CN212893699U

CN212893699U - Manual lifting platform

Info

Publication number: CN212893699U
Application number: CN202021594236.XU
Authority: CN
Inventors: 卞军; 黄小龙; 李向阳
Original assignee: Zhilun Automation Technology Shanghai Co ltd
Current assignee: Zhilun Automation Technology Shanghai Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-04-06
Anticipated expiration: 2030-08-04

Abstract

The utility model provides a manual lift platform, include: the device comprises a ratchet wheel crank handle, a product placing panel, a platform upper frame, a platform lifting arm and a platform lower frame; the upper frame and the lower frame of the platform are directly connected with the lifting arm of the platform for matching use; the platform lifting arm includes: the lifting device comprises a first lifting arm and a second lifting arm, wherein the first lifting arm and the second lifting arm are arranged in a scissor-type manner; one end of the first lifting arm is fixedly connected to the upper platform frame, and the other end of the first lifting arm is connected to the lower platform frame in a sliding manner; one end of the second lifting arm is connected to the upper platform frame in a sliding manner, and the other end of the second lifting arm is fixedly connected to the lower platform frame; the ratchet hand crank drives the gear module mechanism to rotate, and the platform lifting arm can enable the product placing panel to ascend or descend. The utility model discloses an adopt the technique of lift arm lug connection platform upper frame and platform underframe, adopt the mode of two end connection, the connection hole site on both sides is parallel and concentric, and it is good to reach the synchronism, and is more level and smooth, stable at the lift in-process.

Description

Manual lifting platform

Technical Field

The utility model relates to a lift platform technical field specifically, relates to a manual lift platform.

Background

The lifting platform brings great convenience to the application of people in production and life, is mainly used for factory maintenance, fetching and the like, has a complex structure, and is limited in use.

Through search, patent document CN108466973A discloses a support, in which a lifting table is provided on the support, the lifting table and the support are in up-and-down sliding fit, and the lifting table is connected with a movable support mechanism. The lower parts of a group of opposite side walls of the lifting platform are provided with lock holes, and the corresponding supports outside the lock holes are provided with locking mechanisms. The locking mechanism comprises an upper lock and a lower lock. The upper lock and the lower lock respectively comprise a connecting block, a supporting sleeve is arranged on the connecting block, a lock tongue is arranged in the supporting sleeve, and a horizontal spring is arranged between one end of the lock tongue and the connecting block. Its characteristics all have the promotion boss on the elevating platform lateral wall that the last border of lockhole corresponds. The prior art has the defects of large equipment, inconvenient movement, complex structure and complex operation.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a manual lift platform.

According to the utility model provides a pair of manual lift platform, include: the device comprises a ratchet wheel crank handle, a product placing panel, a platform upper frame, a platform lifting arm and a platform lower frame;

wherein, the upper frame and the lower frame of the platform are directly connected with the lifting arm of the platform for matching use; the platform lifting arm includes: the lifting device comprises a first lifting arm and a second lifting arm, wherein the first lifting arm and the second lifting arm are arranged in a scissor-type manner; one end of the first lifting arm is fixedly connected to the upper platform frame, and the other end of the first lifting arm is connected to the lower platform frame in a sliding manner; one end of the second lifting arm is connected to the upper platform frame in a sliding manner, and the other end of the second lifting arm is fixedly connected to the lower platform frame; the frame includes gear module mechanism on the platform, and the hand handle of ratchet drives gear module mechanism and rotates, and platform lifing arm can make the product place the panel and rise or descend.

Preferably, the frame still wraps lead screw subassembly and universal joint on the platform, and the gear module mechanism passes through the universal joint and connects the lead screw subassembly.

Preferably, still include the upper frame welded frame, adopt fretwork type design, gear module mechanism, lead screw subassembly and upper frame welded frame fastening connection.

Preferably, still include lifting module, lifting module and lead screw subassembly cooperation are connected, and lifting module can slide on the lead screw subassembly, can drive the platform lifing arm simultaneously and slide.

Preferably, the lifting device further comprises a limiting adjusting nut, the limiting adjusting nut is respectively assembled on the platform upper frame and the platform lower frame, and the limiting adjusting nut can limit and prevent the platform lifting arm from rising.

Preferably, the gear module mechanism comprises a labor-saving transmission rod and a quick transmission rod, a small gear is assembled on the labor-saving transmission rod, a large gear is assembled on the quick transmission rod, and the large gear and the small gear are meshed to drive the product placing panel to ascend or descend.

Preferably, when the product placement panel is at the lowest point, the ratchet hand crank can be rotated to raise the product placement panel to the desired position.

Preferably, the platform lifting arms are arranged in a pairwise crossing manner.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through adopting the technique of lift arm lug connection platform upper frame and platform underframe, adopt the mode of two end connections, the connection hole site on both sides is parallel and concentric, reaches the synchronism good, and is more level and smooth, stable at the lift in-process.

2. Through whole fretwork type welding jig, solved manual lift platform's whole weight problem, light laborsaving more when making lift platform use and remove.

