CN121716211A - Dry-cutting dust-absorbing concrete cutting machine - Google Patents
Dry-cutting dust-absorbing concrete cutting machineInfo
- Publication number
- CN121716211A CN121716211A CN202610228198.1A CN202610228198A CN121716211A CN 121716211 A CN121716211 A CN 121716211A CN 202610228198 A CN202610228198 A CN 202610228198A CN 121716211 A CN121716211 A CN 121716211A
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- dust
- rotating
- cutting
- groove
- dry
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Abstract
The invention relates to the technical field of cutting machines, in particular to a dry-cutting dust-absorbing type concrete cutting machine which comprises a frame, a pulley block rotatably arranged on one side of the frame, a positioning roller movably arranged at the bottom of the frame, a sealing cover fixedly arranged on one side of the frame and internally provided with a notch, an air pipe detachably arranged at the top of the sealing cover, one end of the air pipe communicated with the notch and the other end of the air pipe connected with external dust-absorbing equipment, a cutter rotatably arranged in the notch, a wind guide cover fixedly arranged inside the notch and communicated with one side of the air pipe, and a guide assembly arranged at two ends of the outer part of the wind guide cover and used for preventing dust from accumulating outside the wind guide cover.
Description
Technical Field
The invention relates to the technical field of cutting machines, in particular to a dry-cutting dust-absorbing type concrete cutting machine.
Background
In the fields of construction, stone processing, metal cutting and the like, a cutting machine is core processing equipment with wide application. The cutting process can produce a large amount of dust gas, and these dust not only can pollute the operation environment, endanger operating personnel's healthy, especially in the concrete construction trade, the concrete dust granule that the cutting produced is hard, the particle diameter is uneven, still easily invades the accurate part of equipment and influence the operating stability, and the dust falls to the construction face simultaneously and can influence the construction quality of following processes such as building, plastering, therefore configuration high-efficient dust extraction is crucial to the cutting machine.
In the prior art, the dust treatment scheme of the concrete cutting machine generally adopts a structural form of a sealing shield and straight hole dust collection. Specifically, a sealing shield is covered outside the saw blade of the cutting machine, concrete dust is prevented from diffusing to the outside by the sealing shield, and meanwhile, a circular straight hole is formed on the wall surface (usually the top) of the sealing shield as an air hole, and the air hole is connected with an external dust suction device through a flexible air pipe. When the dust collector works, negative pressure is generated after the external dust collector is started, and dust-containing gas in the sealed shield is sucked into the dust collector through the straight hole air holes and the air pipes under the action of the negative pressure, so that dust is adsorbed.
According to the technical scheme, although concrete dust can be blocked and adsorbed to a certain extent, the structural design is rough, the defect that the particle size of the concrete dust is uneven, agglomeration is easy, the diffusion speed is high is overcome, the defect and the disadvantage exist in actual concrete cutting operation, the dust adsorption efficiency is low, if an air hole in the prior art is a straight hole without a guide structure, negative pressure generated by an external dust suction device can only form a local adsorption field at an inlet of the straight hole, the concrete dust scattered in a sealing shield cannot be effectively guided, and secondly, due to the limited adsorption range of the straight hole dust suction, air flow vortex and stagnation areas are extremely easy to form at the two side areas of the inner wall of the sealing shield corresponding to the air hole and the clearance between the shield and a saw blade, so that the adsorption efficiency of dust is influenced.
Disclosure of Invention
Accordingly, it is desirable to provide a dry-cut dust-collecting type concrete cutting machine capable of improving dust adsorption efficiency.
