CN112046560A - Building shallow that civil engineering used - Google Patents
Building shallow that civil engineering used Download PDFInfo
- Publication number
- CN112046560A CN112046560A CN202010895947.9A CN202010895947A CN112046560A CN 112046560 A CN112046560 A CN 112046560A CN 202010895947 A CN202010895947 A CN 202010895947A CN 112046560 A CN112046560 A CN 112046560A
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- Prior art keywords
- welded
- extrusion cylinder
- cart
- driving shaft
- civil engineering
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/10—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0066—Transmission of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/04—Braking mechanisms; Locking devices against movement
- B62B5/0438—Braking mechanisms; Locking devices against movement hand operated
- B62B5/0447—Braking mechanisms; Locking devices against movement hand operated using elements cooperating with a handle bar
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a construction trolley for civil engineering, which belongs to the technical field of civil engineering and comprises a trolley body, wherein a driving shaft is inserted between two hinged plates, two ends of the driving shaft extend to the outer sides of the hinged plates and are rotatably connected with walking wheels, a single bearing is sleeved at the middle position of the driving shaft between the two hinged plates, a gear disc is welded on the outer ring of the single bearing, an L-shaped extrusion cylinder is welded at the bottom of the trolley body outside the driving shaft, a piston plate is connected inside the other end of the L-shaped extrusion cylinder in a sliding manner, a clamping strip is welded at the middle position outside the piston plate, a guide pipe is connected at the top of one side of the L-shaped extrusion cylinder, and an extrusion cylinder is transversely welded at the bottom of one trolley handle. The auxiliary cart is convenient for assisting the cart to walk uphill, the intensity of workers is reduced, the cart body is more labor-saving when going uphill, and the cart is convenient to decelerate when going downhill.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a construction trolley for civil engineering.
Background
Civil engineering is a general term of science and technology for building various land engineering facilities, i.e. various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage, protection engineering and the like which are built on the ground or underground or onshore and directly or indirectly serve human life, production, military and scientific research. The civil engineering refers to engineering entities for surveying, planning, designing, constructing, installing and maintaining various technical works and the like of newly-built, reconstructed or expanded buildings, structures, related supporting facilities and the like of various projects except house buildings.
The building cart can be frequently used in the building construction process, so that materials such as cement and sand are transported, the road condition of an uphill slope and a downhill slope cannot be met easily when the building cart is used, a large amount of materials are often accumulated in the cart in the process of the uphill slope, the cart is difficult to push when the uphill slope is formed under the action of gravity, even if the cart is pushed to the uphill slope, the intensity of workers is greatly increased, the labor is not convenient, the impact force of the cart is large in the downhill slope, the impact force of the cart is easy to cause, and the impact force is too fast to cause impact on the back of a user, so that the safety of the user is influenced.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a construction cart for civil engineering, which is convenient for assisting a cart to walk uphill and reducing the intensity of workers, so that the cart body is more labor-saving when ascending a slope, and is convenient for decelerating the cart when descending the slope.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
a construction trolley for civil engineering comprises a trolley body, wherein two trolley handles are transversely welded at one end of the trolley body, hinged plates are welded on two sides of the middle position of the bottom of the trolley body, a driving shaft is inserted between the two hinged plates, the hinged plates are sleeved on the driving shaft through a bearing, and two ends of the driving shaft extend to the outer sides of the hinged plates and are rotatably connected with travelling wheels;
a single bearing is sleeved at the middle position of a driving shaft between the two hinged plates, a gear plate is welded on the outer ring of the single bearing, an L-shaped extrusion cylinder is welded at the bottom of a trolley body outside the driving shaft, a piston plate is connected to the inside of the other end of the L-shaped extrusion cylinder in a sliding mode, a clamping strip is welded at the middle position of the outside of the piston plate, one end of the clamping strip penetrates through the end part of the other end of the L-shaped extrusion cylinder, a guide pipe is connected to the top of one side of the L-shaped extrusion cylinder, the extrusion cylinder is welded at the bottom of one trolley handle in the transverse direction, one end of the extrusion cylinder is communicated with the other end of the guide pipe, a threaded rod is connected to the other end of the extrusion cylinder in a transverse rotating mode, a piston block is welded inside the extrusion cylinder at one end of the;
the drive shaft of toothed disc both sides all is equipped with U type fixed block through the bearing housing, and uses the drive shaft to weld as the equidistant welding of centre of a circle in the inboard drive shaft of U type fixed block has first trapezoidal piece, the inboard top welding of U type fixed block has spacing box, and the inside welding of spacing box has second reset spring, the other end welding of second reset spring has second trapezoidal piece, and the other end of second trapezoidal piece extends to the bottom outside of spacing box and inconsistent with first trapezoidal piece, the arc telescopic link is installed at the top of U type fixed block, and the sleeve bottom of arc telescopic link welds each other with the bottom of shallow body.
