CN218616715U

CN218616715U - Wheel folding mechanism for portable folding emergency rescue trolley

Info

Publication number: CN218616715U
Application number: CN202221800084.3U
Authority: CN
Inventors: 万军; 程小丹; 王德智; 郑权
Original assignee: Nanjing Ruituo Emergency Equipment Technology Co ltd
Current assignee: Nanjing Ruituo Emergency Equipment Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-03-14
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses a wheel folding mechanism for portable folding emergency rescue handcart, including the handcart body, handcart body below is provided with drive wheel and universal wheel, be provided with on the handcart body with the fixed subassembly of drive wheel during operation, still be provided with on the handcart body and be used for the fixed first locating component of universal wheel during operation, handcart body lower surface is provided with and is used for the fixed second locating component of drive wheel after will folding. Through the use of fixed subassembly and first locating component, can fold back respectively with handcart body bottom and laminate two drive wheels and two universal wheels to be convenient for the rescue personnel will wholly carry on inconvenient road of going with, promote the efficiency of rescue.

Description

Wheel folding mechanism for portable folding emergency rescue trolley

Technical Field

The utility model belongs to the technical field of with emergency rescue, concretely relates to wheel folding mechanism for portable folding emergency rescue handcart.

Background

Emergency rescue generally refers to the taking of preventive, preparatory, responsive and restorative activities and plans for sudden, damaging emergencies. According to different types of emergency events, the emergency rescue is divided into the fields of sanitary emergency, traffic emergency, fire emergency, earthquake emergency, factory emergency, household emergency and the like, when natural disasters such as earthquake, debris flow and the like occur, roads are cut off, emergency rescue is needed, the disaster place cannot be rescued through a large vehicle at the moment, the rescue place can be rescued in time by using an emergency rescue vehicle, the vehicle can be quickly maneuvered to an operation or rescue site, wheels used by the existing emergency rescue vehicle are fixedly welded and cannot be adjusted, the wheels of the emergency rescue vehicle cannot normally run due to soil collapse or muddy caused by disaster on the roads leading to the disaster place, and when rescue personnel move the vehicle, the wheels cannot be recovered and can touch the ground, so that the overall marching speed is influenced, and the rescue efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable folding emergency rescue handcart is with wheel folding mechanism to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a portable folding emergency rescue handcart is with wheel folding mechanism, includes the handcart body, handcart body below is provided with drive wheel and universal wheel, be provided with the fixed subassembly of fixing the drive wheel during operation on the handcart body, still be provided with on the handcart body and be used for the fixed first locating component of universal wheel during operation, handcart body lower surface is provided with and is used for the fixed second locating component of drive wheel after will folding.

Preferably, fixed subassembly is including installing in the linking bridge of handcart body lower surface, the linking bridge outside is provided with the lug, the lug outside is provided with the joint board, the joint board is kept away from lug one end and is connected with the handle, install fixed frame on the handle, the handcart body outside is provided with the fixed block, fixed frame and fixed block looks adaptation.

Preferably, the first positioning assembly comprises a support frame installed on the lower surface of the trolley body, two shells are arranged on the outer side of the support frame, a telescopic column is inserted into the shells, a first spring is arranged at one end, located in each shell, of the telescopic column, an inserting rod is connected to the bottom of the telescopic column, and a handle is connected to one end, far away from each shell, of the telescopic column.

Preferably, the rotor is installed to the support frame inside wall, offer on the rotor and be used for inserted bar male jack, and the rotor surface still is provided with the baffle that is used for restricting the inserted bar and removes, be provided with the spliced pole that is used for connecting the universal wheel in the support frame, and support frame one side is provided with the limiting plate of restriction spliced pole swing direction, the spacing hole with jack looks adaptation is seted up on the support frame surface.

Preferably, the second positioning component comprises a supporting block arranged on the lower surface of the trolley body, a blocking rod is inserted in the supporting block, a second spring is arranged on the blocking rod, a limiting column is arranged on the outer side of the blocking rod, a vertical rod limiting the limiting column is arranged on the surface of the supporting block, and one end, far away from the second spring, of the blocking rod is connected with a handle.

