Synchronous lifting jack and using method thereof

Abstract

The invention discloses a synchronous lifting jack and a using method thereof.The synchronous lifting jack comprises a base, an oil tank is arranged on the surface of the base, an integrated block assembly is arranged behind the oil tank, a main oil cylinder is arranged on the right side of the oil tank, an auxiliary oil cylinder is arranged on the right side of the integrated block assembly, and the top of the main oil cylinder and the top of the auxiliary oil cylinder are connected with an abutting assembly; an auxiliary mechanism is arranged below the middle of the abutting assembly, and a convenient mechanism is arranged on the inner side of the right end of the base. When the ejector rod is seriously abraded and needs to be disassembled and replaced, the U-shaped rod is pulled outwards to extrude the spring, at the moment, the end of the U-shaped rod is separated from the interior of the clamping strip, the clamping strip can be directly pulled out of the fixed groove frame without being limited, and rapid disassembly of the ejector rod is effectively completed; then the clamping strip at the lower end of the replaced ejector rod is clamped into the fixing groove frame on the basis that the U-shaped rod is pulled outwards, meanwhile, the U-shaped rod is loosened, the end of the U-shaped rod is clamped into a new clamping strip under the influence of resilience force of the spring, and rapid installation of the replaced ejector rod is effectively completed.

Description

Technical Field

[0001] The invention relates to the technical field of synchronous lifting jacks, and in particular to a synchronous lifting jack and a use method thereof. Background Art

[0002] Synchronous lifting jacks are mainly used for the overall lifting of railway bridges, the synchronous rising and lowering of large mechanical equipment, etc. It can ensure that multiple jacks work synchronously to avoid deformation or damage of components caused by asynchrony. This type of jack is suitable for large heavy objects to ensure safety and efficiency during construction.

[0003] Patent No. CN108100920A provides a synchronous lifting jack and a jack hydraulic system, which belongs to the field of jack technology. One end of the main oil cylinder and the auxiliary oil cylinder is set on the base, and the two ends of the bridge-shaped push rod assembly are respectively connected to the end of the main oil cylinder away from the base and the end of the auxiliary oil tank away from the base. The oil tank is connected to the main oil cylinder and the auxiliary oil cylinder. The integrated block assembly is used to control the mutual circulation of hydraulic oil between the oil tank, the main oil cylinder and the auxiliary oil cylinder. The hydraulic oil in the oil tank is pumped out through the jack hydraulic system, so that the hydraulic oil enters the lower chamber of the main oil cylinder from the oil tank, pushes the main piston rod to rise, and the hydraulic oil in the upper chamber of the main oil cylinder enters the lower chamber of the auxiliary oil cylinder, pushes the auxiliary piston rod to rise, and the hydraulic oil in the upper chamber of the auxiliary oil cylinder enters the oil tank, thereby realizing the circulation of hydraulic oil. Because the main piston rod and the auxiliary piston rod are both pushed upward, they lift the aircraft through the bridge-shaped push rod assembly to facilitate the inspection or replacement of the aircraft wheel.

[0004] The above-mentioned synchronous lifting jack and jack hydraulic system still have the following shortcomings:

[0005] The above-mentioned synchronous lifting jack is in contact with and supported by the aircraft through a bridge-shaped top rod assembly. In order not to damage the structure of the piston rod itself, the piston rod and the bridge-shaped top rod assembly are often fixedly connected. Since the bridge-shaped top rod assembly needs to support the aircraft for a long time during use, the bridge-shaped top rod assembly will produce corresponding wear. When the wear is more serious, it is easy to cause the surface of the bridge-shaped top rod assembly to be uneven, affecting the subsequent balanced support. However, the fixedly connected bridge-shaped top rod assembly is difficult to disassemble and replace, and it is time-consuming and labor-intensive for personnel to operate. For this reason, we propose a synchronous lifting jack and a method for using it. Summary of the invention

