Dental three-purpose gun protective sleeve

Abstract

The utility model relates to the technical field of dental three-purpose guns, in particular to a dental three-purpose gun protective sleeve which comprises a sleeve body used for being connected to a handle of a dental three-purpose gun in a sleeved mode, and an opening is formed in the sleeve body and used for exposing two buttons of the dental three-purpose gun. Two normally-pressed mechanisms are arranged on the opening and are respectively used for pressing the two buttons for a long time; according to the utility model, the button can be normally opened, the working intensity of operators is effectively reduced, the fatigue of the operators is relieved, and the dental three-purpose gun can be prevented from falling off and being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of dental three-purpose guns, in particular to a protective cover for a dental three-purpose gun. Background Art

[0002] The dental three-in-one spray gun is one of the commonly used instruments in clinical dentistry. It usually consists of a gun body, a handle and a spray rod (or nozzle), and can be divided into two types: curved and straight according to the different holding methods when in use; the dental three-in-one spray gun is multi-functional, efficient and convenient, safe and reliable, and easy to operate. It can be connected to compressed air, water or air-water spray as needed, and delivered to a certain part of the mouth in the form of a spray. Its common functions include: washing function, suction function and spray function; the dental three-in-one spray gun usually has two switch buttons for water spray and air jet on its handle, and there are water flow and air flow passages inside. When working, the front end of the spray rod is extended into the patient's mouth. By pressing the above two switch buttons, the water flow or air flow passes through the three-in-one gun and is sprayed out from the front end opening of the spray rod. To ensure safety during use, when the above two switch buttons are not pressed, the water spray or air jet stops immediately.

[0003] Patent number: CN207462174U discloses a rubber cover for a dental three-in-one gun, which includes a gun body, a gun head and a gun mouth. The rubber cover is provided with a cover handle that is covered on the gun body of the three-in-one gun and a cover head that is engaged with the gun head. The cover handle and the cover head are designed as an open and close structure. The open and close structure is provided with an engaging piece for engagement and an engaging hole that engages with the engaging piece; the rubber cover is provided with a cover mouth that can be embedded in the gun mouth, which has the characteristic of being able to cover up the cold texture of the metal material and is easily accepted and loved by children.

[0004] However, the following problems still exist during the use of the dental three-in-one gun rubber cover: 1. The dental three-in-one gun rubber cover does not have a structure that can keep the switch button pressed. The doctor must press the button for a long time when using it, which easily causes fatigue in the doctor's hands; 2. The doctor needs to hold the dental three-in-one gun for a long time, but the dental three-in-one gun rubber cover does not have a structure that can connect the gun body to the doctor's hand, so it cannot prevent the dental three-in-one gun from accidentally falling and causing damage. Utility Model Content

[0005] In view of the above problems, the present invention aims to provide a protective cover for a dental three-in-one gun, so as to at least solve the problem that the rubber cover of the dental three-in-one gun in the prior art still requires the doctor to manually press the button frequently and is easy to fall off and be damaged.

[0006] The main ideas of the technical solution adopted by this utility model are:

[0007] A dental three-purpose gun protective cover is designed, comprising: a cover body, a cover body provided with two exposed openings, a first constant press member and a second constant press member provided on the openings, the first constant press member being rotatably connected to the cover body above the opening, one end of the second constant press member being rotatably connected to the first constant press member, and the other end being slidably connected to a notch at the bottom of the opening, a spring being also provided in the notch, the two ends of the spring being respectively connected to the second constant press member and the bottom of the notch; the vertical lengths of the first constant press member and the second constant press member are greater than the vertical lengths of the openings, when no force is applied, the spring is in a normal state, the second constant press member is lifted up by the spring, and an angle of less than 180 degrees is formed between the first constant press member and the second constant press member. , the first and second constant press members cannot contact the button; when force is applied to the connection between the first and second constant press members, the first constant press member rotates and the second constant press member slides to the bottom of the slot, the spring is compressed, and the first and second constant press members both contact and squeeze the button, so that the dental three-in-one gun starts working; the pressure members on both sides of the sleeve are rotated to connect, and the pressure members are L-shaped plates. When the pressure members rotate to the connection between the first and second constant press members, they squeeze them, and the spring is compressed, the first constant press member rotates and the second constant press member slides to the bottom of the slot, at this time the first and second constant press members both contact and squeeze the button, and the dental three-in-one gun starts working.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is:

[0009] A dental three-in-one gun protective cover is designed, comprising: a cover body for being sleeved on the handle of the dental three-in-one gun, the cover body being provided with an opening for exposing two buttons of the dental three-in-one gun;

[0010] Two long-press mechanisms are provided on the opening, and the two long-press mechanisms are respectively used to press two buttons for a long time.

