Movable hoisting device for maintenance team

Abstract

The invention relates to the technical field of station process pipeline equipment disassembly and assembly operation, in particular to a movable hoisting device for a maintenance team. The movable hoisting device for the maintenance team comprises a movable base, a folding type ground support, a supporting frame, a stand column and a hoisting arm, the folding type ground support is installed at the side end of the movable base and used for being folded at the side end of the movable base in a contracting mode or unfolded to the outer side of the movable base, and the supporting frame is installed on the side end of the movable base. The supporting frame is fixed to the upper end of the movable base, the stand column is vertically arranged, the lower end of the stand column is rotationally connected with the supporting frame, a rotation driving mechanism connected with the lower end of the stand column is arranged in the supporting frame, one end of the suspension arm is fixedly connected with the upper end of the stand column, and a hoisting piece is arranged at the other end of the suspension arm. The foldable ground support has the advantages that the structural design is reasonable, the device can be more stable on the ground by unfolding the foldable ground support during use, and the occupied area can be reduced by shrinking when the foldable ground support is not used.

Description

Technical Field

[0001] The invention relates to the technical field of disassembly and assembly operations of process pipeline equipment at a station, and in particular to a mobile hoisting device for a maintenance team. Background Art

[0002] When oil and gas stations encounter equipment failures and require dismantling and repair, or disassembling and installing flow meters, it is generally necessary to lift the valves offline for subsequent repairs. Since most of the pressure regulating equipment and flow meters at the stations are currently skid-mounted, and due to the design space and bottom height restrictions of the skid-mounted platform, the legs of conventional small lifting equipment cannot pass through the bottom of the skid to ensure the center of gravity balance during lifting. Using other external objects to maintain balance poses a greater safety hazard. Large lifting equipment cannot be carried flexibly, and may not be configured at the station, so its use is limited.

[0003] The patented technology with announcement number CN220950958U discloses a mobile multifunctional hydraulic lifting device, including a mobile chassis, a column, a hydraulic telescopic device, a beam and a ground auxiliary support structure. The column is vertically rotatably mounted on the upper end of the mobile chassis, one end of the beam is hinged to the upper end of the column, the hydraulic telescopic device is mounted on the column and connected to the beam, and is used to drive the beam to swing up and down around the hinge point. The other end of the beam is provided with a lifting piece, and the ground auxiliary support structure is mounted on the mobile chassis, which is used to assist in supporting the ground and make the mobile chassis stable. Although this technical solution can meet the maintenance and use needs of the station, there are inconveniences in both rotation and lifting during operation, especially the rotation is done manually, which is difficult. In addition, the ground auxiliary support device also occupies a large space and does not utilize a miniaturized design.

[0004] Based on this, it is necessary to develop a mobile lifting and hoisting device for maintenance teams to overcome the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a mobile hoisting device for a maintenance team, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A mobile lifting and hoisting device for a maintenance team comprises a mobile base, a foldable ground support, a support frame, a column and a boom. The foldable ground support is mounted on the side end of the mobile base and is used to be retracted and folded at the side end of the mobile base, or unfolded to the outside of the mobile base. The support frame is fixed to the upper end of the mobile base. The column is vertically arranged and its lower end is rotatably connected to the support frame. A rotating drive mechanism connected to the lower end of the column is provided in the support frame. One end of the boom is connected and fixed to the upper end of the column, and a lifting piece is provided at the other end of the boom.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the mobile base includes a cross beam and a longitudinal beam vertically connected to the same side of both ends of the cross beam, and walking wheels are respectively provided at both ends of the lower part of the longitudinal beam. The foldable ground support includes a first telescopic support rod, a second telescopic support rod, a third telescopic support rod and a fourth telescopic support rod. One ends of the first telescopic support rod and the second telescopic support rod are respectively hinged to one end of the two longitudinal beams on a side away from each other, and can be flipped and folded at the side end of the longitudinal beam, or swung outward and unfolded. One ends of the third telescopic support rod and the fourth telescopic support rod are respectively hinged to the two ends of the side of the cross beam away from the longitudinal beam. The third telescopic support rod and the fourth telescopic support rod can be flipped and folded at the side end of the cross beam and overlap each other, or swing outward and unfolded. The other ends of the first telescopic support rod, the second telescopic support rod, the third telescopic support rod and the fourth telescopic support rod are respectively provided with a ground support assembly.

