Dental chair with anti-collision structure
By setting a rotatable balance shell and an anti-collision mechanism with elastic members and micro switches on the outside of the rack of the dental chair, the safety problem of collision obstacles when adjusting the height of the dental chair is solved, and safety performance and convenience of use are improved.
Patent Information
- Application Number
- CN202421578332.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-04
AI Technical Summary
When adjusting the height of existing dental chairs, if there is an obstacle below or the patient's knee is placed under the dental chair, it is easy to damage the equipment or injure the person, and the safety performance is poor.
A dental chair with an anti-collision structure is designed, and a rotatable balance shell is provided on the outside of the frame body, and an elastic member and a micro switch are provided on the inside of the balance shell. When the tooth chair is lowered, after the balance shell touches the external object, the micro switch triggers, and the control lifting mechanism stops or reverses to avoid collision.
Through the design of the anti-collision mechanism, the safety performance of the dental chair is improved, equipment damage and personal injury are avoided, and it is more convenient to use.
Smart Images
Figure CN222777465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dental instruments and equipment, in particular to a dental chair with an anti-collision structure. Background Art
[0002] Oral health is an important part of overall health. Various oral diseases not only reduce people's quality of life, but are also closely related to various systemic diseases throughout the body. With the improvement of people's living standards and oral health awareness, the frequency of people receiving oral treatment has gradually increased. Dental chairs are essential medical equipment for oral treatment, which are used by dentists to diagnose and treat patients and provide a comfortable medical environment for oral patients. When existing dentists adjust the height of reclining chairs, if there are obstacles under the dental chair or the knees are accidentally placed under the dental chair, it is easy to damage the equipment or injure people during the lowering process, and the safety performance is poor. Utility Model Content
[0003] In order to solve the technical defects mentioned in the above background technology, the purpose of the utility model is to provide a dental chair with an anti-collision structure.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A dental chair with an anti-collision structure, which comprises a base, a support frame rotatably arranged with the base, a recliner arranged at the upper end of the support frame, a lifting mechanism for controlling the rotation of the support frame, and an anti-collision mechanism arranged on the back side of the support frame; at least one group of the anti-collision mechanisms is provided, the support frame comprises a frame body and a balancing shell, the balancing shell is rotatably connected to the side of the frame body facing the ground; the anti-collision mechanism comprises an elastic member and a micro switch; one end of the elastic member is fixed to the frame body, and the other end of the elastic member passes through the balancing shell; the micro switch is arranged on one side of the frame body for controlling the operating state of the lifting mechanism; in the initial state, a gap is arranged between the micro switch and the balancing shell; when the balancing shell collides with an external object, the balancing shell rotates toward one side of the frame body, the micro switch is collidingly connected with the balancing shell, and the micro switch controls the lifting mechanism to stop or reverse operation.
[0006] By adopting the above technical solution, a rotatable balance shell is arranged on the outside of the frame, and an elastic member and a micro switch are arranged on the inside of the balance shell. When the dental chair is lowered, if the outside of the balance shell hits an obstacle, the balance shell rotates a certain amplitude and hits the micro switch, and the micro switch is triggered to stop the lifting mechanism or reverse the operation to avoid further collision with the obstacle, thereby improving safety performance, protecting the equipment, and making it more convenient to use.
[0007] Furthermore, the elastic member includes a screw and a spring. One end of the screw is fixedly connected to the frame, and the other end of the screw is abutted against the outer side of the balancing shell to fix the balancing shell. The spring is sleeved on the screw, and the spring is located between the balancing shell and the frame. It is convenient for the balancing shell to automatically return to its initial state after impact, which is more convenient to use.
[0008] Furthermore, a fixing plate is arranged on the frame, one end of the screw rod is provided with an external thread, and the screw rod is threadedly connected with the fixing plate. The installation and disassembly are convenient, and the length of the screw rod can be adjusted to adjust the distance between the balance housing and the micro switch, thereby improving the compatibility of the equipment.
[0009] Furthermore, the spring is configured as a tower-shaped structure, and the end of the spring with a larger end surface area is connected to the balance shell, thereby increasing the contact area with the balance shell to improve the force effect, thereby improving the sensitivity and extending the service life of the spring.
