CN211690335U - Pile driver for construction - Google Patents
Pile driver for construction Download PDFInfo
- Publication number
- CN211690335U CN211690335U CN202020097469.2U CN202020097469U CN211690335U CN 211690335 U CN211690335 U CN 211690335U CN 202020097469 U CN202020097469 U CN 202020097469U CN 211690335 U CN211690335 U CN 211690335U
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- China
- Prior art keywords
- clamping plate
- pile
- guide rail
- clamping
- pile frame
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to a pile driver for construction, articulate in the last guide rail pile frame on lower guide rail pile frame upper portion, slide and connect in the hinge formula balladeur train of last guide rail pile frame and lower guide rail pile frame and fixed connection in the hydraulic hammer of hinge formula balladeur train and the setting of four-wheel chassis in the telescopic machanism of guide rail pile frame regulation with great ease in the horizontal plane including four-wheel chassis, vertical setting and fixed connection in the lower guide rail pile frame on four-wheel chassis, the lower guide rail pile frame is provided with the below that is located the hydraulic hammer and carries out the fixture of centre gripping to the pile body. The utility model discloses it is fixed to have to carry out the centre gripping to the pile body, effectively reduces the effect of the potential safety hazard that exists in the work progress.
Description
Technical Field
The utility model belongs to the technical field of construction equipment technique and specifically relates to a pile driver for construction is related to.
Background
The pile driver consists of a pile hammer, a pile frame, accessory equipment and the like. The pile hammer is attached between two parallel vertical guide rods (commonly called gantry) at the front part of the pile frame and is hoisted by a hoisting hook. The pile frame is a steel structure tower frame, and a winch is arranged at the rear part of the pile frame and used for hoisting the pile and the pile hammer. The front of the pile frame is provided with a guide frame consisting of two guide rods for controlling the piling direction so that the pile can accurately penetrate into the stratum according to the designed direction.
At present, chinese patent with publication number CN 206052707U discloses a hydraulic pile driver for a highway guardrail, which comprises a pile frame, a four-wheel chassis for supporting the pile frame, a hydraulic hammer, a hinge type carriage for driving the hydraulic hammer to slide on the pile frame, and a telescopic mechanism arranged on the four-wheel chassis for driving the pile frame to vertically and horizontally swing and adjust in a horizontal plane; the pile frame comprises a connecting plate, a swing arm, an upper guide rail, a lower guide rail, a swing arm oil cylinder and a guide rail oil cylinder; one end of the swing arm is hinged with the upper end of the connecting plate, and the other end of the swing arm is hinged with the hinge type sliding frame; the upper end of the lower guide rail is hinged with the upper guide rail, the lower end of the lower guide rail is hinged with the telescopic mechanism, and the hinge type sliding frame slides in a matched manner with the lower guide rail; the upper end of the swing arm oil cylinder is hinged to the middle of the swing arm, and the lower end of the swing arm oil cylinder and the lower end of the connecting plate are hinged to the telescopic mechanism together; the upper end of the guide rail oil cylinder is hinged to the upper end of the upper guide rail, and the lower end of the guide rail oil cylinder is hinged to the telescopic mechanism so as to drive the upper guide rail and the lower guide rail to lift.
The defects of the prior art are as follows: when using this equipment to pile, need the manual work to right the straight calibration to the pile body usually, waste time and energy, need the workman persistence to support the pile body moreover, the workman is located the operation region of hydraulic hammer for a long time, has great ann's distant hidden danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a pile driver for construction, its advantage lies in can carrying out the centre gripping to the pile body and fix, effectively reduces the potential safety hazard that exists in the work progress.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
content of the first master right: the utility model provides a pile driver for construction, includes that four-wheel chassis, vertical setting and fixed connection are in the lower rail pile frame on four-wheel chassis, one end articulate in the upper rail pile frame on lower rail pile frame upper portion, slide and connect in the hinge formula balladeur train of upper rail pile frame and lower rail pile frame and fixed connection in the hydraulic hammer of hinge formula balladeur train and set up the telescopic machanism that is used for driving the adjustment of guide rail pile frame vertically and horizontally swinging in the horizontal plane on four-wheel chassis, the lower rail pile frame is provided with the below that is located the hydraulic hammer and carries out the fixture of centre gripping to the pile body.
