CN113294668B

CN113294668B - Fixing structure of hoisting equipment in narrow space and equipment disassembling method

Info

Publication number: CN113294668B
Application number: CN202110665038.0A
Authority: CN
Inventors: 宫启杰; 陈爱林; 张晨
Original assignee: NANJING HUASHI ELECTRONIC SCIENTIFIC CO Ltd
Current assignee: NANJING HUASHI ELECTRONIC SCIENTIFIC CO Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-04-29
Anticipated expiration: 2041-06-16
Also published as: CN113294668A

Abstract

The invention discloses a fixed structure of hoisting equipment in a narrow space and an equipment dismounting method, wherein the fixed structure comprises a hoisting assembly and an overturning assembly which are arranged in an equipment cabinet body, and the hoisting assembly comprises an equipment hanger; the turnover assembly comprises a turnover support, a U-shaped fixing frame and a turnover shaft, and the turnover support comprises an equipment connecting piece, a turnover connecting frame and a turnover shaft sleeve. According to the invention, through a simple structural design, the equipment can be mounted and dismounted in a narrow space, the principle that the equipment can naturally fall after the fixing bolt is loosened is adopted due to gravity factors, one end of the equipment can be lifted and hoisted through single operation through the turnover mechanism, and the other end of the equipment is mounted on the ground through the rotary fixing support, so that the number of maintenance personnel is integrally reduced, the expenditure of labor cost is directly reduced, and the falling-prevention pull rod assembly is arranged, so that the equipment and personnel are effectively protected from being injured by crashing.

Description

Fixing structure of hoisting equipment in narrow space and equipment disassembling method

Technical Field

The invention belongs to the technical field of equipment disassembly and assembly, and particularly relates to a fixing structure of hoisting equipment in a narrow space and an equipment disassembly method.

Background

In the field of rail transit, a new vehicle type appears at present, a rubber wheel walking mode (a non-iron hub walks along a specific rail) is adopted, and the intelligent electric vehicle belongs to an intelligent electric vehicle in the field of new energy; the vehicle type adopts a subway-style marshalling form, and can run on a common road by combining the characteristics of new energy (storage battery power supply, super capacitor power supply and the like); the auxiliary converter required by the vehicle generates a new layout form, and compared with the traditional subway auxiliary converter, the subway auxiliary converter is smaller in size, multiple in function and more compact in equipment arranged in the cabinet body; for the product of the type, innovation and improvement are needed on the original design idea, the layout requirement brought by small volume can be met, and normal daily work such as maintenance and overhaul can be completed.

Normal equipment, for example, the equipment weighs about 30kg, and in order not to affect the operation of the equipment at the lower part of the equipment, in a normal situation, in order to save space, the equipment is hung and fixed, which is a better structural form; however, when the equipment at the lower part needs to be maintained, the equipment at the upper part needs to be dismantled first, so that under the normal condition of dismantling and installing 30kg of equipment, 2 to 3 persons are needed, 2 persons are needed to lift the equipment, the other person removes the hoisted fixing bolt, then the fixed bolt is lifted to a certain position, and then the equipment is dragged out.

Disclosure of Invention

The invention aims to provide a fixing structure of hoisting equipment in a narrow space and an equipment disassembling method.

The technical solution to achieve the above object is as follows:

a fixed structure of hoisting equipment in a narrow space comprises a hoisting component and a turning component which are arranged in an equipment cabinet body, wherein the hoisting component comprises an equipment hanger, an equipment lifting pull rod, a turning frame, an equipment upper pull rod, a lower pull rod, a rotating bolt, a screw rod bracket and a combined bolt, the bottom of the equipment hanger is fixedly connected with one side of the equipment, the equipment upper pull rod and the lower pull rod comprise sliding opening sections and upper pull rod and lower pull rod sliding in and out gaps, the equipment lifting pull rod comprises a lifting pull rod sliding in and out gap, one end of the screw rod bracket is fixedly connected with the equipment hanger, the turning frame is rotatably connected with the other end of the screw rod bracket through the screw rod, one end of the equipment lifting pull rod is rotatably connected with the turning frame, the other end of the equipment lifting pull rod slides in and out the gap through the lifting pull rod and is hung with one side of the equipment, and the rotating bolt passes through the sliding opening sections and is connected with the side part of the equipment hanger, the sliding opening section can slide along the rotating bolt, the upper and lower pull rods of the equipment are hung on one side of the equipment through the sliding in-out gap of the upper and lower pull rods, and the combined bolt passes through the sliding in-out gap of the lifting pull rod and the sliding in-out gap of the upper and lower pull rods and is fixedly connected with the equipment;

