Equipment hoisting device for narrow space and transfer trolley

Abstract

The invention relates to an equipment hoisting device and a transfer trolley for a narrow space, the equipment hoisting device comprises a portal crane frame and a lever block, the portal crane frame is an assembly frame, and the height of the portal crane frame is adjustable; hoisting frame walking wheels are installed on the two sides of the supporting bottom plate at the lower ends of the first gantry supporting column and the second gantry supporting column. A device bearing frame formed by vertical plates is fixed on a bottom plate of the transfer trolley, gantry supporting column placing frames are welded on two sides of the device bearing frame, and a bearing beam guide groove is fixed on the bottom plate between the vertical plates of the device bearing frame opposite to the handrail; the bearing cross beam of the disassembled equipment hoisting device can be clamped in the bearing beam guide groove, and the inserting body on the lower portion of the first gantry supporting column and the lower portion of the second gantry supporting column and the other portion of the equipment hoisting device can be hung on the gantry supporting column placing frames on the two sides of the device bearing frame. The height of the equipment hoisting device is convenient to adjust, and the transfer trolley is small and light, can meet the use requirements of first-grade fire-proof and explosion-proof places, and is suitable for disassembly and assembly of equipment in a narrow space.

Description

Technical Field

[0001] The invention relates to equipment for lifting and transferring equipment and articles, and in particular to an equipment lifting device and a transfer vehicle used in a narrow space. Background Art

[0002] There are many large equipment in the production equipment rooms of oil production, gathering and transportation in the petroleum and chemical industries. The maintenance of these large equipment during use is essential, and occasional failures are inevitable. When special maintenance is required and complex failures occur and need to be disassembled and returned to the factory for repair and maintenance, due to the large size and weight of the equipment, the small space on the production site, the complex pipelines, and the inability of large lifting machinery to enter, multiple people are required to enter the site for construction, making on-site maintenance and construction difficult.

[0003] In these production and construction sites, oil and gas gathering and transportation stations are Class A fire and explosion proof places. When repairing or replacing equipment, it is prohibited to use electric devices for lifting, and it can only be moved by manual transportation. This greatly increases the labor intensity of on-site maintenance operators, reduces work efficiency, and is time-consuming and labor-intensive. It not only poses a huge safety hazard but also increases production and operation costs.

[0004] In view of the above problems, it is necessary to develop an equipment lifting device and transfer vehicle for narrow spaces, so as to solve the above drawbacks, reduce the labor intensity of workers, save production costs, and achieve green, environmental protection, efficient and safe production.

[0005] After searching, the relevant patent technologies currently disclosed are as follows: The gantry crane device disclosed in patent application number CN202110305440.8 involves the field of hoisting technology. Among them, the gantry crane device includes a gantry crane track; two gantry cranes, which are arranged on the gantry crane track at intervals along the length direction of the gantry crane track, and the gantry crane has a crossbeam; at least two longitudinal beams, and the two ends of the longitudinal beams are respectively slidably connected to the two crossbeams along the length direction of the crossbeam, and at least two of the longitudinal beams are perpendicular to the length direction of the crossbeam and are arranged parallel to each other; wherein the length direction of the crossbeam is perpendicular to the length direction of the gantry crane track; and at least two lifting trolleys, which are slidably connected to the longitudinal beams along the length direction of the gantry crane track.

[0006] The above invention realizes the lifting of components such as prefabricated cap beams by adding a lifting device that can move on a plane between two gantry cranes, so that the lifting can be completed by using two gantry cranes with a smaller lifting weight under the condition of limited site. Moreover, such components are lifted in the space between the two gantry cranes, which can fully ensure the combined force of the two gantry cranes and ensure the lifting safety, thereby improving the versatility of the gantry cranes.

[0007] However, the above invention device requires the joint efforts of two gantry cranes to ensure the safety of hoisting and cannot be disassembled. Its structure is relatively complex and has few functions. It cannot be used in narrow equipment rooms in oil production and gathering and transportation sites in the petroleum and chemical industries, such as: gathering and transportation stations, oil production pump rooms, water injection pump rooms and other equipment rooms.

[0008] Application No. CN202111189615.X discloses a gantry crane suspension device, comprising a cross frame, the cross frame has an I-shaped cross section, and includes a fixed plate, an intermediate plate connected to the fixed plate, and a suspension plate connected to the intermediate plate, the width of the suspension plate is greater than the width of the intermediate plate; the lifting unit includes a connecting part, a hydraulic cylinder connected to the connecting part, the connecting part is provided with a first sliding groove, and the intermediate plate is embedded in the first sliding groove; the hydraulic cylinder is connected to a hanging unit; the suspension device of the gantry crane can automatically perform the workflow of extracting, transporting, and disassembling goods, without the need for manual close-range operation of the goods, with high safety, and quick and convenient operation.

