CN209449186U - A kind of mine recovery auto-manual system drilling machine - Google Patents
A kind of mine recovery auto-manual system drilling machine Download PDFInfo
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- CN209449186U CN209449186U CN201822198427.3U CN201822198427U CN209449186U CN 209449186 U CN209449186 U CN 209449186U CN 201822198427 U CN201822198427 U CN 201822198427U CN 209449186 U CN209449186 U CN 209449186U
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Abstract
A kind of mine recovery auto-manual system drilling machine, it is related to a kind of mine drilling machine.The problem of the utility model solves existing drilling machine, and there are brackets can not adjust drilling machine angle, and drilling machine can only bore the pit-hole of fixed-direction.The track sliding block is mounted on the track of track platform and opposite can slide, and the first feed screw nut of track sliding block is connect with the first threads of lead screw on track platform；One end of rack rod component and the upper surface of track sliding block are hinged, the top of the bottom plate of the other end and working slider of rack rod component is hinged, the lower part of working slider is hinged by one end of the hinged seat and track platform, the drilling machine sliding block is mounted on the track of working slider, the feed screw nut of drilling machine sliding block and the threads of lead screw of working slider connect, drilling machine components are mounted on drilling machine sliding block, and the alloy bit of drilling machine components is by the setting tapered in the shape of a spiral of drillstock to drill bit.The mine recovery of the utility model is with auto-manual system drilling machine for the drilling that burrows when mine recovery.
Description
Technical field
The utility model relates to a kind of mine recovery auto-manual system drilling machines, belong to mine recovery drilling rig technique field.
Background technique
Since human habitat is increasingly paid attention in the whole world, China especially payes attention to ring while rapid economic development
The protection and improvement in border, as the continuous of improved day by day and controlling input dynamics of mining geological environmental protection items system adds
Greatly, Green Mine construction is imperative, therefore mine recovery work is increasingly paid attention to by mine industry.
But the certain technical support of mine recovery need of work, it is not easy to because doing greening on stony hillside, tradition
Multiple green work be sow grass seeds by duster on mine soil and grass-seed, while needing manually to find the position that can be digged pit on mine with spade
It digs pit kind tree, this multiple green mode has the disadvantage that: (1) rear surface of the mine Jing Guo exploitation is substantially with rock and soil mixture
Based on be difficult to excavate；(2) soil directly sowed grass seeds by duster is covered on mine surface and is easy to rain water runoff；(3) soil directly sowed grass seeds by duster
Earth is covered on that mine surface thickness is too small to be unfavorable for kind tree, is only suitable for kind of a grass；(4) it is heavy to be all that rock is unfavorable for rainwater for soil lower layer
Product.
Drilling machine is common mechanical equipment on mine, however the drilling machine for mine recovery is seldom on the market at present, because
It is in changeable angle for mine surface and Earth surface plane, the bracket of conventional drilling machine can not adjust the angle the hole that can only bore fixed-direction
Hole.
Utility model content
The utility model is that there are brackets can not adjust drilling machine angle for the existing drilling machine of solution, and drilling machine can only bore fixed-direction
Pit-hole the problem of, and then provide a kind of mine recovery auto-manual system drilling machine.
The utility model adopts the technical scheme that solve above-mentioned technical problem:
The mine recovery auto-manual system drilling machine of the utility model includes track platform 101, track sliding block 102, bracket company
Bar assembly 103, working slider 104, drilling machine sliding block 105, hinged seat 106 and drilling machine components；The track sliding block 102 is mounted on ground
It on the track of rail platform 101 and opposite can slide, on the first feed screw nut 304 and track platform 101 of track sliding block 102
First lead screw 207 is threadedly coupled；One end of rack rod component 103 and the upper surface of track sliding block 102 are hinged, rack rod group
The other end of part 103 and the top of the bottom plate of working slider 104 are hinged, and the lower part of working slider 104 passes through the hinged seat 106
Hinged with one end of track platform 101, the drilling machine sliding block 105 is mounted on the track of working slider 104, drilling machine sliding block 105
Feed screw nut 607 connect with the threads of lead screw of working slider 104, drilling machine components are mounted on drilling machine sliding block 105, drilling machine components
Alloy bit 604 by the setting tapered in the shape of a spiral of drillstock to drill bit.
