A foot-operated valve structure for a dental comprehensive treatment machine

Abstract

The utility model relates to the technical field of medical equipment, and in particular to a foot valve structure of a dental comprehensive treatment machine, comprising a base plate, a foot pedal, a trigger push frame, a valve linear push rod and a foot valve, wherein the foot valve is arranged on the base plate, and the rear end of the foot pedal can be rotatably mounted on the base plate; the trigger push frame is located between the foot valve and the foot pedal, and the length of the foot pedal is greater than the length of the trigger push frame; the rear end of the trigger push frame can be rotatably connected to the lower side of the rear end of the foot pedal, one end of the valve linear push rod is against the front end of the trigger push frame, and the rear end of the valve linear push rod is connected to the foot valve. The utility model adopts a multi-lever valve driving method to amplify the swing amplitude of the foot pedal, and the operator's foot movement can more easily and accurately control the valve opening, so as to greatly improve the reliability of the dental comprehensive treatment machine during dental surgery.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a foot-operated valve structure of a dental comprehensive treatment machine. Background Art

[0002] The dental comprehensive treatment machine integrates the functions of driving dental handpieces, supplying water for cleaning, and lifting and lowering dental chairs, and these functions are controlled by foot-operated switch devices. Most dental handpieces are pneumatic, and the foot-operated switch device controls the working gas flow of the dental handpiece by pushing the air supply valve with a foot pedal, thereby controlling the start and stop and speed of the dental handpiece. In the prior art, the foot pedal of the foot-operated switch device directly acts on the valve core of the air supply valve, and the operation of the air supply valve can be completed by swinging the foot pedal at a small angle. For example, a durable foot valve disclosed in CN218598956U has a mounting frame provided at one end of the extension section of the valve core away from the control section, and a rotating shaft is provided on the mounting frame, and a rotatable pedal is hinged on the rotating shaft, and the pedal can press against the end of the extension section of the valve core away from the valve body. Since it is difficult for the operator to perform fine operation on the foot pedal, it is difficult to accurately control the air supply valve through the foot pedal, and thus the flow of the working gas is difficult to accurately control. Utility Model Content

[0003] The utility model aims to provide a foot-operated valve structure for a dental comprehensive treatment machine, which can operate a foot pedal to accurately control the flow rate of working gas.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A foot valve structure of a dental comprehensive treatment machine comprises a base plate, a foot pedal, a trigger push frame, a valve linear push rod and a foot valve, wherein the foot valve is arranged on the base plate, and the rear end of the foot pedal can be rotatably mounted on the base plate;

[0006] The trigger push frame is located between the foot valve and the foot pedal, and the length of the foot pedal is greater than the length of the trigger push frame;

[0007] The rear end of the trigger push frame can be rotatably connected to the lower side of the rear end of the foot pedal, one end of the valve linear push rod abuts against the front end of the trigger push frame, and the rear end of the valve linear push rod is connected to the foot valve.

[0008] In some embodiments, both sides of the rear end of the trigger push frame are rotatably connected to both sides of the foot pedal respectively, and a supporting surface is provided in the center of the front end of the trigger push frame, and the end of the valve linear push rod is against the supporting surface.

[0009] In some embodiments, the end of the valve linear push rod is provided with a contact arc surface, and the contact surface is an inclined plane with a bottom inclined toward the valve linear push rod;

[0010] The abutting arc surface abuts against the abutting surface.

[0011] In some embodiments, a guide mounting plate is fixed to the bottom plate, and the valve linear push rod is slidably matched with the guide mounting plate.

[0012] In some embodiments, a rotating shaft is provided at the rear end of the foot pedal, a supporting mounting column is provided on the bottom plate, the top of the supporting mounting column has an arc groove, and both ends of the rotating shaft are respectively inserted into the arc grooves of the two supporting mounting columns.

[0013] In some embodiments, a reset member is provided between the foot pedal and the bottom plate, and the reset member is located at one side of the front end of the trigger push frame.

