CN216652817U

CN216652817U - Protection mechanism of dental treatment seat

Info

Publication number: CN216652817U
Application number: CN202122929806.7U
Authority: CN
Inventors: 刘彬; 朱建达; 李全
Original assignee: Ningbo Jiangbei Woson Medical Instrument Co ltd
Current assignee: Ningbo Jiangbei Woson Medical Instrument Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-06-03
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a protection mechanism of a dental treatment chair, which comprises a chair lifting seat, wherein a lifting mechanism is arranged in the chair lifting seat, a control mechanism for protection is arranged on the lifting mechanism, the chair lifting seat comprises a touch sensing mechanism, a buffer mechanism and a pressure sensing mechanism, the touch sensing mechanism is electrically connected with the pressure sensing mechanism and an electric control system, the lifting mechanism is arranged in the chair lifting seat, an operator can stop a dental chair at any position during operation, the lifting mechanism is provided with the control mechanism for protection in a matching way, when the chair is stopped to be descended when encountering an obstacle and is changed into descended or control failure is carried out, the chair is automatically powered off and shut down, descending action is blocked, potential safety hazards during use are reduced, internal parts of the dental chair are prevented from being damaged, and the service life of the dental chair is prolonged.

Description

Protection mechanism of dental treatment seat

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a protection mechanism of a dental treatment chair.

Background

With the continuous development of economy, the living standard of people is greatly improved, and more attention is paid to oral health, particularly tooth health, so that dentistry becomes a large department independent of other clinical departments, a large number of dental auxiliary instruments are put into use, a dental comprehensive treatment chair is medical equipment necessary for stomatologists, and since the first electric dental drill appears in the world in 1887, the performance and the intellectualization of a dental treatment machine are greatly improved.

In order to facilitate treatment of dentists and make patients more comfortable to sit, the dental chair generally comprises an automatic adjustment function, including lifting of a chair, tilting of a backrest and the like, in the prior art, more improvements are made for improving comfort of the dental chair, the Chinese patent application number is CN201911129045.8, the patent name is an intelligent dental chair adjusting system and a patent of an adjusting method thereof, and the dental chair information processing system comprises an HIS system, a dental chair information processing system and a dental chair, wherein the dental chair information processing system comprises a dental chair information acquisition module, a dental chair information storage module and a dental chair information transmission module; the HIS system is responsible for acquiring personal basic information of a patient, the dental chair information acquisition module is responsible for acquiring dental chair position information of the patient during initial visit, the dental chair information storage module is responsible for storing the dental chair position information, the dental chair information transmission module is responsible for transmitting the dental chair information to the dental chair, and the dental chair completes automatic adjustment of the chair position according to the received information; through the technical scheme, the intelligent dental chair adjusting system capable of automatically adjusting the dental chair, adapting to different patients, improving the comfort of the patients and the convenience of doctors is provided, the time for patients to see a doctor is shortened, and the efficiency of seeing the doctor is improved.

Although the adjustment function is simplified in the actual use of the control, when the control fails, the seat can continue to lift when an obstacle exists under the seat in the actual use, so that the potential safety hazard exists, the internal parts of the dental chair are damaged, and the service life of the dental chair is shortened.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a protection mechanism of a dental treatment chair, which can protect accidental injury caused by misoperation of the chair and reduce the risk of damage to the dental chair.

In order to solve the technical problem, the utility model is solved by the following technical scheme: the utility model provides a protection machanism of dental treatment seat, includes the seat lift seat, be provided with elevating system in the seat lift seat, be located elevating system on be provided with the control mechanism who is used for the guard action, including touching response mechanism, buffer gear, forced induction mechanism, touching response mechanism with forced induction mechanism is connected with the electrical system electricity, can meet the accidental injury that leads to when protecting the seat maloperation under the condition of barrier when the seat descends.

In the above technical scheme, the buffer mechanism includes the buffer seat and is fixed in pagoda spring on the buffer seat, and the buffer seat is used for fixing pagoda spring, can play the buffering seat.

