An L-shaped water-cooling cover joint disassembly and assembly lifting device

Abstract

An L-shaped water-cooling cover body docking and disassembling sling belongs to the field of hoisting technology. The present invention is to solve the problem that the surface of the L-shaped water-cooling cover body cannot be provided with a hanging point or a mounting hole. It includes a docking and clamping sling, which includes a sling seat, a first V-shaped avoidance groove is provided on the front side of the sling seat, two positioning blocks are respectively connected to the sling seat, two positioning through holes are provided on the positioning blocks, and the hole spacing of the two positioning through holes is set according to the flange hole spacing of the L-shaped water-cooling cover strip flange. The sling seat is provided with two connecting arms extending to the left and right sides respectively; the sling seat is connected to an auxiliary bracket, and the auxiliary bracket holds up the L-shaped water-cooling cover body. The rear V-shaped surface of the L-shaped water-cooling cover body cooperates with the first V-shaped avoidance groove, and the two ends of the lifting beam are respectively connected to the two connecting arms one by one through a sling; the present invention relates to an L-shaped water-cooling cover body docking and disassembly sling, which uses its own structure to carry out hoisting on the L-shaped water-cooling cover body without a hanging point, and can keep the center of gravity stable during the hoisting process.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting, and in particular relates to an L-shaped water-cooling cover butting and disassembling lifting device. Background Art

[0002] Lifting slings refer to the connecting parts between the crane and the hoisted object, and are a general term for slings and slings. Slings are ropes made of steel wire ropes or synthetic fibers and used for lifting. Slings refer to devices used to lift heavy objects in lifting machinery. Common finished slings are hooks, lifting rings, lifting suction cups, clamps, and forks. Conventional lifting schemes generally set lifting rings or lifting point structures on the hoisted object, and use universal finished slings to connect the crane and the hoisted object for lifting. Lifting using universal finished slings has the advantages of simple structure, strong versatility, and fast technical preparation. However, for some hoisted objects that are not convenient to set lifting rings or lifting point structures, special-shaped hoisted objects, and objects with a large deviation in the center of gravity, specially designed slings are required for lifting.

[0003] For some objects that are not convenient to set up lifting rings or lifting point structures, it is impossible to use general finished lifting slings during lifting due to the lack of lifting points. For special-shaped objects and objects with a large deviation in the center of gravity, large tilt and instability may occur during lifting. For example, an L-shaped water-cooling cover has an asymmetrical L-shaped structure, including a vertical part and an oblique flat part. The lower end of the oblique flat part is connected to the top of the vertical part. The center of gravity is offset to the space point between the vertical part and the oblique flat part outside the cover structure. The vertical part and the oblique flat part are both equal straight structures with a V-shaped cross section. The V-shaped opening of the vertical part is set forward, the high end of the inclined flat part extends obliquely backward and upward, the V-shaped opening of the inclined flat part is set upward, the left and right edges of the vertical part are provided with strip flanges, and the rear surface of the vertical part and the lower surface of the inclined flat part are provided with a number of water cooling grooves. A number of skins close a number of water cooling grooves in a one-to-one correspondence to form a number of water cooling channels, one end of the water cooling channel is provided with a cooling water inlet, and the other end of the water cooling channel is provided with a cooling water outlet. The L-shaped water-cooling cover body is entirely a cooling surface, and has a special structure. No hanging points or mounting holes can be set on the surface of the cover body.

[0004] The L-shaped water-cooling hood is a cooling component on the equipment hot-run test bench. Before on-site hot-run testing, the hood must be docked and mounted to the support frame after the equipment is mounted. After the hot-run test, the L-shaped hood must be removed from the support frame before the equipment is removed. When equipment is mounted on the support frame, installing and removing the hood requires the design and manufacture of a specialized lifting fixture that can reliably position and clamp the L-shaped hood while effectively avoiding the equipment structure on the support frame. Summary of the Invention

[0005] The purpose of the present invention is to provide an L-shaped water-cooling cover docking and disassembly lifting device to solve the problem that the surface of the L-shaped water-cooling cover cannot be provided with lifting points or mounting holes for lifting. The technical solution adopted by the present invention is as follows:

