CN113665654A - Loading trolley - Google Patents

Loading trolley Download PDF

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Publication number
CN113665654A
CN113665654A CN202111066882.8A CN202111066882A CN113665654A CN 113665654 A CN113665654 A CN 113665654A CN 202111066882 A CN202111066882 A CN 202111066882A CN 113665654 A CN113665654 A CN 113665654A
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CN
China
Prior art keywords
push
loading trolley
support
pull
supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111066882.8A
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Chinese (zh)
Other versions
CN113665654B (en
Inventor
江峰
刘宇兴
钟明睿
翁卢臻
汪伟群
林群慧
谢政
朱经洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by Guangdong Power Grid Co Ltd, Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202111066882.8A priority Critical patent/CN113665654B/en
Publication of CN113665654A publication Critical patent/CN113665654A/en
Application granted granted Critical
Publication of CN113665654B publication Critical patent/CN113665654B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • B62B5/049Braking mechanisms; Locking devices against movement locking against movement by contacting the floor or a wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/04Braking mechanisms; Locking devices against movement
    • B62B5/0438Braking mechanisms; Locking devices against movement hand operated
    • B62B5/0447Braking 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 belongs to the technical field of transportation tools, and discloses a loading trolley which comprises a bottom plate and a supporting structure, wherein the bottom plate is rotatably connected with a plurality of rollers, the supporting structure comprises a push-pull assembly and a supporting assembly, the push-pull assembly is arranged on the bottom plate in a sliding mode along the length direction of the loading trolley, the supporting assembly is arranged on the bottom plate in a sliding mode along the height direction of the loading trolley, the supporting assembly can be pushed by the push-pull assembly to abut against the push-pull assembly and a walking surface respectively along the height direction of the loading trolley, so that the supporting assembly has a supporting state, and the push-pull assembly can drive the supporting assembly to be separated from the walking surface along the height direction of the loading trolley, so that the supporting assembly has a separated state. The loading trolley has good supporting stability and braking performance, and the use performance of the loading trolley is improved.

Description

Loading trolley
Technical Field
The invention relates to the technical field of transport tools, in particular to a loading trolley.
Background
With the development of the times, the performance requirements of users on loading trolleys are higher and higher. When the trolley is used for loading products with higher precision or value, the requirements on the loading stability and the braking performance of the trolley are higher. The loading trolley in the prior art is single in most structures, can only be used for loading and transporting cargos, needs to fix the position of the trolley by means of external force when the cargos are loaded on the trolley, namely needs to brake the trolley by means of the external force, and is easy to incline when the cargos are loaded on uneven road surfaces by the trolley, so that the trolley is not stable, the loading stability is poor, and the working efficiency for loading the cargos is low.
Disclosure of Invention
The invention aims to provide a loading trolley, which aims to solve the problems that the loading stability of the loading trolley in the prior art is poor and the loading trolley cannot be braked.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a loading trolley, includes the bottom plate, the bottom plate rotates and is connected with a plurality of gyro wheels, still includes:
the supporting structure comprises a bottom plate push-pull assembly and a supporting assembly, wherein the bottom plate push-pull assembly is arranged in the length direction of the loading trolley in a sliding mode, the supporting assembly is arranged on the bottom plate in the height direction of the loading trolley in the sliding mode, the push-pull assembly can push the supporting assembly to abut against the push-pull assembly and a walking surface respectively in the height direction of the loading trolley, the supporting assembly is enabled to have a supporting state, and the push-pull assembly can drive the supporting assembly to be separated from the walking surface in the height direction of the loading trolley, so that the supporting assembly is enabled to have a separated state.
Preferably, the bottom plate is provided with a sliding groove extending along the length direction of the loading trolley and a containing groove communicated with the sliding groove, the push-pull assembly comprises a push-pull rod slidably arranged in the sliding groove and a push block fixedly arranged on the push-pull rod, the support assembly is partially arranged in the containing groove, and the push-pull rod can drive the push block to move so as to enable the push block to be abutted to or separated from the support assembly.
Preferably, the push-pull assembly further comprises two first elastic members, and the two first elastic members are respectively and fixedly connected to two ends of the push block and respectively abut against the side walls of the accommodating groove along the length direction of the loading trolley.
Preferably, the supporting assembly comprises a second elastic part and a supporting part which is located in the accommodating groove in a sliding manner along the height direction of the loading trolley, two ends of the second elastic part are respectively connected with the supporting part and the bottom wall of the accommodating groove, and the second elastic part can drive the supporting part to be separated from the walking surface.