[0014] In some embodiments, the free end of the foot pedal extends outside the base plate, and a limiting pad is provided at the bottom of the free end of the foot pedal.

[0015] In some embodiments, the foot valve structure of the comprehensive dental treatment unit further includes a shell, wherein the shell covers the bottom plate, and the rotating shaft and the supporting mounting column are located inside the shell.

[0016] In some embodiments, a U-shaped handle bar is provided at the rear end of the base plate.

[0017] In some embodiments, the base plate is provided with a seat posture foot control ball cap, a water control button, a seat reset button and a chip blowing button, the seat posture foot control ball cap is located behind the foot pedal, and the water control button, the seat reset button and the chip blowing button are respectively arranged on both sides of the foot pedal.

[0018] The technical solution provided by the utility model may have the following beneficial effects:

[0019] When the foot pedal swings, it drives the trigger push frame to move, and then the trigger push frame pushes the valve linear push rod to move, so that the valve linear push rod pushes the valve core of the valve to move, thereby operating the valve. A multi-lever valve driving method is adopted to amplify the swing amplitude of the foot pedal. The operator's foot movement can more easily and accurately control the opening of the valve, so as to greatly improve the reliability of the dental comprehensive treatment machine during dental surgery and ensure the safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a foot-operated valve structure of a dental comprehensive treatment machine according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the decomposed mechanism of the foot valve structure of the dental comprehensive treatment machine;

[0022] Figure 3 It is a cross-sectional schematic diagram of a foot-operated valve structure of a dental comprehensive treatment machine;

[0023] Figure 4 yes Figure 3 A magnified view of part A;

[0024] Among them, the base plate 1, the guide mounting plate 11, the support mounting column 12, the arc groove 13, the foot pedal 2, the rotating shaft 21, the limit pad 22, the trigger push frame 3, the abutment surface 31, the valve linear push rod 4, the abutment arc surface 41, the foot valve 5, the reset part 6, the shell 7, the U-shaped handle rod 8, the seat posture foot control ball cap 01, the water control button 02, the seat reset button 03, and the chip blowing air button 04. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] Combine the following Figures 1 to 4 , describing a foot-operated valve structure of a dental comprehensive treatment machine according to an embodiment of the utility model.

[0027] A foot valve structure of a dental comprehensive treatment machine comprises a base plate 1, a foot pedal 2, a trigger push frame 3, a valve linear push rod 4 and a foot valve 5, wherein the foot valve 5 is arranged on the base plate 1, and the rear end of the foot pedal 2 can be rotatably mounted on the base plate 1;

[0028] The trigger push frame 3 is located between the foot valve 5 and the foot pedal 2, and the length of the foot pedal 2 is greater than the length of the trigger push frame 3;

[0029] The rear end of the trigger push frame 3 is rotatably connected to the lower side of the rear end of the foot pedal 2 , one end of the valve linear push rod 4 abuts against the front end of the trigger push frame 3 , and the rear end of the valve linear push rod 4 is connected to the foot valve 5 .

[0030] In this technical solution, when the foot pedal 2 swings, it drives the trigger push frame 3 to move, and then the trigger push frame 3 pushes the valve linear push rod 4 to move, so that the valve linear push rod 4 pushes the valve core of the valve to move, thereby operating the valve. The foot pedal part of the foot pedal 2, the rear side plate of the foot pedal 2, the trigger push frame 3 and the valve linear push rod 4 are equivalent to a lever respectively, and a multi-lever valve driving method is adopted to amplify the swing amplitude of the foot pedal 2. The operator's foot movement can more easily and accurately control the opening of the foot valve 5, so as to greatly improve the reliability of the dental comprehensive treatment machine during dental surgery and ensure the safety of the surgery. In addition, the foot valve structure of the dental comprehensive treatment machine of this technical solution has the characteristics of simple structure, quick assembly and reliable transmission.