Preferably, one end of the connecting bracket, which is far away from the trolley body, is connected with the driving wheel.

Preferably, the lower surface of the trolley body is further provided with two strip-shaped blocks, a sliding rod is arranged between the two strip-shaped blocks, a sliding block is arranged on the sliding rod, and the sliding block is connected with the upper surface of the connecting support.

The utility model discloses a technological effect and advantage: this portable folding emergency rescue handcart is with wheel folding mechanism through the use of fixed subassembly and first locating component, can laminate with handcart body bottom after folding respectively two drive wheels and two universal wheels to the rescue personnel of being convenient for will wholly carry on inconvenient syntropy's road, promote the efficiency of rescue.

Drawings

Fig. 1 is a schematic overall view of the first perspective structure of the present invention;

fig. 2 is a schematic structural view of the fixing assembly of the present invention;

fig. 3 is a schematic view of an overall second perspective structure of the present invention;

fig. 4 is a schematic view of a first viewing angle structure of the first positioning assembly of the present invention;

fig. 5 is a schematic view of a second view structure of the first positioning assembly of the present invention;

FIG. 6 is a cross-sectional view of the connecting post of the present invention;

fig. 7 is a schematic structural diagram of the second positioning assembly of the present invention.

In the figure: 1. a trolley body; 2. a fixing assembly; 201. connecting a bracket; 202. a fixing frame; 203. A fixed block; 204. a bump; 205. a connector tile; 206. a handle; 3. a drive wheel; 4. a first positioning assembly; a positioning assembly; 401. a support frame; 402. a housing; 403. a telescopic column; 404. a grip; 405. A first spring; 406. connecting columns; 407. a limiting hole; 408. rotating the sheet; 409. a baffle plate; 410. a jack 411, a limit plate; 5. a universal wheel; 6. a slide bar; 7. a slider; 8. a second positioning assembly; 801. a handle; 802. a vertical rod; 803. a second spring; 804. a gear lever; 805. a limiting column.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In order to improve the overall emergency rescue efficiency, referring to fig. 1 and 2, the emergency rescue device comprises a trolley body 1, wherein a driving wheel 3 and two universal wheels 5 are arranged below the trolley body 1, the two universal wheels 5 and the two driving wheels 3 are respectively arranged on one side close to a pushing side of the trolley body 1, and the two driving wheels 3 are arranged on one side close to a front side of the trolley body 1. Be provided with on the handcart body 1 with fixed subassembly 2 of drive wheel 3 during operation, when drive wheel 3 is vertical state and contacts with ground, fixed subassembly 2 can fix drive wheel 3. Still be provided with on the handcart body 1 and be used for the fixed first locating component 4 of universal wheel 5 during operation, when universal wheel 5 is vertical state and contacts with ground, first locating component 4 can fix drive wheel 3. The lower surface of the trolley body 1 is provided with a second positioning component 8 for fixing the folded driving wheel 3, when the whole trolley is required to be carried, the fixing of the driving wheel 3 is cancelled by using the fixing component 2, so that the driving wheel 3 can be folded and attached to the lower surface of the trolley body 1, then the driving wheel 3 after being folded is fixed by using the second positioning component 8, the trolley is integrally carried while being convenient, and the efficiency of emergency rescue is improved.

In order to facilitate the folding of the driving wheel, referring to fig. 1, 2, 3, 4, 5, 6 and 7, the fixing assembly 2 includes a connecting bracket 201 installed on the lower surface of the cart body 1, one end of the connecting bracket 201 away from the cart body 1 is connected to the driving wheel 3, and the driving wheel 3 is supported and connected by the connecting bracket 201. The linking bridge 201 outside is provided with lug 204, the lug 204 outside is provided with joint board 205, adopts the articulated mode between lug 204 and the joint board 205, joint board 205 keeps away from lug 204 one end and is connected with handle 206, install fixed frame 202 on the handle 206, the 1 outside of handcart body is provided with fixed block 203, fixed frame 202 and fixed block 203 looks adaptation, along with the rotation of handle 206, drive joint board 205 and keep away from lug 204 one end and follow the removal, drive fixed frame 202 and keep away from the fixed block 203 outside to cancelled the spacing to linking bridge 201, made linking bridge collapsible and laminated with this lower surface of handcart mutually.