Preferably, the loading trolley further comprises a limiting sleeve, the second elastic piece is located in the limiting sleeve, and when the supporting component is in the supporting state, the supporting piece abuts against the limiting sleeve.
Preferably, the supporting member comprises a first supporting portion and a second supporting portion connected with the first supporting portion, when the supporting assembly is in the supporting state, two ends of the first supporting portion respectively abut against the push block and the limiting sleeve, and the second supporting portion abuts against the walking surface.
Preferably, the first support part is in a frustum shape, and an area of an upper end surface of the first support part is smaller than an area of a lower end surface of the first support part.
Preferably, at least a portion of the second support portion contacting the walking surface is provided with an anti-slip pattern.
Preferably, the number of the support structures is two, and the two support structures are arranged at intervals along the width direction of the loading trolley.
Preferably, the loading trolley further comprises an operating rod and a locking member, the operating rod is arranged in the bottom plate in a sliding mode along the length direction of the loading trolley, the operating rod comprises a connecting portion and a push-pull portion, two ends of the connecting portion are fixedly connected with the two push-pull rods respectively, a plurality of first through holes are formed in the push-pull portion at intervals, the bottom plate is provided with second through holes, and the locking member penetrates through the second through holes and is inserted into one of the first through holes.
The invention has the beneficial effects that:
the invention aims to provide a loading trolley, when cargoes need to be loaded, a push rod component is pushed or pulled along the length direction of the loading trolley until a support component abuts against a push-pull component and a walking surface along the height direction of the loading trolley respectively, so that the support component supports the loading trolley on the walking surface, and the loading trolley is supported and braked simultaneously; when the loading trolley is required to be pushed to transport cargos, the push rod assembly is pushed or pulled along the length direction of the loading trolley until the supporting assembly is separated from the walking surface along the height direction of the loading trolley, so that the loading trolley can be pushed to transport cargos, and the structure is simple.
Drawings
FIG. 1 is a schematic structural view of a support assembly of a loading cart in a support state according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a loading cart with its support assemblies in a disengaged position, according to an embodiment of the present invention;
fig. 3 is a top view of a loading cart according to an embodiment of the present invention.
In the figure:
1. a base plate; 11. accommodating grooves;
2. a roller;
3. a push-pull assembly; 31. a push-pull rod; 32. a push block; 33. a first elastic member;
4. a support assembly; 41. a second elastic member; 42. a support member; 421. a first support section; 422. a second support portion;
5. a limiting sleeve;
6. an operating lever; 61. a connecting portion; 62. a push-pull part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
The invention aims to provide a loading trolley, which comprises a base plate 1 and a supporting structure, wherein the base plate 1 is rotatably connected with a plurality of rollers 2, the loading trolley also comprises a push-pull component 3 arranged on the base plate 1 in a sliding manner along the length direction of the loading trolley, and a supporting component 4 arranged on the base plate 1 in a sliding manner along the height direction of the loading trolley, the push-pull component 3 can push the supporting component 4 to respectively abut against the push-pull component 3 and a walking surface along the height direction of the loading trolley, so that the supporting component 4 has a supporting state, and the push-pull component 3 can drive the supporting component 4 to be separated from the walking surface along the height direction of the loading trolley, so that the supporting component 4 has a separated state.
As shown in fig. 1 and 2, when a load needs to be loaded, the push rod assembly is pushed or pulled along the length direction of the load trolley until the support assembly 4 abuts against the push-pull assembly 3 and the walking surface along the height direction of the load trolley respectively, so that the support assembly 4 supports the load trolley on the walking surface, and the load trolley is supported and braked simultaneously, and it can be understood that the support assembly 4 increases the contact area between the load trolley and the walking surface, thereby preventing the load trolley from tilting on the uneven walking surface, improving the stability of the load trolley when the load is loaded, and simultaneously preventing the load trolley from being displaced when the load is loaded on the load trolley, and improving the usability of the load trolley; when the loading trolley is required to be pushed to transport cargos, the push rod assembly is pushed or pulled along the length direction of the loading trolley until the supporting assembly 4 is separated from the walking surface along the height direction of the loading trolley, so that the loading trolley can be pushed to transport cargos, and the structure is simple. In this embodiment, the walking surface is the ground, and the bottom plate 1 of the loading trolley is rotatably connected with four rollers 2. It can be understood that the loading trolley can be suitable for loading various cargoes, so the walking surface can be determined according to the actual use environment.
