectively fixedly installed on main pressure beam 210 and two auxiliary pressure beams 290, two end shafts 320 are movably installed inside bases 310, lifting arm 330 is movably installed outside end shaft 320, and clamping bushing 340 is movably installed at the bottom of lifting arm 330. Three sliding bases 360 are... The main pressure beam 210 and the two auxiliary pressure beams 290 are movably installed in the clamps in the middle. The inclined plate 350 is movably installed between the lifting arm 330 and the sliding base 360. The pad 370 is installed inside the tension sleeve 340. The threaded sleeve 390 is connected inside the pad 370. The cable 380, which passes through the sleeve 220, is movably installed inside the threaded sleeve 390, and the end of the cable 380 away from the threaded sleeve 390 is fixedly installed on the end of the tension spring 270 away from the end post 260.
[0045] By using symmetrically distributed clamps 240 installed on both sides of the three clamping frames 230, and cooperating with two positioning sliders 180 to limit and clamp adjacent sets of clamps 240, the three bases 310 installed on one main pressure beam 210 and two auxiliary pressure beams 290 respectively will provide sufficient bearing pressure for the lateral tilting of the three sets of lifting arms 330. As the hydraulic sub-rods in the hydraulic component 140 extend and drive the main pressure beam 210 and two auxiliary pressure beams 290 to gradually extend outward, the three sliding bases 360 that are pushed and the three sets of inclined plates 350 that are movably installed on the three sliding bases 360 can control the assembled multiple The pad 370 applies pressure to different parts of the collapsed rubble and rocks to ensure safe demolition and lifting of the collapsed rubble and rocks. When the hydraulic component 140 drives the main pressure beam 210 and the two auxiliary pressure beams 290 to return to their initial state, the two tension springs 270 located in the inner cavity of the sleeve 220 can drive the two cables 380 and the screw sleeve 390 to retract inward. At this time, the pad 370, which is threaded outside the screw sleeve 390, can drive the two lifted pads 370 to return to their initial state, so that the operator can use the device to perform multi-unstable and stable lifting demolition operations on the rubble and rocks that need to be demolished.
[0046] Example 2:
[0047] Combination Figure 3 and Figure 8 As shown, based on Embodiment 1, the external end piece 110 is composed of a curved handle and a plate, and a horizontal hole is opened in the middle of the plate. The handle is adapted to pass through the horizontal hole in the middle of the plate. The two ends of the first lead screw 160 and the second lead screw 170 away from the external end piece 110 are equipped with cylindrical end seats. The positioning slider 180 has a Z-shaped structure, and the cylindrical end seat is adapted to pass through the inner cavity of the clamping column on the positioning slider 180.
[0048] The traction mechanism 200 and the rubble-breaking mechanism 300 are controlled by a bendable handle and delivered along the gaps between the fallen rubble and rocks until the combined multi-set lifting arms 330 and inclined plates 350 are close to the ground and the rubble and rocks. At this point, the two constrained pads 370 can be lifted and broken up together with the fallen rubble and rocks after being lifted under pressure. When the first lead screw 160 and the second lead screw 170 are rotated, the two positioning sliders 180, which are movably assembled with the first lead screw 160 and the second lead screw 170, can control the three clamping frames 230 to extend in a progressive manner until the device can selectively adjust the lifting within the gaps between the fallen rubble and rocks to ensure the safe rescue of trapped personnel.
[0049] Example 3:
[0050] Combination Figures 7-8As shown, based on Embodiment 1, the main pressure beam 210 and the two auxiliary pressure beams 290 are all equipped with clamps of the same specifications in the middle, and the main pressure beam 210 and the two auxiliary pressure beams 290 are equipped with gaskets that bear pressure on the partition plate 280 at the parts away from the base. The clamp frame 230 has a U-shaped structure, and the two clamps of the clamp frame 230 away from the sleeve 220 are clamped on both sides of the base 310, and the two clamps of the clamp frame 230 are fixed to the base 310 by bolts.
[0051] By using three sliding bases 360 movably mounted on the clamps in the middle of the main pressure beam 210 and two auxiliary pressure beams 290, when the main pressure beam 210 is extended by the hydraulic component 140, the two auxiliary pressure beams 290, which are sequentially assembled through the partition 280, can be extended in sequence under force. This ensures that the device can lift rubble and rocks with constant pressure. In conjunction with the two end shafts 320, the two sets of lifting arms 330 are supported. As the main pressure beam 210 drives the sliding bases 360 and the two sets of inclined plates 350 to tilt and lift, the two sets of lifting arms 330 can assist the anchor bushings 340 and the pads 370 in applying stable pressure to lift the rubble and rocks, ensuring that enough gaps can be broken open inside the rubble and rocks for rescue.
