Heavy object moving equipment for narrow and small space

Abstract

The utility model provides a heavy object moving device for a narrow space, which is used for solving the problems that a connecting cable and an air duct system need to be dismantled when a magnetic device and a heavy module in a test power supply are replaced in the prior art, and lifting moving devices such as a forklift and a stacker cannot be accommodated in the installation space of power supply equipment. And foundation moving equipment needs to be dismantled to an open area to implement replacement and upgrading. The heavy object moving equipment comprises the external support, the internal support and the movable lifting assembly, the ultra-thin jack is arranged in the bearing wheel bracket of the movable lifting assembly, and through the combination of the external support, the internal support and the movable lifting assembly, the heavy object can be moved. The problem that heavy objects are difficult to move and replace in a narrow space is effectively solved under the condition that lines, water paths, air paths and equipment layout of large equipment which is installed in place are not adjusted, and the device is particularly suitable for moving and replacing heavy modules such as transformers and electric reactors in the large equipment which is installed and debugged in place.

Description

TECHNICAL FIELD

[0001] The utility model relates to heavy object moving equipment, especially heavy object moving equipment for narrow space. BACKGROUND

[0002] With the vigorous development of the state to new energy industry, test power supply also has obtained the rapid development. A large number of magnetic devices, heavy modules are used in test power supply, so that magnetic devices and heavy modules need to be replaced and upgraded frequently when test power supply is maintained after sale. Because the test power supply equipment is installed in place, the involved circuit, waterway, air duct system are connected, and the existing method for replacing the magnetic devices and heavy modules in test power supply needs to remove the connecting cable and air duct system, and when the lifting moving equipment such as forklift and stacker cannot be accommodated in the installation space of power supply equipment, the foundation moving equipment needs to be removed to open space to implement replacement and upgrading. The replacement method is time-consuming and laborious, which greatly increases the maintenance cost and prolongs the construction period. How to upgrade and transform the magnetic devices and heavy modules in test power supply equipment without adjusting the installed test power supply equipment becomes a difficult problem to be solved in the industry. SUMMARY

[0003] The utility model aims at solving the technical problem that the existing method for replacing the magnetic devices and heavy modules in test power supply needs to remove the connecting cable and air duct system, and when the lifting moving equipment such as forklift and stacker cannot be accommodated in the installation space of power supply equipment, the foundation moving equipment needs to be removed to open space to implement replacement and upgrading, and provides heavy object moving equipment for narrow space.

[0004] In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

[0005] Heavy object moving equipment for narrow space, characterized in that it comprises an external support, an internal support, a moving lifting assembly, two limiting pieces and two connecting pieces.

[0006] The external support comprises a pair of first sliding rails arranged in parallel, two first limiting blocks arranged outside the two first sliding rails respectively, a support seat arranged at the bottom of the two first sliding rails, and a plurality of height-adjustable foot cups arranged at the bottom of the support seat.

[0007] The internal support comprises a pair of second sliding rails arranged in parallel, two second limiting blocks arranged outside the two second sliding rails respectively, a plurality of groups of supporting feet arranged at the bottom of the two second sliding rails, and a plurality of groups of fixing pieces; the fixing pieces are used to realize the fixation of the supporting feet and the heavy object cabinet body.

[0008] The mobile lifting assembly comprises two bearing wheel brackets arranged in parallel, at least two ultra-thin jacks arranged in the radial direction in each bearing wheel bracket, two covers respectively buckled on the two bearing wheel brackets, at least four groups of bearing wheels arranged at the bottom of the two bearing wheel brackets, and at least two connecting plates connected between the two bearing wheel brackets; two groups of bearing wheels are arranged opposite to each other at the bottom of the two bearing wheel brackets; first hydraulic pipe through holes are formed on the bottom plate of the bearing wheel bracket corresponding to the positions of the ultra-thin jacks, so that the jack hydraulic pipes pass through;

[0009] Vertical guide holes are respectively formed on the two sides of the bearing wheel bracket, guide pins are arranged on the cover corresponding to the positions of the guide holes, so that the cover moves in the vertical direction along the guide holes with the ultra-thin jacks;

