Low-altitude hoisting device for ground assembled net rack welding balls

Abstract

The invention discloses a ground assembled net rack welding ball low-altitude hoisting device which comprises a first clamp and a second clamp, supporting plates allowing the second clamp to slide are fixed to the two ends of the first clamp, and the two supporting plates are connected with the second clamp through adjusting assemblies; according to the scheme, the carrying device is formed through the first clamp and the second clamp firstly, the welding ball is placed in the first clamp and the second clamp, low-altitude carrying can be conducted on the welding ball, meanwhile, the second clamp is driven to move under the movement of the adjusting assembly, and the distance between the first clamp and the second clamp can be adjusted; according to the welding ball carrying device, the first clamp and the second clamp are matched to adapt to welding balls with different diameters, the welding balls with different diameters can be conveniently carried, the second clamp is conveniently locked and fixed under the cooperation of the locking assembly, the distance between the first clamp and the second clamp can be locked and fixed, and sliding movement between the first clamp and the second clamp is avoided; and therefore, stable carrying of the welding balls is facilitated, and the carrying efficiency of the welding balls is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of low-altitude lifting of welding balls, and in particular relates to a low-altitude lifting device for welding balls assembled on a ground grid. Background Art

[0002] In recent years, with the development of steel structure, there are more and more buildings with large space structures, and large space building structures mostly adopt the structural form of space grid and lattice shell. For grid and lattice shell structures, the nodes of the rods mostly adopt the form of welded ball nodes, and the specifications of the welded balls range from 200mm to 1000mm in diameter.

[0003] In the related art, for the welded ball grid frame using the overall or segmented lifting method, the welded ball grid frame needs to be assembled on the ground first. For the lifting and fixing of the welded ball, previous projects often adopt the method of welding the lifting lug on the top of the welded ball and using equipment such as a car crane for lifting. However, the method of welding the lifting lug requires hooking and unhooking operations, and the lifting speed is slow. When the lifting lug needs to be cut off after the welded ball is fixed, the steel ball base material may be damaged, which brings trouble to the subsequent construction. Therefore, those skilled in the art provide a ground-assembled grid frame welded ball low-altitude lifting device to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a low-altitude lifting device for ground-assembled grid welded balls to solve the technical problem of slow lifting speed in the above-mentioned background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A ground-assembled grid frame welded ball low-altitude lifting device, comprising: a first clamp and a second clamp, both ends of the first clamp are fixed with support plates for the second clamp to slide, the two support plates are connected to the second clamp through an adjustment component, both sides of the first clamp and both sides of the second clamp are fixed with pads, the tops of the four pads are provided with mounting frames, the bottoms of the four mounting frames are fixed with mounting plates interlaced with the pads, the four mounting frames are provided with connecting plates, and the two connecting plates on the same side are fixedly connected by steel wire ropes;

[0007] Two locking assemblies, which are respectively arranged on one side of the two support plates, and the two locking assemblies are respectively connected to the two adjustment assemblies to lock and fix the adjustment assemblies;

[0008] Four mounting components, which are respectively arranged in four mounting plates and located below the pad, and are used to fix the mounting plates;

[0009] Four connecting components are respectively arranged inside the four mounting frames, and the four connecting components are respectively connected to the four connecting plates for fixing the connecting plates.

[0010] Further: the adjustment assembly includes a first slider fixedly arranged at the end of the second clamp, and a first sliding groove for sliding the first slider is opened on one side of the support plate, a screw rod threadedly connected to the first slider is rotatably connected in the first sliding groove, and one end of the screw rod passes through the outside of the support plate and is fixed with a turning handle.

[0011] Further: the locking assembly includes a locking disk sleeved on the outer wall of the screw rod, one side of the locking disk is provided with a plurality of locking grooves in a ring shape, one side of the support plate is slidably provided with an L-shaped plate, one side of the L-shaped plate is fixed with a locking block adapted to the locking groove, the L-shaped plate is connected to the support plate through a sliding assembly, and one side of the support plate is provided with a driving assembly for driving the L-shaped plate to move.

