Tool and method for pressing a shortened guard heavy telescopic rod

Abstract

This invention discloses a tool and method for holding a heavy-duty telescopic rod for shortening a protective cover, solving the problem in the prior art where the telescopic rod still retains supporting elasticity during disassembly. It effectively maintains the length of the telescopic rod, improving the efficiency of telescopic maintenance. The specific solution is as follows: A tool for holding a heavy-duty telescopic rod for shortening a protective cover includes a main base plate and a clamping component. The main base plate and clamping component clamp the upper connecting column of the telescopic rod. The upper connecting column is connected to an upper mounting block connected to the protective cover. The main base plate movably supports a torsion gear assembly. The torsion gear assembly can rotate relative to the main base plate under external force. The torsion gear assembly meshes with a screw-hole gear assembly through a transition gear assembly. The screw-hole gear assembly includes a screw-hole gear and a connecting rod. The screw-hole gear is threaded onto the connecting rod. One end of the connecting rod is connected to a fixing component. The fixing component is connected to the lower connecting column and lower mounting block of the telescopic rod.

Description

Technical Field

[0001] This invention relates to the field of cigarette processing equipment technology, and in particular to a tool and method for pressing and holding a heavy-duty telescopic rod for shortening a protective cover. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Hydraulic support rods are widely used in protective covers and doors of machinery and equipment that flip upwards. They provide assistance to reduce weight when lifting the cover or door, provide support to prevent falls when fully open, and provide damping to prevent rapid slamming when closing. Hydraulic support rods are also widely used in winding and packaging equipment, especially in ultra-high-speed winding and packaging equipment. The integrated design of large protective covers makes the equipment aesthetically pleasing, provides comprehensive protection, and facilitates operation. Meanwhile, heavy-duty hydraulic support rods are increasingly being used in ultra-high-speed winding and packaging equipment.

[0004] Taking the ZJ116 type coiling and splicing unit as an example, the front protective cover of the splicing machine is relatively large and heavy, and a heavy-duty hydraulic support rod is installed on each of the left and right sides, as shown in the image. Figure 1 As shown, the installed heavy-duty hydraulic support rod has a rated support force of 1500 Newtons and is used for auxiliary support during the raising, hovering, holding, and lowering of the protective cover. This protective cover is used for the safety protection of the front moving parts of the entire spigot-connecting machine. During high-speed production operation, almost all troubleshooting processes related to the spigot-connecting machine require opening the protective cover, resulting in very frequent raising and lowering, causing frequent damage to parts such as the hydraulic support rod, transmission chain, and belt. The failure of the protective cover's raising and lowering not only affects the equipment's production efficiency but also poses a serious safety hazard, requiring timely replacement and repair. Furthermore, all maintenance processes require the removal of both heavy-duty hydraulic support rods, using ropes or ground supports to fix the protective cover in its fully open position until the relevant parts are replaced or restored to their original positions.

[0005] The inventors discovered the following problems in the current maintenance process due to the malfunction of the protective cover's lifting mechanism:

[0006] Because the hydraulic support rod is not fully extended when the protective cover is opened to its maximum position, it still has a large supporting elastic force during disassembly, which can easily damage the upper and lower mounting blocks at both ends of the hydraulic support rod and the fixing screw holes on the protective cover.

[0007] When installing hydraulic support rods, it is impossible to compress them to the required length manually, and the use of commonly used tools is limited by space constraints, making the maintenance work time-consuming, labor-intensive, and inefficient.

[0008] While methods such as using levers to press down or using ropes to wrap can complete the installation, the entire process poses safety hazards to personal injury and equipment damage.

[0009] The rated production speed of ultra-high-speed cigarette machines exceeds 10,000 cigarettes per minute, and the low efficiency of fault repair means a large loss of production. Summary of the Invention

[0010] To address the shortcomings of existing technologies, the purpose of this invention is to provide a tool for pressing and shortening heavy-duty telescopic rods of protective covers, which significantly reduces downtime, improves equipment production efficiency, and ensures personal and equipment safety.