The invention provides a dry-cutting dust-absorbing type concrete cutting machine, which comprises a frame, a pulley block rotatably arranged on one side of the frame, and further comprises:
The positioning roller is movably arranged at the bottom of the frame;
The sealing cover is fixedly arranged on one side of the frame, and a notch is formed in the sealing cover;
The air pipe is detachably arranged at the top of the sealing cover, one end of the air pipe is communicated with the notch, and the other end of the air pipe is connected with external dust collection equipment;
the cutter is rotatably arranged in the notch, and one part of the cutter extends out of the sealing cover;
The wind scooper is fixedly arranged in the notch and communicated with one side of the wind pipe, and is in a tapered horn shape;
The air guide assemblies are arranged at two ends of the outer portion of the air guide cover and used for preventing dust from accumulating outside the air guide cover.
In one embodiment, the air guiding assembly comprises a rotating shaft, the rotating shaft movably penetrates through one side of the air guiding cover, a rotating cylinder is fixedly sleeved on the outer side of the tail end, and a plurality of rotating sheets are fixedly installed on the outer side of the rotating cylinder in an annular array mode.
In one embodiment, the rotating piece is provided with a transverse groove at one end close to the outer wall of the wind scooper, a plurality of rotating balls are movably mounted in the transverse groove, a rotating rod is fixedly arranged in the middle of the rotating ball close to the edge of the transverse groove in a penetrating mode, and the other end of the rotating rod is in rotating connection with the inner wall of the transverse groove.
In one embodiment, an L-shaped groove is formed in one side of the rotating piece, a movable groove is formed in the position, above the L-shaped groove, of the rotating piece, a pressing plate is movably arranged in the movable groove, and a plurality of sharp teeth are arranged on the surface, close to one end of the L-shaped groove, of the pressing plate.
In one embodiment, the rotary plate is located at the lower surface of the L-shaped groove, and a plurality of leakage holes are formed in the rotary plate, and penetrate through the side wall of one side of the rotary plate, which is far away from the pressing plate.
In one embodiment, a movable plate is movably arranged in the movable groove, a limit rod is fixedly arranged at one end of the movable plate, which is close to the pressing plate, an arc-shaped groove is formed at one end of the movable plate, which is close to the pressing plate, and one end of the limit rod, which is far away from the movable plate, is in sliding connection with the arc-shaped groove.
In one embodiment, a round rod is rotatably installed in the movable groove, a curved groove is formed in the outer side of the round rod, a positioning rod is fixedly arranged at one end of the movable plate, which is close to the round rod, and one end, away from the movable plate, of the positioning rod is in sliding fit with the curved groove.
In one embodiment, the rotating piece is located at one side of the round rod and movably penetrates through the round rod to be provided with a cross rod, one end of the cross rod is located inside the cross groove, and the cross rod is connected with the round rod through belt transmission.
In one embodiment, the cross rod is positioned at one end in the cross groove and is in transmission connection with the rotating rod through a bevel gear.
In one embodiment, the rotating piece is located below the L-shaped groove, a plurality of steel balls are movably mounted in the accommodating groove, and the steel balls are movably abutted to the inner wall of the accommodating groove.
In one embodiment, the rotating shaft is fixedly connected with a plurality of fan blades at one side of the inside of the wind scooper.
In one embodiment, baffles are fixedly arranged at the bottoms of two sides of the sealing cover.
The dry-cutting dust-absorbing type concrete cutting machine can actively cut and disturb the vortex area through rotation of the rotating plate, the stagnation state of air flow is broken, the retained dust-containing air is enabled to be recombined into the main absorption flow field to accelerate the discharge of the main absorption flow field, the sharp teeth at the bottom of the pressing plate can squeeze, stab and grind large particles/agglomeration dust below the rotating plate, the sharp teeth at the bottom of the pressing plate are broken into fine particles with smaller particle size, the fine particles are light in weight and easy to suspend, the fine particles are quickly absorbed by negative pressure of the air guide cover and smoothly discharged along with the dust-containing air, the problem that the large particles dust is absorbed and piled up is solved, when the rotating plate rotates, steel balls in the accommodating groove are subjected to combined action of centrifugal force, gravity and groove wall collision force, irregular rolling, bouncing and collision are carried out in the groove, vibration force generated by collision is transmitted to the whole rotating plate, high-frequency micro-amplitude shaking is generated by the rotating plate, fine powder adhered to the surface of the rotating plate can be quickly vibrated, and the dust is sucked by the negative pressure of the air guide cover after being resuspended.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, a brief description will be given below of the drawings used in the embodiments or the description of the prior art, it being obvious that the drawings in the following description are some embodiments of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the positioning roller structure in the present invention;
FIG. 3 is a schematic view showing the internal structure of the seal cover according to the present invention;
FIG. 4 is a schematic view of a wind scooper according to the present invention;
FIG. 5 is a schematic view of a rotary drum according to the present invention;
FIG. 6 is a schematic view of a rotating ball according to the present invention;
FIG. 7 is an enlarged schematic view of portion A of FIG. 6;
FIG. 8 is a schematic view of a platen according to the present invention;
FIG. 9 is a schematic view of a stop lever according to the present invention;
fig. 10 is an enlarged schematic view of portion B of fig. 9.
