A new type of handle

CN224859345UActive Publication Date: 2026-10-16ZHEJIANG LAIDI TECH CO LTD
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Patent Information

Application Number
CN202522512465.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-26
Publication Date
2026-10-16
Estimated Expiration
2035-11-26

AI Technical Summary

Technical Problem

然而,传统执手在使用过程中锁体在锁定和开启过程中往往存在噪音较大的问题,这些问题不仅影响了用户的使用体验,尤其是在需要安静环境的场所

Benefits of technology

[0014]The beneficial effects of this utility model are as follows: This design effectively solves the problem of excessive noise during locking and unlocking by cleverly incorporating noise-absorbing structures within the inner and outer handles. The combined use of the noise-absorbing ring and the noise-absorbing strip suppresses the noise generated by the inner and outer locking structures, greatly improving the user experience. Simultaneously, the elastic structure of the noise-absorbing strip and ring effectively suppresses noise and impact generated when the locking element extends into the limiting groove and when the locking part intersects with the locking groove, further reducing damage and wear of the components and extending the service life of the handle.

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Abstract

A new handle, the inner handle is provided with an inner lock structure, the outer handle is provided with an outer lock structure, the inner handle and the outer handle are provided with a transmission shaft, the transmission shaft drives the inner handle and the outer handle to rotate synchronously, the transmission shaft is provided with a transmission bar which can rotate relatively, the two ends of the transmission bar are connected with the inner lock structure and the outer lock structure respectively, the inner handle and the outer handle are provided with a sound attenuation structure, the sound attenuation structure comprises a sound attenuation ring and a sound attenuation bar, the sound attenuation ring is sleeved on one end of the inner lock structure. The sound attenuation structure is arranged in the inner handle and the outer handle, which effectively solves the problem of large noise during locking and opening of the handle. The sound attenuation ring and the sound attenuation bar are used together to suppress the sound generated by the inner lock structure and the outer lock structure respectively, which greatly improves the user experience. At the same time, the elastic structure of the sound attenuation bar can also effectively suppress the noise and impact generated by the locking part extending into the limiting groove, further reducing the damage and wear of the accessories and prolonging the service life of the handle.
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Description

Technical Field

[0001] This utility model relates to the field of handles, specifically to a novel handle. Background Technology

[0002] As an indispensable component in everyday items such as doors, windows, and furniture, the handle's main function is to facilitate opening, closing, and locking operations. However, traditional handles often produce significant noise during locking and unlocking, impacting the user experience, especially in environments requiring quiet. Furthermore, the impact and collision between the lock bodies during opening and closing can easily damage and wear down components over time, negatively affecting the handle's lifespan. Summary of the Invention

[0003] In view of this, the present invention provides a novel handle.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A novel handle includes an inner handle and an outer handle arranged opposite to each other. The inner handle has an inner locking structure, and the outer handle has an outer locking structure. A drive shaft is provided between the inner and outer handles, driving the inner and outer handles to rotate synchronously. A drive bar that can rotate relative to each other is also provided inside the drive shaft. The two ends of the drive bar are connected to the inner and outer locking structures, respectively. A noise-dampening structure is provided inside the inner and outer handles. The noise-dampening structure includes a noise-dampening ring and a noise-dampening strip. The inner locking structure includes an inner locking connector and an annular locking sleeve. A limit groove is provided on the inner side of the outer handle, and the outer locking structure is disposed in the limit groove. The noise-dampening ring is sleeved on one end of the inner locking connector to suppress the sound generated during inner locking. The noise-dampening strip protrudes from the limit groove to suppress the sound generated by the outer locking structure.

[0005] Preferably, the inner locking connector includes a main body and a locking part protruding from the main body. The muffler ring is sleeved on the outside of the locking part. A receiving cavity is formed on the inner handle. The main body is disposed in the receiving cavity. A locking groove is formed on the side wall of the receiving cavity. One end of the locking part extends out of the locking groove and is movably disposed in the locking groove. One end of the transmission bar passes through the main body and extends into the receiving cavity.

[0006] Preferably, the silencing ring sleeve has a hollow structure, which eliminates the noise generated by the collision between the locking part and the inner wall of the locking groove during the movement of the locking part.

[0007] Preferably, the annular lock sleeve is fitted onto the inner handle, one end of the locking part passes through the locking groove and connects with the annular lock sleeve, and the annular lock sleeve drives the inner lock connector and the transmission bar to rotate within the receiving cavity through the locking part.