[0010] The lengths of the first slide rail, the second slide rail and the bearing wheel bracket are the same, the distance between the inner side walls of the two first limiting blocks is equal to the distance between the inner side walls of the two second limiting blocks, and is adapted to the outer side distance of the two groups of bearing wheel brackets arranged opposite to each other, so that the groups of bearing wheels slide on the pair of first slide rails or the pair of second slide rails, and are left-right limited by the two first limiting blocks or the two second limiting blocks;

[0011] The two limiting members are respectively arranged at the two ends of the mobile lifting assembly, and the upper ends of the limiting members are transversely connected to the same side ends of the two covers, and the lower ends are connected to the ends of the support seat; the two connecting members are respectively used to fixedly connect the ends of the two first slide rails and the corresponding second slide rails.

[0012] Further, the support seat is of a frame structure;

[0013] The upper end of the foot cup is provided as a threaded column, and the support seat is provided with through holes corresponding to the positions of the foot cups; the threaded column at the upper end of the foot cup passes through the through holes at the corresponding positions of the support seat, and then is locked at different heights by adjusting nuts;

[0014] The lower end of the foot is provided with an everted edge, and the fixing member is arranged on the everted edge to be fixedly connected with the heavy object cabinet body.

[0015] Further, the support seat is provided with second hydraulic pipe through holes corresponding to the positions of the ultra-thin jacks in the mobile lifting assembly, so that the jack hydraulic pipes pass through when the mobile lifting assembly is located on the external support.

[0016] Further, the cover comprises a top plate and side plates connected to the two sides of the top plate;

[0017] The bearing wheel bracket comprises a bottom plate and side plates connected to the two sides of the bottom plate;

[0018] The two side plates of the cover are located outside the two side plates of the bearing wheel bracket, and are used to realize the buckling of the cover and the bearing wheel bracket.

[0019] The guide holes are arranged on the positions close to the end of the two side plates of the bearing wheel bracket, and the positions corresponding to the guide holes on the two side plates of the cover are respectively provided with guide pin mounting holes; the guide pins are mounted in the guide pin mounting holes, and are used to cooperate with the guide holes on the bearing wheel bracket.

[0020] Further, a reinforcing rib is arranged on the inner side wall of the top plate of the cover.

[0021] A plurality of anti-scratching pads are arranged on the outer side walls of the two side plates of the bearing wheel bracket.

[0022] Further, at least two limiting discs are arranged on the bottom plate of the bearing wheel bracket in the radial direction, and the ultra-thin jack is placed in the corresponding limiting disc.

[0023] Further, the bearing wheel is welded to the bottom of the bearing wheel bracket through a plurality of plug welding holes.

[0024] Further, first connecting holes are arranged on the two ends of the cover, and second connecting holes are arranged on the upper surface of the support seat close to the end.

[0025] The limiting member is fixedly connected with the cover and the support seat through the first connecting holes and the second connecting holes.

[0026] Further, the number of the foot cups is eight, and two foot cups in each group are arranged on the four corner positions of the bottom of the support seat in a diagonal manner.

[0027] The number of the supporting legs and the fixing members is eight, and two supporting legs in each group are arranged on the bottom of the two second sliding rails.

[0028] The number of the bearing wheels is four, and two bearing wheels in each group are welded to the bottom of the two bearing wheel brackets.

[0029] The number of the ultra-thin jacks in each bearing wheel bracket is two.

[0030] The number of the connecting plates is two, and the two ends of the connecting plates are fixedly connected with the two bearing wheel brackets on the two sides through corresponding welding nuts and bolts.

[0031] Further, the first sliding rail and the support seat in the outer support are a welded integral part.

[0032] The second sliding rail, the supporting leg and the fixing member in the inner support are a welded integral part.

[0033] The bearing wheel bracket, the bearing wheel, the anti-scratching base plate and the limiting disc in the mobile lifting assembly are a welded integral piece.