the turnover assembly comprises a turnover support, a U-shaped fixing frame and a turnover shaft, the turnover support comprises an equipment connecting piece, a turnover connecting frame and a turnover shaft sleeve, the equipment connecting piece is fixedly connected with the other side of the equipment, the turnover connecting frame is connected with the equipment connecting piece and the turnover shaft sleeve, the turnover shaft penetrates through the turnover shaft sleeve, the U-shaped fixing frame is fixedly connected with the equipment cabinet body, the upper end and the lower end of the turnover shaft are fixedly connected with the U-shaped fixing frame, and the turnover shaft sleeve can rotate and move up and down along the turnover shaft.

Furthermore, another equipment module is arranged below one side of the equipment, an installation frame is arranged below the other side of the equipment, and a distance is reserved between the equipment and the other equipment module and between the equipment and the installation frame.

Furthermore, one side of the equipment is provided with an L-shaped hanging bracket, the bottom surface of the L-shaped hanging bracket is provided with a first fixing threaded hole, the bottom surface of the equipment hanging bracket is provided with a second fixing threaded hole, and the L-shaped hanging bracket is fixedly connected with the equipment hanging bracket by a first bolt penetrating through the first fixing threaded hole and the second fixing threaded hole.

Furthermore, two ends of the other side of the equipment are respectively provided with an L-shaped mounting foot, a third fixing threaded hole is formed in the L-shaped mounting foot, a fourth fixing threaded hole is formed in the equipment connecting piece of the overturning support, and the L-shaped mounting foot is fixedly connected with the equipment connecting piece through a second bolt penetrating through the third fixing threaded hole and the fourth fixing threaded hole.

Furthermore, external threads are arranged at two ends of the screw rod, a first screw rod fixing hole is formed in the extending end of the screw rod support, a second screw rod fixing hole is formed in the side portion of the roll-over stand, and the end portion of the external threads of the screw rod is limited by a screw rod nut after penetrating through the first screw rod fixing hole and the second screw rod fixing hole.

Furthermore, still include the lifting rod axis of rotation, the lifting rod axis of rotation includes lifting rod axis of rotation cylinder section and lifting rod axis of rotation external screw thread section, lifting rod axis of rotation fixed orifices has still been seted up to the lateral part of roll-over stand, the lifting rod axis of rotation passes lifting rod axis of rotation fixed orifices and sets up.

Furthermore, a hand-holding hole is formed in the rear part of the turnover frame.

Furthermore, the upper surface and the lower surface of the U-shaped fixing frame are provided with turnover shaft penetrating holes, the turnover shaft comprises a turnover shaft cylindrical section and a turnover shaft external thread section located at the end part, and the turnover shaft external thread section penetrates through the turnover shaft penetrating holes and then is fixedly connected with the U-shaped fixing frame.

Further, the rotating bolt comprises a rotating bolt cylindrical section and a rotating bolt external thread section positioned at the end part.

The equipment dismounting method for the fixing structure of the hoisting equipment in the narrow space comprises the following steps:

firstly loosening the first bolt without taking down, then loosening and taking down the second bolt, then lifting the equipment to be positioned at one side of the L-shaped mounting foot to enable the overturning support to rotate along the overturning shaft, dropping the overturning support to the lower end of the U-shaped fixing frame, similarly, rotating the overturning support at the other end to drop to the lower end of the U-shaped fixing frame to enable the L-shaped mounting foot of the equipment to droop and drop to the upper end of the mounting frame in the cabinet, then loosening the combined bolt without taking down, then taking down the first bolt, enabling the equipment to start to droop under the action of gravity, and enabling the equipment to have a distance from another equipment module when the equipment is limited to stay;

secondly, the regional position of L shape gallows of lifting equipment, with equipment lifting pull rod along lifting pull rod slip access to the inclined plane incision department of breach and dial out, pull rod slides access to the inclined plane breach department of breach along upper and lower pull rod about equipment again and dials out, rotates the roll-over stand along the screw rod again, moves horizontal position with equipment upper and lower pull rod, moves equipment along the direction from the mounting bracket to another equipment module, again to the external completion dismantlement that pulls out of the cabinet body.

