Foldable and movable elevator

Abstract

The utility model provides a foldable and movable elevator which comprises a vertically arranged stand column component and a fork frame body component transversely arranged on the stand column component, and the fork frame body component comprises a cross beam connected with the stand column component and a folding frame connected with the cross beam through a rotating assembly. The rotating assembly comprises a hinge shaft and a ratchet wheel assembly. The ratchet wheel assembly comprises a ratchet wheel and a pawl, wherein the ratchet wheel and the folding frame coaxially rotate, and the pawl is matched with the ratchet wheel to enable the ratchet wheel to keep rotating in one direction. The hinge shaft longitudinally penetrates through the folding frame and the connecting frame to enable the folding frame and the connecting frame to be rotationally connected; when the device is used, the folding frame rotates upwards around the axis of the hinge shaft relative to the cross beam, the ratchet wheel and the pawl are matched to enable the folding frame to rotate in one direction and avoid rotation due to self weight, rotation of the folding frame can effectively reduce the width of the elevator, occupied space is greatly reduced, and therefore storage and transportation are convenient, structural improvement is simple, assembly is easy, and cost is low. The application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of elevator, specifically a foldable mobile elevator. BACKGROUND

[0002] The elevator is a device for lifting the hopper to the designated position of the equipment, which usually comprises a support, a hydraulic lifting device and a lifting seat. The hydraulic lifting device is arranged at the bottom of the support, and the lifting seat moves vertically in the support and is lifted under the drive of the hydraulic lifting device. A fork frame is arranged in front of the lifting seat to fork the hopper. For example, the applicant previously invented a folding fork frame elevator (publication number CN2159335U), which is arranged at the bottom of the support by the hydraulic lifting device, and the lifting seat moves vertically in the support and is lifted under the drive of the hydraulic lifting device.

[0003] However, the elevator is usually bulky, which is not convenient to pass through relatively narrow space when moving or transporting. Therefore, the applicant designed an elevator (Chinese utility model patent, CN202321460055.1), which improved the traditional hydraulic lifting device into an electric push rod lifting device driven by a motor, fundamentally solving the problem of hydraulic lifting oil leakage, and arranged the support of the elevator into a nested structure of upper and lower columns, so that the height of the elevator can be adjusted as needed, and it can be set to a retracted state when needed to save space.

[0004] On this basis, the applicant further designs the storage and extension structure of the elevator, so that it can be folded in width to pass through relatively narrow space. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the shortcomings and deficiencies of the prior art, and provides a foldable mobile elevator. The technical scheme adopted by the utility model is as follows:

[0006] A foldable mobile elevator, comprising a vertically arranged column component and a horizontally arranged fork frame body component on the column component, the fork frame body component is connected with a fork rod at both ends, the fork frame body component comprises a crossbeam connected with the column component and a horizontally arranged folding frame connected with the crossbeam through a rotating assembly, and the fork rod is longitudinally arranged relative to the folding frame; the rotating assembly comprises a hinge component and a ratchet assembly, the hinge component comprises a hinge shaft, the ratchet assembly comprises a ratchet coaxially rotating with the folding frame and a pawl cooperating with the ratchet to keep the ratchet rotating in one direction; the crossbeam is rotationally connected with the folding frame through a connecting frame, and the hinge shaft longitudinally penetrates the folding frame and the connecting frame to rotationally connect them.

[0007] Specifically, the outer end of the connecting frame is provided with a positioning slot for the folding frame to extend into, so that the folding frame is at least partially coincident with the outer end of the connecting frame in the transverse direction, and the hinge shaft longitudinally penetrates the positioning slot.

[0008] As a preferred, the ratchet assembly further comprises a transmission box arranged on the connecting frame, the hinge shaft extends into the transmission box and is connected with the ratchet, the pawl is arranged in the transmission box and is connected with the control knob in linkage, and the control knob extends out of the transmission box.

[0009] As a preferred, the folding frame is provided with a first pin hole, the connecting frame is provided with a plurality of second pin holes, the hinge shaft is taken as the rotation center, the plurality of second pin holes are distributed on the rotation track of the first pin hole, the first pin hole and any second pin hole are positioned and matched through a positioning pin, the lower surface of the folding frame extends to a limiting baffle at one end of the connecting frame, the limiting baffle is abutted with the lower surface of the connecting frame when the included angle of the connecting frame and the folding frame is a straight angle, the positioning pin is pulled out when passing through a narrow space, the folding frame on the fork frame body part is lifted, the positioning pin is inserted again (fixed position is added to prevent the folding frame from being opened), the space is quickly passed through, the positioning pin is pulled out after passing through, the folding frame on the fork frame body part is put down, the limiting baffle is limited, the positioning pin is inserted again, and the lifting machine can be normally used later.