[0052] Example 4:
[0053] Combination Figures 8-11 As shown, based on Embodiment 1, both the lifting arm 330 and the inclined plate 350 are composed of two elliptical plates. The clamping bushing 340, which is assembled at the bottom of the lifting arm 330 and the inclined plate 350, has a vertical hole that constrains the pad 370. The sliding base 360 has two guide rods that constrain the top of the inclined plate 350. The rings in the middle of the two guide rods are movably installed on the clamps of the main pressure beam 210 and the auxiliary pressure beam 290.
[0054] By movably mounting two sets of inclined plates 350 onto two guide rods inside the sliding base 360, and with the inner ring of the sliding base 360 movably mounted on the clamp, the two sets of inclined plates 350 can continuously expand outward in conjunction with the pressure applied by the sliding base 360. This allows the fallen rubble and stones to be stably lifted and broken. When the combined lifting arm 330 and inclined plate 350 are under force to lift the rubble and stones, the lifting arm 330 and inclined plate 350, having been lifted and broken to a sufficient gap, can raise the lifted rubble and stones and ensure that the lifted rubble and stones receive sufficient stable support, thereby preventing the rubble and stones from collapsing due to the device losing its force.
[0055] The working principle and usage process of this invention are as follows: The end post 260 is pre-fixed to one end of the tension spring 270. Then, the bottom end of the cable 380 is fixed to the other end of the tension spring 270. Next, the end post 260 located inside the main pressure beam 210 is fixed using the screw 250. At this time, the other end of the cable 380, which extends through to the outside of the main pressure beam 210, will extend and connect to the screw hole inside the pad 370 with the threaded sleeve 390. The pad 370 will then extend through the vertical hole in the middle of the clamping bushing 340. The clamping bushing 340 will be movably installed in the bottom end of the combined lifting arm 330 and the inclined plate 350, adjacent to each other. The top end of the lifting arm 330 will be movably installed on the two end posts of the end shaft 320, and the top of the inclined plate 350... The end rod is movably mounted on the end rod inside the sliding base 360. At this time, the horizontally symmetrically distributed base 310 and sliding base 360 clamp the horizontally placed main pressure beam 210. The base 310 is fixedly mounted on the outside of the main pressure beam 210, while the sliding base 360 is movably mounted on the main pressure beam 210. The two end shafts 320 movably mounted inside the base 310 provide lateral support for the two lifting arms 330. The two ends of the clamping frame 230 are fixedly mounted on both sides of the base 310 by two bolts. At the same time, the two clamps 240 mounted on the two adjacent clamping frames 230 limit and clamp the sliders at both ends of the positioning slider 180. The first lead screw 160 mounted on the two positioning sliders 180 and the positioning... The slider 180 is threadedly installed inside two threaded sleeves within the outer end piece 110 plate. The ends of the threaded rods of the first lead screw 160 and the positioning slider 180 extend to the outside of the plate and are close to the support plate 130. Then, the sleeve 220 is inserted into the crossbeam 120 and secured with bolts. Next, the hydraulic component 140 is fixedly installed within the plate of the outer end piece 110. At this time, the support plate 130 is fixedly installed by the nut 150 onto the threaded rod of the hydraulic sub-rod within the hydraulic component 140. The gripping rod outside the outer end piece 110 extends into the support plate 130, and the end of the main pressure beam rod 210 is installed within the gripping rod. During use, the operator needs to grip the outside of the outer end piece 110. The curved handle guides the assembled traction mechanism 200 and rubble-breaking mechanism 300 into the gaps of the broken stones or rubble. The operator then adjusts the first lead screw 160 and the second lead screw 170 until the two constrained positioning sliders 180 control the two clamping frames 230 and their external clamps 240 to extend and position themselves deeper into the gap. At this point, the binding bushings 340 installed on the outer ends of the two lifting arms 330 will press the two constrained pads 370 against the inner walls of the rubble and stones. Next, the hydraulic component 140 is controlled to extend until its internal hydraulic rod extends outward, causing the support plate 130, main pressure beam 210, two partitions 280, and two auxiliary pressure beams 290 to extend outward.At this point, the device can apply pressure and lift to different locations within the rubble and rocks. During this lifting process, those trapped inside the rubble or rocks can be comprehensively lifted, preventing existing demolition equipment from applying localized pressure and causing the rubble or rocks to collapse due to unstable support.