[0010] Furthermore, the longitudinal beam is a profile with a C-shaped cross-section, and the notches of the two longitudinal beams are located on the side away from each other. One end of the first telescopic support rod and the second telescopic support rod are respectively hinged in the grooves at one end of the two longitudinal beams, and can be flipped and folded in the grooves of the longitudinal beams. The side ends of the other ends of the first telescopic support rod and the second telescopic support rod are provided with connecting parts, and the above-mentioned ground support assembly is installed on the above-mentioned connecting parts.

[0011] Furthermore, the above-mentioned ground support assembly includes a screw, a support plate and a knob. The screw of the ground support assembly at the other end of the above-mentioned first telescopic support rod and the second telescopic support rod vertically penetrates the corresponding above-mentioned connecting parts and is threadedly connected to each other. The screw of the ground support assembly at the other end of the above-mentioned third telescopic support rod and the fourth telescopic support rod respectively penetrates the two and is threadedly connected to each other. The upper end of the above-mentioned screw is connected to the above-mentioned knob, and the lower end of the above-mentioned screw is connected to the above-mentioned support plate.

[0012] Furthermore, the support frame is a portal frame, and the lower end of the column passes through the middle of the beam and is rotatably connected to the support frame.

[0013] Furthermore, a guide sleeve is vertically provided in the middle of the cross beam, and the column passes through the guide sleeve.

[0014] Furthermore, the above-mentioned rotation drive mechanism includes an electric push rod, a rack and a gear. A connecting beam is vertically installed between the vertical beams on both sides of the above-mentioned support frame. The above-mentioned rack is extended along the length direction of the above-mentioned connecting beam and is slidably connected to the above-mentioned connecting beam. The above-mentioned electric push rod is installed at one end of the above-mentioned connecting beam and is connected to the above-mentioned rack. The above-mentioned gear is installed at the lower end of the above-mentioned column and is consistent with the teeth of the above-mentioned rack.

[0015] Furthermore, the above-mentioned rotation drive mechanism includes a worm wheel and a worm that mesh with each other. The above-mentioned worm wheel is coaxially fixed to the lower end of the above-mentioned column. Mounting seats are respectively provided on the vertical beams on both sides of the above-mentioned support frame. The two ends of the above-mentioned worm are rotatably connected to the two above-mentioned mounting seats. One end of the above-mentioned worm is connected to a motor, and the above-mentioned motor is installed on a vertical beam on one side of the above-mentioned support frame.

[0016] Furthermore, the above-mentioned lifting device is an electric hoist.

[0017] Furthermore, a diagonal brace is connected between one end of the boom and the column.

[0018] The beneficial effects of the present invention are: reasonable structural design, the device can be more stable on the ground by unfolding the foldable ground support when in use, and can be retracted to reduce the occupied area when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural side view of the mobile hoisting and lifting device for maintenance teams of the present invention;

[0020] Figure 2 It is a top view of the structure of the foldable ground support in the mobile hoisting device for maintenance teams of the present invention, after being folded and matched with the mobile base;

[0021] Figure 3 It is a top view of the structure of the foldable ground support in the mobile hoisting device for maintenance teams of the present invention, after being unfolded and matched with the mobile base;

[0022] Figure 4 It is a structural schematic diagram of an embodiment of a rotary drive mechanism in a mobile hoisting and lifting device for a maintenance team of the present invention;

[0023] Figure 5 The present invention is a schematic structural diagram of another embodiment of the rotary drive mechanism in the mobile hoisting and lifting device for maintenance teams of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Mobile base; 2. Folding ground support; 3. Support frame; 4. Column; 5. Boom; 6. Rotary drive mechanism; 7. Lifting piece; 11. Crossbeam; 12. Longitudinal beam; 21. First telescopic support rod; 22. Second telescopic support rod; 23. Third telescopic support rod; 24. Fourth telescopic support rod; 25. Floor support assembly; 31. Guide sleeve; 32. Connecting beam; 51. Diagonal brace; 61. Electric push rod; 62. Rack; 63. Gear; 64. Worm gear; 65. Worm; 66. Motor; 211. Connecting part; 251. Screw; 252. Support plate; 253. Knob. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] Example: Figure 1 , 4 As shown in Figures 3 and 5, the mobile lifting and hoisting device for the maintenance team of this embodiment includes a mobile base 1, a foldable ground support 2, a support frame 3, a column 4 and a boom 5. The foldable ground support 2 is installed on the side end of the mobile base 1, and is used for being retracted and folded at the side end of the mobile base 1, or unfolded to the outside of the mobile base 1. The support frame 3 is fixed to the upper end of the mobile base 1, and the column 4 is vertically arranged, and its lower end is rotatably connected to the support frame 3. A rotating drive mechanism 6 connected to the lower end of the column 4 is provided in the support frame 3. One end of the boom 5 is connected and fixed to the upper end of the column 4, and a lifting member 7 is provided at the other end of the boom 5.