[0010] As a preferred, the base of the lifting machine is provided with a roller, and the pawl and the ratchet cooperate to enable the folding frame to only rotate upwards relative to the cross beam.

[0011] As a preferred, the column part comprises an upper column and a lower column arranged in a nested manner, and the column part has a retracted state in which the upper column and the lower column are nested and coincided, and an extended state in which the upper column and the lower column are away from each other, and in the extended state, the lower end of the upper column is connected with the upper end of the lower column.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. Foldability: the lifting machine can greatly reduce the volume in the non-use state, thereby facilitating storage and transportation.

[0014] 2. Durability and stability: the structure of the folding fork frame all adopts mature mechanical parts, the size specification and pressure bearing capacity of which can be verified to ensure that the folding fork frame remains stable when bearing heavy objects, and the limiting baffle is used to further improve the stability.

[0015] 3. Structural flexibility: the structure is flexible in use, so that the folding fork frame can adapt to various scenes and purposes.

[0016] 4. Practical diversity: the distance between the two fork rods can also be adjusted during work to achieve the diversity of different fork rod spacing docking objects. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, which still belong to the scope of the present application.

[0018] Figure 1 It is the main structure front view of example 1 (remove some shielding and interference lines);

[0019] Figure 2 It is the schematic diagram of example 1 in use state;

[0020] Figure 3 It is the plan view of fork body component in example 1 (remove some shielding and interference lines);

[0021] Figure 4 It is the schematic diagram of folding frame area structure;

[0022] In the figure, 1 is a stand component, 2 is a fork body component, 21 is a crossbeam, 22 is a connecting frame, 3 is a hinge component, 31 is a hinge shaft, 4 is a folding frame, 5 is a positioning pin, 6 is a limiting baffle, 7 is a ratchet assembly, 71 is a pawl, 72 is a transmission box, and 8 is a fork rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the present application in combination with embodiments and drawings.

[0024] It should be noted that all the expressions of "first" and "second" in the embodiments of the present application are used to distinguish two same name but different entities or different parameters. It can be seen that "first" and "second" are only for the convenience of description, and should not be understood as a limitation of the embodiments of the present application. The subsequent embodiments will not be described one by one.

[0025] The directions and positions mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side" and the like, are only the directions or positions of the drawings. Therefore, the directions and positions used are used to illustrate and understand the present application, and are not a limitation on the protection scope of the present application.

[0026] Example 1

[0027] As shown in Figures 1-4 The foldable and movable lifting machine comprises a vertical column component 1, a fork body component 2 horizontally arranged on the column component 1, a fork rod 8 connected to both ends of the fork body component 2, a horizontal beam 21 connected to the column component 1, a folding frame 4 horizontally arranged and connected to the horizontal beam 21 through a rotating assembly, and the fork rod 8 is longitudinally arranged relative to the folding frame 4. The rotating assembly comprises a hinge component 3 and a ratchet assembly 7. The hinge component 3 comprises a hinge shaft 31, and the ratchet assembly 7 comprises a ratchet coaxially rotating with the folding frame 4 and a pawl 71 cooperating with the ratchet to keep the ratchet rotating in one direction. The horizontal beam 21 is rotationally connected to the folding frame 4 through a connecting frame 22, and the hinge shaft 31 longitudinally penetrates the folding frame 4 and the connecting frame 22 to rotationally connect them.

[0028] The outer end of the connecting frame 22 is provided with a positioning hollow slot for the folding frame 4 to extend into, so that the folding frame 4 is at least partially coincident with the outer end of the connecting frame 22 in the horizontal direction, and the hinge shaft 31 longitudinally penetrates the positioning hollow slot.

[0029] The ratchet assembly further comprises a transmission box 72 arranged on the connecting frame 22, the hinge shaft 31 extends into the transmission box 72 and is connected to the ratchet, and the pawl 71 is arranged in the transmission box 72 and is connected to a control knob, and the control knob extends out of the transmission box 72. In this embodiment, the hinge shaft 31 is keyed to the folding frame 4, so that the folding frame 4 rotates coaxially with the hinge shaft 31, and a handle or driving mechanism is arranged on the transmission box 72 to drive the hinge shaft to rotate and in turn drive the folding frame 4 to rotate upward.