[0056] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A fire emergency rescue forcible entry machine characterized by, It includes a pressure-bearing restraint mechanism (100), a traction mechanism (200) mounted on the pressure-bearing restraint mechanism (100), and a rubble-breaking mechanism (300) mounted on the traction mechanism (200). The pressure-bearing restraint mechanism (100) includes an external end piece (110), a first lead screw (160) and a second lead screw (170) threadedly installed in two screw sleeves inside the plate of the external end piece (110), and two positioning sliders (180) respectively movably installed on the outer ends of the first lead screw (160) and the second lead screw (170). A handle is movably installed in the middle of the inner plate of the external end piece (110), a cross frame (120) fixedly installed on the external end piece (110), a hydraulic component (140) fixedly installed in the inner plate of the external end piece (110), a support plate (130) movably installed on the end of the hydraulic sub-rod inside the hydraulic component (140), and a nut (150) threadedly installed on the hydraulic sub-rod. The external end piece (110) is composed of a curved handle and a plate, and a transverse hole is opened in the middle of the plate, and the handle is adapted to pass through the transverse hole in the middle of the plate. The positioning slider (180) has an overall Z-shaped structure; The traction mechanism (200) includes a main pressure beam (210) installed in the grip bar, a sleeve (220) fixedly installed in the cross frame (120) by bolts, a clamping frame (230) fixedly installed at one end of the sleeve (220), two clamps (240) respectively installed on both sides of the clamping frame (230), two screws (250) penetrating into the sleeve (220), an end post (260) located inside the sleeve (220) and fixed by a nut (150), a tension spring (270) fixedly connected to the other end of the end post (260), a partition (280) movably installed outside the main pressure beam (210), and an auxiliary pressure beam (290) fixedly installed on the partition (280). The main pressure beam (210) and the two auxiliary pressure beams (290) are each equipped with a clamp of the same specification in the middle, and the main pressure beam (210) and the two auxiliary pressure beams (290) are equipped with a gasket that bears pressure on the partition plate (280) at the part away from the base. The two clamps (240) will limit and hold the sliders at both ends of the positioning slider (180); The rubble-breaking mechanism (300) includes three bases (310), two end shafts (320) movably installed inside the bases (310), a lifting arm (330) movably installed outside the end shafts (320), a retaining bushing (340) movably installed at the bottom of the lifting arm (330), three sliding bases (360) movably installed in the middle clamps of the main pressure beam (210) and the two auxiliary pressure beams (290), and a sliding base (360) movably installed between the lifting arm (330) and the sliding bases (360). The inclined plate (350), the pad (370) installed inside the bushing (340), the threaded sleeve (390) connected inside the pad (370), and the cable (380) movably installed inside the threaded sleeve (390) and extending into the sleeve (220), with the end of the cable (380) away from the threaded sleeve (390) fixedly installed on the end of the tension spring (270) away from the end post (260), the main pressure beam (210) drives the sliding buckle base (360) and the two adjacent inclined plates (350) to tilt and lift to the side; The clamping frame (230) has a U-shaped structure, and the two clamping plates of the clamping frame (230) away from the sleeve (220) are clamped on both sides of the base (310), and the two clamping plates of the clamping frame (230) are fixed to the base (310) by bolts.
2. A fire emergency rescue breaking machine according to claim 1, characterized in that, The first lead screw (160) and the second lead screw (170) are equipped with cylindrical end seats at their two ends away from the external end piece (110), and the cylindrical end seats are adapted to penetrate into the inner cavity of the clamping column on the positioning slider (180).
3. A fire emergency rescue breaking machine according to claim 1, characterized in that, The lifting arm (330) and the inclined plate (350) are both composed of two elliptical plates, and the binding bushing (340) at the bottom of the lifting arm (330) and the inclined plate (350) is provided with a vertical hole that constrains the pad (370).
4. A fire emergency rescue breaking machine according to claim 1, characterized in that, The sliding base (360) has two guide rods inside that are constrained to the top of the inclined plate (350), and the rings in the middle of the two guide rods are movably installed on the clamps of the main pressure beam (210) and the auxiliary pressure beam (290).
Citation Information
Patent Citations
Surface support member extracting tool
JP1997029661A
HYDRAULIC EXPANDER
RU125117U1