Compared with the prior art, the invention has the beneficial effects that:

through simple structural design, realize the equipment fixing and dismantling in narrow and small space, adopt equipment self gravity factor for equipment can realize the principle of nature whereabouts after not hard up fixing bolt, through tilting mechanism, realize that one-man operation promotes equipment one end hoist and mount, and the installation of falling to the ground is passed through rotatory fixed bolster to one end, has wholly reduced maintainer's quantity, has directly reduced the expenditure of human cost, is provided with dropproof pull rod assembly simultaneously, has effectively avoided equipment and personnel to be pounded the condition of hindering.

Drawings

Fig. 1 is a schematic view of a first view angle of a fixed structure of a hoisting device in a narrow space in an installation state.

Fig. 2 is a schematic view of a second view of the installation state of the fixing structure of the hoisting equipment in the narrow space.

Fig. 3 is a schematic view of a fixed structure of the hoisting equipment in a narrow space.

Fig. 4 is a front view of a fixed structure of the hoisting equipment in a narrow space.

Fig. 5 is a top view of a fixed structure of the small space hoisting device.

Figure 6 is a side view of the fixed structure of the small space hoisting device.

Fig. 7 is a first perspective structure view of a fixed structure of the hoisting device in a narrow space.

Fig. 8 is a second perspective view of the fixing structure of the hoisting device in a narrow space.

Fig. 9 is a top view of a fixed structure concealed equipment hanger of a small space hoisting device.

Fig. 10 is a perspective view of a fixed structure hiding equipment hanger of the narrow space hoisting equipment.

Fig. 11 is a perspective view of the device from a first perspective.

Fig. 12 is a perspective view of the device from a second perspective.

Fig. 13 is a front view of the apparatus.

Fig. 14 is a schematic view of a first perspective view of the equipment hanger.

Fig. 15 is a perspective view of the equipment hanger from a second perspective.

Fig. 16 is a third perspective view of the equipment hanger.

Fig. 17 is a schematic view of the structure of the up-down pull rod of the device.

Fig. 18 is a schematic view of the structure of the lifting pull rod of the device.

Fig. 19 is a first perspective view of the flip stand.

Fig. 20 is a perspective view of the flip stand from a second perspective.

Fig. 21 is a schematic structural view of a U-shaped fixing frame.

Fig. 22 is a schematic view of a flip axis configuration.

Fig. 23 is a schematic view of a screw structure.

Fig. 24 is a schematic view of a screw support structure.

Fig. 25 is a schematic view of a turn bolt structure.

Fig. 26 is a schematic view of a construction of a jack bolt.

Fig. 27 is a schematic view of the structure of the rotation shaft of the lifting rod.

Fig. 28 is a schematic view of the roll-over stand structure.

Figure 29 is a schematic view of the installation and connection of the lifting assembly.

Fig. 30 is a schematic view of the flip assembly attachment.

Fig. 31 is a partially enlarged view of fig. 29.

FIG. 32 is a partial first perspective view of the device disassembly process.

Fig. 33 is a partial second perspective view of the device detachment process.

Fig. 34 is an overall schematic view of the apparatus detachment process.

Fig. 35 is a schematic view of the equipment disassembly process with cabinet section area hidden.

Fig. 36 is a schematic view of the equipment disassembly process with cabinet section area hidden.

FIG. 37 is a partial schematic view of the device disassembly process.

FIG. 38 is a partial schematic view of the device disassembly process.

FIG. 39 is a partial schematic view of the device disassembly process.

Fig. 40 is an overall schematic view of the device detachment process.

FIG. 41 is a schematic view of a mobile device during device detachment.

FIG. 42 is a drawing apparatus schematic view of the apparatus detachment process.

FIG. 43 is a schematic view of the device removal process pulling out and holding the device.

Fig. 44 is a schematic view of the device installation process.

Fig. 45 is a schematic view of the device installation process.

Fig. 46 is a schematic view of the device installation process.

