L-shaped water-cooling cover body butt joint disassembly and assembly lifting appliance

Abstract

The invention discloses an L-shaped water-cooling cover body butt joint disassembly and assembly lifting appliance, belongs to the technical field of lifting, and aims to solve the problem that lifting points or mounting holes cannot be formed in the surfaces of L-shaped water-cooling cover bodies. Comprising a butt-joint clamping lifting appliance, the butt-joint clamping lifting appliance comprises a lifting appliance seat, a first V-shaped receding groove is formed in the front side of the lifting appliance seat, two positioning blocks are connected with the lifting appliance seat respectively, two positioning via holes are formed in each positioning block, and the distance between the two positioning via holes is set according to the distance between flange holes of the strip-shaped flange of the L-shaped water-cooling cover. Two connecting arms which respectively extend towards the left side and the right side are arranged on the lifting appliance seat; the lifting appliance seat is connected with the auxiliary bracket, the auxiliary bracket supports the L-shaped water-cooling cover body, the V-shaped surface of the rear side of the L-shaped water-cooling cover body is matched with the first V-shaped avoiding groove, and the two ends of the lifting beam are connected with the two connecting arms in a one-to-one correspondence mode through lifting belts; the invention relates to an L-shaped water-cooling cover butt joint disassembly and assembly lifting appliance which is used for lifting on an L-shaped water-cooling cover without a lifting point by utilizing the structure of the L-shaped water-cooling cover and can keep the gravity center stable in the lifting 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 body butting and disassembling lifting device. Background Art

[0002] Slings refer to the connecting parts between the crane and the object being hoisted, and are a general term for slings and slings. Slings are ropes made of steel wire ropes or synthetic fibers for hoisting. 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 objects being hoisted, and use universal finished slings to connect the crane and the objects being hoisted for hoisting. The use of universal finished slings for hoisting has the advantages of simple structure, strong versatility, and fast technical preparation. However, for some objects that are not convenient to set lifting rings or lifting point structures, special-shaped objects, and objects with large deviations in the center of gravity, specially designed slings are required for hoisting.

[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 because there are no lifting points. For special-shaped objects and objects with large deviations in the center of gravity, large tilts and instability may occur during lifting. For example, an L-shaped water-cooling cover has an asymmetric L-shaped structure, including a vertical part and an inclined flat part. The lower end of the inclined 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 inclined flat part outside the cover structure. Both the vertical part and the inclined flat part are equal straight structures with V-shaped cross sections. 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 a plurality of water cooling grooves are opened on the rear surface of the vertical part and the lower surface of the inclined flat part. A plurality of skins correspond to and close a plurality of water cooling grooves to form a plurality of water cooling channels, a cooling water inlet is provided at one end of the water cooling channel, and a cooling water outlet is provided at the other end of the water cooling channel. The L-shaped water cooling cover body is entirely a cooling surface with a special structure, and no hanging points or mounting holes can be set on the surface of the cover body.

[0004] The L-shaped water-cooling cover is a cooling component on the equipment hot test bench. Before the on-site hot test, the water-cooling cover must be installed on the support frame after the equipment is installed on the support frame. After the hot test, the L-shaped water-cooling cover must be removed from the support frame before the equipment is removed. When the equipment is installed on the support frame, a special lifting device must be designed and manufactured for the removal and installation of the water-cooling cover. The lifting device must be able to reliably position and clamp the L-shaped water-cooling cover and effectively avoid 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 body docking and disassembly lifting device to solve the problem that the surface of the L-shaped water-cooling cover body 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 joint disassembly and assembly lifting device, the L-shaped water-cooling cover body comprises a vertical part and an inclined flat part, the lower end of the inclined flat part is connected to the top end of the vertical part, the vertical part and the inclined 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 both provided with strip flanges, the rear surface of the vertical part and the lower surface of the inclined flat part are both provided with a plurality of water-cooling grooves, a plurality of skins are one-to-one corresponding 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 lifting device comprises a lifting beam, a butt clamping lifting device and an auxiliary bracket;

[0008] The docking clamping sling includes a sling seat, a first V-shaped avoidance groove penetrating from top to bottom is provided in the middle of the front side of the sling seat, 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 through holes are provided on the positioning blocks, the hole spacing of the two positioning through holes is set according to the flange hole spacing of the strip flange, and two connecting arms extending to the left and right sides are provided on the sling seat;

[0009] The auxiliary bracket includes a U-shaped frame and a support plate arranged in an upper and lower manner. The U-shaped frame is a frame with an opening on the 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 in a one-to-one correspondence through columns. The middle of the left side frame of the U-shaped frame and the middle of the right side frame are connected through an upper plate. A second V-shaped avoidance groove is opened on the front side of the upper plate. The sling seat is connected to the upper plate, and the first V-shaped avoidance groove is aligned with the second V-shaped avoidance groove.

