CN115366973A - Electric power-assisted hand trailer capable of preventing hands from slipping off - Google Patents
Electric power-assisted hand trailer capable of preventing hands from slipping off Download PDFInfo
- Publication number
- CN115366973A CN115366973A CN202210805374.5A CN202210805374A CN115366973A CN 115366973 A CN115366973 A CN 115366973A CN 202210805374 A CN202210805374 A CN 202210805374A CN 115366973 A CN115366973 A CN 115366973A
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- Prior art keywords
- contact
- rod
- bearing
- return spring
- axle
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- 230000006698 induction Effects 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 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
Images
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
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0033—Electric motors
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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
- B62B5/0069—Control
-
- 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
- B62B5/0404—Braking mechanisms; Locking devices against movement automatic
Abstract
The invention discloses an electric power-assisted hand trailer capable of preventing hands from slipping off, which comprises a hand trailer body, an induction module, a driving module, a braking module and a control module. The hand trailer is controlled to be in a state of being held by the hand trailer, and the power switch is controlled to be in a state of being turned on. The invention can realize the function of automatic braking when the hand is accidentally released.
Description
Technical Field
The invention relates to the field of transport equipment, in particular to an electric power-assisted hand trailer capable of preventing hands from slipping off.
Background
With the development of economy, cargo transportation work is increasingly busy. In narrow areas where partial freight vehicles such as roadways and corridors cannot enter, the transportation of freight requires manual handling. However, part of the goods are heavy and hard to transport manually; and part of goods are small and scattered, and the manual carrying efficiency is not high. The two-wheeled hand trailer is a common auxiliary transportation device due to simple operation and small occupied area.
The common two-wheeled hand trailer is driven by manpower, is very labourious in the transportation of heavier goods, and the hand trailer with the electric power-assisted function is a product urgently needed by the market. The hand cart must be provided with a handle by which the user can control the balance and orientation of the apparatus. When the hand-trailer is driven on inclined ground such as slopes and corridors, if the user falls down, slips hands, takes off force and other accidents happen, the handle is separated from the user, and the hand-trailer is likely to slip back along the inclined surface, so that safety accidents are caused. Therefore, for the electric hand trailer, a safety mechanism must be provided to ensure the automatic braking of the equipment when the handle is disengaged.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electric power-assisted hand trailer capable of preventing a hand from slipping off aiming at the defects in the background technology.
The invention adopts the following technical scheme for solving the technical problems:
an electric power-assisted hand trailer capable of preventing hands from slipping comprises a hand trailer body, an induction module, a driving module, a braking module and a control module;
the hand trailer body comprises a handle, a frame, a bearing plate, a baffle plate, a first bearing bracket, a second bearing bracket, an axle, a first bearing wheel and a second bearing wheel;
the frame is a plane frame body; the bearing plate is vertically and fixedly connected with the lower end of the front side of the frame; the baffle is fixed on the front surface of the frame and is used for matching with the bearing plate to load goods;
the first bearing support and the second bearing support are arranged at the lower end of the back of the rack; the axle is parallel to the bearing plate, one end of the axle is coaxially and fixedly connected with the first bearing wheel, the other end of the axle sequentially penetrates through the first bearing support and the second bearing support and then is coaxially and fixedly connected with the second bearing wheel, and the axle is respectively connected with the first bearing support and the second bearing support through bearings and can freely rotate relative to the frame;
the handle is in an inverted U shape and comprises a first vertical rod, a second vertical rod and a transverse rod, and two ends of the transverse rod are respectively and vertically fixedly connected with one end of the first vertical rod and one end of the second vertical rod; the other ends of the first vertical rod and the second vertical rod are fixedly connected with the upper end of the rack, so that the cross rod is parallel to the bearing plate, and the plane of the handle is vertical to the bearing plate;
