Iron transmission rotating disc of lock and lock

Abstract

This utility model provides an iron transmission turntable for a lock, comprising: a transmission rod seat and a linkage turntable. One end of the transmission rod seat is recessed to form a receiving groove. The bottom of the receiving groove has a linkage through groove that is linked with the lock cylinder. The lock cylinder passes through the linkage through groove and extends into the receiving groove and is fixed to the transmission rod seat. The opening of the receiving groove extends outward to form a fixing part. The middle of the linkage turntable has a fixing notch. The fixing part is fixed to the opening of the fixing notch, so that the transmission rod seat is fixed to one end of the linkage turntable. One side of the linkage turntable extends outward to form a locking pin fixing groove. The two side walls of the locking pin fixing groove have locking pin through holes. The locking pin is received in the locking pin through holes. The diameter of the locking pin through holes is smaller than the diameter of the two ends of the locking pin return spring. The locking pin return spring is sleeved on the locking pin and clamped between the two locking pin through holes. By adopting the above solution, iron sheet metal is used instead of aluminum-zinc alloy, which significantly reduces the cost of the transmission turntable and improves the strength and stability of the parts.

Description

Technical Field

[0001] This utility model belongs to the technical field of lock components, and specifically relates to an iron transmission turntable and lock. Background Technology

[0002] Locks are devices used to lock openable devices to prevent others from opening them. Most door locks nowadays are electronic locks, which mainly control the opening and closing of the lock through a clutch. The lock mainly includes: a door handle, a lock housing, and a clutch disc, a transmission disc, a clutch pin, and an electric clutch control module located in the lock housing. A handle shaft is located on one side of the clutch disc, which passes through the lock housing and extends into the door handle for fixation. The electric clutch control module can control whether the clutch disc and the transmission disc are engaged through the clutch pin, thereby locking or unlocking the openable device.

[0003] Because the aforementioned transmission turntable needs to cooperate with components such as the lock cylinder, clutch pin, clutch turntable, and lock housing, the thickness of the transmission turntable will be increased or decreased according to the tensile strength requirements of different components. Therefore, its material needs to be an aluminum-zinc alloy that is easy to die-cast into different thicknesses. However, compared with iron, aluminum-zinc alloy has lower tensile strength and is more expensive than iron, which increases the cost of the lock and is not conducive to its promotion. If iron is used, the problems of tensile strength and material price can be solved, but iron is not convenient for die casting. This problem urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The main purpose of this utility model is to provide an iron transmission turntable for a lock, wherein a fixing part is formed by extending outward from the opening of the receiving groove, and a fixing notch is provided in the middle of the linkage turntable. The fixing part is fixed at the opening of the fixing notch, so that the transmission rod seat is fixed to one end of the linkage turntable. A locking pin fixing groove is formed by extending outward from one side of the linkage turntable. Locking pin through holes are provided on both sides of the groove wall of the locking pin fixing groove. The locking pin is received in the locking pin through holes. The diameter of the locking pin through holes is smaller than the diameter of the two ends of the locking pin return spring. The locking pin return spring is sleeved on the locking pin and clamped between the two locking pin through holes. A locking notch is provided on the side of the clutch turntable near the locking pin through holes. After driving the locking pin to compress the locking pin return spring, the locking pin passes through the locking pin through holes and extends into the locking notch to lock, so that the linkage turntable and the clutch turntable remain locked. The locking pin return spring resets and drives the locking pin to retract from the locking notch into the locking pin through holes, so that the linkage turntable and the clutch turntable are unlocked. By adopting the above solution, the material of the lock's transmission turntable is changed from aluminum-zinc alloy to sheet metal. To overcome the disadvantage that iron cannot be integrally die-cast, the iron transmission turntable of the lock is decomposed into a transmission rod seat and a linkage turntable, and then the transmission rod seat and linkage turntable are fixed together. Moreover, the traditional aluminum-zinc alloy transmission turntable is relatively thick at the location of the lock pin fixing hole. If the same structure is used in the iron transmission turntable, cracks will be generated in the above location during the casting process, which will affect the stability of the structure. In this utility model, the above structure is changed to a lock pin fixing groove, which reduces the thickness at the above location while achieving the same tensile strength. Furthermore, the original solid aluminum-zinc alloy transmission rod seat is changed to a hollow one with a receiving groove, which also achieves the same tensile strength. At the same time, the entire structure is made of sheet metal, which reduces the cost of the transmission turntable and also reduces the manufacturing difficulty of the transmission turntable, significantly reducing the cost of rotating the turntable, improving the strength and stability of the transmission turntable, and facilitating the promotion of the lock.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A lock's iron transmission turntable includes: a transmission rod seat and a linkage turntable. One end of the transmission rod seat is recessed inward to form a receiving groove. The bottom of the receiving groove is provided with a linkage through groove that is linked with the lock cylinder of the lock. After the lock cylinder passes through the linkage through groove, it extends into the receiving groove and is fixed to the transmission rod seat.