[0009] The above invention can automatically carry out the workflow of picking up, transporting and disassembling goods, without the need for manual close-range operation of the goods, with high safety and quick and convenient operation. However, it can only be used in a wide range of production scenarios.

[0010] However, the above invention has a simple structure and is easy to operate, but it uses an electric drive mode and cannot meet the use requirements of Class A fire and explosion-proof places.

[0011] The luffing gantry crane device disclosed in application number CN201410618732.7 drives the gears at both ends of the driving shaft through a swing reducer, and the gears mesh to drive the gear plate at the lower end of the gantry frame to achieve the swing luffing of the gantry crane; the winch transmission drives the wire rope of the winch mechanism, and the wire rope is connected to the hook for hoisting. An electromagnetic brake device is provided on the winch drive shaft to realize the automatic tightening of the winch shaft in the power failure state, so as to improve the safety performance of the gantry crane.

[0012] The above invention has the function of hoisting and can tilt and change the amplitude to facilitate the adjustment of the supply angle of the hoisted object; it can realize the automatic tightening of the hoisting shaft in the power outage state to improve the safety performance of the gantry crane. However, the function is relatively simple, and the components in the invention are fixed and cannot be disassembled. It cannot adapt to the complex operation scenes and actual construction operations of pipelines in the narrow equipment room of the oil field production unit.

[0013] The lifting and hoisting equipment and transfer tools used for equipment maintenance and installation in narrow equipment rooms in oil fields and petrochemical industries still need to be improved. Summary of the invention

[0014] The purpose of the present invention is to provide an equipment hoisting device and a transfer vehicle for use in narrow spaces, which can adapt to spacious maintenance sites and the disassembly and installation of equipment in narrow spaces, and also provide a transfer vehicle for the hoisting device and the disassembly and installation equipment, thereby solving the contradiction between supply and demand of the current decreasing number of workers, improving maintenance efficiency, and reducing production and operation costs.

[0015] The technical solution of the present invention is: a device for lifting equipment in a narrow space, including a gantry crane and a lever hoist, wherein: the gantry crane is an assembly frame, and the plug-in bodies of the upper parts of the gantry pillars one and two are fixed below the two sides of the load-bearing beam, and the plug-in bodies of the upper parts and the lower parts of the gantry pillars one and two are provided with positioning holes, and the heights of the gantry pillars one and two can be adjusted by positioning holes and positioning pins; the lower ends of the plug-in bodies of the lower parts of the gantry pillars one and two are fixed to the supporting base plate, and the plug-in bodies of the lower parts of the gantry pillars one and two are fixed on the supporting base plate through supporting side plates; the crane walking wheels are installed on both sides of the supporting base plate at the lower ends of the gantry pillars one and two.

[0016] Preferably, the plug-in body at the upper part of the gantry pillar one and the gantry pillar two is welded to the lower end of the load-bearing beam; a lifting handle is fixed to the lower end of the load-bearing beam outside the plug-in body of the gantry pillar one and the gantry pillar two, and the lower part of the handle of the lifting handle is bent outward and a hand grip ball or a hand grip ring is installed at the lower end of the bent section.

[0017] Preferably, the plug-in bodies at the upper parts of the gantry pillars one and two are formed by pairing and fixing two pieces of U-shaped steel and a connecting steel block together, and the connecting steel block is welded to the top of the plug-in bodies at the upper parts of the gantry pillars one and two; the upper ends of the plug-in bodies at the lower parts of the gantry pillars one and two are provided with connecting steel block receiving grooves, and the plug-in bodies at the upper parts of the gantry pillars one and two can be inserted into the plug-in bodies at the lower parts of the gantry pillars one and two, and the connecting steel blocks can be seated in the connecting steel block receiving grooves; there are more than four positioning holes arranged in the plug-in bodies of the gantry pillars one and two; and a pillar handrail is installed on the outer side of the lower ends of the plug-in bodies of the gantry pillars one and two.

[0018] Preferably, the wheel body of the crane traveling wheel is installed under the supporting base plate through the wheel frame crane traveling wheel mounting bracket and the wheel axle, and a speed reduction and torque increase mechanism is installed on the wheel axle between the wheel body and the crane traveling wheel mounting bracket; the speed reduction and torque increase mechanism includes a planetary gear transmission and a speed change crank handle, the planetary gear transmission is installed on the wheel axle of the crane traveling wheel, and the connecting end of the speed change crank handle is fixed together with the sun gear in the planetary gear transmission.