Through adopting above-mentioned technical scheme, erect the pile body through the manual work, the lower guideway pile frame is provided with the fixture that carries out the centre gripping to the pile body, realizes pressing from both sides tightly fixed messenger's vertical state to the pile body, need not the workman and continues to support the pile body, can liberate workman's both hands, and when the hydraulic hammer was piled the pile body, the operation area of hydraulic hammer can be kept away from to the workman, effectively reduces the possibility that takes place the accident.
The present invention may be further configured in a preferred embodiment as: be provided with the fixed plate on the four-wheel chassis, fixture including offer in the up end of fixed plate and along the first spout of the length direction extension of fixed plate, slide connect in the first sliding block of first spout, carry out the gripper jaw of centre gripping to the pile body, connect the connecting rod between first sliding block and gripper jaw and drive first sliding block and slide in order to control the first driving piece that the gripper jaw opened and shut, the gripper jaw is including being the first splint and the second splint that the arc set up, the axis of first splint and the axis coincidence of second splint, and first splint and second splint pass through the articulated shaft and articulate on the fixed plate, the connecting rod is provided with two, and the one end of two connecting rods hinges respectively in the both sides of first sliding block and the other end hinges respectively in the lateral wall of first splint, second splint.
By adopting the technical scheme, the first driving piece drives the first sliding piece to slide towards the direction close to the clamping claws, so that the free ends of the first clamping plate and the second clamping plate are driven to rotate towards the opposite directions respectively, the clamping claws are opened, and workers can conveniently plug the erected pile body between the opened clamping claws; the first driving piece drives the first sliding to slide towards the direction away from the clamping jaw, so that the free ends of the first clamping plate and the second clamping plate are driven to rotate towards the direction close to each other respectively, and the pile body is clamped and fixed.
The present invention may be further configured in a preferred embodiment as: the first driving piece is a first hydraulic oil cylinder, the end part of a piston rod of the first hydraulic oil cylinder is fixedly connected to the side face of the sliding block, and a cylinder body of the first hydraulic oil cylinder is fixedly connected to the upper end face of the fixing plate.
By adopting the technical scheme, the piston rod of the first hydraulic oil cylinder extends to drive the first sliding block to slide towards the direction close to the clamping jaw, so that the clamping jaw is opened; the piston rod of the first hydraulic oil cylinder contracts to drive the first sliding block to slide towards the direction away from the clamping jaw, so that the clamping jaw clamps the pile body.
The present invention may be further configured in a preferred embodiment as: the inside wall of first splint, second splint all is equipped with along the blind hole of first splint, the radial extension of second splint, places the blind hole in and rotates around self axis and connect in the rotation wheel of blind hole inner wall, the blind hole just winds the axis equipartition of first splint, second splint along the axis direction equipartition of first splint, rotates the axis direction of wheel and is parallel with the circumference tangential direction of first splint, second splint.
Through adopting above-mentioned technical scheme, first splint, second splint are provided with the blind hole and place the rotation wheel in the blind hole in, and when the hydraulic hammer carries out pile operation to the pile body, the pile body drives the rotation wheel when sliding downwards and rotates, and the friction that becomes to slide is rolling friction, effectively reduces the frictional force between first splint inside wall, second splint inside wall and the pile body perisporium, effectively reduces the wearing and tearing of first splint, second splint, improves the life of gripper jaw.
The present invention may be further configured in a preferred embodiment as: first splint, second splint all are equipped with and slide along the blind hole extending direction and connect in the mount of blind hole and the compression spring of fixed connection between mount and blind hole inner wall, the mount is close to pile body one side and has seted up the mounting groove, and the dead lever that the level set up is worn to establish by the mounting groove internal fixation, place the mounting groove in the rotation wheel and rotate the cover and locate the dead lever, compression spring's one end fixed connection in blind hole inner wall, other end fixed connection keeps away from the lateral wall of rotating the wheel in the mount.