[0028] When the mobile lifting and hoisting device for maintenance teams of this embodiment is not in use, the foldable ground support 2 can be folded at the side end of the mobile base 1 to reduce the floor space and facilitate transportation. When in use, the foldable ground support 2 is unfolded to increase the ground contact area, which can make the device more stably supported on the ground and improve the safety of use. In addition, the boom 5 can drive the column 4 to rotate through the rotating drive mechanism 6, which is more labor-saving when in use, saves operation time, and reduces the labor intensity of operation.

[0029] As a preferred embodiment, Figure 1 , 2As shown in Figure 3, the mobile base 1 includes a cross beam 11 and a longitudinal beam 12 vertically connected to the same side of the two ends of the cross beam 11, and the lower ends of the longitudinal beam 12 are respectively provided with walking wheels. The foldable ground support 2 includes a first telescopic support rod 21, a second telescopic support rod 22, a third telescopic support rod 23 and a fourth telescopic support rod 24. One end of the first telescopic support rod 21 and the second telescopic support rod 22 are respectively hinged to one end of the two longitudinal beams 12 away from each other, and can be flipped and folded on the upper The side end of the longitudinal beam 12, or swing outward to unfold, one end of the third telescopic support rod 23 and the fourth telescopic support rod 24 are respectively hinged at the two ends of the side of the cross beam 11 away from the longitudinal beam 12, the third telescopic support rod 23 and the fourth telescopic support rod 24 can be flipped and folded at the side end of the cross beam 11, and overlapped with each other, or swing outward to unfold, the other ends of the first telescopic support rod 21, the second telescopic support rod 22, the third telescopic support rod 23 and the fourth telescopic support rod 24 are respectively provided with a ground support assembly 25.

[0030] In the above embodiment, the mobile base 1 adopts a low frame structure, and the two longitudinal beams 12 can be directly inserted into the bottom of the object to be hoisted, so as to realize close-range hoisting and reduce various high-risk factors such as collision and falling of the hoisted object. In addition, the foldable ground support 2 has an ingenious and reasonable structural design, which makes full use of the side end space of the longitudinal beams 12 and the cross beams 11, and the operation is very convenient whether folding or unfolding.

[0031] As a preferred embodiment, the longitudinal beam 12 is a profile with a C-shaped cross-section, and the notches of the two longitudinal beams 12 are located on the side away from each other. One end of the first telescopic support rod 21 and the second telescopic support rod 22 are respectively hinged in the grooves at one end of the two longitudinal beams 12, and can be flipped and folded in the grooves of the longitudinal beams 12. The side ends of the other ends of the first telescopic support rod 21 and the second telescopic support rod 22 are provided with a connecting portion 211, and the connecting portion 211 is equipped with the above-mentioned ground support assembly 25.

[0032] In the above implementation scheme, the longitudinal beam 12 is reasonably designed and adopts the existing C-shaped steel profile. The first telescopic support rod 21 and the second telescopic support rod 22 can be embedded in the groove of the longitudinal beam 12 after folding. After storage, it is relatively compact and occupies a small space.

[0033] As a preferred embodiment, the above-mentioned ground support assembly 25 includes a screw 251, a support plate 252 and a knob 253. The screw 251 of the ground support assembly 25 at the other end of the above-mentioned first telescopic support rod 21 and the second telescopic support rod 22 vertically penetrates the corresponding above-mentioned connecting part 211 and is threadedly connected to each other. The screw 251 of the ground support assembly 25 at the other end of the above-mentioned third telescopic support rod 23 and the fourth telescopic support rod 24 respectively penetrates the two and is threadedly connected to each other. The upper end of the above-mentioned screw 251 is connected to the above-mentioned knob 253, and the lower end of the above-mentioned screw 251 is connected to the above-mentioned support plate 252.