As shown in fig. 1 and 2, the bottom plate 1 is provided with a sliding groove extending along the length direction of the loading trolley and an accommodating groove 11 communicated with the sliding groove, the push-pull assembly 3 comprises a push-pull rod 31 slidably disposed in the sliding groove and a push block 32 fixedly disposed on the push-pull rod 31, the support assembly 4 is partially disposed in the accommodating groove 11, and the push-pull rod 31 can drive the push block 32 to move, so that the push block 32 is abutted to or separated from the support assembly 4. By arranging the push block 32 on the push-pull rod 31, it can be understood that the push block 32 arranged on the push-pull rod 31 is driven to push the support assembly 4 to abut against the traveling surface along the height direction of the loading trolley by pushing or pulling the push-pull rod 31 along the length direction of the loading trolley, so as to simultaneously support and brake the loading trolley; the push-pull rod 31 is pushed or pulled continuously along the length direction of the loading trolley, so that the push block 32 on the push-pull rod 31 is separated from the support component 4, and the loading trolley can run.
Optionally, as shown in fig. 1 and fig. 2, the push-pull assembly 3 further includes two first elastic members 33, and along the length direction of the loading trolley, the two first elastic members 33 are respectively and fixedly connected to two ends of the push block 32 and respectively abut against the side walls of the accommodating groove 11. It can be understood that the first elastic member 33 is always in a compressed state, and the elastic restoring force of the first elastic member 33 is used as a part of the power source to drive the push-pull rod 31 to move along the extending direction of the sliding chute, so as to drive the supporting component 4 to be supported on or separated from the walking surface. Specifically, for example, when the supporting component 4 is in the separated state, the elastic restoring force of the first elastic member 33 can serve as a part of power to drive the push block 32 on the push-pull rod 31 to move close to the supporting component 4 along the extending direction of the chute, wherein the other part of power is external force, so as to drive the push block 32 on the push-pull rod 31 to abut against the supporting component 4, and simultaneously, the supporting component 4 abuts against the walking surface, so that the supporting component 4 reaches the supporting state; the push-pull rod 31 is further pulled or pushed in the extension direction of the chute, so that the support assembly 4 again reaches the detached state.
Alternatively, the first elastic member 33 is a compression spring. Specifically, the compression spring is sleeved on the push-pull rod 31, and the compression spring is welded to the push block 32. As an alternative, the first elastic member 33 is an elastic washer. Specifically, the elastic washer is sleeved on the push-pull rod 31, and the elastic washer is adhered to the side wall of the push block 32.
As shown in fig. 1 and 2, the supporting assembly 4 includes a second elastic member 41 and a supporting member 42 located in the receiving groove 11 and partially sliding along the height direction of the loading trolley, two ends of the second elastic member 41 are respectively connected to the supporting member 42 and the bottom wall of the receiving groove 11, and the second elastic member 41 can drive the supporting member 42 to separate from the walking surface. It will be appreciated that when the support assembly 4 is in the supporting state, the second elastic element 41 is in the compressed state, and when the push-pull rod 31 is driven away from the support element 42, the second elastic element 41 simultaneously drives the support element 42 away from the walking surface, so that the loading wagon can normally run.
Alternatively, the second elastic member 41 is a compression spring. Specifically, both ends of the second elastic member 41 are welded with the bottom wall of the receiving groove 11 and the support member 42, respectively. In other embodiments, the second elastic member 41 is an elastic washer, and both ends of the elastic washer are respectively bonded to the bottom wall of the receiving groove 11 and the supporting member 42.
As shown in fig. 1 and 2, the loading trolley further includes a limiting sleeve 5, the second elastic member 41 is located in the limiting sleeve 5, and when the supporting assembly 4 is in the supporting state, the supporting member 42 abuts against the limiting sleeve 5. It will be appreciated that the limiting sleeve 5 can define the movement path of the second elastic element 41 in the height direction of the loading trolley, avoiding the second elastic element 41, and thus the support element 42, being ectopic or inclined; meanwhile, the limiting sleeve 5 can reduce the acting force applied to the second elastic part 41, the service life of the second elastic part 41 is prolonged, the cost is saved, and the maintenance frequency is reduced, in addition, the limiting sleeve 5 can limit the movement range of the supporting part 42 close to the walking surface along the height direction of the loading trolley, it can be understood that when the supporting part 42 abuts against the limiting sleeve 5, namely the limiting position of the supporting part 42 close to the walking surface along the height direction of the loading trolley, at this moment, the supporting part 42 abuts against the walking surface.