[0012] Further: the mounting assembly includes grooves opened on both sides of the mounting plate, and mounting blocks are inserted into the two grooves, and the two mounting blocks are fixedly connected to the grooves by springs respectively, and side panels are fixed on both sides of the bottom end of the pad, and the opposite sides of the two side panels are provided with mounting grooves adapted to the mounting blocks, and the bottom end of the mounting plate is provided with a pulling assembly for driving the mounting blocks to move.

[0013] Further: the connecting assembly includes shaft seats fixedly arranged on both sides of the inner wall of the mounting frame, the two shaft seats are rotatably connected to the rotating shaft, the outer walls of the two rotating shafts are sleeved with U-shaped clamps that interfere with the connecting plate, one end of the two rotating shafts is fixed with a pulley, the two pulleys are connected by a belt drive, one end of one of the rotating shafts passes through the outside of the mounting frame and is fixed with a first knob, and the outer wall of the rotating shaft is threadedly connected with a first fastening nut.

[0014] Furthermore: the sliding assembly includes a second sliding block fixedly arranged on one side of the L-shaped plate, and a second sliding groove for sliding the second sliding block is opened on one side of the support plate.

[0015] Further: the driving assembly includes a rotating frame fixedly arranged on one side of the supporting plate, a rotating rod is rotatably connected inside the rotating frame, a rotating plate is sleeved on the outer wall of the rotating rod, a third sliding groove is opened on one side of the rotating plate, a third sliding block sliding with the third sliding groove is fixed on one side of the L-shaped plate, a second knob is fixed on one end of the rotating rod, and a second fastening nut is threadedly connected to the outer wall of the rotating rod.

[0016] Further: the pulling assembly includes pull ropes fixedly arranged on one side of the two mounting blocks respectively, the two pull ropes both penetrate the bottom of the mounting plate, the two grooves are rotatably connected with pulleys for sliding the pull ropes, the two ends of the pull ropes located at the bottom of the mounting plate are fixedly connected through a pull plate, and a handle is fixed at the bottom end of the pull plate.

[0017] Furthermore: the connecting plate is connected to the mounting frame via a positioning assembly, the positioning assembly comprises a positioning column fixedly arranged at the bottom end of the connecting plate, and a positioning groove adapted to the positioning column is formed at the bottom end of the inner wall of the mounting frame.

[0018] Furthermore: the mounting frame is connected to the pad through a supporting assembly, the supporting assembly includes a supporting rod fixedly arranged at the bottom end of the mounting frame, the top end of the pad is provided with a supporting groove adapted to the supporting rod, and the outer wall of the supporting rod is fixed with a supporting column which interferes with the supporting groove.

[0019] In summary, the present invention has the following beneficial effects:

[0020] ① First, a transport device is formed by the first clamp and the second clamp, and the welding ball is placed in the first clamp and the second clamp, so that the welding ball can be transported at low altitude. At the same time, the movement of the adjusting component drives the movement of the second clamp, and the distance between the first clamp and the second clamp can be adjusted to adapt to welding balls of different diameters, which is convenient for transporting welding balls of different diameters. With the cooperation of the locking component, the second clamp can be locked and fixed, and the distance between the first clamp and the second clamp can be locked and fixed to avoid slipping between the first clamp and the second clamp, thereby facilitating the stable transportation of the welding ball and improving the transportation efficiency of the welding ball.

[0021] ②Insert the mounting plate at the bottom of the mounting frame into the pad, and then fix the mounting plate with the cooperation of the mounting assembly to fix the mounting frame. When the mounting frame needs to be removed, separate the mounting block from the mounting slot with the cooperation of the pulling assembly, so that the mounting block is stored in the mounting plate, and then pull the mounting frame upward to remove the mounting plate from the pad, which is convenient for the installation and disassembly of the mounting frame, thereby facilitating the connection and use of the wire rope and the rapid transportation of the welding ball.