the induction module comprises a sliding rod, a first reset spring, a second reset spring, a power switch, a first contact and a second contact; the inner sides of the first vertical rod and the second vertical rod are respectively provided with a first sliding rail and a second sliding rail along the length direction of the first vertical rod and the second vertical rod; two ends of the sliding rod are respectively matched with the first sliding rail and the second sliding rail, so that the sliding rod is parallel to the cross rod and can freely slide along the first sliding rail and the second sliding rail; the first contact and the second contact are respectively and correspondingly arranged on the middle points of the cross rod and the sliding rod; the first return spring and the second return spring are symmetrically arranged on two sides of the first contact, and one end of each of the first return spring and the second return spring is fixedly connected with the cross rod and the other end of each of the first return spring and the second return spring is fixedly connected with the slide rod; when the handle is held, the sliding rod overcomes the elastic forces of the first return spring and the second return spring to slide towards the cross rod under the action of the holding force, and the first contact and the second contact are contacted; when the handle is loosened, the sliding rod slides towards the direction far away from the cross rod under the action of the elastic force of the first return spring and the second return spring, and the first contact and the second contact are separated; the power switch is arranged on the cross rod;
the driving module comprises a driving motor, a driving rotating wheel, a driven rotating wheel and a synchronous chain; the driven rotating wheel is fixed on the axle and is coaxial with the axle; the driving motor is fixed on the back of the frame, and an output shaft of the driving motor is coaxially and fixedly connected with the driving rotating wheel; the driving rotating wheel and the driven rotating wheel are in transmission connection through the synchronous chain;
the brake module adopts a stay-supported electronic hand brake, a brake pad of the stay-supported electronic hand brake is arranged on the axle and coaxially and fixedly connected with the axle, and a brake motor of the stay-supported electronic hand brake is fixed on the back of the rack;
control module respectively with switch, first contact, second contact, driving motor, stay-supported electron manual brake electrical apparatus link to each other for control stay-supported electron manual brake when switch opens and first contact, the contact of second and loosen and control driving motor work, control stay-supported electron manual brake when switch opens and first contact, the separation of second contact and control driving motor stop work.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
the invention has simple structure and convenient operation, and can be used for auxiliary cargo transportation in narrow areas; whether the unexpected condition of taking off the hand appears when response module can effectively check out test set goes along the inclined plane, triggers the stopper based on the micro-gap switch state and carries out, and the response is rapid, can effectively deal with the safety problem that the organism suddenly moved back along slope or ladder when taking off the hand fast.
Drawings
FIG. 1 is a schematic view of the backside structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the structure of the present invention in which the frame, the bearing plate, the baffle, the first bearing bracket and the second bearing bracket are engaged;
fig. 4 is a schematic view of the structure of the handle and the sensing module in cooperation.
In the figure, 1-hand trailer body, 2-induction module, 3-driving module, 4-braking module, 5-handle, 6-frame, 7-baffle, 8-bearing plate, 9-first bearing wheel, 10-second bearing wheel, 11-second bearing support, 12-sliding rod, 13-first return spring, 14-second return spring, 15-first contact, 16-second contact and 17-power switch.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components and/or sections, these elements, components and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, and/or section from another. Thus, a first element, component, and/or section discussed below could be termed a second element, component, or section without departing from the teachings of the present invention.
As shown in fig. 1, the invention discloses an electric power-assisted hand-trailer capable of preventing a falling hand from slipping, which comprises a hand-trailer body, an induction module, a driving module, a braking module and a control module;
as shown in fig. 2, the hand trailer body comprises a handle, a frame, a bearing plate, a baffle, a first bearing bracket, a second bearing bracket, an axle, a first bearing wheel and a second bearing wheel;
the frame is a plane frame body; the bearing plate is vertically and fixedly connected with the lower end of the front side of the frame; the baffle is fixed on the front surface of the frame and is used for matching with the bearing plate to load goods; the first bearing bracket and the second bearing bracket are arranged at the lower end of the back of the rack, as shown in fig. 3;
the axle is parallel to the bearing plate, one end of the axle is coaxially and fixedly connected with the first bearing wheel, the other end of the axle sequentially penetrates through the first bearing support and the second bearing support and then is coaxially and fixedly connected with the second bearing wheel, and the axle is respectively connected with the first bearing support and the second bearing support through bearings and can freely rotate relative to the frame;