[0019] Preferably, the connecting end of the speed change crank handle passes through the upper part of the crane walking wheel mounting bracket, and a ratchet wrench connecting head is also provided at the handle end of the speed change crank handle, and the ratchet wrench connecting head can be connected to a ratchet wrench.

[0020] Preferably, the mounting bracket connecting shaft of the crane walking wheel is arranged on the top of the crane walking wheel mounting bracket and passes through the supporting bottom plate to be connected to the walking direction adjuster; the walking direction adjuster is provided with a direction lock, a locking pin, a connecting screw sleeve and an adjusting block, wherein: a direction adjustment hole is provided on the outer periphery of the block body of the adjusting block, and the center hole of the adjusting block is installed on the outside of the mounting bracket connecting shaft; one end of the direction lock is a connecting screw sleeve and the other end is an adjusting handle, the locking pin is arranged in a connecting plate body between the connecting screw sleeve and the adjusting handle, and the connecting screw sleeve can be threadedly connected to the mounting bracket connecting shaft; the locking pin can pass through the connecting plate body and be inserted into the direction adjustment hole in the adjusting block.

[0021] Preferably, the number of direction adjustment holes in the adjustment block is more than three.

[0022] The transfer vehicle used in conjunction with the equipment lifting device for narrow spaces is provided with handrails, transfer vehicle running wheels and a base plate, wherein: an equipment carrying frame composed of vertical plates is fixed on the base plate, gantry support placement frames are welded on both sides of the equipment carrying frame, and a load-bearing beam guide groove is fixed on the base plate between the vertical plates of the equipment carrying frame opposite the handrail; the load-bearing crossbeam of the disassembled equipment lifting device can be clamped in the load-bearing beam guide groove, and the plug-in body at the lower part of the gantry support one and the gantry support two and the rest of the equipment lifting device can be hung on the gantry support placement frames on both sides of the equipment carrying frame.

[0023] Preferably, the gantry support frame welded on the upper part of the device carrier frame is provided with two frame plates and both frame plates are plates that are bent outward and upward; the height between the bottom of the gantry support frame and the bottom plate is greater than the distance between the inner top of the supporting side plate to the bottom surface of the crane running wheel.

[0024] Preferably, a horizontal plate with a load-bearing beam slot is welded between the tops of the two vertical plates of the device carrier frame, the load-bearing beam slot is parallel to the load-bearing beam guide slot, the slot width of the load-bearing beam slot is equal to or greater than the thickness of the load-bearing crossbeam and can hold the load-bearing crossbeam therein; a tool storage box is fixed and installed between the armrest rod and the two vertical plates, and a non-slip pad is placed at the bottom of the tool storage box; the load-bearing beam guide slot is a U-shaped slot located between the device carrier frames and fixed on the bottom plate of the transfer vehicle.

[0025] Compared with the prior art, the present invention has the following remarkable effects: In the equipment installation rooms and equipment installation places of oil production, gathering and transportation in the petroleum industry, most of them are Class A fireproof and explosion-proof places. The production site space is small and limited, and the pipelines are complicated. When the equipment needs special maintenance and repair, multiple employees are required to move it by manpower, which is time-consuming and labor-intensive, has great safety hazards, and increases production and operation costs. Using the present invention, only one employee is needed to push the equipment hoisting device to the operation site with a transfer vehicle, and 2-3 employees can quickly assemble the various components of the equipment hoisting device, lift the equipment to be repaired, and use a transfer vehicle to transport and transfer the equipment from the equipment room to the maintenance site.

[0026] In order to adapt to the use in narrow construction sites, the gantry crane in the equipment hoisting device is changed to an assembly frame, so that the height of the gantry pillars 1 and 2 can be easily adjusted, and can be quickly disassembled and installed on site to adapt to the various heights of the maintenance equipment. The hand-operated hoist is used to lift the equipment to be repaired to avoid scratches and frictions between equipment or collisions between equipment and personnel during on-site operations, thereby improving the safety of maintenance work.

[0027] In addition, a deceleration and torque-increasing mechanism is installed in the traveling wheels of the crane, which can effectively assist the equipment lifting device to easily pass through pits, gentle slopes and soft ground. At the same time, a speed change handle and ratchet wrench are added to provide convenience for the operator.