[0011] Furthermore, two notches are provided at the bottom of the opening, and the two notches are respectively used to slidably connect the two constant-press mechanisms.

[0012] Furthermore, the long-press mechanism includes: a first long-press member and a second long-press member;

[0013] The first constant-press member is rotatably connected to the upper portion of the opening;

[0014] One end of the second constant-press member is rotatably connected to the first constant-press member, and the other end is slidably connected to the slot;

[0015] Furthermore, the constant-press mechanism further includes: a spring, which is arranged in the slot and has two ends connected to the second constant-press member and the bottom of the slot respectively.

[0016] Furthermore, a plurality of first extrusion members and a second extrusion member are respectively provided on the side of the first constant-press member and the second constant-press member facing the button.

[0017] Furthermore, two pressure pieces are rotatably connected to both sides of the sleeve, and the pressure pieces are used to make the normally-pressed mechanism contact the button.

[0018] Furthermore, an elastic band is provided on the sleeve body, and the elastic band is used to bind the sleeve body to the hand.

[0019] The beneficial effects of the present invention are as follows: compared with the prior art, the improvement of the present invention is that:

[0020] 1. The utility model provides a normally pressed mechanism and a pressure piece, so that when no force is applied by the pressure piece to the first and second normally pressed pieces, the springs are in a normal state, the angle between the first and second normally pressed pieces is less than 180 degrees and they do not contact the button, so that the dental three-in-one gun is in a closed state; and when the pressure piece is rotated to the rotation connection point of the first and second normally pressed pieces, the pressure piece generates an extrusion force on it, the spring connected to the second normally pressed piece is compressed, the first normally pressed piece rotates and the second normally pressed piece slides to the bottom of the slot, at which time the first and second normally pressed pieces both contact and squeeze the button, and the dental three-in-one gun starts to work; the button can be normally opened by simply rotating the pressure piece to the connection point of the first and second normally pressed pieces and clamping and fixing them, which effectively reduces the operator's work intensity and relieves operator fatigue.

[0021] 2. The utility model provides an elastic band on the sleeve to bind the sleeve and the handle of the dental three-in-one gun inside to the operator's hand, thereby avoiding problems such as damage caused by the dental three-in-one gun accidentally falling.

[0022] 3. The utility model provides a sleeve, so that even if the dental three-in-one gun falls, the dental three-in-one gun will not be seriously damaged due to the buffering force of the sleeve, thereby achieving double insurance for the dental three-in-one gun, extending the service life of the dental three-in-one gun to the maximum extent, and reducing medical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a dental three-purpose gun protective cover proposed by the utility model when the button is pressed;

[0024] Figure 2 It is an enlarged schematic diagram of part A in FIG1 of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a dental three-purpose gun protective cover proposed by the present invention when the button is not pressed;

[0026] Figure 4 For this utility model Figure 3 An enlarged schematic diagram of part B;

[0027] Figure 5 This is a schematic structural diagram of the sleeve of the utility model;

[0028] Figure 6 This is a structural diagram of the normally pressed mechanism of the present utility model;

[0029] The above drawings include the following reference numerals:

[0030] 10. Dental three-in-one gun; 11. Spray rod; 12. Gun body; 13. Handle; 14. Button; 20. Housing; 21. Opening; 22. Notch; 23. Cylinder; 30. Elastic band; 40. Constant-press mechanism; 41. First constant-press member; 42. First extrusion member; 43. Second constant-press member; 44. Second extrusion member; 50. Pressure member; 60. Fixing member. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Example 1