as shown in fig. 2, the handle is in an inverted U shape and comprises a first vertical rod, a second vertical rod and a cross rod, wherein two ends of the cross rod are respectively and vertically fixedly connected with one end of the first vertical rod and one end of the second vertical rod; the other ends of the first vertical rod and the second vertical rod are fixedly connected with the upper end of the rack, so that the cross rod is parallel to the bearing plate, and the plane where the handle is located is perpendicular to the bearing plate;
as shown in fig. 4, the sensing module includes a sliding rod, a first return spring, a second return spring, a power switch, a first contact and a second contact; the inner sides of the first vertical rod and the second vertical rod are respectively provided with a first sliding rail and a second sliding rail along the length direction of the first vertical rod and the second vertical rod; two ends of the sliding rod are respectively matched with the first sliding rail and the second sliding rail, so that the sliding rod is parallel to the cross rod and can freely slide along the first sliding rail and the second sliding rail; the first contact and the second contact are respectively and correspondingly arranged on the middle points of the cross rod and the sliding rod; the first return spring and the second return spring are symmetrically arranged on two sides of the first contact, and one end of each of the first return spring and the second return spring is fixedly connected with the cross rod and the other end of each of the first return spring and the second return spring is fixedly connected with the slide rod; when the handle is held, the sliding rod overcomes the elastic forces of the first return spring and the second return spring to slide towards the cross rod under the action of the holding force, and the first contact and the second contact are contacted; when the handle is loosened, the sliding rod slides towards the direction far away from the cross rod under the action of the elastic force of the first return spring and the second return spring, and the first contact and the second contact are separated; the power switch is arranged on the cross rod;
as shown in fig. 1, the driving module includes a driving motor, a driving wheel, a driven wheel and a synchronous chain; the driven rotating wheel is fixed on the axle and is coaxial with the axle; the driving motor is fixed on the back of the frame, and an output shaft of the driving motor is coaxially and fixedly connected with the driving rotating wheel; the driving rotating wheel and the driven rotating wheel are in transmission connection through the synchronous chain;
the brake module adopts a stay-supported electronic hand brake, a brake pad of the stay-supported electronic hand brake is arranged on the axle and coaxially and fixedly connected with the axle, and a brake motor of the stay-supported electronic hand brake is fixed on the back of the rack;
control module respectively with switch, first contact, second contact, driving motor, stay-supported electron manual brake electrical apparatus link to each other for control stay-supported electron manual brake when switch opens and first contact, second contact and loosen and control driving motor work, control stay-supported electron manual brake when switch opens and first contact, second contact separation and control driving motor stop work.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An electric power-assisted hand trailer capable of preventing hands from slipping off is characterized by comprising a hand trailer body, an induction module, a driving module, a braking module and a control module;
the hand trailer body comprises a handle, a frame, a bearing plate, a baffle plate, a first bearing bracket, a second bearing bracket, an axle, a first bearing wheel and a second bearing wheel;
the frame is a plane frame body; the bearing plate is vertically and fixedly connected with the lower end of the front face of the rack; the baffle is fixed on the front surface of the frame and is used for matching with the bearing plate to load goods;
the first bearing bracket and the second bearing bracket are arranged at the lower end of the back of the rack; the axle is parallel to the bearing plate, one end of the axle is coaxially and fixedly connected with the first bearing wheel, the other end of the axle sequentially penetrates through the first bearing support and the second bearing support and then is coaxially and fixedly connected with the second bearing wheel, and the axle is respectively connected with the first bearing support and the second bearing support through bearings and can freely rotate relative to the frame;
the handle is in an inverted U shape and comprises a first vertical rod, a second vertical rod and a cross rod, and two ends of the cross rod are respectively and vertically and fixedly connected with one end of the first vertical rod and one end of the second vertical rod; the other ends of the first vertical rod and the second vertical rod are fixedly connected with the upper end of the rack, so that the cross rod is parallel to the bearing plate, and the plane of the handle is vertical to the bearing plate;
