Fire extinguisher valve part threading equipment and using method thereof

Abstract

The invention relates to the technical field of valve machining, and discloses fire extinguisher valve part thread turning equipment and a using method thereof.The fire extinguisher valve part thread turning equipment comprises a shell, a base is fixedly connected to the inner wall of the shell, two sliding blocks are slidably connected to the top of the base, and two electric telescopic rods are fixedly connected to the top of the base; an electric telescopic rod is started to push a sliding block to move, the inclined face of an inclined face block is driven to extrude a pushing frame to move towards a containing frame, a spring sliding frame is pushed to move, a first connecting rod rotates, an arc-shaped block is pushed to move towards the inner wall of a fire extinguisher valve, and an arc-shaped expansion bag is driven to move; and the extrusion ring is driven to extrude gas in the air pressure cylinder, the gas enters the arc-shaped expansion bag through the telescopic pipe, the arc-shaped expansion bag is inflated for preliminary expansion, the fire extinguisher valve is flexibly clamped, supporting force is evenly applied to the fire extinguisher valve, the influence of center-of-gravity shift on the fire extinguisher valve in the rotating process is reduced, and the stability of the fire extinguisher valve in the rotating process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of valve processing equipment, in particular to a fire extinguisher valve component threading equipment and a use method thereof. Background Art

[0002] Valves are control components in fluid delivery systems and have functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion and overflow pressure relief. Fire extinguisher valves are key components of fire extinguishers and are mainly used to control the switch of fire extinguishers and release fire extinguishing agents. Their functions include sealing, withstanding high pressure and quickly releasing fire extinguishing agents when in use. Fire extinguisher valves are usually composed of multiple components, such as valve body, valve core, valve cover and pressure gauge interface. During the production process of fire extinguisher valves, it is often necessary to use a threading device to process the valve threads.

[0003] Among them, when threading the fire extinguisher valve, a thread rolling wheel is often used for thread processing. The fire extinguisher valve also needs to be rotated during the processing, but the shape of the fire extinguisher valve is irregular, which can easily cause the center of gravity of the valve to change, and may cause the valve to shake during rotation, affecting the stability of the processing. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a fire extinguisher valve component threading device, comprising a shell, a base is fixedly connected to the inner wall of the shell, two sliding blocks are slidably connected to the top of the base, two electric telescopic rods are fixedly connected to the top of the base, and the output ends at the side walls of the two electric telescopic rods are fixedly connected to the side walls of the two sliding blocks;

[0005] The thread rolling mechanism includes a fire extinguisher valve, a thread rolling wheel, a motor, and a placement rack for processing the threads of the fire extinguisher valve, and a limit assembly for limiting and clamping the fire extinguisher valve;

[0006] There are two thread rolling wheels and two motors, the outer walls of the two thread rolling wheels are rotatably connected to the inner walls of the two sliding blocks, and the side walls of the two sliding blocks are fixedly connected to the side walls of the two motors;

[0007] Among them, the output ends at the side walls of the two motors are fixedly connected to the side walls of the two thread rolling wheels, the bottom of the placement rack is fixedly connected to the top of the shell, and the outer wall of the fire extinguisher valve is placed on the top of the placement rack. The staff opens the protective door on the shell, and then places the fire extinguisher valve to be processed on the placement rack, and then closes the protective door, starts the motor to drive the thread rolling wheel to rotate, and then starts the electric telescopic rod to push the sliding block toward the fire extinguisher valve, so that the thread rolling wheel is close to the fire extinguisher valve. During the continuous movement of the sliding block located at the front, the inclined surface of the inclined surface block will be driven to contact the pushing rack, squeezing the pushing rack, so that the pushing rack moves toward the placement rack, so that the pushing rack contacts the spring sliding rack, and pushes the spring sliding rack to move, so that the spring sliding rack accumulates rebound force. When the spring sliding rack moves, it will push the connecting rod to rotate, so that the connecting rod folds, and pushes the arc block toward the inner wall of the fire extinguisher valve. The spring slide frame moves in the same direction, driving the arc expansion bag to move. At the same time, when the spring slide frame moves, it also drives the extrusion ring to move, squeezing the gas in the air pressure cylinder. The squeezed gas enters the arc expansion bag through the telescopic tube, inflating the arc expansion bag for preliminary expansion, until the inclined surface of the inclined surface block is separated from the pushing frame, and the arc expansion bag will contact the inner wall of the fire extinguisher valve to flexibly clamp the fire extinguisher valve. The sliding block continues to move until the thread rolling wheel contacts the fire extinguisher valve to squeeze the fire extinguisher valve. The fire extinguisher valve is driven to rotate by the rotation of the thread rolling wheel, and the fire extinguisher valve is threaded. By flexibly clamping the fire extinguisher valve, the supporting force is evenly applied to reduce the influence of the center of gravity offset on the fire extinguisher valve during rotation, effectively prevent the irregular shape of the fire extinguisher valve, which causes the fire extinguisher valve to shake when it rotates, and ensure the stability of its rotation process.

[0008] Preferably, the limiting assembly includes a fixed block fixedly connected to the top of the base, a rotating rod is rotatably connected to the inner wall of the fixed block, a bevel block is fixedly connected to the back of the sliding block located at the front, and a pushing frame is slidably connected to the inner wall of the fixed block;

[0009] Wherein, a spring sliding frame is slidably connected to the outer wall of the rotating rod, and an air pressure cylinder is fixedly connected to the outer wall of the rotating rod.

[0010] Preferably, the limit assembly further comprises three arc blocks arranged on the outer wall of the rotating rod, the three arc blocks are rotatably connected to two connecting rods 1 on one side close to the outer wall of the rotating rod, and the inner walls of the three connecting rods 1 on the left side are rotatably connected to the outer wall of the rotating rod;

[0011] Among them, the inner walls of the three connecting rods located on the right side are all slidably connected to the outer wall of the spring sliding frame, and the side wall of the fixed block is provided with an incremental component.

[0012] Preferably, the limiting assembly also includes an extrusion ring slidably connected to the inner wall of the air pressure cylinder, the side wall of the extrusion ring is fixedly connected to the side wall of the spring sliding frame, the inner wall of the air pressure cylinder is connected through three telescopic tubes, the three arc blocks are fixedly connected to an arc expansion bag on one side away from the outer wall of the rotating rod, and the outer walls of the three telescopic tubes are connected through the inner walls of the three arc expansion bags.