[0034] The utility model discloses compared with prior art beneficial effect is:

[0035] 1, the heavy object moving equipment for narrow space provided by the utility model, innovatively through the cooperation of external support, internal support and mobile lifting assembly, under the condition that the line, waterway, air path and equipment layout of the large equipment that has been installed in place are not adjusted, effectively solve the problem of heavy object moving replacement difficulty in narrow space, especially applicable to the moving replacement of heavy module such as transformer and reactor when large equipment on-site upgrading or after-sales guarantee is installed and debugged in place.

[0036] 2, the heavy object moving equipment for narrow space provided by the utility model can effectively shorten the construction period, improve the after-sales efficiency, reduce the customer equipment downtime; simultaneously, the cost required for user upgrading and after-sales maintenance is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is the structural schematic drawing of the heavy object moving equipment for narrow space of the utility model embodiment installed on the cabinet body of heavy object to be moved;

[0038] Figure 2 It is the structural schematic drawing of external support in the embodiment of the utility model;

[0039] Figure 3 It is the structural schematic drawing of internal support in the embodiment of the utility model;

[0040] Figure 4 It is the structural schematic drawing of mobile lifting assembly in the embodiment of the utility model;

[0041] Figure 5 It is the explosion map of Figure 4

[0042] Figure 6 It is the structural schematic drawing of cover in the mobile lifting assembly of the embodiment of the utility model;

[0043] Figure 7 It is the structural schematic drawing of bearing wheel bracket and bearing wheel in the mobile lifting assembly of the embodiment of the utility model;

[0044] Figure 8 It is the schematic drawing of moving heavy object in the equipment of narrow space using the heavy object moving equipment of the embodiment of the utility model;

[0045] Figure 9 It is the schematic drawing of internal support fixedly installed in the heavy object equipment cabinet body in the embodiment of the utility model; ​

[0046] Figure 10 It is a schematic view that the ultra-thin jack of the utility model is used to lift heavy objects to separate from the installation surface;

[0047] Figure 11 It is a schematic view that the moving lifting assembly of the utility model embodiment is used to load heavy objects and moves to the external support.

[0048] Specific reference signs are:

[0049] 1-external support, 11-first slide rail, 12-first limit block, 13-support seat, 14-foot cup, 15-first hydraulic pipe via hole, 16-adjusting nut;

[0050] 2-internal support, 21-second slide rail, 22-second limit block, 23-supporting leg, 24-fixing piece;

[0051] 3-moving lifting assembly, 31-cover, 310-first connecting hole, 311-guide pin, 312-reinforcing rib, 313-guide pin mounting hole, 314-welding nut, 315-first hydraulic pipe via hole, 32-ultra-thin jack, 33-guide hole, 34-bearing wheel, 35-connecting plate, 36-anti-scratching pad plate, 37-bearing wheel bracket, 38-plug welding hole, 39-limiting disc;

[0052] 4-limiting piece; 5-connecting piece; 6-heavy object; 7-equipment cabinet; 8-heavy object moving equipment. DETAILED DESCRIPTION

[0053] In order to make the advantages and characteristics of the utility model more clear, the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0054] As Figure 1 shown, a heavy object moving equipment for narrow space is used to move the heavy object 6 in the equipment cabinet 7 of the narrow space, which comprises an external support 1, an internal support 2, a moving lifting assembly 3, two limiting pieces 4 and two connecting pieces 5.

[0055] As Figure 2 shown, the external support 1 comprises a pair of first slide rails 11 arranged in parallel, two first limit blocks 12 arranged outside the two first slide rails 11 respectively, a support seat 13 arranged at the bottom of the two first slide rails 11 and eight foot cups 14 arranged at the bottom of the support seat 13. The support seat 13 is of a frame type structure, and the eight foot cups 14 are arranged in two groups at four corner positions of the bottom of the support seat 13, and the two foot cups 14 in each group are arranged obliquely at the bottom of the support seat 13, which is used to realize stable support.

