Control mechanism for state switching
By adopting a rounded lock head abutment and spring design in the furniture control mechanism, the problems of increased cost due to the integrated design of the lock head and spring head and unstable contact due to the separate design are solved, achieving stable operation and good feel, and improving service life and user experience.
Patent Information
- Application Number
- CN202520065172.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In existing furniture control mechanisms, the integrated design of the lock and spring increases manufacturing costs and makes them prone to damage, while the separate design leads to unstable contact, poor feel, and affects service life and user experience.
The design of the arc-shaped lock head contact part and the spring piece ensures that the spring piece and the lock head are always in point contact. Combined with the U-shaped groove and pull cable assembly, it achieves stable operation and good feel.
It improves the service life and operation feel of the control mechanism, ensures uniform clockwise and counterclockwise rotation, and enhances user experience and product quality.
Smart Images
Figure CN223585534U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to furniture seat technical field, especially a control mechanism for state switching. BACKGROUND
[0002] In various furniture, accurate and convenient state switching control mechanism is often needed to meet different functional requirements and user operation experience. The control mechanism developed in the past has preliminarily realized the function of switching state by rotating the hand control to drive the movement of the moving part, but its internal structure has many drawbacks. In the early stage, the integral spring sheet and lock head design were used in the moving part, which seemed to simplify part of the assembly process, but actually greatly increased the manufacturing cost. Moreover, since the lock head and the spring sheet are fixedly connected, when the lock head retracts, the spring sheet not only bears the deformation stress, but also is easily damaged by bending, greatly shortening the overall service life, and frequent replacement of parts brings many inconveniences to users and increases maintenance cost.
[0003] The subsequent improved version separates the lock head from the spring sheet to try to solve the cost and life problems, but new problems follow. The spring sheet is movably abutted on the lock head, and the lock head abutting portion is flat, which leads to unstable abutment of the spring sheet and the lock head, and the feeling is uneven during operation. Especially when rotating the hand control in different directions, the contact state changes frequently, the feeling difference is obvious, which brings trouble to users, and it is difficult to realize smooth and accurate operation, which seriously affects the overall quality of the product and user satisfaction. SUMMARY
[0004] In order to solve the above technical problems, the utility model provides a control mechanism for state switching, which comprises a base, a hand control assembly and a switching assembly, the mounting seat of the switching assembly is placed on the base, the moving part is rotatably mounted on the mounting seat, and the hand control assembly is linked with the moving part. The moving part is provided with a spring sheet and a telescopic lock head, the mounting seat has a clamping groove, the spring sheet provides elastic force for the lock head, the lock head comprises a clamping portion and an arc-shaped abutting portion, and the clamping portion is clamped into the clamping groove to realize state switching. In the prior similar mechanism, the integral spring sheet lock head is high in cost and easy to be damaged, and the subsequent separated type is unstable in contact between the spring sheet and the lock head due to the flatness of the lock head abutting portion, the feeling of the hand control is poor, and the steering feeling is uneven. The abutting portion is arc-shaped in the scheme, the spring sheet and the lock head are always in point contact, the rotating feeling is good, and the operation experience is improved.
[0005] The technical scheme of the utility model is realized as follows:
[0006] The utility model provides a control mechanism for state switching, including base, hand control subassembly and switching subassembly, switching subassembly includes mounting seat and at least one moving piece, mounting seat sets up on the base, moving piece rotationally sets up on mounting seat, hand control subassembly rotationally sets up on the base, hand control subassembly is connected with moving piece and is linked together, moving piece is equipped with spring and lock head, mounting seat is equipped with at least two clamping slots, lock head sets up on moving piece, spring is configured to abut with lock head and gives the elastic force of lock head towards mounting seat, lock head includes abutment and clamping part, clamping part is clamped with clamping slot, abutment abuts with spring, and abutment is arc-shaped, when hand control subassembly controls moving piece to rotate and makes clamping part switch in clamping slot, the mechanism controls the switching of state.
