CN112723253B - Negative pressure forklift - Google Patents
Negative pressure forklift Download PDFInfo
- Publication number
- CN112723253B CN112723253B CN202011595635.2A CN202011595635A CN112723253B CN 112723253 B CN112723253 B CN 112723253B CN 202011595635 A CN202011595635 A CN 202011595635A CN 112723253 B CN112723253 B CN 112723253B
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- negative pressure
- wheel
- sealing
- counterweight
- forklift
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- 238000000034 method Methods 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 85
- 241000252254 Catostomidae Species 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B15/00—Wheels or wheel attachments designed for increasing traction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
Abstract
The invention discloses a negative pressure forklift, which comprises a forklift body, wherein a wheel hiding groove is formed in the lower end face of the forklift body, a counterweight wheel is rotationally connected to the wheel hiding groove, a wheel shaft is rotationally connected to the center of the counterweight wheel, the wheel shaft is fixedly arranged on the inner wall of the wheel hiding groove, a steering cavity is formed in the wheel shaft, a negative pressure channel is formed in the lower end of the steering cavity, the lower end of the negative pressure channel penetrates through the lower end of the wheel shaft and is communicated with the outside, a plurality of negative pressure pipes are formed in equidistant annular rows in the counterweight wheel, suction cups are fixedly arranged at one ends of the negative pressure pipes, which are away from the wheel shaft, of the suction cups, and the edges of the counterweight wheel are protruded at one ends of the suction cups, which are away from the negative pressure pipes. According to the invention, the gravity center of the forklift body is effectively prevented from forward when the forklift carries cargoes with extreme weight, and potential safety hazards such as slipping of cargoes, forward tilting of the forklift body and the like are avoided in the running process of the forklift.
Description
Technical Field
The invention relates to the technical field, in particular to a negative pressure forklift.
Background
Forklifts are widely used in factories or logistics companies frequently, fork feet are arranged at the front part of the fork structure, a driving cab is arranged at the middle part of the fork structure, and a balance block is arranged at the tail part of the fork structure; in addition, when the traditional forklift is used for carrying cargoes with extreme weight, the gravity center of the forklift body faces forward, and potential safety hazards such as falling of cargoes and forward tilting of the forklift body easily occur in the running process.
In order to solve the above problems, the present invention provides a negative pressure forklift.
Disclosure of Invention
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a negative pressure forklift comprises a forklift body, wherein the lower end surface of the forklift body is provided with a wheel hiding groove which is rotationally connected with a counterweight wheel, the center of the counterweight wheel is rotationally connected with a wheel shaft which is fixedly arranged on the inner wall of the wheel hiding groove, a steering cavity is arranged in the wheel axle, a negative pressure channel is arranged at the lower end of the steering cavity, the lower end of the negative pressure channel penetrates through the lower end of the wheel axle and is communicated with the outside, a plurality of negative pressure pipes are arranged in the equidistant annular row in the counterweight wheel, a sucker is fixedly arranged at one end of each negative pressure pipe, which is away from the wheel axle, one end of the sucker, which is away from the negative pressure pipe, protrudes out of the edge of the counterweight wheel, a first driving wheel is fixedly arranged at the center of the front side wall of the counterweight wheel, a second driving wheel is rotationally connected on the side wall of the front side of the car body, the second driving wheel is in driving connection with the first driving wheel through a driving belt, an annular chute is arranged on the front side wall of the second driving wheel, a sealing plate is fixedly arranged on the front side wall of the vehicle body, the inner slide of the sealing plate is connected with a sealing slide plug, a push rod is fixedly arranged at the center of the left side wall of the sealing slide plug, one end of the push rod, which is away from the sealing sliding plug, penetrates through the side wall of the sealing plate and is rotationally connected with a rotating rod, the push rod is connected in the side wall of the sealing plate in a sliding way, one end of the rotating rod, which is away from the push rod, is connected in the annular chute in a sliding way, a first single valve is arranged on the side wall of the sealing sliding plug, a communicating pipe and an air outlet pipe are respectively arranged on the bottom end surface of the sealing plate, the other end of the communicating pipe penetrates through the first driving wheel and is communicated with the steering cavity, and one end of the sealing plate deviating from the air outlet pipe penetrates through the side wall of the wheel storage groove and is opposite to the counterweight wheel.