[0006] An L-shaped water-cooling cover body docking and disassembly lifting device, the L-shaped water-cooling cover body includes a vertical portion and an oblique flat portion, the lower end of the oblique flat portion is connected to the top end of the vertical portion, the vertical portion and the oblique flat portion are both equal straight structures with a V-shaped cross-section, the V-shaped opening of the vertical portion is set forward, the high end of the oblique flat portion extends obliquely backward and upward, the V-shaped opening of the oblique flat portion is set upward, the left and right edges of the vertical portion are provided with strip flanges, the rear surface of the vertical portion and the lower surface of the oblique flat portion are both provided with a plurality of water-cooling grooves, a plurality of skins are correspondingly closed to the plurality of water-cooling grooves to form a plurality of water-cooling channels, one end of the water-cooling channel is provided with a cooling water inlet, and the other end of the water-cooling channel is provided with a cooling water outlet;

[0007] The sling comprises a lifting beam, a docking clamping sling and an auxiliary bracket;

[0008] The docking clamping sling includes a sling seat, a first V-shaped avoidance groove running vertically through the middle of the front side of the sling seat is provided, two positioning blocks are respectively connected to the sling seat, the two positioning blocks are respectively located on the left and right sides of the first V-shaped avoidance groove, two positioning holes are provided on the upper and lower sides of the positioning blocks, the hole spacing of the two positioning holes is set according to the flange hole spacing of the strip flange, and the sling seat is provided with two connecting arms extending to the left and right sides respectively;

[0009] The auxiliary bracket includes a U-shaped frame and a support plate arranged above and below. The U-shaped frame is a frame with an open front side, and the support plate is a rectangular flat plate. The four corners of the U-shaped frame are connected to the four corners of the support plate through columns in a one-to-one correspondence. The middle of the left side frame and the middle of the right side frame of the U-shaped frame are connected through an upper plate. A second V-shaped avoidance groove is opened on the front side of the upper plate. The spreader seat is connected to the upper plate, and the first V-shaped avoidance groove is aligned with the second V-shaped avoidance groove.

[0010] There are two eye screws on the upper end surface of the lifting beam. The lifting beam is set on the left and right. The two ends of the lifting beam are connected to the two connecting arms one by one through lifting belts.

[0011] When hoisting the L-shaped water-cooling cover, the lower end surface of the vertical part is abutted against the upper end surface of the support plate, the rear V-shaped surface of the vertical part cooperates with the first V-shaped avoidance groove, and the four locating pins pass through the four positioning holes on the two positioning blocks in a one-to-one manner and cooperate with the corresponding flange holes on the strip flange on the same side. The outer dimensions of the auxiliary bracket are set according to the L-shaped water-cooling cover, so that when the L-shaped water-cooling cover is hoisted, the center of gravity of the L-shaped water-cooling cover is in the middle of the auxiliary bracket.

[0012] Furthermore, a rubber sheet is pasted on the inclined surface of the first V-shaped avoidance groove.

[0013] Furthermore, the sling is a flexible ring-shaped sling, and two lifting eye screws are provided on the lower end surface of the lifting beam, and the two rigging shackles are connected to the two lifting eye screws on the lower end surface of the lifting beam in a one-to-one manner. The upper end surfaces of the two connecting arms opposite to each other are provided with lifting eye screws, and the two rigging shackles are connected to the lifting eye screws on the two connecting arms in a one-to-one manner. One sling is respectively connected to the rigging shackle on the left side of the lifting beam and the rigging shackle on the left connecting arm, and the other sling is respectively connected to the rigging shackle on the right side of the lifting beam and the rigging shackle on the right connecting arm.

[0014] Furthermore, the eye screw is an M eye screw.

[0015] Furthermore, the lifting beam is a No. . channel steel component.

[0016] Furthermore, the spreader seat is a rectangular square tube component arranged on the left and right.

[0017] Furthermore, two blocks are welded on the left and right sides of the upper plate, and blocks are welded on the front ends of the left and right side frames of the U-shaped frame respectively. The rear side surface of the sling seat is close to the two blocks on the upper plate for limiting position, and the front side surface of the sling seat is close to the blocks on the two side frames for limiting position.