[0007] A control mechanism has been developed previously, rotating a hand control to drive the movement of a moving piece, an integral spring and lock head are provided in the moving piece, which play the same role, but the integral spring and lock head undoubtedly increase the manufacturing cost, and since the lock head and the spring are fixedly connected, when the lock head retracts, the spring will be bent in addition to deformation, affecting the service life; in later versions, the lock head and the spring are separated, the spring is movably abutted on the lock head, and the abutment of the lock head is flat, the abutment of the spring and the lock head is unstable, sometimes point contact and sometimes surface contact, making the hand feeling when operating the hand control very poor, especially when rotating in different directions, the hand feeling of the rotating hand control is obviously different; in the present scheme, the abutment of the lock head is arc-shaped, and the spring and the abutment are always in point contact during the floating process of the lock head, making the clockwise and counterclockwise rotation have good hand feeling.
[0008] As a preferred, the moving piece is provided with an embedding groove, and the spring is U-shaped and embedded in the embedding groove; a window is formed in the moving piece beside the embedding groove, the lock head is slidably arranged in the window; the embedding groove is closer to the window, and the width of the embedding groove is larger. One end of the U-shaped spring is embedded in the moving piece, and the other end of the U-shaped spring is unfolded outward at the window to provide the lock head with outward elastic force, and the shape of the embedding groove provides the spring with a deformation space near the window.
[0009] As a preferred, the embedding groove is formed towards the mounting seat. The mounting seat provides a limit for the spring and the lock head, preventing the spring and the lock head from falling out of the moving piece.
[0010] As a preferred, the control mechanism further comprises a pull wire assembly, the pull wire assembly is arranged in the base; the moving piece is further provided with a pull wire groove on the same side of the embedding groove, and the pull wire assembly is arranged in the pull wire groove. The control mechanism takes the hand control as an operating member, transmits the control through the switching subassembly, and finally takes the pull wire assembly as a trigger member to switch the state of the movable component on the base.
[0011] As a preferred, the mounting seat is further provided with a pull wire entry groove, and the pull wire assembly enters the pull wire groove of the moving piece through the pull wire entry groove.
[0012] As preferred, the hand control assembly comprises a first hand control and a second hand control coaxially arranged on the base, the first hand control is sleeved on the second hand control; the switching assembly comprises a mounting seat, a first moving part and a second moving part, the mounting seat comprises a first mounting slot and a second mounting slot spaced apart from each other, the first mounting slot and the second mounting slot are arranged along the axial direction of the hand control assembly, the first moving part is arranged in the first mounting slot, the second moving part is arranged in the second mounting slot, the first hand control is connected with the first moving part and moves in linkage, the second hand control is connected with the second moving part and moves in linkage. The double control of the single hand control assembly is realized. The clamping slot and the pull wire entering slot are communicated with the mounting slot, and the window, the embedding slot and the pull wire slot are also communicated with the mounting slot. The first hand control, the second hand control, the first moving part and the second moving part are coaxially arranged.
[0013] As preferred, the second hand control comprises a handle and a connecting rod synchronously rotating with the handle, the handle protrudes from the first hand control, and the connecting rod passes through the first hand control and the first moving part and is connected with the second moving part. The handle of the second hand control and the second hand control can be operated by the user, and the connecting rod of the second hand control can pass through the first hand control and the first moving part and synchronously rotate with the second moving part.
[0014] As preferred, the connecting rod and the second moving part are connected by a screw.
[0015] As preferred, the first hand control is a sleeve part.
[0016] As preferred, the end of the first hand control close to the first moving part is provided with a protruding key, and a key groove is formed on the first moving part, and the protruding key is inserted into the key groove. The protruding key and the key groove cooperate to realize the synchronous rotation of the first hand control and the first moving part.