[0022] ③ When connecting the wire rope, place the connecting plate at the end of the wire rope into the mounting frame, position the connecting plate through the positioning assembly, and then fix the connecting plate with the cooperation of the connecting assembly, thereby fixing the wire rope, facilitating the rapid connection of the wire rope, and avoiding wire slippage and rotation caused by the pulling of the wire rope, facilitating the stable lifting and transportation of the welding ball, and improving the transportation effect of the welding ball. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a schematic diagram of the support plate structure of the present invention;

[0025] Figure 3 The present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 4 It is a schematic diagram of the planar structure of the mounting frame of the present invention;

[0027] Figure 5 It is a schematic diagram of the planar structure of the mounting plate of the present invention;

[0028] Figure 6 It is a schematic diagram of the top plan structure of the mounting frame of the present invention;

[0029] In the figure, 1, the first clamp; 2, the second clamp; 3, the support plate; 4, the adjustment component; 41, the first slider; 42, the first slide groove; 43, the screw rod; 44, the handle; 5, the pad; 6, the mounting frame; 7, the mounting plate; 8, the wire rope; 9, the connecting plate; 10, the locking component; 101, the locking plate; 102, the locking groove; 103, the L-shaped plate; 104, the locking block; 11, the mounting component; 111, the groove; 112, the mounting block; 113, the spring; 114, the side plate; 115, the mounting groove; 12, the connecting component; 121, the shaft seat; 122, the rotating shaft; 123, the U-shaped clamp; 124, the pulley; 1 25. belt; 126. first knob; 127. first fastening nut; 13. sliding assembly; 131. second slider; 132. second slide slot; 14. driving assembly; 141. rotating frame; 142. rotating rod; 143. rotating plate; 144. third slide slot; 145. third slider; 146. second knob; 147. second fastening nut; 15. pulling assembly; 151. pull rope; 152. pulley; 153. pulling plate; 154. handle; 16. positioning assembly; 161. positioning column; 162. positioning slot; 17. supporting assembly; 171. supporting rod; 172. supporting slot; 173. supporting column. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1-Figure 6 , the present invention provides a technical solution:

[0032] Embodiment 1:

[0033] Reference Figure 1-3, a ground-assembled grid welding ball low-altitude lifting device comprises: a first clamp 1 and a second clamp 2, both ends of the first clamp 1 are fixed with a support plate 3 for the second clamp 2 to slide, the two support plates 3 are connected to the second clamp 2 through an adjusting component 4, two locking components 10 are respectively arranged on one side of the two support plates 3, and the two locking components 10 are respectively connected to the two adjusting components 4 for locking and fixing the adjusting components 4; the adjusting component 4 comprises a first slider 41 fixedly arranged at the end of the second clamp 2, a first slide groove 42 for the first slider 41 to slide is provided on one side of the support plate 3, a screw rod 43 threadedly connected to the first slider 41 is rotatably connected in the first slide groove 42, one end of the screw rod 43 passes through the outside of the support plate 3 and is fixed with a turning handle 44, the locking component 10 comprises a locking disk 101 sleeved on the outer wall of the screw rod 43, one side of the locking disk 101 is annularly provided with a plurality of locking grooves 102, and one side of the support plate 3 can be An L-shaped plate 103 is provided for sliding, and a locking block 104 adapted to the locking groove 102 is fixed on one side of the L-shaped plate 103. The L-shaped plate 103 is connected to the supporting plate 3 through a sliding assembly 13. A driving assembly 14 for driving the L-shaped plate 103 to move is provided on one side of the supporting plate 3. The sliding assembly 13 includes a second sliding block 131 fixedly arranged on one side of the L-shaped plate 103, and a second sliding groove 132 for the second sliding block 131 to slide is provided on one side of the supporting plate 3. The driving assembly 14 includes a rotating frame 141 fixedly arranged on one side of the supporting plate 3, a rotating rod 142 is rotatably connected in the rotating frame 141, a rotating plate 143 is sleeved on the outer wall of the rotating rod 142, and a third sliding groove 144 is provided on one side of the rotating plate 143, and a third sliding block 145 sliding with the third sliding groove 144 is fixed on one side of the L-shaped plate 103, a second knob 146 is fixed on one end of the rotating rod 142, and a second fastening nut 147 is threadedly connected to the outer wall of the rotating rod 142.