the induction module comprises a sliding rod, a first reset spring, a second reset spring, a power switch, a first contact and a second contact; the inner sides of the first vertical rod and the second vertical rod are respectively provided with a first sliding rail and a second sliding rail along the length direction of the first vertical rod and the second vertical rod; two ends of the sliding rod are respectively matched with the first sliding rail and the second sliding rail, so that the sliding rod is parallel to the cross rod and can freely slide along the first sliding rail and the second sliding rail; the first contact and the second contact are respectively and correspondingly arranged on the middle points of the cross rod and the sliding rod; the first return spring and the second return spring are symmetrically arranged on two sides of the first contact, and one end of each of the first return spring and the second return spring is fixedly connected with the cross rod and the other end of each of the first return spring and the second return spring is fixedly connected with the slide rod; when the handle is held, the sliding rod overcomes the elastic forces of the first return spring and the second return spring to slide towards the cross rod under the action of the holding force, and the first contact and the second contact are contacted; when the handle is loosened, the sliding rod slides towards the direction far away from the cross rod under the action of the elastic force of the first return spring and the second return spring, and the first contact and the second contact are separated; the power switch is arranged on the cross rod;
the driving module comprises a driving motor, a driving rotating wheel, a driven rotating wheel and a synchronous chain; the driven rotating wheel is fixed on the axle and is coaxial with the axle; the driving motor is fixed on the back of the frame, and an output shaft of the driving motor is coaxially and fixedly connected with the driving rotating wheel; the driving rotating wheel and the driven rotating wheel are in transmission connection through the synchronous chain;
the brake module adopts a stay-supported electronic hand brake, a brake pad of the stay-supported electronic hand brake is arranged on the axle and coaxially and fixedly connected with the axle, and a brake motor of the stay-supported electronic hand brake is fixed on the back of the rack;
control module respectively with switch, first contact, second contact, driving motor, stay-supported electron manual brake electrical apparatus link to each other for control stay-supported electron manual brake when switch opens and first contact, second contact and loosen and control driving motor work, control stay-supported electron manual brake when switch opens and first contact, second contact separation and control driving motor stop work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210805374.5A CN115366973A (en) | 2022-07-08 | 2022-07-08 | Electric power-assisted hand trailer capable of preventing hands from slipping off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210805374.5A CN115366973A (en) | 2022-07-08 | 2022-07-08 | Electric power-assisted hand trailer capable of preventing hands from slipping off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115366973A true CN115366973A (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210805374.5A Pending CN115366973A (en) | 2022-07-08 | 2022-07-08 | Electric power-assisted hand trailer capable of preventing hands from slipping off |
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| CN (1) | CN115366973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366972A (en) * | 2022-07-08 | 2022-11-22 | 南京航空航天大学 | Hand trailer with automatic brake function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200189394Y1 (en) * | 2000-02-17 | 2000-07-15 | 학교법인 포항공과대학교 | A baby carriage |
| CN104042014A (en) * | 2014-06-27 | 2014-09-17 | 浙江理工大学 | Button control type brake device of draw-bar luggage |
| CN205769360U (en) * | 2016-05-18 | 2016-12-07 | 嘉兴市欧家旅游用品有限公司 | Luggage truck |
| CN208216820U (en) * | 2018-05-16 | 2018-12-11 | 西安埃克森电源有限公司 | A kind of brake handle structure of trailer |
| CN110775132A (en) * | 2019-02-21 | 2020-02-11 | 深圳市精锋医疗科技有限公司 | Cart control handle and cart |
| CN115366972A (en) * | 2022-07-08 | 2022-11-22 | 南京航空航天大学 | Hand trailer with automatic brake function |
-
2022
- 2022-07-08 CN CN202210805374.5A patent/CN115366973A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200189394Y1 (en) * | 2000-02-17 | 2000-07-15 | 학교법인 포항공과대학교 | A baby carriage |
| CN104042014A (en) * | 2014-06-27 | 2014-09-17 | 浙江理工大学 | Button control type brake device of draw-bar luggage |
| CN205769360U (en) * | 2016-05-18 | 2016-12-07 | 嘉兴市欧家旅游用品有限公司 | Luggage truck |
| CN208216820U (en) * | 2018-05-16 | 2018-12-11 | 西安埃克森电源有限公司 | A kind of brake handle structure of trailer |
| CN110775132A (en) * | 2019-02-21 | 2020-02-11 | 深圳市精锋医疗科技有限公司 | Cart control handle and cart |
| CN115366972A (en) * | 2022-07-08 | 2022-11-22 | 南京航空航天大学 | Hand trailer with automatic brake function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366972A (en) * | 2022-07-08 | 2022-11-22 | 南京航空航天大学 | Hand trailer with automatic brake function |
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