[0056] The height of the foot cups 14 is adjustable. Specifically, the upper end of each foot cup 14 is provided as a threaded column, and the support seat 13 is provided with a through hole corresponding to each foot cup 14. The threaded column of the upper end of each foot cup 14 passes through the through hole corresponding to the foot cup 14 on the support seat 13, and then is locked at different heights by adjusting the nut 16 to match the replacement of heavy objects at different heights.

[0057] Preferably, the first sliding rail 11 and the support seat 13 in the outer support 1 are a welded integral part, and the eight foot cups 14 need to be exploded at the same height during installation.

[0058] As shown in Figure 3 The inner support 2 includes a pair of second sliding rails 21 arranged in parallel, two second limiting blocks 22 arranged outside the two second sliding rails 21 respectively, eight feet 23 arranged at the bottom of the two second sliding rails 21, and eight fixing members 24.

[0059] Four feet 23 are arranged at the two ends of the bottom of one second sliding rail 21 in pairs, and the other four feet 23 are arranged at the two ends of the bottom of the other second sliding rail 21 in pairs. The arrangement of two feet 23 at the two ends of each second sliding rail 21 can meet the installation of two conventional cabinet sizes.

[0060] The lower end of each foot 23 is provided with an outward turning edge, and the eight fixing members 24 are arranged on the outward turning edges of the corresponding feet 23. The corresponding positions of the fixing members 24 and the outward turning edges of the feet 23 are provided with through holes, respectively, for screwing the fixing screws through the through holes to be screwed with the cabinet to be moved, thereby realizing the fixed connection between the inner support 2 and the cabinet to be moved.

[0061] Preferably, the second sliding rail 21, the feet 23, and the fixing members 24 in the inner support 2 are a welded integral part.

[0062] As shown in Figures 4-7 The moving and lifting assembly 3 includes two bearing wheel brackets 37, four ultra-thin jacks 32, two covers 31, four bearing wheels 34, and two connecting plates 35. The bearing wheel bracket 37 includes a bottom plate and side plates connected to the two sides of the bottom plate, and two limiting discs 39 are arranged on the bottom plate of each bearing wheel bracket 37 in the radial direction. The two bearing wheel brackets 37 are arranged in parallel, and the four ultra-thin jacks 32 are placed in the corresponding limiting discs 39 in the two bearing wheel brackets 37.

[0063] The cover 31 comprises a top plate and side plates connected on both sides of the top plate, the cover 31 is buckled on the bearing wheel bracket 37, and the side plates on both sides of the cover 31 are located outside the side plates on both sides of the bearing wheel bracket 37. The vertical guide holes 33 are oppositely arranged on the positions close to the end portions of the side plates on both sides of the bearing wheel bracket 37, the guide pin mounting holes 313 are arranged on the positions corresponding to the guide holes 33 on the side plates on both sides of the cover 31, the guide pins 311 are arranged in the guide pin mounting holes 313 respectively, the guide pins 311 are matched with the guide holes 33 on the bearing wheel bracket 37, and the cover 31 is used for moving along the guide holes 33 in the vertical direction with the ultra-thin jack 32. The first hydraulic pipe through holes 315 are arranged on the bottom plate of the bearing wheel bracket 37 and correspond to the positions of the ultra-thin jacks 32, and are used for passing the hydraulic pipes of the jacks and providing working hydraulic pressure for the ultra-thin jacks 32. It should be noted that when the ultra-thin jacks 32 are placed in the limiting disc 39, the hydraulic pipe interfaces of the ultra-thin jacks 32 need to be directed to the positions of the first hydraulic pipe through holes 315.

[0064] In order to improve the bearing capacity of the mobile lifting assembly 3, the reinforcing ribs 312 are arranged on the inner side walls of the top plate of the cover 31. In the embodiment, a plurality of anti-scratching pad plates 36 are arranged on the outer side walls of the side plates on both sides of the bearing wheel bracket 37 respectively, which are used for preventing the side plates on both sides of the cover 31 from being scratched by the side plates on both sides of the bearing wheel bracket 37 when moving in the vertical direction.

