Lifting device

Abstract

The utility model belongs to the technical field of lifting equipment, and particularly discloses a lifting device which comprises a fixing frame, a first-level lifting mechanism, a second-level lifting mechanism, a first-level lifting mechanism and a second-level lifting mechanism. The movable frame is movably arranged in the fixed frame in the vertical direction of the movable frame, the movable frame vertically moves through a first-stage lifting mechanism, and a basket body is arranged in the movable frame; the second-stage lifting mechanism is arranged between the fixed frame and the basket body, and when the movable frame moves, the basket body is lifted through the second-stage lifting mechanism; and the output end of the driver is connected with the primary lifting mechanism. According to the utility model, the movable fixing frame is arranged, so that the lifting basket is convenient to move, meanwhile, the first-stage lifting mechanism and the second-stage lifting mechanism are arranged, so that the lifting height of the basket body can be greatly increased, the lifting height of the basket body is ensured in a limited implementation environment, and the high-altitude operation in a large tank body can be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a lifting device. Background Art

[0002] At present, the oil tanks in oil fields and chemical plants, the sedimentation tanks, buffer tanks, sewage tanks in sewage treatment plants, and water injection tanks in water injection stations are basically steel tanks. Due to the complex composition of the liquid contained, which often contains corrosive substances such as dissolved oxygen, anaerobic bacteria, hydrogen sulfide, and carbon dioxide, the metal tanks have a strong corrosive effect. As the service life of the tank increases, the tank will be corroded and perforated locally, the tank top will sag, and the tank body will become unstable and deformed. If maintenance is not timely, it will cause the tank top to collapse or tank overturning accidents.

[0003] For high-altitude operations in large tanks, a lifting device is usually used to lift a basket and transport the items in the basket to a high altitude to facilitate the operators to work. The lifting device is usually directly driven by a winch. Due to installation restrictions, the lifting height of the lifting device in a large tank is limited, which will cause inconvenience to the high-altitude operations on site. In view of this, the applicant proposed a lifting device. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a lifting device for solving the problem of limited lifting height of the lifting device in the prior art.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a lifting device, comprising:

[0006] A fixed frame, wherein the fixed frame is provided with a primary lifting mechanism;

[0007] A mobile frame, wherein the mobile frame is movably arranged in the fixed frame along its vertical direction, the mobile frame is vertically moved by a primary lifting mechanism, and a basket is arranged in the mobile frame;

[0008] A secondary lifting mechanism, the secondary lifting mechanism is arranged between the fixed frame and the basket body, wherein the basket body is lifted by the secondary lifting mechanism when the movable frame moves;

[0009] A driver, wherein an output end of the driver is connected to the first-level lifting mechanism.

[0010] Optionally, a support seat is provided on the fixed frame, and the first-level lifting mechanism includes a first connecting member, a first guide wheel, a second guide wheel and a lifting wheel, the first guide wheel is arranged on the fixed frame, the second guide wheel is arranged on the support seat, and the lifting wheel is arranged on the movable frame, one end of the first connecting member is connected to the driver, and the free end of the first connecting member is sequentially wound around the first guide wheel, the second guide wheel and the lifting wheel and connected to the support seat.

[0011] Optionally, the secondary lifting mechanism includes a fixing member, a second connecting member and a third guide wheel, the fixing member is fixedly connected to the basket body, the third guide wheel is arranged on the movable frame, one end of the second connecting member is fixedly connected to the support seat, and the free end of the second connecting member is wound around the third guide wheel and connected to the fixing member.

[0012] Optionally, a plurality of first roller groups are symmetrically provided on the basket body, and the first roller groups are rollingly connected to the moving frame.

[0013] Optionally, a plurality of second roller groups are provided on the movable frame, and the second roller groups are rollingly connected to the fixed frame.

[0014] Optionally, the driver is a lifting winch having two output ends, the number of the first-level lifting mechanisms is two, which are symmetrically arranged on the fixed frame, and the two output ends of the lifting winch are respectively connected to the first connecting member in the first-level lifting mechanism.

[0015] Optionally, the number of the secondary lifting mechanisms is four, and they are symmetrically arranged between the support seat and the basket body with the center of the basket body as the symmetry point.

[0016] Optionally, a supporting assembly is further included, wherein the supporting assembly is arranged on the fixing frame and is used to fix and support the fixing frame.

[0017] Optionally, the support assembly includes a pull rod, a support leg and a seat plate, one end of the support leg is hinged to the fixed frame, the seat plate is hinged to the free end of the support leg, one end of the pull rod is hinged to the fixed frame, and the free end of the pull rod is hinged to the support leg.

[0018] Optionally, the mobile frame is provided with a plurality of fall arresters for preventing the basket from falling.