[0013] Preferably, the incremental assembly includes a gas pressure frame 1 fixedly connected to the side wall of the fixed block, a piston plate 1 is slidably connected to the inner wall of the gas pressure frame 1, a connecting rod 2 is rotatably connected to the bottom of the piston plate 1, and the side wall of the push frame is rotatably connected to the inner wall of the connecting rod 2;

[0014] Among them, the top of the air pressure frame is connected with a gas pipe 1, and the bottom of the piston plate 1 is fixedly connected with a connecting rod. When the push frame moves toward the fire extinguisher valve, it will also drive the connecting rod 2 to move, causing the connecting rod 2 to rotate, pushing the piston plate 1 up, and squeezing the gas in the air pressure frame 1.

[0015] Preferably, the incremental assembly further comprises a connecting groove provided on the inner wall of the rotating rod, a rotating ring is rotatably connected to the outer wall of the rotating rod, the inner wall of the rotating ring is through-connected to the outer wall of the gas delivery pipe, two protrusions are fixedly connected to the outer wall of the rotating rod, and a blocking pipe is fixedly connected to the inner wall of the rotating ring;

[0016] Among them, a spring bevel ring is slidably connected to the inner wall of the choke tube, and a blocking component is provided at the side wall of the fixed block. The squeezed gas will enter the rotating ring through the gas supply pipe. At this time, the gas will be blocked by the spring bevel ring, so the gas will generate high pressure. When the fire extinguisher valve rotates, the supporting force of the arc-shaped expansion bag on the fire extinguisher valve will drive the arc-shaped expansion bag to rotate, thereby driving the rotating rod to rotate and causing the protrusion to rotate. When the protrusion rotates and contacts the spring bevel ring, it will squeeze the spring bevel ring to descend, allowing the spring bevel ring to separate from the bevel in the choke tube, thereby canceling the obstruction to the gas. At this time, the high-pressure gas will enter the connecting groove through the choke tube, enter the air pressure cylinder through the connecting groove, and finally enter the arc-shaped expansion bag, allowing the arc-shaped expansion bag to expand again.

[0017] Preferably, the blocking assembly comprises a second air pressure frame fixedly connected to the side wall of the fixed block, a second piston plate is slidably connected to the inner wall of the second air pressure frame, the bottom of the second piston plate is fixedly connected to the top of the connecting rod, three air holes are opened on the outer wall of the second air pressure frame, and a second air delivery pipe is connected through the top of the second air pressure frame;

[0018] Among them, an air intake pipe is connected through the inner wall of the air supply pipe No. 2, and an air intake one-way valve is slidably connected to the inner wall of the air intake pipe. The outer wall of the air intake pipe is connected through the inner wall of the air pressure frame No. 2. When the piston plate No. 1 rises, the connecting rod will be driven to rise, and the piston plate No. 2 will be driven to rise through the connecting rod, so that the piston plate No. 2 squeezes the gas in the air pressure frame No. 2. As the piston plate No. 2 continues to move, the gas pressure in the air pressure frame No. 2 will increase.

[0019] Preferably, the blocking assembly further comprises a spring push rod slidably connected to the second inner wall of the gas delivery pipe, the top of the spring push rod is fixedly connected to a Z-shaped blocking plate, the outer wall of the Z-shaped blocking plate is slidably connected to the inner wall of the rotating ring, and the top of the Z-shaped blocking plate is fixedly connected to a fixed frame;

[0020] Among them, a spring inclined surface block is slidably connected to the inner wall of the fixed frame, and a spring clamping rod is slidably connected to the inner wall of the fixed frame. The high-pressure gas will push the spring pushing rod to rise, drive the Z-shaped blocking plate to rise, make the Z-shaped blocking plate close to the air blocking tube, and let the Z-shaped blocking plate block the air blocking tube. When the spring inclined surface ring descends, the high-pressure gas in the air delivery pipe can only enter the connecting groove through the groove on the Z-shaped blocking plate.

[0021] Preferably, the blocking assembly further comprises an inclined plate fixedly connected to the top of the second gas delivery pipe, an air outlet pipe is fixedly connected to the inner wall of the rotating ring, and a spring blocking rod is slidably connected to the side wall of the rotating ring;

[0022] Among them, a fixing rod is fixedly connected to the side wall of the rotating ring, and the outer wall of the spring blocking rod is slidably connected to the inner wall of the air outlet pipe. When the Z-shaped blocking plate rises, it will drive the fixed frame and the spring inclined surface block to rise, so that the inclined surface of the spring inclined surface block squeezes the spring blocking rod to move, so that the spring blocking rod enters the air outlet pipe, thereby blocking the air outlet pipe; as the spring inclined surface block continues to move, the spring inclined surface block will contact the fixed rod to block the spring inclined surface block and stop the spring inclined surface block from moving. When the fixed frame continues to move, it will squeeze the spring at the bottom of the spring inclined surface block to accumulate rebound force. During the continuous movement of the fixed frame, the spring clamping rod will also be driven to rise.

[0023] A method for using a threading device for a fire extinguisher valve component comprises the following steps:

[0024] S1: Workpiece placement: The worker opens the protective door on the shell and then places the fire extinguisher valve to be processed on the placement rack;

[0025] S2: Start the equipment: Start the motor to drive the thread rolling wheel to rotate, then start the electric telescopic rod to push the sliding block to move toward the fire extinguisher valve, so that the thread rolling wheel is close to the fire extinguisher valve;

[0026] S3: Workpiece clamping: During the continuous movement of the sliding block at the front, the inclined surface of the inclined surface block will be driven to contact with the push frame, squeezing the push frame, so that the push frame moves toward the placement frame, causing the push frame to contact with the spring sliding frame, and pushing the spring sliding frame to move.