Reference numerals:
1. The device comprises a frame, 2, a pulley block, 3, a positioning roller, 4, an air pipe, 5, a cutter, 6, a sealing cover, 61, a notch, 7, an air guide cover, 8, a guide assembly, 81, a rotating shaft, 82, a rotating cylinder, 9, a rotating piece, 91, a transverse groove, 92, an L-shaped groove, 93, a movable groove, 94, a leak hole, 95, a containing groove, 10, a rotating ball, 11, a rotating rod, 12, a pressing plate, 121, an arc groove, 13, sharp teeth, 14, a movable plate, 15, a limiting rod, 16, a round rod, 161, a curved groove, 17, a positioning rod, 18, a cross rod, 19, a belt, 20, a bevel gear, 21, a steel ball, 22, a fan blade, 23 and a baffle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. 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.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present invention for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in the description of the present invention includes any and all combinations of one or more of the associated listed items.
The dry-cut dust-collecting type concrete cutting machine of the present invention is described below with reference to fig. 1 to 10.
As shown in fig. 1 to 5, in one embodiment, the dry-cutting dust-absorbing type concrete cutting machine includes a frame 1, a pulley block 2 rotatably installed at one side of the frame 1, and further includes:
The positioning roller 3 is movably arranged at the bottom of the frame 1;
A seal cover 6 fixedly installed at one side of the frame 1, and provided with a notch 61 therein;
the air pipe 4 is detachably arranged at the top of the sealing cover 6, one end of the air pipe is communicated with the notch 61, and the other end of the air pipe is connected with external dust collection equipment;
The cutter 5 is rotatably arranged in the notch 61, and one part of the cutter extends out of the sealing cover 6;
The wind scooper 7 is fixedly arranged in the notch 61 and communicated with one side of the wind pipe 4, and is in a tapered horn shape;
The air guide assemblies 8 are arranged at two ends of the outer part of the air guide cover 7 and are used for preventing dust from accumulating outside the air guide cover 7.
Specifically, the pulley block 2 can facilitate an operator to push the frame 1 to move to a preset position for cutting, the frame 1 can drive the sealing cover 6, the cutter 5 and other parts to rotate relative to the pulley block 2, concrete blocks with different thicknesses can be adapted, the positioning roller 3 can transversely slide along the ground when the pulley block 2 rotates, the position is adjusted to ensure the overall stability of the frame 1, the cutter 5 rotates to cut the concrete blocks during cutting, the sealing cover 6 wraps the outer side of the cutter 5, dust gas generated by cutting is prevented from diffusing outwards and being inhaled by a human body, the body health is influenced, external dust collection equipment is synchronously started in the cutting process, the air flow generated by the dust collection equipment pumps out the dust gas diffused inside the sealing cover 6 through the air pipe 4 and the air guide cover 7, the air guide cover 7 is designed into a tapered horn-shaped structure, the tapered structure can accelerate the flow speed of the air flow during passing, according to Bernoulli's principle, the faster the velocity of flow, the lower local pressure is to form stronger negative pressure district in the through-hole entrance, this stronger negative pressure can more effectively draw dust-laden gas from seal housing 6, promote adsorption efficiency, secondly, the inclined plane that tapers can be like the funnel, guide and gather the dust-laden air current that gathers in the notch 61 of seal housing 6 to tuber pipe 4 entry, reduce the vortex and the dead angle of air current at seal housing 6 top, let more dust directly get into the pipeline, avoid the dust deposit, but still have some dust-laden gas to gather in the wind-guiding cover 7 outside, can drive this partial regional air current through water conservancy diversion subassembly 8 and produce undulant, impel this part dust-laden gas to remove to wind-guiding cover 7 opening part, accelerate its adsorption velocity, avoid the dust to pile up in wind-guiding cover 7 outside.