[0006] The object of the present invention is to provide a synchronous lifting jack and a method for using the same, so as to solve the problem proposed in the above background technology that the synchronous lifting jack is in contact with and supported by an aircraft through a bridge-shaped top rod assembly. In order not to damage the structure of the piston rod itself, the piston rod and the bridge-shaped top rod assembly are often fixedly connected. Since the bridge-shaped top rod assembly needs to support the aircraft for a long time during use, the bridge-shaped top rod assembly will produce corresponding wear. When the wear is more serious, it is easy to cause the surface of the bridge-shaped top rod assembly to be uneven, affecting the subsequent balanced support. However, the fixedly connected bridge-shaped top rod assembly is difficult to disassemble and replace, and it is time-consuming and labor-intensive for personnel to operate.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a synchronous lifting jack and a method for using the same, comprising a base, an oil tank is provided on the surface of the base, an integrated block assembly is provided behind the oil tank, a main oil cylinder is provided on the right side of the oil tank, an auxiliary oil cylinder is provided on the right side of the integrated block assembly, a top-pushing assembly is connected to the top of the main oil cylinder and the auxiliary oil cylinder, an auxiliary mechanism is provided at the lower middle part of the top-pushing assembly, and a convenient mechanism is provided on the inner side of the right end of the base;

[0008] The push-up assembly includes a fixed groove frame, which is fixed on the top of the piston rod of the main oil cylinder and the auxiliary oil cylinder. A clamping strip is matched and engaged inside the fixed groove frame, and a push rod is fixed on the top of the clamping strip. A U-shaped rod is inserted on the side of the fixed groove frame, and a guide rod passes through the middle of the U-shaped rod. A spring is sleeved on the surface of the guide rod, and a cap is sleeved on the end of the guide rod.

[0009] Preferably, the clamping strip and the top rod are integrally formed, and the end of the U-shaped rod passes through one side of the fixed slot frame and then clamps into the inside of the clamping strip.

[0010] Preferably, the U-shaped rod forms an elastic structure through a spring and a guide rod, the guide rod is fixedly connected to the fixed slot frame, and the guide rod is threadedly connected to the cover cap.

[0011] Preferably, the auxiliary mechanism includes a movable rod, which is fixed to the bottom of the fixed slot frame, and a rack frame is sleeved on the outside of the movable rod. A gear is meshed on one side of the rack frame, and a bracket is clamped on the outside of the gear. One end of the gear is connected to a drive motor, and a positioning frame is provided on the outside of the drive motor, and a plurality of limit screws are inserted on the inner side of the bottom of the bracket.

[0012] Preferably, a slot matching the movable rod is provided inside the rack frame, and the movable rod can slide up and down along the slot inside the rack frame.

[0013] Preferably, the gear forms a meshing transmission structure with a rack frame through a driving motor, the gear is movably engaged in the bracket, and the bracket and the positioning frame are fixedly connected.

[0014] Preferably, the convenient mechanism includes a shaft rod, which is movably engaged with the inner side of the right end of the base, a group of limit frames are fixed to the outside of the shaft rod, a roller is engaged with the inner side of the limit frame, and a small motor is connected to one end of the shaft rod.

[0015] Preferably, the limiting frame forms a rotating structure through a shaft and a small motor, and the small motor is embedded in the inner side of the base.

[0016] Preferably, the

[0017] S1. The staff pushes the device as a whole to the bottom of the aircraft to be inspected through a convenient mechanism, and then drives the shaft to rotate counterclockwise through a small motor, so that the limit frame and rollers are retracted, and the base is placed stably on the ground;

[0018] S2. The piston rods in the main oil cylinder and the auxiliary oil cylinder rise through the cooperation between the oil tank and the integrated block assembly, thereby driving the push-up assembly to move up and lift the aircraft. At this time, the movable rod moves up with the push-up assembly, and then the gear is driven by the driving motor to rotate counterclockwise, thereby moving the rack frame up so that the bottom of the movable rod fits with the bottom of the rack frame slot. At this time, the rack frame locks the movable rod to increase safety;

[0019] S3. After the work is finished, the gear is driven by the driving motor to rotate clockwise, so that the rack frame moves down. At this time, there is space for the movable rod to descend inside the rack frame. Then, the piston rods in the main cylinder and the auxiliary cylinder are lowered through the cooperation between the oil tank and the integrated block assembly, thereby driving the top assembly to move down and the movable rod returns to its position;

[0020] S4. The shaft is driven to rotate clockwise by a small motor, so that the limit frame and the roller are released, and the entire device can be transferred by the roller until it reaches the storage location;

