CN112046558A - Building shallow convenient to go up laborsaving of downhill path - Google Patents
Building shallow convenient to go up laborsaving of downhill path Download PDFInfo
- Publication number
- CN112046558A CN112046558A CN202010894918.0A CN202010894918A CN112046558A CN 112046558 A CN112046558 A CN 112046558A CN 202010894918 A CN202010894918 A CN 202010894918A CN 112046558 A CN112046558 A CN 112046558A
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- cart
- welding
- welded
- driving shaft
- recipient
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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 cart convenient for ascending and descending with labor saving, which belongs to the technical field of construction engineering and comprises a cart body, wherein two cart handles are transversely welded at one end of the cart body, 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 traveling wheels, a first 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 first single bearing, an L-shaped extrusion cylinder is welded at the bottom of the connecting plate, a guide pipe is connected to the top of one side of the L-shaped extrusion cylinder, two connecting rods extend to the inner side of the end part of each cart handle, a limiting block is welded on the top of one connecting rod, and the extrusion cylinder is transversely welded at the bottom of one connecting rod. 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 constructional engineering, in particular to a labor-saving construction trolley convenient for climbing up and down a slope.
Background
The construction engineering is an installation engineering of various technical works and completed engineering entities such as planning, surveying, designing, constructing and completing, completing and the like for newly building, reconstructing or extending a housing building and an auxiliary structure facility, and lines, pipelines and equipment matched with the engineering entities, wherein the construction engineering of the housing building comprises a factory building, a theater, a hotel, a shop, a school, a hospital, a residence and the like.
Often can use the shallow of transporting the material in building work progress, thereby to cement, material such as sand is transported, and the road conditions of going up and down the slope can be met to the unavoidable when using the shallow of transporting the material, at the downhill path in-process because the impact force of shallow is great, cause the impulsive force of shallow too fast to cause the striking to user's back easily, influence user's safety, at the in-process on the upslope often because a large amount of materials are piled up to the shallow inside, under the effect of gravity, hardly promote the shallow when going up the slope, even push away the shallow upslope, also greatly increased labourer's intensity, it is inconvenient to laborsaving.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a labor-saving building cart convenient for ascending and descending, 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 and is convenient for decelerating the cart when descending.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
a construction trolley convenient for ascending and descending with labor saving comprises a trolley body, wherein two trolley handles are transversely welded at one end of the trolley body, a support rod is welded at the inner side of the end part between the other ends of the two trolley handles, hinged plates are welded at 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 second single 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 first single bearing is sleeved at the middle position of a driving shaft between the two hinged plates, a gear disc is welded on the outer ring of the first single bearing, a connecting plate is hinged at the bottom of a cart body outside the driving shaft, connecting rods are welded at two ends of the inner side of the connecting plate, a hinged block is welded at the position of the two connecting rods right above the driving shaft and sleeved on the driving shaft through the bearing, an L-shaped extrusion cylinder is welded at the bottom of the connecting plate, a piston plate is slidably connected inside the other end of the L-shaped extrusion cylinder, a clamping strip is welded at the middle position of the outer side 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 at the top of one side of the L-shaped extrusion cylinder, the two connecting rods extend to the inner side of the end part of the cart handle and, the top of pressing down depression bar intermediate position department articulates there is the actuating lever, and the welding of the horizontal pole that passes through of actuating lever position department has the outer fixed disk, the inboard rotation of outer fixed disk is connected with interior rolling disc, the welding of one side of interior rolling disc has the crank, and the welding of the internal rotation dish opposite side that the crank corresponds position department has the axis of rotation, the other pot head of actuating lever is established in the axis of rotation, one of them the bottom transverse welding of connecting rod has the recipient, and the one end of recipient is linked together with the other end of stand pipe, the other end transverse rotation of recipient is connected with the threaded rod, and the one end of threaded rod extends to the internal weld of recipient has the piston piece, the other end welding of rotatory handle.
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 return spring is sleeved on the clamping strip inside the L-shaped extrusion container.
Preferably, the spread groove has been seted up to the inside of stopper, and the inside of spread groove all has horizontal welding to have spacing spring, the other end welding of spacing spring has the arc fixture block, all set up the arc draw-in groove with arc fixture block looks adaptation on the shallow handle inside wall of arc fixture block position department.
