Cutting device for mobile phone outer screen glass production

Abstract

The utility model discloses a cutting device for mobile phone outer screen glass production, which comprises a bottom plate, a lifting cutting mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, the lifting cutting mechanism comprises a longitudinal seat, a driving motor, a lifting rod, rotating teeth, a toothed plate and a cutting assembly, the rapid clamping mechanism comprises a clamping pipe, a clamping rod, a clamping groove, a transverse moving rod, a reverse pushing spring and a pushed block, the clamping auxiliary mechanism comprises a limiting ring, a gradient block, a rotating plate, a rotating rod, a matching plate, a matching groove and a compressed spring frame, and the lifting cutting mechanism is matched through a driving motor, a lifting rod, a toothed plate, rotating teeth and other assemblies; according to the cutting device, the vertical lifting motion of the cutting assembly is achieved, the high-precision cutting position adjusting capacity is provided, the rapid clamping mechanism enables the cutting assembly to be rapidly and stably mounted and dismounted through cooperation of a clamping pipe, a clamping rod and related accessories, the replacement or maintenance efficiency of the cutting assembly is improved through the design, and the downtime of equipment is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting technical field, more specifically, it relates to a cutting device for mobile phone outer screen glass production. BACKGROUND

[0002] In the existing mobile phone outer screen glass production technology, some problems may occur in the longitudinal cutting process of the glass outer screen, which not only affects the production efficiency, but also may lead to the decline of cutting quality, and even affects the service life of the equipment.

[0003] In the process of longitudinal cutting of glass, due to the unstable design of the lifting cutting mechanism of the cutting device, the lifting rod may deviate or tilt when moving up and down. This tilting phenomenon may be caused by many factors, for example, uneven weight distribution of the cutting assembly, which leads to the deviation of the center of gravity of the cutting device.

[0004] The installation method of the cutting assembly in the prior art usually adopts traditional bolt fixing or complex mechanical connection structure. Although this method can ensure the firmness of the assembly, tools such as screwdrivers or wrenches are needed for installation and disassembly, which is complex and time-consuming. If the fixed structure position is relatively hidden, the installation process may be limited by space, further increasing the operation difficulty. In the long-term use process, the fixed bolt may be difficult to disassemble due to vibration loosening or the influence of external environment (such as corrosion, dirt accumulation). UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the problems existing in the prior art, the utility model provides a cutting device for mobile phone outer screen glass production to solve the technical problems mentioned in the background technology, such as the possible tilting in the process of longitudinal cutting of glass, and the difficulty in realizing the quick installation and disassembly of the cutting assembly, and the inconvenience in maintaining or repairing the cutting assembly.

[0007] (II) Technical scheme

[0008] To achieve the above object, the utility model provides following technical scheme: A cutting device for mobile phone outer screen glass production, including bottom plate, lift cutting mechanism, quick clamping mechanism and clamping auxiliary mechanism, the lift cutting mechanism includes vertical seat, drive motor, lift rod, rotation tooth, toothed plate and cutting assembly, vertical seat vertical installation in the top end of bottom plate, drive motor installs lift rod, drive motor extends lift rod and rotation tooth cooperation and connection, toothed plate fixed mounting is in vertical seat, rotation tooth is engaged with toothed plate, is installed in one end of lift rod through quick clamping mechanism and cutting assembly, the quick clamping mechanism includes clamping pipe, clamping rod, clamping groove, horizontal shift rod, counter spring and push block, clamping rod can directional extension into the inside of clamping pipe, clamping groove sets up on the lateral wall of clamping rod, horizontal shift rod transversely slides and is set up on the lateral wall of clamping pipe, push block installs in one end of horizontal shift rod, counter spring installs between the outer wall of push block and clamping pipe, counter spring can push push block and make horizontal shift rod away from clamping groove.