[0010] Furthermore, the balancing shell is configured as a frame-type structure, and the ends of the two side plates of the balancing shell close to the base are both rotatably connected to the frame body through a rotating shaft, and the other end of the balancing shell is provided with a movable groove, and the end of the elastic member away from the frame body passes through the movable groove. The elastic member and the rotating end of the balancing shell are arranged at both ends, and the balancing shell rotates at a smaller angle, and the displacement range of the other end is larger. The micro switch is timely punished to improve the sensitivity.
[0011] Furthermore, the back plate of the balancing shell is arranged to protrude toward a side away from the frame, so that obstacles can be identified in advance, which is beneficial to protecting the equipment.
[0012] Furthermore, the anti-collision mechanism is provided with two groups, and one group of the anti-collision mechanism is provided on both sides of the end of the balancing shell close to the recliner, so as to improve the sensitivity and thus improve the safety performance.
[0013] Furthermore, the lifting mechanism includes a lifting cylinder, the output shaft of the lifting cylinder is rotatably connected to the base, the cylinder seat of the lifting cylinder is fixedly connected to one end of the frame close to the recliner, and the micro switch controls the lifting cylinder to stop moving or extend through a control mechanism, thereby improving safety.
[0014] In summary, the beneficial effects of the utility model are:
[0015] The utility model arranges a rotatable balance shell on the outside of the frame, and an elastic member and a micro switch are arranged on the inside of the balance shell. When the dental chair is lowered, if the outside of the balance shell hits an obstacle, the balance shell rotates a certain amplitude and hits the micro switch, and the micro switch is triggered to stop the lifting mechanism or reverse the operation to avoid further collision with the obstacle, thereby improving safety performance, protecting the equipment, and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a dental chair with an anti-collision structure of the utility model.
[0017] Figure 2 It is a structural schematic diagram of a support frame of a dental chair with an anti-collision structure according to the utility model.
[0018] Figure 3 The utility model is a schematic structural diagram of the installation of a balance shell and an anti-collision mechanism of a dental chair with an anti-collision structure.
[0019] Figure 4 It is a structural schematic diagram of another perspective of the installation of the balance shell and the anti-collision mechanism of the dental chair with an anti-collision structure of the utility model.
[0020] Figure 5 It is a rear view of the balance shell of the dental chair with an anti-collision structure of the utility model.
[0021] Description of reference numerals in the figures:
[0022] 1. Dental chair with anti-collision structure; 2. Base; 3. Support frame; 31. Frame; 32. Balance shell; 321. Side panel; 322. Back panel; 323. Avoidance groove; 33. Fixed plate; 34. Rotating shaft; 4. Recliner; 5. Lifting cylinder; 6. Anti-collision mechanism; 61. Elastic part; 611. Screw; 612. Spring; 613. Nut; 62. Micro switch. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0025] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0026] The following is combined with Figure 1-5 , the embodiments of the utility model are further described in detail.
[0027] A dental chair 1 with an anti-collision structure, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a base 2, a support frame 3 rotatably arranged with the base 2, a recliner 4 arranged at the upper end of the support frame 3, a lifting mechanism for controlling the rotation of the support frame 3, and an anti-collision mechanism 6 arranged on the back side of the support frame 3. At least one set of anti-collision mechanisms 6 is provided. The support frame 3 includes a frame body 31 and a balancing shell 32. The balancing shell 32 is rotatably connected to the side of the frame body 31 facing the ground. The anti-collision mechanism 6 includes an elastic member 61 and a micro switch 62. One end of the elastic member 61 is fixed on the frame body 31, and the other end of the elastic member 61 passes through the balancing shell 32. The micro switch 62 is arranged on one side of the frame body 31 for controlling the operating state of the lifting mechanism. In the initial state, a gap is arranged between the micro switch 62 and the balancing shell 32. When the balancing shell 32 conflicts with an external object, the balancing shell 32 rotates toward one side of the frame body 31, and the micro switch 62 conflicts with the balancing shell 32, and the micro switch 62 controls the lifting mechanism to stop or reverse operation.