Preferably, the first single bearing rotates clockwise to be in a locked state, the counterclockwise rotation is in a free state, and the second single bearing and the first single bearing are arranged in opposite directions.
3. Advantageous effects
(1) When the cart body goes up a slope, the handle can be rotated manually, so that 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, 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, the clamping strip is meshed with teeth on the gear disc, an operator can continuously shake the inner rotating disc at the moment, the pressing rod is repeatedly lifted in the process of circular motion of the inner rotating disc, when the pressing rod is lifted upwards, the clamping strip is meshed with the gear disc, the connecting plate and the connecting rod move downwards along the driving shaft in a circular motion manner, the L-shaped extrusion cylinder and the clamping strip are synchronously driven to rotate clockwise, the gear disc is sleeved on the driving shaft through the first single bearing, and the outer ring of the first single bearing is in a locking state when rotating clockwise, namely, the gear disc is quite fixedly arranged on the driving shaft, so that the driving shaft rotates clockwise to drive the travelling wheel to move forward, when the pressing rod moves downwards, the connecting plate and the connecting rod move upwards along the driving shaft in a circular motion, the L-shaped extrusion cylinder and the clamping strip synchronously drive the gear disc to rotate anticlockwise, because the outer ring of the first single bearing rotates anticlockwise, the gear disc is in a free state, namely, the gear disc is quite mounted on the driving shaft through a common bearing, but at the moment, the driving shaft sleeves the hinged plate on the driving shaft through the second single bearing, and simultaneously, the second single bearing is mounted in the opposite direction of the first bearing, the second single bearing rotates clockwise, the second single bearing rotates anticlockwise, the second single bearing is in a free state, the anticlockwise rotation is in a locking state, the driving shaft is prevented from rotating anticlockwise, the inner rotating disc is continuously shaken in such a way, and in the process that, simultaneously all set up in the drive shaft through the fulcrum of pressing down lever, connecting plate and connecting rod and the fulcrum of L type recipient for the arm of force according to the pressure lever is longer, and is more laborsaving to according to the depression bar lifting decline in-process promptly, and the carousel drives the swing of pressing down the depression bar small range about conveniently utilizing lever principle to last in-process uphill, and supplementary shallow body carries out the uphill walking, and it is more laborsaving to reduce labourer's intensity, convenient to use.
(2) When a user holds the cart handle with two hands to push the cart body downwards in the downhill process, the inner rotating disc can also rotate to drive the swing connecting plate and the connecting rod with small vertical amplitude of the pressing rod to drive the cart body to go downhill, and meanwhile, the inner rotating disc rotates to drive the pressing rod to swing upwards and downwards in the downhill process, so that the pressing rod slowly goes downhill to decelerate the cart body, the situation that the impact force is too fast in the downhill process of the cart body to cause injury to the user is avoided, and the safety index of the user is improved.
In conclusion, on one hand, the rotating disc is rotated to drive the pressing rod to swing up and down to enable the clamping strips and the gear disc to be meshed, the driving shaft and the traveling wheels are driven to travel forwards on an upslope, the rotating disc is conveniently used for driving the pressing rod to swing up and down to a small extent to swing the connecting plate and the connecting rod in the upslope process, the cart body is assisted to travel on the upslope, the intensity of workers is reduced, the cart body is more labor-saving on the upslope, on the other hand, the rotating disc is rotated to drive the pressing rod to swing up and down to enable the clamping strips and the gear disc to be meshed with each other in the downslope, the cart body is decelerated, the situation that the impact force of the cart body is too fast to hurt a user is avoided.