In one embodiment, the track platform 101 includes hand case 201, transmission case 202, the first supporting block
203,209, two bottom plate 204, the first block 206, the first lead screw 207, the second block 208, the second supporting block guide rails 205 and two
A first bearing 210；
First supporting block 203 and the second supporting block 209 are oppositely arranged on the upper end of bottom plate 204 along 204 length direction of bottom plate
On face, the first lead screw 207 is mounted in the first supporting block 203 and the second supporting block 209, and two guide rails 205 are arranged in parallel in
The two sides of one lead screw 207, the first block 206 and the second block 208 are packed on the upper surface of bottom plate 204 and are located at the first lead screw
Below 207 both ends, two helical gears are set, one in two helical gears is solidly set on the first lead screw 207 in transmission case 202
On, another in two helical gears is solidly set in the shaft of hand case 201, two helical gear Vertical Meshing settings, hand case
201 are arranged on the upper surface of transmission case 202, and wind is provided on hand case 201, is provided with below the wind of hand case
Set lever.
In one embodiment, the track platform 101 further includes two first bearings 210,203 He of the first supporting block
It is mounted on a first bearing 210 in second supporting block 209, the first lead screw 207 is mounted on the by two first bearings 210
In one supporting block 203 and the second supporting block 209.
In one embodiment, track sliding block 102 includes slide roof 302, tightening flange 303, the first feed screw nut
304, tightening seat 305 and four linear slide blocks 301；Tightening seat 305 and four linear slide blocks 301 are fixed on slide roof 302
On lower end surface, four linear slide blocks 301 are slidably matched in arranged in matrix in 302 edge of slide roof and with two guide rails 205,
First feed screw nut 304 is fixed on tightening seat 305 by tightening flange 303, the first feed screw nut 304 and the first lead screw 207
It is threadedly coupled.
In one embodiment, the quantity of the rack rod component 103 is two, each rack rod component 103
Including 401, two supports 402 of connecting rod and two pin shafts 403；The both ends of connecting rod 401 are all connected with the support 402,
Hinged by a pin shaft 403 between the connecting rod 401 and support 402, two rack rod components 103 are arranged in parallel
Between track sliding block 102 and working slider 104.
In one embodiment, the working slider 104 includes the first asynchronous machine 501, motor support base 502, first
Shaft coupling 503, bedframe 504, the second lead screw 505, close 510, two, switch support plate 506, two guide post 507 and two
A support frame 508；First asynchronous machine 501 is fixed on one end of the bedframe 504 by the motor support base 502
On, second lead screw 505 is mounted on the upper surface of bedframe 504 by two support plates 506, the first asynchronous machine
501 output shaft is connect by first shaft coupling 503 with the second lead screw 505, and two guide posts 507 are installed in parallel in bedframe
On 504 both ends, the second lead screw 505 is located between two guide posts 507, and a support is provided with below each guide post 507
Frame 508.
In one embodiment, the working slider 104 further includes two second bearings 509, in each support plate 506
One second bearing 509 is installed, second lead screw 505 is mounted in two support plates 506 by two second bearings 509.
In one embodiment, drilling machine components include the second asynchronous machine 601, motor pressure plate 602, second shaft coupling
603, alloy bit 604, motor cabinet 605, the second feed screw nut 607 and four guide chutes 606；Second asynchronous machine
601 are fixed on motor cabinet 605, and the motor pressure plate 602 is connect by bolt with the motor cabinet 605, and four guiding are slided
Slot 606 is bolted on the bottom face of the motor cabinet 605 and is slidably matched with two guide posts 507, the second lead screw
Nut 607 is fixed on the center bottom of motor cabinet 605, and the second feed screw nut 607 is threadedly coupled with the second lead screw 505, the conjunction
The output axis connection that golden drill bit 604 passes through the second shaft coupling 603 and second asynchronous machine 601.