[0027] The present invention has the following beneficial effects:

[0028] (1) When the present invention is used, the staff opens the protective door on the shell, and then places the fire extinguisher valve to be processed on the placement rack, and then closes the protective door, starts the motor to drive the thread rolling wheel to rotate, and then starts the electric telescopic rod to push the sliding block to move toward the fire extinguisher valve, so that the thread rolling wheel is close to the fire extinguisher valve. During the continuous movement of the sliding block located at the front, the inclined surface of the inclined surface block will be driven to contact with the pushing rack, squeezing the pushing rack, so that the pushing rack moves toward the placement rack, so that the pushing rack contacts with the spring sliding rack, pushing the spring sliding rack to move, and allowing the spring sliding rack to accumulate rebound force. When the spring sliding rack moves, it will push the connecting rod to rotate, so that the connecting rod 1 is folded, and the arc block is pushed to move toward the inner wall of the fire extinguisher valve, driving the arc expansion bag to move. At the same time, when the spring sliding rack moves, It will also drive the extrusion ring to move, squeezing the gas in the air pressure cylinder. The squeezed gas will enter the arc-shaped expansion bag through the telescopic tube, causing the arc-shaped expansion bag to be inflated for initial expansion until the inclined surface of the inclined surface block is separated from the pushing frame, and the arc-shaped expansion bag will contact the inner wall of the fire extinguisher valve, flexibly clamping the fire extinguisher valve, and the sliding block continues to move until the thread rolling wheel contacts the fire extinguisher valve to squeeze the fire extinguisher valve. The rotation of the thread rolling wheel drives the fire extinguisher valve to rotate, and the fire extinguisher valve is threaded. By flexibly clamping the fire extinguisher valve, the supporting force is evenly applied to reduce the influence of the center of gravity offset on the fire extinguisher valve during rotation, effectively preventing the irregular shape of the fire extinguisher valve from causing shaking when the fire extinguisher valve rotates, and ensuring the stability of its rotation process.

[0029] (2) When the push frame of the present invention moves toward the fire extinguisher valve, it also drives the second connecting rod to move, causing the second connecting rod to rotate, pushing the first piston plate to rise, squeezing the gas in the first air pressure frame, and the squeezed gas will enter the rotating ring through the first air supply pipe. At this time, the gas will be blocked by the spring bevel ring, so the gas will generate high pressure. When the fire extinguisher valve rotates, the supporting force of the arc expansion bag on the fire extinguisher valve will drive the arc expansion bag to rotate, thereby driving the rotating rod to rotate, causing the protrusion to rotate. When the protrusion rotates and contacts the spring bevel ring, it will squeeze the spring bevel ring down, allowing the spring bevel ring to separate from the bevel in the air blocking tube, thereby eliminating the obstruction to the gas. At this time, the high-pressure gas will enter the connecting groove through the air blocking tube, enter the air pressure cylinder through the connecting groove, and finally enter the arc-shaped expansion bag, allowing the arc-shaped expansion bag to expand again. When the protrusion is separated from the spring bevel ring, the resilience of the spring bevel ring will be released, allowing the spring bevel ring to return to its position and block the gas again. This reciprocating process will gradually increase the expansion amplitude of the arc-shaped expansion bag as the rolling wheel gradually squeezes the fire extinguisher valve, allowing the supporting force of the arc-shaped expansion bag to match the change in the extrusion pressure of the rolling wheel, effectively balancing the extrusion pressure of the rolling wheel, and effectively preventing the extrusion pressure of the rolling wheel from gradually increasing. The insufficient supporting force of the flexible clamping may easily cause deformation of the fire extinguisher valve.

[0030] (3) In the present invention, when the piston plate 1 rises, it will drive the connecting rod to rise, and the connecting rod will drive the piston plate 2 to rise, so that the piston plate 2 squeezes the gas in the air pressure frame 2. As the piston plate 2 continues to move, the gas pressure in the air pressure frame 2 will increase, and the high-pressure gas will push the spring push rod to rise, driving the Z-shaped blocking plate to rise, so that the Z-shaped blocking plate is close to the air blocking tube, so that the Z-shaped blocking plate blocks the air blocking tube. When the spring bevel ring descends, the high-pressure gas in the air supply pipe 1 can only enter the connecting groove through the groove on the Z-shaped blocking plate. When part of the gas in the air pressure frame 1 enters the connecting groove, the gas pressure in the air pressure frame 1 will weaken, and the air supply pipe 2 will be blocked. The gas in the air pressure frame 1 will enter the air pressure frame 1 through the air intake pipe and the air intake one-way valve. At this time, the gas pressure in the air supply pipe 2 is weakened, the pushing force on the spring push rod is reduced, and the resilience of the spring push rod is released, causing it to drop, thereby increasing the gap between the Z-shaped blocking plate and the fixed frame, allowing more gas to flow in, and effectively preventing the high-pressure gas in the air pressure frame 1 from quickly entering the arc-shaped expansion bag when the pressure is large, causing its initial expansion amplitude to be large. After the gas pressure in the arc-shaped expansion bag increases, the gas pressure in the air pressure frame 1 is weakened, and it is difficult for subsequent gas to enter the connecting groove again, affecting the expansion amplitude of the arc-shaped expansion bag to adapt to the extrusion force of the thread rolling wheel.

[0031] (4) When the Z-shaped blocking plate of the present invention rises, it will drive the fixed frame and the spring inclined surface block to rise, so that the inclined surface of the spring inclined surface block squeezes the spring blocking rod to move, so that the spring blocking rod enters the air outlet pipe, thereby blocking the air outlet pipe. As the spring inclined surface block continues to move, the spring inclined surface block will contact the fixed rod to block the spring inclined surface block, so that the spring inclined surface block stops moving. The fixed frame continues to move and squeezes the spring at the bottom of the spring inclined surface block, so that it accumulates rebound force. During the continuous movement of the fixed frame, it will also drive the spring clamping rod to rise. When the spring clamping rod moves to the notch position of the spring inclined surface block, since the spring clamping rod is in a stretched state before, the rebound force of the spring clamping rod will be released at this time, so that the spring clamping rod is inserted into the spring inclined surface block and fixed. At this time, the Z-shaped blocking plate It will block the air blocking pipe. When the thread processing on the fire extinguisher valve is completed, the electric telescopic rod will retract, separating the thread rolling wheel from the fire extinguisher valve. At this time, since the gas in the air pressure frame 2 is injected into the air pressure frame 1, the gas pressure in the air pressure frame 2 is lower, and the pushing force on the spring push rod is lower. Therefore, the Z-shaped blocking plate and the fixed frame will drop. Since the spring inclined surface block is stuck, the fixed frame will drop, which will drive the spring inclined surface block to drop and separate from the spring blocking rod. The rebound force of the spring blocking rod will be released, separating the spring blocking rod from the air outlet pipe. At this time, the high-pressure gas in the connecting groove will be discharged through the air outlet pipe, reducing the expansion amplitude of the arc-shaped expansion bag, effectively preventing the thread rolling wheel from separating from the fire extinguisher valve, and the arc-shaped expansion bag continues to exert a large extrusion pressure on the fire extinguisher valve, which can easily cause the fire extinguisher valve to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0033] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 3 It is a cross-sectional schematic diagram of a fixing block of the present invention;