[0007] The receiving groove extends outward to form a fixing part, and the middle part of the linkage turntable is provided with a fixing notch. The fixing part is fixed to the opening of the fixing notch, so that the transmission rod seat is fixed to one end of the linkage turntable.

[0008] The linkage turntable extends outward on one side to form a locking pin fixing groove. The two sides of the locking pin fixing groove are provided with locking pin through holes. The locking pin is accommodated in the locking pin through holes. The diameter of the locking pin through holes is smaller than the diameter of the two ends of the locking pin return spring. The locking pin return spring is sleeved on the locking pin and clamped between the two locking pin through holes. The clutch turntable is provided with a snap-fit ​​notch on the side near the locking pin through holes.

[0009] After the locking pin is compressed by the locking pin return spring, the locking pin passes through the locking pin hole and extends into the locking notch to engage, keeping the linkage turntable and clutch turntable locked. The locking pin return spring then resets and drives the locking pin to retract from the locking notch back into the locking pin hole, thus unlocking the linkage turntable and clutch turntable.

[0010] As a preferred embodiment of the iron transmission turntable of the lock, the fixing part extends outward to form multiple fixing protrusions, and the fixing notch is recessed inward to form multiple fixing grooves. After the fixing protrusions are embedded into the corresponding fixing grooves, the fixing part is welded to the fixing notch.

[0011] In a preferred embodiment of the iron transmission turntable of the lock, the inner side of the opening of the receiving groove is recessed to form a first guide ring groove; the clutch turntable includes: a turntable body and a handle shaft, one end of the handle shaft passes through the turntable body and extends toward the first guide ring groove to form a guide protrusion, the guide protrusion extends into the first guide ring groove and abuts against the first guide ring groove, and is used to support and guide the rotation of the iron transmission turntable of the lock.

[0012] As a preferred embodiment of the iron transmission turntable of the lock, the transmission rod seat has a wire outlet groove on one side, which is used to connect the power line.

[0013] As a preferred embodiment of the iron transmission turntable of the lock, the transmission rod seat is provided with fixing holes on both sides. After the lock cylinder passes through the linkage through groove and extends into the receiving groove, the fixing screw passes through the fixing through hole and extends into the lock cylinder for fixing.

[0014] As a preferred embodiment of the iron transmission turntable of the lock, the openings on both sides of the locking pin fixing groove extend upward to form a first limiting protrusion. The first limiting protrusion abuts against both sides of the locking pin return spring to limit the wobbling of the locking pin return spring.

[0015] This utility model also provides a lock, including: a lock housing, which further includes an iron transmission turntable of the lock as described in any of the above claims, the iron transmission turntable of the lock being housed within the lock housing.

[0016] As a preferred embodiment of the lock, the fixing part is provided with a second guide ring groove on the side facing the lock housing, and the lock housing extends towards the second guide ring groove to form an abutting guide protrusion. The abutting guide protrusion is embedded in the second guide ring groove and can slide along the direction of the second guide ring groove.

[0017] As a preferred embodiment of the lock, the lock further includes: a return coil spring, which is sandwiched between the lock housing and the clutch disc; a limiting screw passes through one side of the clutch disc and extends outward to form a first limiting protrusion, which abuts against one end of the return coil spring; the other side of the clutch disc extends downward to form a second limiting protrusion, which abuts against the other end of the return coil spring; the return coil spring resets the rotation of the clutch disc through the first and second limiting protrusions.