[0017] The design starting point, concept and beneficial effects of the utility model with the above technical scheme are:
[0018] A control mechanism has been developed before, a rotating hand control drives the moving part to move, an integral spring and a lock head are arranged in the moving part, and the same effect is achieved, but the integral spring and the lock head undoubtedly increase the manufacturing cost, and because the lock head and the spring are fixedly connected, when the lock head retracts, the spring will be bent in addition to deformation, affecting the service life; in the later version, the lock head and the spring are separated, the spring is abutted on the lock head in a movable manner, and the abutting part of the lock head is flat, the abutment between the spring and the lock head is unstable, sometimes point contact and sometimes surface contact, so that the hand feeling when operating the hand control is very poor, especially when rotating in different directions, the hand feeling of the rotating hand control is obviously different; in the present scheme, the abutting part of the lock head is changed into an arc shape, and the spring and the abutting part are always in point contact during the floating process of the lock head, so that the clockwise and counterclockwise rotation both have good hand feeling. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1The utility model discloses a control mechanism's three-dimensional structure schematic diagram in the embodiment of the utility model;
[0020] Figure 2 The utility model discloses a three-dimensional structure schematic diagram of hand control assembly, switching assembly, stay wire assembly assembly in the embodiment of the utility model;
[0021] Figure 3 The utility model discloses a three-dimensional structure schematic diagram of the abutment of the elastic sheet and the lock head in the embodiment of the utility model;
[0022] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of the lock head with arc abutment part in the embodiment of the utility model;
[0023] Figure 5 The utility model discloses an explosion drawing of hand control assembly in the embodiment of the utility model;
[0024] Figure 6 The utility model discloses a three-dimensional structure schematic diagram of the first moving part setting in the mounting seat in the embodiment of the utility model;
[0025] Figure 7 The utility model discloses a three-dimensional structure schematic diagram of the second moving part setting in the mounting seat in the embodiment of the utility model;
[0026] Figure 8 The utility model discloses a three-dimensional structure schematic diagram of the abutment of the elastic sheet and the lock head setting on the first moving part in the embodiment of the utility model;
[0027] Figure 9 The utility model discloses a three-dimensional structure schematic diagram of the first moving part in the embodiment of the utility model.
[0028] The utility model discloses a three-dimensional structure schematic diagram of the first moving part in the embodiment of the utility model. Specific implementation
[0029] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific implementation ways. It should be explained that the embodiment of the application and the features in the embodiment can be combined mutually in the case of not conflicting.
[0030] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the protection scope of the utility model is not limited by the following disclosed specific embodiment.
[0031] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] The specific implementation of this utility model is as follows:
[0033] like Figures 1-4 As shown, this utility model provides a control mechanism for state switching, including a base 1, a manual control component 2, and a switching component. The switching component includes a mounting base 3 and at least one moving part. The mounting base 3 is disposed on the base 1, the moving part is rotatably disposed on the mounting base 3, and the manual control component 2 is rotatably disposed on the base 1. The manual control component 2 is connected to and linked with the moving part. The moving part is provided with a spring piece 6 and a locking head 8. The mounting base 3 is provided with at least two slots 31. The locking head 8 is telescopically disposed on the moving part. The spring piece 6 is configured to abut against the locking head 8 and provide the locking head 8 with a spring force toward the mounting base 3. The locking head 8 includes an abutting part 81 and a locking part 82. The locking part 82 locks into the slot 31, and the abutting part 81 abuts against the spring piece 6. The abutting part 81 is arc-shaped. When the manual control component 2 controls the moving part to rotate, causing the locking part 82 to switch between slots 31, the mechanism controls the state switching.