Through adopting above-mentioned technical scheme, the mount improves the installation base member for rotating the wheel, be fixed with compression spring between mount and the blind hole inner wall, first splint, when the second splint with the pile body centre gripping, thereby force the mount to slide towards deviating from the pile body direction and compress compression spring, compression spring has elastic potential energy, on the one hand, exert the clamp force towards being close to the pile body direction to the rotating wheel, have certain tight fixed action of clamp to the pile body, on the other hand, effectively slow down the impulsive force that produces at the fender pile at the pile driving in-process, effectively prevent the first splint of global direct contact of fender pile, the rigid surface of second splint causes the damage of gripper jaw.
The present invention may be further configured in a preferred embodiment as: the cross sectional shape of blind hole is square, the second spout that extends along blind hole extending direction is seted up to the lateral wall of blind hole, the side protrusion of mount is provided with the second sliding block that slides and connects in the second spout.
Through adopting above-mentioned technical scheme, the second spout has been seted up to the blind hole, and the mount protrusion is provided with the second sliding block, guarantees that the mount slides steadily.
The present invention may be further configured in a preferred embodiment as: the lower guide rail pile frame is provided with a third sliding groove extending vertically, the fixing plate is provided with a third sliding block connected to the third sliding groove in a sliding mode, and a second driving piece for driving the fixing plate to slide vertically is arranged on the four-wheel chassis.
Through adopting above-mentioned technical scheme, second driving piece drive fixed plate slides along vertical to drive the regulation that the centre gripping claw carried out the high position, be convenient for carry out the centre gripping to the pile body of different length dimensions, effectively prevent that the pile body from taking place the slope.
The present invention may be further configured in a preferred embodiment as: the second driving piece is a second hydraulic cylinder, the second hydraulic cylinder is provided with a plurality of annular fixing plates which are distributed in the circumferential direction, the end part of a piston rod of the second hydraulic cylinder is fixedly connected to the lower end face of each fixing plate, and a cylinder body of the second hydraulic cylinder is fixedly connected to the upper end face of the four-wheel chassis.
Through adopting above-mentioned technical scheme, the second hydraulic cylinder is provided with a plurality ofly, guarantees to carry out the stationarity that goes up and down, improves the structural strength of fixed plate, prevents effectively that the fixed plate from taking place the slope, leads to the stationary dog to take place the slope, influences the pile precision.
To sum up, the utility model discloses a following at least one useful technological effect:
the pile body is erected manually, the lower guide rail pile frame is provided with a clamping mechanism for clamping the pile body, the pile body is clamped and fixed to be kept in a vertical state, workers do not need to continuously support the pile body, the hands of the workers can be released, when the hydraulic hammer drives the pile body, the workers can be far away from the operation area of the hydraulic hammer, and the possibility of accidents is effectively reduced;
the first clamping plate and the second clamping plate are provided with blind holes and rotating wheels arranged in the blind holes, when a hydraulic hammer drives a pile body to perform piling operation, the rotating wheels are driven to rotate when the pile body slides downwards, sliding friction is changed into rolling friction, friction between the inner side wall of the first clamping plate and the inner side wall of the second clamping plate and the peripheral wall of the pile body is effectively reduced, abrasion of the first clamping plate and the second clamping plate is effectively reduced, and the service life of the clamping claw is prolonged;
the second driving piece drives the fixing plate to slide along the vertical direction, so that the clamping claws are driven to adjust the height position, the pile bodies with different length sizes are conveniently clamped, and the inclination of the pile bodies is effectively prevented.
Drawings
Fig. 1 is a schematic structural diagram of a pile driver for building construction in an embodiment;
FIG. 2 is a schematic structural view of a chucking mechanism in the embodiment;
fig. 3 is an exploded view of the structure of the first clamping plate in the embodiment.
