Multifunctional foot switch for dental unit

Abstract

The utility model provides a multifunctional foot switch for a dental treatment machine, and belongs to the technical field of medical instruments. Comprising a bottom plate and a housing, a water control air switch and a scrap blowing air switch are arranged on the front portion of the base plate, a main control valve assembly is arranged in the middle of the base plate, a pedal is arranged on the rear portion of the base plate, the rear side of the pedal is hinged to the base plate, a transmission mechanism is arranged between the lower portion of the pedal and the base plate, and the main control valve assembly is controlled to be opened through the transmission mechanism when the pedal is treaded. The housing is fixedly connected to the bottom plate, the left button, the right button and the lifting rod are arranged at the front part of the upper surface of the housing, and the four-way composite control switch and the dental chair control switch are respectively arranged on the left and right sides of the housing. The single water spraying function of the mobile phone is realized, and the wound surface is convenient to clean in the treatment process; when the pedal is treaded, the valve element of the main control valve assembly is pushed through the roller, the connecting rod and the push rod, the valve element is prevented from being damaged by lateral force, and the service life is prolonged; the soft lifting rod is adopted, so that the lifting rod and the dental chair housing are prevented from being accidentally extruded and damaged in the descending process of the dental chair.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a multifunctional foot switch for a dental treatment machine. BACKGROUND

[0002] At present, dental treatment machines (including dental chairs) are mainly controlled by foot switches, and in order to avoid cross infection during the treatment process, foot switches are used as much as possible to control the actions and other related functions of the dental treatment machines (including dental chairs). Most of the existing foot switches have relatively simple functions, and many functions still need to be operated by the doctors on the control panel of the treatment machine by hand, which increases the risk of cross infection during the treatment process and may cause some unnecessary safety hazards. Therefore, the foot switch of the dental treatment machine needs to be improved. SUMMARY

[0003] The utility model solves the technical problem: provide a kind of multifunctional foot switch for dental treatment machine, the utility model purposes are in to provide a kind of multifunctional foot switch, it is convenient to realize the control of cold light lamp, dental handpiece driving gas, dental chair lifting and pitching and dental chair expectoration position, first-aid position and other chair positions by foot switch.

[0004] To achieve the above object, the utility model adopts the technical scheme of:

[0005] The multifunctional foot switch for the dental treatment machine includes a bottom plate and a cover shell. A water control gas switch and a scrap blowing gas switch are arranged on the front of the upper surface of the bottom plate. A main control valve assembly is arranged on the middle of the upper surface of the bottom plate. A pedal is arranged on the rear of the upper surface of the bottom plate. The rear edge of the pedal is hingedly connected to the bottom plate. A transmission mechanism is arranged between the lower part of the pedal and the bottom plate. The main control valve assembly is opened by the transmission mechanism when the pedal is stepped on. The cover shell is fixedly connected to the bottom plate. A left button, a right button and a lifting rod are arranged on the upper surface of the cover shell. A four-way composite control switch and a dental chair control switch are arranged on the left and right sides of the cover shell.

[0006] In the further limitation of the above scheme, the rear edge of the pedal is connected to the bottom plate through a pedal shaft and a pedal fixing seat. The pedal fixing seat is fixedly connected to the rear edge of the bottom plate. The pedal shaft is fixed to the pedal fixing seat. The pedal is movably sleeved with the pedal shaft.

[0007] In the further limitation of the above scheme, the transmission mechanism includes a push rod, a connecting rod assembly and a roller. The connecting rod assembly is composed of two connecting rods. The two connecting rods are connected through a pin shaft, and the pin shaft is connected with the roller. The rear end of the connecting rod assembly is hingedly connected to the bottom plate. The front end of the connecting rod assembly is connected with the push rod. The push rod is slidingly connected in a guide groove on the bottom plate. The push rod slides forward to push the valve rod of the main control valve assembly to open.

[0008] Further, the bottom plate is provided with a pedal torsion spring, and the elastic force of the pedal torsion spring acts on the pedal to reset the pedal.

[0009] Further, the four-way composite control switch and the dental chair control switch are fixed on the inner wall of the cover shell, and the control parts thereof are extended outside the cover shell for being operated by feet.

[0010] Further, the left button, the right button and the lifting rod are made of soft material.

[0011] Further, the bottom plate is provided with a cushion.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. In the scheme, the roller, the connecting rod assembly and the push rod are used to transition and transfer the stepping force between the pedal and the main control valve assembly, only axial force is applied to the valve rod of the main control valve assembly, the radial force of the valve rod during stepping is eliminated, the valve rod is more stable during stepping, the service life of the main control valve assembly is increased, and the failure rate is reduced.

[0014] 2. In the scheme, the pedal is used in cooperation with the water control gas switch, the mobile phone can realize water mist spraying, normal treatment, water spraying of the mobile phone, and cleaning of the wound surface during treatment.