Referring to fig. 4-6, in this embodiment, the air guiding component 8 includes a rotating shaft 81, the rotating shaft 81 movably penetrates through one side of the air guiding cover 7, a rotating cylinder 82 is fixedly sleeved on the outer side of the tail end, and a plurality of rotating plates 9 are fixedly installed on the outer side of the rotating cylinder 82 in an annular array.
Specifically, the rotation of the rotating shaft 81 drives the rotating cylinder 82 to synchronously rotate the rotating plate 9 to rotate, the rotating shaft 81 is driven by the micro motor, the tapered wind scooper 7 can accelerate the main air flow to converge towards the air holes, but the leeward region outside the wind scooper 7 is shielded by the air flow adsorbed by the negative pressure, so that an air flow stagnation vortex region is easily formed, namely dust-containing air cannot be discharged along with the main air flow after entering the region, and the dust-containing air can locally whirl and stay. The rotation of the rotating plate 9 can actively cut and disturb the vortex area, break the stagnation state of the air flow, enable the retained dust-containing air to be recombined into the main adsorption flow field, flow along the outer side of the air guide cover 7 towards the air hole direction, dredge the discharge path of the dust-containing air from the flow field layer, and reduce the flow field resistance of the main air flow.
Referring to fig. 6 and 7, in the present embodiment, a transverse slot 91 is formed at one end of the rotating plate 9 near the outer wall of the wind guiding cover 7, a plurality of rotating balls 10 are movably mounted in the transverse slot 91, a rotating rod 11 is fixedly and penetratingly arranged in the middle of the rotating ball 10 near the extreme side of the transverse slot 91, and the other end of the rotating rod 11 is rotatably connected with the inner wall of the transverse slot 91.
Specifically, in the concrete cutting operation, the concrete fine powder and sand grains are easy to adhere to the outer wall of the wind scooper 7, if the rotating sheet 9 directly slides in hard contact with the outer wall, rigid sliding friction can be formed due to dust inclusion, the rotating resistance is high, clamping stagnation of the rotating sheet 9 is easy to cause, power loss is increased, the attaching end of the rotating sheet 9 and the outer wall of the wind scooper 7 can be worn rapidly, the service life of parts is reduced, the rotating ball 10 is embedded into the transverse groove 91 and is abutted with the outer wall, the sliding friction between the rotating sheet 9 and the outer wall is converted into rolling friction of the rotating ball 10, the friction coefficient is greatly reduced, even if dust is adhered to the outer wall, the dust can be rolled up and separated through the rolling of the rotating ball 10, dust can be adsorbed conveniently, clamping stagnation caused by sudden increase of friction resistance is avoided, meanwhile, scraping abrasion to the outer wall of the wind scooper 7 is thoroughly reduced, the outer structure of the wind scooper 7 is ensured to be complete, and the air flow guiding effect is not influenced.
Referring to fig. 8, in the present embodiment, an L-shaped slot 92 is formed on one side of the rotating plate 9, a movable slot 93 is formed above the L-shaped slot 92 on the rotating plate 9, a pressing plate 12 is movably disposed in the movable slot 93, and a plurality of sharp teeth 13 are disposed on one end surface of the pressing plate 12 close to the L-shaped slot 92.
