CN220622844U

CN220622844U - Dental sand blasting machine sand bottle sand channel water path double-valve control structure

Info

Publication number: CN220622844U
Application number: CN202322112329.4U
Authority: CN
Inventors: 黄榜波; 杨颖杰
Original assignee: Guilin Xpedent Medical Equipment Co ltd
Current assignee: Guilin Xpedent Medical Equipment Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-03-19
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a waterway double-valve control structure of a sand bottle and a sand channel of a dental sand blasting machine, which comprises a sand bottle arranged on a valve seat, wherein the valve seat is internally provided with a pipe hole I and a pipe hole II, a valve hole I penetrating through the pipe hole I is formed in the valve seat, a valve core I is arranged in the valve hole I in a sliding manner, a joint component I connected with a four-hole tail line of a dental chair is arranged in the pipe hole I, a joint component II connected with a sand blasting handle tail line is arranged in the pipe hole II, a slide way I matched with the valve core I is formed in the joint component I, the bottom of the valve seat between the pipe hole I and the pipe hole II is provided with a valve hole II, and the valve core II is arranged in the valve hole II in a sliding manner; an air blowing pipe communicated with the slide way I is arranged in the upper part of the joint component I, and an air inlet pipe communicated with the slide way I and a water inlet pipe communicated with a waterway pipe communicated with the valve hole I in the valve seat are arranged in the lower part of the joint component I; the joint assembly II is internally provided with a sand blasting pipe, a water spraying pipe communicated with the air passage pipe and an air spraying pipe communicated with the air passage pipe, the air spraying pipe is communicated with the sand blasting pipe, and the air passage pipe is arranged in the valve seat and is communicated with the valve hole I.

Description

Dental sand blasting machine sand bottle sand channel water path double-valve control structure

Technical Field

The utility model relates to a dental therapeutic apparatus structure, in particular to a double-valve control structure of a sand bottle and a sand channel of a dental sand blasting machine.

Background

In order to remove the residual dental sand blasting powder in the sand blasting handle of the dental sand blasting machine, the utility model patent with publication number of CN 113476156A proposes a dental sand blasting gun, which does not need to pour the dental sand blasting powder in a sand powder tank when removing the dental sand blasting powder in the sand blasting handle, but adds a reversing valve, a second air outlet and a purging pipe in the sand powder tank, the air inlet is communicated with the second air outlet through the reversing valve and is not communicated with the first air outlet, then compressed gas entering the second air outlet is led into the sand blasting handle through the purging pipe, the residual dental sand blasting powder in the sand blasting handle is purged, and the purged gas of the residual dental sand blasting powder in the sand blasting handle does not need to pass through the sand powder tank, namely the dental sand blasting powder in the sand powder tank is not required to be poured, so that the waste of the sand blasting dental powder is reduced.

The technical scheme of the dental sand blasting gun disclosed by the utility model only solves the problem that the cleaning of sand powder in a sand blasting handle is unavailable due to the cleaning of a liquid medium remained in the sand blasting handle.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to solve the technical problem of providing a double-valve control structure for a sand path of a sand bottle and a sand path of a dental sand blaster, which can simultaneously clean sand powder and liquid medium in a sand blasting handle.

Can solve the two valve accuse structures in dentistry sand blasting machine sand bottle sand way water route of above-mentioned technical problem, its technical scheme is including installing the sand bottle on the disk seat, be equipped with the blowing pipe in the middle and locate the play sand pipe of blowing pipe one side in the sand bottle, what the difference is:

1. the utility model provides a pair position blowpipe and play sand pipe have seted up tube hole I and tube hole II respectively in the disk seat, have seted up radial valve opening I who link up tube hole I from the opposite side in the disk seat, sliding fit has valve core I that reciprocates under the control of function switch I in valve opening I, install the joint Assembly I of connecting the four hole tails of tooth chair in tube hole I, install the joint Assembly II of connecting the sand blasting handle tail in tube hole II, joint Assembly I inwards seted up with valve core I complex slide I in the bottom of disk seat between tube hole I and the tube hole II has seted up axial valve opening II, sliding fit has valve core II that reciprocates under the control of function switch II in valve opening II.