[0028] In order to facilitate the transportation of equipment hoisting devices, a transfer vehicle was specially developed, which has a simple structure, is compact and light, has a sturdy body and works reliably. The disassembled parts of the equipment hoisting device can be conveniently hung and placed in the transfer vehicle, which has excellent performance and high handling efficiency. A female worker can easily push it into the maintenance site, effectively solving the problem of equipment disassembly, maintenance and transportation.

[0029] The present invention is applicable to equipment maintenance and transportation operations in the working environment where the equipment and pipelines are arranged in a complex and narrow space in most equipment rooms in oil fields. It can especially meet the fire prevention and explosion-proof requirements of the above-mentioned production and maintenance sites and adapt to the working environment, and has a wide range of applications. The present invention has the advantages of simple structure, convenient disassembly and assembly, convenient operation, easy to learn and understand, low failure rate, long service life, etc., so as to solve the contradiction between supply and demand of the current decreasing number of workers, and can significantly improve maintenance efficiency and reduce production and operation costs.

[0030] In summary, the present invention solves practical problems in the maintenance process such as small on-site space, complex pipelines, large equipment size and heavy weight, saves labor costs, reduces the labor intensity of workers, improves work efficiency, and reduces safety hazards in the maintenance process, with significant use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a front view of the structural schematic diagram of the equipment lifting device in the present invention.

[0032] Figure 2 yes Figure 1 Side view of.

[0033] Figure 3 yes Figure 1 Schematic diagram of the appearance structure of the crane travel wheel equipped with a travel direction regulator and a deceleration and torque increase mechanism.

[0034] Figure 4 yes Figure 3 Schematic diagram of the internal structure of the medium speed reduction and torque increase mechanism.

[0035] Figure 5 It is a front view of the schematic structural diagram of the transfer vehicle in the present invention.

[0036] Figure 6 yes Figure 5 Right view of .

[0037] In the figure: equipment lifting device: load-bearing beam 1, gantry pillar one 2, gantry pillar two 3, lifting fixing plate 4, lifting handle 5, hand hoist 6, positioning pin 7, positioning hole 8, pillar handrail 9, crane running wheel 10, crane running wheel mounting bracket 10-1, mounting bracket connecting shaft 10-2, speed reduction and torque increase mechanism 11, planetary gear 11-1, planetary wheel frame 11-2, sun gear 11-3, ring gear 11-4, speed change crank handle 11-5, connecting steel block 12, supporting side plate 13, supporting bottom plate 14, direction adjuster 15, direction lock 15-1, locking pin 15-2, connecting screw sleeve 15-3, direction adjustment hole 15-4, adjustment block 15-5, brake floor lock 16, ratchet wrench 23, connecting steel block receiving groove 24.

[0038] Transfer vehicle: gantry support frame 17, load-bearing beam slot 18, handrail 19, tool storage box 20, load-bearing beam guide slot 21, transfer vehicle running wheel 22. DETAILED DESCRIPTION

[0039] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] See also Figure 1 - Figure 6 , a device for lifting equipment in a narrow space, comprising a gantry crane and a lever hoist 6, wherein: the gantry crane is an assembly frame, and the plug-in bodies of the upper parts of the gantry pillars 2 and 3 are fixed below the two sides of the load-bearing crossbeam 1, and the plug-in bodies of the upper parts and the lower parts of the gantry pillars 2 and 3 are provided with positioning holes 8, and the heights of the gantry pillars 2 and 3 can be adjusted by the positioning holes 8 and the positioning pins 7; the lower ends of the plug-in bodies of the lower parts of the gantry pillars 2 and 3 are fixed with a supporting base plate 14, and the plug-in bodies of the lower parts of the gantry pillars 2 and 3 are fixed on the supporting base plate 14 through supporting side plates 13; the crane walking wheels 10 are installed on both sides of the supporting base plate 14 at the lower ends of the gantry pillars 2 and 3.

[0043] The equipment hoisting device in the present invention is mainly composed of a gantry crane, a lever hoist 6 and a crane running wheel 10. In order to adapt to the use in a construction site with a narrow space, the present invention changes the gantry crane into an assembly frame by plugging, and fixes a support base plate 14 at the bottom of the gantry pillar 1 2 and the gantry pillar 2 3, and fixes the plug-in body of the lower part of the gantry pillar 1 2 and the gantry pillar 2 3 on the support base plate 14 through the support side plate 13, and installs the crane running wheel 10 at the lower end of the support base plate 14. In this way, the gantry pillar 1 2 and the gantry pillar 2 3 are firmly fixed on the support base plate 14 equipped with the crane running wheel 10, and the gantry crane can also move and walk freely and smoothly. According to the height of the hoisted device and the object, the height of the gantry crane can be adjusted freely, which is convenient for use in a narrow space. After the height adjustment of the gantry crane is completed, the lever hoist 6 is hung under the load-bearing beam 1 through the hoisting fixing plate 4.