[0015] 3. In the scheme, the four-way composite control switch function is added to the foot switch, the sputum spitting position and the chair position function, the water flushing, the mouthwash water and the cold light lamp switch can be realized.

[0016] 4. In the scheme, the lifting rod is made of soft material, and the irreversible deformation or breakage of the lifting rod caused by being pressed during the descent of the dental chair can be avoided.

[0017] 5. The scheme has simple structure, convenient installation and maintenance, saves time, improves work efficiency, increases the function and reliability of the foot switch, and reduces the risk of cross infection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a structure front view of the utility model;

[0020] Figure 3 It is a structure side view of the utility model;

[0021] Figure 4 It is a structure front view of the utility model without the cover shell;

[0022] Figure 5The structure side view after the shell is removed in the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] It should be noted that in this paper, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a..." does not exclude the presence of another identical element in the process, method, article or device including the element.

[0026] Please refer to Figures 1-5 for detailed description of the embodiments of the utility model.

[0027] Embodiment: the multifunctional foot switch for dental treatment machine, as shown in Figures 1-4 , including bottom plate 9 and shell 3;The water control gas switch 8 and the dust blowing gas switch 17 are fixedly arranged on the front of the bottom plate 9, the main control valve assembly 16 is arranged on the middle of the bottom plate 9, the pedal 4 is arranged on the rear of the bottom plate 9, the pedal 4 is hinged to the bottom plate 9, the transmission mechanism is arranged between the lower part of the pedal 4 and the bottom plate 9, and the main control valve assembly 16 is opened by the transmission mechanism when the pedal 4 is stepped;The shell 3 is fixedly connected on the bottom plate 9, the left button 1, the right button 6 and the lifting rod 7 are fixedly connected on the front of the shell 3, and the four-way composite control switch 2 and the dental chair control switch 5 are fixedly arranged on the left and right sides of the shell 3.

[0028] In this embodiment, the pedal 4 is pressed to control the opening and closing of the main control valve assembly 16, and in cooperation with the water control air switch 8, the functions such as water spraying and mist spraying during dental treatment can be realized. When the water control air switch 8 is in the open state, the pedal 4 is pressed to open the main control valve assembly 16, so that the handpiece (dental drill) can realize the function of spraying mist, and the handpiece can realize the function of spraying mist to perform normal treatment. When the water control air switch 8 is in the closed state, the pedal 4 is pressed to open the main control valve assembly 16, so that the handpiece can realize the function of spraying water, and the wound can be cleaned in time during treatment.

[0029] In this embodiment, the four-way composite control switch 2 can be set to the sputum position according to user needs, so that the function of the chair position can be realized by one key, or it can be set to other function switches of the dental treatment machine, such as the water flushing switch, the mouthwash switch, the cold light lamp switch, etc.

[0030] In a specific embodiment, the rear edge of the pedal 4 is connected to the bottom plate 9 through the pedal shaft 14 and the pedal fixing seat 15, the pedal fixing seat 15 is fixedly connected to the rear edge of the bottom plate 9, the pedal shaft 14 is fixed to the pedal fixing seat 15, and the pedal 4 is movably sleeved with the pedal shaft 14.

[0031] In this embodiment, the pedal 4 is connected to the bottom plate 9 through the pedal shaft 14 and the pedal fixing seat 15, which can ensure that the pedal 4 rotates around the connection point, and realizes the functions of pressing and resetting the pedal.

[0032] In a specific embodiment, referring to Figures 4-5 As shown in the figure, the transmission mechanism includes a push rod 10, a connecting rod assembly 11, and a roller 12. The connecting rod assembly 11 is composed of two connecting rods, the two connecting rods are connected through a pin shaft, and the pin shaft is connected with the roller 12. The rear end of the connecting rod assembly 11 is hinged to the bottom plate 9, and the front end of the connecting rod assembly 11 is connected with the push rod 10. The push rod 10 is slidingly connected in a guide groove on the bottom plate 9. When the push rod 10 slides forward along the guide groove on the bottom plate 9, it pushes the valve rod of the main control valve assembly 16, thereby controlling the opening of the main control valve assembly 16.

[0033] In this embodiment, when the pedal 4 is pressed, the action is transmitted to the valve rod of the main control valve assembly 16 through the roller, the connecting rod assembly, and the push rod. The push rod slides along the guide groove on the bottom plate 9 to control the opening and closing of the main control valve assembly 16, so that the valve core only receives axial force for reciprocating movement, avoiding the influence of radial force on the valve core, and prolonging the service life of the valve.

[0034] In a specific embodiment, a pedal torsional spring 13 is arranged on the bottom plate 9, and the elastic force of the pedal torsional spring 13 acts on the pedal 4 to reset the pedal 4.