[0009] The utility model further sets up, clamping auxiliary mechanism includes limit ring, gradient block, rotation board, rotation rod, cooperation board, cooperation groove and spring holder, limit ring limit rotation installs on the outer wall of clamping pipe, gradient block installs on the inner wall of limit ring, rotation gradient block can push push block, make rotation rod extend into clamping groove, rotation board and rotation rod install at the bottom of limit ring, cooperation board fixed mounting is on the outer wall of clamping pipe, cooperation groove sets up on cooperation board, rotation rod can rotate and extend into cooperation groove, spring holder is installed on the upside and downside of cooperation groove symmetry, spring holder can press to the side of rotation rod, fixes rotation rod in cooperation groove.

[0010] The utility model further sets up, the top end of bottom plate is equipped with longitudinal shift component, and the top end of longitudinal shift component is equipped with horizontal shift component, and horizontal shift component realizes the transverse movement of placing board, cooperates with longitudinal shift component, increases the flexibility of cutting.

[0011] The utility model further sets up, the top end of horizontal shift component is equipped with placing board, and the both sides of placing board are equipped with hydraulic pressure jar fixed mounting symmetry, and placing board provides the support platform of cutting work piece, ensures that glass keeps stable in the cutting process.

[0012] The utility model further sets up, one end of hydraulic pressure jar is equipped with clamping block, and two groups of clamping blocks symmetrically move towards each other in placing board, and clamping block plays the clamping effect to glass, prevents shaking, further improves cutting quality.

[0013] The utility model further sets up, the side end face of vertical seat is equipped with slide rail, and the side of lift rod is equipped with slide sleeve, and slide sleeve is cooperated and slides and is arranged on the slide rail, and slide sleeve cooperates and slides and guides with the slide rail, avoids the deviation in lift movement, improves the operation stability of cutting assembly.

[0014] The utility model further sets up, the side wall bottom of carding pipe installation is equipped with the connecting plate, and the connecting plate fixed mounting is in the side wall of lift rod, and the connecting plate fixes carding pipe on the lift rod side wall, guarantees the stability and reliability of carding assembly, avoids the loosening in the cutting process.

[0015] The utility model further sets up, the side end of cutting assembly cooperates with the quick -witted connection of carding rod, and the one end of carding rod is through the lift rod and is cooperated with the quick -witted carding of carding pipe, realizes quick loading and unloading through the cooperation of carding rod and carding pipe, has improved the replacement speed of cutting head, has reduced the downtime of device, improves work efficiency.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a cutting device for mobile phone outer screen glass production has the following beneficial effects:

[0018] The utility model sets up the lifting cutting mechanism, and the lifting cutting mechanism realizes the up and down movement of cutting assembly through the cooperation of drive motor, lift rod, toothed plate and rotation tooth etc. component, provides high -precision cutting position adjustment ability, and through the guide design of slide rail and sliding sleeve simultaneously, ensure the stability of lifting movement, avoid the deviation, improve the reliability and accuracy of cutting process.

[0019] The utility model sets up the quick -witted carding mechanism, and the quick -witted carding mechanism passes through the cooperation of carding pipe, carding rod and relevant accessories, makes cutting assembly can quickly, stably install and dismount, and this design not only has improved the efficiency of cutting assembly replacement or maintenance, has shortened the equipment downtime, has guaranteed the reliability of connection simultaneously, reduced the cutting error due to loosening or improper installation.

[0020] The utility model sets up the carding auxiliary mechanism, and the carding auxiliary mechanism passes through the coordination of limiting ring, rotation rod and cooperation board, further strengthens the stability and security of quick -witted carding mechanism, provides additional support and limiting function in the process of loading and unloading, prevents the loosening of connecting part in the work, and spring holder design ensures that cutting assembly is fixed reliably, improves the overall stability of cutting operation. ACCURACY OF THE DRAWINGS

[0021] Figure 1 It is the overall structure schematic drawing of the device in the utility model in unused state;

[0022] Figure 2 It is the structure schematic drawing of the lifting cutting mechanism in the utility model;

[0023] Figure 3 It is the structure schematic drawing of cutting assembly installation mode in the utility model;

[0024] Figure 4 It is the structural schematic view of the quick clamping mechanism and the clamping auxiliary mechanism in the utility model;

[0025] Figure 5 It is the structural schematic view of the inside of the quick clamping mechanism and the clamping auxiliary mechanism in the utility model.