Specifically, among the dust that concrete cutting produced, there is a large amount of coarse grain piece, bonding caking dust, this kind of dust weight is big, mobility is poor, it is difficult to be adsorbed only to rely on the negative pressure of wind scooper 7, easily pile up in wind scooper 7 lee department, when rotor 9 rotates, the large granule dust of wind scooper 7 outer wall can be along with scraping of rotor 9, the effect gets into L type inslot, secondly, dust particle in the air current also can get into L type inslot 92, the large granule dust that gets into L type inslot slides to clamp plate 12 below, clamp plate 12 reciprocates in movable groove 93, sharp tooth 13 of clamp plate 12 bottom can extrude, stab, grind to the large granule/caking dust of below, break into the fine granule that the particle diameter is less, fine granule dust weight is light, easily suspend, can be adsorbed by wind scooper 7's down by the negative pressure, be discharged along with the dust gas smoothly, solve the problem that large granule dust "is inhaled still, pile up.
Referring to fig. 5 and 8, in the present embodiment, a plurality of holes 94 are formed in the lower surface of the L-shaped slot 92 of the rotating plate 9, and the holes 94 penetrate through the side wall of the rotating plate 9 on the side away from the pressing plate 12.
Specifically, the large-particle dust is broken into fine particles with smaller particle sizes under the action of the sharp teeth 13, and is discharged through the leakage holes 94, and because the rotating plate 9 is always in a rotating state, centrifugal force can be generated to throw out the dust, so that the dust is easy to be absorbed by dust collection equipment.
Referring to fig. 9 and 10, in the present embodiment, a movable plate 14 is movably disposed in the movable slot 93, a stop lever 15 is fixedly disposed at one end of the movable plate 14 facing the pressing plate 12, an arc slot 121 is disposed at one end of the pressing plate 12 facing the movable plate 14, and one end of the stop lever 15 far away from the movable plate 14 is slidably connected with the arc slot 121.
Specifically, the movable plate 14 transversely reciprocates in the rotation process of the rotating plate 9, the movable plate 14 can drive the limiting rod 15 to transversely reciprocate, the limiting rod 15 slides along the arc-shaped groove 121 formed in the pressing plate 12 in the movement process, the pressing plate 12 can reciprocate up and down, and large-particle dust can be crushed through the sharp teeth 13.
Referring to fig. 9 and 10, in this embodiment, a round bar 16 is rotatably mounted in a movable groove 93, a curved groove 161 is formed on the outer side of the round bar 16, a positioning bar 17 is fixedly disposed on one end of the movable plate 14, which is close to the round bar 16, and one end of the positioning bar 17, which is far from the movable plate 14, is slidably attached to the curved groove 161.
Specifically, the rotation of the round rod 16 drives the curved groove 161 to rotate, the rotation of the curved groove 161 drives the positioning rod 17 to transversely reciprocate, the transversely reciprocating movement of the positioning rod 17 drives the movable plate 14 to move, and the up-and-down reciprocating movement of the pressing plate 12 can be realized through the cooperation of the limiting rod 15 and the arc groove 121, so that the large particle dust can be crushed conveniently.
Referring to fig. 8-10, in this embodiment, a cross bar 18 is movably installed on the rotating plate 9 at one side of the round bar 16, one end of the cross bar 18 is located in the cross slot 91, and the cross bar 18 is in transmission connection with the round bar 16 through a belt 19.
Specifically, the rotation of the cross rod 18 drives the round rod 16 to synchronously rotate together through the transmission of the belt 19, and the round rod 16 can finally move up and down to crush the large-particle dust through the rotation of the round rod 16.
Referring to fig. 7, in this embodiment, the cross bar 18 is located at one end of the cross slot 91 and is in driving connection with the rotating bar 11 via the bevel gear 20.