Fig. 47 is a plan view of the apparatus installation completed state.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

Referring to fig. 1-10, a fixing structure of a small space hoisting device comprises a hoisting component and a turnover component installed in a device cabinet, wherein the hoisting component comprises a device hanger 11 (as shown in fig. 47, the device hanger 11 is connected with a bracket 50), a device hoisting pull rod 8 (the symmetrical parts are 2 pieces in total), a turnover frame 9, a device upper and lower pull rods 12 (the symmetrical parts are 2 pieces in total), a rotating bolt 13(2 pieces), a screw 17, a screw bracket 18 (the symmetrical parts are 2 pieces in total), and a M8 & 30 combination bolt 7 (as shown in fig. 26), the bottom of the device hanger 11 is fixedly connected with one side of the device 1, the device upper and lower pull rods 12 comprise sliding opening sections and upper and lower pull rod sliding in and out notches 25 (as shown in fig. 17, the lower pull rod sliding in and out notches 25 comprise upward lifting notches and downward stretching notches), the device hoisting pull rod 8 comprises hoisting pull rod sliding in and out notches 26, one end of the screw rod support 18 is fixedly connected with an equipment hanging bracket 11, the roll-over stand 9 is rotatably connected with the other end of the screw rod support 18 through a screw rod 17, one end of an equipment lifting pull rod 8 is rotatably connected with the roll-over stand 9, the other end of the equipment lifting pull rod is hung on one side of equipment 1 through a lifting pull rod sliding in-out notch 26, the rotating bolt 13 penetrates through the sliding opening section to be connected with the side part of the equipment hanging bracket 11, the sliding opening section can slide along the rotating bolt 13, the equipment upper and lower pull rods 12 are hung on one side of the equipment 1 through an upper and lower pull rod sliding in-out notch 25, and the combined bolt 7 penetrates through the lifting pull rod sliding in-out notch 26 and the upper and lower pull rod sliding in-out notch 25 to be fixedly connected with the equipment 1;

the turnover assembly comprises a turnover support 4, a U-shaped fixing frame 31 and a turnover shaft 6, and is combined with figures 20-21, wherein the turnover support 4 (installed through a turnover support connecting piece in figure 38) comprises an equipment connecting piece 27, a turnover connecting frame 30 and a turnover shaft sleeve 29, the equipment connecting piece 27 is fixedly connected with the other side of the equipment 1, the turnover connecting frame 30 is connected with the equipment connecting piece 27 and the turnover shaft sleeve 29, the turnover shaft 6 penetrates through the turnover shaft sleeve 29, the U-shaped fixing frame 31 is fixedly connected with an equipment cabinet body, the upper end and the lower end of the turnover shaft 6 are fixedly connected with the U-shaped fixing frame 31, and the turnover shaft sleeve 29 can rotate and move up and down along the turnover shaft 6.

Preferably, with reference to fig. 3, another equipment module 14 is arranged below one side of the equipment 1, a mounting rack 5 is arranged below the other side of the equipment 1, the other equipment module 14 is provided with a connector, the connector includes a connector plug wire 15, when the equipment 1 is disassembled and assembled, the wire 15 needs to be firstly placed down and received inside the equipment, the wire 15 is prevented from being pressed when the equipment 1 is placed down, and a distance is reserved between the equipment 1 and the equipment module and the mounting rack 5, for example, the distance may be 40 mm.

Preferably, with reference to fig. 10-13, one side of the device 1 is provided with an L-shaped hanger 19, the bottom surface of the L-shaped hanger 19 is provided with a first fixing threaded hole 21, the side surface of the L-shaped hanger 19 is provided with a mounting hole 20 for the assembling bolt 7, the bottom surface of the device hanger 11 is provided with a second fixing threaded hole 24, and the L-shaped hanger 19 is fixedly connected with the device hanger 11 by a first bolt 47(M8 × 30) passing through the first fixing threaded hole 21 and the second fixing threaded hole 24 (with reference to fig. 29). Two ends of the other side of the equipment 1 are respectively provided with an L-shaped mounting foot 3, the L-shaped mounting foot 3 is provided with a third fixing threaded hole 16, the equipment connecting plate 27 of the overturning support 4 is provided with a fourth fixing threaded hole 28, and the L-shaped mounting foot 3 is fixedly connected with the equipment connecting plate 27 through a second bolt 2(M8 x 30) penetrating through the third fixing threaded hole 16 and the fourth fixing threaded hole 28.