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 view of the internal structure of the limiting block of the present invention;
FIG. 5 is a schematic side view of the external fixed disk and the internal rotating disk of 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 first single-phase bearing; 13. an L-shaped extrusion cylinder; 14. a piston plate; 15. a return spring; 16. clamping the strip; 17. a connecting plate; 18. a hinged block; 19. a pressing lever; 20. an arc-shaped fixture block; 21. a limiting block; 22. a limiting spring; 23. connecting grooves; 24. an arc-shaped clamping groove; 25. a connecting rod; 26. a rotating shaft; 27. an outer fixed disk; 28. an inner rotating disk; 29. a crank; 30. a drive rod; 31. a second single-phase bearing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1-4, the construction cart convenient for ascending and descending with labor saving comprises a cart body 1, wherein two cart handles 2 are transversely welded at one end of the cart body 1, a support rod is welded at the inner side of the end part between the other ends of the two cart handles 2, 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 a second single bearing 31, 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 first single bearing 12 is sleeved at the middle position of a driving shaft 11 between two hinged plates 9, the first single bearing 12 rotates clockwise to be in a locking state, the second single bearing 31 and the first single bearing 12 are arranged in a reverse direction, a gear disc 10 is welded on the outer ring of the first single bearing 12, a connecting plate 17 is hinged at the bottom of a trolley body 1 outside the driving shaft 11, connecting rods 25 are welded at two ends of the inner side of the connecting plate 17, a hinged block 18 is welded at a position, right above the driving shaft 11, of the two connecting rods 25, the hinged block 18 is sleeved on the driving shaft 11 through a bearing, an L-shaped extrusion cylinder 13 is welded at the bottom of the connecting plate 17, a piston plate 14 is connected inside 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, and the outer end of the clamping strip 16 is in a toothed structure meshed with the outer teeth of the gear disc, one end of a clamping strip 16 penetrates through the end part of the other end of the L-shaped extrusion container 13, a return spring 15 is sleeved on the clamping strip 16 in the L-shaped extrusion container 13, the top part of one side of the L-shaped extrusion container 13 is connected with a guide pipe 7, two connecting rods 25 extend to the inner side of the end part of the trolley handle 2 and are welded with limiting blocks 21, connecting grooves 23 are formed in the limiting blocks 21, limiting springs 22 are transversely welded in the connecting grooves 23, arc-shaped clamping blocks 20 are welded at the other end of the limiting springs 22, arc-shaped clamping grooves 24 matched with the arc-shaped clamping blocks 20 are formed in the inner side wall of the trolley handle 2 at the positions of the arc-shaped clamping blocks 20, a pressing rod 19 is connected between the two limiting blocks 21, a driving rod 30 is hinged to the top part at the middle positions of the pressing rod 19, an outer fixing disk 27 is welded at, one side welding of interior rolling disc 28 has crank 29, and the welding of interior rolling disc 28 opposite side of crank 29 corresponding position department has axis of rotation 26, another pot head of actuating lever 30 is established on axis of rotation 26, the bottom transverse welding of one of them connecting rod 25 has recipient 6, and the one end of recipient 6 is linked together with the other end of stand pipe 7, the other end transverse rotation of recipient 6 is connected with threaded rod 4, the through-hole of mutually supporting with threaded rod 4 is seted up to the tip of recipient 6 that threaded rod 4 extends to recipient 6 inside, and be equipped with the internal thread of mutually supporting with threaded rod 4 external screw thread on the inside wall of through-hole, and the inside welding that the one end of threaded rod 4 extends to recipient 6 has piston block 5, the other end welding of rotatory handle 3 has rotatory handle 3, recipient 6, the inside of stand pipe 7 and L type recipient 13 all is deposited and is pressed hydraulic oil, it drives pole 19 luffing motion through rotatory interior rolling disc 28 in-process of going up a slope makes calorie strip 10, to drive shaft 11 and walking wheel 8 walking forward when going uphill, conveniently utilize interior rolling disc 28 to rotate and drive swing connecting plate 17 and connecting rod 25 according to depression bar 19 small range from top to bottom at the uphill in-process, supplementary shallow body 1 goes on the uphill walking, reduce labourer's intensity, make shallow body 1 more laborsaving when going uphill, the process of going downhill is through rotatory interior rolling disc 28 drive press the depression bar 19 luffing motion and make the relation of intermeshing between card strip 16 and toothed disc 10, slow down shallow body 1, prevent that the impulsive force of shallow body 1 from causing the injury to the user too fast, user's safety index has been improved.