Preferably, the outer end of the clamping strip is in a tooth-shaped structure meshed with the outer teeth of the gear plate.
Preferably, the threaded rod extends to the end part of the extrusion container inside the extrusion container, a through hole matched with the threaded rod is formed in the end part of the extrusion container, and an internal thread matched with the external thread of the threaded rod is arranged on the inner side wall of the through hole.
Preferably, the extrusion cylinder, the guide pipe and the L-shaped extrusion cylinder are all internally stored with hydraulic oil.
Preferably, a first return spring is sleeved on the clamping strip inside the L-shaped extrusion container.
Preferably, the single-phase bearing rotates clockwise to be in a locking state, and rotates anticlockwise to be in a free state
3. Advantageous effects
(1) When the cart body ascends, the handle is rotated manually, the threaded rod pushes the piston block to inject hydraulic oil in the extrusion cylinder into the L-shaped extrusion cylinder through the guide pipe, and the piston plate at one end of the L-shaped extrusion cylinder drives the clamping strip to move towards the right side and insert into the tooth groove of the gear disc, so that the clamping strip is meshed with teeth on the gear disc, an operator can repeatedly lift the cart handle at the moment, when the cart handle is lifted upwards, the front end of the cart body moves downwards along the circumferential motion of the driving shaft due to the mutual meshing of the clamping strip and the gear disc, the L-shaped extrusion cylinder and the clamping strip synchronously drive the gear disc to rotate clockwise, the gear disc is sleeved on the driving shaft through the single bearing, and the outer ring of the single bearing is in a locking state when rotating clockwise, namely the gear disc is equivalent to be fixedly arranged on the driving shaft, so that the driving shaft rotates clockwise to drive the travelling wheel to advance, when the cart handle moves downwards, the front end of the cart body moves upwards along the driving shaft in a circular motion manner, the L-shaped extrusion cylinder and the clamping strip are synchronously driven to drive the gear disc to rotate anticlockwise, the outer ring of the single bearing is in a free state when rotating anticlockwise, namely, the gear disc is rather mounted on the driving shaft through a common bearing, the driving shaft cannot be driven to rotate at the moment, meanwhile, the first trapezoidal block and the second trapezoidal block which are uniformly welded on the driving shaft are matched, when the driving shaft rotates clockwise, the inclined surfaces of the first trapezoidal block and the second trapezoidal block are mutually corresponding to push the second trapezoidal block to move towards the inside of the limiting box, so that the driving shaft and the traveling wheels can travel forwards, the cart body easily slides downwards when ascending, at the moment, the vertical surface of the second trapezoidal block is abutted against the vertical surface of the first trapezoidal block to prevent the driving shaft from rotating anticlockwise, and the traveling wheels are driven to continuously advance upwards by, simultaneously, the supporting points of the cart body and the cart handle and the supporting points of the L-shaped extrusion barrels are arranged on the driving shaft, so that the force arm of the cart handle is longer, the lifting and descending processes of the cart handle are more labor-saving, the cart body can swing up and down in a small range by utilizing a lever principle conveniently in the process of ascending, the cart body is assisted to walk up the slope, the intensity of workers is reduced, and the cart is more labor-saving and convenient to use.
(2) In the downhill process, when a user holds the cart handle with two hands to push the cart body downwards, the cart handle can be swung up and down to drive the cart body to go downhill, and meanwhile, the cart handle is swung up and down in the downhill process to slowly go downhill and decelerate the cart body, so that the situation that the impact force generated when the cart body goes downhill is too fast causes injury to the user is prevented, and the safety index of the user is improved.