[0011] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0012] A tool for holding a heavy-duty telescopic rod for a shortening protective cover includes a main base plate and a clamping member. The main base plate and clamping member clamp the upper connecting column of the telescopic rod. The upper connecting column is connected to an upper mounting block connected to the protective cover. The main base plate movably supports a torsion gear assembly. The torsion gear assembly can rotate relative to the main base plate under the action of external force. The torsion gear assembly meshes with a screw hole gear assembly through a transition gear assembly. The screw hole gear assembly includes a screw hole gear and a connecting rod. The screw hole gear is sleeved on the connecting rod through a threaded structure. One end of the connecting rod is connected to a fixing member. The fixing member is connected to the lower connecting column and the lower mounting block of the telescopic rod. The torsion gear assembly transmits torque. The screw hole gear assembly converts rotational motion into axial motion, which drives the telescopic rod to extend or shorten through the main base plate.

[0013] The tool provided by this invention has a reasonable overall structure. The torsion gear assembly and the screw hole gear assembly can effectively convert rotational motion into axial motion. By driving the hydraulic telescopic rod through the main base plate, the telescopic rod can be retracted to resist the elastic force of the telescopic rod and maintain the required position of the lower mounting block; or the length of the telescopic rod can be extended to adjust the length of the telescopic rod.

[0014] As described above, a tool for holding a heavy telescopic rod for a shortening protective cover is provided. In order to effectively clamp the upper connecting column of the support member, a first recess is provided on one side of the main base plate, and an arc-shaped second recess is provided on the inner side of the first recess. The clamping member can be embedded in the first recess of the main base plate, and a third recess is provided on one side of the clamping member. The main base plate and the clamping member clamp the upper connecting column through the second and third recesses.

[0015] As described above, a tool for holding a heavy telescopic rod for a shortened protective cover is provided with a first through hole on the main base plate and a second through hole on the clamping member. After the clamping member and the main base plate clamp the upper connecting post, a locking member is provided through the first and second through holes.

[0016] The first recess of the main substrate is fitted and connected to the clamping member, which facilitates the positioning of the clamping member. Moreover, when subjected to external force in the axial direction of the telescopic rod, the relative positions of the first and second recesses in the axial direction remain unchanged.

[0017] As described above, a tool for pressing and holding a heavy telescopic rod for a shortening protective cover has a main base plate with multiple stepped holes. The corresponding torsion gear assembly, transition gear assembly, and screw hole gear assembly are installed through each stepped hole. The stepped surface of the stepped hole is used to constrain and limit the corresponding gear in the direction of force on the axis.

[0018] As described above, a tool for pressing and holding a heavy telescopic rod of a shortened protective cover, wherein the torsion gear assembly includes a torsion gear, the torsion gear is mounted on the main base plate via a torsion gear shaft, the torsion gear shaft is circumferentially provided with a first spacer, and the torsion gear is mounted at the first spacer;

[0019] A torsion nut is fixed to the upper surface of the torsion gear. The torsion nut and the torsion gear are an integral structural component. External force is applied through the torsion nut to drive the rotation of the torsion gear.

[0020] As described above, a tool for pressing and holding a heavy telescopic rod for a shortened protective cover includes two sets of transition gear assemblies, which are located on both sides of the torsion gear assembly and are symmetrically arranged about a center line of the main base plate.

[0021] The transition gear assembly includes a transition gear, which is mounted on the main base plate via a transition gear shaft. A second spacer is circumferentially disposed on the transition gear shaft, and the transition gear is mounted at the second spacer.

[0022] As described above, a tool for pressing and holding a heavy telescopic rod for a shortened protective cover includes two sets of screw hole gear assemblies, each set located on one side of the transition gear shaft, and the two sets of screw hole gear assemblies are symmetrically arranged about a center line of the main base plate.

[0023] One end of the screw-hole gear is provided with a protrusion, which is inserted into the main base plate. A lower liner is provided at one end of the protrusion, and an upper liner is provided at the connection between the protrusion and the screw-hole gear. The upper and lower liners play a role in reducing wear and supporting the rotation and load-bearing of the screw-hole gear.

[0024] As described above, a tool for holding a heavy-duty telescopic rod for a shortened protective cover has two connecting rods corresponding to two other connecting rods. The fixing element is a fixing block, which includes two blocks located on both sides of the telescopic rod. The connecting rod and the fixing block are detachably connected.

[0025] As described above, a tool for holding a heavy-duty telescopic rod for a shortened protective cover has a pin that passes through the fixing blocks, the lower connecting block, and the lower connecting post on both sides. A tightening bolt is connected between the fixing blocks on both sides, and the tightening bolt is located above the pin. The tightening bolt helps to keep the two fixing blocks close to the middle, maintain the installation position under external force, and prevent the fixing blocks from separating from the pin.