[0065] The four bearing wheels 34 are oppositely welded on the bottom ends of the two bearing wheel brackets 37. Specifically, a plurality of plug welding holes 38 are arranged on the bottom plate of the bearing wheel bracket 37 and correspond to the positions of the bearing wheels 34, and are used for welding the bearing wheels 34 to the bottom of the bearing wheel bracket 37 through the plug welding holes 38. The bearing wheels 34 in the utility model can be matched according to the weight of the heavy object. The two connecting plates 35 are fixedly connected on the bearing wheel brackets 37 on both sides through corresponding welding nuts 314 and bolts, which are used for realizing the fixed connection between the two bearing wheel brackets 37.

[0066] Preferably, the bearing wheel bracket 37, the bearing wheel 34, the anti-scratching pad plate 36 and the limiting disc 39 in the mobile lifting assembly 3 are welded as an integral piece.

[0067] The lengths of the first sliding rail 11, the second sliding rail 21 and the bearing wheel bracket 37 are the same, the interval between the inner side walls of the two first limiting blocks 12 is equal to the interval between the inner side walls of the two second limiting blocks 22, and is matched with the outer side interval of the two groups of bearing wheel brackets 37 arranged oppositely, which are used for enabling the plurality of groups of bearing wheels 34 to slide on a pair of first sliding rails 11 or a pair of second sliding rails 21, and are left-right limited by the two first limiting blocks 12 or the two second limiting blocks 22.

[0068] The cover 31 has a first connecting hole 310 at both ends, and the bracket 13 has a second connecting hole at the upper surface near both ends. The left and right ends of one limiting member 4 are fixedly connected to the two first connecting holes 310 at one end of the two covers 31, and the left and right ends of the other limiting member 4 are fixedly connected to the two first connecting holes 310 at the other end of the two covers 31. The lower ends of the two limiting members 4 extend out and are fixedly connected to the second connecting holes at both ends of the bracket 13. This is used to limit the movement of the lifting assembly 3 and the load on it when the lifting assembly 3 slides onto the first slide rail 11 of the outer bracket 1, so as to prevent the lifting assembly 3 or the load from falling.

[0069] Two connectors 5 are used to fix the ends of the two first slide rails 11 to the ends of the corresponding second slide rails 21. At the same time, the support base 13 is provided with second hydraulic pipe through holes 15 at the positions of each ultra-thin jack 32 in the movable lifting assembly 3, so that the hydraulic pipes of the jacks can pass through when the movable lifting assembly 3 is located on the external support 1.

[0070] The quantities of the foot cup 14, support leg 23, fixing part 24, bearing wheel 34, ultra-thin jack 32, and connecting plate 35 in this utility model can be adaptively adjusted according to the specific site conditions and the weight of the load.

[0071] The heavy object moving device of this utility model is used for 8 pairs of objects. Figure 8 The method for moving heavy objects 6 within the confined space of the equipment cabinet 7 shown is as follows:

[0072] First, prepare the necessary tools for disassembly, a pallet jack that can support the weight of the external support 1 and the heavy object 6, and clear the passageway around the equipment to ensure that the heavy object 6 can be moved out of the equipment installation site smoothly.

[0073] like Figure 9 As shown, the internal support 2 is fixedly installed inside the equipment cabinet 7 of the heavy object 6 by multiple fasteners 24, positioning it below the heavy object. The moving lifting assembly 3 is then pushed into the bottom of the heavy object along the second slide rail 21 of the internal support 2. At this point, the hydraulic hose of the jack needs to be inserted through the gap in the middle of the internal support 2 and led out to the outside of the cabinet. The external support 1 is placed facing the direction in which the heavy object 6 is moved, ensuring that the external support 1 is aligned with the inner and outer supports 2 in the width direction, and its height is adjusted to match the height of the internal support 2 using the feet 14. Then, two connectors 5 are used to fasten the end of the first slide rail 11 of the external support 1 to the end of the second slide rail 21 of the internal support 2, completing the positioning of each component of the heavy object moving equipment.