[0036] Figure 4 It is a rear view schematic diagram of the fixing block of the present invention;

[0037] Figure 5 It is a cross-sectional schematic diagram of a fire extinguisher valve of the present invention;

[0038] Figure 6 It is a cross-sectional schematic diagram of an air pressure frame of the present invention;

[0039] Figure 7 It is a cross-sectional schematic diagram of the rotating ring of the present invention;

[0040] Figure 8 For the present invention Figure 7 A is an enlarged schematic diagram;

[0041] Fig. 9 It is a schematic diagram of the working process of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] In the figure: 1, shell; 11, base; 12, sliding block; 13, electric telescopic rod; 2, thread rolling mechanism; 21, thread rolling wheel; 22, motor; 23, fire extinguisher valve; 24, placement rack; 3, limit assembly; 31, fixed block; 32, rotating rod; 33, inclined block; 34, push frame; 35, spring sliding frame; 36, arc block; 361, connecting rod 1; 37, air pressure cylinder; 371, extrusion ring; 372, telescopic tube; 38, arc expansion bag; 4, incremental assembly; 41, air pressure frame 1; 42, piston plate 1; 421, connecting rod 2; 43. Connecting rod; 44. Air pipe 1; 45. Rotating ring; 451. Connecting groove; 46. Bump; 47. Air blocking pipe; 48. Spring ramp ring; 5. Blocking assembly; 51. Air pressure frame 2; 511. Air hole; 52. Piston plate 2; 53. Air pipe 2; 54. Air inlet pipe; 541. Air inlet non-return valve; 55. Spring push rod; 56. Z-shaped blocking plate; 57. Fixed frame; 571. Spring ramp block; 572. Spring clamping rod; 573. Inclined panel; 58. Air outlet pipe; 581. Spring blocking rod; 582. Fixed rod. DETAILED DESCRIPTION

[0044] 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.

[0045] For example, see Figure 1 - Figure 5 The present invention is a fire extinguisher valve component threading device, comprising a shell 1, a base 11 is fixedly connected to the inner wall of the shell 1, two sliding blocks 12 are slidably connected to the top of the base 11, two electric telescopic rods 13 are fixedly connected to the top of the base 11, and the output ends of the side walls of the two electric telescopic rods 13 are fixedly connected to the side walls of the two sliding blocks 12;

[0046] The thread rolling mechanism 2, the thread rolling mechanism 2 includes a fire extinguisher valve 23, a thread rolling wheel 21 for processing the thread of the fire extinguisher valve 23, a motor 22, a placement rack 24, and a limiting component 3 for restricting and clamping the fire extinguisher valve 23;

[0047] The number of the thread rolling wheels 21 and the motors 22 is two. The outer walls of the two thread rolling wheels 21 are rotatably connected to the inner walls of the two sliding blocks 12, and the side walls of the two sliding blocks 12 are fixedly connected to the side walls of the two motors 22;

[0048] Among them, the output ends of the side walls of the two motors 22 are fixedly connected to the side walls of the two thread rolling wheels 21. The bottom of the placement rack 24 is fixedly connected to the top of the housing 1. The outer wall of the fire extinguisher valve 23 is placed on the top of the placement rack 24. The staff opens the protective door on the housing 1, then places the fire extinguisher valve 23 to be processed on the placement rack 24, and then closes the protective door. The motor 22 is started to drive the thread rolling wheel 21 to rotate, and then the electric telescopic rod 13 is started to push the sliding block 12 to move towards the fire extinguisher valve 23, so that the thread rolling wheel 21 approaches the fire extinguisher valve 23. During the continuous movement of the sliding block 12 located in the front, it will drive the slope of the slope block 33 to contact the push frame 34, squeeze the push frame 34, so that the push frame 34 moves towards the placement rack 24, makes the push frame 34 contact the spring sliding frame 35, and pushes the spring sliding frame 35 to move, so that the spring sliding frame 35 accumulates resilience. When the spring sliding frame 35 moves, it will push the first link 361 to rotate, cause the first link 361 to fold, push the arc block 36 to move towards the inner wall direction of the fire extinguisher valve 23, drive the arc expansion bladder 38 to move. At the same time, when the spring sliding frame 35 moves, it will also drive the extrusion ring 371 to move, squeeze the gas in the air pressure cylinder 37, and the squeezed gas will enter the arc expansion bladder 38 through the telescopic tube 372, so that the arc expansion bladder 38 is inflated for preliminary expansion until the slope of the slope block 33 is separated from the push frame 34, and the arc expansion bladder 38 will contact the inner wall of the fire extinguisher valve 23, and perform flexible clamping on the fire extinguisher valve 23. The sliding block 12 continues to move until the thread rolling wheel 21 contacts the fire extinguisher valve 23, squeezes the fire extinguisher valve 23, drives the fire extinguisher valve 23 to rotate through the rotation of the thread rolling wheel 21, and processes the thread of the fire extinguisher valve 23. By flexibly clamping the fire extinguisher valve 23 and evenly applying a supporting force, the influence of the center of gravity deviation on the fire extinguisher valve 23 during rotation is reduced, effectively preventing the irregular shape of the fire extinguisher valve 23 from causing shaking during the rotation of the fire extinguisher valve 23, and ensuring the stability of its rotation process.

