Crane fixing device and crane

Abstract

The utility model provides a crane fixing device and a crane. A crane fixing device comprises a bottom pulling plate, a plurality of bottom pulling plate connecting bolts, a crane mounting support, a plurality of crane supporting arms, a plurality of supporting legs and a crane mounting platform, and the two ends of the bottom pulling plate are connected with the two ends of the crane mounting support through the bottom pulling plate connecting bolts. The plurality of crane supporting arms and the crane mounting platform are mounted on the crane mounting bracket, and the plurality of supporting legs are mounted on the plurality of crane supporting arms in a one-to-one correspondence manner. The simple and detachable crane can be arranged beside an electric electro-hydraulic actuating mechanism and a transmission device which need to be hoisted, so that the hoisting efficiency of maintenance and repair of equipment in the oil and gas industry is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas equipment hoisting, in particular to a crane fixing device and a crane. Background Art

[0002] The electric electro-hydraulic valves in the oil and gas transmission stations in the oil and gas industry are installed centrally. The maintenance personnel of the stations carry out the maintenance of the electric electro-hydraulic actuators and transmission devices on the inspection platform. Since the electric electro-hydraulic actuators are installed at a high position and the space of the inspection platform is limited, it is very inconvenient for the maintenance personnel to carry out their maintenance work.

[0003] Preventive maintenance of valve transmission boxes is an important part of the valve maintenance strategy in the oil and gas pipeline industry. For medium and large valves (DN250 and above), the transmission box and actuator are heavy due to the size of the valve (the weight of the DN250 valve transmission box in the oil transportation department where the project team is located is between 100-300kg).

[0004] To carry out preventive maintenance on the valve transmission box, it is necessary to disassemble the actuator and disassemble and reinstall the transmission box in sequence. Usually, the inspection platform is only set up on the operating surface of the actuator.

[0005] Existing hoisting technology for maintenance equipment: 1. During operation, personnel need to stand on the pipe near the valve and manually carry the heavy transmission box and actuator, which has a high risk of falling and injuring personnel, and equipment falling and hitting personnel. 2. The preventive maintenance of the transmission box of valves above DN250 is carried out by leasing a large crane, which increases the maintenance cost and time cost.

[0006] Therefore, how to arrange a simple and detachable crane next to the electric and electro-hydraulic actuators and transmission devices that need to be hoisted to improve the hoisting efficiency of equipment maintenance and repair in the oil and gas industry is a technical problem that needs to be solved urgently. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a crane fixing device and a crane in view of the deficiencies in the prior art.

[0008] The utility model provides a technical solution to the above-mentioned technical problems as follows: a crane fixing device, comprising: a bottom pull plate, multiple bottom pull plate connecting bolts, a crane mounting bracket, multiple crane support arms, multiple support legs, and a crane mounting platform, the two ends of the bottom pull plate are connected to the two ends of the crane mounting bracket through multiple bottom pull plate connecting bolts, multiple crane support arms and the crane mounting platform are all installed on the crane mounting bracket, and multiple support legs are installed one-to-one on the multiple crane support arms.

[0009] The beneficial effect of adopting the technical solution of the utility model is: by designing a simple and detachable crane that can be arranged next to the electric electro-hydraulic actuator and transmission device that need to be hoisted, the hoisting efficiency of equipment maintenance and repair in the oil and gas industry is improved. The small crane is installed on the inspection platform, and the related equipment is hoisted by the small crane, which can effectively solve the problems of difficult manual handling and high cost of renting cranes. The crane fixing device can fix the existing small crane on the inspection channel in the oil and gas pipeline station. When the hoisting equipment needs to be repaired and maintained, select a suitable inspection channel position, install the small crane fixing device on the inspection channel, and then complete the fixation through the connecting bolts at both ends and four adjustment supports. It can be used to replace manual handling and replace the rental crane for hoisting; when the hoisting work is completed, the small crane and the fixing device are removed, and the installation and disassembly of the small crane is very convenient, saving time and effort, and improving work efficiency. It is simple to make and easy to install, so it can be disassembled as needed, without damaging the operating platform and other equipment. It can be used repeatedly, which is suitable for the hoisting operation of small equipment such as electric and electro-hydraulic actuators in oil and gas pipeline stations.

