Constant force reliable high capacity hopper

Abstract

This invention discloses a constant-force, reliable, high-capacity ammunition tray, comprising: a tray body for mounting a tray cover, a feed wheel, a spindle, and a constant-torsion spring mechanism; the tray body includes: a feed groove, a torsion spring groove cover, an ejection port, and an ejection port baffle; the feed groove is a multi-layered spiral groove of the tray body and engages with the ejection port; the ejection port baffle is used to regulate the angle of ammunition entering the ejection port; the ejection port is used to adjust the attitude of the ammunition and restrict the ejection of dummy rounds; the tray cover, connected to the tray body, has a large rotating handle and engages with the spindle; the feed wheel has multiple notches for loading ammunition and meshes with the spindle, enabling the rotation switching of the notches and the feeding of ammunition during the rotation of the spindle; the spindle rotates under the drive of the large rotating handle and drives the feed wheel to rotate; the constant-torsion spring mechanism stores energy in the spindle, driving the spindle and feed wheel to rotate, causing the ammunition to move along the feed groove. This invention features a large ammunition capacity and rapid loading.

Description

Technical Field

[0001] This invention belongs to the field of ammunition feeding devices, specifically relating to a constant-force, reliable, large-capacity ammunition tray. Background Technology

[0002] With the development of modern technology, the complexity and interdisciplinary nature of warfare are becoming increasingly apparent, leading to the rise of various unmanned combat platforms. On existing small-caliber light weapon unmanned combat platforms, belt-fed ammunition inevitably impacts platform stability and serviceability, while also increasing the complexity of the weapon's automatic mechanism. Using chainless feeding presents problems such as insufficient magazine capacity, excessively large overall longitudinal dimensions of drum magazines, and insufficient installation space. Given these limitations in ammunition capacity and installation space, disc magazines offer a solution by providing a large capacity and a smaller longitudinal dimension after installation. However, existing disc magazine caliber series suffer from slow loading speeds and poor compatibility, thus necessitating a high-capacity, fast-loading, and easily replaceable disc magazine. Summary of the Invention

[0003] The purpose of this invention is to provide a large-capacity, fast-loading, and easily replaceable ammunition tray as an ammunition supply device for unmanned combat platforms or handheld weapons.

[0004] The technical solution to achieve the purpose of this invention is as follows:

[0005] A constant-force, reliable, high-capacity tumbler, comprising:

[0006] The cartridge tray body is used to install the cartridge tray cover, feeding wheel, spindle, and constant torsion spring mechanism for feeding ammunition. The cartridge tray body includes: a feeding groove, a torsion spring groove cover, a cartridge outlet, and a cartridge outlet baffle. The feeding groove is a multi-layered spiral groove of the cartridge tray body and connects to the cartridge outlet for inserting ammunition and dummy rounds. The cartridge outlet baffle is used to regulate the angle at which the ammunition enters the cartridge outlet, ensuring the ammunition enters the outlet. The cartridge outlet is used to adjust the attitude of the ammunition and restrict the ejection of dummy rounds.

[0007] The spring plate cover, connected to the spring plate body, is equipped with a large rotating handle that connects to the spindle and can drive the spindle to rotate;

[0008] The feeding wheel is equipped with multiple notches for loading ammunition into the feed groove inlet and engages with the spindle. It can switch the notches and move the ammunition during the spindle rotation, so that the ammunition is fed along the feed groove.

[0009] The spindle is rotatably connected to the tumbler body and is used to rotate under the action of the large rotating hand and drive the tumbler wheel to rotate. It can also disengage from the tumbler wheel under the action of pressing.

[0010] The constant torsion spring mechanism for feeding ammunition is used to store energy in the spindle. After the large-scale rotation is released, it drives the spindle and the feeding wheel to rotate, causing the ammunition to move along the feeding groove.

[0011] The significant advantages of this invention compared to existing technologies are:

[0012] (1) The present invention has a large ammunition capacity, providing the weapon with continuous combat capability;

[0013] (2) The present invention is easy and quick to load ammunition. It does not require pressing the ammunition from the outlet. After opening the ammunition tray cover, the ammunition wheel can be rotated to load ammunition from the loading port.