2. The upper part of the joint assembly I is internally provided with a blowing pipe communicated with the slide way I, a nozzle at the top of the blowing pipe is opposite to the sand blowing pipe, and the lower part of the joint assembly I is internally provided with an air inlet pipe communicated with the slide way I and a water inlet pipe communicated with a waterway pipe communicated with the valve hole I in the valve seat.

3. The connector assembly II is internally provided with a sand blasting pipe communicated with the sand outlet pipe, a water spraying pipe communicated with the air passage pipe and an air spraying pipe communicated with the air passage pipe, wherein the air spraying pipe is communicated with the sand blasting pipe, and the air passage pipe is arranged in the valve seat and is communicated with the valve hole I.

4. The front part of the valve core I is internally provided with a core hole which is communicated with the end part, the front part of the valve core I is provided with an overflow hole I communicated with the core hole, and the middle part and the rear part of the valve core I are respectively provided with an annular groove I and an annular groove II.

5. And an overflow hole II is formed in the middle of the valve core II.

In the cleaning state of the dental sand blasting machine, the valve core I moves forwards to be in place and the valve core II returns downwards, the air inlet pipe is communicated with the air blowing pipe through the annular groove I, the water inlet pipe is communicated with the waterway pipe through the annular groove II, the overflow hole I and the overflow hole II are both closed in the valve hole, and the valve core II closes the air blowing pipe.

In the clean state of the dental sand blasting machine, the valve core I returns backwards and the valve core II moves upwards to be in place, the valve core I blocks the conduction between the air inlet pipe and the air blowing pipe and the conduction between the water inlet pipe and the waterway pipe, the air inlet pipe is conducted with the air path pipe, and the valve core II opens the air blowing pipe.

In order to prevent backflow, a one-way valve is arranged in the gas path pipe.

The utility model has the beneficial effects that:

1. in the double-valve control structure of the sand bottle and the sand channel of the dental sand blasting machine, the opening or closing of the cleaning water channel, the cleaning gas channel, the cleaning water channel and the cleaning sand channel is controlled by the inlet and outlet of the double valve cores in the double valve holes of the valve seat, so that the cleaning and cleaning of each pipeline channel are reliable in cleaning and cleaning states, and the pipeline is effectively prevented from being blocked due to the mixing of sand and water.

2. In the structure of the utility model, the sand channel and the waterway can be cleaned, so that the phenomenon of outflow of residual water in the pipeline is prevented when the tail line with four holes is dismantled, and the problem that sand and water remain and deteriorate in the pipeline is solved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is an enlarged view of a portion of the embodiment of fig. 1 at a showing both the waterway and the air path open during cleaning.

Fig. 3 is a partial enlarged view of embodiment a of fig. 1, showing that both the cleaning waterway and the cleaning sand path are open-circuited during cleaning.

Fig. 4 (a) is a schematic structural view of the valve core i in fig. 2 and 3.

Fig. 4 (b) is a schematic structural diagram of the valve core ii in fig. 2 and 3.

Drawing number identification: 1. a sand bottle; 1-1, a sand blowing pipe; 1-2, a sand outlet pipe; 2. a valve seat; 2-1, waterway pipes; 2-2, an air channel pipe; 3. four-hole tail lines of the dental chair; 4. a joint assembly I; 4-1, an air blowing pipe; 4-2, an air inlet pipe; 4-3, water inlet pipe; 5. sand blasting handle tail wire; 6. a joint assembly II; 6-1, a sand blasting pipe; 6-2, a water spraying pipe; 6-3, air ejector tube; 7. a valve core I; 7-1, core holes; 7-2, an overflow hole I; 7-3, annular groove I; 7-4, annular groove II; 8. a functional switch I; 9. a one-way valve I; 10. a one-way valve II; 11. a return spring I; 12. a sand blasting handle; 13. a valve core II; 13-1, an overflow hole II; 14. and a return spring II.

Detailed Description

The technical scheme of the utility model is further described below with reference to the embodiment shown in the drawings.