Further, the first positioning component 4 comprises a support frame positioning component mounted on the lower surface of the trolley body 1; 401, the support frame positioning assembly; 401, two housings 402 are arranged outside the housing 402, a telescopic column 403 is inserted into the housings 402, a first spring 405 is arranged at one end of the telescopic column 403 positioned in the housing 402, an insertion rod is connected to the bottom of the telescopic column 403, a handle 404 is connected to one end of the telescopic column 403 away from the housing 402, the telescopic column 403 is driven to move in the housing 402 and extrude the first spring 405 as the handle 404 is pulled, and the support frame positioning assembly is arranged; a rotating piece 408 is installed on the inner side wall of the base 401, a jack 410 for inserting an inserted link is formed in the rotating piece 408, and the supporting frame positioning assembly is arranged; a limiting hole 407 matched with the jack 410 is formed in the surface 401, a baffle 409 used for limiting the movement of the inserted link is further arranged on the surface of the rotating piece 408, and the supporting frame positioning component is arranged; a connecting column 406 for connecting the universal wheel 5 is arranged in the frame 401, and a support frame positioning component is arranged; 401 one side is provided with the limiting plate 411 of restriction spliced pole 406 swing direction, along with the extension of flexible post 403, can extract the inserted bar from jack 410 and spacing hole 407 in proper order, the cancellation is spacing to spliced pole 406, can promote spliced pole 406 this moment, make universal wheel 5 move towards the direction of drive wheel 3, and folding, laminate mutually with handcart body 1 lower surface, loosen behind the handle 404, first spring 405 resets, insert the inserted bar again to spacing hole 407 in, and carry out spacingly through two baffles 409 to the inserted bar, avoid spliced pole 406 to drop, can restrict spliced pole 406 pivoted direction through limiting plate 411, make spliced pole 406 can only be folded towards the direction of drive wheel 3 place. The second positioning component 8 comprises a supporting block 806 mounted on the lower surface of the trolley body 1, a stop rod 804 is inserted in the supporting block 806, a second spring 803 is arranged on the stop rod 804, a limiting column 805 is arranged on the outer side of the stop rod 804, a vertical rod 802 for limiting the limiting column 805 is arranged on the surface of the supporting block 806, a handle 801 is connected to one end, far away from the second spring 803, of the stop rod 804, the lower surface of the trolley body 1 is further provided with two strip-shaped blocks, a sliding rod 6 is arranged between the two strip-shaped blocks, a sliding block 7 is arranged on the sliding rod 6, the sliding block 7 is connected with the upper surface of the connecting bracket 201, when the connecting bracket 201 drives the driving wheel 3 to be attached to the lower surface of the trolley, the handle 801 is pulled, and the stop rod 804 is rotated, two limiting columns 805 are turned out from the vertical rod 802, and along with the resetting of the second spring 803, the blocking rod 804 is ejected out from the supporting block 806 and abutted to the connecting support 201, so that the connecting support 201 is fixed, the blocking rod 804 is located vertically below the connecting support 201 and supports the connecting support 201, it needs to be noted that in order to avoid the collision of two driving wheels 3, so that wheel folding operation needs to be performed successively, firstly, the sliding block 7 needs to be slid firstly, the connecting support 201 and the driving wheels 3 are driven to slide along the length direction of the sliding rod 6, the driving wheels 3 move towards the direction of the universal wheels 5, after the movement, the locking ring is used for fixing the driving wheels, then, the other group of driving wheels 3 are attached to the lower surface of the trolley body 1, and the second positioning assembly 8 is used for fixing the driving wheels. The second positioning members 8 are two and have the same structure, but different positions, respectively adjacent to the two driving wheels 3.