Preferably, a second single valve is arranged at the communication position between the upper end of the communicating pipe and the inside of the sealing plate, and the second single valve is fixedly arranged in the inner wall of the upper end of the communicating pipe.
Preferably, a filter screen is arranged at the joint of each sucker and the negative pressure pipe, and the filter screen is fixedly arranged in the inner wall of the negative pressure pipe.
Preferably, one end of each negative pressure pipe opposite to the wheel shaft penetrates through the inner ring side wall of the counterweight wheel and is matched with the negative pressure channel.
Preferably, a sealing ring is arranged between the lower end of the negative pressure channel and the inner ring of the counterweight wheel, the sealing ring is fixedly arranged at the lower end of the wheel shaft, and the sealing ring is in sliding connection with the side wall of the inner ring of the counterweight wheel.
Compared with the prior art, the invention has the beneficial effects that:
when the counterweight wheel runs, the counterweight wheel can drive the first driving wheel to rotate, the first driving wheel drives the second driving wheel to rotate through the driving belt, the annular chute can drive the push rod to reciprocate left and right through the rotating rod when the second driving wheel rotates, the push rod drives the sealing sliding plug to reciprocate left and right in the sealing plate, when the sealing sliding plug slides left and right, air between the left side wall of the sealing sliding plug and the inner wall of the sealing plate can enter a space between the right side of the sealing sliding plug and the inner wall of the sealing plate through the first single valve, when the sealing sliding plug moves right, negative pressure is formed between the left side wall of the sealing sliding plug and the inner wall of the sealing plate, and then air in a negative pressure pipe which is right opposite to the negative pressure channel enters the sealing plate through the steering cavity, the negative pressure channel, the communicating pipe and the second single valve, so that a strong adsorption force is generated between the sucking disc and the ground, the gravity center of a forklift is effectively prevented from forward when the forklift carries goods with extreme weight, and potential safety hazards such as slipping of the forklift are avoided in the running process of the forklift.
Drawings
Fig. 1 is a schematic diagram of a front structure of a negative pressure forklift according to the present invention;
fig. 2 is a front cross-sectional view of a counterweight wheel in a negative pressure forklift according to the invention;
fig. 3 is an enlarged schematic view of a portion of a rear half of a vehicle body in a negative pressure forklift according to the present invention;
in the figure: the sealing sliding plug 1, the first single valve 2, the push rod 3, the rotary rod 4, the steering cavity 5, the second single valve 6, the 7 communicating pipe 8, the annular chute 9, the second driving wheel 10, the driving belt 11, the sealing plate 12, the air outlet pipe 13, the filter screen 14, the sucking disc 15, the negative pressure pipe 16, the balance weight wheel 17 and the negative pressure channel 18.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to figures 1-3, a negative pressure forklift comprises a forklift body 11, wherein a wheel hiding groove is formed in the lower end face of the forklift body 11, a counterweight wheel 17 is rotatably connected in the wheel hiding groove, a wheel shaft is rotatably connected to the center of the counterweight wheel 17, the wheel shaft is fixedly arranged on the inner wall of the wheel hiding groove, a steering cavity 5 is formed in the wheel shaft, a negative pressure channel 18 is formed in the lower end of the steering cavity 5, the lower end of the negative pressure channel 18 penetrates through the lower end of the wheel shaft and is communicated with the outside, a plurality of negative pressure pipes 16 are formed in equidistant annular rows in the counterweight wheel 17, a sucker 15 is fixedly arranged at one end of each negative pressure pipe 16, one end of each sucker 15, which is away from the negative pressure pipe 16, protrudes out of the edge of the counterweight wheel 17, a first driving wheel is fixedly arranged at the center of the front side wall of the counterweight wheel 17, a second driving wheel 9 is rotatably connected to the front side wall of the forklift body 11, the second driving wheel 9 is in driving connection with the first driving wheel through a driving belt 10, an annular chute 8 is formed on the front side wall of the second driving wheel 9, a sealing plate 12 is fixedly