[0021] S5. When the ejector rod is seriously worn and needs to be disassembled and replaced, the U-shaped rod is pulled outward to squeeze the spring. At this time, the end of the U-shaped rod is separated from the inside of the clip strip, and the clip strip can be directly pulled out of the fixed slot frame without restriction, completing the rapid disassembly of the ejector rod. After that, the clip strip at the lower end of the replaced ejector rod is inserted into the inside of the fixed slot frame on the basis of pulling the U-shaped rod outward. At the same time, the U-shaped rod is loosened. Under the influence of the spring rebound force, the end of the U-shaped rod is inserted into the new clip strip, completing the rapid installation of the replaced ejector rod.

[0022] S6. Cover the entire device with a dust cover to complete storage.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, when the push rod is severely worn and needs to be disassembled and replaced, the U-shaped rod is pulled outward to squeeze the spring. At this time, the end of the U-shaped rod is separated from the interior of the clamping strip, and the clamping strip can be directly pulled out of the fixed slot frame without restriction, thereby effectively completing the rapid disassembly of the push rod. Thereafter, the clamping strip at the lower end of the replaced push rod is clamped into the interior of the fixed slot frame on the basis of pulling the U-shaped rod outward. At the same time, the U-shaped rod is loosened. Under the influence of the spring rebound force, the end of the U-shaped rod is clamped into the interior of the new clamping strip, thereby effectively completing the rapid installation of the replaced push rod.

[0025] 2. The present invention enables the piston rods in the main oil cylinder and the auxiliary oil cylinder to rise through the cooperation between the oil tank and the integrated block assembly, thereby driving the push-up assembly to move up and lift the aircraft. At this time, the movable rod follows the push-up assembly to move up, and then the driving motor effectively drives the gear to rotate counterclockwise, thereby moving the rack frame up so that the bottom of the movable rod fits with the bottom of the rack frame slot. At this time, the rack frame effectively locks the movable rod to increase safety. After the work is completed, the driving motor effectively drives the gear to rotate clockwise to move the rack frame down. At this time, there is space for the movable rod to descend inside the rack frame. Then, the oil tank and the integrated block assembly cooperate to make the piston rods in the main oil cylinder and the auxiliary oil cylinder descend, thereby driving the push-up assembly to move down and the movable rod returns to its position.

[0026] 3. The present invention uses a small motor to effectively drive the shaft to rotate counterclockwise, so that the limit frame and the roller are retracted, which facilitates the base to be placed stably on the ground. Conversely, the small motor effectively drives the shaft to rotate clockwise, so that the limit frame and the roller are released, and the entire device can be conveniently transferred by the roller until it reaches the storage location. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the disassembly structure of the base and the convenient mechanism of the present invention;

[0029] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0030] Figure 4 It is another perspective overall structural schematic diagram of the present invention;

[0031] Figure 5 It is a schematic diagram of the disassembled structure of the abutment assembly of the present invention.

[0032] In the figure: 1. base; 2. oil tank; 3. integrated block assembly; 4. main oil cylinder; 5. auxiliary oil cylinder; 6. top support assembly; 7. auxiliary mechanism; 8. convenient mechanism;

[0033] 601, fixed slot frame; 602, clamping strip; 603, ejector rod; 604, U-shaped rod; 605, guide rod; 606, spring; 607, cap;

[0034] 701, movable rod; 702, rack; 703, gear; 704, bracket; 705, drive motor; 706, positioning frame; 707, limit screw;

[0035] 801, shaft; 802, limit frame; 803, roller; 804, small motor. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-5 The present invention provides a technical solution: a synchronous lifting jack and a method for using the same, comprising a base 1, an oil tank 2 is provided on the surface of the base 1, an integrated block assembly 3 is provided behind the oil tank 2, a main oil cylinder 4 is provided on the right side of the oil tank 2, an auxiliary oil cylinder 5 is provided on the right side of the integrated block assembly 3, a top-pushing assembly 6 is connected to the top of the main oil cylinder 4 and the auxiliary oil cylinder 5, an auxiliary mechanism 7 is provided at the lower middle part of the top-pushing assembly 6, and a convenient mechanism 8 is provided on the inner side of the right end of the base 1;