[0010] Furthermore, a plurality of position adjustment holes for installing the bottom pull plate connecting bolts are provided on both sides of the bottom pull plate and the crane mounting bracket.

[0011] The beneficial effect of adopting the above further technical solution is that the screw holes at both ends can be adjusted according to the width of the inspection platform, ensuring that the crane mounting bracket can be installed on inspection platforms of different widths.

[0012] Furthermore, the support leg comprises: a support leg adjustment screw and a support plate, the support leg adjustment screw is installed on the crane support arm through threads, and the support plate is installed at the bottom of the support leg adjustment screw.

[0013] The beneficial effect of adopting the above further technical solution is: one end of the screw is hexagonal, and the height of the support leg is adjusted by turning the hexagonal screw to ensure that the crane bracket is stably and firmly installed on the inspection platform. Through high-strength bolts and multiple force adjustment supports, the crane can be firmly installed on the inspection platform, which can effectively prevent tipping and operate safely and reliably.

[0014] Furthermore, the bottom pull plate and the crane mounting bracket are both made of steel, the bottom pull plate and the crane mounting bracket are both rectangular plates, and the crane mounting platform is a square platform.

[0015] The beneficial effect of adopting the above further technical solution is that the bottom pull plate and the crane mounting bracket are both made of steel, which improves the load strength of the fixing device and improves the stability and reliability of the fixing device.

[0016] Furthermore, a plurality of crane support arms are located on both sides of the crane installation platform.

[0017] The beneficial effect of adopting the above further technical solution is that after the support plate is adjusted, the force balance of the crane mounting bracket is ensured.

[0018] Furthermore, the bottom pull plate is located at the bottom of the inspection platform, and the crane mounting bracket is located at the top of the inspection platform.

[0019] The beneficial effect of adopting the above-mentioned further technical solution is: the crane fixing device is installed on the inspection channel of the oil and gas pipeline station, and the two ends of the bottom pull plate are connected to the crane mounting bracket using the bottom pull plate connecting bolts to fix the bottom pull plate and the crane mounting bracket as a whole on the inspection platform.

[0020] Furthermore, footboards are provided on both sides of the inspection platform, and the crane mounting bracket is installed on the footboards.

[0021] The beneficial effects of adopting the above-mentioned further technical scheme are: select a suitable inspection platform on the inspection platform next to the electric electro-hydraulic actuator that needs to be hoisted in the oil and gas industry station, place the crane mounting bracket horizontally on the footboards on both sides of the inspection platform, and place the bottom pull plate on the steel frame position of the inspection platform from the bottom side of the inspection platform. Align the screw holes on both sides of the crane mounting bracket and the bottom pull plate, select the appropriate position adjustment hole, use the bottom pull plate connecting bolts to fix the bottom pull plate and the crane mounting bracket on the inspection platform, and tighten the bolts and nuts.

[0022] In addition, the utility model also provides a crane, including a crane fixing device described in any one of the above items, and also includes: a crane base plate, a crane main shaft and a rotating device, a crane main arm, and a crane jib. The crane base plate is installed on the crane mounting platform, the bottom of the crane main shaft and the rotating device is installed on the crane base plate, the crane main arm is installed on the top of the crane main shaft and the rotating device, and the crane jib is slidably installed on the crane main arm.

[0023] The beneficial effect of adopting the technical solution of the utility model is: by designing a simple and detachable crane that can be arranged next to the electric electro-hydraulic actuator and transmission device that need to be hoisted, the hoisting efficiency of equipment maintenance and repair in the oil and gas industry is improved. The small crane is installed on the inspection platform, and the related equipment is hoisted by the small crane, which can effectively solve the problems of difficult manual handling and high cost of renting cranes. The crane fixing device can fix the existing small crane on the inspection channel in the oil and gas pipeline station. When the hoisting equipment needs to be repaired and maintained, select a suitable inspection channel position, install the small crane fixing device on the inspection channel, and then complete the fixation through the connecting bolts at both ends and four adjustment supports. It can be used to replace manual handling and replace the rental crane for hoisting; when the hoisting work is completed, the small crane and the fixing device are removed, and the installation and disassembly of the small crane is very convenient, saving time and effort, and improving work efficiency. It is simple to make and easy to install, so it can be disassembled as needed, without damaging the operating platform and other equipment. It can be used repeatedly, which is suitable for the hoisting operation of small equipment such as electric and electro-hydraulic actuators in oil and gas pipeline stations. The crane can be flexibly turned through the crane main shaft and the rotating device. The crane is equipped with a rotating device for the boom. During hoisting, the boom is rotated according to the hoisting requirements to adjust the hoisting direction. The boom is composed of two sections, and the extension length of the boom is adjusted through the screw holes on the boom.