[0018] As a preferred embodiment of the lock, one side of the linkage turntable is provided with a limiting groove at the position of the corresponding limiting screw. The limiting screw abuts against the limiting groove to initially reset the rotation of the linkage turntable. The two sides of the linkage turntable extend toward the two ends of the reset coil spring to form second limiting protrusions. The two second limiting protrusions abut against the two ends of the corresponding reset coil spring. The reset coil spring further resets the rotation of the linkage turntable through the second limiting protrusions.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides an iron transmission turntable for a lock, comprising: a transmission rod seat and a linkage turntable. One end of the transmission rod seat is recessed inward to form a receiving groove. The bottom of the receiving groove has a linkage through groove that is linked with the lock cylinder of the lock. The lock cylinder passes through the linkage through groove and extends into the receiving groove and is fixed to the transmission rod seat. The opening of the receiving groove extends outward to form a fixing part. The middle of the linkage turntable has a fixing notch. The fixing part is fixed to the opening of the fixing notch, so that the transmission rod seat is fixed to one end of the linkage turntable. One side of the linkage turntable extends outward to form a locking pin fixing groove, and the locking pin is fixed. The groove has locking pin holes on both sides, and the locking pin is accommodated in the locking pin holes. The diameter of the locking pin holes is smaller than the diameter of the two ends of the locking pin return spring. The locking pin return spring is sleeved on the locking pin and clamped between the two locking pin holes. The clutch disc has a locking notch on the side near the locking pin holes. After the locking pin is driven to compress the locking pin return spring, the locking pin passes through the locking pin holes and extends into the locking notch to lock, so that the linkage disc and the clutch disc remain locked. The locking pin return spring resets and drives the locking pin to retract from the locking notch back into the locking pin holes, so that the linkage disc and the clutch disc are unlocked. By adopting the above solution, the material of the lock's transmission turntable is changed from aluminum-zinc alloy to sheet metal. To overcome the disadvantage that iron cannot be integrally die-cast, the iron transmission turntable of the lock is decomposed into a transmission rod seat and a linkage turntable, and then the transmission rod seat and linkage turntable are fixed together. Moreover, the traditional aluminum-zinc alloy transmission turntable is relatively thick at the location of the lock pin fixing hole. If the same structure is used in the iron transmission turntable, cracks will be generated in the above location during the casting process, which will affect the stability of the structure. In this utility model, the above structure is changed to a lock pin fixing groove, which reduces the thickness at the above location while achieving the same tensile strength. Furthermore, the original solid aluminum-zinc alloy transmission rod seat is changed to a hollow one with a receiving groove, which also achieves the same tensile strength. At the same time, the entire structure is made of sheet metal, which reduces the cost of the transmission turntable and also reduces the manufacturing difficulty of the transmission turntable, significantly reducing the cost of rotating the turntable, improving the strength and stability of the transmission turntable, and facilitating the promotion of the lock. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and all of them fall within the protection scope of this utility model.

[0022] Figure 1 This is a structural schematic diagram of the lock shown in this utility model;

[0023] Figure 2 yes Figure 1 A sectional view of the lock shown;

[0024] Figure 3 yes Figure 1 An exploded view of the lock shown.

[0025] Figure 4 yes Figure 1 The diagram shows a structural representation of the lock with the lock housing removed.

[0026] Figure 5 yes Figure 3 A schematic diagram of the iron transmission turntable of the lock shown at one angle;

[0027] Figure 6 yes Figure 5 A schematic diagram of the iron transmission turntable of the lock shown from another angle;

[0028] Figure 7 yes Figure 5 An exploded view of the iron transmission turntable of the lock shown;

[0029] Figure 8 yes Figure 3 A schematic diagram of the clutch dial of the lock shown;

[0030] Figure 9 yes Figure 3 The diagram shows the structural structure of the lock housing.

[0031] Figure 10 This is a static displacement force diagram of the transmission turntable of the lock shown in this utility model under simulated door opening rotation force analysis;

[0032] Figure 11 This is a static strain force diagram of the transmission turntable of the lock shown in this utility model under simulated door opening rotation force analysis;

[0033] Figure 12 This is a stress diagram of the transmission turntable of the lock shown in this utility model under the stress analysis of simulating the rotation of a door opening mechanism. Detailed Implementation

[0034] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a rotatable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Locks are devices used to lock openable devices to prevent others from opening them. Most door locks nowadays are electronic locks, which mainly control the opening and closing of the lock through a clutch. The lock mainly includes: a door handle, a lock housing, and a clutch disc, a transmission disc, a clutch pin, and an electric clutch control module located in the lock housing. A handle shaft is located on one side of the clutch disc, which passes through the lock housing and extends into the door handle for fixation. The electric clutch control module can control whether the clutch disc and the transmission disc are engaged through the clutch pin, thereby locking or unlocking the openable device.