[0010] Two eye screws are arranged on the upper end surface of the lifting beam. The lifting beam is arranged on the left and right sides. The two ends of the lifting beam are respectively connected to the two connecting arms one by one through a lifting belt;

[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 locating holes on the two locating blocks one by one, 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 adhered to the inclined surface of the first V-shaped avoidance groove.

[0013] Furthermore, the sling is a flexible annular sling, two lifting eye screws are provided on the lower end surface of the lifting beam, 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, lifting eye screws are provided on the upper end surfaces of the two connecting arms opposite to each other, 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 member.

[0016] Furthermore, the hanger 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 respectively welded on the front ends of the left and right side frames of the U-shaped frame. 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 fixing screw holes are provided on the positioning block, one end of the two fixing screw holes is vertically connected to the middle of the two positioning through holes, and the top screw cooperates with the threads of the fixing screw holes. 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 outward.

[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, with good rigidity and simple structure. The flange holes of the strip flanges on the left and right sides of the L-shaped water-cooling cover are effectively used 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 and the lower docking clamping sling are used together to avoid the main structure on the supporting frame that has been installed in place, which is simple and convenient.

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

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

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

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

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

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

[0028] Figure 6 It 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] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but not limited to conventional detachable methods such as bolt connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can be found in the existing connection methods to achieve the function, and those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and bolt connection is selected for detachable connection.

[0033] The present invention will be further described in detail below in conjunction with 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: Figure 1 to Figure 7As shown, an L-shaped water-cooling cover body docking and disassembly lifting device, the L-shaped water-cooling cover body 6 includes a vertical portion 61 and an inclined flat portion 62, the lower end of the inclined flat portion 62 is connected to the top of the vertical portion 61, the vertical portion 61 and the inclined 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 inclined flat portion 62 extends obliquely backward and upward, the V-shaped opening of the inclined flat portion 62 is set upward, the left and right edges of the vertical portion 61 are provided with strip flanges 63, the rear surface of the vertical portion 61 and the lower surface of the inclined flat portion 62 are both provided with a plurality of water-cooling grooves, a plurality of skins 64 are closed one by one with a plurality of water-cooling grooves, so as 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 lifting device comprises a lifting beam 1, a docking clamping lifting device 3 and an auxiliary bracket 4;

[0036] The docking clamping sling 3 includes a sling seat 31, a first V-shaped avoidance groove 32 penetrating from top to bottom 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, and two positioning holes are provided on the upper and lower sides of the positioning blocks 33, and the hole spacing of the two positioning holes is set according to the flange hole spacing of the strip flange 63, and 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 in an upper and lower manner. The U-shaped frame 41 is a frame with an opening at the 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 hanger seat 31 is connected to the upper plate 42, and the first V-shaped avoidance groove 32 is aligned with the second V-shaped avoidance groove 43.

[0038] Two eyebolts 5 are provided on the upper end surface of the lifting beam 1, and the eyebolts 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 body 6, the lower end surface of the vertical portion 61 is abutted against the upper end surface of the support plate 45, the rear V-shaped surface of the vertical portion 61 cooperates with the first V-shaped avoidance groove 32, and 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 body 6, so that when the L-shaped water-cooling cover body 6 is hoisted, the center of gravity of the L-shaped water-cooling cover body 6 is in the middle of the auxiliary bracket 4.

[0040] After the docking and clamping hanger 3 and the L-shaped water-cooling cover body 6 are positioned and clamped with the positioning pin shaft 34, the connecting arm 35 is connected to the lifting beam 1 with two lifting straps 2, and the crane is started to make the L-shaped water-cooling cover body 6 slowly approach the test run support frame along the lower direction of the equipment body until the V-shaped openings of the vertical part 61 and the inclined flat part 62 are respectively connected with the support frame, and the strip flanges 63 on both sides of the vertical part 61 and the inclined flat part 62 are fastened to the flanges of the test run support frame by screws, loosen the top screws on the two positioning blocks 33, withdraw the four positioning pin shafts 34 outward, and withdraw the hanger with the crane, and the docking of the L-shaped water-cooling cover body 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 inclined flat part 62, and connect the L-shaped water-cooling cover 6 with the two positioning blocks 33 through the positioning pins 34. In the lifting state, remove the remaining screws that fix the L-shaped water-cooling cover 6, and use the lifting device 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, 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, stable and reliable, easy to disassemble and assemble, and low manufacturing cost.