[0031] Specifically, the foot valve 5 is an air valve, and the foot valve 5 is used to control the rotation speed of the dental handpiece. The opening of the foot valve 5 is precisely controlled through the large swing foot pedal 2, thereby precisely regulating the flow of the dental handpiece working gas. When the foot valve 5 is driven by the foot pedal 2, the trigger push frame 3 is driven to push the valve linear push rod 4 through the conversion of the movement direction of the foot pedal part of the foot pedal 2 and the rear side plate of the foot pedal 2, so that the large angle movement of the foot pedal 2 can precisely control the movement distance of the short stroke valve linear push rod 4.

[0032] In one embodiment of the utility model, the two sides of the rear end of the trigger push frame 3 are rotatably connected to the two sides of the foot pedal 2, and abutment surface 31 is provided in the center of the front end of the trigger push frame 3, and the end of the valve linear push rod 4 abuts against the abutment surface 31. Because the two sides of the rear end of the trigger push frame 3 are rotatably connected to the two sides of the foot pedal 2, the trigger push frame 3 has a large width, and the connection between the connection of the two sides of the rear end of the trigger push frame 3 and the abutment surface 31 is a triangle, which ensures the installation stability of the trigger push frame 3 and high transmission reliability.

[0033] Preferably, refer to Figure 4 , the end of the valve linear push rod 4 is provided with a contact arc surface 41, and the abutting surface 31 is an inclined plane with the bottom inclined toward the valve linear push rod 4; the contact arc surface 41 abuts against the abutting surface 31. The contact arc surface 41 and the abutting surface 31 are in a linear contact state, reducing the friction between the two, so that the valve linear push rod 4 is not easy to shake. Moreover, the abutting surface 31 is an inclined plane with the bottom inclined toward the valve linear push rod 4, which is conducive to triggering the push frame 3 to push the valve linear push rod 4 to make a linear motion in the horizontal direction, and also prevents the contact arc surface 41 from separating from the abutting surface 31.

[0034] In one embodiment of the utility model, the base plate 1 is fixed with a guide mounting plate 11, and the valve linear push rod 4 is slidably matched with the guide mounting plate 11 to guide the movement of the valve linear push rod 4, thereby further ensuring the reliability of the transmission. Specifically, a rotating shaft 21 is provided at the rear end of the foot pedal 2, and a supporting mounting column 12 is provided at the base plate 1. The top of the supporting mounting column 12 has an arc groove 13, and the two ends of the rotating shaft 21 are respectively inserted into the arc grooves 13 of the two supporting mounting columns 12.

[0035] The two support mounting columns 12 allow a certain distance between the rear end of the foot pedal 2 and the bottom plate 1, providing space for the installation of the trigger push frame 3, the valve linear push rod 4 and the foot valve 5. It should be noted that there is a distance between the rotating shaft 21 and the rear end of the trigger push frame 3, and the rear side plate of the foot pedal 2 is connected to the trigger push frame 3, so that the foot part of the foot pedal 2 and the rear side plate of the foot pedal 2 form a lever respectively. Exemplarily, the bottom plate 1, the guide mounting plate 11 and the support mounting column 12 are an integrated structure using a plastic injection molding method.

[0036] In one embodiment of the present invention, a reset member 6 is provided between the foot pedal 2 and the bottom plate 1, and the reset member 6 is located on one side of the front end of the trigger push frame 3. The reset member 6 is used to restore the foot pedal 2 to its original position after being pressed down. Exemplarily, the reset member 6 is a spring, and two springs are provided on both sides of the trigger push frame 3, one end of the spring is positioned on the bottom plate 1, and the other end is positioned on the bottom surface of the foot pedal 2.

[0037] In order to facilitate the operation of the foot pedal 2, in a preferred embodiment, the free end of the foot pedal 2 extends outside the base plate 1, and a limit pad 22 is provided at the bottom of the free end of the foot pedal 2. Extending the free end of the foot pedal 2 outside the base plate 1 can not only increase the length of the foot pedal 2, but also reduce the volume of the foot switch device, and at the same time make it easier for the operator to step on the foot pedal 2. The limit pad 22 is used to limit the maximum amplitude of the downward swing of the foot pedal 2. Preferably, the limit pad 22 is a rubber pad with a buffering effect.