[0014] (3) The feeding torque provided by the feeding torsion spring of the present invention is constant, the feeding speed gradually increases, and the feeding is timely;

[0015] (4) This invention can be installed without changing the structure of the firearm, and is easy to install and disassemble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the constant force large capacity spring disc of the present invention;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the constant force large capacity spring disk of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the constant force large capacity tumbler after the tumbler cover is opened;

[0019] Figure 4 This is a schematic diagram of the constant force large capacity tumbler body structure of the present invention;

[0020] Figure 5 This is a cross-sectional view of the constant force large capacity ammunition disc of the present invention after it is filled with ammunition;

[0021] Figure 6 This is a top view of the constant force large capacity ammunition disc of the present invention after it is fully loaded with ammunition;

[0022] Figure 7 This is a schematic diagram of the constant force large capacity magazine of the present invention mounted on a gun;

[0023] Figure 8 This is a schematic diagram of the fixing plate structure of the constant force large capacity spring disc of the present invention;

[0024] Figure 9 This is a schematic diagram of the ejection port structure of the constant force large capacity cartridge disc of the present invention;

[0025] Figure 10 This is a schematic diagram of the constant force large capacity cartridge plate ejection port attitude adjustment of the present invention;

[0026] Figure 11 This is a schematic diagram of the constant force large capacity bullet disc dummy bullet deflector of the present invention;

[0027] Figure 12This is a schematic diagram of the dummy bullet stop claw structure of the constant force large capacity bullet disc of the present invention;

[0028] Figure 13 This is a schematic diagram of the spring tray cover structure of the constant force large capacity spring tray of the present invention;

[0029] Figure 14 This is a schematic diagram of the large-scale rotating hand structure of the constant force large-capacity tumbler of the present invention;

[0030] Figure 15 This is a schematic diagram of the feed wheel structure of the constant force large capacity feed disc of the present invention;

[0031] Figure 16 This is a schematic diagram of the lower feed wheel and end face ratchet structure of the constant force large capacity feed disc of the present invention;

[0032] Figure 17 This is a schematic diagram of the positioning of the feed wheel of the constant force large capacity feed disc of the present invention;

[0033] Figure 18 This is a schematic diagram of the spindle structure of the constant force large capacity spring disc of the present invention;

[0034] Figure 19 This is a schematic diagram of the small rotating hand structure of the constant force large capacity tumbler of the present invention;

[0035] Figure 20 This is a schematic diagram of the constant torsion spring mechanism for feeding the constant force large capacity tumbler of the present invention;

[0036] Figure 21 This is a schematic diagram of the structure of the constant force large capacity cartridge tray of the present invention after opening the cartridge tray cover for loading cartridges. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] Combination Figures 1 to 3 A constant-force, reliable, high-capacity cartridge tray includes a cartridge tray body 1, a cartridge tray cover 2, a cartridge-feeding wheel 3, a spindle 4, and a cartridge-feeding constant-torsion spring mechanism 5. The cartridge tray body 1 is the base of the cartridge tray, and the cartridge tray cover 2 is integrally connected to the cartridge tray body 1 via a hinge. The cartridge-feeding wheel 3, spindle 4, and cartridge-feeding constant-torsion spring mechanism 5 are mounted on the cartridge tray body 1, and the specific installation method is described below.

[0039] Combination Figure 4The cartridge tray 1 includes a cartridge feeding groove 101, a torsion spring groove cover 102, a cartridge tray hinge seat 103, a cartridge tray positioning protrusion 104, a torsion spring groove cover fixing screw 105, a latch seat 106, a latch 107, a cartridge outlet 108, a cartridge outlet baffle 109, and a cartridge tray cover positioning protrusion 110. The torsion spring groove cover 102 is fastened to the cartridge plate body 1 and is used to install the constant torsion spring mechanism 5 for feeding ammunition. The cartridge plate body hinge seat 103 is fixedly connected to the outside of the cartridge plate body and is used to connect the cartridge plate body 1 and the cartridge plate cover 2. The cartridge plate body positioning protrusion 104 is fixedly connected to the cartridge plate body. The torsion spring groove cover fixing screw 105 is used to fix the torsion spring groove cover 103 to the cartridge plate body 1. The latch seat 106 is fixedly connected to the outside of the cartridge plate body 1 and is hinged to the latch 107. The latch 107 is used to close the cartridge plate cover 2 on the cartridge plate body 1. The discharge port baffle 109 is fixedly connected to the cartridge plate body 1 and is used to adjust the angle when the ammunition 10101 enters the discharge port 108 so that the ammunition enters the discharge port 108. The cartridge plate cover positioning protrusion 104 is fixedly connected to the outside of the cartridge plate body 1.