[0008] Preferably, the outer lock structure includes a lock cylinder, a locking seat, and a locking element; the inner handle includes an inner handle and an inner handle seat; the outer handle includes an outer handle and an outer handle seat; a lock cavity is formed in the outer handle; the lock cylinder is disposed in the lock cavity; the locking seat and the locking element are disposed in the outer handle seat; and one end of the transmission bar passes through the locking seat and connects to the lock cylinder.

[0009] Preferably, the outer side of the locking seat has a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are connected, the locking member is disposed in the first arc-shaped groove, the lock cylinder drives the transmission bar to move so that the locking member moves in the first arc-shaped groove and the second arc-shaped groove, the second arc-shaped groove is deeper than the first arc-shaped groove.

[0010] Preferably, a limiting groove is provided in the outer handle seat, and the limiting groove is set to the position of the locking member. When the handle is locked, one side of the locking member is set in the limiting groove, and the other side abuts against the first arc-shaped groove of the lock seat. When the handle is not locked, the locking member disengages from the limiting groove and is set in the second arc-shaped groove. The locking member can rotate with the locking seat in the lock cavity.

[0011] Preferably, an inner handle connector is provided on the side of the inner handle base away from the inner handle, and the inner handle connector is provided with an inner handle connection hole. One end of the inner handle passes through the inner handle base and the inner handle connection hole and connects with the inner handle connector. An outer handle connector is provided on the side of the outer handle base near the inner handle connector, and the outer handle connector is provided with an outer handle connection hole. One end of the outer handle passes through the outer handle base and the outer handle connection hole and connects with the outer handle connector.

[0012] Preferably, the noise-absorbing strips are arranged at equal intervals on the inner wall of the limiting groove, and the noise-absorbing strips are elastic in structure, thereby suppressing the noise and impact generated by the locking member extending into the limiting groove.

[0013] Preferably, the silencing strip has a connecting part and a silent part, a fixing groove is provided on the outer handle, the connecting part extends into the fixing groove so that the silencing strip is connected to the outer handle seat, and the silent part extends out of the fixing groove and is connected to the locking member.

[0014] The beneficial effects of this utility model are as follows: This design effectively solves the problem of excessive noise during locking and unlocking by cleverly incorporating noise-absorbing structures within the inner and outer handles. The combined use of the noise-absorbing ring and the noise-absorbing strip suppresses the noise generated by the inner and outer locking structures, greatly improving the user experience. Simultaneously, the elastic structure of the noise-absorbing strip and ring effectively suppresses noise and impact generated when the locking element extends into the limiting groove and when the locking part intersects with the locking groove, further reducing damage and wear of the components and extending the service life of the handle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the structure of the handle seat and locking seat in this utility model; Appendix Figure 3 This is a schematic diagram of the structure of the handle base and the sound-absorbing strip in this utility model; Appendix Figure 4 This is a schematic diagram of the inner handle in this utility model; Appendix Figure 5 This is a structural schematic diagram of the present invention from another angle; Appendix Figure 6 For the appendix Figure 5 Sectional view at point AA; Appendix Figure 7 This is a schematic diagram of the present invention from another angle; Appendix Figure 8 For the appendix Figure 7 Sectional view at point BB; Appendix Figure 9 This is a schematic diagram of the internal locking connector in this utility model; Appendix Figure 10 For the appendix Figure 6 Enlarged view of point A in the middle; Appendix Figure 11 For the appendix Figure 8 Enlarged view of point B in the middle.