The utility model has the advantages that compared with prior art
The mine recovery of the utility model is digged pit the use that burrows when being directed to mine recovery with auto-manual system drilling machine, unique tune
Whole dip angle organization is applicable to the mine surface of any angle, and the hand-rail type control mechanism more stable control workbench of aspect rises
It falls, to preferably control drilling machine angle, rotary locking mechanism can lock drilling machine inclination angle, will not occur when inclination angle being made to work
Variation；
The mine recovery of the utility model is simple with auto-manual system drill configuration, easy to operate, can be placed in small
On vehicle or wheel is installed thereunder and leans on manpower or power traction；
The alloy bit of the drilling machine components of the utility model can be subjected to high-frequency shock loading, reversed, it is curved
There is still higher service life when the effects of a variety of combined stresses such as bent, stretching, compression, unique configuration design keeps it more suitable
For getting into the cave on mine surface；
The mine recovery of the utility model got into the cave with auto-manual system drilling machine it is high-efficient, can on mine hard rock etc. it is artificial
The surface that can not be excavated is got into the cave, and the speed that burrows is fast, and pit-hole is high-quality, saves time and labor.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the mine recovery auto-manual system drilling machine of the utility model；
Fig. 2 is the structural schematic diagram of track platform 101 in specific embodiment of the present utility model two；
Fig. 3 is the structural schematic diagram of track sliding block 102 in specific embodiment of the present utility model four；
Fig. 4 is the structural schematic diagram of rack rod component 103 in specific embodiment of the present utility model five；
Fig. 5 is the structural schematic diagram of working slider 104 in specific embodiment of the present utility model six；
Fig. 6 is the structural schematic diagram of drilling machine components in specific embodiment of the present utility model eight.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
As shown in figs. 1 to 6, the mine recovery auto-manual system drilling machine of present embodiment includes track platform 101, track cunning
Block 102, rack rod component 103, working slider 104, drilling machine sliding block 105, hinged seat 106 and drilling machine components；The track is sliding
Block 102 is mounted on the track of track platform 101 and opposite can slide, the first feed screw nut 304 and the ground of track sliding block 102
The first lead screw 207 on rail platform 101 is threadedly coupled；One end of rack rod component 103 and the upper surface of track sliding block 102 are cut with scissors
It connects, the top of the other end and the bottom plate of working slider 104 of rack rod component 103 is hinged, and the lower part of working slider 104 passes through
One end of the hinged seat 106 and track platform 101 is hinged, and the drilling machine sliding block 105 is mounted on the track of working slider 104
On, the feed screw nut 607 of drilling machine sliding block 105 is connect with the threads of lead screw of working slider 104, and drilling machine components are mounted on drilling machine sliding block
On 105, the alloy bit 604 of drilling machine components is by the setting tapered in the shape of a spiral of drillstock to drill bit.
As shown in Fig. 2, the track platform 101 includes hand case 201, transmission case 202, the first supporting block 203, bottom plate
204, the first block 206, the first lead screw 207, the second block 208,209, two guide rails 205 of the second supporting block and two first axles
Hold 210；
First supporting block 203 and the second supporting block 209 are oppositely arranged on the upper end of bottom plate 204 along 204 length direction of bottom plate
On face, the first lead screw 207 is mounted in the first supporting block 203 and the second supporting block 209, and two guide rails 205 are arranged in parallel in
The two sides of one lead screw 207, the first block 206 and the second block 208 are packed on the upper surface of bottom plate 204 and are located at the first lead screw
Below 207 both ends, two helical gears are set, one in two helical gears is solidly set on the first lead screw 207 in transmission case 202
On, another in two helical gears is solidly set in the shaft of hand case 201, two helical gear Vertical Meshing settings, hand case
201 are arranged on the upper surface of transmission case 202, and wind is provided on hand case 201, is provided with below the wind of hand case
Set lever.
It is designed in this way, is operated by shaking hand case 201, hand case 201 passes through two helical teeth in transmission case 202
Wheel rotation, thus driving the first lead screw 207 rotation.
As shown in Fig. 2, the track platform 101 further includes two first bearings 210, the first supporting block 203 and second
A first bearing 210 is mounted on bracer 209, the first lead screw 207 is mounted on the first support by two first bearings 210
On block 203 and the second supporting block 209.
As shown in figure 3, track sliding block 102 includes slide roof 302, tightening flange 303, the first feed screw nut 304, tightening
Seat 305 and four linear slide blocks 301；Tightening seat 305 and four linear slide blocks 301 are fixed on the lower end surface of slide roof 302,
Four linear slide blocks 301 are slidably matched in arranged in matrix in 302 edge of slide roof and with two guide rails 205, the first lead screw
Nut 304 is fixed on tightening seat 305 by tightening flange 303, and the first feed screw nut 304 is threadedly coupled with the first lead screw 207.