[0049] Example two, please refer to Figure 6 - Fig. 9The present invention is a fire extinguisher valve component threading device. On the basis of the first embodiment, the limit assembly 3 includes a fixed block 31 fixedly connected to the top of the base 11, a rotating rod 32 is rotatably connected to the inner wall of the fixed block 31, a bevel block 33 is fixedly connected to the back of the sliding block 12 located at the front, and a push frame 34 is slidably connected to the inner wall of the fixed block 31;

[0050] A spring sliding frame 35 is slidably connected to the outer wall of the rotating rod 32 , and an air pressure cylinder 37 is fixedly connected to the outer wall of the rotating rod 32 .

[0051] The limiting assembly 3 also includes three arc blocks 36 arranged on the outer wall of the rotating rod 32. The three arc blocks 36 are rotatably connected to two connecting rods 361 on one side close to the outer wall of the rotating rod 32, and the inner walls of the three connecting rods 361 on the left side are rotatably connected to the outer wall of the rotating rod 32.

[0052] The inner walls of the three connecting rods 361 on the right are all slidably connected to the outer wall of the spring sliding frame 35 , and the side wall of the fixed block 31 is provided with an increasing component 4 .

[0053] The limiting assembly 3 also includes an extrusion ring 371 slidably connected to the inner wall of the air pressure cylinder 37, the side wall of the extrusion ring 371 is fixedly connected to the side wall of the spring sliding frame 35, the inner wall of the air pressure cylinder 37 is connected with three telescopic tubes 372, and the three arc blocks 36 are fixedly connected to the arc expansion bags 38 on one side away from the outer wall of the rotating rod 32, and the outer walls of the three telescopic tubes 372 are connected with the inner walls of the three arc expansion bags 38.

[0054] The incremental component 4 includes a gas pressure frame 41 fixedly connected to the side wall of the fixed block 31, a piston plate 42 is slidably connected to the inner wall of the gas pressure frame 41, a connecting rod 421 is rotatably connected to the bottom of the piston plate 42, and the side wall of the push frame 34 is rotatably connected to the inner wall of the connecting rod 421;

[0055] Among them, the top of the air pressure frame 41 is connected with a gas pipe 44, and the bottom of the piston plate 42 is fixedly connected with a connecting rod 43. When the push frame 34 moves toward the fire extinguisher valve 23, it will also drive the connecting rod 421 to move, so that the connecting rod 421 rotates, pushes the piston plate 42 to rise, and squeezes the gas in the air pressure frame 41.

[0056] The incremental component 4 also includes a connecting groove 451 provided on the inner wall of the rotating rod 32, a rotating ring 45 is rotatably connected to the outer wall of the rotating rod 32, the inner wall of the rotating ring 45 is connected to the outer wall of the gas delivery pipe 44, two protrusions 46 are fixedly connected to the outer wall of the rotating rod 32, and a blocking pipe 47 is fixedly connected to the inner wall of the rotating ring 45;

[0057] Among them, a spring inclined plane ring 48 is slidably connected to the inner wall of the air blocking pipe 47, and a blocking assembly 5 is arranged on the side wall of the fixed block 31. The compressed gas will enter the rotating ring 45 through the first air delivery pipe 44. At this time, the gas will be blocked by the spring inclined plane ring 48. Therefore, high pressure will be generated in the gas. When the fire extinguisher valve 23 rotates, the supporting force of the arc-shaped expansion bladder 38 on the fire extinguisher valve 23 will drive the arc-shaped expansion bladder 38 to rotate, thereby driving the rotating rod 32 to rotate, causing the convex block 46 to rotate. When the convex block 46 rotates and contacts the spring inclined plane ring 48, the spring inclined plane ring 48 will be squeezed down, separating the spring inclined plane ring 48 from the inclined plane in the air blocking pipe 47 and canceling the block on the gas. At this time, the high-pressure gas will enter the communication groove 451 through the air blocking pipe 47, enter the air pressure cylinder 37 through the communication groove 451, and finally enter the arc-shaped expansion bladder 38, causing the arc-shaped expansion bladder 38 to expand again.

[0058] The blocking assembly 5 includes a second air pressure frame 51 fixedly connected to the side wall of the fixed block 31. A second piston plate 52 is slidably connected to the inner wall of the second air pressure frame 51. The bottom of the second piston plate 52 is fixedly connected to the top of the connecting rod 43. Three air holes 511 are opened on the outer wall of the second air pressure frame 51. The top of the second air pressure frame 51 is connected to a second air delivery pipe 53 in a penetrating manner;

[0059] Among them, an air inlet pipe 54 is connected to the inner wall of the second air delivery pipe 53 in a penetrating manner. An air inlet check valve 541 is slidably connected to the inner wall of the air inlet pipe 54. The outer wall of the air inlet pipe 54 is connected to the inner wall of the second air pressure frame 51 in a penetrating manner. When the first piston plate 42 rises, it will drive the connecting rod 43 to rise. The specific model of the air inlet check valve 541 is: ZG3 / 8. The connecting rod 43 drives the second piston plate 52 to rise, causing the second piston plate 52 to squeeze the gas in the second air pressure frame 51. As the second piston plate 52 continues to move, the gas pressure in the second air pressure frame 51 will increase.

[0060] The blocking assembly 5 further includes a spring push rod 55 slidably connected to the inner wall of the second air delivery pipe 53. The top of the spring push rod 55 is fixedly connected to a Z-shaped blocking plate 56. The outer wall of the Z-shaped blocking plate 56 is slidably connected to the inner wall of the rotating ring 45. The top of the Z-shaped blocking plate 56 is fixedly connected to a fixed frame 57;

[0061] Among them, a spring inclined plane block 571 is slidably connected to the inner wall of the fixed frame 57, and a spring clamping rod 572 is slidably connected to the inner wall of the fixed frame 57. The high-pressure gas will push the spring push rod 55 to rise, drive the Z-shaped blocking plate 56 to rise, make the Z-shaped blocking plate 56 approach the air blocking pipe 47, and cause the Z-shaped blocking plate 56 to block the air blocking pipe 47. When the spring inclined plane ring 48 descends, the high-pressure gas in the first air delivery pipe 44 can only enter the communication groove 451 through the groove on the Z-shaped blocking plate 56.