In the figure, 1, a four-wheel chassis; 11. a fixing plate; 12. a second driving member; 13. a fixed block; 14. a third slider; 15. a cab; 16. a wheel; 2. a lower guide rail pile frame; 21. a third chute; 3. an upper guide rail pile frame; 4. a hinge-type carriage; 5. a hydraulic hammer; 6. a telescoping mechanism; 7. a clamping mechanism; 71. a first chute; 72. a first slider; 73. a connecting rod; 74. a gripper jaw; 741. a first splint; 742. a second splint; 75. a first driving member; 76. hinging a shaft; 8. a pile body; 91. blind holes; 911. a second chute; 92. a fixed mount; 921. mounting grooves; 922. fixing the rod; 923. a second slider; 93. a rotating wheel; 94. compressing the spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a pile driver for construction, including four-wheel chassis 1, vertical setting and fixed connection in the lower rail pile frame 2 of four-wheel chassis 1, one end articulates in the upper rail pile frame 3 on the upper portion of lower rail pile frame 2, slide and connect in the hinge formula balladeur train 4 and the fixed connection of upper rail pile frame 3 and lower rail pile frame 2 and the hydraulic hammer 5 of fixed connection in hinge formula balladeur train 4 and set up on four-wheel chassis 1 and be used for driving the telescopic machanism 6 that upper rail pile frame 3 moved about freely and quickly in the horizontal plane, wherein, hinge formula balladeur train 4 and telescopic machanism 6 are the open technology in the background art, do not describe in detail. The upper end surface of the four-wheel chassis 1 is provided with a cab and a fixing plate 11 positioned in front of the cab, the telescopic mechanism 6 is positioned in front of the cab 15, and the lower end surface of the four-wheel chassis 1 is provided with wheels 16.
Referring to fig. 1 and 2, the lower rail pile frame 2 is provided with a clamping mechanism 7 which is located below the hydraulic hammer 5 and clamps the pile body 8, and the clamping mechanism 7 includes a first sliding groove 71 which is provided on the upper end surface of the fixing plate 11 and extends along the length direction of the fixing plate 11, a first sliding block 72 which is slidably connected to the first sliding groove 71, a clamping claw 74 which clamps the pile body 8, a connecting rod 73 which is connected between the first sliding block 72 and the clamping claw 74, and a first driving member 75 which drives the first sliding block 72 to slidably move so as to control the opening and closing of the clamping claw 74. The first driving member 75 is a first hydraulic cylinder, the end of a piston rod of the first hydraulic cylinder is fixedly connected to the side surface of the sliding block 72 far away from the clamping claw 74, and the cylinder body of the first hydraulic cylinder is fixedly connected to the upper end surface of the fixed plate 11. The clamping jaw 74 includes a first clamping plate 741 and a second clamping plate 742 which are arranged in an arc shape and symmetrically, the axis of the first clamping plate 741 and the axis of the second clamping plate 742 coincide, the first clamping plate 741 and the second clamping plate 742 are hinged to the upper end face of the fixing plate 11 close to the lower guide rail pile frame 2 through a hinge shaft 76, the two connecting rods 73 are provided, one ends of the two connecting rods 73 are hinged to two sides of the first sliding block 72, and the other ends of the two connecting rods 73 are hinged to the outer side walls of the first clamping plate 741 and the second clamping plate 742 respectively.
Referring to fig. 2 and 3, the inner side walls of the first clamping plate 741 and the second clamping plate 742 are respectively provided with a square blind hole 91 extending along the radial direction of the first clamping plate 741 and the second clamping plate 742, a fixed frame 92 connected to the blind hole 91 in a sliding manner along the extending direction of the blind hole 91, a rotating wheel 93 connected to the fixed frame 92 in a rotating manner around the axis thereof, and a compression spring 94 fixedly connected between the fixed frame 92 and the inner wall of the blind hole 91. The blind holes 91 are uniformly distributed along the axial direction of the first clamping plate 741 and uniformly distributed around the axial lines of the first clamping plate 741 and the second clamping plate 742, and the axial direction of the rotating wheel 93 is parallel to the circumferential tangential direction of the first clamping plate 741 and the second clamping plate 742. Mounting bracket 92 is close to 8 one sides of stake and has seted up mounting groove 921, and the dead lever 922 that the level set up is worn to establish by the internal fixation of mounting groove 921, places mounting groove 921 in the rotation wheel 93 and rotates the cover and locate dead lever 922, and compression spring 94's one end fixed connection is in blind hole 91 inner wall, and other end fixed connection keeps away from the lateral wall that rotates wheel 93 in mounting bracket 92. The second spout 911 that extends along blind hole 91 extending direction is seted up to the lateral wall of blind hole 91, and the side protrusion of mount 92 is provided with the second sliding block 923 of sliding connection in second spout 911.