[0038] Specifically, the foot valve 5 door structure also includes a shell 7, which is covered on the bottom plate 1, and the shaft 21 and the support mounting column 12 are located in the shell 7 to achieve a dustproof effect. More specifically, a U-shaped handle bar 8 is provided at the rear end of the bottom plate 1 to facilitate the movement of the foot valve 5 door structure.

[0039] In one embodiment of the utility model, the bottom plate 1 is provided with a seat posture foot control ball cap 01, a water control button 02, a seat reset button 03 and a chip blowing air button 04. The seat posture foot control ball cap 01 is located behind the foot pedal 2, and the water control button 02, the seat reset button 03 and the chip blowing air button 04 are respectively arranged on both sides of the foot pedal 2. The seat posture foot control ball cap 01 is used to adjust the seat posture; there are two water control buttons 02, which respectively control the water supply of the dental handpiece and the mouthwash water supply; the chip blowing air button 04 is used to supply air to the chip blowing air gun.

[0040] Other structures and operations of the foot-operated valve structure of a dental comprehensive treatment machine according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of this specification, the description of the reference terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A foot-operated valve structure for a dental comprehensive treatment machine, characterized in that: It includes a base plate, a foot pedal, a trigger push frame, a valve linear push rod and a foot valve, wherein the foot valve is arranged on the base plate, and the rear end of the foot pedal can be rotatably mounted on the base plate; The trigger push frame is located between the foot valve and the foot pedal, and the length of the foot pedal is greater than the length of the trigger push frame; The rear end of the trigger push frame can be rotatably connected to the lower side of the rear end of the foot pedal, one end of the valve linear push rod abuts against the front end of the trigger push frame, and the rear end of the valve linear push rod is connected to the foot valve.

2. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 1, characterized in that: The two sides of the rear end of the trigger push frame are rotatably connected to the two sides of the foot pedal respectively, and a supporting surface is arranged at the center of the front end of the trigger push frame, and the end of the valve linear push rod is against the supporting surface.

3. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 2, characterized in that: The end of the valve linear push rod is provided with a contact arc surface, and the contact surface is an inclined plane with the bottom inclined toward the valve linear push rod; The abutting arc surface abuts against the abutting surface.

4. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 1, characterized in that: The bottom plate is fixed with a guide mounting plate, and the valve linear push rod is slidably matched with the guide mounting plate.

5. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 1, characterized in that: A rotating shaft is arranged at the rear end of the foot pedal, and a supporting mounting column is arranged on the bottom plate. The top of the supporting mounting column has an arc groove, and the two ends of the rotating shaft are respectively inserted into the arc grooves of the two supporting mounting columns.

6. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 5, characterized in that: A reset component is arranged between the foot pedal and the bottom plate, and the reset component is located at one side of the front end of the trigger push frame.

7. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 6, characterized in that: The free end of the foot pedal extends outside the base plate, and a limiting pad is arranged at the bottom of the free end of the foot pedal.

8. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 5, characterized in that: It also includes a shell, which is covered on the bottom plate, and the rotating shaft and the supporting mounting column are located in the shell.

9. The foot-operated valve structure of a dental comprehensive treatment machine according to any one of claims 1 to 8, characterized in that: A U-shaped handle bar is arranged at the rear end of the bottom plate.

10. The foot-operated valve structure of the dental comprehensive treatment machine according to claim 9, characterized in that: The bottom plate is provided with a seat posture foot control ball cap, a water control button, a seat reset button and a chip blowing button. The seat posture foot control ball cap is located behind the foot pedal, and the water control button, the seat reset button and the chip blowing button are respectively arranged on both sides of the foot pedal.

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