[0018] Furthermore, two tightening screw holes are provided on the positioning block, one end of the two tightening screw holes is vertically connected to the middle of the two positioning through holes, and the top screw is matched with the thread of the tightening screw hole. After the positioning pin shaft is inserted into the positioning through hole, the top screw tightens the corresponding positioning pin shaft to ensure that the positioning pin shaft does not fall out.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. It is made of thick-walled rectangular tubes and channel steel and other profiles welded together, with good rigidity and simple structure. It effectively utilizes the flange holes of the strip flanges on the left and right sides of the L-shaped water-cooling cover as positioning lifting points. The lifting point of the connecting arm has a short extension distance, good stress state, stable and reliable, easy to disassemble and assemble, and low manufacturing cost.

[0021] 2. The upper lifting beam is used in conjunction with the lower docking clamping sling, which can effectively avoid the main structure on the supporting frame that has been installed in place, which is simple and convenient.

[0022] 3. Equipped with auxiliary brackets to keep the L-shaped water cooling cover upright before and after disassembly and assembly, which is convenient for disassembly and alignment and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the present invention's hoisting L-shaped water-cooling cover;

[0025] Figure 3 yes Figure 2 A magnified view of point A;

[0026] Figure 4 It is a structural diagram of the docking clamping sling;

[0027] Figure 5 is a structural diagram of the auxiliary bracket;

[0028] Figure 6 This is an axonometric view of the L-shaped water-cooling cover;

[0029] Figure 7 This is an axonometric view of the L-shaped water-cooling cover from another perspective.

[0030] In the figure, 1. lifting beam, 2. lifting belt, 21. rigging shackle, 3. docking clamping sling, 31. sling seat, 32. first V-shaped avoidance groove, 33. positioning block, 34. positioning pin, 35. connecting arm, 36. rubber plate, 4. auxiliary bracket, 41. U-shaped frame, 42. upper plate, 43. second V-shaped avoidance groove, 44. column, 45. support plate, 5. lifting eye screw, 6. L-shaped water-cooling cover, 61. vertical part, 62. inclined flat part, 63. strip flange, 64. skin. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0032] The connections mentioned in the present invention are divided into fixed connections and detachable connections. The fixed connection refers to a non-detachable connection, including but not limited to conventional fixed connection methods such as hem connection, rivet connection, adhesive connection, and welding connection. The detachable connection refers to but not limited to conventional detachable connection methods such as bolt connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly specified, it is assumed that at least one connection method can be found among the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example, a welded connection is selected for a fixed connection, and a bolted connection is selected for a detachable connection.

[0033] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are provided to explain the present invention, but the present invention is not limited to the following embodiments.

[0034] Example: Figures 1 to 7As shown, an L-shaped water-cooling cover body docking and disassembly lifting device is shown, the L-shaped water-cooling cover body 6 includes a vertical portion 61 and an oblique flat portion 62, the lower end of the oblique flat portion 62 is connected to the top of the vertical portion 61, and the vertical portion 61 and the oblique flat portion 62 are both equal straight structures with a V-shaped cross-section, the V-shaped opening of the vertical portion 61 is set forward, the high end of the oblique flat portion 62 extends obliquely backward and upward, and the V-shaped opening of the oblique flat portion 62 is set upward, and the left and right edges of the vertical portion 61 are provided with strip flanges 63, and the rear surface of the vertical portion 61 and the lower surface of the oblique flat portion 62 are both provided with a plurality of water-cooling grooves, and a plurality of skins 64 are correspondingly closed to form a plurality of water-cooling channels, one end of the water-cooling channel is provided with a cooling water inlet, and the other end of the water-cooling channel is provided with a cooling water outlet;

[0035] The sling comprises a lifting beam 1, a docking clamping sling 3 and an auxiliary bracket 4;

[0036] The docking clamping sling 3 includes a sling seat 31, a first V-shaped avoidance groove 32 extending vertically is provided in the middle of the front side of the sling seat 31, two positioning blocks 33 are respectively connected to the sling seat 31, and the two positioning blocks 33 are respectively located on the left and right sides of the first V-shaped avoidance groove 32. Two positioning holes are provided on the upper and lower sides of the positioning blocks 33. The hole spacing of the two positioning holes is set according to the flange hole spacing of the strip flange 63. The sling seat 31 is provided with two connecting arms 35 extending to the left and right sides respectively;

[0037] The auxiliary bracket 4 includes a U-shaped frame 41 and a support plate 45 arranged above and below. The U-shaped frame 41 is a frame with an open front side, and the support plate 45 is a rectangular flat plate. The four corners of the U-shaped frame 41 are connected to the four corners of the support plate 45 in a one-to-one correspondence through columns 44. The middle of the left side frame and the middle of the right side frame of the U-shaped frame 41 are connected through an upper plate 42. A second V-shaped avoidance groove 43 is opened on the front side of the upper plate 42. The spreader seat 31 is connected to the upper plate 42. The first V-shaped avoidance groove 32 is aligned with the second V-shaped avoidance groove 43.