[0044] 2. The upper lifting beam 1 is used in conjunction with the lower docking clamping sling 3, which can 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 facilitate the L-shaped water cooling cover to remain in an upright state before and after disassembly and assembly, and is convenient for disassembly and assembly alignment, and has 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 body 6, so that the vertical portion 61 of the L-shaped water-cooling cover body 6 is erected on one side of the support plate 45. This arrangement can keep the vertical portion 61 in an upright position, 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 body 6, so that when the hoisting device hoists the L-shaped water-cooling cover body 6, the center of gravity of the L-shaped water-cooling cover body 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 body 6 to maintain a posture of direct docking with the supporting frame when hoisted.

[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 needs to be able to properly correct the center of gravity position deviation of the L-shaped water-cooling cover 6 after lifting, so that the L-shaped water-cooling cover 6 can maintain the vertical state when docking after lifting, which is convenient for structural docking and installation. At the same time, in order to avoid the main structure, a lifting method is adopted in which the lifting belts 2 on both sides are vertically connected to the lifting beam 1 and the docking clamping lifting device 3.

[0049] A rubber sheet 36 is pasted on the inclined surface of the first V-shaped avoidance groove 32 to avoid scratching the skin 64 on the rear side surface of the L-shaped water-cooling cover 6 .

[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. 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 manner. Eye screws 5 are provided on the upper end surfaces of the two connecting arms 35 at the opposite ends. The two rigging shackles 21 are connected to the eye screws 5 on the two connecting arms 35 in a one-to-one manner. 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 member.

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

[0054] Two blocks are welded on the left and right sides of the upper plate 42, and blocks are respectively welded on the front ends of the left and right side frames of the U-shaped frame 41. 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 fixing screw holes are provided on the positioning block 33, and one end of the two fixing screw holes is vertically connected to the middle parts of the two positioning through holes. The top screw cooperates with the thread of the fixing screw hole. After the positioning pin 34 is inserted into the positioning through hole, the top screw presses the corresponding positioning pin 34 to ensure that the positioning pin 34 does not fall out. The docking clamping hanger adopts the method of inserting the positioning pins (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 a lifting force to install and disassemble the L-shaped water-cooling cover body.

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

Claims

1. An L-shaped water-cooling cover body docking and disassembly lifting device, the L-shaped water-cooling cover body (6) comprising a vertical portion (61) and an inclined flat portion (62), the lower end of the inclined flat portion (62) is connected to the top end of the vertical portion (61), the vertical portion (61) and the inclined 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 inclined flat portion (62) extends obliquely backward and upward, the V-shaped opening of the inclined flat portion (62) is set upward, the left and right edges of the vertical portion (61) are both provided with strip flanges (63), the rear surface of the vertical portion (61) and the lower surface of the inclined flat portion (62) are both provided with a plurality of water-cooling grooves, a plurality of skins (64) correspond to and close 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; Features: The lifting device comprises a lifting beam (1), a docking and clamping lifting device (3) and an auxiliary bracket (4); The docking clamping sling (3) comprises a sling seat (31), a first V-shaped avoidance groove (32) which passes through the sling seat (31) from top to bottom is provided in the middle of the front side, two positioning blocks (33) are respectively connected to the sling 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 provided on the positioning blocks (33) from top to bottom, the hole spacing of the two positioning through holes is set according to the hole spacing of the flange holes of the strip flange (63), and two connecting arms (35) are respectively extended to the left and right sides; The auxiliary bracket (4) comprises a U-shaped frame (41) and a support plate (45) arranged in an upper and lower manner, the U-shaped frame (41) is a frame with an opening at the front side, 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 sling seat (31) is connected to the upper plate (42), and the first V-shaped avoidance groove (32) and the second V-shaped avoidance groove (43) are overlapped and aligned; Two eye screws (5) are provided on the upper end surface of the lifting beam (1), and the lifting beam (1) is arranged on the left and right sides. 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); When the L-shaped water-cooling cover (6) is hoisted, the lower end surface of the vertical portion (61) abuts against the upper end surface of the support plate (45), the rear V-shaped surface of the vertical portion (61) cooperates with the first V-shaped avoidance groove (32), and the four positioning pins (34) pass through the four positioning holes on the two positioning blocks (33) in a one-to-one correspondence 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 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 adhered to 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 eyebolts (5) are arranged on the lower end surface of the lifting beam (1). Two rigging shackles (21) are connected to the two eyebolts (5) on the lower end surface of the lifting beam (1) in a one-to-one correspondence. Eyebolts (5) are arranged on the upper end surfaces of the two connecting arms (35) at opposite ends. The two rigging shackles (21) are connected to the eyebolts (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 joint 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. 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), 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.

8. An L-shaped water-cooling cover joint assembly and disassembly lifting device according to any one of claims 1 to 7, characterized in that: The positioning block (33) is provided with two fixing screw holes, one end of the two fixing screw holes is vertically connected to the middle of the two positioning through holes, and the top screw is threadedly matched with the fixing 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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