3. Through adopting gear module mechanism, solved lift platform because of factors such as product weight, the problem that wastes time and energy when going up and down at the lift in-process, let lift platform labour saving and time saving more, convenient to use is swift.

4. Through using the universal joint to connect, the decentraction problem when having solved gear module mechanism and lead screw subassembly and being connected has increased stability and reliability when the platform goes up and down.

5. Through adopting the ratchet hand crank, solved lift platform when initial rising, the initial force too big and place the panel ground too closely lead to rotating the problem of the hand crank hard and can not rotate the whole circle, make the platform can be more swift laborsaving when initial rising.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a first overall structure of a manual lifting platform;

FIG. 2 is a second overall structural schematic view of the manual lifting platform;

FIG. 3 is a schematic view of the upper platform frame of the manual lift platform;

fig. 4 is a schematic diagram of a ratchet crank and gear module mechanism.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the utility model provides a manual lifting platform, including ratchet crank 2, product placement panel 3, platform upper frame 4, platform lifting arm 5, platform lower frame 6, lifting slide block assembly 7, gear module mechanism 8, universal joint 9, spacing adjusting nut 10, lead screw assembly 11, upper frame welding frame 12, laborsaving transfer line 13, and fast transfer line 14; the drive link assembly includes a labor saving drive link 13 and a quick drive link 14.

The upper platform frame 4 is connected and matched with the lower platform frame 6 through the platform lifting arm 5, the product placing panel 3 is fastened on the upper platform frame 4 through self-tapping screws, and the gear module mechanism 8 is connected and matched with the screw rod assembly 11 through a universal joint 9; the ratchet hand crank 2 drives the gear module mechanism 8 to rotate, so that the platform lifting arm 5 is in a rising or falling state. The gear module mechanism 8, the screw rod assembly 11 and the upper frame welding frame 12 are connected in a fastening mode, and when the ratchet wheel hand crank 2 is rotated, the transmission rod assembly can drive the screw rod assembly 11 to rotate together.

Universal joint 9 assembles in 4 intermediate positions of frame on the platform, lead screw subassembly 11 and gear module mechanism 8 are connected respectively at both ends, because frame 4 belongs to the welding piece on the platform, the welded precision can not be too high, but platform 1's lift is stable needs lead screw subassembly 11 and drive rod subassembly's concentricity very high, so increase the universal joint between two subassemblies, avoid because other external force factors, lead to platform 1 to go up and down unstably, increase universal joint 9, it is more stable at the during operation that makes lift platform 1.

The lifting module 7 is respectively connected with the platform upper frame 4 and the platform lifting arm 5 for matching, so when the ratchet hand crank 2 is rotated, the lifting module 7 can slide back and forth on the screw rod assembly 11 according to the rotating direction of the ratchet hand crank 2, and simultaneously drives the platform lifting arm 5 to slide back and forth, so that the lifting platform 1 can realize the lifting function.

The limit adjusting nuts 10 are respectively assembled on the platform upper frame 4 and the platform lower frame 6, and are used for adjusting the limit nuts 10 to provide a blocking hard limit for the platform lifting arm 5 when the lifting platform 1 is lifted to a required position, so that the lifting platform cannot be lifted any more.

The labor-saving transmission rod 13 and the quick transmission rod 14 both belong to the gear module mechanism 8, a small gear is assembled on the labor-saving transmission rod 13, a large gear is assembled on the quick transmission rod 14, and the large gear is meshed with the small gear, so that the labor-saving and quick effects are achieved. If the quick transmission rod 14 is directly matched with the universal joint 9, when the ratchet hand crank 2 is connected with the quick transmission rod 14, the quick transmission rod 14 directly drives the screw rod assembly 11 to be quickly lifted through the universal joint 9, but the labor is not saved; if the labor-saving transmission rod 13 is in meshing transmission with the bull gear on the rapid transmission rod 14 through the pinion, when the ratchet hand crank 2 is matched with the labor-saving transmission rod 13, the bull gear is driven through the pinion to realize the lifting of the platform, and the lifting speed is slow although labor-saving. When the lifting platform 1 is used, the rapid transmission rod 14 enables workers to quickly lift the platform when lifting heavier objects; the labor-saving transmission rod 13 can be used for enabling the working personnel to lift the platform 1 more easily. Therefore, the labor-saving transmission rod 13 and the quick transmission rod 14 work together to achieve the technical effects of labor saving and quick lifting.