[0026] In the drawing: 1, bottom plate;2, vertical seat;3, driving motor;4, lifting rod;5, rotating tooth;6, toothed plate;7, cutting assembly;8, clamping pipe;9, clamping rod;10, clamping groove;11, transverse moving rod;12, counter spring;13, pushed block;14, limit ring;15, slope block;16, rotating plate;17, rotating rod;18, matching plate;19, matching groove;20, compression spring frame;21, longitudinal moving assembly;22, transverse moving assembly;23, placing plate;24, hydraulic cylinder;25, clamping block;26, slide rail;27, sliding sleeve;28, connecting plate. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the utility model, unless otherwise stated, the orientation such as "up, down" used is generally for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction;Similarly, for the convenience of understanding and description, "left, right" is generally for the left and right shown in the drawing;"Inside, outside" refers to the inside and outside relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0030] Please refer to Figures 1-5The utility model provides a cutting device for cell -phone outer screen glass production, including bottom plate 1, lift cutting mechanism, quick clamping mechanism and clamping auxiliary mechanism, lift cutting mechanism includes vertical seat 2, driving motor 3, lift rod 4, rotation tooth 5, toothed plate 6 and cutting assembly 7, vertical seat 2 is vertically installed at the top end of bottom plate 1, driving motor 3 is installed lift rod 4, driving motor 3 extends through lift rod 4 and is connected with rotation tooth 5, toothed plate 6 is fixedly installed on vertical seat 2, rotation tooth 5 is engagedly connected with toothed plate 6, cutting assembly 7 is installed at one end of lift rod 4 through quick clamping mechanism, quick clamping mechanism includes clamping pipe 8, clamping rod 9, clamping groove 10, transverse rod 11, counter spring 12 and push block 13, clamping rod 9 can be oriented and inserted into the inside of clamping pipe 8, clamping groove 10 is arranged on the side wall of clamping rod 9, transverse rod 11 is transversely slid and is arranged on the side wall of clamping pipe 8, push block 13 is installed at one end of transverse rod 11, counter spring 12 is installed between push block 13 and the outer wall of clamping pipe 8, counter spring 12 can push push block 13 to make transverse rod 11 away from clamping groove 10.

[0031] In the embodiment, vertical seat 2 is fixedly installed on the top of bottom plate 1 as the base support of the whole lift cutting mechanism, driving motor 3 is connected with rotation tooth 5 through lift rod 4, rotation tooth 5 is engagedly connected with toothed plate 6 on vertical seat 2, when driving motor 3 operates, rotation tooth 5 is driven to move up and down along toothed plate 6, lift rod 4 is pushed to move up and down, the lifting of cutting assembly 7 is realized, cutting assembly 7 is installed at one end of lift rod 4 through quick clamping mechanism, ensuring that cutting assembly 7 can move synchronously with lift rod 4 to complete cutting operation, realizing the quick installation and dismounting of cutting assembly 7, facilitating the maintenance or overhaul of cutting assembly 7, one end of clamping rod 9 is connected with cutting assembly 7, the other end can be oriented and inserted into the inside of clamping pipe 8, clamping groove 10 is arranged on the side wall of clamping rod 9 for locking the position of clamping rod 9, transverse rod 11 is transversely arranged on the side wall of clamping pipe 8, one end is connected with push block 13, the other end is acted on by the elastic force of counter spring 12, always keeping the state of pushing towards clamping groove 10, when clamping rod 9 is inserted into clamping pipe 8, clamping groove 10 is aligned with transverse rod 11, under the action of counter spring 12, transverse rod 11 is away from clamping groove 10, the user pushes push block 13 by clamping auxiliary mechanism, transverse rod 11 is pushed into clamping groove 10 against the elastic force of counter spring 12, at this time, clamping rod 9 is fixed in the inside of clamping pipe 8.