[0038] Two eye screws 5 are provided on the upper end surface of the lifting beam 1, and the eye screws 5 are connected to the crane through the lifting belt 2. The lifting beam 1 is arranged on the left and right, and the two ends of the lifting beam 1 are respectively connected to the two connecting arms 35 in a one-to-one correspondence through the lifting belt 2;

[0039] When hoisting the L-shaped water-cooling cover 6, the lower end surface of the vertical portion 61 is abutted against the upper end surface of the support plate 45, and the rear V-shaped surface of the vertical portion 61 cooperates with the first V-shaped avoidance groove 32. The four positioning pins 34 pass through the four positioning holes on the two positioning blocks 33 in a one-to-one manner and cooperate with the corresponding flange holes on the strip flange 63 on the same side. The outer dimensions of the auxiliary bracket 4 are set according to the L-shaped water-cooling cover 6, so that when the L-shaped water-cooling cover 6 is hoisted, the center of gravity of the L-shaped water-cooling cover 6 is in the middle of the auxiliary bracket 4.

[0040] After the docking clamping sling 3 and the L-shaped water-cooling cover 6 are positioned and clamped with the positioning pins 34, use two lifting straps 2 to connect the connecting arm 35 to the lifting beam 1, start the crane to slowly approach the L-shaped water-cooling cover 6 along the lower direction of the equipment body to the test support frame until the V-shaped openings of the vertical part 61 and the oblique flat part 62 are respectively connected to the support frame, and the strip flanges 63 on both sides of the vertical part 61 and the oblique flat part 62 are fastened to the flanges of the test support frame by screws, loosen the top screws on the two positioning blocks 33, withdraw the four positioning pins 34 outward, and use the crane to withdraw the sling, and the docking of the L-shaped water-cooling cover 6 is completed.

[0041] After the hot run test is completed, when it is necessary to remove the L-shaped water-cooling cover 6, first remove the screws on the strip flanges 63 on both sides of the vertical part 61 and the oblique flat part 62, and connect the L-shaped water-cooling cover 6 to the two positioning blocks 33 through the positioning pins 34. In the lifting state, remove the remaining screws fixing the L-shaped water-cooling cover 6, and use the lifting fixture to remove and withdraw it. The support plate 45 supports the L-shaped water-cooling cover 6, and the L-shaped water-cooling cover 6 cooperates with the docking clamping hanger 3 to prepare for the next docking and lifting installation of the L-shaped water-cooling cover 6.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] 1. It is made of thick-walled rectangular tubes and channel steel and other profiles welded together, with good rigidity and simple structure. The flange holes of the strip flanges 63 on the left and right sides of the L-shaped water-cooling cover 6 are effectively used as positioning lifting points. The lifting point of the connecting arm 35 has a short extension distance, good stress state, stability and reliability, easy disassembly and assembly, and low manufacturing cost.

[0044] 2. The upper lifting beam 1 is used in conjunction with the lower docking clamping sling 3, which can effectively avoid the main structure on the supporting frame that has been installed in place, which is simple and convenient;

[0045] 3. An auxiliary bracket 4 is configured to keep the L-shaped water cooling cover in an upright state before and after disassembly and assembly, making it easy to align the disassembly and assembly, and having good practicality.

[0046] The auxiliary bracket 4 is made of square tubes, steel plates, angle steels and other profiles welded together. During the design, a second V-shaped avoidance groove 43 is opened on the front side of the upper plate 42 to avoid the V-shaped protrusion in the middle of the L-shaped water-cooling cover 6, so that the vertical part 61 of the L-shaped water-cooling cover 6 is erected on one side of the support plate 45. This setting can make the vertical part 61 maintain an upright posture, which is convenient for connecting with the supporting frame. In addition, the outer dimensions of the auxiliary bracket 4 are set according to the center of gravity of the L-shaped water-cooling cover 6, so that when the hoist lifts the L-shaped water-cooling cover 6, the center of gravity of the L-shaped water-cooling cover 6 is in the center of the auxiliary bracket 4, which can ensure the stability of the auxiliary bracket 4 and enable the L-shaped water-cooling cover 6 to maintain a posture of direct docking with the supporting frame when lifted.