[0040] Combination Figure 5 and Figure 6 The feeding groove 101 is a spiral groove (including a matching inner spiral groove and an outer spiral groove, corresponding to the projectile head and the projectile tail respectively) machined inside the cartridge case 1, used to hold ammunition 10101, and has three layers; after being filled with ammunition, there are a total of 103 rounds of ammunition 10101, with 4 rounds of ammunition 10101 in the discharge port 108, and the rest are spirally arranged in the feeding groove 101, with 33 rounds arranged in each layer. The last three rounds, 1010101, 1010102, and 1010103, are uncharged dummy rounds used to transmit the torque between the feeding wheel 3 and the last round of ammunition to be fired.

[0041] Combining 7 and Figure 8 The rear end of the magazine body 1 is connected to the magazine interface of the gun through the magazine outlet 108, and the front end is connected to the hole 1040101 on the magazine mounting base 10401 fixed on the gun through the magazine body positioning protrusion 104; the magazine mounting base 10401 is fixed to the Picatinny rail on the side of the gun through the hole 1040102 thereon.

[0042] Combination Figures 9 to 12The ejection port 108 is fixed to the bottom of the magazine body and includes a projectile attitude adjustment top block 10801, an ejection port base 10802, an inner baffle 10803, a dummy bullet stop pawl 10804, a stop pawl spring 10805, and a top block spring 10806. Because the magazine is horizontally mounted, the axis of the ammunition to be chambered at the ejection port 108 is at a certain angle to the bolt axis, and the cartridge case has a taper, resulting in a certain tilt angle between the uppermost ammunition in the ejection port 108 and the nearest ammunition to enter the ejection port 108 in the magazine body's feed groove 101.The inner baffle 10803 of the ejection port is located at the inlet of the ejection port base 10802. The bullet attitude adjustment top block 10801 is elongated and is pressed against the inner baffle 10803 by the top block spring 10806. When the ammunition 10101 passes through the bullet attitude adjustment top block 10801, it changes from a horizontal to an inclined position to compensate for the tilt angle of the ammunition 10101 in the ejection port 108 when the magazine is horizontally mounted on the gun. The ejection port base 10802 is used to accommodate four rounds of ammunition 10101. The inner baffle 10803 of the ejection port is located inside the ejection port base 10802 to allow the ammunition 10101 to enter the ejection port 108 in a single row. A top block spring mounting seat 1080301 and a stop pawl are fixedly connected to it. The spring mounting base 1080302 and the pawl mounting base 1080303 are included; the lower end of the spring attitude adjustment top block 10801 passes through the top block spring mounting base 1080301 and the pawl mounting base 1080303; the dummy bullet pawl 10804 is L-shaped, and its upper end is mounted on the pawl mounting base 1080303 via a pawl spring 10805, allowing it to slide relative to the pawl mounting base 1080303. The mounting base 1080303 is equipped with a pawl spring 10805. Under the action of the pawl spring 10805, one end of the lower end of the dummy bullet pawl 10804 presses against the spring attitude adjustment top block 10801, and the other end can pass through a hole in the inner baffle 10803 of the bullet outlet to block dummy bullets 1010101 and dummy bullets 1010102. A dummy bullet 1010103; the stop spring 10805 is fitted onto the stop spring mounting base 1080302; the top spring 10806 is fitted onto the top spring mounting base 1080301, supporting it between the top spring mounting base 1080301 and the bullet attitude adjustment top block 10801; when a bullet 10101 passes above the bullet attitude adjustment top block 10801, the bullet attitude adjustment top block 10801 moves downward, the top spring 10806 is compressed, and the dummy bullet stop 10804 is pressed against the bullet attitude adjustment top block 10801 by the stop spring 10805. The wedge-shaped inclined surface 1080401 at one end of the lower end of the dummy bullet stop 10804 cooperates with the wedge-shaped inclined surface 1080101 at the lower end of the bullet attitude adjustment top block 10801, preventing the other end from passing through. Ammunition 10101 can be normally transported within the outlet base 10802 after passing through the inner baffle 10803. When no ammunition 10101 passes above the attitude adjustment top block 10801, the top block spring 10806 rebounds, and the wedge-shaped inclined surface 1080101 on the lower end of the attitude adjustment top block 10801 moves upward and is offset from the wedge-shaped inclined surface 1080401 on the dummy bullet blocking claw 10804. The square cylindrical surface at the lower end of the attitude adjustment top block 10801 pushes the dummy bullet blocking claw 10804 out. The dummy bullet blocking claw 10804 passes through the inner baffle 10803 of the outlet, and the protruding surface 1080402 on the dummy bullet blocking claw 10804 and the outlet base 10802 together block the dummy bullet 1010103, ensuring that the dummy bullet cannot be output from the outlet 108.