Preferably, referring to fig. 14 to 16, a screw bracket fixing hole 22(M6) is formed at the rear side of the equipment hanger 11, and a lifting rod rotating shaft M8 × 30 assembling bolt screw thread fixing hole 23 is formed at both sides.

Preferably, with reference to fig. 9, 10, 23, 24, 28, and 43, two ends of the screw 17 are provided with external threads, the protruding end 36 of the screw bracket 18 is provided with a first screw fixing hole 35, the side 43 of the roll-over stand 9 is provided with a second screw fixing hole 44, and the end of the external threads of the screw 17 is limited by the screw nut 10 after passing through the first screw fixing hole 35 and the second screw fixing hole 44.

Preferably, with reference to fig. 27 and 28, the roll-over stand further includes a lifting rod rotating shaft 48, the lifting rod rotating shaft 48 includes a lifting rod rotating shaft cylindrical section 39 and a lifting rod rotating shaft external thread section 40, a lifting rod rotating shaft fixing hole 45 is further formed in the side portion 43 of the roll-over stand 9, and the lifting rod rotating shaft 48 penetrates through the lifting rod rotating shaft fixing hole 45.

Preferably, as shown in fig. 28, the rear portion of the roll-over stand 9 is provided with a hand-holding hole 41, and the lower edge of the rear portion is provided with a pressing edge 42.

Preferably, with reference to fig. 21, 22, 30 and 31, a flip shaft insertion hole 32 is formed in the upper and lower surfaces of the U-shaped fixing frame 31, the flip shaft 6 includes a cylindrical section 34 of the flip shaft and an external screw section 33 of the flip shaft located at the end, and the external screw section 33 of the flip shaft passes through the flip shaft insertion hole 32 and then is fixedly connected to the U-shaped fixing frame 31.

Preferably, with reference to fig. 25, the turning bolt 13 comprises a turning bolt cylindrical section 37 and a turning bolt external threaded section 38 at the end.

The main structural parts of the invention are all formed by cutting, bending and molding stainless steel plates, the whole manufacturing is simple, the process flow is simple and convenient, the rotating shaft, the rotating bolt and the like are all formed by turning stainless steel round steel, the structure is simple, and the processing is convenient.

The equipment dismounting and mounting method of the fixing structure of the hoisting equipment in the narrow space comprises the following steps:

referring to fig. 32-36, first, in the cabinet, the connector plug of the lower equipment module 14 of the 30kg equipment 1 is pulled out, then the plug and the wires are placed in the module (because the wires have a bending radius), the first bolt 47 is loosened (cannot be completely removed), then the second bolt 2 is loosened and removed, and then the equipment 1 is lifted to one side of the L-shaped mounting leg 3 (slightly lifted upwards) so that the turning bracket 4 rotates along the turning shaft 6, and the turning bracket 4 is lowered to the lower end of the U-shaped fixing frame 31. Similarly, the turning support 4 at the other end is rotated to fall to the lower end of the U-shaped fixing frame 31, so that the L-shaped mounting leg 3 of the equipment 1 hangs down and falls to the upper end of the mounting frame 5 in the cabinet, then the combined bolt 7 is loosened (only a few circles are loosened and can not be completely separated), then the first bolt 47 is taken down, the equipment 1 starts to hang down under the action of the self gravity, and the equipment 1 is limited by the equipment lifting pull rod 8 and the equipment upper and lower pull rods 12 in the process of hanging down, so that the equipment 1 is limited to stay at a certain distance from another equipment module 14, even if the 30kg equipment 1 stays in a certain size height range, the equipment 1 cannot be hit on the equipment module 14 at the lower part (similar to the anti-falling action) immediately or slowly and then the 30kg equipment 1 falls down;

next, referring to fig. 37-43, the position of the L-shaped hanger 19 of the device 1 is slightly lifted, the device lifting rod 8 is pulled out along the inclined cut of the lifting rod sliding in and out gap 26, the device upper and lower rods 12 are pulled out along the inclined cut of the device sliding in and out gap 25, the roll-over stand 9 is rotated clockwise along the screw 17, the device upper and lower rods 12 are moved to the horizontal position, the device 1 is moved in the direction from the mounting rack 5 to another device module 14 (leftward direction in fig. 41), and is pulled out of the cabinet to complete disassembly, when a part of the cabinet is exposed, a lifting platform or a forklift can be placed at the lower part of the cabinet, and 30kg of the device 1 is moved away.