The concrete action principle of the building cart convenient for ascending and descending is as follows:
firstly, when the cart body 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 continuously shake the inner rotating disc 28, the pressing rod 19 is repeatedly lifted in the process of circular motion of the inner rotating disc 28, when the pressing rod 19 is lifted upwards, the clamping strip 16 is meshed with the gear disc 10, so that the connecting plate 17 and the connecting rod move downwards along the circular motion of the driving shaft 11, the L-shaped extrusion cylinder 13 and the clamping strip 16 synchronously drive the gear disc 10 to rotate clockwise, and the gear disc 10 is sleeved on the driving shaft 11 through the first single bearing 12, and the outer ring of the first single bearing 12 is in a locking state when rotating clockwise, that is, the gear disc 10 is rather fixedly mounted on the driving shaft 11, so that the driving shaft 11 rotates clockwise to drive the traveling wheel 8 to advance, when the pressing rod 19 moves downwards, the connecting plate 17 and the connecting rod 25 move upwards along the driving shaft 11 in a circular motion, and synchronously the L-shaped extrusion cylinder 13 and the clamping strip 16 drive the gear disc 10 to rotate counterclockwise, because the outer ring of the first single bearing 12 rotates counterclockwise, that is, the gear disc 10 is rather mounted on the driving shaft 11 through a common bearing, but at this time, the driving shaft 11 sleeves the hinged plate on the driving shaft 11 through the second single bearing 31, and simultaneously the second single bearing 31 is mounted in a reverse direction to the first single bearing 12, so that the second single bearing 31 rotates clockwise, that the counterclockwise rotation is in a locking state, the driving shaft 11 is prevented from anticlockwise rotating, the inner rotating disc 28 is continuously shaken, the inner rotating disc 28 is repeatedly lifted to drive the travelling wheels 8 to continuously advance to an uphill slope in the process of circular motion of the inner rotating disc 28, meanwhile, the fulcrum of the pressing rod 19, the connecting plate 17, the connecting rod 25 and the fulcrum of the L-shaped extrusion cylinder are all arranged on the driving shaft 11, so that the force arm of the pressing rod 19 is longer, namely, the pressing rod 19 is more labor-saving in the lifting and descending processes, the inner rotating disc is continuously shaken to drive the pressing rod 19 to swing up and down in a small amplitude by utilizing the lever principle in the uphill slope process, the cart body 1 is assisted to walk uphill slope, the intensity of workers is reduced, the use is more labor-saving, and the inner rotating disc 28 can be used for driving the swinging connecting plate 17 and the connecting rod 25 in the small amplitude of the pressing rod 19 to rotate up and down by holding the, according to the steps, the cart body 1 is driven to descend, the inner rotating disc 28 rotates to drive the up-and-down swinging pressing rod 19 to slowly descend to decelerate the cart body 1, the impact force generated when the cart body 1 descends is too fast to cause injury to a user, the safety index of the user is improved, when the cart runs on a normal road section, the handle 3 can be rotated in the reverse direction, the clamping strip 16 is separated from the gear disc 10 under the action of the return spring 15, and the cart body 1 can be normally pushed to use.
From the above, in the present invention, on one hand, the inner rotating disc 28 is rotated to drive the pressing rod 19 to swing up and down to make the engagement relationship between the clamping strips 16 and the gear disc 10, so as to drive the driving shaft 11 and the traveling wheels 8 to travel forward on an uphill, so that the inner rotating disc 28 is conveniently rotated to drive the pressing rod 19 to swing up and down to a small extent to swing the connecting plate 17 and the connecting rod 25, thereby assisting the cart body 1 to travel on an uphill, and reducing the intensity of workers, so that the cart body 1 is more labor-saving on an uphill, on the other hand, the inner rotating disc 28 is rotated to drive the pressing rod 19 to swing up and down to make the engagement relationship between the clamping strips 16 and the gear disc 10, so as to decelerate the cart body 1, thereby preventing the too fast impulsive force of the cart body 1 from causing damage to the users, and improving the safety.