[0062] The blocking assembly 5 also includes an inclined plate 573 fixedly connected to the top of the gas delivery pipe 53, an outlet pipe 58 is fixedly connected to the inner wall of the rotating ring 45, and a spring blocking rod 581 is slidably connected to the side wall of the rotating ring 45;

[0063] Among them, a fixing rod 582 is fixedly connected to the side wall of the rotating ring 45, and the outer wall of the spring blocking rod 581 is slidably connected to the inner wall of the air outlet pipe 58. When the Z-shaped blocking plate 56 rises, it will drive the fixing frame 57 and the spring inclined surface block 571 to rise, so that the inclined surface of the spring inclined surface block 571 squeezes the spring blocking rod 581 to move, so that the spring blocking rod 581 enters the air outlet pipe 58, thereby blocking the air outlet pipe 58. As the spring inclined surface block 571 continues to move, the spring inclined surface block 571 will contact the fixing rod 582, blocking the spring inclined surface block 571 and stopping the spring inclined surface block 571 from moving. When the fixing frame 57 continues to move, it will squeeze the spring at the bottom of the spring inclined surface block 571, causing it to accumulate resilience. During the continuous movement of the fixing frame 57, the spring clamping rod 572 will also be driven to rise.

[0064] There is no limitation on the number of the above components, and relevant technicians in the field can freely set them according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0065] The method of using the fire extinguisher valve component threading device includes the following steps:

[0066] S1: Workpiece placement: The worker opens the protective door on the housing 1 and then places the fire extinguisher valve 23 to be processed on the placement rack 24;

[0067] S2: Start the device: Start the motor 22 to drive the thread rolling wheel 21 to rotate, and then start the electric telescopic rod 13 to push the sliding block 12 to move toward the fire extinguisher valve 23, so that the thread rolling wheel 21 is close to the fire extinguisher valve 23;

[0068] S3: Workpiece clamping: During the continuous movement of the sliding block 12 at the front, the inclined surface of the inclined surface block 33 will be driven to contact with the pushing frame 34, squeezing the pushing frame 34, so that the pushing frame 34 moves toward the placement frame 24, so that the pushing frame 34 contacts with the spring sliding frame 35, and pushes the spring sliding frame 35 to move.

[0069] A specific application of this embodiment is as follows: When the present invention is in use, the staff opens the protective door on the outer shell 1, then places the fire extinguisher valve 23 to be processed on the placement rack 24, and then closes the protective door. The motor 22 is started to drive the thread rolling wheel 21 to rotate, and then the electric telescopic rod 13 is started to push the sliding block 12 to move towards the fire extinguisher valve 23, so that the thread rolling wheel 21 approaches the fire extinguisher valve 23. During the continuous movement of the sliding block 12 located on the front side, it will drive the inclined surface of the inclined block 33 to contact the pushing frame 34, squeeze the pushing frame 34, and make the pushing frame 34 move towards the placement rack 24, so that the pushing frame 34 contacts the spring sliding frame 35, pushes the spring sliding frame 35 to move, and enables the spring sliding frame 35 to accumulate elastic force for returning. When the spring sliding frame 35 moves, it will push the first connecting rod 361 to rotate, causing the first connecting rod 361 to fold, and push the arc-shaped block 36 to move towards the inner wall direction of the fire extinguisher valve 23, driving the arc-shaped expansion bladder 38 to move. At the same time, when the spring sliding frame 35 moves, it will also drive the extrusion ring 371 to move, squeeze the gas in the air pressure cylinder 37, and the squeezed gas will enter the arc-shaped expansion bladder 38 through the telescopic tube 372, so that the arc-shaped expansion bladder 38 is inflated for preliminary expansion until the inclined surface of the inclined block 33 is separated from the pushing frame 34, and the arc-shaped expansion bladder 38 will contact the inner wall of the fire extinguisher valve 23, performing flexible clamping on the fire extinguisher valve 23. The sliding block 12 continues to move until the thread rolling wheel 21 contacts the fire extinguisher valve 23, squeezes the fire extinguisher valve 23, drives the fire extinguisher valve 23 to rotate through the rotation of the thread rolling wheel 21, and performs thread processing on the fire extinguisher valve 23. By flexibly clamping the fire extinguisher valve 23 and evenly applying a supporting force, the influence of the center of gravity offset on the fire extinguisher valve 23 during rotation is reduced, effectively preventing the irregular shape of the fire extinguisher valve 23 from causing shaking during the rotation of the fire extinguisher valve 23, and ensuring the stability of its rotation process;

[0070] Secondly, when the push frame 34 moves toward the fire extinguisher valve 23, it will also drive the second connecting rod 421 to move, so that the second connecting rod 421 rotates, pushes the piston plate 1 42 to rise, and squeezes the gas in the air pressure frame 1 41. The squeezed gas will enter the rotating ring 45 through the gas pipe 1 44. At this time, the gas will be blocked by the spring bevel ring 48, so the gas will generate high pressure. When the fire extinguisher valve 23 rotates, the supporting force of the arc expansion bag 38 on the fire extinguisher valve 23 will drive the arc expansion bag 38 to rotate, thereby driving the rotating rod 32 to rotate, so that the protrusion 46 rotates. When the protrusion 46 rotates and contacts the spring bevel ring 48, it will squeeze the spring bevel ring 48 to descend, so that the spring bevel ring 48 is separated from the bevel in the air blocking tube 47, and the gas is blocked. At this time, the high-pressure gas will enter the connecting groove 451 through the air blocking tube 47, enter the air pressure cylinder 37 through the connecting groove 451, and finally enter the arc-shaped expansion bag 38, so that the arc-shaped expansion bag 38 will expand again. When the protrusion 46 is separated from the spring bevel ring 48, the resilience of the spring bevel ring 48 will be released, so that the spring bevel ring 48 will return to its original position and block the gas again. In this way, the expansion amplitude of the arc-shaped expansion bag 38 will gradually increase during the process of the rolling wheel 21 gradually squeezing the fire extinguisher valve 23, so that the supporting force of the arc-shaped expansion bag 38 matches the squeezing force change of the rolling wheel 21, effectively balancing the squeezing force of the rolling wheel 21, and effectively preventing the squeezing force of the rolling wheel 21 from gradually increasing. The support force of the flexible clamping is insufficient, which is easy to cause the fire extinguisher valve 23 to deform.