[0034] like Figure 1 As shown, the present application discloses a dental three-in-one gun protective cover, including: a cover body 20, a dental three-in-one gun 10 is generally composed of a spray rod 11, a gun body 12 and a handle 13, a button 14 of the dental three-in-one gun switch is generally provided on the handle 13 for the operator to press, and the cover body 20 is used to be placed on the handle 13, as shown in FIG. Figure 5 As shown, an opening 21 is provided on the sleeve 20, and the opening 21 is used to expose the two buttons 14 of the dental three-in-one gun 10 to the outside of the sleeve 20; two normally pressed mechanisms 40 are provided on the opening 21, and the two normally pressed mechanisms 40 are used to press the two buttons 14 for a long time respectively; the inner ring of the sleeve 20 is made of rubber material, and the rubber material has a certain elasticity, which provides a cushioning force for the dental three-in-one gun 10 when it falls; the outer ring of the sleeve 20 is made of polyetheretherketone material, which is not only resistant to high temperature but also easy to clean; the sleeve 20 is also provided with an anti-slip pattern on the bottom of the outer ring to prevent the dental three-in-one gun 10 from falling.

[0035] Furthermore, if Figure 5As shown, two notches 22 are provided at the bottom of the opening 21 , and the two notches 22 are used for slidingly connecting the two constant-press mechanisms 40 .

[0036] Furthermore, if Figure 6 As shown, the permanent press mechanism includes: a first permanent press member 41 and a second permanent press member 43. A connecting member matching the first permanent press member 41 is provided above the opening 21, and the first permanent press member 41 is rotatably connected to the connecting member through a rotating shaft; one end of the second permanent press member 43 is rotatably connected to the first permanent press member 41, and the other end is sleeved in the slot 22 and slidably connected to the slot 22; the overall vertical length of the first permanent press member 41 and the second permanent press member 43 is greater than the vertical length of the opening 21 and the button 14.

[0037] Furthermore, the constant press mechanism 40 also includes: a spring, which is arranged in the slot 22 and has a top end connected to the second constant press member and a bottom end connected to the bottom of the slot 22. By setting the spring, the spring pushes up the second constant press member 43 under normal conditions. Since the overall vertical length of the first constant press member 41 and the second constant press member 43 is greater than the vertical length of the opening 21 and the button 14, after the second constant press member 43 is pushed up by the spring, the angle between the first constant press member 41 and the second constant press member 43 is less than 180 degrees, that is, the first constant press member 41 and the second constant press member 43 do not contact the button 14 without external force; if force is applied to the rotational connection between the first constant press member 41 and the second constant press member 43, the first constant press member 41 rotates and the second constant press member 43 slides to the bottom of the slot 22, the spring is compressed, and the first constant press member 41 and the second constant press member 43 both contact and squeeze the button 14, so that the dental three-purpose gun 10 starts working.

[0038] Furthermore, if Figure 1 and Figure 3 As shown, the first constant press member 41 and the second constant press member 43 are respectively provided with a plurality of first extrusion members 42 and second extrusion members 44 on the side facing the button 14; the first extrusion members 42 and the second extrusion members 44 are evenly distributed on one side of the first constant press member 41 and the second constant press member 43, and according to the distance from the button 14 when pressing, the first extrusion members 42 and the second extrusion members 44 can be designed with different lengths so that they all contact the button 14 evenly; by providing the first constant press member 41 and the second constant press member 43, the contact area between the constant press mechanism 40 and the button 14 is reduced, the pressure is increased, and the button 14 is easily pressed to open.

[0039] Furthermore, pressure pieces 50 are respectively provided on both sides of the sleeve 20, and the two pressure pieces 50 are respectively rotatably connected to the two sides of the sleeve 20. The pressure pieces 50 are L-shaped plates, one end of which is respectively sleeved on the columns 23 on both sides of the sleeve 20 to realize the rotation of the pressure pieces 50, and the other end squeezes the first constant press piece 41 and the second constant press piece 43 when it rotates to the connection between the first constant press piece 41 and the second constant press piece 43; the provision of the pressure piece 50 can achieve the application of force to the connection between the first constant press piece 41 and the second constant press piece 43 for a long time, ensuring that the button 14 can be squeezed, while freeing the operator's hands and relieving the operator's fatigue.

[0040] Furthermore, if Figure 5 As shown, an elastic band 30 is provided on the sleeve body 20, and the elastic band 30 binds hands of different sizes to prevent the sleeve body 20 and the dental three-in-one gun 10 from falling.