[0017] Figure label: 1. Inner handle; 2. Outer handle; 3. Inner locking structure; 4. Outer locking structure; 5. Drive shaft; 6. Drive bar; 7. Silencing structure; 8. Silencing ring; 9. Silencing bar; 10. Inner lock connector; 11. Ring lock sleeve; 12. Receiving cavity; 13. Locking groove; 14. Main body; 141. Locking part; 15. Lock cylinder; 16. Locking seat; 17. Locking part; 18. Lock cavity; 19. First arc groove; 20. Second arc groove; 21. Limiting groove; 22. Inner handle; 23. Inner handle seat; 24. Outer handle; 25. Outer handle seat; 26. Inner handle connector; 27. Inner handle connecting hole; 28. Outer handle connector; 29. ​​Outer handle connecting hole; 30. Connecting part; 31. Silent part; 32. Fixing groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] This utility model provides the following technical solution: As attached Figure 1-11 As shown in the accompanying drawings, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] This utility model provides the following technical solution: As attached Figure 1-11As shown, this utility model discloses a novel handle, including an inner handle 1 and an outer handle 2 arranged opposite to each other. The inner handle 1 is provided with an inner locking structure 3, and the outer handle 2 is provided with an outer locking structure 4. A transmission shaft 5 is provided between the inner handle 1 and the outer handle 2, and the transmission shaft 5 drives the inner handle 1 and the outer handle 2 to rotate synchronously. A transmission bar 6, which can rotate relative to each other, is also provided inside the transmission shaft 5. The two ends of the transmission bar 6 are respectively connected to the inner locking structure 3 and the outer locking structure 4. A noise-absorbing structure 7 is provided inside the outer handle 2. The noise-absorbing structure 7 includes a noise-absorbing ring 8 and a noise-absorbing strip 9. The inner locking structure 3 includes an inner locking connector 10 and a ring-shaped locking sleeve 11. A limiting groove 21 is provided on the inner side of the outer handle 2. The outer locking structure 4 is disposed in the limiting groove 21. The noise-absorbing ring 8 is sleeved on one end of the inner locking connector 10 to suppress the sound generated during inner locking. The noise-absorbing strip 9 protrudes from the limiting groove 21 to suppress the sound generated by the outer locking structure 4. In this embodiment, the function of the noise-absorbing structure 7 is to effectively absorb the kinetic energy of the locking member 17 at the moment of contact with the limiting groove 21 through its elastic deformation characteristics, significantly reducing the noise of metal collision. At the same time, the design of the noise-absorbing ring 8 forms a buffer layer when the locking part 141 and the locking groove 13 undergo relative displacement, which not only blocks the vibration transmission path but also reduces the rigid friction between the components. This dual noise reduction mechanism not only optimizes the auditory experience during handle operation, but also extends the service life of moving parts such as the locking element 17 and the locking part 141 by reducing impact.

[0023] Furthermore, the inner lock connector 10 includes a main body 14 and a locking part 141 protruding from the main body. The muffler ring 8 is sleeved on the outside of the locking part 141. The inner handle 1 has a receiving cavity 12, and the main body 14 is disposed in the receiving cavity 12. A locking groove 13 is formed on the side wall of the receiving cavity 12. One end of the locking part 141 extends out of the locking groove 13 and is movably disposed in the locking groove 13. One end of the transmission bar 6 passes through the main body 14 and extends into the receiving cavity 12. In this embodiment, the inner lock structure 3 realizes the locking and unlocking operation of the handle by the movable setting of the locking part 141 in the locking groove 13. When the user rotates the annular lock sleeve 11, the annular lock sleeve 11 drives the locking part 141 to move in the locking groove 13, so that the transmission bar 6 rotates synchronously, thereby cooperating with the outer lock structure 4 to complete the locking or unlocking action of the handle. In the locked state, the locking part 141 is engaged in a specific position in the locking groove 13; to unlock, simply rotate the annular locking sleeve 11 in the reverse direction to disengage the locking part 141 from its current position in the locking groove 13, while simultaneously rotating the transmission bar 6 in the reverse direction, allowing the handle to be easily rotated. This design is not only easy to operate but also structurally reliable, effectively preventing accidental unlocking due to misoperation. Furthermore, the presence of the noise-dampening ring sleeve 8 significantly reduces noise and impact during locking and unlocking, further enhancing the user experience.

[0024] Furthermore, the silencing ring 8 has a hollow structure, which eliminates the noise generated by the collision between the locking part 141 and the inner wall of the locking groove 13 during rotation. In this embodiment, the function of the silencing ring 8 is to silence the noise generated by the direct metal-to-metal collision between the locking part 141 and the inner wall of the locking groove 13. The hollow structure of the silencing ring 8 allows it to be better fixed to the locking part 141. When the locking part 141 contacts the inner wall of the locking groove 13, the silencing ring 8 can undergo elastic deformation, absorbing and dispersing the energy generated by the collision, thereby effectively eliminating the collision noise. At the same time, this elastic deformation can also reduce the rigid friction between the locking part 141 and the inner wall of the locking groove 13, reduce the wear rate of the component, and extend the service life of the handle. In this embodiment, a gap is provided between the locking part 141 and the locking groove 13.