Finally, with reference to fig. 44-47, when a single person returns to the hanging installation of the 30kg device 1, the basic steps are similar, the single person firstly places the 30kg device 1 on the door frame of the cabinet body and above the device module through a forklift or a lifting platform, then horizontally pushes the device into the cabinet body, then moves the device to the right, then respectively lifts up the L-shaped mounting feet 3 of the 30kg device, pushes the overturning bracket 4 upwards, and then rotationally places the device 1 at the lower parts of the L-shaped mounting feet 3 of the 30kg device 1, and the other side has the same operation mode; then slightly and respectively lifting the L-shaped hanger area of the 30kg equipment, and sliding the upper and lower pull rods 12 and the lifting pull rod 8 of the equipment into the loose area of the M8-30 combination bolt 7 along the inclined notch; and finally, the roll-over stand 9 is rotated anticlockwise, the 30kg equipment is lifted to a certain height (close to the up-down attaching state), then the M8 and 30 combination bolts 7 are screwed in by the other hand respectively, and finally the roll-over stand 9 is loosened to fasten all the bolts, namely, all the operations are completed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The fixing structure of the hoisting equipment in the narrow space is characterized by comprising a hoisting component and a turnover component which are arranged in an equipment cabinet body, wherein the hoisting component comprises an equipment hanger (11), an equipment lifting pull rod (8), a turnover frame (9), an equipment upper pull rod (12), a rotating bolt (13), a screw rod (17), a screw rod support (18) and a combined bolt (7), the bottom of the equipment hanger (11) is fixedly connected with one side of equipment (1), the equipment upper pull rod (12) and the equipment lower pull rod (12) comprise sliding opening sections and upper pull rod and lower pull rod sliding in and out gaps (25), the equipment lifting pull rod (8) comprises a lifting pull rod sliding in and out gap (26), one end of the screw rod support (18) is fixedly connected with the equipment hanger (11), the turnover frame (9) is rotatably connected with the other end of the screw rod support (18) through the screw rod (17), one end of the equipment lifting pull rod (8) is rotatably connected with the roll-over stand (9), the other end of the equipment lifting pull rod slides to enter and exit the notch (26) to be hung on one side of the equipment (1), the rotating bolt (13) penetrates through the sliding opening section to be connected with the side part of the equipment hanging bracket (11), the sliding opening section can slide along the rotating bolt (13), the equipment upper and lower pull rods (12) are hung on one side of the equipment (1) through the upper and lower pull rod sliding entrance and exit notch (25), and the combined bolt (7) penetrates through the lifting pull rod sliding entrance and exit notch (26) and the upper and lower pull rod sliding entrance and exit notch (25) to be fixedly connected with the equipment (1);

the turnover assembly comprises a turnover support (4), a U-shaped fixing frame (31) and a turnover shaft sleeve (6), the turnover support (4) comprises an equipment connecting piece (27), a turnover connecting frame (30) and a turnover shaft sleeve (29), the equipment connecting piece (27) is fixedly connected with the other side of the equipment (1), the turnover connecting frame (30) is connected with the equipment connecting piece (27) and the turnover shaft sleeve (29), the turnover shaft sleeve (6) penetrates through the turnover shaft sleeve (29), the U-shaped fixing frame (31) is fixedly connected with an equipment cabinet body, the upper end and the lower end of the turnover shaft (6) are fixedly connected with the U-shaped fixing frame (31), and the turnover shaft sleeve (29) can rotate and move up and down along the turnover shaft (6).

2. The fixing structure of the small space hoisting equipment according to claim 1, characterized in that another equipment module (14) is arranged below one side of the equipment (1), a mounting rack (5) is arranged below the other side of the equipment (1), a distance is reserved between the equipment (1) and the other equipment module (14), and a distance is reserved between the equipment (1) and the mounting rack (5).