Referring to fig. 1 and 2, the lower guide rail pile frame 2 is provided with a third sliding groove 21 extending vertically, the fixing plate 11 is provided with a third sliding block 14 connected to the third sliding groove 21 in a sliding manner, the four-wheel chassis 1 is provided with a second driving part 12 for driving the fixing plate 11 to slide vertically, the second driving part 12 is a second hydraulic cylinder, the second hydraulic cylinder is provided with four fixing plates 11 distributed circumferentially, the end part of a piston rod of the second hydraulic cylinder is fixedly connected to the lower end face of the fixing plate 11, the cylinder body of the second hydraulic cylinder is fixedly connected to the upper end face of the four-wheel chassis 1, the piston rod of the second hydraulic cylinder stretches and retracts to adjust the fixing plate 11 to lift vertically, so that pile bodies 8 with different length sizes can be clamped conveniently, and the pile bodies 8 are effectively prevented from inclining.
The implementation principle of the embodiment is as follows: the piston rod of the first hydraulic cylinder extends to drive the first sliding block 72 to slide towards the direction close to the clamping claw 74 so as to drive the free ends of the first clamping plate 741 and the second clamping plate 742 to rotate towards the opposite direction respectively, so that the clamping claw 74 is opened, and a worker can conveniently plug the erected pile 8 into the opened clamping claw 74; the piston rod of the first hydraulic cylinder extends to drive the first sliding to slide towards the direction away from the clamping jaw 74, so that the free ends of the first clamping plate 741 and the second clamping plate 742 are driven to rotate towards the approaching direction respectively, the pile body 8 is clamped and fixed, the vertical state of the pile body 8 is kept, a worker does not need to continue to support the pile body 8, the hands of the worker can be liberated, when the hydraulic hammer 5 piles the pile body 8, the worker can keep away from the operation area of the hydraulic hammer 5, and the possibility of accidents is effectively reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a pile driver for construction, including four-wheel chassis (1), vertical setting and fixed connection are in lower guide rail pile frame (2) on four-wheel chassis (1), one end articulates in upper guide rail pile frame (3) on lower guide rail pile frame (2) upper portion, slide and connect in hinge formula balladeur train (4) and fixed connection of upper guide rail pile frame (3) and lower guide rail pile frame (2) the hydraulic hammer (5) of hinge formula balladeur train (4) and set up on four-wheel chassis (1) and be used for driving telescopic machanism (6) that upper guide rail pile frame (3) vertically and horizontally swung the adjustment in the horizontal plane, its characterized in that: the lower guide rail pile frame (2) is provided with a clamping mechanism (7) which is positioned below the hydraulic hammer (5) and clamps the pile body (8).
2. Pile driver for building construction according to claim 1, characterised in that: the four-wheel chassis (1) is provided with a fixing plate (11), the clamping mechanism (7) comprises a first sliding groove (71) which is arranged on the upper end face of the fixing plate (11) and extends along the length direction of the fixing plate (11), a first sliding block (72) which is connected to the first sliding groove (71) in a sliding manner, a clamping claw (74) which clamps the pile body (8), a connecting rod (73) which is connected between the first sliding block (72) and the clamping claw (74), and a first driving piece (75) which drives the first sliding block (72) to slide so as to control the clamping claw (74) to open and close, the clamping claw (74) comprises a first clamping plate (741) and a second clamping plate (742) which are arranged in an arc shape, the axis of the first clamping plate (741) is overlapped with the axis of the second clamping plate (742), and the first clamping plate (741) and the second clamping plate (742) are hinged to the fixing plate (11) through a hinge shaft (76, the connecting rods (73) are provided with two, one ends of the two connecting rods (73) are respectively hinged to two sides of the first sliding block (72), and the other ends of the two connecting rods (73) are respectively hinged to the outer side walls of the first clamping plate (741) and the second clamping plate (742).