[0028] A rotatable balance shell 32 is arranged on the outside of the frame 31, and an elastic member 61 and a micro switch 62 are arranged on the inside of the balance shell 32. When the dental chair is lowered, if the outside of the balance shell 32 hits an obstacle, the balance shell 32 rotates a certain amplitude and hits the micro switch 62, and the micro switch 62 is triggered to stop the lifting mechanism or reverse the operation to avoid further collision with the obstacle, thereby improving the safety performance, protecting the equipment, and making it more convenient to use.
[0029] In this embodiment, please refer to Figure 2 , Figure 3 , Figure 4 Two groups of anti-collision mechanisms 6 are provided, and one group of anti-collision mechanisms 6 is provided on both sides of one end of the balancing shell 32 close to the recliner 4, which improves the sensitivity and thus improves the safety performance.
[0030] The elastic member 61 includes a screw rod 611 and a spring 612. One end of the screw rod 611 is fixedly connected to the frame 31, and the other end of the screw rod 611 is abutted against the outer side of the balancing shell 32 to fix the balancing shell 32. The spring 612 is sleeved on the screw rod 611, and the spring 612 is located between the balancing shell 32 and the frame 31. It is convenient for the balancing shell 32 to automatically return to the initial state after the impact, and it is more convenient to use.
[0031] A fixing plate 33 is provided on the frame 31, and the fixing plate 33 can be set as an L-shaped structure. An external thread is provided at one end of the screw 611, and the screw 611 is threadedly connected to the fixing plate 33. It is convenient to install and disassemble, and the length of the screw 611 can be adjusted to adjust the distance between the balance shell 32 and the micro switch 62, thereby improving the compatibility of the equipment. Among them, one end of the screw 611 can be threadedly connected to the fixing plate 33, and a nut threadedly connected thereto can also be provided at the threaded end of the screw 611, and the nut is set on the side of the fixing plate 33 away from the spring 612, which is more convenient to install. An enlarged nut 613 is provided at the other end of the screw 611, and the nut 613 limits the balance shell 32 between the nut 613 and the fixing plate 33.
[0032] The spring 612 is configured as a tower structure, and the end of the spring 612 with a larger end surface area is connected to the balance shell 32, which increases the contact area with the balance shell 32 to improve the force effect, thereby improving the sensitivity and extending the service life of the spring 612.
[0033] The elastic member 61 may also be a spring column, a rubber column or other flexible structures.
[0034] In this embodiment, please refer to Figure 4 , Figure 5The balancing shell 32 is set as a frame structure. The two side plates 321 of the balancing shell 32 are connected to the frame 31 through the rotating shaft 34 at one end close to the base 2. The other end of the balancing shell 32 is provided with a movable groove. The end of the elastic member 61 away from the frame 31 passes through the movable groove. The elastic member 61 and the rotating end of the balancing shell 32 are set at both ends. The balancing shell 32 rotates at a smaller angle, and the displacement range of the other end is larger. The micro switch 62 is timely punished to improve the sensitivity.
[0035] The back plate 322 of the balancing shell 32 is protruded toward the side away from the frame 31, so as to identify obstacles in advance and help protect the equipment. The two side plates 321 of the balancing shell 32 cover the frame 31 in the balancing shell 32. Two open avoidance grooves 323 are provided at one end where the balancing shell 32 and the frame 31 rotate, so as to facilitate avoidance with other structures during rotation, making the structure more compact and saving costs. Among them, the inner side edge of the back plate 322 is set corresponding to the micro switch 62, and the inner side of the back plate 322 is set to be concave outward, which can provide installation space for structures such as the micro switch 62, making the structure more compact and saving costs.
[0036] In this embodiment, please refer to Figure 3 The lifting mechanism includes a lifting cylinder 5, the output shaft of the lifting cylinder 5 is rotatably connected to the base 2, the cylinder seat of the lifting cylinder 5 is fixedly connected to the end of the frame 31 close to the recliner 4, and the micro switch 62 controls the lifting cylinder 5 to stop moving or extend through the control mechanism, thereby improving safety.