The utility model provides a pair of manual lift platform's assembly method, including following step:

step S0: assembling the platform lifting arm 5, the platform upper frame 4 and the platform lower frame 6 to complete the assembly, and building a frame of the lifting platform;

step S1: assembling the gear module mechanism 8, and respectively assembling the labor-saving transmission rod 13 and the quick transmission rod 14 with the pinion and the bull gear to complete the assembly of the gear module mechanism 8;

step S2: the gear module mechanism 8 is assembled at the front end of the upper frame 4 of the platform through a fastener, the screw rod assembly 11 is assembled at the rear end of the upper frame 4 of the platform, two ends of the universal joint 9 are respectively assembled and fixed corresponding to the gear module mechanism 8 and the screw rod assembly 11, the lifting module 7 is assembled on the screw rod assembly 11, and the upper frame 4 of the platform is assembled;

step S3: after the structure is assembled, the lifting module 7 is displaced to a specified position, and then the lifting module 7 is matched and fixed with the platform lifting arm 5 through a fastener;

step S4: respectively assembling the adjusting limit nuts 10 on the platform upper frame 4 and the platform lower frame 6, and then fixing the product placing panel 3 with the platform upper frame 4 through self-tapping screws to complete assembly;

step S5: the whole frame of the lifting platform is assembled, and the ratchet wheel hand crank 2 is matched with the labor-saving transmission rod 13 or the quick transmission rod 14 for use.

After the installation cooperation of lift platform 1 is accomplished, frame 4 passes through platform lift arm 5 and the cooperation of platform underframe 6 on the platform, and panel 3 and the fixed cooperation of frame 4 on the platform are placed to the product, and finally, assembly personnel pass through rotatory ratchet crank 2, and whether the lift function of inspection lift platform 1 reaches the requirement, above operating procedure is all in order to accomplish the back, the start work. The staff rotates the ratchet crank, places the product and lowers the panel to required position, then places the product on the platform panel, and the staff rotates the ratchet crank once more, places the product and rises the panel to required position.

The utility model discloses aVariation exampleFor further explanation.

When the lifting platform works, different labor-saving transmission rods 13 and different quick transmission rods 14 can be selected according to different working personnel and required results when the ratchet wheel hand crank works.

The working principle is as follows:

when lift platform 1 was located the initial position that rises, the platform height was not enough to make the crank rotatory round, because ratchet crank 2 has the gyration function, ratchet crank 2 can change half a circle earlier at this time, then the gyration, repeat this action, it rotates the round until lift platform 1 leaves the high enough crank on ground, then rise or descend with whole circle of rotation mode, when ratchet crank 2 used with laborsaving transfer line 13 cooperation, clockwise rotation makes the product place the panel 3 and rises, counter-clockwise rotation makes the product place the panel 3 and descends, when ratchet crank 2 used with quick transfer line 14 cooperation, counter-clockwise rotation makes the product place the panel 3 and rises, clockwise rotation makes the product place the panel 3 and descends.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A manual lift platform, comprising: the device comprises a ratchet wheel crank handle (2), a product placing panel (3), a platform upper frame (4), a platform lifting arm (5) and a platform lower frame (6);

the upper platform frame (4) and the lower platform frame (6) are directly connected with the lifting arm (5) of the platform for matching use;

the platform lifting arm (5) comprises: the lifting device comprises a first lifting arm and a second lifting arm, wherein the first lifting arm and the second lifting arm are arranged in a scissor-type manner;

one end of the first lifting arm is fixedly connected to the upper platform frame (4), and the other end of the first lifting arm is connected to the lower platform frame (6) in a sliding manner; one end of the second lifting arm is connected to the upper platform frame (4) in a sliding manner, and the other end of the second lifting arm is fixedly connected to the lower platform frame (6);

frame (4) include gear module mechanism (8) on the platform, ratchet hand crank (2) drive gear module mechanism (8) and rotate, platform lifing arm (5) can make the product place panel (3) and rise or descend.

2. The manual lifting platform of claim 1, wherein said platform upper frame (4) further comprises a screw assembly (11) and a universal joint (9), and said gear module mechanism (8) is connected to said screw assembly (11) through said universal joint (9).

3. The manual lifting platform according to claim 2, further comprising an upper frame welding frame (12), wherein the gear module mechanism (8) and the screw rod assembly (11) are fixedly connected with the upper frame welding frame (12) by adopting a hollow design.

4. The manual lifting platform according to claim 2, further comprising a lifting module (7), wherein the lifting module (7) is cooperatively connected with the screw rod assembly (11), and the lifting module (7) can slide on the screw rod assembly (11) and can drive the platform lifting arm (5) to slide.

5. The manual lifting platform of claim 1, further comprising limit adjusting nuts (10), wherein the limit adjusting nuts (10) are respectively assembled on the platform upper frame (4) and the platform lower frame (6), and the limit adjusting nuts (10) can limit and block the platform lifting arm (5) from ascending.

6. The manual lifting platform according to claim 1, wherein the gear module mechanism (8) comprises a labor-saving transmission rod (13) and a quick transmission rod (14), a small gear is assembled on the labor-saving transmission rod (13), a large gear is assembled on the quick transmission rod (14), and the large gear and the small gear are meshed to drive the product placing panel (3) to ascend or descend.

7. Manual lifting platform according to claim 1, characterised in that when the product placement panel (3) is at the lowest point, the ratchet hand crank (2) can be turned to raise the product placement panel (3) to the desired position.

8. Manual lifting platform according to claim 1, characterised in that said product placement panel (3) is arranged above the platform upper frame (4).