[0037] Because the aforementioned transmission turntable needs to cooperate with components such as the lock cylinder, clutch pin, clutch turntable, and lock housing, the thickness of the transmission turntable will be increased or decreased according to the tensile strength requirements of different components. Therefore, its material needs to be an aluminum-zinc alloy that is easy to die-cast into different thicknesses. However, compared with iron, aluminum-zinc alloy has lower tensile strength and is more expensive than iron, which increases the cost of the lock and is not conducive to its promotion. If iron is used, the problems of tensile strength and material price can be solved, but iron is not convenient for die casting. This problem urgently needs to be solved by those skilled in the art.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment provides a lock, including: a lock housing 10, and an iron transmission turntable 20 of the lock housed in the lock housing 10. The iron transmission turntable 20 of the lock includes: a transmission rod seat 21 and a linkage turntable 22. One end of the transmission rod seat 21 is recessed inward to form a receiving groove 211. The bottom of the receiving groove 211 is provided with a linkage through groove 2111 that is linked with the lock cylinder. The lock cylinder passes through the linkage through groove 2111 and extends into the receiving groove 211 and is fixed to the transmission rod seat 21.

[0039] The receiving groove 211 extends outward from the opening to form a fixing part 2112, and the linkage turntable 22 has a fixing notch 221 in the middle. The fixing part 2112 is fixed to the opening of the fixing notch 221, so that the transmission rod seat 21 is fixed to one end of the linkage turntable 22.

[0040] The linkage turntable 22 extends outward on one side to form a locking pin fixing groove 222. The two sides of the locking pin fixing groove 222 are provided with locking pin through holes 2221. The locking pin 30 is accommodated in the locking pin through holes 2221. The diameter of the locking pin through holes 2221 is smaller than the diameter of the two ends of the locking pin return spring 40. The locking pin return spring 40 is sleeved on the locking pin 30 and clamped between the two locking pin through holes 2221. The clutch turntable 50 is provided with a snap-fit ​​notch 51 on the side near the locking pin through holes 2221.

[0041] After the locking pin 30 is compressed by the locking pin return spring 40, the locking pin 30 passes through the locking pin through hole 2221 and extends into the locking notch 51 to engage, so that the linkage turntable 22 and the clutch turntable 50 remain locked. The locking pin return spring 40 resets and drives the locking pin 30 to retract from the locking notch 51 into the locking pin through hole 2221, so that the linkage turntable 22 and the clutch turntable 50 are unlocked.

[0042] In this invention, the material of the transmission turntable of the lock is changed from aluminum-zinc alloy to sheet metal. To overcome the disadvantage that iron cannot be integrally die-cast, the iron transmission turntable 20 of the lock is decomposed into the transmission rod seat 21 and the linkage turntable 22. Then, the transmission rod seat 21 and the linkage turntable 22 are fixed together. Moreover, the traditional aluminum-zinc alloy transmission turntable is thicker at the location of the lock pin fixing hole 2221. If the same structure is used in the iron transmission turntable, cracks will occur in the above-mentioned location during the casting process. This would affect the stability of the structure. In this utility model, the above structure is changed to the locking pin fixing groove 222, which reduces the thickness at the above position while achieving the same tensile strength. Furthermore, the transmission rod seat 21 is changed from the original solid aluminum-zinc alloy to a hollow structure with the receiving groove 211, which also achieves the same tensile strength. At the same time, the whole structure is made of sheet metal, which reduces the cost of the transmission turntable and the manufacturing difficulty of the transmission turntable. This significantly reduces the cost of rotating the turntable, improves the strength and stability of the transmission turntable, and is conducive to the promotion of locks.

[0043] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, in order to fix the transmission rod seat 21 to one end of the linkage turntable 22, the fixing part 2112 extends outward to form multiple fixing protrusions 2113, and the fixing notch 221 is recessed inward to form multiple fixing grooves 2211. After the fixing protrusions 2113 are embedded into the corresponding fixing grooves 2211, the fixing part 2112 is welded to the fixing notch 221, so that the fixing method is convenient and quick, and the tensile strength of the complete iron transmission turntable after fixing can also meet the standard.