When the trolley is used, the handle 404 is pulled at first to drive the telescopic column 403 to move in the shell 402 and extrude the first spring 405, the inserted rod can be sequentially pulled out from the insertion hole 410 and the limiting hole 407 along with the stretching of the telescopic column 403, the limiting of the connecting column 406 is cancelled, the connecting column 406 can be pushed at the moment, the universal wheel 5 moves towards the driving wheel 3 and is folded and is attached to the lower surface of the trolley body 1, after the handle 404 is loosened, the first spring 405 resets to reinsert the inserted rod into the limiting hole 407 and limit the inserted rod through the two baffles 409 to prevent the connecting column 406 from falling off, then the handle 206 is rotated to drive the connecting plate 205 to keep away from one end of the lug 204 and move along with the fixing frame 202 and keep away from the outer side of the fixing block 203, so that the connecting frame is foldable and is attached to the lower surface of the trolley, the handle 801 is pulled, the baffle 804 is rotated to eject the two limiting columns 805 from the 802 and push the baffle 804 out of the supporting block 806 and is abutted to the connecting support 201, so that the baffle 804 is positioned below the vertical support 201 and supports the vertical rod 201. Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention.

Claims

1. The utility model provides a portable folding emergency rescue handcart is with wheel folding mechanism, a serial communication port, including handcart body (1), handcart body (1) below is provided with drive wheel (3) and universal wheel (5), be provided with on handcart body (1) with fixed subassembly (2) of drive wheel (3) during operation fixed, still be provided with on handcart body (1) and be used for fixed first locating component (4) of universal wheel (5) during operation, handcart body (1) lower surface is provided with and is used for folding fixed second locating component (8) of drive wheel (3).

2. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 1, characterized in that: fixed subassembly (2) is including installing in linking bridge (201) of handcart body (1) lower surface, linking bridge (201) outside is provided with lug (204), the lug (204) outside is provided with connection plate (205), lug (204) one end is kept away from in connection plate (205) is connected with handle (206), install fixed frame (202) on handle (206), handcart body (1) outside is provided with fixed block (203), fixed frame (202) and fixed block (203) looks adaptation.

3. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 1, characterized in that: first locating component (4) is including installing in support frame (401) of handcart body (1) lower surface, support frame (401) outside is provided with two casings (402), casing (402) interpolation has flexible post (403), flexible post (403) are located casing (402) one end and are provided with first spring (405), and flexible post (403) bottom is connected with the inserted bar, casing (402) one end is kept away from in flexible post (403) is connected with handle (404).

4. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 3, characterized in that: rotor (408) are installed to support frame (401) inside wall, offer on rotor (408) and be used for inserted bar male jack (410), and rotor (408) surface still is provided with baffle (409) that are used for restricting the inserted bar and remove, be provided with spliced pole (406) that are used for connecting universal wheel (5) in support frame (401), and support frame (401) one side is provided with limiting plate (411) of restriction spliced pole (406) swing direction, spacing hole (407) with jack (410) looks adaptation is seted up on support frame (401) surface.

5. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 1, characterized in that: the second positioning assembly (8) comprises a supporting block (806) installed on the lower surface of the trolley body (1), a stop rod (804) is inserted in the supporting block (806), a second spring (803) is arranged on the stop rod (804), a limiting column (805) is arranged on the outer side of the stop rod (804), a vertical rod (802) limiting the limiting column (805) is arranged on the surface of the supporting block (806), and one end, far away from the second spring (803), of the stop rod (804) is connected with a handle (801).

6. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 2, characterized in that: one end of the connecting bracket (201) far away from the trolley body (1) is connected with the driving wheel (3).

7. The wheel folding mechanism for the portable folding emergency rescue trolley according to claim 1, characterized in that: the trolley is characterized in that two strip-shaped blocks are further arranged on the lower surface of the trolley body (1), a sliding rod (6) is arranged between the two strip-shaped blocks, a sliding block (7) is arranged on the sliding rod (6), and the sliding block (7) is connected with the upper surface of the connecting support (201).