[0026] Secondly, the present invention also provides a method for operating a tool for pressing and holding a heavy telescopic rod of a shortened protective cover, comprising the following:

[0027] The torsion gear assembly is rotated by external force;

[0028] The torsion gear assembly transmits torque to the helical gear assembly via the transition gear assembly;

[0029] In the threaded gear assembly, the threaded gear is connected to the connecting rod by a thread, thereby converting rotational motion into axial motion.

[0030] The screw-hole gear applies pressure to the main base plate, causing the telescopic rod to retract and the total length of the telescopic rod to decrease. This is to resist the extension force of the telescopic rod when it is disassembled, or to compress and maintain the telescopic rod to the required length when it is replaced.

[0031] The reverse-rotating torsion gear set transmits torque to the screw hole gear assembly through the transition gear assembly. Under the action of the threaded structure, the screw hole gear moves upward relative to the connecting rod, and the main base plate moves upward under the tension of the telescopic rod, that is, the telescopic rod extends, so as to adjust the length of the telescopic rod as needed.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1) By combining the structural features of the heavy-duty hydraulic support rod and the installation part of the coiling machine unit, the entire tool can be installed and fixed to both ends of the telescopic rod. The overall structure is reasonably set. The setting of the torsion gear assembly and the screw hole gear assembly can effectively convert the rotational motion into axial motion. The main base plate drives the hydraulic telescopic rod to retract, resisting the elastic force of the hydraulic support rod, and is not likely to damage the fixing screw holes of the upper and lower mounting blocks at both ends of the telescopic rod; or it can extend the length of the telescopic rod to adjust the length of the telescopic rod.

[0034] 2) The entire tool of this invention is designed so that when the hydraulic support rod is compressed, it can be quickly positioned and aligned with the mounting screw hole during installation, ensuring a safe and quick disassembly and assembly process; when disassembling the hydraulic support rod before repairing or replacing parts such as chains and belts, it can effectively resist its huge stretching elastic force; before replacing a new telescopic rod, the entire tool can be used to compress and maintain the telescopic rod to the required length, and the length of the telescopic rod can be easily adjusted as needed during installation, achieving convenient and quick positioning and fastening.

[0035] 3) The tool provided by this invention can significantly reduce the time for troubleshooting and improve the production efficiency of equipment; it can also ensure the safety of personnel and equipment, reduce the labor intensity of employees, improve the quality of maintenance, and reduce the consumption of spare parts. It can be widely used in the design and application of auxiliary tools for hydraulic or pneumatic support rods, strong support springs and other mechanisms, significantly improving disassembly and assembly efficiency and safety, and has broad promotional value; it fully guarantees the production output of ultra-high speed cigarette machines.

[0036] 4) The main substrate structure of the present invention is reasonably designed. The first recess allows the clamping member to be inserted into the first recess. The second recess and the third recess of the clamping member enable the main substrate and the clamping member to effectively cooperate and clamp the upper connecting column.

[0037] 5) In this invention, the torsion gear assembly, transition gear assembly and screw hole gear assembly are all mounted on the main base plate through stepped holes. The stepped surface of the stepped hole is used to constrain and limit the corresponding gear in the direction of force on the axis.

[0038] 6) In this invention, the transition gear assembly is located on both sides of the torsion gear assembly, and a screw hole gear assembly is provided on one side of each transition gear assembly. The screw hole gear assembly is located on both sides of the telescopic rod. The overall layout is reasonable and the force is balanced, which can effectively compress the telescopic rod without manual compression. The overall structure is reasonably designed, does not occupy a large space, and is convenient to use. Attached Figure Description

[0039] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0040] Figure 1 This is a schematic diagram of a tool for holding a heavy-duty telescopic rod for shortening a protective cover, according to one or more embodiments of the present invention.

[0041] Figure 2 This is an exploded view of the main base plate and the clamping member holding the connecting column in a tool for pressing and holding a shortening protective cover heavy telescopic rod according to one or more embodiments of the present invention.

[0042] Figure 3This is a schematic diagram of the main base plate and the clamping member clamping the upper connecting column in a tool for pressing and holding a shortening protective cover heavy telescopic rod according to one or more embodiments of the present invention.

[0043] Figure 4 This is a schematic diagram of the main base plate and clamping member connected in a tool for holding a shortened protective cover heavy telescopic rod according to one or more embodiments of the present invention.

[0044] Figure 5 This is a schematic diagram of the gear shafts mounted on the main base plate in a tool for pressing and holding a heavy telescopic rod for a shortening protective cover according to one or more embodiments of the present invention.