[0038] The push-up assembly 6 includes a fixed slot frame 601, which is fixedly arranged on the top of the piston rod of the main oil cylinder 4 and the auxiliary oil cylinder 5. A clamping strip 602 is matched and engaged inside the fixed slot frame 601, and a push rod 603 is fixedly connected to the top of the clamping strip 602. A U-shaped rod 604 is inserted on the side of the fixed slot frame 601, wherein the clamping strip 602 and the push rod 603 are integrally formed, and the end of the U-shaped rod 604 passes through one side of the fixed slot frame 601 and is engaged with the inside of the clamping strip 602. A guide rod 605 passes through the middle of the U-shaped rod 604, and a spring 606 is sleeved on the surface of the guide rod 605. A cap 607 is sleeved on the end of the guide rod 605. Furthermore, the U-shaped rod 604 forms an elastic structure with the guide rod 605 through the spring 606, the guide rod 605 and the fixed slot frame 601 are fixedly connected, and the guide rod 605 and the cap 607 are threadedly connected. In the present invention, when the push rod 603 is severely worn and needs to be disassembled and replaced, the U-shaped rod 604 is pulled outward to squeeze the spring 606. At this time, the end of the U-shaped rod 604 is separated from the interior of the clamping strip 602, and the clamping strip 602 can be directly pulled out of the fixed slot frame 601 without restriction, thereby effectively completing the rapid disassembly of the push rod 603. Thereafter, on the basis of pulling the U-shaped rod 604 outward, the clamping strip 602 at the lower end of the replaced push rod 603 is clamped into the interior of the fixed slot frame 601, and the U-shaped rod 604 is released at the same time. Under the influence of the rebound force of the spring 606, the end of the U-shaped rod 604 is clamped into the interior of the new clamping strip 602, thereby effectively completing the rapid installation of the replaced push rod 603.

[0039] The auxiliary mechanism 7 includes a movable rod 701, which is fixed to the bottom of the fixed slot frame 601. A rack frame 702 is sleeved on the outside of the movable rod 701, wherein a slot matching the movable rod 701 is opened inside the rack frame 702, and the movable rod 701 can slide up and down along the internal slot of the rack frame 702. A gear 703 is meshed on one side of the rack frame 702, and a bracket 704 is clamped on the outside of the gear 703. A driving motor 705 is connected to one end of the gear 703, and a positioning frame 706 is provided on the outside of the driving motor 705. Furthermore, the gear 703 forms a meshing transmission structure with the rack frame 702 through the driving motor 705, and the gear 703 is movably engaged with the inside of the bracket 704. The bracket 704 and the positioning frame 706 are fixedly connected, and a number of limit screws 707 are inserted on the inner side of the bottom of the bracket 704. The present invention enables the piston rods in the main oil cylinder 4 and the auxiliary oil cylinder 5 to rise through the cooperation between the oil tank 2 and the integrated block assembly 3, thereby driving the push-up assembly 6 to move up and lift the aircraft. At this time, the movable rod 701 moves up with the push-up assembly 6, and then the driving motor 705 effectively drives the gear 703 to rotate counterclockwise, thereby moving the rack frame 702 up so that the bottom of the movable rod 701 fits with the bottom of the rack frame 702 slot. At this time, the rack frame 702 effectively locks the movable rod 701 to increase safety. After the work is completed, the driving motor 705 effectively drives the gear 703 to rotate clockwise, so that the rack frame 702 moves down. At this time, there is space for the movable rod 701 to fall inside the rack frame 702. Then, the piston rods in the main oil cylinder 4 and the auxiliary oil cylinder 5 are lowered through the cooperation between the oil tank 2 and the integrated block assembly 3, thereby driving the push-up assembly 6 to move down and the movable rod 701 returns to its position.

[0040] The convenient mechanism 8 includes a shaft 801, which is movably engaged with the inner side of the right end of the base 1, a set of limit frames 802 are fixedly arranged on the outside of the shaft 801, a roller 803 is engaged with the inner side of the limit frame 802, and a small motor 804 is connected to one end of the shaft 801, wherein the limit frame 802 forms a rotating structure through the shaft 801 and the small motor 804, and the small motor 804 is embedded in the inner side of the base 1. The present invention effectively drives the shaft 801 to rotate counterclockwise through the small motor 804, so that the limit frame 802 and the roller 803 are retracted, so that the base 1 is placed stably on the ground, and vice versa, the shaft 801 is effectively driven by the small motor 804 to rotate clockwise, so that the limit frame 802 and the roller 803 are released, and the device as a whole can be conveniently transferred through the roller 803 until it reaches the storage place.