[0019] As described above, the lifting device proposed by the utility model has the following beneficial effects:

[0020] (1) In the present application, a primary lifting mechanism is provided, which can drive the mobile frame to be lifted through a driver, thereby realizing vertical movement, thereby driving the basket to move. While the mobile frame is moving, the secondary lifting mechanism operates synchronously, so that the basket moves vertically relative to the mobile frame. Therefore, the basket in the present application has a greater vertical movement distance and can move from the bottom of the mobile frame to the top of the mobile frame, thereby realizing the function of expanding the lifting height in a limited environment.

[0021] (2) In the present application, by setting up a fixed frame and a mobile frame, when the mobile frame moves through the primary lifting mechanism, the cooperation between the fixed frame and the mobile frame enables the mobile frame to move stably, and when the basket moves relative to the mobile frame, the mobile frame can provide stable lifting guarantee for the basket. Due to the dual support and fixing effect of the fixed frame and the mobile frame, the basket in the present application has higher stability during the movement relative to the mobile frame.

[0022] (3) In the present application, a power source is provided so that when the driver makes the primary lifting mechanism work, it drives the secondary lifting mechanism, thereby increasing the moving height of the basket body and adopting a linked mechanical driving method to save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a front view of an embodiment of the utility model;

[0024] Figure 2 Shown is a side view of an embodiment of the utility model;

[0025] Figure 3 Shown is a top view of an embodiment of the utility model;

[0026] Figure 4 Shown is a front view of a basket body in one embodiment of the utility model;

[0027] Figure 5 Shown is a schematic diagram of a first-level lifting mechanism in an embodiment of the utility model;

[0028] Figure 6 Shown is a schematic diagram of a support assembly in one embodiment of the present invention.

[0029] Description of reference numerals:

[0030] Fixed frame 1, universal wheel 101, mobile frame 2, second roller group 201, support seat 3, driver 4, first guide wheel 5, second guide wheel 6, lifting wheel 7, first connecting member 8, basket body 9, first roller group 901, third guide wheel 10, second connecting member 11, fixed member 12, pull rod 13, support leg 14, seat plate 15. DETAILED DESCRIPTION

[0031] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] It should be noted that the diagrams provided in the present embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the layout of the components may be more complicated. The structure, proportion, size, etc. shown in the diagrams attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0033] like Figure 1-Figure 6 As shown, the utility model provides a lifting device.

[0034] In an exemplary embodiment, the lifting device comprises:

[0035] A fixed frame 1, wherein the fixed frame 1 is provided with a first-level lifting mechanism;

[0036] A mobile frame 2, the mobile frame 2 is movably arranged in the fixed frame 1 along its vertical direction, the mobile frame 2 is vertically moved by a primary lifting mechanism, and a basket body 9 is arranged in the mobile frame 2;

[0037] A secondary lifting mechanism, which is arranged between the fixed frame 1 and the basket 9, wherein the basket 9 is lifted by the secondary lifting mechanism when the movable frame 2 moves;

[0038] Driver 4, the output end of driver 4 is connected to the primary lifting mechanism.

[0039] In this embodiment, by setting up a first-level lifting mechanism, the driver 4 can drive the mobile frame 2 to be lifted, realize the movement in the vertical direction, thereby driving the basket body 9 to move, and while the mobile frame 2 moves, the second-level lifting mechanism operates synchronously, so that the basket body 9 moves vertically relative to the mobile frame 2. Therefore, the basket body 9 in the present application has a larger moving distance in the vertical direction, and can move from the bottom of the mobile frame 2 to the top of the mobile frame 2, thereby realizing the function of expanding the lifting height in a limited environment.

[0040] In the present application, by setting up a fixed frame 1 and a mobile frame 2, when the mobile frame 2 is moved by the primary lifting mechanism, its cooperation with the fixed frame 1 enables the mobile frame 2 to move stably, and when the basket body 9 moves relative to the mobile frame 2, the mobile frame 2 can provide stable lifting and lowering guarantees for the basket body 9. Due to the dual support and fixing effects of the fixed frame 1 and the mobile frame 2, the basket body 9 in the present application has higher stability during the movement relative to the mobile frame 2.

[0041] In an exemplary embodiment, a support seat 3 is provided on the fixed frame 1, and the first-level lifting mechanism includes a first connecting member 8, a first guide wheel 5, a second guide wheel 6 and a lifting wheel 7. The first guide wheel 5 is arranged on the fixed frame 1, the second guide wheel 6 is arranged on the support seat 3, and the lifting wheel 7 is arranged on the movable frame 2. One end of the first connecting member 8 is connected to the driver 4, and the free end of the first connecting member 8 is sequentially wound around the first guide wheel 5, the second guide wheel 6 and the lifting wheel 7 to be connected to the support seat 3.