[0025] Furthermore, the annular locking sleeve 11 is fitted onto the inner handle 1, and one end of the locking part 141 passes through the locking groove 13 and connects with the annular locking sleeve 11. The annular locking sleeve 11 drives the inner locking connector 10 and the transmission bar 6 to rotate within the receiving cavity 12 via the locking part 141. In this embodiment, the annular locking sleeve 11 serves as a direct drive component for user operation. When the user applies a rotational force, the annular locking sleeve 11 transmits torque to the inner locking connector 10 via the locking part 141, thereby driving the transmission bar 6 to rotate within the receiving cavity 12, achieving synchronous linkage between the inner locking structure 3 and the outer locking structure 4. This design not only simplifies the operation process but also reduces mechanical clearance through the tight fit between the annular locking sleeve 11 and the inner handle 1, thereby reducing vibration and noise during rotation and improving the overall structural durability. In this embodiment, the surface of the annular locking sleeve 11 is provided with a raised anti-slip texture.

[0026] Furthermore, the outer locking structure 4 includes a lock cylinder 15, a locking seat 16, and a locking member 17. The inner handle 1 includes an inner handle 22 and an inner handle seat 23. The outer handle 2 includes an outer handle 24 and an outer handle seat 25. A locking cavity 18 is formed in the outer handle 24. The lock cylinder 15 is disposed in the locking cavity 18. The locking seat 16 and the locking member 17 are disposed in the outer handle seat 25. One end of the transmission bar 6 passes through the locking seat 16 and connects with the lock cylinder 15. In this embodiment, the function of the outer locking structure 4 is to drive the transmission bar 6 by rotating the lock cylinder 15, thereby driving the locking member 17 to move within the locking seat 16, thus controlling the engagement state of the locking member 17 with the limiting groove 21 and realizing the locking and unlocking functions of the handle. When the handle is locked, one side of the locking element 17 is engaged in the limiting groove 21, and the other side is tightly abutted against the first arc-shaped groove 19 of the locking seat 16, forming a rigid lock to prevent the handle from rotating accidentally. When the handle is unlocked, the lock cylinder 15 drives the transmission bar 6 to move in the opposite direction, causing the locking element 17 to disengage from the limiting groove 21 and slide into the deeper second arc-shaped groove 20. At this time, the locking element 17 can rotate freely with the locking seat 16 in the lock cavity 18, allowing the handle to operate smoothly. The noise-dampening strip 9 is set on the inner wall of the limiting groove 21. Its elastic structure deforms at the moment the locking element 17 engages, effectively absorbing impact kinetic energy and suppressing metal collision noise, while reducing component wear, further improving the service life and quiet operation of the handle. In addition, the connection design of the first arc-shaped groove 19 and the second arc-shaped groove 20 of the locking seat 16 ensures a smooth transition of the movement trajectory of the locking element 17, avoiding jamming and enhancing the reliability and durability of the overall structure. In this embodiment, a lock opening is provided on one side of the external handle 24, and one side of the lock cylinder 15 extends out of the lock opening to connect with the outside. The lock cylinder 15 at the lock opening can be controlled by a key at the external handle 2, thereby opening and closing the handle. In this embodiment, the locking member 17 is cylindrical or spherical. This design ensures that the locking member 17 can be locked tightly against the locking seat 16 without slipping, and also maintains smooth movement within the arc-shaped groove, reducing jamming or additional noise caused by irregular shapes. The cylindrical or spherical locking member design also ensures locking strength while dispersing local stress, preventing local deformation or damage due to long-term use. In this embodiment, the locking member 17 is mounted on the locking seat 16 and moves within the arc-shaped groove of the locking seat 16 in conjunction with the external handle. In this embodiment, one end of the lock cylinder 15 extends into the lock cavity 18 for connection, and the other end of the lock cylinder 15 is connected to the transmission bar 6. One end of the transmission bar 6 passes through the locking seat 16 and is connected to the lock cylinder 15.

[0027] Furthermore, the outer side of the locking seat 16 has a first arc-shaped groove 19 and a second arc-shaped groove 20, which are connected. The locking member 17 is disposed in the first arc-shaped groove 19. The lock cylinder 15 drives the transmission bar 6 to move, causing the locking member 17 to move within the first arc-shaped groove 19 and the second arc-shaped groove 20. The second arc-shaped groove 20 is deeper than the first arc-shaped groove 19. In this embodiment, the special design of the first arc-shaped groove 19 and the second arc-shaped groove 20 allows the locking member 17 to move at different depth positions, thereby realizing the switching between the locking and unlocking states of the handle. When the locking member 17 is located in the first arc-shaped groove 19, it engages with the limiting groove 21 to form a rigid lock, preventing the handle from rotating. When the locking member 17 moves into the second arc-shaped groove 20, due to the greater depth of this groove, the locking member 17 disengages from the limiting groove 21, allowing the handle to rotate freely. This design is not only simple in structure but also reliable in operation, effectively improving the safety and ease of use of the handle. Meanwhile, the smooth transition between the first arc-shaped groove 19 and the second arc-shaped groove 20 ensures that the locking element 17 will not jam during movement, further enhancing the stability and durability of the overall structure.