[0045] Figure 6 This is a schematic diagram of the gears mounted on the main base plate in a tool for holding a heavy telescopic rod for shortening a protective cover, according to one or more embodiments of the present invention.

[0046] Figure 7 This is a schematic diagram of the screw hole gear assembly on the main base plate in a tool for pressing and holding a heavy telescopic rod for a shortening protective cover according to one or more embodiments of the present invention.

[0047] Figure 8 This is a schematic diagram of the gear assembly, transition gear assembly, and screw hole gear assembly arranged on the main base plate in a tool for pressing and holding a heavy telescopic rod for shortening a protective cover according to one or more embodiments of the present invention.

[0048] Figure 9 This is a schematic diagram of the installation of the bottom fixing member of the telescopic rod in a tool for pressing and holding a heavy telescopic rod for shortening a protective cover, according to one or more embodiments of the present invention.

[0049] Figure 10 This is a perspective view of a tool for holding a heavy-duty telescopic rod for shortening a protective cover, according to one or more embodiments of the present invention.

[0050] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0051] Among them: A. Torsional gear assembly, B. Transition gear assembly, C. Screw hole gear assembly, 1. Hydraulic support rod; 1.1 Upper connecting column; 1.1.1 Recessed plane; 1.2 Hydraulic cylinder; 1.3 Hydraulic rod; 1.4 Lower connecting column;

[0052] 2. Main substrate; 2.1. Second recess 10.27.2; 2.2. Boss; 2.3. First through hole; 2.4. Torsional gear mounting hole; 2.5. Left transition gear mounting hole; 2.6. Right transition gear mounting hole; 2.7. Left screw-hole gear mounting hole; 2.8. Right screw-hole gear mounting hole; 2.9. Right side circular hole;

[0053] 3. Clamping element; 3.1. Third recess; 3.2. Stepped platform; 3.3. Second through hole;

[0054] 4.1 First bolt; 4.2 Second bolt; 5. Upper mounting block; 5.1 Mounting hole;

[0055] 6. Torsional gear shaft; 6.1. First spacer; 6.2. First gasket;

[0056] 7. Left transition gear shaft; 7.1. Second spacer; 7.2. Second shim;

[0057] 8. Right transition gear shaft; 8.1. Third spacer; 8.2. Third shim;

[0058] 9. Left threaded gear; 9.1 First threaded hole; 9.2 Upper left shim; 9.3 Lower left shim; 10. Right threaded gear; 10.1 Second threaded hole; 10.2 Upper right shim; 10.3 Lower right shim;

[0059] 11. Torsion gear; 11.1. Torsion nut;

[0060] 12. Left transition gear; 13. Right transition gear; 14. Left tie rod; 14.1. Left drive thread; 14.2. Left fastening thread; 15. Right tie rod; 15.1. Right drive thread; 15.2. Right fastening thread;

[0061] 16. Left fixing block; 16.1. Round hole; 17. Right fixing block; 17.1. Round hole; 18. Tightening bolt; 19. Lower mounting block; 20. Pin. Detailed Implementation

[0062] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] As described in the background section, existing telescopic rods still have supporting elasticity during disassembly and are not easy to remove or install. In order to solve the above technical problems, this invention proposes a tool for pressing and holding a heavy telescopic rod with a shortening protective cover.

[0065] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a tool for holding a heavy telescopic rod for shortening a protective cover includes a main base plate 2 and a clamping member 3. The main base plate 2 and the clamping member 3 clamp the upper connecting column 1.1 of the telescopic rod. The upper connecting column 1.1 is connected to the upper mounting block 5 connected to the protective cover. The main base plate 2 movably supports a torsion gear assembly A. The torsion gear assembly A can rotate relative to the main base plate 2 under the action of external force. The torsion gear assembly A meshes with a screw hole gear assembly C through a transition gear assembly B. The screw hole gear assembly C includes a screw hole gear and a connecting rod. The screw hole gear is sleeved on the connecting rod through a threaded structure. One end of the connecting rod is connected to a fixing member. The fixing member is connected to the lower connecting column 1.4 and the lower mounting block 19 of the telescopic rod. The torsion gear assembly A transmits torque, and the screw hole gear assembly C converts the rotational motion into axial motion, which drives the telescopic rod to extend or shorten through the main base plate 2.