Specifically, in the rotation process of the rotating plate 9, one of the rotating balls 10 rotates, the rotating ball 10 rotates to drive the rotating rod 11 to rotate, the rotating rod 11 drives the cross rod 18 to synchronously rotate together through the transmission of the bevel gear 20, so that the up-and-down reciprocating movement of the pressing plate 12 is finally realized, in the step, the pressing plate 12 synchronously breaks large-particle dust in the rotation process of the rotating plate 9 through the transmission of the bevel gear 20, and the dust adsorption efficiency is higher.
Referring to fig. 8, in this embodiment, a receiving groove 95 is formed below the L-shaped groove 92 of the rotating plate 9, a plurality of steel balls 21 are movably mounted in the receiving groove 95, and the steel balls 21 are movably abutted against the inner wall of the receiving groove 95.
Specifically, the concrete fine powder has strong viscosity, even if the rotary plate 9 finishes ash removal and crushing through the rotary balls 10 and the sharp teeth 13, a large amount of fine powder still adheres to the surface of the rotary plate 9, the long-term accumulation can cause the reduction of the attaching degree of the rotary plate 9 and the structural clamping stagnation, when the rotary plate 9 rotates, the steel balls 21 in the accommodating grooves 95 are subjected to the combined action of centrifugal force, gravity and the collision force of the groove walls, irregular rolling, bouncing and collision are carried out in the grooves, the vibration force generated by the collision is transmitted to the whole rotary plate 9, so that the rotary plate 9 generates high-frequency micro-amplitude vibration, on one hand, the adhesive fine powder on the surface of the sheet body can be rapidly vibrated, the dust is sucked away by the wind scooper 7 after being resuspended, on the other hand, the dust embedded in the gaps of the sharp teeth 13 and the transverse grooves 91 can be shaken off, the normal movement of the rotary balls 10 and the pressing plates 12 is prevented from being influenced by the blocking of the accumulated dust, and the functions of each structure are not invalid.
Referring to fig. 4, in the present embodiment, a plurality of fan blades 22 are fixedly connected to a side of the rotating shaft 81 located inside the wind scooper 7.
Specifically, although the tapering structure of the wind scooper 7 can primarily accelerate the dust collection airflow, the problem of uneven airflow velocity and negative pressure attenuation is easily formed in the wind scooper 7 (especially in the edge area far away from the air pipe 4 interface) by the passive negative pressure of the external dust collection device, fine particle dust is easy to stay in the wind scooper, the fan blades 22 rotating together with the rotating shaft 81 can actively strengthen the airflow power in the wind scooper 7, so that the adsorption efficiency is improved from the root, in addition, the rotation of the fan blades 22 can force the airflow in the wind scooper 7 to flow in the direction of the air pipe 4 interface, the airflow velocity is further improved, the dust-containing air is discharged more quickly, and the dust is prevented from staying and accumulating in the wind scooper 7.
Referring to fig. 1, in this embodiment, the bottom of both sides of the seal cover 6 is fixedly provided with a baffle plate 23.
Specifically, the baffle plate 23 can further prevent dust-containing gas generated in the cutting process from overflowing from the sealing cover 6, and unnecessary damage is caused to the human body.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention, which are within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610228198.1A CN121716211B (en) | 2026-02-26 | 2026-02-26 | Dry-cutting, dust-collecting concrete cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610228198.1A CN121716211B (en) | 2026-02-26 | 2026-02-26 | Dry-cutting, dust-collecting concrete cutter |
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| CN121716211A true CN121716211A (en) | 2026-03-24 |
| CN121716211B CN121716211B (en) | 2026-04-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134348A (en) * | 2006-09-01 | 2008-03-05 | 爱科昇株式会社 | Concrete cutter |
| KR100910647B1 (en) * | 2009-02-16 | 2009-08-05 | 의왕개발 주식회사 | Multi-line cutting device for concrete road repair |
| JP6883285B1 (en) * | 2020-03-25 | 2021-06-09 | 井関農機株式会社 | combine |
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| Publication number | Publication date |
|---|---|
| CN121716211B (en) | 2026-04-28 |
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