[0024] Furthermore, the crane base plate is mounted on the crane mounting platform via crane base connecting bolts.

[0025] The beneficial effect of adopting the above-mentioned further technical scheme is: the crane installation platform is provided with crane base connecting bolts, the crane is installed on the crane installation platform, the crane base connecting bolts are used to connect the crane installation platform with the crane base plate, and the crane base connecting bolts are tightened with a movable wrench to prevent the crane from shaking or tipping over, thereby completing the crane installation.

[0026] Furthermore, a plurality of adjustment holes are provided on the crane main arm and the crane jib.

[0027] The beneficial effect of adopting the above further technical solution is that the boom is composed of two sections, and the extension length of the boom can be adjusted through the screw holes on the boom. By adjusting the adjustment holes on the main boom and the small arm of the crane, the arm length of the crane can be adjusted to meet the hoisting requirements of objects at different distances.

[0028] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic structural diagram of a crane fixing device provided in an embodiment of the utility model.

[0030] Explanation of the figure numbers: 1. Bottom pull plate; 2. Bottom pull plate connecting bolts; 3. Crane mounting bracket; 4. Inspection channel; 5. Crane support arm; 6. Support leg; 7. Crane mounting platform; 8. Crane bottom plate; 9. Crane main shaft and rotating device; 10. Crane main arm; 11. Adjustment hole; 12. Crane jib. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] like Figure 1 As shown, an embodiment of the utility model provides a crane fixing device, including: a bottom pull plate 1, a plurality of bottom pull plate connecting bolts 2, a crane mounting bracket 3, a plurality of crane support arms 5, a plurality of support legs 6, and a crane mounting platform 7, the two ends of the bottom pull plate 1 are connected to the two ends of the crane mounting bracket 3 through the plurality of bottom pull plate connecting bolts 2, the plurality of crane support arms 5 and the crane mounting platform 7 are all installed on the crane mounting bracket 3, and the plurality of support legs 6 are installed one by one on the plurality of crane support arms 5.

[0033] The beneficial effect of adopting the technical solution of the utility model is: by designing a simple and detachable crane that can be arranged next to the electric electro-hydraulic actuator and transmission device that need to be hoisted, the hoisting efficiency of equipment maintenance and repair in the oil and gas industry is improved. The small crane is installed on the inspection platform, and the related equipment is hoisted by the small crane, which can effectively solve the problems of difficult manual handling and high cost of renting cranes. The crane fixing device can fix the existing small crane on the inspection channel in the oil and gas pipeline station. When the hoisting equipment needs to be repaired and maintained, select a suitable inspection channel position, install the small crane fixing device on the inspection channel, and then complete the fixation through the connecting bolts at both ends and four adjustment supports. It can be used to replace manual handling and replace the rental crane for hoisting; when the hoisting work is completed, the small crane and the fixing device are removed, and the installation and disassembly of the small crane is very convenient, saving time and effort, and improving work efficiency. It is simple to make and easy to install, so it can be disassembled as needed, without damaging the operating platform and other equipment. It can be used repeatedly, which is suitable for the hoisting operation of small equipment such as electric and electro-hydraulic actuators in oil and gas pipeline stations.

[0034] A crane fixing device provided by an embodiment of the utility model can be a small crane fixing device, so as to solve the difficulties that existing equipment is difficult to carry only by manpower, large cranes are expensive and difficult to operate, and it is difficult to efficiently complete the maintenance of electric electro-hydraulic actuators and other equipment in the oil and gas industry; if a small crane (crane) is installed on the inspection platform and related equipment is hoisted by the small crane, the problems of manual transportation difficulty and high cost of renting a crane can be effectively solved.