[0071] Secondly, when the piston plate 1 42 rises, it will drive the connecting rod 43 to rise, and the connecting rod 43 will drive the piston plate 2 52 to rise, so that the piston plate 2 52 squeezes the gas in the air pressure frame 2 51. As the piston plate 2 52 continues to move, the gas pressure in the air pressure frame 2 51 will increase, and the high-pressure gas will push the spring push rod 55 to rise, driving the Z-shaped blocking plate 56 to rise, so that the Z-shaped blocking plate 56 is close to the blocking tube 47, so that the Z-shaped blocking plate 56 blocks the blocking tube 47. When the spring bevel ring 48 descends, the high-pressure gas in the gas supply pipe 1 44 can only enter the connecting groove 451 through the groove on the Z-shaped blocking plate 56. When part of the gas in the air pressure frame 1 41 enters the connecting groove 451, the gas pressure in the air pressure frame 1 41 will be weakened. The gas in the second gas delivery pipe 53 will enter the air pressure frame 1 41 through the air intake pipe 54 and the air intake non-return valve 541. At this time, the gas pressure in the second gas delivery pipe 53 is weakened, and the pushing force on the spring push rod 55 is reduced. The resilience of the spring push rod 55 will be released, causing it to drop, so that the gap between the Z-shaped blocking plate 56 and the fixed frame 57 is enlarged, allowing more gas to flow in, effectively preventing the high-pressure gas in the air pressure frame 1 41 from quickly entering the arc-shaped expansion bag 38 when the pressure is large, causing its initial expansion amplitude to be large. After the gas pressure in the arc-shaped expansion bag 38 increases, the gas pressure in the air pressure frame 1 41 is weakened, and it is difficult for the subsequent gas to enter the connecting groove 451 again, affecting the expansion amplitude of the arc-shaped expansion bag 38 to adapt to the extrusion force of the thread rolling wheel 21.

[0072] Secondly, when the Z-shaped blocking plate 56 rises, it will drive the fixed frame 57 and the spring inclined surface block 571 to rise, so that the inclined surface of the spring inclined surface block 571 squeezes the spring blocking rod 581 to move, so that the spring blocking rod 581 enters the outlet pipe 58, thereby blocking the outlet pipe 58. As the spring inclined surface block 571 continues to move, the spring inclined surface block 571 will contact the fixed rod 582, blocking the spring inclined surface block 571, so that the spring inclined surface block 571 stops moving, and the fixed frame 57 continues to move. The continued movement will squeeze the spring at the bottom of the spring inclined surface block 571, causing it to accumulate resilience. During the continuous movement of the fixed frame 57, the spring clamping rod 572 will also be driven to rise. When the spring clamping rod 572 moves to the notch position of the spring inclined surface block 571, since the spring clamping rod 572 was previously in a stretched state, the resilience of the spring clamping rod 572 will be released, causing the spring clamping rod 572 to be inserted into the spring inclined surface block 571 and fixed. At this time, the Z-shaped blocking plate 56 will block the choke tube 47. When the thread processing on the fire extinguisher valve 23 is completed, the electric telescopic rod 13 will retract to separate the thread rolling wheel 21 from the fire extinguisher valve 23. At this time, since the gas in the air pressure frame 51 is injected into the air pressure frame 1 41, the gas pressure in the air pressure frame 51 is low, and the driving force on the spring push rod 55 is low. Therefore, the Z-shaped blocking plate 56 and the fixed frame 57 will drop. Since the spring inclined surface block 571 is stuck, the fixed frame 57 drops, which will The spring inclined surface block 571 is driven to descend and separate from the spring blocking rod 581. The resilience of the spring blocking rod 581 is released, so that the spring blocking rod 581 is separated from the air outlet pipe 58. At this time, the high-pressure gas in the connecting groove 451 is discharged through the air outlet pipe 58, reducing the expansion amplitude of the arc-shaped expansion bag 38, effectively preventing the thread rolling wheel 21 from separating from the fire extinguisher valve 23. The arc-shaped expansion bag 38 continues to exert a large squeezing force on the fire extinguisher valve 23, which is easy to cause the fire extinguisher valve 23 to deform.

[0073] Among them, when the sliding block 12 drives the inclined block 33 to separate from the pushing frame 34, the rebound force of the spring sliding frame 35 will be released, causing the pushing frame 34 to return to its original position, thereby allowing the piston plate 1 42 and the piston plate 2 52 to descend, allowing the air hole 511 of the air pressure frame 2 51 to be connected with the top of the piston plate 2 52 again, and replenishing the gas in the air pressure frame 2 51. At the same time, due to the return of the piston plate 2 52, the gas driving force on the spring push rod 55 disappears, causing its rebound force to be released and return to its original position, driving the Z-shaped blocking plate 56 and the fixed frame 57 to return to their original positions, allowing the spring clamping rod 572 to contact the inclined surface of the inclined plate 573, allowing the spring clamping rod 572 to be squeezed, so that it is in a stretched state and separated from the spring inclined surface block 571. The rebound force of the spring inclined surface block 571 will be released, causing it to return to its original position.

[0074] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fire extinguisher valve component threading device, comprising a housing (1), a base (11) fixedly connected to the inner wall of the housing (1), two sliding blocks (12) slidably connected to the top of the base (11), two electric telescopic rods (13) fixedly connected to the top of the base (11), output ends at the side walls of the two electric telescopic rods (13) fixedly connected to the side walls of the two sliding blocks (12), characterized in that: Also includes: A thread rolling mechanism (2), the thread rolling mechanism (2) comprising a fire extinguisher valve (23), a thread rolling wheel (21) for processing threads of the fire extinguisher valve (23), a motor (22), a placement rack (24), and a limit assembly (3) for limiting and clamping the fire extinguisher valve (23); The number of the thread rolling wheels (21) and the number of the motors (22) are both two, the outer walls of the two thread rolling wheels (21) are rotatably connected to the inner walls of the two sliding blocks (12), and the side walls of the two sliding blocks (12) are fixedly connected to the side walls of the two motors (22); The output ends at the side walls of the two motors (22) are fixedly connected to the side walls of the two thread rolling wheels (21), the bottom of the placement rack (24) is fixedly connected to the top of the housing (1), and the outer wall of the fire extinguisher valve (23) is placed on the top of the placement rack (24).