[0047] The present invention relates to an L-shaped water-cooling cover body docking and disassembling lifting device, which utilizes its own structure to perform hoisting on an L-shaped water-cooling cover body 6 without a hoisting point, while maintaining a stable center of gravity during the hoisting process and smoothly docking with installation equipment.

[0048] This lifting device must be able to appropriately correct the center of gravity offset of the L-shaped water-cooling cover 6 after lifting, so that the L-shaped water-cooling cover 6 remains in the vertical position when docked, facilitating structural docking and installation. At the same time, to avoid the main structure, a lifting method is adopted in which the lifting straps 2 on both sides vertically connect the lifting beam 1 and the docking clamping lifting device 3.

[0049] A rubber sheet 36 is adhered to the inclined surface of the first V-shaped avoidance groove 32 to prevent the skin 64 on the rear surface of the L-shaped water-cooling cover 6 from being scratched.

[0050] The sling 2 is a flexible annular sling. Two eye screws 5 are provided on the lower end surface of the lifting beam 1. The two rigging shackles 21 are connected to the two eye screws 5 on the lower end surface of the lifting beam 1 in one-to-one correspondence. The upper end surfaces of the two connecting arms 35 opposite to each other are provided with eye screws 5. The two rigging shackles 21 are connected to the eye screws 5 on the two connecting arms 35 in one-to-one correspondence. One sling 2 is respectively connected to the rigging shackle 21 on the left side of the lifting beam 1 and the rigging shackle 21 on the left connecting arm 35, and the other sling 2 is respectively connected to the rigging shackle 21 on the right side of the lifting beam 1 and the rigging shackle 21 on the right connecting arm 35.

[0051] The eye screw 5 is an M16 eye screw.

[0052] The lifting beam 1 is a No. 12.6 channel steel component.

[0053] The sling seat 31 is a rectangular square tube component arranged on the left and right. The sling seat 31 is made of thick-walled rectangular tube, which has good load-bearing rigidity.

[0054] There are two blocks welded on the left and right sides of the upper plate 42, and blocks are welded on the front ends of the left and right side frames of the U-shaped frame 41 respectively. The rear side surface of the sling seat 31 is close to the two blocks on the upper plate 42 for limiting position, and the front side surface of the sling seat 31 is close to the blocks on the two side frames for limiting position.

[0055] Two fastening screw holes are provided on the positioning block 33, and one end of the two fastening screw holes is vertically connected to the middle of the two positioning through holes. The top screw is matched with the thread of the fastening screw hole. After the positioning pin shaft 34 is inserted into the positioning through hole, the top screw presses the corresponding positioning pin shaft 34 to ensure that the positioning pin shaft 34 does not fall out. The docking clamping hanger uses the method of inserting the positioning pin shaft (2 on each side) into the installation holes on both sides of the L-shaped water-cooling cover body to limit and fix the L-shaped water-cooling cover body, and applies lifting force to install and disassemble the L-shaped water-cooling cover body.

[0056] The above embodiments are merely illustrative of the present invention and do not limit its scope of protection. Those skilled in the art may make partial changes thereto, which are within the scope of protection of the present invention as long as they do not exceed the spirit of the present invention.