[0028] Furthermore, a limiting groove 21 is formed within the outer handle seat 25. The limiting groove 21 corresponds to the position of the locking member 17. When the handle is locked, one side of the locking member 17 is positioned within the limiting groove 21, and the other side abuts against the first arc-shaped groove 19 of the lock seat. When the handle is unlocked, the locking member 17 disengages from the limiting groove 21 and is positioned within the second arc-shaped groove 20. The locking member 17 can rotate within the lock cavity 18 along with the locking seat 16. In this embodiment, the limiting groove 21 provides precise positioning and restriction for the locking member 17, ensuring that in the locked state, the locking member 17 can be securely fitted within the limiting groove 21, forming a tight rigid lock with the first arc-shaped groove 19, thereby effectively preventing accidental rotation of the handle. This design not only enhances the locking stability of the handle but also improves the overall structural safety. Meanwhile, when the handle is unlocked, the design of the limiting groove 21 allows the locking member 17 to smoothly disengage and slide into the second arc-shaped groove 20, enabling the handle to rotate freely. In addition, the precise machining of the limiting groove 21 and its tight fit with the locking member 17 further improve the operating accuracy and durability of the handle.

[0029] Furthermore, an inner handle connector 26 is provided on the side of the inner handle base 23 away from the inner handle 22. The inner handle connector 26 has an inner handle connection hole 27. One end of the inner handle 22 passes through the inner handle base 23 and the inner handle connection hole 27 to connect with the inner handle connector 26. An outer handle connector 28 is provided on the side of the outer handle base 25 near the inner handle connector 26. The outer handle connector 28 has an outer handle connection hole 29. One end of the outer handle 24 passes through the outer handle base 25 and the outer handle connection hole 29 to connect with the outer handle connector 28. In this embodiment, the inner handle 1 and the outer handle 2 achieve stable assembly of the structure through the precise docking of the inner handle connector 26 and the outer handle connector 28. The inner handle 22 and inner handle seat 23, and the outer handle 24 and outer handle seat 25, all employ an embedded connection design. This not only enhances the overall aesthetics but also improves connection reliability by optimizing the contact area. Simultaneously, the machining precision of the inner handle connection hole 27 and outer handle connection hole 29 is strictly controlled, ensuring smooth passage of the drive shaft 5 and drive bar 6, avoiding rotational jamming or noise problems caused by assembly errors. Furthermore, this split design facilitates later maintenance; when a component wears out, it can be replaced individually without disassembling the entire handle structure, significantly reducing maintenance costs and time. In this embodiment, one end of the drive shaft 5 is fixedly connected to the outer handle connector 28, and the other end of the drive shaft 5 passes through the inner handle connector 26 and extends into the inner handle 22 for connection. Both the inner handle seat 23 and outer handle seat 25 have hollow connection holes, and one end of the inner handle 22 and outer handle 24 passes through these hollow connection holes to connect with the inner handle connector 26 and outer handle connector 28, respectively.

[0030] Furthermore, the noise-absorbing strips 9 are arranged at equal intervals on the inner wall of the limiting groove 21. The noise-absorbing strips 9 have an elastic structure and suppress the noise and impact generated when the locking member 17 extends into the limiting groove 21. In this embodiment, the function of the noise-absorbing strips 9 is to rapidly absorb and disperse the energy generated by the collision when the locking member 17 extends into the limiting groove 21, thereby effectively suppressing the harsh noise generated by the metal collision, through their elastic deformation characteristics. This design not only provides users with a quieter operating environment but also reduces the wear rate of the locking member 17 and the limiting groove 21 by reducing impact force, further extending the service life of the handle. At the same time, the elastic structure of the noise-absorbing strips 9 can adapt to locking members 17 of different sizes, ensuring a stable noise reduction effect in various usage scenarios.