[0066] It should be noted that the telescopic rod can be a hydraulic support rod, a pneumatic telescopic rod, or other powerful support springs and other mechanisms; in this embodiment, the telescopic rod is a hydraulic support rod 1 as an example. The hydraulic support rod 1 includes a hydraulic cylinder 1.2 and a hydraulic rod 1.3. The hydraulic cylinder 1.2 is connected to the upper connecting column 1.1, and the hydraulic rod 1.3 is connected to the lower connecting column 1.4.

[0067] In order to effectively clamp the upper connecting post 1.1 of the support member, a first recess is provided on one side of the main substrate 2, and the clamping member 3 can be embedded into the first recess of the main substrate 2. The shape of the first recess is consistent with the shape of the clamping member 3; in some examples, the clamping member 3 is specifically a clamping block.

[0068] refer to Figure 2 As shown, the main substrate 2 has an arc-shaped second recess 2.1 on the inner side of the first recess, and a third recess 3.1 is provided on one side of the clamping member 3. Both the second recess 2.1 and the third recess 3.1 are semi-hole curved surfaces, and their shapes are adapted to the shape of the upper connecting post 1.1, so as to achieve a close fit with the cylindrical curved surface of the upper connecting post 1.1. The main substrate 2 and the clamping member 3 clamp the upper connecting post 1.1 through the second recess 2.1 and the third recess 3.1.

[0069] In this embodiment, a first through hole 2.3 is provided in the middle of the main substrate 2 in the horizontal direction. The first through hole is located at the junction of the first recess and the second recess 2.1. A second through hole 3.3 is provided in the clamping member 3. After the clamping member 3 clamps the upper connecting post 1.1 with the main substrate 2, a locking member is provided through the first through hole and the second through hole. The locking member is specifically a first bolt 4.1 and a second bolt 4.2. Both the first bolt 4.1 and the second bolt 4.2 are long bolts. After the first bolt 4.1 and the second bolt 4.2 pass through the main substrate 2 and the clamping member 3 in the horizontal direction, they are locked by nuts to apply clamping force, so that the upper end of the tool is clamped and fixed on the upper connecting post 1.1 of the telescopic rod.

[0070] In addition, recessed planes 1.1.1 are provided on both sides of the upper connecting column 1.1 to make room for the first bolt 4.1 and the second bolt 4.2. The shape and size of the first through hole 2.3 and the second through hole 3.3 ensure that the first bolt 4.1 and the second bolt 4.2 fit with the recessed planes 1.1.1 on the upper connecting column 1.1, clamping and positioning the upper connecting column 1.1 on opposite sides, and realizing the positioning of the tool in the circumferential direction of the hydraulic support rod 1.

[0071] Furthermore, the first recess of the main substrate 2 is fitted and connected to the clamping member 3. A boss 2.2 is provided on the upper surface of the main substrate 2 extending towards the first recess, and a stepped platform 3.2 is provided at the corresponding position of the clamping member 3, so that the clamping member 3 can be accurately embedded and fitted into the main substrate 2, enabling quick and accurate positioning; and when subjected to the external force in the axial direction of the hydraulic support rod 1, the relative position of the first recess and the second recess in the axial direction remains unchanged.

[0072] refer to Figure 3 As shown, the upper mounting block 5 is connected to the upper connecting column 1.1 via an ear. The upper mounting block 5 is provided with multiple mounting holes 5.1, which are used to fix the device to the protective cover by screws. Because the tool provided in this embodiment can stably compress the hydraulic support rod 1, the mounting holes 5.1 are precisely aligned with the corresponding screw holes of the protective cover. Moreover, it avoids damage to the screw holes on the upper mounting block, lower mounting block, and protective cover under the large upward force of the hydraulic support rod when installing or removing screws.

[0073] It is easy to understand that the main base plate 2 is plate-shaped, the clamping part 3 is block-shaped, and the setting of the first bolt and the second bolt are all reasonable and can effectively avoid interference with surrounding components such as the upper mounting block 5.

[0074] refer to Figure 4As shown, one function of the main base plate 2 is to combine with the clamping member 3 to fix the tool of this embodiment on the hydraulic support rod 1. Another function is to serve as the mounting and positioning base plate for the five gears. The main base plate is provided with multiple stepped holes, specifically five stepped holes, namely torsion gear mounting hole 2.4, left transition gear mounting hole 2.5, right transition gear mounting hole 2.6, left screw hole gear mounting hole 2.7, and right screw hole gear mounting hole 2.8. The corresponding torsion gear assembly, transition gear assembly, and screw hole gear assembly are installed through each stepped hole. The stepped surface of the stepped hole is used to apply constraint and limit to the corresponding gear in the direction of force on the axis.