3. Pile driver for building construction according to claim 2, characterised in that: the first driving piece (75) is a first hydraulic oil cylinder, the end part of a piston rod of the first hydraulic oil cylinder is fixedly connected to the side surface of the sliding block (72), and a cylinder body of the first hydraulic oil cylinder is fixedly connected to the upper end surface of the fixing plate (11).
4. A pile driver for construction according to claim 3, characterised in that: the inner side walls of the first clamping plate (741) and the second clamping plate (742) are provided with blind holes (91) extending along the radial direction of the first clamping plate (741) and the second clamping plate (742), and rotating wheels (93) arranged in the blind holes (91) and connected to the inner wall of the blind holes (91) in a rotating mode around the axis of the blind holes, the blind holes (91) are uniformly distributed along the axis direction of the first clamping plate (741) and uniformly distributed around the axes of the first clamping plate (741) and the second clamping plate (742), and the axis direction of the rotating wheels (93) is parallel to the circumferential tangent direction of the first clamping plate (741) and the second clamping plate (742).
5. Pile driver for building construction according to claim 4, characterised in that: first splint (741), second splint (742) all are equipped with along blind hole (91) extending direction slide and connect mount (92) and fixed connection in between mount (92) and blind hole (91) inner wall of blind hole (91) compression spring (94), mounting bracket (92) are close to pile body (8) one side and have seted up mounting groove (921), and mounting groove (921) internal fixation wears to be equipped with dead lever (922) that the level set up, place mounting groove (921) in rotation wheel (93) and rotate the cover and locate dead lever (922), the one end fixed connection of compression spring (94) in blind hole (91) inner wall, other end fixed connection keeps away from the lateral wall that rotates wheel (93) in mount (92).
6. Pile driver for building construction according to claim 5, characterised in that: the cross sectional shape of blind hole (91) is square, second spout (911) that extend along blind hole (91) extending direction are seted up to the lateral wall of blind hole (91), the side protrusion of mount (92) is provided with second sliding block (923) of sliding connection in second spout (911).
7. Pile driver for building construction according to claim 1 or 6, characterised in that: lower rail pile frame (2) are equipped with along vertical extension's third spout (21), and fixed plate (11) are provided with third sliding block (14) of sliding connection in third spout (21), be provided with on four-wheel chassis (1) drive fixed plate (11) along vertical second driving piece (12) that slide.
8. Pile driver for building construction according to claim 7, characterised in that: the second driving part (12) is a second hydraulic cylinder, the second hydraulic cylinder is provided with a plurality of annular fixing plates (11) which are distributed in the circumferential direction, the end part of a piston rod of the second hydraulic cylinder is fixedly connected to the lower end face of the fixing plates (11), and a cylinder body of the second hydraulic cylinder is fixedly connected to the upper end face of the four-wheel chassis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020097469.2U CN211690335U (en) | 2020-01-16 | 2020-01-16 | Pile driver for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020097469.2U CN211690335U (en) | 2020-01-16 | 2020-01-16 | Pile driver for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211690335U true CN211690335U (en) | 2020-10-16 |
Family
ID=72772562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020097469.2U Expired - Fee Related CN211690335U (en) | 2020-01-16 | 2020-01-16 | Pile driver for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211690335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482524A (en) * | 2021-07-26 | 2021-10-08 | 訾慧敏 | Drilling device for mine exploration and using method thereof |
-
2020
- 2020-01-16 CN CN202020097469.2U patent/CN211690335U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482524A (en) * | 2021-07-26 | 2021-10-08 | 訾慧敏 | Drilling device for mine exploration and using method thereof |
| CN113482524B (en) * | 2021-07-26 | 2023-08-22 | 訾慧敏 | Drilling device for mine exploration and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210805 Address after: 362000 2204, building 8, Qiaonan Huayuan, Wan'an Qiaonan community, Luojiang District, Quanzhou City, Fujian Province Patentee after: Fujian Zhongan Construction Development Co.,Ltd. Address before: 362000 Guantou Hechang feed factory, Luojiang District, Quanzhou City, Fujian Province Patentee before: Quanzhou lumingda transportation facilities Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20220116 |