CN210653190U

CN210653190U - Mechanical assembly dolly

Info

Publication number: CN210653190U
Application number: CN201921408864.1U
Authority: CN
Inventors: 陈咏琪; 于兆勤; 王聪聪
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-02
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to the field of a trolley, in particular to a mechanical assembly trolley, which comprises a push plate and roller components, wherein the ground-near end surface of the push plate is provided with at least three mounting grooves, and the inner side wall of each mounting groove is provided with at least one group of oppositely-arranged clamping grooves; the roller component comprises a connecting box arranged in the mounting groove, a clamping block capable of extending out of and retracting into the connecting box and a caster wheel connected with the connecting box; the connecting box is arranged in the mounting groove, and the clamping block extends out of the connecting box and is clamped with the clamping groove. When the trolley needs to be stored, the roller assemblies are required to be disassembled, and the connecting box only needs to be pulled out, so that the roller assemblies of the trolley can be disassembled, and the problem of storage and occupation space after the trolley is used is avoided. When the roller assembly is used, the connecting box is only required to be arranged in the mounting groove, and meanwhile, the clamping block is clamped with the clamping groove, so that the roller assembly can be mounted. The disassembly and the installation are convenient, and the disassembly and the installation are efficient.

Description

Mechanical assembly dolly

Technical Field

The utility model relates to a teaching aid field, more specifically relates to a mechanical assembly dolly.

Background

The machine is a generic name of a machine and a mechanism, the machine is a tool device capable of reducing work difficulty or labor saving for people, articles such as chopsticks, brooms and tweezers can be called as machines, the machines are simple machines, the complex machine is composed of two or more simple machines, the more complex machines are generally called as machines, and the mechanism and the machine are not different from the viewpoint of structure and movement and are generally called as the machine.

Mechanical trolley on the market is generally used for the short distance transportation, and present mechanical trolley at present stage can only fold subassemblies such as handrail, and can not dismantle the gyro wheel of base, if dismantle the fastener that needs will install the truckle and dismantle, inconvenient dismantlement and installation, so can not carry out the dismantlement of truckle under the general condition. The dolly is deposited together with the truckle, and in order to prevent that the dolly from removing on the warehouse, the one side that the dolly was equipped with the gyro wheel is placed up for it is difficult to stack article on the dolly, leads to occuping the warehouse space and causes the inside space in warehouse not enough.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art well mechanical trolley's gyro wheel is difficult to the problem of dismantling, provides a mechanical assembly dolly, can realize the gyro wheel of dolly and install and dismantle fast.

In order to solve the technical problem, the utility model discloses a technical scheme is: a mechanical assembly trolley comprises a push plate, a handrail and a roller assembly, wherein the handrail and the roller assembly are rotatably connected with the push plate, at least three mounting grooves are formed in the ground-near end surface of the push plate, and at least one group of clamping grooves which are oppositely arranged are formed in the inner side wall of each mounting groove; the roller assembly comprises a connecting box which is arranged in the mounting groove, a clamping block which can extend out of or retract into the connecting box and a caster which is connected with the connecting box; the connecting box is arranged in the mounting groove, and the clamping block extends out of the connecting box and is clamped with the clamping groove.

The mounting groove is provided with at least three, is triangular distribution, if have four, then distributes in four end angles of push pedal. After the mounting groove is packed into with the connecting box, the fixture block stretches out outside the connecting box to in the block advances the draw-in groove, realize the equipment of wheel components and mounting groove, because the draw-in groove sets up relatively, can give the stable bearing capacity of wheel components, can not deviate from in the use. When the roller assembly needs to be disassembled, the clamping block is retracted into the connecting box and separated from the clamping groove.

Preferably, the connecting box is provided with a through hole for the fixture block to extend out and retract; and a push-out mechanism for pushing the fixture block to extend out of the connecting box and a retraction mechanism for pulling the fixture block to retract into the connecting box are arranged in the connecting box. The pushing mechanism pushes the clamping block to penetrate through the through hole to extend out of the connecting box and fixes the clamping block in an extending state. When the pushing mechanism is not pushed to extend any more after being reset, the retraction mechanism automatically pulls the clamping block back to the original position.