arranged on the surface side wall of a vehicle body 11, a sealing sliding plug 1 is fixedly connected in the inner sliding of the sealing plate 12, a push rod 3 is fixedly arranged in the center of the left side wall of the sealing sliding plug 1, one end of the push rod 3, which is far away from the sealing sliding plug 1, penetrates through the side wall of the sealing plate 12 and is rotationally connected with a rotating rod 4, the push rod 3 is in sliding connection with the side wall of the sealing plate 12, one end of the rotating rod 4, which is far away from the push rod 3, is in sliding connection with the annular chute 8, a single valve 2 is arranged on the side wall of the sealing sliding plug 1, a communicating pipe 7 and an air outlet pipe 13 are respectively arranged on the bottom end surface of the sealing plate 12, the other end of the communicating pipe 7 penetrates through the first driving wheel and is mutually communicated with the steering cavity 5, one end of the sealing plate 12, which is away from the air outlet pipe 13, penetrates through the side wall of the wheel hiding groove and is opposite to the counterweight wheel 17;
wherein, the communication place between the upper end of the communicating pipe 7 and the inside of the sealing plate 12 is provided with a second single valve 6, and the second single valve 6 is fixedly arranged in the inner wall of the upper end of the communicating pipe 7; a filter screen 14 is arranged at the joint of each sucker 15 and the negative pressure pipe 16, the filter screen 14 is fixedly arranged on the inner wall of the negative pressure pipe 16, and the filter screen 14 prevents dust from entering the negative pressure channel 18; one end of each negative pressure pipe 16 opposite to the wheel shaft penetrates through the inner ring side wall of the counterweight wheel 17 and is matched with the negative pressure channel 18; a sealing ring is arranged between the lower end of the negative pressure channel 18 and the inner ring of the counterweight wheel 17, the sealing ring is fixedly arranged at the lower end of the wheel shaft, the sealing ring is in sliding connection with the inner ring side wall of the counterweight wheel 17, and the sealing ring avoids the phenomenon of air leakage when negative pressure is formed between the negative pressure channel 18 and the negative pressure pipe 16;
in this embodiment, when the counterweight wheel 17 runs, the counterweight wheel 17 drives the first driving wheel to rotate, the first driving wheel drives the second driving wheel 9 to rotate through the driving belt 10, the annular chute 8 drives the push rod 3 to reciprocate left and right through the rotating rod 4 when the second driving wheel 9 rotates, the push rod 3 drives the sealing slide plug 1 to reciprocate left and right in the sealing plate 12, and when the sealing slide plug 1 slides left and right, air between the left side wall of the sealing slide plug 1 and the inner wall of the sealing plate 12 enters a space between the right side of the sealing slide plug 1 and the inner wall of the sealing plate 12 through the first single valve 2;
further, when the sealing slide plug 1 moves rightwards, negative pressure is formed between the left side wall of the sealing slide plug 1 and the inner wall of the sealing plate 12, so that air in the negative pressure pipe 16 which is just opposite to the negative pressure channel 18 enters the sealing plate 12 through the steering cavity 5, the negative pressure channel 18, the communicating pipe 7 and the second single valve 6, so that a strong adsorption force is generated between the sucker 15 and the ground, the gravity center of a forklift body is effectively prevented from being forward when the forklift carries goods with extreme weight, and potential safety hazards such as goods slipping and forward tilting of the forklift body are avoided in the running process of the forklift;
further, in the process of rotating the counterweight wheel 17, the suckers 15 on the counterweight wheel 17 are alternately contacted with the ground, and when the suckers 15 are contacted with the ground each time, the negative pressure generated in the negative pressure pipe 16 makes the suckers 15 tightly attracted with the ground, so that the problem that the balance weight in the forklift is limited is solved; in actual production, the circumference of the first driving wheel is far greater than that of the second driving wheel 9, so that the rotation speed of the second driving wheel 9 is increased, the left-right movement frequency of the sealing sliding plug 1 is increased, the negative pressure time difference formed by two adjacent times in the communicating pipe 7 is very short, and the negative pressure state in the negative pressure channel 18 is always kept when each negative pressure pipe 16 is opposite to the negative pressure channel 18;