3. The fixing structure of the narrow space hoisting equipment according to claim 2, characterized in that one side of the equipment (1) is provided with an L-shaped hanger (19), the bottom surface of the L-shaped hanger (19) is provided with a first fixing threaded hole (21), the bottom surface of the equipment hanger (11) is provided with a second fixing threaded hole (24), and the L-shaped hanger (19) and the equipment hanger (11) are fixedly connected through a first bolt (47) passing through the first fixing threaded hole (21) and the second fixing threaded hole (24).

4. The fixing structure of the narrow space hoisting equipment as claimed in claim 3, wherein two ends of the other side of the equipment (1) are respectively provided with an L-shaped mounting foot (3), the L-shaped mounting foot (3) is provided with a third fixing threaded hole (16), the equipment connecting plate (27) of the overturning bracket (4) is provided with a fourth fixing threaded hole (28), and the L-shaped mounting foot (3) and the equipment connecting plate (27) are fixedly connected by a second bolt (2) penetrating through the third fixing threaded hole (16) and the fourth fixing threaded hole (28).

5. The fixing structure of the narrow space hoisting equipment according to claim 4, wherein external threads are arranged at two ends of the screw (17), a first screw fixing hole (35) is arranged on an extending end (36) of the screw bracket (18), a second screw fixing hole (44) is arranged on a side portion (43) of the roll-over stand (9), and the end portion of the external threads of the screw (17) is limited by the screw nut (10) after passing through the first screw fixing hole (35) and the second screw fixing hole (44).

6. The fixing structure of the narrow space hoisting equipment according to claim 5, further comprising a lifting pull rod rotating shaft (48), wherein the lifting pull rod rotating shaft (48) comprises a cylindrical lifting pull rod rotating shaft section (39) and an external thread section (40) of the lifting pull rod rotating shaft, a lifting pull rod rotating shaft fixing hole (45) is further formed in the side portion (43) of the roll-over stand (9), and the lifting pull rod rotating shaft (48) passes through the lifting pull rod rotating shaft fixing hole (45).

7. The fixing structure of the hoisting equipment in the narrow space as claimed in claim 5, wherein the rear part of the roll-over stand (9) is provided with a hand-holding hole (41).

8. The fixing structure of the hoisting equipment in the narrow space according to claim 5, wherein the U-shaped fixing frame (31) is provided with a turning shaft insertion hole (32) on the upper and lower surfaces, the turning shaft (6) comprises a turning shaft cylindrical section (34) and a turning shaft external thread section (33) at the end, and the turning shaft external thread section (33) is fixedly connected with the U-shaped fixing frame (31) after passing through the turning shaft insertion hole (32).

9. The stationary structure of a hoisting device for narrow spaces as claimed in claim 5, characterized in that the rotating bolt (13) comprises a cylindrical section (37) of the rotating bolt and an external threaded section (38) of the rotating bolt at the end.

10. The device detaching method for the fixing structure of the hoisting device in the narrow space according to any one of claims 5 to 9, comprising the steps of:

first the first bolt (47) is loosened but not removed, then the second bolt (2) is loosened and removed, then lifting the equipment (1) to one side of the L-shaped mounting foot (3) to enable the overturning bracket (4) to rotate along the overturning shaft (6), dropping the overturning bracket (4) to the lower end of the U-shaped fixing frame (31), and similarly, rotating the overturning bracket (4) at the other end to drop to the lower end of the U-shaped fixing frame (31), so that the L-shaped mounting foot (3) of the equipment (1) hangs down and falls to the upper end of a mounting rack (5) in the cabinet, then the assembling bolt (7) is loosened but not removed, then the first bolt (47) is taken down, the equipment (1) begins to droop under the action of gravity, the process of the droop of the equipment (1) is limited by the lifting pull rod (8) of the equipment and the upper and lower pull rods (12) of the equipment, so that the device (1) is kept at a limited distance from another device module (14);

secondly, the regional position of L shape gallows (19) of equipment (1) is lifted, pull out equipment lifting rod (8) along lifting rod slip access to the inclined plane incision department of breach (26), pull out equipment pull rod (12) about again along pull rod slip access to the inclined plane breach department of breach (25), rotate roll-over stand (9) along screw rod (17), pull rod (12) move horizontal position about with equipment, move equipment (1) along the direction from mounting bracket (5) to another equipment module (14), pull out again to the cabinet body outward and accomplish the dismantlement.