[0041] Working principle: This type of synchronous lifting jack and its use are as follows:

[0042] S1. The staff pushes the whole device to the bottom of the aircraft to be inspected through the convenient mechanism 8, and then drives the shaft 801 to rotate counterclockwise through the small motor 804, so that the limit frame 802 and the roller 803 are retracted, so that the base 1 is stably placed on the ground;

[0043] S2. The piston rods in the main oil cylinder 4 and the auxiliary oil cylinder 5 rise through the cooperation between the oil tank 2 and the integrated block assembly 3, thereby driving the push assembly 6 to move up and lift the aircraft. At this time, the movable rod 701 moves up with the push assembly 6, and then the gear 703 is driven by the driving motor 705 to rotate counterclockwise, thereby moving the rack 702 up so that the bottom of the movable rod 701 fits with the bottom of the rack 702 slot. At this time, the rack 702 locks the movable rod 701 to increase safety;

[0044] S3, after the work is finished, the gear 703 is driven by the driving motor 705 to rotate clockwise, so that the rack 702 moves down. At this time, there is space for the movable rod 701 to move down inside the rack 702. Then, the piston rods in the main cylinder 4 and the auxiliary cylinder 5 are lowered through the cooperation between the oil tank 2 and the integrated block assembly 3, thereby driving the top assembly 6 to move down and the movable rod 701 returns to its position;

[0045] S4, the shaft 801 is driven to rotate clockwise by the small motor 804, so that the limit frame 802 and the roller 803 are released, and the entire device can be transferred by the roller 803 until it reaches the storage place;

[0046] S5. When the push rod 603 is seriously worn and needs to be disassembled and replaced, the U-shaped rod 604 is pulled outward to squeeze the spring 606. At this time, the end of the U-shaped rod 604 is separated from the inside of the clamping strip 602, and the clamping strip 602 can be directly withdrawn from the fixed slot frame 601 without restriction, completing the rapid disassembly of the push rod 603. Then, on the basis of pulling the U-shaped rod 604 outward, the clamping strip 602 at the lower end of the replaced push rod 603 is clamped into the inside of the fixed slot frame 601, and the U-shaped rod 604 is loosened at the same time. Under the influence of the rebound force of the spring 606, the end of the U-shaped rod 604 is clamped into the inside of the new clamping strip 602, completing the rapid installation of the replaced push rod 603;

[0047] S6. Cover the entire device with a dust cover to complete storage.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous lifting jack, comprising a base (1), characterized in that: The surface of the base (1) is provided with an oil tank (2), the rear of the oil tank (2) is provided with an integrated block assembly (3), the right side of the oil tank (2) is provided with a main oil cylinder (4), the right side of the integrated block assembly (3) is provided with an auxiliary oil cylinder (5), the tops of the main oil cylinder (4) and the auxiliary oil cylinder (5) are connected with a top-pushing assembly (6), the middle and lower part of the top-pushing assembly (6) is provided with an auxiliary mechanism (7), and the inner side of the right end of the base (1) is provided with a convenient mechanism (8); The push-up assembly (6) comprises a fixed slot frame (601), the fixed slot frame (601) is fixedly arranged on the top of the piston rod of the main oil cylinder (4) and the auxiliary oil cylinder (5), a clamping strip (602) is matched and engaged inside the fixed slot frame (601), a push rod (603) is fixedly connected to the top of the clamping strip (602), a U-shaped rod (604) is inserted on the side of the fixed slot frame (601), a guide rod (605) passes through the middle of the U-shaped rod (604), a spring (606) is sleeved on the surface of the guide rod (605), and a cover cap (607) is sleeved on the end of the guide rod (605).

2. A synchronous lifting jack according to claim 1, characterized in that: The clamping strip (602) and the top rod (603) are integrally formed, and the end of the U-shaped rod (604) passes through one side of the fixed slot frame (601) and is then clamped inside the clamping strip (602).