[0032] The clamping auxiliary mechanism comprises a limiting ring 14, a slope block 15, a rotating plate 16, a rotating rod 17, a matching plate 18, a matching groove 19 and a compression spring frame 20. The limiting ring 14 is rotatably installed on the outer wall of the clamping pipe 8. The slope block 15 is installed on the inner wall of the limiting ring 14. The rotating slope block 15 can push the pushed block 13, so that the rotating rod 17 extends into the clamping groove 10. The rotating plate 16 and the rotating rod 17 are installed at the bottom of the limiting ring 14. The matching plate 18 is fixedly installed on the outer wall of the clamping pipe 8. The matching groove 19 is arranged on the matching plate 18. The rotating rod 17 can be rotatably extended into the matching groove 19. The compression spring frame 20 is symmetrically installed on the upper and lower sides of the matching groove 19. The compression spring frame 20 can be pressed to the side surface of the rotating rod 17, so as to fix the rotating rod 17 in the matching groove 19.

[0033] In the embodiment, the limiting ring 14 is installed on the outer wall of the clamping pipe 8 and can rotate around the clamping pipe 8, thereby playing a stabilizing role. The slope block 15 is installed on the inner wall of the limiting ring 14. When the limiting ring 14 is rotated, the slope block 15 pushes the pushed block 13, so that the transverse moving rod 11 is more accurately extended into the clamping groove 10, thereby ensuring the firm connection of the clamping rod 9. The rotating plate 16 and the rotating rod 17 are installed at the bottom of the limiting ring 14. The rotating rod 17 is connected with the matching groove 19 on the matching plate 18. The compression spring frame 20 is installed on the upper and lower sides of the matching groove 19, so as to apply a certain compression to the rotating rod 17, thereby avoiding the loosening of the rotating rod 17. When the rotating rod 17 is inserted into the matching groove 19, the relative position of the limiting ring 14 and the clamping pipe 8 is fixed, thereby ensuring the stability of the clamping mechanism.

[0034] Please refer to Figures 1-5 , as a supplement to the lifting cutting mechanism, the quick clamping mechanism and the clamping auxiliary mechanism, the top end of the bottom plate 1 is provided with a longitudinal moving assembly 21, and the top end of the longitudinal moving assembly 21 is provided with a transverse moving assembly 22. The top end of the transverse moving assembly 22 is provided with a placing plate 23, and the two sides of the placing plate 23 are symmetrically and fixedly provided with hydraulic cylinders 24. One end of the hydraulic cylinder 24 is provided with a clamping block 25, and the two groups of clamping blocks 25 move symmetrically and oppositely on the placing plate 23. The side end surface of the longitudinal seat 2 is provided with a sliding rail 26, and the side surface of the lifting rod 4 is provided with a sliding sleeve 27. The sliding sleeve 27 is arranged in cooperation with sliding guide on the sliding rail 26. The side wall bottom end of the clamping pipe 8 is provided with a connecting plate 28, and the connecting plate 28 is fixedly installed on the side wall of the lifting rod 4. The side end of the cutting assembly 7 is quickly connected with the clamping rod 9, and one end of the clamping rod 9 extends through the lifting rod 4 and is quickly clamped with the clamping pipe 8.

[0035] More specifically, the user places the mobile phone outer screen glass to be cut on the placement plate 23 at the top end of the device. The placement plate 23 is precisely positioned by the horizontal moving assembly 22 and the vertical moving assembly 21. The clamping blocks 25 of the hydraulic cylinder 24 move symmetrically towards each other to firmly fix the glass on the placement plate 23, ensuring stability during the cutting process. The cutting assembly 7 is installed at the bottom end of the lifting rod 4 through the quick clamping mechanism, ensuring linkage with the lifting and cutting mechanism. The driving motor 3 is started to drive the lifting rod 4 to move up and down, and the cutting assembly 7 completes the cutting operation on the glass in the lifting motion. The vertical moving assembly 21 and the horizontal moving assembly 22 on the base plate 1 work together to move the glass or the cutting assembly 7 in the horizontal and vertical directions, completing the cutting of complex paths. After cutting is completed, the user pushes the push block 13 of the quick clamping mechanism to detach the cutting assembly 7 from the lifting rod 4, facilitating subsequent cleaning or replacement. The hydraulic cylinder 24 controls the clamping blocks 25 to loosen, and the user removes the cut glass from the placement plate 23.