[0044] On the basis of the above-mentioned embodiment 1, the present invention also has the following embodiments: A preferred embodiment: the plug-in body at the upper part of the gantry pillar 1 2 and the gantry pillar 2 3 is welded to the lower end of the load-bearing beam 1; the lifting handle 5 is fixed to the lower end of the load-bearing beam 1 outside the plug-in body of the gantry pillar 1 2 and the gantry pillar 2 3, and the lower part of the handle of the lifting handle 5 is bent outward and a hand grip ball or hand grip ring is installed at the lower end of the bent section. In order to facilitate lifting the load-bearing beam 1 and adjusting the height of the gantry pillar 1 2 and the gantry pillar 2 3 located below, a lifting handle 5 is installed on the outer side of the lower end of the load-bearing beam 1 and a hand grip ball or hand grip ring is installed at the lower end of the bent section, so that the staff can grasp it conveniently.

[0045] A preferred embodiment: the plug-in body at the upper part of the gantry pillar 1 2 and the gantry pillar 2 3 is matched and fixed together by two pieces of U-shaped steel and a connecting steel block 12, and the connecting steel block 12 is welded to the top of the plug-in body at the upper part of the gantry pillar 1 2 and the gantry pillar 2 3; the upper end of the plug-in body at the lower part of the gantry pillar 1 2 and the gantry pillar 2 3 is provided with a connecting steel block receiving groove 24, the plug-in body at the upper part of the gantry pillar 1 2 and the gantry pillar 2 3 can be inserted into the plug-in body at the lower part of the gantry pillar 1 2 and the gantry pillar 2 3, and the connecting steel block 12 can be seated in the connecting steel block receiving groove 24; the number of positioning holes 8 provided in the plug-in body of the gantry pillar 1 2 and the gantry pillar 2 3 is more than four; the outer side of the lower end of the plug-in body of the gantry pillar 1 2 and the gantry pillar 2 3 is provided with a pillar handrail 9. The connecting steel block 12 and the connecting steel block receiving groove 24 can prevent the plug-in body of the gantry pillar 1 2 and the gantry pillar 2 3 from being stuck after directly rushing down during the adjustment process. During assembly, insert the plug-in bodies on the upper parts of the gantry pillars 1 2 and gantry pillars 2 3 under the load-bearing beam 1 into the corresponding plug-in bodies on the lower parts of the gantry pillars 1 2 and gantry pillars 2 3, connect them through the locating pins 7, hold the pillar handrails 9 and adjust them to the required position, insert the locating pins 7 into the locating holes 8 to fix them, and quick disassembly and installation can be achieved at the use site.

[0046] A preferred embodiment: the wheel body of the crane running wheel 10 is installed below the support base plate 14 through the wheel frame crane running wheel mounting bracket 10-1 and the wheel axle, and a speed reduction and torque increase mechanism 11 is installed on the wheel axle between the wheel body and the crane running wheel mounting bracket 10-1; the speed reduction and torque increase mechanism 11 includes a planetary gear transmission and a speed change crank 11-5, the planetary gear transmission is installed on the wheel axle of the crane running wheel 10, and the connecting end of the speed change crank 11-5 is fixed to the sun gear 11-3 in the planetary gear transmission. The planetary gear transmission is also provided with a planetary wheel 11-1, a planetary wheel carrier 11-2 and a gear ring 11-4, and the planetary gear transmission is a prior art and is available on the market. The present invention installs the planetary gear transmission on the axle of the crane traveling wheel 10, which can improve the walking ability of the equipment lifting device, allow it to walk on uneven ground, and effectively assist the equipment lifting device to easily pass through pits, gentle slopes and soft ground. The sun gear 11-3 can be rotated by the speed change crank 11-5 to drive the planetary gear 11-1 to rotate, thereby assisting walking and providing convenience for the operator.

[0047] A preferred embodiment: the connection end of the speed change crank handle 11-5 passes through the upper part of the crane walking wheel mounting bracket 10-1, and a ratchet wrench connector is also provided at the handle end of the speed change crank handle 11-5, and the ratchet wrench connector can be connected to the ratchet wrench 23 to increase the shaking power. The brake ground lock 16 installed under the support bottom plate 14 at the lower end of the gantry pillar 1 2 and the gantry pillar 2 3 is a prior art and is available on the market.