[0031] Furthermore, the muffler strip 9 has a connecting portion 30 and a silent portion 31. A fixing groove 32 is formed on the outer handle base 25. The connecting portion 30 extends into the fixing groove 32, allowing the muffler strip 9 to connect with the outer handle base 25. The silent portion 31 extends out of the fixing groove 32 and connects with the locking member 17. In this embodiment, the connecting portion 30 of the muffler strip 9 and the fixing groove 32 on the outer handle base 25 are interference-fitted, ensuring a stable installation of the muffler strip 9 while facilitating quick disassembly and maintenance.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel handle, comprising an inner handle and an outer handle arranged opposite to each other, wherein the inner handle is provided with an inner locking structure, and the outer handle is provided with an outer locking structure; a transmission shaft is provided between the inner handle and the outer handle, the transmission shaft driving the inner handle and the outer handle to rotate synchronously; a transmission bar that can rotate relative to each other is also provided inside the transmission shaft, and the two ends of the transmission bar are respectively connected to the inner locking structure and the outer locking structure, characterized in that: The inner and outer handles are equipped with noise-absorbing structures, which include a noise-absorbing ring and a noise-absorbing strip. The inner locking structure includes an inner locking connector and a ring-shaped locking sleeve. The inner side of the outer handle is provided with a limiting groove, and the outer locking structure is disposed in the limiting groove. The noise-absorbing ring is sleeved on one end of the inner locking connector to suppress the sound generated during inner locking. The noise-absorbing strip protrudes and is disposed in the limiting groove to suppress the sound generated by the outer locking structure.

2. The novel handle according to claim 1, characterized in that: The inner locking connector includes a main body and a locking part protruding from the main body. The muffler ring is sleeved on the outside of the locking part. A receiving cavity is opened on the inner handle. The main body is disposed in the receiving cavity. A locking groove is opened on the side wall of the receiving cavity. One end of the locking part extends out of the locking groove. The locking part is movably disposed in the locking groove. One end of the transmission bar passes through the main body and extends into the receiving cavity.

3. A novel handle according to claim 2, characterized in that: The silencing ring is hollow and eliminates the noise generated by the collision between the locking part and the inner wall of the locking groove during the movement of the locking part.

4. A novel handle according to claim 2, characterized in that: The annular lock sleeve is fitted onto the inner handle, and one end of the locking part passes through the locking groove and connects with the annular lock sleeve. The annular lock sleeve drives the inner lock connector and the transmission bar to rotate within the receiving cavity through the locking part.

5. A novel handle according to claim 1, characterized in that: The external lock structure includes a lock cylinder, a locking seat, and a locking component. The inner handle includes an inner handle and an inner handle seat. The outer handle includes an outer handle and an outer handle seat. A lock cavity is formed inside the outer handle. The lock cylinder is disposed inside the lock cavity. The locking seat and the locking component are disposed inside the outer handle seat. One end of the transmission bar passes through the locking seat and connects to the lock cylinder.

6. A novel handle according to claim 5, characterized in that: The locking seat has a first arc-shaped groove and a second arc-shaped groove on its outer side. The first arc-shaped groove and the second arc-shaped groove are connected. The locking member is disposed in the first arc-shaped groove. The lock cylinder drives the transmission bar to move, so that the locking member moves in the first arc-shaped groove and the second arc-shaped groove. The second arc-shaped groove is deeper than the first arc-shaped groove.

7. A novel handle according to claim 6, characterized in that: A limiting groove is provided in the outer handle seat, and the limiting groove is set to the position of the locking member. When the handle is locked, one side of the locking member is set in the limiting groove, and the other side of the locking member abuts against the first arc-shaped groove of the locking member seat. When the handle is not locked, the locking member is disengaged from the limiting groove and is set in the second arc-shaped groove. The locking member can rotate with the locking seat in the lock cavity.

8. A novel handle according to claim 5, characterized in that: An inner handle connector is provided on the side of the inner handle base away from the inner handle. The inner handle connector has an inner handle connection hole. One end of the inner handle passes through the inner handle base, extends into the inner handle connection hole, and connects with the inner handle connector. An outer handle connector is provided on the side of the outer handle base near the inner handle connector. The outer handle connector has an outer handle connection hole. One end of the outer handle passes through the outer handle base and the outer handle connection hole and connects with the outer handle connector.

9. A novel handle according to claim 1, characterized in that: The noise-absorbing strips are arranged at equal intervals on the inner wall of the limiting groove. The noise-absorbing strips are elastic in structure and suppress the noise and impact generated by the locking member extending into the limiting groove.

10. A novel handle according to claim 9, characterized in that: The silencing strip has a connecting part and a silent part. A fixing groove is provided on the outer handle. The connecting part extends into the fixing groove so that the silencing strip is connected to the outer handle seat. The silent part extends out of the fixing groove and is connected to the locking member.