finally, when the sealing slide plug 1 moves rightwards, air between the right side of the sealing slide plug 1 and the inner wall of the sealing plate 12 can be sprayed to the suction disc 15 on the surface of the counterweight wheel 17 through the air outlet pipe 13, dust on the suction disc 15 is cleaned, and the tightness of the contact between the suction disc 15 and the ground is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. The negative pressure forklift comprises a forklift body (11), and is characterized in that a wheel hiding groove is formed in the lower end face of the forklift body (11), a counterweight wheel (17) is rotationally connected to the center of the counterweight wheel (17), a wheel shaft is fixedly arranged on the inner wall of the wheel hiding groove, a steering cavity (5) is formed in the wheel shaft, a negative pressure channel (18) is formed in the lower end of the steering cavity (5), the lower end of the negative pressure channel (18) penetrates through the lower end of the wheel shaft and is mutually communicated with the outside, a plurality of negative pressure pipes (16) are formed in equidistant annular columns in the counterweight wheel (17), suction cups (15) are fixedly arranged at one ends of the negative pressure pipes (16) deviating from the wheel shaft, one ends of the suction cups (15) are protruded out of the edges of the counterweight wheel (17), a first driving wheel (9) is fixedly arranged at the center of the front side wall of the counterweight wheel (17), a second driving wheel (9) is rotationally connected to the front side wall of the forklift body (11), a sealing plate (12) is fixedly arranged between the first driving wheel (9) and the second driving wheel (12), the sealing sliding plug is characterized in that a push rod (3) is fixedly arranged in the center of the left side wall of the sealing sliding plug (1), one end of the push rod (3) deviating from the sealing sliding plug (1) penetrates through the side wall of a sealing plate (12) and is rotationally connected with a rotating rod (4), the push rod (3) is slidably connected in the side wall of the sealing plate (12), one end of the rotating rod (4) deviating from the push rod (3) is slidably connected in an annular chute (8), a single valve (2) is arranged on the side wall of the sealing sliding plug (1), a communicating pipe (7) and an air outlet pipe (13) are respectively arranged on the bottom end surface of the sealing plate (12), the other end of the communicating pipe (7) penetrates through the first driving wheel and is mutually communicated with a steering cavity (5), and one end of the sealing plate (12) deviating from the air outlet pipe (13) penetrates through the side wall of a hidden wheel groove and is positively opposite to a counterweight wheel (17).
A second single valve (6) is arranged at the communication position between the upper end of the communicating pipe (7) and the inside of the sealing plate (12), and the second single valve (6) is fixedly arranged in the inner wall of the upper end of the communicating pipe (7);
a filter screen (14) is arranged at the joint of each sucker (15) and the negative pressure pipe (16), and the filter screen (14) is fixedly arranged in the inner wall of the negative pressure pipe (16);
one end of each negative pressure pipe (16) opposite to the wheel shaft penetrates through the inner ring side wall of the counterweight wheel (17) and is matched with the negative pressure channel (18);
a sealing ring is arranged between the lower end of the negative pressure channel (18) and the inner ring of the counterweight wheel (17), the sealing ring is fixedly arranged at the lower end of the wheel shaft, and the sealing ring is in sliding connection with the side wall of the inner ring of the counterweight wheel (17);
when the counterweight wheel (17) runs, the counterweight wheel (17) can drive a first driving wheel to rotate, the first driving wheel drives a second driving wheel (9) to rotate through a driving belt (10), when the second driving wheel (9) rotates, the annular sliding groove (8) can drive the push rod (3) to reciprocate left and right through the rotating rod (4), the push rod (3) drives the sealing sliding plug (1) to reciprocate left and right in the sealing plate (12), and when the sealing sliding plug (1) slides left and right, air between the left side wall of the sealing sliding plug (1) and the inner wall of the sealing plate (12) can enter a space between the right side of the sealing sliding plug (1) and the inner wall of the sealing plate (12) through a first single valve (2);