[0074] Remove the fastening screws on the heavy object 6, and use the ultra-thin jack 32 to lift the heavy object 6 until it is detached from its mounting surface. Figure 10The mobile lifting assembly 3 loaded with the weight 6 is pushed to the first sliding rail 11 of the external support 1, the front end of the mobile lifting assembly 3 is moved to contact the limiting member 4 at the front end of the external support 1, and then is locked by the limiting member 4 at the rear end of the external support 1, and the ultra-thin jack 32 is dropped, as shown in Figure 11 At this time, the weight 6 has been safely moved out of the equipment cabinet 7.

[0075] The connecting member 5 between the external support 1 and the internal support 2 is disassembled, the external support 1 loaded with the weight 6 is moved out of the equipment site to a wide area by using a ground anchor, and then the weight 6 is unloaded by using a forklift or hoisting equipment.

[0076] The above steps are reversed to install a new weight device into the equipment, the internal support 2 is disassembled, the new weight device is installed in the equipment cabinet 7 by using fastening screws, and the replacement is completed.

[0077] The above description is only used to illustrate the technical solutions of the present application, and is not limited thereto. For ordinary professional technicians in the field, the specific technical solutions described in the above embodiments can be modified, or some technical features can be replaced, and these modifications or replacements do not change the essence of the corresponding technical solutions from the scope of the technical solutions protected by the present application.

Claims

1. A heavy object moving device for narrow space, characterized in that: comprising an external support (1), an internal support (2), a mobile lifting assembly (3), two limiting pieces (4) and two connecting pieces (5); the external support (1) comprises a pair of first sliding rails (11) arranged in parallel, two first limiting blocks (12) arranged outside the two first sliding rails (11) respectively, a support seat (13) arranged at the bottom of the two first sliding rails (11), and a plurality of height-adjustable foot cups (14) arranged at the bottom of the support seat (13); the internal support (2) comprises a pair of second sliding rails (21) arranged in parallel, two second limiting blocks (22) arranged outside the two second sliding rails (21) respectively, a plurality of groups of supporting feet (23) arranged at the bottom of the two second sliding rails (21), and a plurality of groups of fixing pieces (24); the fixing pieces (24) are used to realize the fixation of the supporting feet (23) and the heavy object cabinet body; the mobile lifting assembly (3) comprises two bearing wheel brackets (37) arranged in parallel, at least two ultra-thin jacks (32) arranged in the radial direction in each bearing wheel bracket (37), two covers (31) buckled on the two bearing wheel brackets (37) respectively, at least four groups of bearing wheels (34) arranged at the bottom of the two bearing wheel brackets (37), and at least two connecting plates (35) connected between the two bearing wheel brackets (37); the two bearing wheels (34) are arranged opposite to each other at the bottom of the two bearing wheel brackets (37); a first hydraulic pipe through hole (315) is formed on the bottom plate of the bearing wheel bracket (37) corresponding to the position of each ultra-thin jack (32), so that the jack hydraulic pipe can pass through; vertical guide holes (33) are formed on the two sides of the bearing wheel bracket (37) respectively, and a guide pin (311) is arranged on the cover (31) corresponding to the position of the guide hole (33), so that the cover (31) can move along the guide hole (33) in the vertical direction with the ultra-thin jack (32); the lengths of the first sliding rails (11), the second sliding rails (21) and the bearing wheel brackets (37) are the same, the distance between the inner side walls of the two first limiting blocks (12) is equal to the distance between the inner side walls of the two second limiting blocks (22), and is adapted to the outer side distance of the two groups of bearing wheel brackets (37) arranged opposite to each other, so that the plurality of groups of bearing wheels (34) can slide on the pair of first sliding rails (11) or the pair of second sliding rails (21), and be limited left and right by the two first limiting blocks (12) or the two second limiting blocks (22); the two limiting pieces (4) are arranged at the two ends of the mobile lifting assembly (3) respectively, and the upper end of the limiting piece (4) is transversely connected to the same side end of the two covers (31), and the lower end is connected to the end of the support seat (13); the two connecting pieces (5) are used to realize the fixation of the two first sliding rails (11) and the corresponding second sliding rails (21) ends.