[0035] A crane fixing device provided by an embodiment of the utility model includes an inspection platform, the inspection platform is provided with an installation bracket platform (crane installation platform 7) with a small crane on it, the installation bracket platform is connected to the bottom pull plate 1 at the lower part of the inspection platform, and the crane installation bracket 3 is installed on the inspection platform, and a fixed crane is provided on the crane installation bracket 3.

[0036] like Figure 1 As shown, further, the bottom pull plate 1 is a rectangular plate made of high-strength steel, and a plurality of spaced screw holes are provided at both ends of the bottom pull plate 1 .

[0037] like Figure 1 As shown, further, the inspection platform is an inspection channel 4 made of I-beams, and footboards are arranged on both sides of the inspection platform. The boards are thin and do not bear pressure.

[0038] like Figure 1 As shown, further, the crane mounting bracket 3 is a rectangular plate bracket made of high-strength steel, and a plurality of spaced screw holes are arranged at both ends of the crane mounting bracket 3. A square platform (crane mounting platform 7) is arranged in the middle of the crane mounting bracket 3, and four supporting legs (supporting legs 6) are arranged on both sides of the square platform.

[0039] like Figure 1 As shown, further, screws (bottom pull plate connecting bolts 2) are used at both ends of the bottom pull plate 1 and the crane mounting bracket 3 to fix the crane mounting bracket 3 on the inspection platform, and the screw holes (position adjustment holes) at both ends can be adjusted according to the width of the inspection platform to ensure that the crane mounting bracket 3 can be installed on inspection platforms of different widths.

[0040] like Figure 1 As shown, further, the support leg (support leg 6) is composed of a support plate (support disc) and a threaded screw (support leg adjustment screw), one end of the screw is hexagonal, and the hexagonal screw is rotated to adjust the height of the support leg to ensure that the crane bracket is stably and firmly installed on the inspection platform.

[0041] like Figure 1As shown, further, four screw holes are provided at the four corners of the square platform (crane mounting platform 7) of the crane bracket (crane mounting bracket 3), and the four screw holes of the crane mounting base plate (crane base plate 8) are consistent in size with the four screw holes of the square platform (crane mounting platform 7), and the crane is firmly mounted on the crane bracket (crane mounting bracket 3) by bolts.

[0042] like Figure 1 As shown, further, the crane is provided with a rotating device for the boom (crane main shaft and rotating device 9), and the boom is rotated according to the hoisting requirements to adjust the hoisting direction during hoisting.

[0043] like Figure 1 As shown, further, the boom is composed of two sections, and the extension length of the boom is adjusted through the screw holes (adjustment holes 11) on the boom.

[0044] The beneficial effects achieved by the utility model are:

[0045] (1) The crane fixing device provided in the embodiment of the utility model can fix the existing small crane on the inspection channel in the oil and gas pipeline station. When the lifting equipment needs to be repaired and maintained, a suitable inspection channel position is selected, and the small crane fixing device (crane fixing device) is installed on the inspection channel. Then, the fixing is completed by connecting bolts at both ends and four adjustment supports. It can be used to replace manual handling and replace the rental of cranes for lifting. When the lifting work is completed, the small crane and the fixing device are removed. It is very convenient to install and disassemble the small crane, which saves time and effort and improves work efficiency.

[0046] (2) The small crane fixing device forms an integral component with the small crane. Through high-strength bolts and four force adjustment supports, the crane can be firmly installed on the inspection platform, which can effectively prevent tipping and ensure safe and reliable operation.

[0047] (3) The small crane fixing device is simple to make and easy to install. The small crane can be purchased on the market at a low cost. It can be dismantled when used without damaging the operating platform and other equipment. It can be used repeatedly and can be applied to inspection platforms of various sizes. It is very suitable for the lifting of small equipment such as electric and electro-hydraulic actuators in oil and gas pipeline stations.

[0048] like Figure 1 As shown, further, both sides of the bottom pull plate 1 and the crane mounting bracket 3 are provided with a plurality of position adjustment holes for installing the bottom pull plate connecting bolts 2 .

[0049] The beneficial effect of adopting the above further technical solution is that the screw holes at both ends can be adjusted according to the width of the inspection platform, ensuring that the crane mounting bracket can be installed on inspection platforms of different widths.