[0035] In the embodiment, the bottom plate is provided with a pedal torsion spring, and the pedal can be pushed back to the original position by the pedal torsion spring when the pedal is loosened, the main control valve assembly is closed, and the push rod and the connecting rod assembly are reset by the valve rod in the main control valve assembly under the internal elastic force.

[0036] In a specific embodiment, referring to Figures 2-3 As shown, the four-way composite control switch 2 and the dental chair control switch 5 are fixed to the inner wall of the cover 3, and the control parts thereof extend outside the cover 3 for being stepped by feet.

[0037] In the embodiment, the four-way composite control switch is added to the foot switch, and the functions of the spitting position of the dental chair, the flushing of the basin, the mouthwash, and the cold light switch can be realized.

[0038] Preferably, the left button 1, the right button 6, and the lifting rod 7 are all made of soft material. The soft material has high resilience, and can prevent the foot switch lifting rod and the cover of the dental treatment chair from being squeezed, bent, or even broken when the dental treatment chair is lowered.

[0039] In a specific embodiment, the bottom plate 9 is provided with a cushion 18 for damping the entire foot switch.

[0040] The utility model from the outside looks, it is by bottom plate, cover, pedal, left button, right button, four-way composite control switch, dental chair control switch and lifting rod etc., wherein four-way composite control switch can be set as treatment machine flush basin switch, mouthwash switch, cold light switch and dental chair spitting position. The water control gas switch, the blowing scrap gas switch, the roller, the connecting rod, the push rod, the pedal and the pedal spring are installed on the bottom plate in the cover interior, when stepping down the pedal, the pedal pushes the valve core of main control valve assembly through the roller, the connecting rod, the push rod, realizes the spray and drive of mobile phone (dental drill). The pedal torsion spring is arranged on the bottom plate, when loosening the pedal, the pedal resets, the push rod does linear reciprocating motion in the guide groove of the bottom plate, can avoid making the valve rod receive lateral force, increases the service life of valve. The whole device structure is relatively simple, and the installation and maintenance are convenient, save time, improve work efficiency, increase the function and reliability of foot switch, reduce the risk of cross infection.

[0041] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0042] Furthermore, it should be understood that although the description is made according to the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and the person skilled in the art should understand the description as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the person skilled in the art can understand.

Claims

1. A multifunction footswitch for a dental treatment unit, characterized in that: It comprises a bottom plate (9) and a cover (3); the front of the bottom plate (9) is provided with a water control air switch (8) and a blowing scrap air switch (17), the middle of the bottom plate (9) is provided with a main control valve assembly (16), the rear of the bottom plate (9) is provided with a pedal (4), the rear of the pedal (4) is hinged to the bottom plate (9), a transmission mechanism is arranged between the lower part of the pedal (4) and the bottom plate (9), the pedal (4) is controlled to open the main control valve assembly (16) through the transmission mechanism when it is stepped; the cover (3) is fixedly connected to the bottom plate (9), the front of the cover (3) is provided with a left button (1), a right button (6) and a lifting rod (7), the left and right sides of the cover (3) are respectively provided with a four-way composite control switch (2) and a dental chair control switch (5).

2. The multifunction footswitch for a dental treatment unit according to claim 1, characterized in that: The rear of the pedal (4) is connected to the bottom plate (9) through a pedal shaft (14) and a pedal fixing seat (15), the pedal fixing seat (15) is fixedly connected to the rear of the bottom plate (9), the pedal shaft (14) is fixed to the pedal fixing seat (15), and the pedal (4) is movably sleeved with the pedal shaft (14).

3. The multifunction footswitch for dental treatment unit according to claim 1, wherein: The transmission mechanism comprises a push rod (10), a connecting rod assembly (11) and a roller (12), the connecting rod assembly (11) is composed of two groups of connecting rods, the two groups of connecting rods are connected through a pin shaft, and the pin shaft is connected with the roller (12), the rear end of the connecting rod assembly (11) is hinged to the bottom plate (9), the front end of the connecting rod assembly (11) is connected with the push rod (10), the push rod (10) is slidingly connected in a guide groove on the bottom plate (9), and the push rod (10) slides forward to push the valve rod of the main control valve assembly (16) to open it.

4. The multifunction footswitch for dental treatment unit according to claim 1, wherein: The bottom plate (9) is provided with a pedal torsional spring (13), and the elastic force of the pedal torsional spring (13) acts on the pedal (4) to reset the pedal (4).

5. The multifunction footswitch for dental treatment unit according to claim 1, wherein: The four-way composite control switch (2) and the dental chair control switch (5) are fixed to the inner wall of the cover (3), and the control parts thereof extend out of the cover (3) for foot stepping.

6. The multifunction footswitch for a dental treatment unit according to claim 1, wherein: The left button (1), the right button (6) and the lifting rod (7) are all made of soft material.

7. The multifunction footswitch for a dental treatment unit according to claim 1, wherein: The bottom plate (9) is provided with a gasket (18) on the lower surface.

Images