[0034] A control mechanism has been developed previously, in which rotating the hand control drives the movement of a moving part. The moving part incorporates an integrated spring and a lock, which serve the same purpose. However, the integrated spring and lock undoubtedly increases manufacturing costs. Moreover, since the lock and spring are fixedly connected, the spring is subject to deformation and bending when the lock retracts, affecting its service life. Later versions separated the lock and spring, with the spring movably abutting against the lock. However, the abutting part of the lock is flat, and the contact between the spring and the lock is unstable, sometimes point contact and sometimes surface contact, resulting in a poor feel when operating the hand control, especially when rotating in different directions. In this solution, the abutting part 81 of the lock 8 is changed to an arc shape. During the floating process of the lock 8, the spring 6 and the abutting part 81 are always in point contact, providing a good feel for both clockwise and counterclockwise rotation.
[0035] Specifically, such as Figure 1 , 2 As shown, the base 1 is an upward-opening bottom shell in the chassis and serves as the main support for the control mechanism. The hand control component 2 is inserted into the base 1 and protrudes outward from the base 1 for user operation. The switching component is located inside the base 1. In addition, the control mechanism also includes a pull cable component 11, which is located in the base 1. The control mechanism uses the hand control as the operating element, the switching component to transmit control, and finally the pull cable component 11 as the trigger to switch the state of the movable parts on the base 1.
[0036] like Figure 3 ,4 As shown in Figures 8 and 9, a groove 7 is provided on the moving part, and the U-shaped spring piece 6 is embedded in the groove 7; a window 9 is provided on the moving part next to the groove 7, and the lock head 8 is slidably disposed in the window 9; the closer the groove 7 is to the window 9, the wider its width becomes; the groove 7 is opened towards the mounting base 3, and the mounting base 3 also provides a limit for the spring piece 6 and the lock head 8 to prevent them from falling out of the moving part; one end of the U-shaped spring piece 6 is embedded in the moving part, and the other end extends outward at the window 9 to provide an outward elastic force to the lock head 8, and the shape of the groove 7 also provides deformation space for the spring piece 6 near the window 9.
[0037] In addition, a pull wire groove 10 is provided on the same side of the groove 7 for the moving part, and the pull wire assembly 11 is disposed in the pull wire groove 10; a pull wire inlet groove 34 is also provided on the mounting base 3, and the pull wire assembly 11 enters the pull wire groove 10 of the moving part through the pull wire inlet groove 34; after the pull wire assembly 11 is engaged in the pull wire groove 10, the movement of the moving part will drive the pull wire assembly 11 to tighten or loosen, thereby realizing the control of the movable part.
[0038] Furthermore, such as Figures 5-9 As shown, the hand control component 2 includes a first hand control 21 and a second hand control 22, both rotatably mounted on the base 1, with the first hand control 21 sleeved on the second hand control 22; the switching component includes a mounting base 3, a first moving component 4, and a second moving component 5. The mounting base 3 includes a first mounting groove and a second mounting groove spaced apart from each other, arranged axially along the hand control component 2. The first moving component 4 is disposed in the first mounting groove, and the second moving component 5 is disposed in the second mounting groove. The first hand control 21 is connected in parallel with the first moving component 4. The second hand control 22 is connected and linked with the second moving part 5; the first hand control 21, the second hand control 22, the first moving part 4, and the second moving part 5 are all arranged coaxially; the card slot 31 and the pull wire entry slot 34 are connected to the mounting slot, and the window 9, the recessed slot 7, and the pull wire slot 10 are also connected to the mounting slot; the hand control component 2 includes two hand controls, which control the two moving parts respectively, but in terms of appearance, there is only a single hand control component 2, realizing dual control of a single hand control component 2, which can be applied to the state switching of two different movable parts, making it more practical.