Optionally, as shown in fig. 1 and fig. 2, the supporting member 42 includes a first supporting portion 421 and a second supporting portion 422 connected to the first supporting portion 421, when the supporting assembly 4 is in the supporting state, two ends of the first supporting portion 421 respectively abut against the push block 32 and the limiting sleeve 5, and the second supporting portion 422 abuts against the walking surface. With the arrangement, when the supporting component 4 is in the supporting state, the limiting sleeve 5 can be ensured to effectively limit the movement range of the supporting piece 42 close to the walking surface along the height direction of the loading trolley.
Alternatively, as shown in fig. 1 and 2, the first support part 421 has a frustum shape, and an area of an upper end surface of the first support part 421 is smaller than an area of a lower end surface of the first support part 421. With this arrangement, the side wall of the first support portion 421 forms a guiding surface, when the loading cart needs to be braked, the push-pull rod 31 is pulled along the extending direction of the sliding chute, and the guiding surface of the first support portion 421 can guide the push block 32 on the push-pull assembly 3 to reach the upper end surface of the first support portion 421, so as to brake the loading cart conveniently.
Preferably, as shown in fig. 1 and 2, an end surface of the push block 32 close to the first support 421 is a spherical surface. So set up, be convenient for ejector pad 32 along the spigot surface of first supporting part 421 reachs the up end of first supporting part 421, simultaneously, do not destroy the surface of first supporting part 421 in the in-process of the spigot surface arrival of first supporting part 421 of ejector pad 32 along first supporting part 421, can improve the braking precision of loading the dolly, also can further reduce the maintenance frequency and the cost of maintenance of loading the dolly simultaneously.
Preferably, at least a portion of the second support portion 422 contacting the walking surface is provided with an anti-slip pattern. Through set up anti-skidding line on second supporting part 422, can increase the ability of adhering to of second supporting part 422 attached to walking face to further improve the support stability and the brake performance of loading dolly when loading goods.
Preferably, as shown in fig. 3, there are two support structures, which are spaced apart in the width direction of the loading trolley. So set up, can further improve the support stability and the brake performance of loading dolly when loading goods.
Preferably, the supporting structure comprises a plurality of supporting components 4, the plurality of supporting components 4 are arranged at intervals along the length direction of the loading trolley, a plurality of pushing blocks 32 are arranged on the push-pull rod 31 at intervals, and the plurality of supporting components 4 and the plurality of pushing blocks 32 are arranged in a one-to-one correspondence manner. Thereby further improving the supporting stability and the braking performance of the loading trolley when loading cargoes. In this embodiment, as shown in fig. 3, each support structure includes two support assemblies 4, two push blocks 32 are disposed on the push-pull rod 31 at intervals, and the two support assemblies 4 and the two push blocks 32 are disposed in a one-to-one correspondence.
Preferably, the loading trolley further comprises an operating rod 6 and a locking member, the operating rod 6 is arranged in the bottom plate 1 in a sliding mode along the length direction of the loading trolley, the operating rod 6 comprises a connecting portion 61 and a push-pull portion 62, two ends of the connecting portion 61 are fixedly connected with the two push-pull rods 31 respectively, the push-pull portion 62 is provided with a plurality of first through holes at intervals, the bottom plate 1 is provided with second through holes, and the locking member penetrates through the second through holes and is inserted into one of the first through holes. It can be understood that the push-pull rod 31 is pushed or pulled by the operating rod 6, so that the two ends of the first supporting portion 421 of the supporting member 42 abut against the push block 32 and the limiting sleeve 5, respectively, and the second supporting portion 422 abuts against the walking surface, so that the loading trolley reaches the supporting state, at this time, the position of the operating rod 6 is fixed by inserting the locking member through the second through hole and the corresponding first through hole on the push-pull portion 62, so as to fix the position of the push-pull rod 31, so that the loading trolley is kept in the supporting state, thereby facilitating the loading of goods onto the loading trolley. When the goods on the loading trolley need to be transported, the locking piece is pulled out from the first through hole, and the push-pull part 62 is pushed or pulled, so that the push block 32 on the push-pull rod 31 is driven to be separated from the first supporting part 421 of the supporting part 42, and the loading trolley can normally run. In the present embodiment, the push-pull portion 62 of the operating lever 6 and the connecting portion 61 of the operating lever 6 are integrally molded or welded.
Wherein, the loading trolley also comprises a handle fixedly connected with the bottom plate 1. The handle is used for pushing the loading trolley to normally run.
Example two
The present embodiment does not include the push-pull portion 62 of the operating lever 6 and the connecting portion 61 of the operating lever 6 in the first embodiment, which are integrally formed or welded, the push-pull portion 62 is not provided with the first through hole, the base plate 1 is not provided with the second through hole, and no locking member is included. The push-pull portion 62 of the operating lever 6 of the present embodiment is screwed to the connecting portion 61 of the operating lever 6.