[0075] The torsion gear assembly includes a torsion gear, see reference. Figure 5 As shown, the torsion gear is mounted on the main base plate 2 through the torsion gear shaft 6 and the corresponding torsion gear mounting hole 2.4. The torsion gear shaft is provided with a first spacer in the circumferential direction. The torsion gear is mounted at the first spacer 6.1. The torsion gear shaft is provided beyond the top of the first spacer 6.1. The bottom of the first spacer 6.1 is provided with a first gasket 6.2.

[0076] Considering the balance of structural arrangement and applied force, the transition gear assembly B includes two sets, which are located on both sides of the torsion gear assembly A. The two sets of transition gear assemblies are symmetrically arranged about a center line of the main base plate 2.

[0077] The transition gear assembly B includes two transition gears. The left transition gear 12 is mounted on the left transition gear mounting hole 2.5 of the main substrate through the left transition gear shaft 7. The left transition gear shaft 7 is circumferentially provided with a second spacer 7.1. The left transition gear 12 is mounted on the second spacer 7.1. A second liner 7.2 is provided on the upper surface of the main substrate 2 below the second spacer 7.1.

[0078] The right transition gear 13 is mounted on the right transition gear mounting hole 2.6 of the main substrate via the right transition gear shaft 8. The right transition gear shaft 8 is provided with a third spacer 8.1 in a circumferential manner. The right transition gear 13 is mounted on the third spacer 8.1. A third pad 8.2 is provided on the upper surface of the main substrate 2 below the third spacer 8.1.

[0079] It is easy to understand that the torsion gear shaft 6, the left transition gear shaft 7, and the right transition gear shaft 8 are all stepped shafts. All three are fastened to the main base plate 2 by screws and washers at their bottom ends. The other ends of the three are machined with open slots to apply resistance when fastening with tools such as screwdrivers to prevent circumferential rotation. The upper surfaces of the second spacer 7.1 and the third spacer 8.1 are provided with pads. The pads provided at the three stepped shafts limit the position of each gear and prevent the gears from dislodging.

[0080] In addition, the first shim 6.2, the second shim 7.2 and the third shim 8.2 are provided to reduce wear and provide support for each gear.

[0081] refer to Figure 6 As shown, a torsion nut 11.1 is fixed on the upper surface of the torsion gear 11. The torsion nut 11.1 is a hexagonal nut. The torsion nut 11.1 is on top and the torsion gear 11 is below. The torsion nut 11.1 and the torsion gear 11 are an integral structural component and can rotate around the torsion gear shaft 6. The torsion gear 11 is sleeved on the circumferential direction of the first spacer 6.1. Tools such as wrenches or sockets can be used to apply torque to the torsion nut 11.1 to rotate clockwise and counterclockwise around the stepped axis. A first gasket 6.1 is provided at the top of the torsion nut 11.1.

[0082] refer to Figure 7 As shown, the screw hole gear assembly includes two sets, each set of which is located on one side of the transition gear shaft. The two sets of screw hole gear assemblies are symmetrically arranged about a center line of the main base plate, that is, the left screw hole gear and the right screw hole gear in the two screw hole gear assemblies are symmetrical about the central axis of the upper connecting column 1.1 of the telescopic rod, which helps to ensure that the compressive force applied to the hydraulic support rod 1 is balanced and centered.

[0083] Specifically, the left screw-hole gear 9 and the right screw-hole gear 10 are respectively installed on the main substrate 2 at the left screw-hole gear mounting hole 2.7 and the right screw-hole gear mounting hole 2.8. The center hole of the left screw-hole gear 9 is the first threaded hole 9.1. The upper left shim 9.2 is installed on the upper surface of the main substrate 2, and the lower left shim 9.3 is installed on the stepped surface in the left screw-hole gear mounting hole 2.7. The two shims play a role in reducing wear and supporting the rotation and load of the gear. The center hole of the right screw-hole gear 10 is the second threaded hole 10.1. The upper right shim 10.2 is installed on the upper surface of the main substrate, and the lower right shim 10.3 is installed on the stepped surface in the right screw-hole gear mounting hole 2.8. The two shims play a role in reducing wear and supporting the rotation and load of the gear.