Claims

1. An L-shaped water-cooled cover docking disassembly and installation lifting tool. The L-shaped water-cooled cover (6) includes a vertical part (61) and an inclined flat part (62). The lower end of the inclined flat part (62) is connected to the top end of the vertical part (61). Both the vertical part (61) and the inclined flat part (62) are straight structures with a V-shaped cross-section. It is set that the V-shaped opening of the vertical part (61) faces forward, the high end of the inclined flat part (62) extends obliquely backward and upward, the V-shaped opening of the inclined flat part (62) faces upward. Strip-shaped flanges (63) are provided on both the left and right edges of the vertical part (61). A number of water-cooling grooves are opened on both the rear surface of the vertical part (61) and the lower surface of the inclined flat part (62). A number of skins (64) respectively enclose the number of water-cooling grooves to form a number of water-cooling channels. One end of the water-cooling channel is provided with a cooling water inlet, and the other end of the water-cooling channel is provided with a cooling water outlet; Its characteristics are: The lifting tool includes a lifting beam (1), a docking clamping lifting tool (3) and an auxiliary bracket (4); The docking clamping lifting tool (3) includes a lifting tool seat (31). A first V-shaped avoidance groove (32) that penetrates up and down is provided in the middle of the front side of the lifting tool seat (31). Two positioning blocks (33) are respectively connected to the lifting tool seat (31). The two positioning blocks (33) are respectively located on the left and right sides of the first V-shaped avoidance groove (32). Two positioning through holes are arranged up and down on the positioning block (33). The hole distance of the two positioning through holes is set according to the flange hole distance of the strip-shaped flange (63). Two connecting arms (35) that extend to the left and right sides respectively are provided on the lifting tool seat (31); The auxiliary bracket (4) includes a U-shaped frame (41) and a support plate (45) arranged up and down. The U-shaped frame (41) is a frame with an open front side. The support plate (45) is a rectangular flat plate. The four corners of the U-shaped frame (41) and the four corners of the support plate (45) are respectively connected by columns (44). The middle parts of the left side frame and the right side frame of the U-shaped frame (41) are connected by an upper plate (42). A second V-shaped avoidance groove (43) is opened on the front side of the upper plate (42). The lifting tool seat (31) is connected to the upper plate (42). The first V-shaped avoidance groove (32) coincides and aligns with the second V-shaped avoidance groove (43); Two lifting ring screws (5) are provided on the upper end surface of the lifting beam (1). The lifting beam (1) is arranged left and right. The two ends of the lifting beam (1) are respectively connected to the two connecting arms (35) through sling straps (2); When hoisting the L-shaped water-cooled cover (6), the lower end surface of the vertical part (61) abuts against the upper end surface of the support plate (45). The rear V-shaped surface of the vertical part (61) cooperates with the first V-shaped avoidance groove (32). Four positioning pins (34) respectively pass through the four positioning through holes on the two positioning blocks (33) and cooperate with the corresponding flange holes on the strip-shaped flange (63) on the same side. The external dimensions of the auxiliary bracket (4) are set according to the L-shaped water-cooled cover (6). When hoisting the L-shaped water-cooled cover (6), the center of gravity of the L-shaped water-cooled cover (6) is located in the middle of the auxiliary bracket (4).

2. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: A rubber plate (36) is pasted on the inclined surface of the first V-shaped avoidance groove (32).

3. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: The sling (2) is a flexible annular sling. Two eye screws (5) are provided on the lower end surface of the lifting beam (1). Two rigging shackles (21) are connected to the two eye screws (5) on the lower end surface of the lifting beam (1) in a one-to-one correspondence. The upper end surfaces of the two connecting arms (35) at opposite ends are both provided with eye screws (5). The two rigging shackles (21) are connected to the eye screws (5) on the two connecting arms (35) in a one-to-one correspondence. One sling (2) is respectively connected to the rigging shackle (21) on the left side of the lifting beam (1) and the rigging shackle (21) on the left connecting arm (35), and the other sling (2) is respectively connected to the rigging shackle (21) on the right side of the lifting beam (1) and the rigging shackle (21) on the right connecting arm (35).

4. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: The eyebolt (5) is an M16 eyebolt.

5. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: The lifting beam (1) is a No. 12.6 channel steel member.

6. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: The sling seat (31) is a rectangular square tube component arranged on the left and right sides. The sling seat (31) is made of a thick-walled rectangular tube and has good load-bearing rigidity.

7. The L-shaped water-cooling cover assembly and disassembly lifting device according to claim 1, characterized in that: Two blocks are welded on the left and right sides of the upper plate (42), and blocks are welded on the front ends of the left and right side frames of the U-shaped frame (41). The rear side of the sling seat (31) is close to the two blocks on the upper plate (42) for limiting position, and the front side of the sling seat (31) is close to the blocks on the two side frames for limiting position.

8. The L-shaped water-cooling cover assembly and disassembly lifting device according to any one of claims 1 to 7, characterized in that: Two tightening screw holes are provided on the positioning block (33), one end of the two tightening screw holes is vertically connected to the middle of the two positioning through holes, and the top screw is threadedly matched with the tightening screw hole. After the positioning pin shaft (34) is inserted into the positioning through hole, the top screw presses the corresponding positioning pin shaft (34) to ensure that the positioning pin shaft (34) does not fall out.

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