[0041] Example 2

[0042] On the basis of the first embodiment, in order to enable the pressure member 50 to stably press the connection between the first and second constant pressing members 41 and 43 and avoid the pressure member 50 from being accidentally touched and causing displacement, two fixing members 60 are further provided on both sides of the sleeve 20. Figure 5 As shown, the fixing member 60 is in the shape of a U-shaped groove and matches the width of the pressure member 50. An elastic pad is connected to the U-shaped groove. The fixing member 60 is located at the bottom of the pressure member 50. The fixing member 60 is horizontal with the connection between the first constant press member 41 and the second constant press member 43. When the pressure member 50 rotates to the end of the fixing member 60 close to the opening 21, the pressure member 50 is clamped and fixed by the elastic pad. At this time, the pressure member 50 generates an extrusion force on the connection between the first constant press member 41 and the second constant press member 43; when the pressure member 50 rotates to the end of the fixing member 60 away from the opening 21, the pressure member 50 is clamped and fixed by the elastic pad. At this time, the pressure member 50 will not contact the connection between the first constant press member 41 and the second constant press member 43, and the first constant press member 41 and the second constant press member 43 will also not contact the button 14, that is, the dental three-purpose gun 10 is in the closed state.

[0043] The specific operation of the dental three-in-one gun protective cover provided by the present invention is as follows: when the dental three-in-one gun 10 needs to be opened, one glove of the operator is connected to the elastic band 30, such as Figure 1 and Figure 2As shown, the other hand rotates the pressure piece 50 corresponding to the button 14 to the end of the fixing piece 60 on the side of the opening 21 and engages it. At the same time, the pressure piece 50 generates a force on the connection between the first normal pressing piece 41 and the second normal pressing piece 43. The first normal pressing piece 41 rotates and the second normal pressing piece 43 slides to the bottom of the slot 22. The spring is compressed, and the first normal pressing piece 41 and the second normal pressing piece 43 rotate from less than 180 degrees to nearly 180 degrees. The first extrusion piece 42 and the second extrusion piece 44 on the side contact and squeeze the button 14, and the dental three-in-one gun 10 starts to work. When the dental three-in-one gun 10 needs to be turned off, as shown in FIG. Figure 3 and Figure 4 As shown, the pressure piece 50 corresponding to the button 14 is rotated counterclockwise, away from the connection between the first and second constant-press pieces 41, 43. At the same time, due to the lack of force, the spring returns to its normal state and pushes the second constant-press piece 43 upward, and the angle between the first and second constant-press pieces 41, 43 is restored to less than 180 degrees. The first extrusion piece 42 and the second extrusion piece 44 on its side are away from the button 14, and the dental three-in-one gun 10 stops working. Finally, the sleeve 20 is slightly moved toward the spray rod 11 so that the pressure piece 50 can be rotated to the other end of the fixing piece 60 away from the opening 21, and the pressure piece 50 is snapped into the fixing piece 60 to prevent the button 14 from being accidentally touched and opened.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dental three-in-one gun protective cover, comprising: A sleeve (20) for being sleeved on a handle (13) of a dental three-purpose gun (10), characterized in that an opening (21) is provided on the sleeve (20), and the opening (21) is used to expose two buttons (14) of the dental three-purpose gun (10); Two notches (22) are provided at the bottom of the opening (21), and a constant-press mechanism (40) is slidably connected to each of the two notches (22). The two constant-press mechanisms (40) are respectively used to press the two buttons (14) for a long time; The constant-press mechanism (40) comprises: a first constant-press member (41) and a second constant-press member (43); The first constant-pressing member (41) is rotatably connected to the upper portion of the opening (21); One end of the second constant pressing member (43) is rotatably connected to the first constant pressing member (41), and the other end is slidably connected to the slot (22); The permanent pressing mechanism (40) further comprises a spring, wherein the spring is arranged in the notch (22) and the two ends of the spring are respectively connected to the second permanent pressing member (43) and the bottom of the notch (22).

2. A dental three-in-one gun protective cover according to claim 1, characterized in that: The first constant pressing member (41) and the second constant pressing member (43) are respectively provided with a plurality of first extrusion members (42) and second extrusion members (44) on the side facing the button (14).

3. The dental three-in-one gun protective cover according to claim 1, characterized in that: Two pressure pieces (50) are rotatably connected to both sides of the sleeve (20), and the pressure pieces (50) are used to make the constant-press mechanism (40) contact the button (14).

4. The dental three-in-one gun protective cover according to claim 1, characterized in that: An elastic band (30) is provided on the sleeve (20), and the elastic band (30) is used to bind the sleeve (20) to the hand.

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