[0044] To guide the rotation of the iron transmission turntable 20 of the lock, the inner side of the opening of the receiving groove 211 is recessed to form a first guide ring groove 2114; the clutch turntable 50 includes: a turntable body 52 and a handle shaft 53. One end of the handle shaft 53 passes through the turntable body 52 and extends toward the first guide ring groove 2114 to form a guide protrusion 531. The guide protrusion 531 extends into the first guide ring groove 2114 and abuts against the first guide ring groove 2114 to support the rotation of the iron transmission turntable 20 of the lock.

[0045] In order to connect the power cord of the lock, a wire outlet groove 212 is provided on one side of the transmission rod seat 21. The wire outlet groove 212 is used to connect the power cord. The connected power cord cooperates with the control circuit of the lock to realize various types of control functions, such as fingerprint recognition and face recognition functions.

[0046] In order to fix the lock cylinder, the transmission rod seat 21 is provided with fixing through holes 213 on both sides. After the lock cylinder passes through the linkage through groove 2111 and extends into the receiving groove 211, the fixing screw passes through the fixing through hole 213 and extends into the lock cylinder for fixing, thereby fixing one end of the lock cylinder to the transmission rod seat 21.

[0047] In order to limit the locking pin return spring 40, the openings on both sides of the locking pin fixing groove 222 extend upward to form a first limiting protrusion 2222. The first limiting protrusion 2222 abuts against both sides of the locking pin return spring 40 to limit the swaying of the locking pin return spring 40, thereby increasing the return stability of the locking pin return spring 40.

[0048] To increase the rotational stability of the iron transmission turntable 20 of the lock, the fixing part 2112 is provided with a second guide ring groove 2115 on the side facing the lock housing 10. The lock housing 10 extends towards the second guide ring groove 2115 to form an abutting guide protrusion 11. The abutting guide protrusion 11 is embedded in the second guide ring groove 2115 and can slide along the direction of the second guide ring groove 2115. While guiding the iron transmission turntable 20 of the lock to rotate, it presses the iron transmission turntable 20 of the lock against the clutch turntable.

[0049] To reset the rotation of the clutch disc 50, the lock further includes a reset spring 60, which is sandwiched between the lock housing 10 and the clutch disc 50; a limiting screw 70 passes through one side of the clutch disc 50 and extends outward to form a first limiting protrusion 71, which abuts against one end of the reset spring 60; the other side of the clutch disc 50 extends downward to form a second limiting protrusion 54, which abuts against the other end of the reset spring 60; the reset spring 60 resets the rotation of the clutch disc 50 through the first limiting protrusion 71 and the second limiting protrusion 54.

[0050] In order to reset the rotation of the linkage turntable 22, a limiting groove 223 is provided on one side of the linkage turntable 22 at the position corresponding to the limiting screw 70. The limiting screw 70 abuts against the limiting groove 223 to initially reset the rotation of the linkage turntable 22. The two sides of the linkage turntable 22 extend toward the two ends of the reset coil spring 60 to form second limiting protrusions 224. The two second limiting protrusions 224 abut against the two ends of the corresponding reset coil spring 60. The reset coil spring 60 further resets the rotation of the linkage turntable 22 through the second limiting protrusions 224.

[0051] In this utility model, the applicant also conducted a simulation finite element analysis on the stability and reliability of the transmission turntable 20. In the simulated door-opening rotation force analysis, under a destructive test condition of a rotational force of 500N (50KG), as shown... Figure 10 As shown, its static displacement, with the center point fixed, is subjected to a force of 500N at the force-bearing position F without serious deformation or breakage, and the product can be used. In contrast, the traditional aluminum-zinc alloy transmission turntable 20, under the above conditions, will exhibit more severe deformation or breakage, and the product cannot be used normally.

[0052] like Figure 11 As shown, in static strain, the strain is between 1.172e-12 and 1.115e-03, and no fracture or destructive result is produced. In contrast, the transmission turntable 20 made of conventional aluminum-zinc alloy will produce fracture and destructive result under the above conditions, affecting normal use.

[0053] like Figure 12 As shown, under stress, the material yield strength is 2.827e=0.8, which is close to the actual value. The material was not damaged. However, compared to the traditional aluminum-zinc alloy transmission turntable 20, the test under the above conditions would result in material damage, which would also affect normal use.