[0042] In this embodiment, by setting the first connecting member 8, since the first connecting member 8 is finally fixed on the support seat 3 through the first guide wheel 5, the second guide wheel 6 and the lifting wheel 7 in sequence, after the driver 4 drives the first connecting member 8 to retract, the first connecting member 8 pulls the lifting wheel 7 upwards through the first guide wheel 5 and the second guide wheel 6, and the lifting wheel 7 is fixed on the moving frame 2, so the first connecting member 8 finally lifts the moving frame 2. Conversely, the driver 4 drives in the reverse direction to release the first connecting member 8, and the moving frame 2 will realize the descending action until the inner bottom surface of the fixed frame 1 due to its own gravity.

[0043] Exemplarily, in this embodiment, the driver 4 is a lifting winch having two output ends. The number of first-stage lifting mechanisms is two, which are symmetrically arranged on the fixed frame 1. The two output ends of the lifting winch are respectively connected to the first connecting member 8 in the first-stage lifting mechanism.

[0044] Exemplarily, the first connecting member 8 in this embodiment is a steel wire rope. The strength of the first connecting member 8 is ensured by selecting a high-strength steel wire rope, and it is easy to install so that it can be wound around the first guide wheel 5, the second guide wheel 6 and the lifting wheel 7.

[0045] It is worth noting that, in this embodiment, a driver 4 with multiple output terminals can be directly connected to the moving frame 2 to directly lift the moving frame 2 . However, in order to ensure the stability of the moving frame 2 , the number of first connecting members 8 should be increased.

[0046] In an exemplary embodiment, the secondary lifting mechanism includes a fixing member 12, a second connecting member 11 and a third guide wheel 10. The fixing member 12 is fixedly connected in the basket body 9, the third guide wheel 10 is arranged on the movable frame 2, one end of the second connecting member 11 is fixedly connected to the support seat 3, and the free end of the second connecting member 11 is wound around the third guide wheel 10 and connected to the fixing member 12.

[0047] In the present embodiment, by setting up a secondary lifting mechanism, since the length of the second connecting member 11 is fixed, and one end of the second connecting member 11 is fixed on the support seat 3, and the support seat 3 is fixed on the fixed frame 1 and is stationary, when the mobile frame 2 is in the process of rising, the second connecting member 11 will drive the basket body 9 to rise relative to the mobile frame 2. The rising distance of the basket body 9 relative to the mobile frame 2 is determined by the length of the second connecting member 11 and the rising distance of the mobile frame 2. In the present embodiment, the uppermost end of the basket body 9 can be moved to be flush with the top end of the mobile frame 2.

[0048] Illustratively, in this embodiment, the fixing member 12 adopts a fixing buckle structure, which can be conveniently connected to the second connecting member 11. The second connecting member 11 can adopt a steel wire rope, and a locking buckle can be provided at the end of the steel wire rope to lock with the fixing buckle to fix the second connecting member 11 and the fixing member 12.

[0049] Exemplarily, in this embodiment, the number of the secondary lifting mechanisms is four, which are symmetrically arranged between the support seat 3 and the basket body 9 with the center of the basket body 9 as the symmetry point. Through the four symmetrically arranged secondary lifting mechanisms, a larger pulling force can be provided, while ensuring the stability of the basket body 9 during lifting.

[0050] It is worth noting that in this embodiment, by setting up a power source, when the mobile frame 2 is driven to rise by the primary lifting mechanism, the basket body 9 can be further lifted by the position change of the mobile frame 2 and the secondary lifting mechanism, thereby reducing the energy demand.

[0051] In an exemplary embodiment, a plurality of first roller groups 901 are symmetrically disposed on the basket body 9 , and the first roller groups 901 are rollingly connected to the moving frame 2 .

[0052] In this embodiment, the basket body 9 can slide on the movable frame 2 through the plurality of first roller groups 901 , thereby achieving the guiding and supporting functions for the basket body 9 .

[0053] Exemplarily, in this embodiment, the number of the first roller groups 901 is four, and they are symmetrically arranged on the basket body 9.

[0054] In an exemplary embodiment, a plurality of second roller groups 201 are disposed on the mobile frame 2 , and the second roller groups 201 are rollingly connected to the fixed frame 1 .

[0055] In this embodiment, the plurality of second roller groups 201 can realize the function of the movable frame 2 sliding on the fixed frame 1 , thereby achieving the guiding and supporting functions for the movable frame 2 .

[0056] Exemplarily, in this embodiment, the number of the second roller groups 201 is four, which are symmetrically arranged on the moving frame 2.