[0034] In this embodiment, firstly, a transport device is formed by the first clamp 1 and the second clamp 2, which plays a role in transporting welding balls of different diameters at low altitude. When welding balls of different diameters need to be transported, the two turning handles 44 are manually rotated at the same time, and the two turning handles 44 drive the two screw rods 43 to rotate at the same time. The two screw rods 43 drive the two first sliders 41 to move synchronously at the same time. The two first sliders 41 drive the movement of the second clamp 2, and the distance between the second clamp 2 and the first clamp 1 is adjusted so that the distance between them can adapt to welding balls of different diameters. Then, the second knob 146 is manually rotated, and the second knob 146 drives the rotation of the rotating rod 142, and the rotating rod 142 drives the rotation of the rotating plate 143. At the same time, with the cooperation of the third slider 145 and the third slide groove 144 , which can drive the movement of the L-shaped plate 103, and under the sliding cooperation of the second slider 131 and the second slide groove 132, the movement of the L-shaped plate 103 is maintained stable, and the L-shaped plate 103 drives the movement of the locking block 104, so that the locking block 104 is inserted into the corresponding locking groove 102, and then the second fastening nut 147 on the rotating rod 142 is tightened to fix the rotating rod 142, so that the locking plate 101 can be fixed, and the screw rod 43 can be fixed to avoid the screw rod 43 from slipping, thereby facilitating the transportation of welding balls of different diameters, and at the same time facilitating the locking and fixing between the first clamp 1 and the second clamp 2 to avoid the slipping movement between the first clamp 1 and the second clamp 2, thereby facilitating the stable transportation of the welding balls and improving the transportation efficiency of the welding balls.

[0035] Embodiment 2:

[0036] Reference Figure 4-5, pads 5 are fixed on both sides of the first clamp 1 and both sides of the second clamp 2, mounting frames 6 are provided on the tops of the four pads 5, mounting plates 7 interlaced with the pads 5 are fixed on the bottom ends of the four mounting frames 6, four mounting components 11 are respectively arranged in the four mounting plates 7 and located below the pads 5 for fixing the mounting plates 7, the mounting components 11 include grooves 111 opened on both sides of the mounting plates 7, mounting blocks 112 are interlaced and connected in the two grooves 111, and the two mounting blocks 112 are fixedly connected to the grooves 111 by springs 113, side plates 114 are fixed on both sides of the bottom end of the pad 5, mounting grooves 115 adapted to the mounting blocks 112 are provided on the opposite sides of the two side plates 114, and the bottom end of the mounting plate 7 is provided with a belt A pulling assembly 15 for moving the movable mounting block 112 includes pulleys 151 fixedly arranged on one side of the two mounting blocks 112, the two pull ropes 151 both penetrate the bottom of the mounting plate 7, and the two grooves 111 are rotatably connected with pulleys 152 for sliding the pull ropes 151. One end of the two pull ropes 151 at the bottom of the mounting plate 7 is fixedly connected through a pull plate 153, and a handle 154 is fixed at the bottom of the pull plate 153. The mounting frame 6 is connected to the pad 5 through a supporting assembly 17. The supporting assembly 17 includes a supporting rod 171 fixedly arranged at the bottom end of the mounting frame 6, and a supporting groove 172 adapted to the supporting rod 171 is provided at the top end of the pad 5, and a supporting column 173 in conflict with the supporting groove 172 is fixed to the outer wall of the supporting rod 171.