[0054] The present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments can be made without departing from the principles and spirit of the present invention, and these changes still fall within the protection scope of the present invention.

Claims

1. An iron transmission turntable for a lock, characterized in that, include: The transmission rod seat and the linkage turntable are provided. One end of the transmission rod seat is recessed inward to form a receiving groove. The bottom of the receiving groove is provided with a linkage through groove that is linked with the lock cylinder. After the lock cylinder passes through the linkage through groove, it extends into the receiving groove and is fixed to the transmission rod seat. The receiving groove extends outward to form a fixing part, and the middle part of the linkage turntable is provided with a fixing notch. The fixing part is fixed to the opening of the fixing notch, so that the transmission rod seat is fixed to one end of the linkage turntable. The linkage turntable extends outward on one side to form a locking pin fixing groove. The two sides of the locking pin fixing groove are provided with locking pin through holes. The locking pin is accommodated in the locking pin through holes. The diameter of the locking pin through holes is smaller than the diameter of the two ends of the locking pin return spring. The locking pin return spring is sleeved on the locking pin and clamped between the two locking pin through holes. The clutch turntable is provided with a snap-fit ​​notch on the side near the locking pin through holes. After the locking pin is compressed by the locking pin return spring, the locking pin passes through the locking pin hole and extends into the locking notch to engage, keeping the linkage turntable and clutch turntable locked. The locking pin return spring then resets and drives the locking pin to retract from the locking notch back into the locking pin hole, thus unlocking the linkage turntable and clutch turntable.

2. The iron transmission turntable of the lock as described in claim 1, characterized in that, The fixing part extends outward to form multiple fixing protrusions, and the fixing notch is recessed inward to form multiple fixing grooves. After the fixing protrusions are embedded into the corresponding fixing grooves, the fixing part is welded to the fixing notch.

3. The iron transmission turntable of the lock as described in claim 1, characterized in that, The opening of the receiving groove is recessed inward to form a first guide ring groove; The clutch turntable includes a turntable body and a handle shaft. One end of the handle shaft passes through the turntable body and extends toward the first guide ring groove to form a guide protrusion. The guide protrusion extends into the first guide ring groove and abuts against the first guide ring groove to support the rotation of the iron transmission turntable that guides the lock.

4. The iron transmission turntable of the lock as described in claim 1, characterized in that, The transmission rod seat has a wire outlet groove on one side, which is used to connect the power cord.

5. The iron transmission turntable of the lock as described in claim 1, characterized in that, The transmission rod seat has fixing holes on both sides. After the lock cylinder passes through the linkage slot and extends into the receiving slot, the fixing screw passes through the fixing hole and extends into the lock cylinder for fixing.

6. The iron transmission turntable of the lock as described in claim 1, characterized in that, The openings on both sides of the locking pin fixing groove extend upward to form a first limiting protrusion. The first limiting protrusion abuts against both sides of the locking pin return spring to limit the swaying of the locking pin return spring.

7. A lock, comprising: The lock housing is characterized in that it further includes an iron transmission turntable of the lock as described in any one of claims 1-6, wherein the iron transmission turntable of the lock is housed within the lock housing.

8. The lock as described in claim 7, characterized in that, The fixing part is provided with a second guide ring groove on the side facing the lock housing. The lock housing extends towards the second guide ring groove to form an abutting guide protrusion. The abutting guide protrusion is embedded in the second guide ring groove and can slide along the direction of the second guide ring groove.

9. The lock as described in claim 7, characterized in that, The lock also includes a return coil spring, which is clamped between the lock housing and the clutch turntable; The limiting screw passes through one side of the clutch disc and extends outward to form a first limiting protrusion. The first limiting protrusion abuts against one end of the reset coil spring. The other side of the clutch disc extends downward to form a second limiting protrusion. The second limiting protrusion abuts against the other end of the reset coil spring. The reset coil spring resets the rotation of the clutch disc through the first and second limiting protrusions.

10. The lock as described in claim 9, characterized in that, One side of the linkage turntable is provided with a limiting groove at the position of the corresponding limiting screw. The limiting screw abuts against the limiting groove to initially reset the rotation of the linkage turntable. The two sides of the linkage turntable extend toward the two ends of the reset coil spring to form second limiting protrusions. The two second limiting protrusions abut against the two ends of the corresponding reset coil springs, and the reset coil springs further reset the rotation of the linkage turntable through the second limiting protrusions.

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