2. The threading equipment for fire extinguisher valve parts according to claim 1, characterized in that: The limiting assembly (3) comprises a fixed block (31) fixedly connected to the top of the base (11); a rotating rod (32) is rotatably connected to the inner wall of the fixed block (31); a slope block (33) is fixedly connected to the back of the sliding block (12) located at the front; and a pushing frame (34) is slidably connected to the inner wall of the fixed block (31); A spring sliding frame (35) is slidably connected to the outer wall of the rotating rod (32), and a pneumatic cylinder (37) is fixedly connected to the outer wall of the rotating rod (32).

3. The threading device for fire extinguisher valve parts according to claim 2, characterized in that: The position limiting assembly (3) further comprises three arc blocks (36) arranged on the outer wall of the rotating rod (32); one side of the three arc blocks (36) close to the outer wall of the rotating rod (32) is rotatably connected to two connecting rods (361); the inner walls of the three connecting rods (361) on the left are rotatably connected to the outer wall of the rotating rod (32); The inner walls of the three connecting rods (361) located on the right side are all slidably connected to the outer wall of the spring sliding frame (35), and the side wall of the fixed block (31) is provided with an incremental component (4).

4. The threading device for fire extinguisher valve parts according to claim 3, characterized in that: The limiting assembly (3) further comprises an extrusion ring (371) slidably connected to the inner wall of the air pressure cylinder (37); the side wall of the extrusion ring (371) is fixedly connected to the side wall of the spring sliding frame (35); the inner wall of the air pressure cylinder (37) is connected through three telescopic tubes (372); the three arc blocks (36) are fixedly connected to an arc expansion bag (38) on one side away from the outer wall of the rotating rod (32); the outer walls of the three telescopic tubes (372) are connected through the inner walls of the three arc expansion bags (38).

5. The threading device for fire extinguisher valve parts according to claim 4, characterized in that: The incremental assembly (4) comprises a first air pressure frame (41) fixedly connected to the side wall of the fixed block (31); a first piston plate (42) is slidably connected to the inner wall of the first air pressure frame (41); a second connecting rod (421) is rotatably connected to the bottom of the first piston plate (42); and the side wall of the pushing frame (34) is rotatably connected to the inner wall of the second connecting rod (421); The top of the air pressure frame 1 (41) is connected to an air delivery pipe 1 (44), and the bottom of the piston plate 1 (42) is fixedly connected to a connecting rod (43).

6. The threading device for fire extinguisher valve parts according to claim 5, characterized in that: The incremental assembly (4) further comprises a connecting groove (451) formed on the inner wall of the rotating rod (32); a rotating ring (45) is rotatably connected to the outer wall of the rotating rod (32); the inner wall of the rotating ring (45) is through-connected to the outer wall of the gas delivery pipe (44); two protrusions (46) are fixedly connected to the outer wall of the rotating rod (32); and a blocking pipe (47) is fixedly connected to the inner wall of the rotating ring (45); A spring bevel ring (48) is slidably connected to the inner wall of the air blocking tube (47), and a blocking component (5) is provided on the side wall of the fixing block (31).

7. The threading device for fire extinguisher valve parts according to claim 6, characterized in that: The blocking assembly (5) comprises a second air pressure frame (51) fixedly connected to the side wall of the fixed block (31), a second piston plate (52) being slidably connected to the inner wall of the second air pressure frame (51), the bottom of the second piston plate (52) being fixedly connected to the top of the connecting rod (43), three air holes (511) being opened on the outer wall of the second air pressure frame (51), and a second air delivery pipe (53) being connected through the top of the second air pressure frame (51); The inner wall of the second air delivery pipe (53) is connected to an air intake pipe (54), the inner wall of the air intake pipe (54) is slidably connected to an air intake check valve (541), and the outer wall of the air intake pipe (54) is connected to the inner wall of the second air pressure frame (51).

8. The threading device for fire extinguisher valve parts according to claim 7, characterized in that: The blocking assembly (5) further comprises a spring push rod (55) slidably connected to the inner wall of the second gas delivery pipe (53); a Z-shaped blocking plate (56) is fixedly connected to the top of the spring push rod (55); the outer wall of the Z-shaped blocking plate (56) is slidably connected to the inner wall of the rotating ring (45); and a fixed frame (57) is fixedly connected to the top of the Z-shaped blocking plate (56); A spring inclined surface block (571) is slidably connected to the inner wall of the fixed frame (57), and a spring clamping rod (572) is slidably connected to the inner wall of the fixed frame (57).

9. The threading device for fire extinguisher valve parts according to claim 8, characterized in that: The blocking assembly (5) further comprises an inclined plate (573) fixedly connected to the top of the second gas delivery pipe (53); an air outlet pipe (58) is fixedly connected to the inner wall of the rotating ring (45); and a spring blocking rod (581) is slidably connected to the side wall of the rotating ring (45); A fixing rod (582) is fixedly connected to the side wall of the rotating ring (45), and the outer wall of the spring blocking rod (581) is slidably connected to the inner wall of the air outlet pipe (58).

10. A method for using a threading device for a fire extinguisher valve component, using the threading device for a fire extinguisher valve component as claimed in claim 9, characterized in that: The following steps are included: S (1): Workpiece placement: The worker opens the protective door on the housing (1), and then places the fire extinguisher valve (23) to be processed on the placement rack (24); S (2): starting the device: starting the motor (22) to drive the thread rolling wheel (21) to rotate, and then starting the electric telescopic rod (13) to push the sliding block (12) to move toward the fire extinguisher valve (23), so that the thread rolling wheel (21) is close to the fire extinguisher valve (23); S (3): Workpiece clamping: When the sliding block (12) at the front side continues to move, the inclined surface of the inclined surface block (33) is driven to contact with the push frame (34), thereby squeezing the push frame (34) and moving the push frame (34) toward the placement frame (24), so that the push frame (34) contacts with the spring sliding frame (35), thereby pushing the spring sliding frame (35) to move.

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