[0039] The first hand control 21 is a sleeve member, the first hand control 21 is directly rotatably inserted on the base 1, the end of the first hand control 21 close to the first moving part 4 is provided with a protruding key 211, and the protruding key 211 is located in the interior of the base 1 and does not affect the rotation of the first hand control 21 on the base 1; the first moving part 4 is provided with a key groove 41, the first hand control 21 is also inserted in the first moving part 4, and the protruding key 211 is inserted in the key groove 41; the protruding key 211 and the key groove 41 are matched to realize the synchronous rotation of the first hand control 21 and the first moving part 4; the second hand control 22 comprises a handle 221 and a connecting rod 222 which rotates synchronously with the handle 221, the handle 221 protrudes from the first hand control 21, the connecting rod 222 is connected with the second moving part 5 after penetrating through the first hand control 21 and the first moving part 4, and the connecting rod 222 is connected with the second moving part 5 through a screw; the handle 221 of the second hand control 22 and the second hand control 22 can be operated by the user, and the connecting rod 222 of the second hand control 22 can rotate synchronously with the second moving part 5 after penetrating through the first hand control 21 and the first moving part 4.
Claims
1. A control mechanism for state switching, characterized by, The device comprises a base, a hand control assembly and a switching assembly, the switching assembly comprises a mounting seat and at least one moving part, the mounting seat is arranged on the base, the moving part is rotationally arranged on the mounting seat, the hand control assembly is rotationally arranged on the base, the hand control assembly is connected with the moving part and is linked with the moving part; the moving part is provided with a spring plate and a lock head, the mounting seat is provided with at least two clamping grooves, the lock head is arranged on the moving part in an extendible manner, the spring plate is arranged to abut against the lock head and give the lock head an elastic force towards the mounting seat; the lock head comprises an abutting part and a clamping part, the clamping part is clamped with the clamping groove, the abutting part abuts against the spring plate, and the abutting part is in a circular arc shape; when the hand control assembly controls the moving part to rotate to switch the clamping part in the clamping groove, the mechanism controls the switching of the state.
2. The control mechanism for state switching according to claim 1, characterized in that: The moving part is provided with an embedding groove, the spring plate is in a U shape and is embedded in the embedding groove; the moving part is provided with a window beside the embedding groove, the lock head is arranged in the window in a sliding manner; the closer the embedding groove is to the window, the larger the width of the embedding groove is.
3. The control mechanism for state switching according to claim 2, characterized in that: The embedding groove is arranged towards the mounting seat.
4. The control mechanism for state switching according to claim 3, characterized in that: The device further comprises a pull wire assembly, the pull wire assembly is arranged in the base; the moving part is further provided with a pull wire groove on the same side of the embedding groove, and the pull wire assembly is arranged in the pull wire groove.
5. The control mechanism for state switching according to claim 4, characterized in that: The mounting seat is also provided with a pull wire entering groove, and the pull wire assembly enters the pull wire groove of the moving part from the pull wire entering groove.
6. The control mechanism for state switching according to claim 1, wherein: The hand control assembly comprises a first hand control and a second hand control which are rotationally arranged on the base, the first hand control is sleeved on the second hand control; the switching assembly comprises a mounting seat, a first moving part and a second moving part, the mounting seat comprises a first mounting groove and a second mounting groove which are spaced apart from each other, the first mounting groove and the second mounting groove are arranged in an axial direction of the hand control assembly, the first moving part is arranged in the first mounting groove, the second moving part is arranged in the second mounting groove, the first hand control is connected with the first moving part and is linked with the first moving part, and the second hand control is connected with the second moving part and is linked with the second moving part.
7. The control mechanism for state switching according to claim 6, characterized in that: The second hand control comprises a handle and a connecting rod which is rotationally arranged with the handle, the handle protrudes from the first hand control, and the connecting rod is connected with the second moving part after penetrating through the first hand control and the first moving part.
8. The control mechanism for state switching according to claim 7, characterized in that: The connecting rod and the second moving part are connected by a screw.
9. The control mechanism for state switching according to claim 6, wherein: The first hand control is a sleeve part.
10. The control mechanism for state switching according to claim 6, wherein: The end of the first hand control close to the first moving part is provided with a protruding key, and the first moving part is provided with a key groove, and the key is inserted into the key groove.