[0048] A preferred embodiment: the mounting bracket connecting shaft 10-2 of the crane traveling wheel 10 is arranged on the top of the crane traveling wheel mounting bracket 10-1 and passes through the supporting base plate 14 to be connected with the traveling direction regulator 15; the traveling direction regulator 15 is provided with a direction lock 15-1, a locking pin 15-2, a connecting screw sleeve 15-3 and an adjusting block 15-5, wherein: a direction adjusting hole 15-4 is provided on the outer periphery of the block of the adjusting block 15-5, and the center hole of the adjusting block 15-5 is installed on the outside of the mounting bracket connecting shaft 10-2; one end of the direction lock 15-1 is the connecting screw sleeve 15-3, and the other end is the adjusting handle, the locking pin 15-2 is arranged in the connecting plate body between the connecting screw sleeve 15-3 and the adjusting handle, and the connecting screw sleeve 15-3 can be threadedly connected with the mounting bracket connecting shaft 10-2; the locking pin 15-2 can pass through the connecting plate body and be inserted into the direction adjusting hole 15-4 in the adjusting block 15-5.

[0049] A preferred embodiment: the direction adjustment holes 15-4 in the adjustment block 15-5 are arranged at least three. The travel direction adjuster 15 installed on the crane travel wheel 10 can make the crane travel wheel 10 realize 360° steering. The direction adjuster 15 can be adjusted and locked at any angle, and can adjust the travel direction of the equipment hoisting device at any time, assisting the equipment hoisting device to shuttle in a narrow and crowded equipment room, and lock in place at any position.

[0050] A transfer vehicle used in conjunction with an equipment lifting device for use in narrow spaces is provided with a handrail 19, a transfer vehicle running wheel 22 and a base plate, wherein: an equipment carrier frame composed of vertical plates is fixed on the base plate, gantry support frame placement frames 17 are welded on both sides of the equipment carrier frame, and a load-bearing beam guide groove 21 is fixed on the base plate between the vertical plates of the equipment carrier frame opposite to the handrail 19; the load-bearing crossbeam 1 of the disassembled equipment lifting device can be clamped in the load-bearing beam guide groove 21, and the plug-in body at the lower part of the gantry support 1 2 and the gantry support 2 3 and the rest of the equipment lifting device can be suspended on the gantry support frame placement frames 17 on both sides of the equipment carrier frame.

[0051] The transfer vehicle is compact and light. When in use, the load-bearing crossbeam 1 with the plug-in bodies welded to the upper parts of the gantry pillars 1 2 and 2 3 in the equipment hoisting device is pushed into the load-bearing beam guide groove 21, and the crossbeam part of the load-bearing crossbeam 1 is located on one side of the handrail 19. The disassembled plug-in bodies at the lower parts of the gantry pillars 1 2 and 2 3 and other components connected thereto can be hung in the gantry pillar placement frames 17 on both sides of the device carrier.

[0052] On the basis of the above-mentioned embodiment 1, the present invention also has the following embodiments: A preferred embodiment: the gantry support frame 17 welded on the upper part of the device carrier is provided with two frame plates and both frame plates are plates that are bent outward and upward; the height between the bottom of the gantry support frame 17 and the bottom plate is greater than the distance between the inner top of the support side plate 13 and the bottom surface of the crane running wheel 10. The support side plates 13 can be respectively suspended on the two frame plates of the gantry support frame 17, and the plug-in body at the lower part of the disassembled gantry support 1 2 and gantry support 2 3 is located between the two frame plates of the gantry support frame 17, and the support bottom plate 14 and the crane running wheel 10 connected to the lower part of the gantry support 1 2 and gantry support 2 3 can be suspended on both sides of the device carrier of the transfer vehicle.

[0053] A preferred embodiment: a horizontal plate with a load-bearing beam slot 18 is welded between the tops of the two vertical plates of the device carrier frame, the load-bearing beam slot 18 is parallel to the load-bearing beam guide slot 21, the slot width of the load-bearing beam slot 18 is equal to or greater than the thickness of the load-bearing beam 1 and can hold the load-bearing beam 1 therein; a tool storage box 20 is fixed and installed between the rod body of the handrail 19 and the two vertical plates, and a non-slip pad is placed on the bottom of the tool storage box 20; the load-bearing beam guide slot 21 is a U-shaped slot located between the device carrier frames and fixed on the bottom plate of the transfer vehicle.

[0054] The transfer vehicle is overall strip-shaped, slender and compact, and can travel in a narrow space with dense pipelines and equipment, providing convenience for the transfer of equipment lifting devices. The transfer vehicle is used in conjunction with the equipment lifting device, which greatly facilitates the transfer and installation of maintenance equipment and disassembly equipment.