It is designed in this way, when operating hand case 201, the rotation of the first lead screw 207 can drive the first feed screw nut 304 to do straight line
Movement, so that track sliding block 102 be driven to do opposite sliding on track platform 101.
As shown in figure 4, the quantity of the rack rod component 103 is two, each rack rod component 103 includes connection
401, two supports 402 of bar and two pin shafts 403；The both ends of connecting rod 401 are all connected with the support 402, the connection
Hinged by a pin shaft 403 between bar 401 and support 402, it is sliding that two rack rod components 103 are arranged in parallel in track
Between block 102 and working slider 104.
As shown in figure 5, the working slider 104 includes the first asynchronous machine 501, motor support base 502, first shaft coupling
503, bedframe 504, the second lead screw 505, close 510, two, the switch guide post 507 of support plate 506, two and two supports
Frame 508；First asynchronous machine 501 is fixed on one end of the bedframe 504 by the motor support base 502, institute
State the second lead screw 505 and be mounted on the upper surface of bedframe 504 by two support plates 506, the first asynchronous machine 501 it is defeated
Shaft is connect by first shaft coupling 503 with the second lead screw 505, and two guide posts 507 are installed in parallel in the two of bedframe 504
On end, the second lead screw 505 is located between two guide posts 507, and a support frame 508 is provided with below each guide post 507.
It is designed in this way, for track sliding block 102 when doing opposite sliding on track platform 101, bracket institution 104 can be sliding in track
Block 102 moves up and down under driving, to drive working slider 104 to rise or decline, to preferably control drilling machine components
604 tilt angle of alloy bit.
As shown in figure 5, the working slider 104 further includes two second bearings 509, one is installed in each support plate 506
A second bearing 509, second lead screw 505 are mounted in two support plates 506 by two second bearings 509.
As shown in fig. 6, drilling machine components include the second asynchronous machine 601, motor pressure plate 602, second shaft coupling 603, close
Golden drill bit 604, motor cabinet 605, the second feed screw nut 607 and four guide chutes 606；Second asynchronous machine 601 is fixed
On motor cabinet 605, the motor pressure plate 602 is connect by bolt with the motor cabinet 605, and four guide chutes 606 are logical
It crosses bolt to be fixed on the bottom face of the motor cabinet 605 and be slidably matched with two guide posts 507, the second feed screw nut 607
It is fixed on the center bottom of motor cabinet 605, the second feed screw nut 607 is threadedly coupled with the second lead screw 505, the alloy bit
604 pass through the output axis connection of the second shaft coupling 603 and second asynchronous machine 601.
The course of work of the utility model is achieved in the following ways:
Step 1: placing it in the multiple green position in mine when the work of mine recovery auto-manual system drilling machine, controlling track
Hand case 201 on platform 101 rotates the handle of hand case 201, and passes through two helical teeth wheel drives first of transmission case 202
Lead screw 207 rotates, and the rotation of the first lead screw 207 drives the first feed screw nut 304 to do straight reciprocating motion, the first feed screw nut 304
Track sliding block 102 is driven to do straight reciprocating motion along guide rail 205, to drive rack rod component 103 to move, so that the work
Make slide unit 104 to lift or land, to control the angle of the working slider 104 and mine surface；
Step 2: lock the set lever in hand case 201 after 104 angle of working slider is positioned and determined,
The worm screw in hand case 201 is locked by frictional force, the tilt angle of the working slider 104 is fixed, becomes it no longer
Change；
Step 3: driving the first asynchronous machine 501 rotation drives the rotation of the second lead screw 505, so that it is sliding to control the drilling machine
The forward or backward of block 105, while the second asynchronous machine 601 for controlling drilling machine components drives alloy bit 604 to rotate, and carries out mine
Excavate the work that burrows in mountain.
The lock shaft of set lever is vertically arranged with the worm screw in hand case 201, the lock shaft and rotation hand of set lever
The connection of 201 sidewall thread of case is shaken, the lock shaft of set lever is locked the worm screw in hand case 201 by frictional force.