Preferably, the pushing mechanism comprises a screw rod rotationally connected with the connecting box, a sliding block in threaded connection with the screw rod, a conical barrel which is arranged on the sliding block, the inclined surface of the conical barrel is abutted to the clamping block and pushes the clamping block to extend out of the through hole, and a driving mechanism for driving the screw rod to rotate; the sliding block is provided with a sliding rail block connected with the sliding rail on the inner wall of the connecting box. The driving mechanism enables the screw rod to rotate, the sliding block installed on the screw rod can move up and down, and the sliding rail block can enable the sliding block to move up and down more smoothly. When the slider upwards moves, the cone cylinder which is connected with the clamping block in an abutting mode upwards moves, and the diameter of the cone cylinder is larger and larger, so that the clamping block is pushed to extend out of the connecting box. When the sliding block moves downwards, the conical barrel does not push out the clamping block any more, and the retraction mechanism pulls the clamping block back into the connecting box.

Preferably, the driving mechanism comprises a gear arranged on the screw rod and a rotating rod, one end of the rotating rod is meshed with the gear, and the other end of the rotating rod extends out of the connecting box. The rotating rod is screwed to enable the gear to rotate along with the rotating rod, so that the lead screw is enabled to rotate, the roller assemblies can be manually disassembled, and the disassembly is more convenient without the assistance of other tools.

Preferably, a hand wheel is installed at one end of the rotating rod extending out of the connecting box. The hand wheel is more convenient to screw the rotating rod.

Preferably, the retraction mechanism comprises an elastic element for pulling the fixture block, and the deformation direction of the elastic element is consistent with the extending or retracting direction of the fixture block. The elastic piece can be a spring, and the spring resets after the conical barrel which pushes the fixture block to extend descends, so that the fixture block is pulled to reset.

Preferably, the side surface of the push plate is provided with a handle. After the roller assemblies are disassembled, the push plate is pulled through the handle, so that the difficulty in carrying the push plate is avoided.

Preferably, the end face, far away from the mounting groove, of the push plate is provided with a stop block, and the stop block is far away from the connection position of the handrail and the push plate. When the trolley is pushed by the handrails, the goods far away from the handrails are limited by the baffle plates, so that the goods are prevented from falling off.

Preferably, the clamping part of the clamping block and the clamping groove is conical. The conical clamping block can enter the clamping groove more easily; when the connecting box is dismantled, if the fixture block does not finish the connection box that withdraws, the inclined plane and the draw-in groove contact of conical fixture block, the draw-in groove also can promote the fixture block withdrawal connection box.

Preferably, a connecting plate is arranged between the connecting box and the caster wheel, the connecting box is fixedly connected with the connecting plate, and the caster wheel is a universal caster wheel.

Compared with the prior art, the beneficial effects are: when the trolley needs to be stored, the roller assemblies are required to be disassembled, and the connecting box only needs to be pulled out, so that the roller assemblies of the trolley can be disassembled, and the problem of storage and occupation space after the trolley is used is avoided. When the roller assembly is used, the connecting box is only required to be arranged in the mounting groove, and meanwhile, the clamping block is clamped with the clamping groove, so that the roller assembly can be mounted. The disassembly and the installation are convenient, and the disassembly and the installation are efficient.

Drawings

FIG. 1 is a schematic structural view of a mechanical assembly cart according to the present invention;

FIG. 2 is a partial enlarged view of the location A of FIG. 1;

fig. 3 is a schematic structural view of another embodiment of the mechanical assembly cart of the present invention.

Wherein: 1. pushing the plate; 101. a handrail; 2. a roller assembly; 3. mounting grooves; 4. a card slot; 5. a connection box; 501. a through hole; 6. a clamping block; 7. a caster wheel; 8. a screw rod; 9. a slider; 10. a conical cylinder; 11. a slide rail block; 12. a gear; 13. rotating the rod; 14. a hand wheel; 15. an elastic member; 16. a connecting plate; 17. a handle; 18. and a stop block.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1-2, an embodiment of a mechanically assembled cart includes a push plate 1, a handrail 101 rotatably connected to the push plate 1, and a roller assembly 2, wherein the push plate 1 is provided with four mounting grooves 3 distributed at four corners of the push plate 1. A group of oppositely arranged clamping grooves 4 are formed in the inner side wall of the mounting groove 3; the roller assembly 2 comprises a connecting box 5 arranged in the mounting groove 3, a clamping block 6 capable of extending out of or retracting into the connecting box 5 and a caster wheel 7 connected with the connecting box 5; the connecting box 5 is arranged in the mounting groove 3, and the clamping block 6 extends out of the connecting box 5 and is clamped with the clamping groove 4. The part of the clamping block 6 extending into the clamping groove 4 is conical.