[0084] refer to Figure 8 As shown, circular holes are machined on the left and right sides of the main substrate 2. The circular hole 2.9 on the right side and its symmetrical circular hole on the left side are used to apply torque when the gear 11 is twisted. A tool is inserted into one of the circular holes to apply torque in the opposite direction to maintain the balance of force and the stability of position.

[0085] refer to Figure 9As shown, in this embodiment, the pull rods are left pull rod 14 and right pull rod 15, and the fixing components are fixing blocks, namely left fixing block 16 and right fixing block 17. The hydraulic rod 1.3 of the hydraulic support rod 1 moves along the axis of the hydraulic cylinder 1.2. The end of the hydraulic rod 1.3 is equipped with a lower connecting column 1.4. The pin 20 passes through the shaft hole on the lower connecting column 1.4 and the side ear of the lower mounting block 19. The round hole 16.1 on the left fixing block 16 passes into the left end of the pin 20, and the round hole 17.1 on the right fixing block 17 passes into the right end of the pin 20. The bolt 18 passes through the elongated hole on the left fixing block 16 and the right fixing block 17, keeping the two fixing blocks close to the middle. Under the action of external force, the installation position is maintained to prevent them from disengaging from the pin 20.

[0086] Furthermore, the left fixing block 16 and the right fixing block 17 are machined with screw holes. The left pull rod 14 is connected to the left screw hole gear 9 through the left transmission thread 14.1, and the right pull rod 15 is connected to the right screw hole gear 10 through the right transmission thread 15.1. The left pull rod 14 is connected to the left fixing block 16 through the left fastening thread 14.2 and the right pull rod 15 is connected to the right fixing block 17 through the right fastening thread 15.2 and the second nut. The tension and movement of the left pull rod 14 and the right pull rod 15 are transmitted to the pin 20 to resist the elastic force of the hydraulic rod 1.3, so that the lower mounting block 19 is in the required position.

[0087] refer to Figure 10 As shown, the tool provided in this embodiment is installed on the heavy-duty hydraulic support rod 1. By rotating the torsion gear 11, the length of the hydraulic rod 1.3 extending along the hydraulic cylinder 1.2 is adjusted, controlling and maintaining the relative position of the upper mounting block 5 and the lower mounting block 19, making the installation process safe and simple. Moreover, the entire tool can be used by first installing the left fixing block 16 and the right fixing block 17 and connecting them with the tightening bolts 18. On the main base plate 2, install the parts other than the clamping member 3, including five gears: left screw hole gear 9, right screw hole gear 10, torsion gear 11, left transition gear 12, right transition gear 13, left pull rod 14, and right pull rod 15. The left fixing block 16 and the right fixing block 17 are placed at an angle, and the left pull rod 14 and the right pull rod 15 are screwed in. With the pin 20 as the axis, the above-mentioned structural parts are flipped so that the second recess 2.1 on the main base plate 2 rests against the upper connecting column 1.1. At the same time, the clamping member 3 is inserted and tightened with the first bolt 4.1 and the second bolt 4.2.

[0088] This embodiment also provides a method for using a tool to hold a heavy telescopic rod for a shortened protective cover, including the following:

[0089] The torsion gear assembly is rotated by external force;

[0090] The torsion gear assembly transmits torque to the helical gear assembly via the transition gear assembly;

[0091] In the threaded gear assembly, the threaded gear is connected to the connecting rod by a thread, thereby converting rotational motion into axial motion.

[0092] When the torsion gear 11 is rotated clockwise, it drives the left transition gear 12 and the right transition gear 13 to rotate counterclockwise, which in turn drives the left screw hole gear 9 and the right screw hole gear 10 to rotate clockwise on the left pull rod 14 and the right pull rod 15 respectively, converting the rotational motion into axial movement. The left screw hole gear 9 and the right screw hole gear 10 simultaneously apply pressure to the main base plate 2, giving the hydraulic support rod 1 a compressive force, so that the total length of the hydraulic support rod 1 is reduced, so as to resist the extension elastic force of the telescopic rod when disassembling the telescopic rod, or to compress and maintain the telescopic rod to the required length when replacing the telescopic rod.

[0093] When the torsion gear 11 is twisted counterclockwise, the left screw hole gear 9 and the right screw hole gear 10 move upward along the axis of the left and right pull rods, respectively, and the main base plate 2 moves upward under the tension of the hydraulic support rod 1, so as to adjust the length of the telescopic rod as needed.