[0037] In this embodiment, after the connection and adjustment of the first clamp 1 and the second clamp 2 are completed, the mounting plate 7 at the bottom of the mounting frame 6 is inserted into the pad 5, and the support rod 171 at the bottom of the mounting frame 6 is inserted into the support groove 172. With the cooperation of the support rod 171 and the support column 173, it is convenient to provide auxiliary support for the mounting frame 6 to maintain the stability of the connection of the mounting frame 6. When it is fully inserted, the elastic action of the spring 113 drives the movement of the mounting block 112, so that the mounting block 112 is inserted into the mounting groove 115. Since the mounting block 112 and the mounting groove 115 are located on the pad 5, so that under the interference of the mounting block 112, the mounting plate 7 can be fixed, thereby facilitating the fixing of the mounting frame 6. When it needs to be removed, the handle 154 is manually pulled downward, and the handle 154 drives the pull plate 153 to move downward, and the pull plate 153 pulls the pull rope 151 downward, and the pull rope 151 drives the mounting block 112 to separate from the mounting groove 115, so that the mounting block 112 is stored in the mounting plate 7, and then the mounting frame 6 is pulled upward, the mounting plate 7 can be removed from the pad 5, which is convenient for the installation and disassembly of the mounting frame 6, thereby facilitating the connection and use of the wire rope 8.

[0038] Embodiment three:

[0039] Reference Figure 4 and Figure 6, a connecting plate 9 is provided in each of the four mounting frames 6, and the two connecting plates 9 on the same side are fixedly connected by a steel wire rope 8, and four connecting components 12 are respectively arranged inside the four mounting frames 6, and the four connecting components 12 are respectively connected to the four connecting plates 9 for fixing the connecting plates 9, and the connecting components 12 include shaft seats 121 fixedly arranged on both sides of the inner wall of the mounting frame 6, and the two shaft seats 121 are rotatably connected with a rotating shaft 122, and the outer walls of the two rotating shafts 122 are sleeved with a U-shaped clamping plate 123 that conflicts with the connecting plate 9, and the two A pulley 124 is fixed at one end of each rotating shaft 122, and the two pulleys 124 are connected by a belt 125. One end of one of the rotating shafts 122 passes through the outside of the mounting frame 6 and is fixed with a first knob 126, and the outer wall of the rotating shaft 122 is threadedly connected with a first fastening nut 127. The connecting plate 9 is connected to the mounting frame 6 through a positioning assembly 16. The positioning assembly 16 includes a positioning column 161 fixedly arranged at the bottom end of the connecting plate 9, and a positioning groove 162 adapted to the positioning column 161 is opened at the bottom end of the inner wall of the mounting frame 6.

[0040] In this embodiment, after the mounting bracket 6 is fixed, the four mounting brackets 6 are symmetrically distributed outside the first clamp 1 and the second clamp 2, and then the two ends of one of the steel wire ropes 8 are connected to the two mounting brackets 6 on the first clamp 1, and the two ends of the other steel wire rope 8 are connected to the two mounting brackets 6 on the second clamp 2. Specifically, the connecting plate 9 at the end of the steel wire rope 8 is placed in the mounting bracket 6, and the connecting plate 9 simultaneously drives the positioning column 161 to be inserted into the positioning groove 162 to position and fix the connecting plate 9, and then manually rotate the first knob 126, the first knob 126 drives the rotating shaft 122 to rotate, and at the same time, under the transmission cooperation of the pulley 124 and the belt 125, the two rotating shafts 122 can be driven to rotate synchronously, and the two rotating shafts 122 can drive The two U-shaped clamps 123 rotate, and the two U-shaped clamps 123 are set in opposite directions. In this way, when the two pulleys 124 synchronously drive the two U-shaped clamps 123 to rotate, it is convenient to make the two U-shaped clamps 123 rotate in the direction of the connecting plate 9, so that the U-shaped clamps 123 rotate to be perpendicular to the connecting plate 9, so that the connecting plate 9 is located in the middle U-shaped groove of the U-shaped clamp 123, and then tighten the first fastening nut 127 on the rotating shaft 122. In this way, under the action of the U-shaped clamp 123, the connecting plate 9 can be fixed, thereby fixing the wire rope 8, facilitating the rapid connection of the wire rope 8, and avoiding the occurrence of slipping rotation under the pulling of the wire rope 8, facilitating the stable lifting and transportation of the welding ball, and improving the transportation effect of the welding ball.