2. The heavy object moving device for narrow space according to claim 1, characterized in that: the support seat (13) is a frame structure. ​ ​ ​ ​ ​ ​ ​ ​ The upper end of the foot cup (14) is provided as a threaded column, and the support seat (13) is provided with a through hole corresponding to each foot cup (14); the threaded column at the upper end of the foot cup (14) passes through the through hole at the corresponding position of the support seat (13) and is locked at different heights by the adjusting nut (16); The lower end of the supporting leg (23) is provided with an everted edge, and the fixing member (24) is arranged on the everted edge and used for being fixedly connected with the heavy object cabinet body.

3. The heavy object moving device for narrow space according to claim 2, characterized in that: The support seat (13) is provided with a second hydraulic pipe through hole (15) corresponding to the position of the ultra-thin jack (32) in the moving lifting assembly (3), so that the jack hydraulic pipe can pass through when the moving lifting assembly (3) is located on the external support (1).

4. The heavy object moving device for narrow space according to claim 3, characterized in that: The cover (31) comprises a top plate and side plates connected to both sides of the top plate; The bearing wheel bracket (37) comprises a bottom plate and side plates connected to both sides of the bottom plate; The side plates of the cover (31) are located outside the side plates of the bearing wheel bracket (37) on both sides, so as to realize the buckling of the cover (31) and the bearing wheel bracket (37); The guide hole (33) is arranged at the position close to the end of the side plate of the bearing wheel bracket (37), and the guide pin mounting hole (313) is arranged at the position corresponding to the guide hole (33) on the side plate of the cover (31); the guide pin (311) is mounted in the guide pin mounting hole (313) and used for cooperating with the guide hole (33) on the bearing wheel bracket (37).

5. The heavy object moving device for narrow space according to claim 4, characterized in that: The inner side wall of the top plate of the cover (31) is provided with a reinforcing rib (312); The outer side walls of the side plates of the bearing wheel bracket (37) are respectively provided with a plurality of anti-scratching pad plates (36).

6. The heavy object moving device for narrow space according to claim 5, characterized in that: The bottom plate of the bearing wheel bracket (37) is radially provided with at least two limiting discs (39), and the ultra-thin jack (32) is placed in the corresponding limiting disc (39).

7. The heavy object moving device for narrow space according to claim 1, characterized in that: The bearing wheel (34) is welded to the bottom of the bearing wheel bracket (37) through a plurality of plug welding holes (38).

8. The heavy object moving device for narrow space according to claim 7, characterized in that: The cover (31) is provided with a first connecting hole (310) at each end, and the support seat (13) is provided with a second connecting hole at the position close to the end on the upper surface; The limiting member (4) is fixedly connected with the cover (31) and the support seat (13) through the first connecting hole (310) and the second connecting hole.

9. The heavy object moving device for narrow space according to claim 1, characterized in that: The number of the foot cups (14) is eight, two of the eight foot cups (14) are arranged at each corner of the bottom of the support seat (13), and the two foot cups (14) in each group are arranged obliquely at the bottom of the support seat (13); The number of the supporting legs (23) and the fixing members (24) is eight, two of the eight supporting legs (23) are arranged at each end of the bottom of the second slide rail (21); The number of the bearing wheels (34) is four, two of the four bearing wheels (34) are welded at each end of the bottom of the bearing wheel bracket (37); The number of the ultra-thin jacks (32) in each bearing wheel bracket (37) is two; The number of the connecting plates (35) is two, and the two ends of the connecting plates (35) are fastened on the bearing wheel brackets (37) on the two sides through corresponding welding nuts (314) and bolts.

10. The heavy object moving device for narrow space according to claim 6, characterized in that: The first slide rail (11) and the support seat (13) in the outer support (1) are a welded integral part; The second slide rail (21), the supporting leg (23) and the fixing member (24) in the inner support (2) are a welded integral part; The bearing wheel bracket (37), the bearing wheel (34), the anti-scratching pad plate (36) and the limiting disc (39) in the moving and lifting assembly (3) are a welded integral part.

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