In conclusion, on one hand, the driving shaft and the traveling wheels are driven to travel forwards on an upslope by the upward and downward swinging of the cart handle and the utilization of the mutual meshing relationship between the clamping strips and the gear disc in the upslope process, the cart body is convenient to swing up and down in a small range by utilizing a lever principle in the upslope process, the upslope traveling of the cart body is assisted, the intensity of workers is reduced, the cart body is more labor-saving on the upslope, on the other hand, the cart body is decelerated by the upward and downward swinging of the cart handle and the mutual meshing relationship between the clamping strips and the gear disc in the downslope process, the impact force of the cart body on the back of a user is prevented from being impacted too fast, and the safety index.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the internal structure of the L-shaped container of the present invention;
fig. 4 is a schematic side view of the U-shaped fixing block according to the present invention.
Reference numerals: 1. a cart body; 2. a cart handle; 3. rotating the handle; 4. a threaded rod; 5. a piston block; 6. an extrusion cylinder; 7. a guide tube; 8. a traveling wheel; 9. a hinge plate; 10. a gear plate; 11. a drive shaft; 12. a single bearing; 13. an L-shaped extrusion cylinder; 14. a piston plate; 15. a first return spring; 16. clamping the strip; 17. a first trapezoidal block; 18. a U-shaped fixing block; 19. a limiting box; 20. an arc-shaped telescopic rod; 21. a second return spring; 22. a second trapezoidal block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
The construction cart for civil engineering shown in fig. 1-4 comprises a cart body 1, wherein two cart handles 2 are transversely welded at one end of the cart body 1, hinged plates 9 are welded at two sides of the middle position of the bottom of the cart body 1, a driving shaft 11 is inserted between the two hinged plates 9, the hinged plates 9 are sleeved on the driving shaft 11 through bearings 17, and two ends of the driving shaft 11 extend to the outer sides of the hinged plates 9 and are rotatably connected with travelling wheels 8;
a single bearing 12 is sleeved at the middle position of a driving shaft 11 between two hinged plates 9, the single bearing 12 rotates clockwise to be in a locking state, the single bearing 12 rotates anticlockwise to be in a free state, a gear disc 10 is welded on the outer ring of the single bearing 12, an L-shaped extrusion barrel 13 is welded at the bottom of a trolley body 1 on the outer side of the driving shaft 11, a piston plate 14 is connected inside the other end of the L-shaped extrusion barrel 13 in a sliding mode, a clamping strip 16 is welded at the middle position on the outer side of the piston plate 14, one end of the clamping strip 16 penetrates through the end part of the other end of the L-shaped extrusion barrel 13, a guide pipe 7 is connected to the top of one side of the L-shaped extrusion barrel 13, an extrusion barrel 6 is welded at the bottom of one trolley handle 2 transversely, one end of the extrusion barrel 6 is communicated with the other end of the guide pipe 7, a threaded rod 4 is connected to the other end of the, the other end of the rotating handle 3 is welded with the rotating handle 3;
the driving shafts 11 on two sides of the gear disc 10 are all sleeved with U-shaped fixing blocks 18 through bearings, first trapezoidal blocks 17 are welded on the driving shafts 11 on the inner sides of the U-shaped fixing blocks 18 at equal intervals by taking the driving shafts 11 as circle centers, limiting boxes 19 are welded on the top of the inner sides of the U-shaped fixing blocks 18, second reset springs 21 are welded inside the limiting boxes 19, second trapezoidal blocks 22 are welded on the other ends of the second reset springs 21, the other ends of the second trapezoidal blocks 22 extend to the outer sides of the bottoms of the limiting boxes 19 and are abutted to the first trapezoidal blocks 17, arc-shaped telescopic rods 20 are installed on the tops of the U-shaped fixing blocks 18, the sleeve bottoms of the arc-shaped telescopic rods 20 are welded with the bottom of the trolley body 1, the outer ends of the clamping strips 16 are of toothed structures meshed with the outer teeth of the gear disc 10, through holes matched with the threaded rods 4 are formed in the end portions, extending, the inner side wall of the through hole is provided with internal threads matched with the external threads of the threaded rod 4, hydraulic oil is stored in the extrusion cylinder 6, the guide pipe 7 and the L-shaped extrusion cylinder 13, a first return spring 15 is sleeved on a clamping strip 16 in the L-shaped extrusion cylinder 13 to drive a driving shaft 11 and a travelling wheel 8 to travel forwards when going uphill, so that the cart body 1 can swing vertically in a small range by utilizing a lever principle in the uphill process conveniently, the cart body 1 is assisted to travel uphill, the intensity of workers is reduced, the cart body 1 is more labor-saving when going uphill, the cart body 1 is decelerated by swinging the cart handle 2 up and down in a downhill manner and utilizing the mutual meshing relationship between the clamping strip 16 and a gear disc 10, the impact of the cart body 1 on the back of the user is prevented from being caused by too fast impact of the cart body 1, and the safety index of the user is improved;