[0034] In the above embodiment, the floor support assembly 25 has a simple structural design, and the support plate 252 can be placed on the ground or suspended in the air by simply turning the knob 253, which is convenient to operate. At the same time, the installation of the floor support assembly 25 is relatively reasonable and will not affect the folding of the first telescopic support rod 21, the second telescopic support rod 22, the third telescopic support rod 23 and the fourth telescopic support rod 24.

[0035] In this embodiment, the support frame 3 is a door-type frame, and the lower end of the column 4 passes through the middle of the beam 11 and is rotatably connected to the support frame 3. The support frame 3 has a reasonable structural design, can reduce its own weight, and is conducive to the assembly of the rotation drive mechanism 6.

[0036] In this embodiment, a guide sleeve 31 is vertically provided in the middle of the cross beam 11, and the column 4 passes through the guide sleeve 31. The guide sleeve 31 can guide and limit the column 4 to a certain extent, so as to avoid the column 4 and the support frame 3 from being skewed due to the thin connection between the column 4 and the support frame 3.

[0037] As a preferred embodiment, Figure 4 As shown, the above-mentioned rotation drive mechanism 6 includes an electric push rod 61, a rack 62 and a gear 63. A connecting beam 32 is vertically installed between the vertical beams on both sides of the above-mentioned support frame 3. The above-mentioned rack 62 is extended along the length direction of the above-mentioned connecting beam 32 and is slidably connected with the above-mentioned connecting beam 32. The above-mentioned electric push rod 61 is installed at one end of the above-mentioned connecting beam 32 and is connected to the above-mentioned rack 62. The above-mentioned gear 63 is installed at the lower end of the above-mentioned column 4 and is consistent with the teeth of the above-mentioned rack 62.

[0038] In the above embodiment, the rotary drive mechanism 6 uses the electric push rod 61 to drive the rack 62 to translate, so as to drive the gear 63 to rotate, thereby realizing the rotation of the column 4. The design is relatively simple and ingenious.

[0039] Specifically, a track may be provided on one side of the connecting beam 32, and the rack 62 is mounted on the track via a slider.

[0040] As a preferred embodiment, Figure 5As shown, the above-mentioned rotation driving mechanism 6 includes a worm wheel 64 and a worm 65 that mesh with each other. The above-mentioned worm wheel 64 is coaxially fixed to the lower end of the above-mentioned column 4. The vertical beams on both sides of the above-mentioned support frame 3 are respectively provided with mounting seats. The two ends of the above-mentioned worm 65 are rotatably connected to the two above-mentioned mounting seats. One end of the above-mentioned worm 65 is connected to the motor 66, and the above-mentioned motor 66 is installed on a vertical beam on one side of the above-mentioned support frame 3.

[0041] In the above embodiment, the rotation drive mechanism 6 adopts a matching structure design of a worm wheel 64 and a worm 65 , which runs relatively smoothly and can realize good rotation of the column 4 .

[0042] In this embodiment, the lifting member 7 is a conventional electric hoist of an adapted model.

[0043] In this embodiment, a diagonal brace 51 is connected between one end of the boom 5 and the column 4, so as to enhance the structural strength between the boom 5 and the column 4.

[0044] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A mobile hoisting device for maintenance teams, characterized in that: The invention comprises a mobile base (1), a foldable ground support (2), a support frame (3), a column (4) and a boom (5); the foldable ground support (2) is mounted on the side end of the mobile base (1) and is used to be retracted and folded at the side end of the mobile base (1), or unfolded to the outside of the mobile base (1); the support frame (3) is fixed to the upper end of the mobile base (1); the column (4) is vertically arranged, and its lower end is rotatably connected to the support frame (3); a rotating drive mechanism (6) connected to the lower end of the column (4) is provided in the support frame (3); one end of the boom (5) is connected and fixed to the upper end of the column (4); and the other end of the boom (5) is provided with a lifting member (7).