The utility model discloses a waterway double-valve control structure of a sand bottle of a dental sand blasting machine, which comprises a sand bottle 1 arranged on a valve seat 2 through a lower port, wherein a sand blowing pipe 1-1 is arranged in the middle (coaxial) of the sand bottle 1, a sand outlet pipe 1-2 is arranged on the right side of the sand blowing pipe 1-1, an axial pipe hole I is formed in the valve seat 2 corresponding to the sand blowing pipe 1-1, an axial pipe hole II is formed in the valve seat 2 corresponding to the sand outlet pipe 1-2, a valve hole I is formed in the left end of the valve seat 2 and penetrates through the pipe hole I forwards, a valve core I7 controlled by a functional switch I8 is pressed in the valve hole I through a return spring I11, the valve core I7 comprises a core hole 7-1 with a leading-out end part formed in the front part, an overflow hole I7-2 communicated with the core hole 7-1 from the bottom is formed in the front part of the valve core I7, and an annular groove I7-3 and an annular groove II 7-4 are respectively formed in the middle and the rear part of the valve core I7; an air passage pipe 2-2 is arranged between the right end of the valve hole I and the pipe hole II, the valve hole II is inwards arranged at the bottom of the valve seat 2 by the opposite air passage pipe 2-2, a valve core II 13 controlled by a function switch II is pressed in the valve hole II through a return spring II 14, and a left and right through-passing hole II 13-1 is arranged in the middle of the valve core II 13, as shown in fig. 1, 2, 3 and 4 (a) and 4 (b).

The pipe hole I is internally and hermetically provided with a joint component I4, a slide way I which is in sliding fit with the valve core I7 is arranged in the joint component I4, the upper part of the joint component I4 is provided with an axial blowing pipe 4-1, a nozzle at the top of the blowing pipe 4-1 is opposite to the blowing pipe 1-1, the bottom of the blowing pipe 4-1 is communicated with the slide way I, the lower part of the joint component I4 is arranged below the valve seat 2 and is connected with the four-hole tail wire 3 of the dental chair, the right air inlet pipe 4-2 and the left water inlet pipe 4-3 are arranged in the lower part of the joint component I4, the air inlet pipe 4-2 is communicated with the slideway I, and the water inlet pipe 4-3 is communicated with the waterway pipe 2-1 which penetrates through the valve hole on the left side of the joint component I4, as shown in figures 1, 2 and 3.

The pipe hole II is internally and hermetically provided with a joint component II 6, the lower part of the joint component II 6 is connected with a sand blasting handle tail wire 5 provided with a sand blasting handle 12 below the valve seat 2, a left air blasting pipe 6-3, a right sand blasting pipe 6-1 and a middle and rear water spraying pipe 6-2 are arranged in the joint component II 6, the top of the sand blasting pipe 6-1 is communicated with the sand spraying pipe 1-2, the top of the water spraying pipe 6-2 is downwards communicated with the air passage pipe 2-2 through an air pipe way (arranged in the valve seat 2), a one-way valve II 10 is arranged in the top of the water spraying pipe 6-2, two ends of the air spraying pipe 6-3 are respectively communicated with the air passage pipe 2-2 and the sand blasting pipe 6-1, a one-way valve I9 is arranged in the air spraying pipe 6-3, and the water passage pipe 2-1 backwards bypasses the joint component I4 and then is led out from the right side of the valve seat 2 and is communicated with the water spraying pipe 6-2, as shown in figures 1, 2 and 3.

The operation mode of the utility model is as follows:

1. under the cleaning state, the functional switch I8 pushes the valve core I7 forwards to be in place, and the valve core II 13 is reset downwards under the action of the return spring II 14, so that the cleaning air channel and the cleaning water channel are conducted, and the cleaning sand channel and the cleaning water channel are closed.

The conduction path of the cleaning gas circuit is as follows: the air inlet pipe 4-2- & gt annular groove I7-3- & gt air blowing pipe 4-1- & gt sand blowing pipe 1- & gt sand outlet pipe 1-2- & gt sand blasting pipe 6-1 as shown in figure 2.

The conduction path of the scaling waterway is as follows: the water inlet pipe 4-3- & gt annular groove II 7-4- & gt waterway pipe 2-1- & gt water spraying pipe 6-2 is shown in figure 2.

2. Under the cleaning state, the function switch I8 releases the pushing and pressing of the valve core I7, the valve core I7 is reset backwards under the acting force of the return spring 11 to switch the pipeline, the function switch II 8 pushes and presses the valve core II 13 to move upwards to the proper position, the overflow hole II 13-1 of the valve core II 13 conducts the gas channel pipe 2-2, namely the cleaning sand channel and the cleaning water channel, and the cleaning gas channel and the cleaning water channel are closed.