Wherein, the connecting box 5 is provided with a through hole 501 for extending and retracting the fixture block 6; the connecting box 5 is internally provided with a push-out mechanism for pushing the clamping block 6 to extend out of the connecting box 5 and a retraction mechanism for pulling the clamping block 6 to retract into the connecting box 5. The pushing-out mechanism pushes the fixture block 6 to pass through the through hole 501 to extend out of the connecting box 5 and fix the fixture block 6 in the extended state. When the pushing mechanism resets and does not push the fixture block 6 to extend, the retraction mechanism automatically pulls the fixture block 6 back to the original position.

In this embodiment, the pushing-out mechanism includes a screw rod 8 rotatably connected to the connection box 5, a slider 9 in threaded connection with the screw rod 8, a cone 10 mounted on the slider 9 and having an inclined surface abutting against the fixture block 6 and pushing the fixture block 6 to extend out of the through hole 5, and a driving mechanism for driving the screw rod 8 to rotate; the slide block 9 is provided with a slide rail block 11 connected with the inner wall of the connecting box 5 by a slide rail. The driving mechanism enables the screw rod 8 to rotate, the sliding block 9 installed on the screw rod 8 can move up and down, and the sliding rail block 11 can enable the sliding block 9 to move more smoothly. When the slide block 9 moves upwards, the conical barrel 10 abutted with the fixture block 6 moves upwards, and the diameter of the conical barrel 10 is larger and larger, so that the fixture block 6 is pushed to extend out of the connecting box 5; when the sliding block 9 moves downwards, the conical barrel 10 resets, the clamping block is not pushed out any more, and the retraction mechanism pulls the clamping block 6 back into the connecting box.

Specifically, the driving mechanism comprises a gear 12 arranged on the screw rod 8 and a rotating rod 13, one end of the rotating rod is meshed with the gear 12, the other end of the rotating rod extends out of the connecting box 5, and a hand wheel 14 is arranged at one end of the rotating rod 13 outside the connecting box 5. The hand wheel 14 is rotated, so that the rotating rod 13 is rotated, the gear 12 rotates along with the rotating rod, the screw rod 8 rotates, the hand wheel can be rotated to manually detach the roller assembly 2, other tools are not needed for assistance, and the roller assembly is more convenient to detach.

Specifically, the retraction mechanism comprises an elastic piece 15 for pulling the fixture block 6, and the deformation direction of the elastic piece 15 is consistent with the extending or retracting direction of the fixture block 6. The elastic element can be a spring, and after the conical cylinder 10 extending out of the fixture block 6 is pushed to descend, the spring resets to pull the fixture block 6 to retract into the connecting box 5.

In addition, a connecting plate 16 is arranged between the connecting box 5 and the caster 7, the connecting box 5 is fixedly connected with the connecting plate 16, and the caster 7 is a universal caster.

The utility model discloses a theory of operation or work flow: when the roller assembly 2 needs to be installed, the handwheel 14 is rotated after the connecting box 5 is arranged in the mounting groove 3, so that the rotating rod 13 drives the screw rod 8 to rotate. The slider 9 moves upwards along with the rotation of the screw rod, the conical barrel 10 stretches the fixture block 6, so that the fixture block 6 extends out of the through hole 501 to connect the box 5 and extends into the clamping groove 4, and the clamping groove 4 is arranged relatively, so that the fixture block 6 clamped with the clamping groove 4 can provide stable supporting force to support the connecting box 5. When the roller assembly 2 needs to be disassembled, the hand wheel 14 is rotated in the opposite direction, the sliding block 9 is reset, the conical cylinder 10 does not expand the fixture block 6, the elastic component 15 pulls the fixture block 6 back into the connecting box 5 to be separated from the clamping groove 4, and then the connecting box 5 is pulled out of the mounting groove 3.