the driving shafts 11 on two sides of the gear disc 10 are all sleeved with U-shaped fixing blocks 18 through bearings, first trapezoidal blocks 17 are welded on the driving shafts 11 on the inner sides of the U-shaped fixing blocks 18 at equal intervals by taking the driving shafts 11 as circle centers, limiting boxes 19 are welded on the top of the inner sides of the U-shaped fixing blocks 18, second reset springs 21 are welded inside the limiting boxes 19, second trapezoidal blocks 22 are welded on the other ends of the second reset springs 21, the other ends of the second trapezoidal blocks 22 extend to the outer sides of the bottoms of the limiting boxes 19 and are abutted to the first trapezoidal blocks 17, arc-shaped telescopic rods 20 are installed on the tops of the U-shaped fixing blocks 18, the bottoms of the sleeves of the arc-shaped telescopic rods 20 are welded with the bottom of the trolley body 1, the first trapezoidal blocks 17 rotate together due to the anticlockwise rotation of the driving shafts 11 and the travelling wheels 8, and the inclined planes of the second trapezoidal blocks 22 correspond, thereby when first trapezoidal piece 17 inclined plane and second trapezoidal piece 22 inclined plane contact, second trapezoidal piece 22 is to the inside shrink of spacing box 19 to utilize second reset spring 21's elasticity to reset second trapezoidal piece 22 after first trapezoidal piece 17 passes through, conflict each other with second trapezoidal piece 22's the back through the back of first trapezoidal piece 17 after simultaneously, make drive shaft 11 can't carry out clockwise rotation, prevent that shallow body 1 from rotating clockwise drive shaft 11 when going up a slope and causing the landslide.
The concrete action principle of the building cart for civil engineering is as follows:
firstly, when the cart body 1 goes up a slope, the handle 3 can be rotated manually, the threaded rod 4 pushes the piston block 5 to inject the hydraulic oil in the extrusion cylinder 6 into the L-shaped extrusion cylinder 13 through the guide pipe 7, and then the piston plate 14 at one end of the L-shaped extrusion cylinder 13 drives the clamping strip 16 to move towards the right side and insert into the tooth socket of the gear disc 10, so that the clamping strip 16 is meshed with the teeth on the gear disc 10, at the moment, an operator can repeatedly lift the cart handle 2, when the cart handle 2 is lifted upwards, the clamping strip 16 is meshed with the gear disc 10, so that the front end of the cart body 1 makes a circular motion and moves downwards along the driving shaft 11, the L-shaped extrusion cylinder 13 and the clamping strip 16 synchronously drive the gear disc 10 to rotate clockwise, because the gear disc 10 is sleeved on the driving shaft 11 through the single bearing 12, and the outer ring of the single bearing 12 is in a locking state when rotating clockwise, namely, the gear disc 10 is fixedly mounted on the driving shaft 11, so that the driving shaft 11 rotates clockwise to drive the traveling wheels 8 to move forward, when the cart handle 2 moves downward, the front end of the cart body 1 moves upward along the driving shaft 11 in a circular motion, the L-shaped extrusion cylinder 13 and the clamping strip 16 drive the gear disc 10 to rotate counterclockwise synchronously, because the outer ring of the single bearing 12 rotates counterclockwise, the gear disc 10 is free, namely, the gear disc 10 is mounted on the driving shaft 11 through a common bearing, the driving shaft 11 is not driven to rotate at the moment, and simultaneously, the first trapezoidal block 17 and the second trapezoidal block 22 which are uniformly welded on the driving shaft 11 are matched, when the driving shaft 11 rotates clockwise, the inclined surfaces of the first trapezoidal block 17 and the second trapezoidal block 22 correspond to each other to push the second trapezoidal block 22 to move towards the inside of the limiting box 19, so that the driving shaft 11 and the traveling wheels 8 can travel, because the cart body 1 is easy to slide downwards when ascending, at the moment, the vertical surface of the second trapezoidal block 22 is abutted against the vertical surface of the first trapezoidal block 17 to prevent the driving shaft 11 from rotating anticlockwise, so that the driving wheel 8 is repeatedly lifted and