[0041] Brief description of the usage process:

[0042] When in use, firstly, the first clamp 1 and the second clamp 2 are adjusted according to the diameter of the welding ball to be transported. Specifically, the movement of the adjusting component 4 drives the movement of the second clamp 2, and the spacing between the first clamp 1 and the second clamp 2 can be adjusted to adapt the spacing to the diameter of the welding ball to be transported. Then, the adjustment component 4 is locked and fixed under the movement of the locking component 10, and the second clamp 2 can be locked and fixed to avoid slipping between the first clamp 1 and the second clamp 2, thereby facilitating the stable transportation of the welding ball and improving the transportation efficiency of the welding ball.

[0043] Then, the mounting plate 7 at the bottom of the mounting frame 6 is inserted into the backing plate 5, and the mounting plate 7 is locked and fixed under the coordinated movement of the mounting assembly 11, so that the mounting frame 6 can be fixed, so that the mounting frame 6 is evenly distributed outside the first fixture 1 and the second fixture 2;

[0044] Then, the connecting plate 9 at the end of the steel wire rope 8 is placed in the mounting frame 6, and the connecting plate 9 is positioned by the positioning assembly 16. Then, under the movement of the connecting assembly 12, the connecting plate 9 can be fixed in the mounting frame 6, thereby completing the installation connection of the two ends of the steel wire rope 8;

[0045] Finally, hang the middle parts of the two steel wire ropes 8 on the hooks, place the welding ball in the first clamp 1 and the second clamp 2, and the clamping positions of the first clamp 1 and the second clamp 2 are close to the center of the welding ball, and the first clamp 1 and the second clamp 2 are lower than the center of the welding ball, so that the stability of the welding ball can be ensured during the lifting process, and low-altitude lifting can be performed.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A ground-assembled grid welded ball low-altitude lifting device, comprising: The first clamp (1) and the second clamp (2) are characterized in that: support plates (3) for sliding the second clamp (2) are fixed at both ends of the first clamp (1), and the two support plates (3) are connected to the second clamp (2) through an adjustment component (4); pads (5) are fixed on both sides of the first clamp (1) and both sides of the second clamp (2); the top ends of the four pads (5) are provided with mounting frames (6); the bottom ends of the four mounting frames (6) are fixed with mounting plates (7) interlaced with the pads (5); the four mounting frames (6) are provided with connecting plates (9); and the two connecting plates (9) on the same side are fixedly connected by a steel wire rope (8); Two locking assemblies (10), which are respectively arranged on one side of the two support plates (3), and the two locking assemblies (10) are respectively connected to the two adjustment assemblies (4) for locking and fixing the adjustment assemblies (4); Four mounting components (11), which are respectively arranged in four mounting plates (7) and located below the pad (5), and are used to fix the mounting plates (7); Four connecting components (12) are respectively arranged inside the four mounting frames (6); the four connecting components (12) are respectively connected to the four connecting plates (9) for fixing the connecting plates (9).

2. The low-altitude lifting device for ground-assembled grid welded balls according to claim 1 is characterized by: The adjustment assembly (4) comprises a first slider (41) fixedly arranged at the end of the second clamp (2); a first slide groove (42) for the first slider (41) to slide is provided on one side of the support plate (3); a screw rod (43) threadedly connected to the first slider (41) is rotatably connected in the first slide groove (42); one end of the screw rod (43) passes through the outside of the support plate (3) and is fixed with a turning handle (44).

3. The low-altitude lifting device for ground-assembled grid welded balls according to claim 2 is characterized by: The locking assembly (10) comprises a locking plate (101) sleeved on the outer wall of the screw rod (43); one side of the locking plate (101) is provided with a plurality of locking grooves (102) in an annular shape; one side of the support plate (3) is slidably provided with an L-shaped plate (103); one side of the L-shaped plate (103) is fixed with a locking block (104) adapted to the locking groove (102); the L-shaped plate (103) is connected to the support plate (3) via a sliding assembly (13); one side of the support plate (3) is provided with a driving assembly (14) for driving the L-shaped plate (103) to move.