[0050] like Figure 1 As shown, further, the support leg 6 includes: a support leg adjustment screw and a support plate, the support leg adjustment screw is installed on the crane support arm 5 through a thread, and the support plate is installed at the bottom of the support leg adjustment screw.

[0051] The beneficial effect of adopting the above further technical solution is: one end of the screw is hexagonal, and the height of the support leg is adjusted by turning the hexagonal screw to ensure that the crane bracket is stably and firmly installed on the inspection platform. Through high-strength bolts and multiple force adjustment supports, the crane can be firmly installed on the inspection platform, which can effectively prevent tipping and operate safely and reliably.

[0052] like Figure 1 As shown, further, the bottom pull plate 1 and the crane mounting bracket 3 are both made of steel, the bottom pull plate 1 and the crane mounting bracket 3 are both rectangular plates, and the crane mounting platform 7 is a square platform.

[0053] The beneficial effect of adopting the above further technical solution is that the bottom pull plate and the crane mounting bracket are both made of steel, which improves the load strength of the fixing device and improves the stability and reliability of the fixing device.

[0054] like Figure 1 As shown, further, a plurality of crane support arms 5 are located on both sides of the crane mounting platform 7 .

[0055] The beneficial effect of adopting the above further technical solution is that after the support plate is adjusted, the force balance of the crane mounting bracket is ensured.

[0056] like Figure 1 As shown, further, the bottom pull plate 1 is located at the bottom of the inspection platform, and the crane mounting bracket 3 is located at the top of the inspection platform.

[0057] The beneficial effect of adopting the above-mentioned further technical solution is: the crane fixing device is installed on the inspection channel of the oil and gas pipeline station, and the two ends of the bottom pull plate are connected to the crane mounting bracket using the bottom pull plate connecting bolts to fix the bottom pull plate and the crane mounting bracket as a whole on the inspection platform.

[0058] like Figure 1 As shown, further, footboards are provided on both sides of the inspection platform, and the crane mounting bracket 3 is mounted on the footboards.

[0059] The beneficial effects of adopting the above-mentioned further technical scheme are: select a suitable inspection platform on the inspection platform next to the electric electro-hydraulic actuator that needs to be hoisted in the oil and gas industry station, place the crane mounting bracket horizontally on the footboards on both sides of the inspection platform, and place the bottom pull plate on the steel frame position of the inspection platform from the bottom side of the inspection platform. Align the screw holes on both sides of the crane mounting bracket and the bottom pull plate, select the appropriate position adjustment hole, use the bottom pull plate connecting bolts to fix the bottom pull plate and the crane mounting bracket on the inspection platform, and tighten the bolts and nuts.

[0060] The embodiment of the utility model provides a crane fixing device, including a bottom pull plate 1, a crane mounting bracket 3 provided with a crane mounting platform 7 and a crane bracket force-bearing support leg 6, and a small crane is installed on the crane mounting platform 7. The utility model can fix the existing small crane on the inspection platform of the oil and gas industry to replace the disadvantages of difficult manual handling and high cost of large cranes to improve work efficiency; after the lifting work is completed, the small crane and the small crane fixing device can be disassembled, and the installation and disassembly of the small crane is very convenient and applicable, which fully meets the lifting operation of small equipment not limited to the oil and gas transmission field station in the oil and gas industry.

[0061] A crane fixing device provided in an embodiment of the utility model can be a small crane fixing device, including a bottom pull plate 1, a crane mounting bracket 3, and an inspection platform. The bottom pull plate 1 and the crane mounting bracket 3 are fixed on the inspection platform using screws (bottom pull plate connecting bolts 2).

[0062] The bottom pull plate 1 is made of high-strength steel and has screw holes (position adjustment holes) at both ends.

[0063] The crane mounting bracket 3 is made of high-strength steel, with screw holes at both ends, which are consistent with the screw holes of the bottom pull plate 1, a crane mounting platform 7 is provided in the middle, and load-bearing arms (crane support arms 5) are provided on both sides of the crane mounting platform 7.

[0064] The crane installation platform 7 is provided with screw holes, and the crane is installed and connected to the crane installation platform 7 using bolts (crane base connecting bolts).