[0030] A first pin hole is arranged on the folding frame 4, a plurality of second pin holes are arranged on the connecting frame 22, the hinge shaft 31 is taken as the rotation center, the plurality of second pin holes are distributed on the rotation track of the first pin hole, and the first pin hole and any second pin hole are positioned and matched through a positioning pin 5.

[0031] The lower surface of the folding frame 4 extends a limiting baffle 6 towards one end of the connecting frame 22, when the included angle of the connecting frame 22 and the folding frame 4 is a straight angle, the limiting baffle 6 abuts against the lower surface of the connecting frame 22 to avoid the connecting frame 22 from continuously rotating downward.

[0032] When passing through a narrow space, stop the column component, pull out the positioning pin, lift up the folding frame on the fork body component, and then insert the positioning pin again (to fix the position and prevent the folding frame from opening), and quickly pass through the interference space; after passing through, pull out the positioning pin, put down the folding frame folded on the fork body component, limit through the limiting baffle, and then insert the positioning pin again, and then the lifting machine can be normally used.

[0033] The base of the lifting machine is provided with a roller, and the pawl 71 cooperates with the ratchet wheel to enable the folding frame 4 to rotate upward only relative to the cross beam 21.

[0034] Embodiment 2

[0035] On the basis of embodiment 1, the column member 1 comprises an upper column and a lower column arranged in a nested manner, and the column member 1 has a contracted state in which the upper and lower columns are nested and overlapped, and an expanded state in which the upper and lower columns are away from each other, and in the expanded state, the lower end of the upper column and the upper end of the lower column are connected, so that the lifting machine has stronger storability.

[0036] The above only discloses the preferred embodiments of the utility model, of course cannot with this to limit the utility model right scope, therefore the equivalent change made by the utility model claim still belongs to the range covered by the utility model.

Claims

1. A foldable and movable hoist, comprising a vertically arranged column component (1), a fork frame component (2) arranged transversely on the column component (1), wherein both ends of the fork frame component (2) are connected to fork rods (8), characterized in that: The fork frame body part (2) includes a crossbeam (21) connected to the column part (1) and a folding frame (4) connected to the crossbeam (21) via a rotating assembly, and the fork rod (8) is longitudinally arranged relative to the folding frame (4); the rotating assembly includes a hinge part (3) and a ratchet assembly (7), the hinge part (3) includes a hinge shaft (31), and the ratchet assembly (7) includes a ratchet that rotates coaxially with the folding frame (4) and a pawl (71) that cooperates with the ratchet to keep the ratchet rotating in one direction; the crossbeam (21) is rotatably connected to the folding frame (4) through the connecting frame (22), and the hinge shaft (31) longitudinally penetrates the folding frame (4) and the connecting frame (22) to connect the two in rotation.

2. A foldable and movable hoist according to claim 1, characterized in that: The outer end of the connecting frame (22) is provided with a positioning slot for the folding frame (4) to extend into, so that the folding frame (4) at least partially overlaps with the outer end of the connecting frame (22) in the transverse direction, and the hinge shaft (31) longitudinally passes through the positioning slot.

3. The foldable and movable elevator according to claim 1, characterized in that: The ratchet assembly further comprises a transmission box (72) arranged on the connecting frame (22), the hinge shaft (31) extends into the transmission box (72) and is connected to the ratchet, the pawl (71) is arranged in the transmission box (72) and the pawl (71) is linked to the control knob, and the control knob extends out of the transmission box (72).

4. The foldable and movable elevator according to claim 1, characterized in that: The folding frame (4) is provided with a first pin hole, and the connecting frame (22) is provided with a plurality of second pin holes. The axis of the hinge shaft (31) is used as the rotation center, and the plurality of second pin holes are distributed on the rotation track of the first pin hole. The first pin hole and any second pin hole are positioned and matched by a positioning pin (5).

5. The foldable and movable elevator according to claim 1, characterized in that: A limit baffle (6) extends from the lower surface of the folding frame (4) toward one end of the connecting frame (22); when the angle between the connecting frame (22) and the folding frame (4) is a flat angle, the limit baffle (6) abuts against the lower surface of the connecting frame (22).

6. The foldable and movable elevator according to claim 1, characterized in that: A roller is provided on the base of the hoist, and the pawl (71) cooperates with the ratchet to enable the folding frame (4) to rotate only upward relative to the crossbeam (21).

7. A foldable and movable hoist according to any one of claims 1 to 6, characterized in that: The column component (1) comprises an upper column and a lower column which are nested together, and the column component (1) has a contracted state in which the upper and lower columns are nested and overlapped, and an extended state in which the upper and lower columns are separated from each other. In the extended state, the lower end of the upper column is connected to the upper end of the lower column.

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