driven to continuously advance to ascend, and meanwhile, the supporting points of the cart body 1 and the cart handle 2 and the supporting point of the L-shaped extrusion cylinder 13 are arranged on the driving shaft 11, so that the force arm of the cart handle 2 is longer, namely, the cart handle 2 is more labor-saving in the lifting and descending processes, the cart body 1 is convenient to swing up and down in a small range by utilizing a lever principle in the ascending process, the cart body 1 is assisted to travel upwards, the intensity of workers is reduced, the labor is more labor-saving, the use is convenient, and meanwhile, when a user holds the cart handle 2 by two hands to push the cart body 1 downwards in the descending process, the cart handle 2 can, according to the steps, the cart body 1 is driven to descend, and meanwhile, the cart handle 2 swings up and down in the descending process to enable the cart handle to descend slowly, so that the cart body 1 is decelerated, the situation that the impact force generated when the cart body 1 descends is too fast causes injury to a user is prevented, the safety index of the user is improved, when the cart runs on a normal road section, the handle 3 can rotate in the reverse direction, the clamping strip 16 is separated from the gear disc 10 under the action of the first return spring 15, and the cart body 1 can be pushed normally to use.
From the above, on one hand, the driving shaft 11 and the traveling wheels 8 are driven to travel forward on an upslope by swinging the cart handle 2 up and down in the upslope process and utilizing the mutual meshing relationship between the clamping strips 16 and the gear disc 10, the small-range vertical swinging cart body 1 based on the lever principle is convenient to use in the upslope process, the cart body 1 is assisted to travel on the upslope, the intensity of workers is reduced, and the cart body 1 is more labor-saving on the upslope, on the other hand, the cart body 1 is decelerated by swinging the cart handle 2 up and down in the downslope process and utilizing the mutual meshing relationship between the clamping strips 16 and the gear disc 10, so that the impact of the cart body 1 on the back of a user is prevented from being impacted too fast, and the safety index of the user is improved.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. The building cart for civil engineering is characterized by comprising a cart body (1), wherein two cart handles (2) are transversely welded at one end of the cart body (1), hinged plates (9) are welded at two sides of the middle position of the bottom of the cart body (1), a driving shaft (11) is inserted between the two hinged plates (9), the hinged plates (9) are sleeved on the driving shaft (11) through bearings (17), and two ends of the driving shaft (11) extend to the outer sides of the hinged plates (9) and are rotatably connected with traveling wheels (8);
a single bearing (12) is sleeved at the middle position of a driving shaft (11) between the two hinged plates (9), a gear plate (10) is welded on the outer ring of the single bearing (12), an L-shaped extrusion cylinder (13) is welded at the bottom of a trolley body (1) outside the driving shaft (11), a piston plate (14) is connected to the inner part of the other end of the L-shaped extrusion cylinder (13) in a sliding manner, a clamping strip (16) is welded at the middle position outside the piston plate (14), one end of the clamping strip (16) penetrates through the end part of the other end of the L-shaped extrusion cylinder (13), a guide pipe (7) is connected to the top of one side of the L-shaped extrusion cylinder (13), one of the two hinged plates is welded with the extrusion cylinder (6) at the bottom in a transverse direction, one end of the extrusion cylinder (6) is communicated with the other end of the guide pipe (7), and a threaded rod (4) is connected to the other end, one end of the threaded rod (4) extends to the inside of the extrusion cylinder (6) and is welded with a piston block (5), and the other end of the rotating handle (3) is welded with the rotating handle (3);
drive shaft (11) of gear dish (10) both sides all are through bearing housing U type fixed block (18), and use drive shaft (11) to weld as centre of a circle equidistant on drive shaft (11) of U type fixed block (18) inboard has first trapezoidal piece (17), the top welding of U type fixed block (18) inboard has spacing box (19), and the inside welding of spacing box (19) has second reset spring (21), the other end welding of second reset spring (21) has second trapezoidal piece (22), and the other end of second trapezoidal piece (22) extends to the bottom outside of spacing box (19) and inconsistent with first trapezoidal piece (17), arc telescopic link (20) are installed at the top of U type fixed block (18), and the sleeve bottom of arc telescopic link (20) and the bottom of shallow body (1) weld each other.