In the technical scheme, the touch sensing mechanism is fixed on one side of the buffer seat and comprises a belt wheel microswitch.

In the above technical solution, the lifting mechanism includes a driving mechanism, a lifting support, and a lifting connecting rod connected through the lifting support and capable of moving under the driving of the driving mechanism.

In the above technical solution, the lifting link includes a first driving linkage and a second driven linkage arranged in parallel from top to bottom.

In the above technical scheme, the first driving linkage comprises driving connecting rods which are symmetrically connected with the first connecting parts on two sides of the lifting support and connected through the first connecting shafts, and the second driven linkage comprises driven connecting rods which are symmetrically connected with the second connecting parts on two sides of the lifting support and connected through the second connecting shafts.

In the technical scheme, the two groups of buffer mechanisms are symmetrically fixed on the driven connecting rods connected with the two sides of the lifting support respectively.

Among the above-mentioned technical scheme, seat lift seat includes bottom plate, connecting rod housing and guard plate.

In the above technical scheme, the touch sensing mechanism is electrically connected with the driving mechanism and can control the action of the driving mechanism.

Compared with the prior art, the utility model has the following beneficial effects: be provided with elevating system in the seat lift seat, can make the operator dental chair stop in optional position department when the operation, the cooperation is provided with the control mechanism who is used for the guard action on elevating system, can meet the barrier when the seat is down, stops down to change into down or when control became invalid, the seat auto-power-off shut down, blocks down action, potential safety hazard when reducing the use prevents the damage of dental chair internals, prolongs the life of dental chair.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is an exploded view of the structure of the present invention.

Fig. 3 is a schematic structural diagram of the lifting mechanism.

Fig. 4 is a partially enlarged view of portion a of fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, a protection mechanism of a dental treatment chair includes a chair lift 1, wherein the chair lift 1 includes a base plate 11 supporting the entire lift, a link cover 12, and a guard plate 13 under the link cover 12.

The lifting mechanism is arranged in a cavity in the connecting rod housing 12, wherein the lower end of the lifting support 22 extends out of the housing and is fixed with the bottom plate 11, the upper end of the base is connected with the lifting connecting rod 23 through a rotating shaft, the lifting connecting rod 23 is driven by a motor fixed on the bottom plate 11, and the tail end of the driving rod is connected with the lifting connecting rod 23 to drive the whole lifting mechanism to swing around the lifting support 22, so that the lifting action of the dental chair is completed.

Specifically, the lifting link 23 includes a first driving link group and a second driven link group arranged in parallel from top to bottom, wherein the first driving link group includes a first connecting portion 221 with one end symmetrically connected to both sides of the lifting support 22, and a driving link 231 with the other end connected through a first connecting shaft 201, the second driven link group includes a second connecting portion 222 with one end symmetrically connected to both sides of the lifting support 22, and a driven link 232 with the other end connected through a second connecting shaft 202, in order to protect the stability of the link group, a crosspiece 200 parallel to the first connecting shaft 201 and the second connecting shaft 202 is disposed between the two driving links 231 and between the two driven links, and both ends of the first connecting shaft 201 and the second connecting shaft 202 are connected to the housing of the link housing 12.

The driving rod of the driving mechanism 21 is connected to the crosspiece 200 between the two driving links 231, and preferably, the driving rod is connected to the middle position of the crosspiece 200, so that the driving force is balanced to drive the two driving links 231, and the driven link 232 is driven by the link housing 12.

When an obstacle exists below the dental chair in the descending process, one surface of the connecting rod housing 12 facing the bottom plate 11 touches the obstacle, and the control mechanisms 3 symmetrically fixed on the driven connecting rods 232 connected with the two sides of the lifting support 22 start to protect the dental chair.