when the sealing sliding plug (1) moves rightwards, negative pressure is formed between the left side wall of the sealing sliding plug (1) and the inner wall of the sealing plate (12), so that air in a negative pressure pipe (16) which is positively opposite to a negative pressure channel (18) enters the sealing plate (12) through a steering cavity (5), the negative pressure channel (18), a communicating pipe (7) and a second single valve (6), so that a sucking disc (15) and the ground generate strong adsorption force, the gravity center of a forklift body is forward when the forklift carries cargoes with extreme weight, and potential safety hazards such as falling of cargoes, forward tilting of the forklift body and the like are avoided in the running process of the forklift;
in the process of rotating the counterweight wheel (17), the suckers (15) on the counterweight wheel (17) are alternately contacted with the ground, and when the suckers (15) are contacted with the ground each time, the negative pressure generated in the negative pressure pipe (16) enables the suckers (15) to be tightly attracted with the ground, so that the problem that the balance weight in the forklift is limited is solved; in actual production, zhou Changyuan of the first driving wheel is larger than the circumference of the second driving wheel (9), so that the rotation speed of the second driving wheel (9) is increased, the left-right movement frequency of the sealing sliding plug (1) is increased, the negative pressure time difference formed adjacent to the communicating pipe (7) twice is very short, and the negative pressure in the negative pressure channel (18) is always kept when each negative pressure pipe (16) is in positive opposition to the negative pressure channel (18);
when the sealing sliding plug (1) moves rightwards, air between the right side of the sealing sliding plug (1) and the inner wall of the sealing plate (12) can be sprayed to the suction disc (15) on the surface of the counterweight wheel (17) through the air outlet pipe (13), dust on the suction disc (15) is cleaned, and the tightness of the contact between the suction disc (15) and the ground is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011595635.2A CN112723253B (en) | 2020-12-29 | 2020-12-29 | Negative pressure forklift |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011595635.2A CN112723253B (en) | 2020-12-29 | 2020-12-29 | Negative pressure forklift |
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| Publication Number | Publication Date |
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| CN112723253A CN112723253A (en) | 2021-04-30 |
| CN112723253B true CN112723253B (en) | 2023-05-09 |
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| CN202011595635.2A Active CN112723253B (en) | 2020-12-29 | 2020-12-29 | Negative pressure forklift |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264706A (en) * | 2017-08-04 | 2017-10-20 | 夏琼 | Chainless type water moped |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000044012A (en) * | 1998-07-28 | 2000-02-15 | Toyota Autom Loom Works Ltd | Stacker crain and automatic warehouse |
| CN107311078B (en) * | 2015-10-16 | 2019-05-10 | 江苏四达重工有限公司 | Weighting distribution wheel |
| CN105460844B (en) * | 2016-01-06 | 2018-12-21 | 罗诚 | A kind of piler air-breathing takes object equipment |
| CN108076911A (en) * | 2017-12-06 | 2018-05-29 | 郑州莉迪亚医药科技有限公司 | A kind of quick earth culture cultivation device of small-sized colza manpower of crank block suction type |
| CN108098816B (en) * | 2017-12-20 | 2020-04-21 | 重庆文理学院 | Stone clamping device for excavating robot |
| CN208617284U (en) * | 2018-06-11 | 2019-03-19 | 上海汇盛塑胶制品有限公司 | A kind of hinge device with pedal convenient for cargo restocking |
| CN108817694B (en) * | 2018-07-09 | 2020-04-21 | 温州大学 | Laser welding robot |
| CN210969476U (en) * | 2019-08-21 | 2020-07-10 | 大同新成新材料股份有限公司 | Semiconductor material cutting device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264706A (en) * | 2017-08-04 | 2017-10-20 | 夏琼 | Chainless type water moped |
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Effective date of registration: 20230412 Address after: 250000 Shengjing Street Industrial Park, Zhangqiu District, Jinan City, Shandong Province (Business location: North Head of Panjiabu Village, Caofan Street, Zhangqiu District, Jinan City, Shandong Province) Applicant after: Jinan Fangzheng Logistics Co.,Ltd. Address before: No.11 Wenhua Road, Laiyang City, Yantai City, Shandong Province Applicant before: Yuan Zhongnian |
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Denomination of invention: A negative pressure forklift Effective date of registration: 20231215 Granted publication date: 20230509 Pledgee: Jinan Zhangqiu District Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Jinan Fangzheng Logistics Co.,Ltd. Registration number: Y2023980072034 |