The beneficial effects of this embodiment: when the trolley needs to be stored, the roller assemblies are required to be disassembled, and the connecting box only needs to be pulled out, so that the roller assemblies of the trolley can be disassembled, and the problem of storage and occupation space after the trolley is used is avoided. When the roller assembly is used, the connecting box is only required to be arranged in the mounting groove, and meanwhile, the clamping block is clamped with the clamping groove, so that the roller assembly can be mounted. The disassembly and the installation are convenient, and the disassembly and the installation are efficient.

Example 2

Fig. 3 shows another embodiment of the present invention, which is different from embodiment 1 in that a handle 17 is installed on the side of the push plate 1. After the roller assembly 2 is disassembled, the push plate 1 is pulled through the handle 17, so that the difficulty in carrying the push plate 1 is avoided. The push plate 1 is provided with a stop block 18 on the end surface far away from the mounting groove 3, and the stop block 18 is far away from the connection part of the handrail 101 and the push plate 1. When the trolley is pushed by the handrail 101, the goods far away from the handrail 101 are limited by the baffle 18, so that the goods are prevented from falling off.

The working principle of this embodiment is the same as that of embodiment 1.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. 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

1. The mechanical assembly trolley comprises a push plate (1) and a handrail (101) rotatably connected with the push plate (1), and is characterized by further comprising a roller assembly (2), wherein at least three mounting grooves (3) are formed in the push plate (1), and at least one group of clamping grooves (4) which are oppositely arranged are formed in the inner side wall of each mounting groove (3); the roller assembly (2) comprises a connecting box (5) arranged in the mounting groove (3), a clamping block (6) capable of extending out of or retracting into the connecting box (5) and a caster (7) connected with the connecting box (5); the connecting box (5) is installed in the mounting groove (3), and the clamping block (6) extends out of the connecting box (5) and is clamped with the clamping groove (4).

2. The mechanical assembly trolley according to claim 1, characterized in that the connection box (5) is provided with a through hole (501) for the extension and retraction of the fixture block (6); the connecting box (5) is internally provided with a push-out mechanism for pushing the clamping block (6) to extend out of the connecting box (5) and a retraction mechanism for pulling the clamping block (6) to retract into the connecting box (5).

3. The mechanical assembly trolley as claimed in claim 2, wherein the push-out mechanism comprises a screw rod (8) rotatably connected with the connecting box (5), a slide block (9) in threaded connection with the screw rod (8), a conical cylinder (10) which is installed on the slide block (9) and has an inclined surface abutting against the fixture block (6) and pushing the fixture block (6) to extend out of the through hole (501), and a driving mechanism for driving the screw rod (8) to rotate; the sliding block (9) is provided with a sliding rail block (11) which is connected with the inner wall of the connecting box (5) through a sliding rail.

4. A machinery assembly trolley according to claim 3, characterised in that the driving mechanism comprises a gear wheel (12) mounted on the screw (8) and a turning rod (13) having one end engaging the gear wheel (12) and the other end protruding outside the connection box (5).

5. A machinery assembly trolley according to claim 4, characterised in that the end of the turning rod (13) that protrudes outside the connection box (5) is provided with a hand wheel (14).

6. The mechanical assembly trolley according to claim 2, wherein the retraction mechanism comprises an elastic member (15) for pulling the latch (6), and the deformation direction of the elastic member (15) is consistent with the extending or retracting direction of the latch (6).

7. The mechanical assembly trolley according to claim 1, wherein a connecting plate (16) is arranged between the connecting box (5) and the caster wheel (7), the connecting box (5) is fixedly connected with the connecting plate (16), and the caster wheel (7) is a universal caster wheel.

8. The mechanical assembly trolley according to claim 1, wherein the portion of the clamping block (6) clamped with the clamping groove (4) is conical.

9. A machine assembly trolley according to any of claims 1-8, characterized in that the push plate (1) is provided with a handle (17) on its side.

10. A machinery assembly trolley according to any one of claims 1 to 8, characterized in that the push plate (1) is provided with a stop (18) at the end face remote from the mounting groove (3), and the stop (18) is remote from the connection of the handrail (101) and the push plate (1).