2. The construction trolley for civil engineering according to claim 1, characterized in that the outer end of the blocking strip (16) presents a toothed structure which meshes with the outer teeth of the toothed disc (10).
3. The construction trolley for civil engineering according to claim 1, characterized in that the end of the container (6) where the threaded rod (4) extends inside the container (6) is provided with a through hole which is matched with the threaded rod (4), and the inner side wall of the through hole is provided with an inner thread which is matched with the outer thread of the threaded rod (4).
4. The construction trolley for civil engineering according to claim 1, characterized in that the extrusion cylinder (6), the guide tube (7) and the L-shaped extrusion cylinder (13) are internally filled with hydraulic oil.
5. The construction trolley for civil engineering according to claim 1, characterized in that the first return spring (15) is housed on the snap strip (16) inside the L-shaped extrusion container (13).
6. Construction trolley as claimed in claim 1, characterized in that the single-phase bearing (12) rotates clockwise in the locked condition and counterclockwise in the free condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895947.9A CN112046560A (en) | 2020-08-31 | 2020-08-31 | Building shallow that civil engineering used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895947.9A CN112046560A (en) | 2020-08-31 | 2020-08-31 | Building shallow that civil engineering used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112046560A true CN112046560A (en) | 2020-12-08 |
Family
ID=73606676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010895947.9A Withdrawn CN112046560A (en) | 2020-08-31 | 2020-08-31 | Building shallow that civil engineering used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112046560A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941384A (en) * | 2021-11-21 | 2022-01-18 | 洛阳职业技术学院 | Capsule type secondary centrifuge tube capable of being applied to rapid nondestructive analysis |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2582606A1 (en) * | 1985-03-20 | 1986-12-05 | Berducone Dominique | Trolley with manual traction provided with means for preventing jolts when mounting or descending stairs |
| CN86205509U (en) * | 1986-07-30 | 1987-03-18 | 王允钦 | Barrow with ratchet wheel and brake gear |
| CN2040470U (en) * | 1988-07-28 | 1989-07-05 | 杨德生 | Labour saving handcart for climbing slope |
| JPH07117676A (en) * | 1993-10-20 | 1995-05-09 | Yoshihiro Nishimura | Vehicle for ascent and descent equipped with ratchet device |
| CN2913172Y (en) * | 2006-05-25 | 2007-06-20 | 金立成 | Drive of motor-driven cycle |
-
2020
- 2020-08-31 CN CN202010895947.9A patent/CN112046560A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2582606A1 (en) * | 1985-03-20 | 1986-12-05 | Berducone Dominique | Trolley with manual traction provided with means for preventing jolts when mounting or descending stairs |
| CN86205509U (en) * | 1986-07-30 | 1987-03-18 | 王允钦 | Barrow with ratchet wheel and brake gear |
| CN2040470U (en) * | 1988-07-28 | 1989-07-05 | 杨德生 | Labour saving handcart for climbing slope |
| JPH07117676A (en) * | 1993-10-20 | 1995-05-09 | Yoshihiro Nishimura | Vehicle for ascent and descent equipped with ratchet device |
| CN2913172Y (en) * | 2006-05-25 | 2007-06-20 | 金立成 | Drive of motor-driven cycle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941384A (en) * | 2021-11-21 | 2022-01-18 | 洛阳职业技术学院 | Capsule type secondary centrifuge tube capable of being applied to rapid nondestructive analysis |
| CN113941384B (en) * | 2021-11-21 | 2022-11-01 | 洛阳职业技术学院 | Capsule type secondary centrifuge tube capable of being applied to rapid nondestructive analysis |
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