[0065] The force-bearing arm is composed of an adjusting screw and a supporting plate. The installation condition of the crane mounting bracket 3 can be adjusted by adjusting the height of the supporting plate.

[0066] like Figure 1As shown, in addition, the utility model also provides a crane, including a crane fixing device described in any one of the above items, and also includes: a crane base plate 8, a crane main shaft and a rotating device 9, a crane main arm 10, and a crane jib 12. The crane base plate 8 is installed on the crane mounting platform 7, the bottom of the crane main shaft and the rotating device 9 is installed on the crane base plate 8, the crane main arm 10 is installed on the top of the crane main shaft and the rotating device 9, and the crane jib 12 is slidably installed on the crane main arm 10.

[0067] The beneficial effect of adopting the technical solution of the utility model is: by designing a simple and detachable crane that can be arranged next to the electric electro-hydraulic actuator and transmission device that need to be hoisted, the hoisting efficiency of equipment maintenance and repair in the oil and gas industry is improved. The small crane is installed on the inspection platform, and the related equipment is hoisted by the small crane, which can effectively solve the problems of difficult manual handling and high cost of renting cranes. The crane fixing device can fix the existing small crane on the inspection channel in the oil and gas pipeline station. When the hoisting equipment needs to be repaired and maintained, select a suitable inspection channel position, install the small crane fixing device on the inspection channel, and then complete the fixation through the connecting bolts at both ends and four adjustment supports. It can be used to replace manual handling and replace the rental crane for hoisting; when the hoisting work is completed, the small crane and the fixing device are removed, and the installation and disassembly of the small crane is very convenient, saving time and effort, and improving work efficiency. It is simple to make and easy to install, so it can be disassembled as needed, without damaging the operating platform and other equipment. It can be used repeatedly, which is suitable for the hoisting operation of small equipment such as electric and electro-hydraulic actuators in oil and gas pipeline stations. The crane can be flexibly turned through the crane main shaft and the rotating device. The crane is equipped with a rotating device for the boom. During hoisting, the boom is rotated according to the hoisting requirements to adjust the hoisting direction. The boom is composed of two sections, and the extension length of the boom is adjusted through the screw holes on the boom.

[0068] like Figure 1 As shown, further, the crane base plate 8 is installed on the crane mounting platform 7 through crane base connecting bolts.

[0069] The beneficial effect of adopting the above-mentioned further technical scheme is: the crane installation platform is provided with crane base connecting bolts, the crane is installed on the crane installation platform, the crane base connecting bolts are used to connect the crane installation platform with the crane base plate, and the crane base connecting bolts are tightened with a movable wrench to prevent the crane from shaking or tipping over, thereby completing the crane installation.

[0070] like Figure 1 As shown, further, a plurality of adjustment holes 11 are provided on the crane main arm 10 and the crane jib 12 .

[0071] The beneficial effect of adopting the above further technical solution is that the boom is composed of two sections, and the extension length of the boom can be adjusted through the screw holes on the boom. By adjusting the adjustment holes on the main boom and the small arm of the crane, the arm length of the crane can be adjusted to meet the hoisting requirements of objects at different distances.

[0072] The embodiment of the utility model provides a small crane fixing device (crane fixing device), which is installed on the inspection channel of the oil and gas pipeline station. The two ends of the bottom pull plate 1 are connected to the crane mounting bracket 3 using the bottom pull plate connecting bolts 2. The bottom pull plate 1 and the crane mounting bracket 3 are fixed as a whole on the inspection platform. The crane has several components. The crane bottom plate 8 is connected to the crane mounting platform 7 using connecting bolts. The crane can be flexibly turned through the crane main shaft and the rotating device 9. The structure of the finished crane is an existing product, such as a small manual hoist and a small hydraulic crane.

[0073] Select a suitable inspection platform on the inspection platform next to the electric electro-hydraulic actuator that needs to be hoisted in the oil and gas industry station, place the crane mounting bracket 3 horizontally on the footboards on both sides of the inspection platform, and place the bottom pull plate 1 on the steel frame of the inspection platform from the bottom side of the inspection platform. Align the screw holes on both sides of the crane mounting bracket 3 and the bottom pull plate 1, select the appropriate position adjustment hole, use the bottom pull plate connecting bolts 2 to fix the bottom pull plate 1 and the crane mounting bracket 3 on the inspection platform, and tighten the bolts and nuts.