4. The low-altitude lifting device for ground-assembled grid welded balls according to claim 1 is characterized by: The mounting assembly (11) comprises grooves (111) provided on both sides of the mounting plate (7), the two grooves (111) are both inserted with mounting blocks (112), the two mounting blocks (112) are respectively fixedly connected to the grooves (111) via springs (113), the two sides of the bottom end of the pad (5) are both fixed with side plates (114), the opposite sides of the two side plates (114) are both provided with mounting grooves (115) adapted to the mounting blocks (112), and the bottom end of the mounting plate (7) is provided with a pulling assembly (15) for driving the mounting blocks (112) to move.

5. The low-altitude lifting device for ground-assembled grid welded balls according to claim 1 is characterized by: The connecting assembly (12) comprises shaft seats (121) fixedly arranged on both sides of the inner wall of the mounting frame (6), the two shaft seats (121) are rotatably connected with a rotating shaft (122), the outer walls of the two rotating shafts (122) are sleeved with a U-shaped clamping plate (123) that contacts the connecting plate (9), one end of the two rotating shafts (122) is fixed with a pulley (124), and the two pulleys (124) are connected to each other by a belt (125), one end of one of the rotating shafts (122) passes through the outside of the mounting frame (6) and is fixed with a first knob (126), and the outer wall of the rotating shaft (122) is threadedly connected with a first fastening nut (127).

6. The low-altitude lifting device for ground-assembled grid welded balls according to claim 3 is characterized by: The sliding assembly (13) comprises a second sliding block (131) fixedly arranged on one side of the L-shaped plate (103), and a second sliding groove (132) for the second sliding block (131) to slide is provided on one side of the support plate (3).

7. The low-altitude lifting device for ground-assembled grid welded balls according to claim 6 is characterized by: The driving assembly (14) comprises a rotating frame (141) fixedly arranged on one side of the supporting plate (3), a rotating rod (142) being rotatably connected inside the rotating frame (141), a rotating plate (143) being sleeved on the outer wall of the rotating rod (142), a third sliding groove (144) being provided on one side of the rotating plate (143), a third sliding block (145) sliding with the third sliding groove (144) being fixed on one side of the L-shaped plate (103), a second knob (146) being fixed on one end of the rotating rod (142), and a second fastening nut (147) being threadedly connected on the outer wall of the rotating rod (142).

8. The low-altitude lifting device for ground-assembled grid welded balls according to claim 4 is characterized by: The pulling assembly (15) comprises a pull rope (151) fixedly arranged on one side of two mounting blocks (112), the two pull ropes (151) both penetrate to the bottom of the mounting plate (7), the two grooves (111) are rotatably connected with pulleys (152) for sliding the pull ropes (151), the ends of the two pull ropes (151) located at the bottom of the mounting plate (7) are fixedly connected via a pull plate (153), and a handle (154) is fixed to the bottom end of the pull plate (153).

9. The low-altitude lifting device for ground-assembled grid welded balls according to claim 5, characterized in that: The connecting plate (9) is connected to the mounting frame (6) via a positioning assembly (16); the positioning assembly (16) comprises a positioning column (161) fixedly arranged at the bottom end of the connecting plate (9); and a positioning groove (162) adapted to the positioning column (161) is provided at the bottom end of the inner wall of the mounting frame (6).

10. The low-altitude lifting device for ground-assembled grid welded balls according to claim 1, characterized in that: The mounting frame (6) is connected to the pad (5) via a supporting assembly (17); the supporting assembly (17) comprises a supporting rod (171) fixedly arranged at the bottom end of the mounting frame (6); a supporting groove (172) adapted to the supporting rod (171) is provided at the top end of the pad (5); and a supporting column (173) abutting against the supporting groove (172) is fixed to the outer wall of the supporting rod (171).

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