[0057] In an exemplary embodiment, the utility model further comprises a supporting assembly, which is disposed on the fixing frame 1 and is used to fix and support the fixing frame 1 .

[0058] In this embodiment, the support assembly is provided to position and support the fixing frame 1 to prevent the fixing frame 1 from shaking.

[0059] Exemplarily, in the present application, the number of the support components is four, which are symmetrically arranged on the fixing frame 1 to form a stable support structure.

[0060] Exemplarily, the support assembly includes a pull rod 13, a support leg 14 and a seat plate 15, one end of the support leg 14 is hinged to the fixed frame 1, the seat plate 15 is hinged to the free end of the support leg 14, one end of the pull rod 13 is hinged to the fixed frame 1, the free end of the pull rod 13 is hinged to the support leg 14, and the support leg 14 is positioned by the hinged seat plate 15. The pull rod 13 supports the support leg 14 to provide a more stable supporting force for the support leg 14.

[0061] It is worth noting that in this embodiment, four universal wheels 101 are further provided at the bottom of the fixing frame 1 , and the universal wheels 101 have a braking function to achieve the fixation of the fixing frame 1 .

[0062] In an exemplary embodiment, the mobile frame 2 is provided with a plurality of fall arresters for preventing the basket 9 from falling. The fall arresters are prior art and can prevent objects from falling due to connection failure.

[0063] In this embodiment, when the utility model is required to work, the hook of the anti-falling device is connected to the basket body 9 to realize the anti-falling function of the basket body 9.

[0064] In summary, the utility model provides a movable fixed frame 1 to facilitate the movement of the utility model. At the same time, the primary lifting mechanism and the secondary lifting mechanism are provided to greatly increase the lifting height of the basket body 9. In a limited implementation environment, the lifting height of the basket body 9 is guaranteed, so that high-altitude operations in large tanks can be carried out smoothly.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A lifting device, characterized in that: include: A fixed frame, wherein the fixed frame is provided with a primary lifting mechanism; A mobile frame, wherein the mobile frame is movably arranged in the fixed frame along its vertical direction, the mobile frame is vertically moved by a primary lifting mechanism, and a basket is arranged in the mobile frame; A secondary lifting mechanism, the secondary lifting mechanism is arranged between the fixed frame and the basket body, wherein the basket body is lifted by the secondary lifting mechanism when the movable frame moves; A driver, wherein an output end of the driver is connected to the first-level lifting mechanism.

2. A lifting device according to claim 1, characterized in that: A support seat is provided on the fixed frame, and the first-level lifting mechanism includes a first connecting member, a first guide wheel, a second guide wheel and a lifting wheel. The first guide wheel is arranged on the fixed frame, the second guide wheel is arranged on the support seat, and the lifting wheel is arranged on the movable frame. One end of the first connecting member is connected to the driver, and the free end of the first connecting member is sequentially wound around the first guide wheel, the second guide wheel and the lifting wheel and connected to the support seat.

3. A lifting device according to claim 2, characterized in that: The secondary lifting mechanism includes a fixing member, a second connecting member and a third guide wheel, the fixing member is fixedly connected to the basket body, the third guide wheel is arranged on the movable frame, one end of the second connecting member is fixedly connected to the support seat, and the free end of the second connecting member is wound around the third guide wheel and connected to the fixing member.

4. A lifting device according to claim 1, characterized in that: The basket body is symmetrically provided with a plurality of first roller groups, and the first roller groups are rollingly connected with the moving frame.

5. A lifting device according to claim 1, characterized in that: The movable frame is provided with a plurality of second roller groups, and the second roller groups are rollingly connected to the fixed frame.

6. A lifting device according to claim 2, characterized in that: The driver is a lifting winch having two output ends. The number of the first-level lifting mechanisms is two and they are symmetrically arranged on the fixing frame. The two output ends of the lifting winch are respectively connected to the first connecting member in the first-level lifting mechanism.

7. A lifting device according to claim 3, characterized in that: The number of the secondary lifting mechanisms is four, and they are symmetrically arranged between the support seat and the basket body with the center of the basket body as the symmetry point.

8. A lifting device according to claim 1, characterized in that: It also includes a supporting assembly, which is arranged on the fixing frame and is used to fix and support the fixing frame.

9. A lifting device according to claim 8, characterized in that: The support assembly includes a pull rod, a support leg and a seat plate, one end of the support leg is hinged to the fixed frame, the seat plate is hinged to the free end of the support leg, one end of the pull rod is hinged to the fixed frame, and the free end of the pull rod is hinged to the support leg.

10. A lifting device according to claim 1, characterized in that: The movable frame is provided with a plurality of fall arresters for preventing the basket from falling.

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