According to the difference for the size depth that the ground characteristics in different mines and needs burrow, the conjunction of drilling machine components can be replaced
Golden drill bit 604, the dismounting of alloy bit 604 can be completed by dismounting couplers 603, to select suitable alloy bit
604, after alloy bit 604 is using certain time abrasion, it is also desirable to which replacement in time is replaced convenient for alloy bit 604.
Although describing the utility model herein with reference to specific embodiment, it should be understood that, this
A little embodiments are only the example of the principles of the present invention and application.It should therefore be understood that can be to illustrative reality
It applies example and carries out many modifications, and can be designed that other arrangements, without departing from this reality as defined in the appended claims
With novel spirit and scope.It should be understood that can be combined by being different from mode described in original claim
Different dependent claims and feature described herein.It will also be appreciated that combining spy described in separate embodiments
Sign can be used in other embodiments.
Claims (8)
1. a kind of mine recovery auto-manual system drilling machine, it is characterised in that: the mine recovery includes ground with auto-manual system drilling machine
It is rail platform (101), track sliding block (102), rack rod component (103), working slider (104), drilling machine sliding block (105), hinged
Seat (106) and drilling machine components；The track sliding block (102) is mounted on the track of track platform (101) and opposite can slide,
The first feed screw nut (304) of track sliding block (102) is threadedly coupled with the first lead screw (207) on track platform (101)；Bracket
One end of link assembly (103) and the upper surface of track sliding block (102) are hinged, the other end and work of rack rod component (103)
The top for making the bottom plate of slide unit (104) is hinged, and the lower part of working slider (104) passes through the hinged seat (106) and track platform
(101) one end is hinged, and the drilling machine sliding block (105) is mounted on the track of working slider (104), drilling machine sliding block (105)
Feed screw nut (607) is connect with the threads of lead screw of working slider (104), and drilling machine components are mounted on drilling machine sliding block (105), drilling machine
The alloy bit (604) of component is by the setting tapered in the shape of a spiral of drillstock to drill bit.
2. mine recovery according to claim 1 auto-manual system drilling machine, it is characterised in that: the track platform (101)
Including hand case (201), transmission case (202), the first supporting block (203), bottom plate (204), the first block (206), the first lead screw
(207), the second block (208), the second supporting block (209), two guide rails (205) and two first bearings (210)；
First supporting block (203) and the second supporting block (209) are oppositely arranged on bottom plate (204) along bottom plate (204) length direction
On upper surface, the first lead screw (207) is mounted in the first supporting block (203) and the second supporting block (209), two guide rails (205)
The two sides of the first lead screw (207) are arranged in parallel in, the first block (206) and the second block (208) are packed in the upper of bottom plate (204)
On end face and it is located at below the both ends of the first lead screw (207), two helical gears, two helical gears is set in transmission case (202)
In one be solidly set on the first lead screw (207), another in two helical gears is solidly set on the screw rod of hand case (201),
Two helical gear Vertical Meshing settings, hand case (201) are arranged on the upper surface of transmission case (202), set on hand case (201)
It is equipped with wind, set lever is set below the wind of hand case.
3. mine recovery according to claim 2 auto-manual system drilling machine, it is characterised in that: the track platform (101)
Further include two first bearings (210), is mounted on a first axle in the first supporting block (203) and the second supporting block (209)
It holds (210), the first lead screw (207) is mounted on the first supporting block (203) and the second supporting block by two first bearings (210)
(209) on.
4. mine recovery according to claim 1,2 or 3 auto-manual system drilling machine, it is characterised in that: track sliding block (102)
Including slide roof (302), tightening flange (303), the first feed screw nut (304), tightening seat (305) and four linear slide blocks
(301)；Tightening seat (305) and four linear slide blocks (301) are fixed on the lower end surface of slide roof (302), and four linear sliding
Block (301) is slidably matched in arranged in matrix in slide roof (302) edge and with two guide rails (205), the first feed screw nut
(304) it is fixed on tightening seat (305) by tightening flange (303), the first feed screw nut (304) and the first lead screw (207) spiral shell
Line connection.