The conduction path of the cleaning sand path is as follows: the air inlet pipe 4-2- & gt the overflow hole I7-2- & gt the core hole 7-1- & gt the overflow hole II 13-1 (the air passage pipe 2- & gt the air spraying pipe 6-3- & gt the sand spraying pipe 6-1 are shown in figure 3.

The conduction path of the cleaning waterway is as follows: the air inlet pipe 4-2- & gt the overflow hole I7-2- & gt the core hole 7-1- & gt the overflow hole II 13-1 (the air passage pipe 2- & gt the air passage pipe- & gt the water spraying pipe 6-2, as shown in figure 3.

Claims

1. The utility model provides a two valve accuse structures in dental unit sand bottle sand way water route, including installing sand bottle (1) on disk seat (2), be equipped with blow tube (1-1) and the play sand pipe (1-2) of locating blow tube (1-1) one side in centering in sand bottle (1), its characterized in that:

the alignment sand blowing pipe (1-1) and the sand discharging pipe (1-2) are respectively provided with a pipe hole I and a pipe hole II in a valve seat (2), a radial valve hole I penetrating through the pipe hole I from the other side is formed in the valve seat (2), a valve core I (7) moving forwards and backwards under the control of a functional switch I (8) is in sliding fit in the valve hole I, a joint component I (4) connected with a four-hole tail wire (3) of a dental chair is arranged in the pipe hole I, a joint component II (6) connected with a sand blasting handle tail wire (5) is arranged in the pipe hole II, a slide way I matched with the valve core I (7) is formed in the joint component I (4), an axial valve hole II is formed in the bottom of the valve seat (2) between the pipe hole I and the pipe hole II, and a valve core II (13) moving upwards and downwards under the control of the functional switch II is in sliding fit in the valve hole II.

An air blowing pipe (4-1) communicated with the slide way I is arranged in the upper part of the joint assembly I (4), a nozzle at the top of the air blowing pipe (4-1) is opposite to the sand blowing pipe (1-1), an air inlet pipe (4-2) communicated with the slide way I and a water inlet pipe (4-3) communicated with a waterway pipe (2-1) penetrating through the valve hole I in the valve seat (2) are arranged in the lower part of the joint assembly I (4);

the connector assembly II (6) is internally provided with a sand blasting pipe (6-1) communicated with the sand outlet pipe (1-2), a water spraying pipe (6-2) communicated with the air passage pipe (2-2) and a gas spraying pipe (6-3) communicated with the air passage pipe (2-2), the gas spraying pipe (6-3) is communicated with the sand blasting pipe (6-1), and the air passage pipe (2-2) is arranged in the valve seat (2) and is communicated with the valve hole I;

a core hole (7-1) passing through the outlet end part is formed in the front part of the valve core I (7), an overflow hole I (7-2) communicated with the core hole (7-1) is formed in the front part of the valve core I (7), and an annular groove I (7-3) and an annular groove II (7-4) are respectively formed in the middle and rear parts of the valve core I (7);

an overflow hole II (13-1) is formed in the middle of the valve core II (13).

2. The dental sand blaster sand bottle sand channel double-valve control structure as claimed in claim 1, wherein: in the cleaning state of the dental sand blasting machine, the valve core I (7) moves forwards to be in place, the valve core II (13) returns downwards, the air inlet pipe (4-2) is communicated with the air blowing pipe (4-1) through the annular groove I (7-3), the water inlet pipe (4-3) is communicated with the waterway pipe (2-1) through the annular groove II (7-4), the overflow hole I (7-2) and the overflow hole II (13-1) are both closed in the valve hole, and the valve core II (13) closes the air blowing pipe (6-3).

3. The dental sand blaster sand bottle sand channel double-valve control structure as claimed in claim 1, wherein: in the clean state of the dental sand blasting machine, the valve core I (7) returns backwards and the valve core II (13) moves upwards to be in place, the valve core I (7) blocks the conduction between the air inlet pipe (4-2) and the air blowing pipe (4-1) and the conduction between the water inlet pipe (4-3) and the waterway pipe (2-1), the air inlet pipe (4-2) is conducted with the air channel pipe (2-2), and the valve core II (13) opens the air spraying pipe (6-3).

4. A dental sand blaster sand bottle sand channel waterway double valve control structure according to any one of claims 1-3, characterized in that: a one-way valve is arranged in the air passage pipe (2-2).