[0055] During the transportation of the equipment lifting device, the disassembled lower parts of the gantry pillar 1 2 and the gantry pillar 2 3 are respectively hung on the gantry pillar placement frame 17, and the load-bearing beam 1 can be placed in the load-bearing beam guide groove 21. The load-bearing beam slot 18 in the middle of the top horizontal plate of the device carrier frame can prevent the load-bearing beam 1 from shaking, and the handrail 19 can be pushed to move forward.

[0056] A tool storage box 20 is provided at the position of the armrest 19. An anti-skid pad is placed at the bottom of the tool storage box 20, which can prevent skidding and play a shock-absorbing role. Tools and supplies can be classified and stored for easy use.

[0057] The present invention includes two parts: an equipment hoisting device and a transfer vehicle. The equipment hoisting device provided by the present invention is suitable for the maintenance and transportation of equipment in oilfield production equipment rooms such as oil gathering and oil production in the petroleum industry. The upper parts of the gantry pillars on both sides of the load-bearing beam in the equipment hoisting device can be inserted together through the positioning holes 8 and the positioning pins 7. The lever hoist 6 is connected to the hoisting fixing plate 4. Pressing the lever hoist 6 can lift the equipment to be hoisted. The lower ends of the gantry pillars 1 2 and gantry pillars 2 3 are welded on the support base plate 14. The direction regulator 15 installed on the support base plate 14 is connected to the crane running wheels 10 below the support base plate 14, and the running direction of the crane running wheels 10 can be adjusted.

[0058] For ease of use, a brake ground lock 16 is installed under the supporting base plate 14 and a speed reduction and torque increase mechanism 11 is installed for the crane running wheel 10. The speed change crank 11-5 or a ratchet wrench 23 connected to the speed change crank 11-5 can be used to assist the speed change of the crane running wheel 10, which is convenient for setting the lifting device to pass through uneven potholes.

[0059] The embodiments described above are only typical embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and enlightenment of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the creative spirit and creative concept of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope is not limited to the above description.

Claims

1. A device for lifting equipment in a narrow space, comprising a gantry crane and a lever hoist (6), characterized in that: The gantry crane is an assembly frame. The upper plug-in bodies of the gantry pillars 1 (2) and gantry pillars 2 (3) are fixed below the two sides of the load-bearing crossbeam (1). The upper plug-in bodies and the lower plug-in bodies of the gantry pillars 1 (2) and gantry pillars 2 (3) are both provided with positioning holes (8). The heights of the gantry pillars 1 (2) and gantry pillars 2 (3) can be adjusted through the positioning holes (8) and positioning pins (7); the lower ends of the plug-in bodies of the lower parts of the gantry pillars 1 (2) and gantry pillars 2 (3) are fixed to a supporting bottom plate (14), and the plug-in bodies of the lower parts of the gantry pillars 1 (2) and gantry pillars 2 (3) are fixed on the supporting bottom plate (14) through supporting side plates (13); and the crane running wheels (10) are installed on both sides of the supporting bottom plate (14) at the lower ends of the gantry pillars 1 (2) and gantry pillars 2 (3).

2. The equipment hoisting device for narrow space as claimed in claim 1, characterized in that The plug-in bodies at the upper parts of the gantry pillars 1 (2) and gantry pillars 2 (3) are welded to the lower end of the load-bearing beam (1); a lifting handle (5) is fixed to the lower end of the load-bearing beam (1) outside the plug-in bodies of the gantry pillars 1 (2) and gantry pillars 2 (3); the lower part of the handle of the lifting handle (5) is bent outward and a hand grip ball or a hand grip ring is installed at the lower end of the bent section.

3. The equipment hoisting device for narrow space as claimed in claim 2, characterized in that: The plug-in bodies at the upper parts of the gantry pillars 1 (2) and gantry pillars 2 (3) are formed by pairing and fixing two U-shaped steels and a connecting steel block (12), and the connecting steel block (12) is welded to the top of the plug-in bodies at the upper parts of the gantry pillars 1 (2) and gantry pillars 2 (3); the upper ends of the plug-in bodies at the lower parts of the gantry pillars 1 (2) and gantry pillars 2 (3) are provided with connecting steel block receiving grooves (24), the plug-in bodies at the upper parts of the gantry pillars 1 (2) and gantry pillars 2 (3) can be inserted into the plug-in bodies at the lower parts of the gantry pillars 1 (2) and gantry pillars 2 (3), and the connecting steel block (12) can be seated in the connecting steel block receiving grooves (24); the number of positioning holes (8) provided in the plug-in bodies of the gantry pillars 1 (2) and gantry pillars 2 (3) is more than four; and a pillar handrail (9) is provided on the outer sides of the lower ends of the plug-in bodies of the gantry pillars 1 (2) and gantry pillars 2 (3).