[0043] Combination Figure 13 The disc cover 2 includes a disc cover base 201, a disc cover positioning piece 202, a disc cover hinge seat 203, and a large rotating handle 204. The disc cover positioning piece 202 is fixedly connected to the disc cover base 201 and is used to cooperate with the disc cover positioning protrusion 110 on the disc body 1 to prevent the disc cover 2 from shaking when closed; the disc cover hinge seat 203 is fixedly connected to the disc cover base 202 and is used to cooperate with the disc body hinge seat 103 on the disc body 1 to connect the disc body 1 and the disc cover 2.

[0044] Combination Figure 14 The large rotating handle 204 includes a handle 20401, a retaining ring 20402, and a handle base 20403. The handle 20401 is hinged to the handle base 20403 to transmit the spring torque. The handle base 20403 is engaged with the upper and lower surfaces of the spring disc cover base 201 via a retaining ring 20402, allowing the handle base 20403 to rotate relative to the spring disc cover base 201. The bottom of the handle base 20403 has locking teeth for engaging with the small rotating handle 401 of the spindle 4, rotating the handle 20401 to drive the spindle 4 to rotate.

[0045] Combination Figures 15 to 17 The feed wheel 3 is located within the annular cavity of the spiral groove, specifically the annular cavity between the inner and outer spiral grooves. It includes an upper feed wheel 301, a lower feed wheel 302, an end-face ratchet 303, feed claws 304, and a feed wheel rivet 305. Multiple feed claws 304 are circumferentially fixed to the lower end of the upper feed wheel 301. These feed claws 304 are positioned between adjacent ammunition 10101 in the feed groove 101, and are used to move the ammunition 10101 within the feed groove 101 to the discharge port 108. The lower feed wheel 302 has an end-face ratchet 303 at its lower center. The feed wheel rivet 305 connects the upper feed wheel 301 and the lower feed wheel 302. The feed wheel 3 is mounted on the cartridge tray body 1 and is radially positioned by fitting onto the open shaft 404. It is axially positioned by contact between the upper end face 30201 of the lower feed wheel 302 and the lower end face 40105 of the small rotating handle 401. The upper end face of the upper feed wheel 301 has multiple notches 30101 circumferentially provided with the shape of the ammunition for loading and inserting the ammunition 10101.

[0046] Combination Figure 17 and Figure 18The spindle 4 is fitted into a hole at the bottom of the spring disc body 1 and can rotate relative to it. It includes a small handle 401, a pawl 402, a pawl spring 403, and an open shaft 404. The two ends of the pawl 402 pass through the open shaft 404. The pawl spring 403 is supported in the pawl 402 and the open shaft 404 and exerts an upward force on the pawl 402. The pawl 402 is pressed against the end face ratchet 303 by the pawl spring 403, and the spring force is transmitted in cooperation with it. The open shaft 404 is connected to the small handle 401 by a left-hand thread.

[0047] Combination Figure 19 The small rotating handle 401 includes a push rod 40101, a push rod spring 40102, a positioning washer 40103, and a small rotating handle seat 40104. The small rotating handle seat 40104 is threadedly connected to the top of the open shaft 404. The push rod 40101 is fixedly connected to the positioning washer 40103 and is fitted inside the small rotating handle 40104 to release the engagement between the pawl 402 and the end face ratchet 303. The push rod spring 40102 is located between the push rod 40101 and the small rotating handle 40104, exerting an upward force on the push rod 40101. When the push rod 40101 is pressed down, the positioning washer 40103 pushes the pawl 402 down. When you want to take out the loaded ammunition, press down the push rod 40101 to push the pawl 402 down, releasing the pawl 402 and the ratchet 303. The engagement between the feed wheel and the open shaft 404 through the ratchet and pawl is released, allowing it to rotate counterclockwise without tightening the constant torsion spring 502. When the push rod 40101 is released, the push rod 40101 returns to its original position under the action of the push rod spring 40102. The top rod spring 40102 is sleeved on the top rod 40101 and supported between the top rod 40101 and the small rotating handle seat 40104. It exerts an upward force on the top rod 40101 to keep the positioning washer 40103 in contact with the rotating handle seat 40105, ensuring the initial position of the top rod 40101. The small rotating handle seat 40104 is symmetrically provided with two handles for engaging with the bottom teeth of the rotating handle seat 20403 of the large rotating handle 204.