[0074] Four load-bearing crane support arms 5 are arranged on the crane mounting bracket 3, a support leg 6 is installed on each support arm 5, and a support plate is installed on the lower side of the support leg 6. After the installation of the crane mounting bracket 3 is completed, use tools such as a movable wrench to adjust the support leg adjustment nut (support leg adjustment screw) so that the support plate is supported on the inspection platform. After the adjustment of the four support plates is completed, the force balance of the crane mounting bracket is guaranteed.

[0075] A square crane mounting platform 7 is set on the crane mounting bracket 3. The crane mounting platform 7 is provided with crane base connecting bolts. The crane is installed on the crane mounting platform 7. The crane base connecting bolts are used to connect the crane mounting platform 7 to the crane base plate 8. The crane base connecting bolts are tightened with an adjustable wrench to prevent the crane from shaking or tipping over, thereby completing the crane installation.

[0076] When hoisting objects, the hoisting direction is adjusted by relying on the crane main shaft and the rotating device 9 to achieve 360-degree hoisting. By adjusting the adjustment holes 11 on the crane main arm 10 and the crane arm 12, the arm length of the crane can be adjusted to meet the hoisting requirements of objects at different distances.

[0077] After the hoisting is completed, loosen the crane base connection bolts in sequence, remove the crane, loosen the crane mounting bracket 3 and the bottom pull plate connection bolts 2 of the bottom pull plate 1, remove the small crane fixing device, and the dismantling of the entire device can be completed.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A crane fixing device, characterized in that: include: A bottom pull plate (1), a plurality of bottom pull plate connecting bolts (2), a crane mounting bracket (3), a plurality of crane support arms (5), a plurality of support legs (6), and a crane mounting platform (7), wherein the two ends of the bottom pull plate (1) are connected to the two ends of the crane mounting bracket (3) via the plurality of bottom pull plate connecting bolts (2), the plurality of crane support arms (5) and the crane mounting platform (7) are all mounted on the crane mounting bracket (3), and the plurality of support legs (6) are mounted one-to-one on the plurality of crane support arms (5).

2. A crane fixing device according to claim 1, characterized in that: Both sides of the bottom pull plate (1) and the crane mounting bracket (3) are provided with a plurality of position adjustment holes for mounting the bottom pull plate connecting bolts (2).

3. A crane fixing device according to claim 1, characterized in that: The support leg (6) comprises: a support leg adjustment screw and a support plate. The support leg adjustment screw is mounted on the crane support arm (5) via a thread, and the support plate is mounted on the bottom of the support leg adjustment screw.

4. A crane fixing device according to claim 1, characterized in that: The bottom pull plate (1) and the crane mounting bracket (3) are both made of steel; the bottom pull plate (1) and the crane mounting bracket (3) are both rectangular plates; and the crane mounting platform (7) is a square platform.

5. A crane fixing device according to claim 1, characterized in that: A plurality of crane support arms (5) are located on both sides of the crane installation platform (7).

6. A crane fixing device according to claim 1, characterized in that: The bottom pull plate (1) is located at the bottom of the inspection platform, and the crane mounting bracket (3) is located at the top of the inspection platform.

7. A crane fixing device according to claim 6, characterized in that: Footboards are provided on both sides of the inspection platform, and the crane mounting bracket (3) is mounted on the footboards.

8. A crane, characterized in that: A crane fixing device comprising any one of claims 1 to 7, further comprising: a crane base plate (8), a crane main shaft and a rotating device (9), a crane main arm (10), and a crane jib (12), wherein the crane base plate (8) is mounted on a crane mounting platform (7), the bottom of the crane main shaft and the rotating device (9) is mounted on the crane base plate (8), the crane main arm (10) is mounted on the top of the crane main shaft and the rotating device (9), and the crane jib (12) is slidably mounted on the crane main arm (10).

9. A crane according to claim 8, characterized in that: The crane base plate (8) is mounted on the crane mounting platform (7) via crane base connecting bolts.

10. A crane according to claim 8, characterized in that: The crane main arm (10) and the crane jib (12) are both provided with a plurality of adjustment holes (11).

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