5. mine recovery according to claim 4 auto-manual system drilling machine, it is characterised in that: the rack rod component
(103) quantity is two, and each rack rod component (103) includes connecting rod (401), two supports (402) and two pins
Axis (403)；The both ends of connecting rod (401) are all connected with the support (402), the connecting rod (401) and support (402) it
Between by a pin shaft (403) hingedly, two rack rod components (103) are arranged in parallel in track sliding block (102) and work
Make between slide unit (104).
6. according to claim 1, the auto-manual system drilling machine of mine recovery described in 2,3 or 5, it is characterised in that: the work is sliding
Platform (104) includes the first asynchronous machine (501), motor support base (502), first shaft coupling (503), bedframe (504), second
Lead screw (505), close switch (510), two support plates (506), two guide posts (507) and two support frames (508)；It is described
First asynchronous machine (501) is fixed on one end of the bedframe (504) by the motor support base (502), and described the
Two lead screws (505) are mounted on the upper surface of bedframe (504) by two support plates (506), the first asynchronous machine (501)
Output shaft connect with the second lead screw (505) by first shaft coupling (503), two guide posts (507) are installed in parallel in pedestal
On the both ends of frame (504), the second lead screw (505) is located between two guide posts (507), sets below each guide post (507)
It is equipped with a support frame (508).
7. mine recovery according to claim 6 auto-manual system drilling machine, it is characterised in that: the working slider (104)
Further include two second bearings (509), a second bearing (509), second lead screw are installed on each support plate (506)
(505) it is mounted on two support plates (506) by two second bearings (509).
8. according to claim 1, the auto-manual system drilling machine of mine recovery described in 2,3,5 or 7, it is characterised in that: drilling machine components
Including the second asynchronous machine (601), motor pressure plate (602), second shaft coupling (603), alloy bit (604), motor cabinet
(605), the second feed screw nut (607) and four guide chutes (606)；Second asynchronous machine (601) is fixed on motor cabinet
(605) on, the motor pressure plate (602) is connect by bolt with the motor cabinet (605), and four guide chutes (606) are logical
It crosses bolt to be fixed on the bottom face of the motor cabinet (605) and be slidably matched with two guide posts (507), the second feed screw nut
(607) it is fixed on the center bottom of motor cabinet (605), the second feed screw nut (607) is threadedly coupled with the second lead screw (505), institute
It states alloy bit (604) and passes through the output axis connection of the second shaft coupling (603) and second asynchronous machine (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198427.3U CN209449186U (en) | 2018-12-26 | 2018-12-26 | A kind of mine recovery auto-manual system drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198427.3U CN209449186U (en) | 2018-12-26 | 2018-12-26 | A kind of mine recovery auto-manual system drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN209449186U true CN209449186U (en) | 2019-10-01 |
Family
ID=68042165
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822198427.3U Active CN209449186U (en) | 2018-12-26 | 2018-12-26 | A kind of mine recovery auto-manual system drilling machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111165125A (en) * | 2019-12-27 | 2020-05-19 | 陈力 | Chinese-medicinal material planter |
| CN111922372A (en) * | 2020-05-29 | 2020-11-13 | 安徽利锋机械科技有限公司 | Slide rail electric drill track angular adjustment and fixed subassembly |
| CN112544172A (en) * | 2020-12-22 | 2021-03-26 | 南昌工程学院 | A digging device for landscape plant plants |
| CN114659297A (en) * | 2022-05-20 | 2022-06-24 | 深圳市鹏跃新能源科技有限公司 | New forms of energy earth source heat pump machine |
-
2018
- 2018-12-26 CN CN201822198427.3U patent/CN209449186U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111165125A (en) * | 2019-12-27 | 2020-05-19 | 陈力 | Chinese-medicinal material planter |
| CN111165125B (en) * | 2019-12-27 | 2022-03-04 | 利川市勤隆中药材专业合作社 | Chinese-medicinal material planter |
| CN111922372A (en) * | 2020-05-29 | 2020-11-13 | 安徽利锋机械科技有限公司 | Slide rail electric drill track angular adjustment and fixed subassembly |
| CN112544172A (en) * | 2020-12-22 | 2021-03-26 | 南昌工程学院 | A digging device for landscape plant plants |
| CN114659297A (en) * | 2022-05-20 | 2022-06-24 | 深圳市鹏跃新能源科技有限公司 | New forms of energy earth source heat pump machine |
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