[0048] Combination Figure 20 The constant torsion spring mechanism 5 for feeding ammunition includes a storage drum sleeve 501 and a constant torsion spring 502. One end of the constant torsion spring is tightly wound onto the storage drum sleeve 501, and the other end is engaged with the opening of the open shaft 404. The storage drum sleeve 501 is fitted inside the ammunition disc body 1.

[0049] The operation process of the constant force large capacity spring plate described in this invention is as follows:

[0050] Combination Figure 21After opening the magazine cover 2, rotate the feed wheel 3 clockwise while loading ammunition 10101 into the feed groove 101 through the notch 30101 of the upper feed wheel 301 where the positioning protrusion 110 of the magazine cover is located. At this time, the end face ratchet 303 compresses the pawl 402 and pawl spring 403 downward. After each pawl tooth 30301, the pawl spring 403 extends, causing the pawl 402 to move upward into the tooth groove and be blocked by the tooth vertical surface of the ratchet tooth 30301. Position the next notch 30101 to the feed groove 101 entrance and continue loading ammunition 10101 until the last dummy bullet 1010101 is loaded into the feed groove 101, and the loading is completed.

[0051] After loading, close the magazine cover 2, fasten the buckle 107, and rotate the large handle 204 counterclockwise to drive the small handle 401 to rotate. At this time, the open shaft 404 drives the constant torsion spring 502 to wrap around it to store the energy of the bullet delivery. On the other hand, the open shaft 404 drives the pawl 402 to rotate. The pawl 403 moves downward under the action of the helical surface of the end face ratchet 303, compressing the pawl spring 403. When the pawl 402 passes the ratchet 30301, the pawl spring 403 stretches and moves upward into the tooth groove, and is blocked by the vertical surface of the ratchet 30301. After releasing the large rotary handle 204, the storage drum sleeve 501 rotates, causing the open shaft 404 and pawl 402 to rotate clockwise. The pawl 402, through the toothed vertical surface of the end face ratchet 303, causes the feed wheel 3 to rotate clockwise. The feed pawl 304 moves the ammunition 10101, which moves sequentially towards the pre-loading position under the action of the feed groove 101, the discharge port baffle 109, and the discharge port 108, until the bottom ammunition 10101 is blocked and pressed by the left bend 1080201 at the bottom of the discharge port base 10802. The pawl 402 and the open shaft 404 cannot rotate clockwise to prevent the constant torsion spring 502 from releasing energy. Thus, rotating the rotary handle 20401 a total of 3.5-4 turns ensures sufficient feed energy.

[0052] After the bolt pusher lug pushes the ammunition 10101, which is in the pre-loading position, out of the left bend 1080201 of the ejection port 108, the feed constant torsion spring mechanism 5 drives the spindle 4 and the feed wheel 3 to rotate clockwise, causing the ammunition 10101 to move along the feed groove 101 until the next round of ammunition 10101 is against the lower surface of the bolt carrier. After firing, the bolt retracts, returning to the ejection port 108, and feeds again until the next round of ammunition 10101 is in the pre-loading position. When the last round of ammunition 10101 is fired, the bullet attitude adjustment top block 10801 pops up, causing the dummy bullet stop pawl 10804 to protrude. After the bolt pushes the last round of ammunition 10101 into the chamber, the last three dummy bullets 1010101, dummy bullets 1010102, and dummy bullets 1010103 are blocked. After pulling the trigger again, the bolt pushes the bullet into the chamber without firing.