[0037] When in use, the lifting cylinder 5 is started by the control mechanism, and the output shaft of the lifting cylinder 5 is retracted to drive the support frame 3 to rotate, and the reclining chair 4 thereon is gradually laid flat. When the outer side of the balancing shell 32 abuts against the obstacle, the balancing shell 32 rotates toward one side of the frame body 31, and the inner surface compression spring 612 of the balancing shell 32 abuts against the micro switch 62, so that the micro switch 62 is in a working state, and the micro switch 62 is triggered to control the lifting cylinder 5 to stop moving or extend the output shaft of the lifting cylinder 5 through the control mechanism. In this embodiment, the output shaft of the lifting cylinder 5 is extended to drive the reclining chair 4 to rise, so that the balancing shell 32 is separated from the obstacle. After separation, the balancing shell 32 rotates in the opposite direction under the action of the elastic deformation force of the spring 612 to return to the initial state, the balancing shell 32 is separated from the micro switch 62, the micro switch 62 stops working, and the control mechanism controls the lifting cylinder 5 to stop working.
[0038] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A dental chair (1) with an anti-collision structure, characterized in that: The invention comprises a base (2), a support frame (3) rotatably arranged with the base (2), a reclining chair (4) arranged at the upper end of the support frame (3), a lifting mechanism for controlling the rotation of the support frame (3), and an anti-collision mechanism (6) arranged at the back side of the support frame (3); at least one group of the anti-collision mechanism (6) is provided, the support frame (3) comprises a frame body (31) and a balancing shell (32), the balancing shell (32) is rotatably connected to a side of the frame body (31) facing the ground; the anti-collision mechanism (6) comprises an elastic member (61) and a micro switch (62); one end of the elastic member (61) is fixed On the frame (31), the other end of the elastic member (61) passes through the balancing shell (32); the micro switch (62) is arranged on one side of the frame (31) and is used to control the operating state of the lifting mechanism; in an initial state, a gap is arranged between the micro switch (62) and the balancing shell (32); when the balancing shell (32) contacts with an external object, the balancing shell (32) rotates toward one side of the frame (31), the micro switch (62) contacts and connects with the balancing shell (32), and the micro switch (62) controls the lifting mechanism to stop or reverse operation.
2. The dental chair (1) with an anti-collision structure according to claim 1, characterized in that: The elastic member (61) comprises a screw rod (611) and a spring (612); one end of the screw rod (611) is fixedly connected to the frame (31), and the other end of the screw rod (611) is abutted against the outer side surface of the balancing shell (32) to fix the balancing shell (32); the spring (612) is sleeved on the screw rod (611), and the spring (612) is located between the balancing shell (32) and the frame (31).
3. The dental chair (1) with an anti-collision structure according to claim 2, characterized in that: A fixing plate (33) is provided on the frame body (31), one end of the screw rod (611) is provided with an external thread, and the screw rod (611) is threadedly connected to the fixing plate (33).
4. The dental chair (1) with an anti-collision structure according to claim 2, characterized in that: The spring (612) is configured as a tower-shaped structure, and an end of the spring (612) having a larger end surface area is connected to the balancing shell (32).
5. The dental chair (1) with an anti-collision structure according to claim 1, characterized in that: The balancing shell (32) is configured as a frame-type structure. One end of the two side plates (321) of the balancing shell (32) close to the base (2) is rotatably connected to the frame (31) via a rotating shaft (34). The other end of the balancing shell (32) is provided with a movable groove, and one end of the elastic member (61) facing away from the frame (31) passes through the movable groove.
6. The dental chair (1) with an anti-collision structure according to claim 5, characterized in that: The back plate (322) of the balancing shell (32) is protrudingly disposed toward a side away from the frame (31).
7. The dental chair (1) with an anti-collision structure according to claim 1, characterized in that: The anti-collision mechanism (6) is provided in two groups, and one group of the anti-collision mechanism (6) is provided on both sides of one end of the balancing shell (32) close to the reclining chair (4).
8. The dental chair (1) with an anti-collision structure according to claim 1, characterized in that: The lifting mechanism comprises a lifting cylinder (5), the output shaft of the lifting cylinder (5) is rotatably connected to the base (2), and the cylinder seat of the lifting cylinder (5) is fixedly connected to one end of the frame (31) close to the recliner (4); the micro switch (62) controls the lifting cylinder (5) to stop moving or extend through a control mechanism.