Firstly, the position touching the obstacle is positioned at the rear end of the connecting rod encloser 12, namely on the rear lower end surface of the seat, at the moment, the buffer mechanism 32 positioned in the connecting rod encloser 12 firstly plays a buffer role on the obstacle so as to slow down the damage to the dental chair, the buffer mechanism 32 is preferably a pagoda spring, of course, other materials can be used, but the contact area of the pagoda spring is larger, the load is large, the rigidity is good, and the rebound effect is better when the dental chair is pressed down to the obstacle; after the contact that is fixed in one side touch induction mechanism 31 of buffer seat 321 is touched afterwards, the signal feeds back to electrical system afterwards, and control actuating mechanism changes down the action, can make the seat direction raise to prevent that the seat from leading to the damage because of the barrier, touching the preferred band pulley micro-gap switch of induction mechanism 31, the response is more sensitive.

Certainly, when the switch is failed, and the control system cannot acquire a control signal, the pressure sensing mechanism 33 is cooperatively arranged on the driven connecting rod 232 provided with only one buffer mechanism 32, and when the pressure sensing mechanism 33 continuously outputs a signal to the control system, the control system can cut off the power supply of the dental chair, so as to ensure secondary protection when the touch sensing mechanism 31 fails.

The principle of the technical scheme is as follows: under actuating mechanism's drive, initiative connecting rod one end is swung around lift support 22, and then drive the elevating movement of dental chair seat frame realization, when the cushion frame up rises, the crane up-swing, when the decline of dental chair seat frame, the initiative connecting rod down-swing, the barrier is touched to the bottom surface as elevating system, buffer gear 32 at first plays the cushioning effect to the barrier, the contact that is fixed in one side touching induction mechanism of buffer seat afterwards is touched the back, the signal feeds back to electrical system afterwards, control actuating mechanism changes down action, can make the seat direction raise, in order to prevent the seat because of the barrier leads to the damage, when reaching control system when the continuous output signal of pressure-sensitive mechanism, control system can cut off the power of dental chair, secondary protection when guaranteeing to touch induction mechanism to lose efficacy.

The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.

Claims

1. The utility model provides a protection machanism of dental treatment seat, includes seat lift seat (1), its characterized in that, be provided with elevating system (2) in seat lift seat (1), be located elevating system (2) on be provided with control mechanism (3) that are used for the guard action, including touching induction mechanism (31), buffer gear (32), forced induction mechanism (33), touch induction mechanism (31) and forced induction mechanism (33) all are connected with the electrical system electricity.

2. A protection mechanism for a dental treatment chair as claimed in claim 1, wherein said cushioning mechanism (32) comprises a cushioning seat (321) and a pagoda spring (322) fixed to said cushioning seat (321).

3. A protection mechanism for dental treatment chair as claimed in claim 2, wherein the touch sensing mechanism (31) is fixed on one side of the buffer base (321) and comprises a wheel micro switch.

4. A protection mechanism for a dental treatment chair according to claim 3, characterized in that the lifting mechanism (2) comprises a driving mechanism (21), a lifting support (22), and a lifting link (23) connected through the lifting support (22) and capable of being actuated by the driving mechanism (21).

5. A protection mechanism for dental treatment chair as claimed in claim 4, wherein said lifting link (23) comprises a first driving linkage and a second driven linkage arranged in parallel from top to bottom.

6. The protection mechanism of a dental treatment chair as claimed in claim 5, wherein the first driving linkage comprises driving links (231) symmetrically connected to the first connection portions (221) at both sides of the lifting support (22) and connected by a first connection shaft (201), and the second driven linkage comprises driven links (232) symmetrically connected to the second connection portions (222) at both sides of the lifting support (22) and connected by a second connection shaft (202).

7. The protection mechanism for dental chair according to claim 5, wherein said buffer mechanisms (32) are provided in two sets, and are symmetrically fixed on the driven links (232) connected to both sides of said lifting support (22).

8. A protection mechanism for a dental treatment chair according to claim 1, wherein the chair lift (1) comprises a base plate (11), a link cover (12) and a fender (13).

9. A protection mechanism for a dental treatment chair according to claim 4, wherein the touch sensing mechanism (31) is electrically connected to the drive mechanism (21).

10. A protective mechanism for a dental treatment chair as claimed in claim 1, wherein the pressure sensing mechanism is a pressure sensor.