The loading trolley further comprises a motor and a speed reducer which are fixedly arranged on the bottom plate 1, an output shaft of the motor is in transmission connection with an input shaft of the speed reducer, an output shaft of the speed reducer is in transmission connection with a push-pull part 62, and the push-pull part 62 is in threaded connection with a connecting part 61 of the operating rod 6, so that the motor can drive the push-pull part 62 to rotate, and further drive the push block 32 on the operating rod 6 to move back and forth along the length direction of the loading trolley. Preferably, the push-pull portion 62 is a lead screw.
EXAMPLE III
The embodiment provides a vehicle, and the loading trolley of the first embodiment or the second embodiment is applied to the vehicle, wherein the vehicle is provided with a carriage, a track is arranged in the carriage, and the roller 2 of the loading trolley is positioned on the track in a rolling mode. It can be understood that the surface of the track is a walking surface, so that goods in the carriage are transported out of the carriage through the loading trolley, and manpower is saved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a loading trolley, includes bottom plate (1), bottom plate (1) rotates and is connected with a plurality of gyro wheels (2), its characterized in that includes:
the supporting structure comprises a push-pull component (3) which is arranged on the bottom plate (1) in a sliding mode along the length direction of the loading trolley and a supporting component (4) which is arranged on the bottom plate (1) in a sliding mode along the height direction of the loading trolley, the push-pull component (3) can push the supporting component (4) to respectively abut against the push-pull component (3) and a walking surface along the height direction of the loading trolley, the supporting component (4) is enabled to have a supporting state, the push-pull component (3) can drive the supporting component (4) to be separated from the walking surface along the height direction of the loading trolley, and the supporting component (4) is enabled to have a separated state.
2. A loading trolley according to claim 1, characterised in that the base plate (1) is provided with a chute extending in the length direction of the loading trolley and a receiving groove (11) communicating with the chute, the push-pull assembly (3) comprises a push-pull rod (31) slidably arranged in the chute and a push block (32) fixedly arranged on the push-pull rod (31), the support assembly (4) is partially arranged in the receiving groove (11), and the push-pull rod (31) can drive the push block (32) to move so as to abut against or separate the push block (32) from the support assembly (4).
3. A loading trolley according to claim 2, characterised in that the push-pull assembly (3) further comprises two first elastic members (33), and the two first elastic members (33) are respectively fixedly connected to two ends of the push block (32) along the length direction of the loading trolley and respectively abut against the side walls of the accommodating groove (11).
4. A loading trolley according to claim 2, characterised in that the support assembly (4) comprises a second elastic member (41) and a support member (42) which is located in the receiving groove (11) and slides partially in the height direction of the loading trolley, both ends of the second elastic member (41) are respectively connected with the support member (42) and the bottom wall of the receiving groove (11), and the second elastic member (41) can drive the support member (42) to separate from the walking surface.
5. A loading trolley according to claim 4, characterised in that it further comprises a limit sleeve (5), in that the second elastic element (41) is located inside the limit sleeve (5), and in that the support element (42) abuts against the limit sleeve (5) when the support assembly (4) is in the support condition.
6. The loading trolley according to claim 5, wherein the support member (42) comprises a first support portion (421) and a second support portion (422) connected to the first support portion (421), when the support assembly (4) is in the support state, two ends of the first support portion (421) respectively abut against the push block (32) and the limiting sleeve (5), and the second support portion (422) abuts against the walking surface.
7. The loading trolley according to claim 6, wherein the first support section (421) has a frustum shape, and an area of an upper end surface of the first support section (421) is smaller than an area of a lower end surface of the first support section (421).
8. A loading trolley according to claim 6, characterised in that the second support part (422) is provided with anti-skid threads at least in the part that is in contact with the walking surface.
9. A loading trolley according to claim 2, characterised in that there are two of the support structures, the two support structures being spaced apart in the width direction of the loading trolley.
10. A loading trolley according to claim 9, characterised in that the loading trolley further comprises an operating rod (6) and a locking member, the operating rod (6) is slidably arranged in the bottom plate (1) along the length direction of the loading trolley, the operating rod (6) comprises a connecting part (61) and a push-pull part (62), two ends of the connecting part (61) are fixedly connected with the two push-pull rods (31), the push-pull part (62) is provided with a plurality of first through holes at intervals, the bottom plate (1) is provided with a second through hole, and the locking member passes through the second through hole and is inserted into one of the first through holes.
CN202111066882.8A 2021-09-13 2021-09-13 Loading trolley Active CN113665654B (en)

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