Claims

1. A constant-force, reliable, high-capacity spring tray, characterized in that, include: The cartridge tray body is used to install the cartridge tray cover, feeding wheel, spindle, and constant torsion spring mechanism for feeding ammunition. The cartridge tray body includes: a feeding groove, a torsion spring groove cover, a cartridge outlet, and a cartridge outlet baffle. The feeding groove is a multi-layered spiral groove of the cartridge tray body and connects to the cartridge outlet for inserting ammunition and dummy rounds. The cartridge outlet baffle is used to regulate the angle at which the ammunition enters the cartridge outlet, ensuring the ammunition enters the outlet. The cartridge outlet is used to adjust the attitude of the ammunition and restrict the ejection of dummy rounds. The spring plate cover, connected to the spring plate body, is equipped with a large rotating handle that connects to the spindle and can drive the spindle to rotate; The feeding wheel is equipped with multiple notches for loading ammunition into the feed groove inlet and engages with the spindle. It can switch the notches and move the ammunition during the spindle rotation, so that the ammunition is fed along the feed groove. The spindle is rotatably connected to the tumbler body and is used to rotate under the action of the large rotating hand and drive the tumbler wheel to rotate. It can also disengage from the tumbler wheel under the action of pressing. The constant torsion spring mechanism for feeding ammunition is used to store energy in the spindle. After the large-scale rotation is released, it drives the spindle and the feeding wheel to rotate, causing the ammunition to move along the feeding groove. The projectile outlet includes a projectile attitude adjustment top block, a projectile outlet base, a projectile outlet inner baffle, a dummy projectile blocking claw, a blocking claw spring, and a top block spring; The inner baffle of the ejection port is located at the inlet of the ejection port base. The projectile attitude adjustment top block is pressed against the inner baffle of the ejection port by a top block spring to adjust the attitude of the ammunition. The inner baffle of the ejection port is located within the ejection port base to allow the ammunition to enter the ejection port in a single row. A top block spring mounting seat, a pawl spring mounting seat, and a pawl mounting seat are fixedly connected to the inner baffle of the ejection port. The lower end of the projectile attitude adjustment top block passes through the top block spring mounting seat and the pawl mounting seat. The upper end of the dummy projectile pawl is mounted on the pawl mounting seat, and a pawl spring is provided on the pawl spring mounting seat. The wedge-shaped inclined surface at one end of the dummy bullet blocking claw engages with the wedge-shaped inclined surface at the lower end of the bullet attitude adjustment top block, while the other end of the dummy bullet blocking claw is located inside the baffle hole of the bullet outlet. The top block spring is sleeved on the top block spring mounting seat and supported between the top block spring mounting seat and the bullet attitude adjustment top block. When ammunition passes above the bullet attitude adjustment top block, the top block spring is compressed, and the dummy bullet blocking claw is pressed against the bullet attitude adjustment top block by the blocking claw spring. When no ammunition passes above the bullet attitude adjustment top block, the top block spring rebounds, and the bullet attitude adjustment top block pushes the dummy bullet blocking claw out, which together with the bullet outlet base blocks the dummy bullet.

2. The constant force reliable large capacity spring tray according to claim 1, characterized in that, The feed wheel includes an upper feed wheel, a lower feed wheel, and an end-face ratchet; the upper feed wheel and the lower feed wheel are connected; multiple feed claws are circumferentially fixed to the lower end of the upper feed wheel, and the feed claws are arranged between adjacent ammunition in the feed groove to move the ammunition within the feed groove to the discharge port; the lower feed wheel has an end-face ratchet at its lower center, which meshes with the spindle.

3. The constant force reliable large capacity spring tray according to claim 1, characterized in that, The spindle includes a small rotating handle, a pawl, a pawl spring, and an open shaft; the two ends of the pawl pass through the open shaft, and the pawl spring is supported inside the pawl and the open shaft, exerting an upward force on the pawl; the pawl engages with the feed wheel under the action of the pawl spring, and the small rotating handle is fixed on the open shaft, which can press down on the pawl under pressure to release the engagement between the pawl and the feed wheel, and can reset itself when the pressing action is removed; the small rotating handle cooperates with the large rotating handle.

4. The constant force reliable large capacity spring tray according to claim 3, characterized in that, The small rotating handle includes a push rod, a push rod spring, a positioning washer, and a small rotating handle seat; the small rotating handle seat is connected to the top of the open shaft, the push rod is fixed to the positioning washer and is fitted inside the small rotating handle seat, the push rod spring is set between the push rod and the small rotating handle seat, and has an upward force on the push rod; the small rotating handle seat is symmetrically provided with two rotating handles for engaging the large rotating handle.

5. The constant force reliable large capacity spring tray according to claim 4, characterized in that, The feed mechanism includes a storage drum sleeve and a constant torsion spring; one end of the constant torsion spring is wound tightly around the storage drum sleeve, and the other end is engaged with the opening of the open shaft.

6. The constant force reliable large capacity spring tray according to claim 1, characterized in that, The large rotating hand includes a rotating handle, a fixed retaining ring, and a rotating hand base; the rotating handle is hinged to the rotating hand base, and the rotating hand base is engaged with the upper and lower surfaces of the spring disc cover base through two fixed retaining rings, so that the rotating hand base can rotate relative to the spring disc cover base; the bottom of the rotating hand base is provided with locking teeth for engaging with the spindle.

7. The constant force reliable large capacity spring tray according to claim 1, characterized in that, The disc cover is hinged to the disc body and fastened with a snap fastener.

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