4. The equipment hoisting device for narrow space as claimed in claim 1, characterized in that: The wheel body of the crane running wheel (10) is installed below the support base plate (14) via a wheel frame crane running wheel mounting bracket (10-1) and a wheel axle, and a speed reduction and torque increase mechanism (11) is installed on the wheel axle between the wheel body and the crane running wheel mounting bracket (10-1); the speed reduction and torque increase mechanism (11) comprises a planetary gear transmission and a speed change crank (11-5), the planetary gear transmission is installed on the wheel axle of the crane running wheel (10), and the connection end of the speed change crank (11-5) is fixed to the sun gear (11-3) in the planetary gear transmission.

5. The equipment hoisting device for narrow space as claimed in claim 4, characterized in that: The connection end of the speed change crank handle (11-5) passes through the upper part of the crane running wheel mounting bracket (10-1), and a ratchet wrench connector is also provided at the handle end of the speed change crank handle (11-5), and the ratchet wrench connector can be connected to a ratchet wrench (23).

6. The equipment hoisting device for narrow space as claimed in claim 5, characterized in that: The mounting bracket connecting shaft (10-2) of the crane running wheel (10) is arranged on the top of the crane running wheel mounting bracket (10-1) and passes through the supporting bottom plate (14) to be connected to the running direction regulator (15); the running direction regulator (15) is provided with a direction lock (15-1), a locking pin (15-2), a connecting screw sleeve (15-3) and an adjusting block (15-5), wherein: the outer periphery of the adjusting block (15-5) is provided with a direction adjusting hole (15-4); the adjusting block (15-5) is provided with a direction adjusting hole (15-5) and the adjusting block (15-5) is provided with a direction adjusting hole (15-4). ) is installed outside the mounting bracket connecting shaft (10-2); one end of the direction lock (15-1) is a connecting screw sleeve (15-3) and the other end is an adjustment handle; a locking pin (15-2) is arranged in a connecting plate body between the connecting screw sleeve (15-3) and the adjustment handle; the connecting screw sleeve (15-3) can be threadedly connected to the mounting bracket connecting shaft (10-2); the locking pin (15-2) can pass through the connecting plate body and be inserted into a direction adjustment hole (15-4) in the adjustment block (15-5).

7. The equipment hoisting device for narrow space as claimed in claim 6, characterized in that: The number of direction adjustment holes (15-4) in the adjustment block (15-5) is more than three.

8. A transfer vehicle for use in conjunction with the equipment lifting device for narrow spaces as claimed in any one of claims 1 to 7, comprising handrails (19), transfer vehicle running wheels (22) and a bottom plate, wherein: A device support frame composed of vertical plates is fixed on the bottom plate, gantry support frame placement frames (17) are welded on both sides of the device support frame, and a load-bearing beam guide groove (21) is fixed on the bottom plate between the vertical plates of the device support frame opposite to the handrail (19); the load-bearing crossbeam (1) of the disassembled equipment lifting device can be clamped in the load-bearing beam guide groove (21), and the plug-in body at the lower part of the gantry support frame 1 (2) and the gantry support frame 2 (3) and the rest of the equipment lifting device can be suspended on the gantry support frame placement frames (17) on both sides of the device support frame.

9. The transfer vehicle according to claim 8, characterized in that: A gantry support frame (17) welded to the upper part of the device carrier frame is provided with two frame plates, and both frame plates are plate bodies that are bent outward and upward; the height between the bottom of the gantry support frame (17) and the bottom plate is greater than the distance between the inner top of the supporting side plate (13) and the bottom surface of the crane running wheel (10).

10. The transfer vehicle according to claim 9, characterized in that: A horizontal plate with a load-bearing beam clamping groove (18) is welded between the tops of the two vertical plates of the device support frame, the load-bearing beam clamping groove (18) is parallel to the load-bearing beam guide groove (21), the width of the load-bearing beam clamping groove (18) is equal to or greater than the thickness of the load-bearing crossbeam (1) and is capable of clamping the load-bearing crossbeam (1) therein; A tool storage box (20) is fixed and installed between the rod body of the handrail (19) and the two vertical plates, and a non-slip pad is placed on the bottom of the tool storage box (20); the load-bearing beam guide groove (21) is a U-shaped groove body located between the device bearing frames and fixed on the bottom plate of the transfer vehicle.

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