[0094] The tools provided in this embodiment can be used to assist in the disassembly and installation of telescopic poles, effectively transforming the inefficient and high-consumption maintenance process into a low-consumption, high-efficiency, and simple operation, improving safety, increasing the effective operating rate, improving installation quality, and providing a strong guarantee for reducing personal injury and component damage.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tool for pressing a shortened guard heavy-duty telescopic pole, characterized in that, The system includes a main base plate and a clamping component. The main base plate and clamping component clamp the upper connecting column of the telescopic rod. The upper connecting column is connected to an upper mounting block connected to the same protective cover. The main base plate movably supports a torsion gear assembly. The torsion gear assembly can rotate relative to the main base plate under external force. The torsion gear assembly meshes with a screw-hole gear assembly through a transition gear assembly. The screw-hole gear assembly includes a screw-hole gear and a connecting rod. The screw-hole gear is threaded onto the connecting rod. One end of the connecting rod is connected to a fixing component. The fixing component is connected to the lower connecting column and the lower mounting block of the telescopic rod. The torsion gear assembly transmits torque, and the screw-hole gear assembly converts rotational motion into axial motion, which drives the telescopic rod to extend or shorten through the main base plate. A first recess is provided on one side of the main base plate, and an arc-shaped second recess is provided inside the first recess. The clamping component can be embedded in the first recess of the main base plate, and a third recess is provided on one side of the clamping component. The main base plate and clamping component clamp the upper connecting column through the second and third recesses.

2. The tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 1, characterized in that, The main substrate is provided with a first through hole, and the clamping member is provided with a second through hole. After the clamping member clamps the upper connecting post with the main substrate, the locking member passes through the first through hole and the second through hole. The first recess of the main substrate is fitted and connected to the clamping member.

3. The tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 1, characterized in that, The main substrate is provided with multiple stepped holes, through which the corresponding torsion gear assembly, transition gear assembly and screw hole gear assembly are installed.

4. The tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 1, characterized in that, The torsion gear assembly includes a torsion gear, which is mounted on the main base plate via a torsion gear shaft. A first spacer is circumferentially disposed on the torsion gear shaft, and the torsion gear is mounted at the first spacer. A torsion nut is fixed to the upper surface of the torsion gear, and the torsion nut and the torsion gear are an integral structural component.

5. A tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 1, characterized in that, The transition gear assembly includes two sets, which are located on both sides of the torsion gear assembly and are symmetrically arranged about a center line of the main substrate. The transition gear assembly includes a transition gear, which is mounted on the main base plate via a transition gear shaft. A second spacer is circumferentially disposed on the transition gear shaft, and the transition gear is mounted at the second spacer.

6. A tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 1, characterized in that, The screw hole gear assembly includes two sets, each set of which is located on one side of the transition gear shaft, and the two sets of screw hole gear assemblies are symmetrically arranged about a center line of the main substrate. One end of the screw-hole gear is provided with a protrusion, which is inserted into the main substrate. A lower liner is provided at one end of the protrusion, and an upper liner is provided at the connection between the protrusion and the screw-hole gear.

7. A tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 6, characterized in that, The connecting rod has two parts, and the fixing component is a fixing block. The fixing block includes two blocks, which are located on both sides of the telescopic rod. The connecting rod and the fixing block are detachably connected.

8. A tool for pressing and holding a heavy-duty telescopic rod for shortening a protective cover according to claim 7, characterized in that, The pin passes through the fixing blocks, the lower connecting block, and the lower connecting post on both sides; a tightening bolt is connected between the fixing blocks on both sides, and the tightening bolt is located above the pin.

9. A method of working for a tool for pressing and holding a heavy-duty telescopic rod for a shortened protective cover according to any one of claims 1-8, characterized in that, Includes the following: The torsion gear assembly is rotated by external force; The torsion gear assembly transmits torque to the helical gear assembly via the transition gear assembly; In the threaded gear assembly, the threaded gear is connected to the connecting rod by a thread, thereby converting rotational motion into axial motion. The screw-hole gear applies pressure to the main base plate, causing the telescopic rod to retract and the total length of the telescopic rod to decrease. This is to resist the extension force of the telescopic rod when it is disassembled, or to compress and maintain the telescopic rod to the required length when it is replaced. The reverse-rotating torsion gear set transmits torque to the screw hole gear assembly through the transition gear assembly. Under the action of the threaded structure, the screw hole gear moves upward relative to the connecting rod, and the main base plate moves upward under the tension of the telescopic rod, that is, the telescopic rod extends, so as to adjust the length of the telescopic rod as needed.

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