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 (7)
1. The building cart convenient for ascending and descending is labor-saving and is characterized by comprising a cart body (1), wherein two cart handles (2) are transversely welded at one end of the cart body (1), a supporting rod is welded at the inner side of the end part between the other ends of the two cart handles (2), 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 a second single bearing (31), and two ends of the driving shaft (11) extend to the outer sides of the hinged plates (9) and are rotatably connected with walking wheels (8);
two drive shaft (11) intermediate position department cover between articulated slab (9) is equipped with first individual bearing (12), and the welding has gear plate (10) on the outer lane of first individual bearing (12), the shallow body (1) bottom in the drive shaft (11) outside articulates there is connecting plate (17), and connecting plate (17) inboard both ends all weld connecting rod (25), two connecting rod (25) are located drive shaft (11) position department welding directly over and are articulated piece (18), and articulated piece (18) are established on drive shaft (11) through the bearing housing, the bottom welding of connecting plate (17) has L type recipient (13), and the inside sliding connection of the other end of L type recipient (13) has piston plate (14), the welding of intermediate position department in the piston plate (14) outside has card strip (16), and the tip of the other end of L type recipient (13) is passed to the one end of card strip (16), the top of L type recipient (13) one side is connected with stand pipe (7), two connecting rod (25) extend to the inboard of shallow handle (2) tip and weld stopper (21), and be connected with between two stoppers (21) and press down pole (19), it has actuating lever (30) to press down the top of pole (19) intermediate position department articulated, and the welding of actuating lever (30) position department has outer fixed disk (27) through the horizontal pole, the inboard rotation of outer fixed disk (27) is connected with interior rolling disc (28), the welding of one side of interior rolling disc (28) has crank (29), and the welding of interior rolling disc (28) opposite side that crank (29) correspond position department has axis of rotation (26), the other end cover of actuating lever (30) is established on axis of rotation (26), one of them the bottom transverse welding of connecting rod (25) has recipient (6), and the one end of recipient (6) is linked together with the other end of stand pipe (7), the other end transverse rotation of recipient (6) is connected with threaded rod (4), and the one end of threaded rod (4) extends to the inside welding of recipient (6) has piston block (5), the other end welding of rotatory handle (3) has rotatory handle (3).
2. The construction trolley convenient for ascending and descending with labor saving as claimed in claim 1, characterized in that the outer end of the clamping strip (16) is in a tooth structure meshed with the outer teeth of the gear disc (10).
3. The building trolley convenient for ascending and descending with labor saving as claimed in claim 1, wherein the end of the extrusion container (6) where the threaded rod (4) extends to the inside of the extrusion 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 internal thread which is matched with the external thread of the threaded rod (4).
4. The construction trolley convenient for ascending and descending with labor saving as claimed in claim 1, characterized in that the extrusion cylinder (6), the guide pipe (7) and the L-shaped extrusion cylinder (13) are all internally stored with hydraulic oil.
5. The construction trolley convenient for ascending and descending with labor saving as claimed in claim 1, characterized in that a return spring (15) is sleeved on a clamping strip (16) inside the L-shaped extrusion container (13).
6. The building trolley convenient for ascending and descending with labor conservation as claimed in claim 1, wherein the inside of the limiting block (21) is provided with a connecting groove (23), the inside of the connecting groove (23) is transversely welded with a limiting spring (22), the other end of the limiting spring (22) is welded with an arc-shaped fixture block (20), and the inner side wall of the trolley handle (2) at the position of the arc-shaped fixture block (20) is provided with an arc-shaped clamping groove (24) matched with the arc-shaped fixture block (20).
7. A construction trolley facilitating effort-saving going up and down a slope according to claim 1, characterised in that the first single bearing (12) is turned clockwise to a locked state and counter-clockwise to a free state, and the second single bearing (31) is arranged opposite to the first single bearing (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010894918.0A CN112046558A (en) | 2020-08-31 | 2020-08-31 | Building shallow convenient to go up laborsaving of downhill path |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010894918.0A CN112046558A (en) | 2020-08-31 | 2020-08-31 | Building shallow convenient to go up laborsaving of downhill path |
Publications (1)
Publication Number | Publication Date |
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CN112046558A true CN112046558A (en) | 2020-12-08 |
Family
ID=73608046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202010894918.0A Withdrawn CN112046558A (en) | 2020-08-31 | 2020-08-31 | Building shallow convenient to go up laborsaving of downhill path |
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Country | Link |
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CN (1) | CN112046558A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB142272A (en) * | 1919-04-14 | 1920-05-06 | Charles Hosking | Improvements relating to two-wheeled draft vehicles |
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 |
CN201381957Y (en) * | 2008-12-25 | 2010-01-13 | 李志洋 | Road energy conversion device |
-
2020
- 2020-08-31 CN CN202010894918.0A patent/CN112046558A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB142272A (en) * | 1919-04-14 | 1920-05-06 | Charles Hosking | Improvements relating to two-wheeled draft vehicles |
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 |
CN201381957Y (en) * | 2008-12-25 | 2010-01-13 | 李志洋 | Road energy conversion device |
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