2. The mobile hoisting device for maintenance teams according to claim 1 is characterized in that: The mobile base (1) comprises a crossbeam (11) and a longitudinal beam (12) vertically connected to the same side of both ends of the crossbeam (11), and the lower ends of the longitudinal beam (12) are respectively provided with walking wheels. The foldable ground support (2) comprises a first telescopic support rod (21), a second telescopic support rod (22), a third telescopic support rod (23) and a fourth telescopic support rod (24), and one end of the first telescopic support rod (21) and the second telescopic support rod (22) are respectively hinged to one end of the two longitudinal beams (12) on the side away from each other, and can be flipped and folded on the longitudinal beams. (12) side end, or swing outward to unfold, one end of the third telescopic support rod (23) and the fourth telescopic support rod (24) are respectively hinged to the two ends of the side of the cross beam (11) away from the longitudinal beam (12), the third telescopic support rod (23) and the fourth telescopic support rod (24) can be flipped and folded at the side end of the cross beam (11), and overlapped with each other, or swing outward to unfold, and the other ends of the first telescopic support rod (21), the second telescopic support rod (22), the third telescopic support rod (23) and the fourth telescopic support rod (24) are respectively provided with a ground support assembly (25).

3. The mobile hoisting device for maintenance teams according to claim 2 is characterized in that: The longitudinal beam (12) is a profile with a C-shaped cross section. The notches of the two longitudinal beams (12) are both located on a side away from the two longitudinal beams. One end of the first telescopic support rod (21) and the second telescopic support rod (22) are respectively hinged in the grooves at one end of the two longitudinal beams (12) and can be flipped and folded in the grooves of the longitudinal beams (12). The side ends of the other ends of the first telescopic support rod (21) and the second telescopic support rod (22) are provided with a connecting portion (211), and the connecting portion (211) is equipped with the landing support assembly (25).

4. The mobile hoisting device for maintenance teams according to claim 3 is characterized by: The floor support assembly (25) comprises a screw rod (251), a support plate (252) and a knob (253); the screw rod (251) of the floor support assembly (25) at the other end of the first telescopic support rod (21) and the second telescopic support rod (22) vertically penetrates the corresponding connecting portion (211) and is threadedly connected to each other; the screw rod (251) of the floor support assembly (25) at the other end of the third telescopic support rod (23) and the fourth telescopic support rod (24) respectively penetrates the two and is threadedly connected to each other; the upper end of the screw rod (251) is connected to the knob (253), and the lower end of the screw rod (251) is connected to the support plate (252).

5. A mobile hoisting device for maintenance teams according to any one of claims 2 to 4, characterized in that: The support frame (3) is a door-type frame, and the lower end of the column (4) passes through the middle of the crossbeam (11) and is rotatably connected to the support frame (3).

6. The mobile hoisting device for maintenance teams according to claim 5 is characterized by: A guide sleeve (31) is vertically arranged in the middle of the crossbeam (11), and the upright column (4) passes through the guide sleeve (31).

7. The mobile hoisting device for maintenance teams according to claim 5, characterized in that: The rotary drive mechanism (6) comprises an electric push rod (61), a rack (62) and a gear (63); a connecting beam (32) is vertically installed between the vertical beams on both sides of the support frame (3); the rack (62) is extended along the length direction of the connecting beam (32) and is slidably connected to the connecting beam (32); the electric push rod (61) is installed at one end of the connecting beam (32) and is connected to the rack (62); the gear (63) is installed at the lower end of the column (4) and is matched with the teeth of the rack (62).

8. The mobile hoisting device for maintenance teams according to claim 5 is characterized by: The rotary drive mechanism (6) comprises a worm wheel (64) and a worm (65) meshing with each other, the worm wheel (64) is coaxially fixed to the lower end of the column (4), and mounting seats are respectively provided on the vertical beams on both sides of the support frame (3), and the two ends of the worm (65) are rotatably connected to the two mounting seats, and one end of the worm (65) is connected to a motor (66), and the motor (66) is installed on a vertical beam on one side of the support frame (3).

9. The mobile hoisting device for maintenance teams according to claim 1, characterized in that: The lifting member (7) is an electric hoist.

10. A mobile hoisting device for maintenance teams according to any one of claims 1 to 4, characterized in that: An oblique brace (51) is connected between one end of the suspension arm (5) and the upright column (4).

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