[0036] In summary, when the lifting and cutting mechanism needs to be operated, the vertical seat 2 is vertically fixed on the top of the base plate 1 as the basic support of the entire lifting and cutting mechanism. The driving motor 3 is connected with the rotating tooth 5 through the lifting rod 4, and the rotating tooth 5 is engaged with the tooth plate 6 on the vertical seat 2. When the driving motor 3 operates, it drives the rotating tooth 5 to move up and down along the tooth plate 6, pushing the lifting rod 4 to move up and down, realizing the lifting of the cutting assembly 7. The cutting assembly 7 is installed at one end of the lifting rod 4 through the quick clamping mechanism, ensuring that the cutting assembly 7 can move synchronously with the lifting rod 4 to complete the cutting operation.

[0037] When the quick clamping mechanism needs to be operated, the cutting assembly 7 can be quickly installed and detached, facilitating maintenance or repair of the cutting assembly 7. One end of the clamping rod 9 is connected with the cutting assembly 7, and the other end can be directed to extend into the inside of the clamping pipe 8. The clamping groove 10 is arranged on the side wall of the clamping rod 9 to lock the position of the clamping rod 9. The horizontal moving rod 11 transversely penetrates the side wall of the clamping pipe 8, one end is connected with the push block 13, and the other end is subjected to the elastic force of the counter spring 12, always maintaining the state of pushing towards the clamping groove 10. When the clamping rod 9 is inserted into the clamping pipe 8, the clamping groove 10 is aligned with the horizontal moving rod 11, and under the action of the counter spring 12, the horizontal moving rod 11 moves away from the inside of the clamping groove 10. The user pushes the push block 13 by using the clamping auxiliary mechanism to make the horizontal moving rod 11 overcome the elastic force of the counter spring 12 and push into the clamping groove 10. At this time, the clamping rod 9 is fixed in the inside of the clamping pipe 8.

[0038] When the operation of the clamping auxiliary mechanism is needed, the limiting ring 14 is installed on the outer wall of the clamping pipe 8 and can rotate around the clamping pipe 8 to play a stabilizing role, the slope block 15 is installed on the inner wall of the limiting ring 14, when the limiting ring 14 is rotated, the slope block 15 will push the push block 13, so that the transverse rod 11 is more accurately inserted into the clamping groove 10, ensuring the firm connection of the clamping rod 9, the rotating plate 16 and the rotating rod 17 are installed at the bottom of the limiting ring 14, connected with the matching groove 19 on the matching plate 18 through the rotating rod 17, the compression spring frame 20 is installed on the upper and lower sides of the matching groove 19, which applies a certain compression to the rotating rod 17 to avoid loosening of the rotating rod 17, when the rotating rod 17 is inserted into the matching groove 19, the relative position of the limiting ring 14 and the clamping pipe 8 is fixed, thereby ensuring the stability of the clamping mechanism.

[0039] The user places the mobile phone outer screen glass to be cut on the placement plate 23 at the top end of the device. The placement plate 23 is precisely positioned by the transverse moving assembly 22 and the longitudinal moving assembly 21, the clamping blocks 25 of the hydraulic cylinder 24 move symmetrically towards each other to firmly fix the glass on the placement plate 23, ensuring the stability during the cutting process, the cutting assembly 7 is installed at the bottom end of the lifting rod 4 through the quick clamping mechanism, ensuring linkage with the lifting cutting mechanism, the driving motor 3 is started to drive the lifting rod 4 to move up and down, and the cutting assembly 7 completes the cutting operation on the glass in the lifting movement, the longitudinal moving assembly 21 and the transverse moving assembly 22 on the base plate 1 work cooperatively to move the glass or the cutting assembly 7 in the horizontal and vertical directions, completing the cutting along a complex path, after the cutting is completed, the user pushes the push block 13 of the quick clamping mechanism to detach the cutting assembly 7 from the lifting rod 4, facilitating subsequent cleaning or replacement, the hydraulic cylinder 24 controls the clamping blocks 25 to loosen, and the user takes down the cut glass from the placement plate 23.