3. A synchronous lifting jack according to claim 1, characterized in that: The U-shaped rod (604) forms an elastic structure with the guide rod (605) through the spring (606), the guide rod (605) and the fixed slot frame (601) are fixedly connected, and the guide rod (605) and the cover cap (607) are threadedly connected.

4. A synchronous lifting jack according to claim 1, characterized in that: The auxiliary mechanism (7) comprises a movable rod (701), the movable rod (701) is fixedly connected to the bottom of the fixed slot frame (601), a rack frame (702) is sleeved on the outside of the movable rod (701), a gear (703) is meshed on one side of the rack frame (702), a bracket (704) is clamped on the outside of the gear (703), one end of the gear (703) is connected to a driving motor (705), a positioning frame (706) is arranged on the outside of the driving motor (705), and a plurality of limit screws (707) are inserted into the inner side of the bottom of the bracket (704).

5. A synchronous lifting jack according to claim 4, characterized in that: A slot matching the movable rod (701) is provided inside the rack frame (702), and the movable rod (701) can slide up and down along the slot inside the rack frame (702).

6. A synchronous lifting jack according to claim 4, characterized in that: The gear (703) forms a meshing transmission structure with the rack frame (702) through a driving motor (705), the gear (703) is movably engaged in the interior of the bracket (704), and the bracket (704) and the positioning frame (706) are fixedly connected.

7. The synchronous lifting jack according to claim 1, characterized in that: The convenient mechanism (8) comprises a shaft (801), wherein the shaft (801) is movably engaged with the inner side of the right end of the base (1), a group of limit frames (802) are fixedly arranged outside the shaft (801), a roller (803) is engaged inside the limit frame (802), and one end of the shaft (801) is connected to a small motor (804).

8. A synchronous lifting jack according to claim 7, characterized in that: The limiting frame (802) forms a rotating structure through the shaft (801) and the small motor (804), and the small motor (804) is embedded in the inner side of the base (1).

9. A synchronous lifting jack and a method of using the same according to claims 1-8, characterized in that: S1. The staff pushes the whole device to the bottom of the aircraft to be inspected through the convenient mechanism (8), and then drives the shaft (801) to rotate counterclockwise through the small motor (804), so that the limit frame (802) and the roller (803) are retracted, so that the base (1) is stably placed on the ground; S2. The piston rods in the main oil cylinder (4) and the auxiliary oil cylinder (5) are raised by the cooperation between the oil tank (2) and the integrated block assembly (3), thereby driving the push assembly (6) to move upward and lift the aircraft. At this time, the movable rod (701) moves upward along with the push assembly (6), and then the gear (703) is driven by the driving motor (705) to rotate counterclockwise, thereby moving the rack (702) upward so that the bottom of the movable rod (701) fits with the bottom of the rack (702) slot. At this time, the rack (702) locks the movable rod (701) to increase safety. S3. After the work is completed, the gear (703) is driven by the driving motor (705) to rotate clockwise, so that the rack (702) moves downward. At this time, there is space inside the rack (702) for the movable rod (701) to move downward. Then, the piston rods in the main cylinder (4) and the auxiliary cylinder (5) are lowered through the cooperation between the oil tank (2) and the integrated block assembly (3), thereby driving the push assembly (6) to move downward and the movable rod (701) returns to its original position. S4, the shaft (801) is driven to rotate clockwise by a small motor (804), so that the limit frame (802) and the roller (803) are released, and the entire device can be transferred by the roller (803) until it reaches the storage location; S5. When the push rod (603) is seriously worn and needs to be disassembled and replaced, the U-shaped rod (604) is pulled outward to squeeze the spring (606). At this time, the end of the U-shaped rod (604) is separated from the inside of the clamping strip (602). The clamping strip (602) is not restricted and can be directly withdrawn from the fixed slot frame (601), completing the rapid disassembly of the push rod (603). After that, the clamping strip (602) at the lower end of the replaced push rod (603) is clamped into the inside of the fixed slot frame (601) on the basis of pulling the U-shaped rod (604) outward. At the same time, the U-shaped rod (604) is loosened. Under the influence of the rebound force of the spring (606), the end of the U-shaped rod (604) is clamped into the inside of the new clamping strip (602), completing the rapid installation of the replaced push rod (603); S6. Cover the entire device with a dust cover to complete storage.

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