[0040] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection methods, which will not be described one by one, and the welding is preferred for the fixed connection in the above-mentioned solutions. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting device for mobile phone outer screen glass production, comprising a base plate (1), a lifting cutting mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, characterized in that: The lifting cutting mechanism comprises a vertical seat (2), a driving motor (3), a lifting rod (4), a rotating tooth (5), a toothed plate (6) and a cutting assembly (7), the vertical seat (2) is vertically installed on the top end of the bottom plate (1), the driving motor (3) is installed on the lifting rod (4), the driving motor (3) extends through the lifting rod (4) and is connected with the rotating tooth (5), the toothed plate (6) is fixedly installed on the vertical seat (2), the rotating tooth (5) is connected with the toothed plate (6), the cutting assembly (7) is installed on one end of the lifting rod (4) through a quick clamping mechanism, the quick clamping mechanism comprises a clamping pipe (8), a clamping rod (9), a clamping groove (10), a transverse rod (11), a reverse spring (12) and a pushed block (13), the clamping rod (9) can be oriented to extend into the inside of the clamping pipe (8), the clamping groove (10) is arranged on the side wall of the clamping rod (9), the transverse rod (11) is transversely and slidingly arranged on the side wall of the clamping pipe (8), the pushed block (13) is installed on one end of the transverse rod (11), the reverse spring (12) is installed between the pushed block (13) and the outer wall of the clamping pipe (8), and the reverse spring (12) can push the pushed block (13) to make the transverse rod (11) away from the clamping groove (10).

2. The cutting device for mobile phone outer screen glass production according to claim 1, characterized in that: The clamping auxiliary mechanism comprises a limiting ring (14), an inclined block (15), a rotating plate (16), a rotating rod (17), a matching plate (18), a matching groove (19) and a compression spring frame (20), the limiting ring (14) is limitingly and rotatably installed on the outer wall of the clamping pipe (8), the inclined block (15) is installed on the inner wall of the limiting ring (14), the rotating inclined block (15) can push the pushed block (13) to make the rotating rod (17) extend into the clamping groove (10), the rotating plate (16) and the rotating rod (17) are installed on the bottom of the limiting ring (14), the matching plate (18) is fixedly installed on the outer wall of the clamping pipe (8), the matching groove (19) is arranged on the matching plate (18), the rotating rod (17) can be rotatably extended into the matching groove (19), and the compression spring frame (20) is symmetrically installed on the upper and lower sides of the matching groove (19) and can be pressed to the side surface of the rotating rod (17).

3. The cutting device for mobile phone outer screen glass production according to claim 1, characterized in that: The top end of the bottom plate (1) is provided with a longitudinal moving assembly (21), and the top end of the longitudinal moving assembly (21) is provided with a transverse moving assembly (22).

4. The cutting device for mobile phone outer screen glass production according to claim 3, characterized in that: The top end of the transverse moving assembly (22) is provided with a placing plate (23), and the two sides of the placing plate (23) are symmetrically and fixedly provided with hydraulic cylinders (24).

5. The cutting device for mobile phone outer screen glass production according to claim 4, characterized in that: One end of the hydraulic cylinder (24) is provided with a clamping block (25), and the two groups of clamping blocks (25) symmetrically and oppositely move on the placing plate (23).

6. The cutting device for mobile phone outer screen glass production according to claim 1, characterized in that: The side end surface of the vertical seat (2) is provided with a sliding rail (26), the side surface of the lifting rod (4) is provided with a sliding sleeve (27), and the sliding sleeve (27) is arranged on the sliding rail (26) in a sliding guide matching mode.

7. The cutting device for mobile phone outer screen glass production according to claim 1, characterized in that: The side wall bottom end of the clamping pipe (8) is provided with a connecting plate (28), and the connecting plate (28) is fixedly installed on the side wall of the lifting rod (4).

8. The cutting device for mobile phone outer screen glass production according to claim 1, characterized in that: The side end of the cutting assembly (7) is quickly connected with the clamping rod (9), and one end of the clamping rod (9) extends through the lifting rod (4) and is quickly clamped with the clamping pipe (8).

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