Negative pressure suction pipeline system and arrangement method

Abstract

The invention relates to a negative pressure suction pipeline system and an arrangement method, and belongs to the technical field of negative pressure suction. Comprising a negative pressure suction system host and a dental chair, a suction inlet of the negative pressure suction system host is communicated and connected with a main pipeline, a plurality of branch pipelines which are connected in parallel are communicated with the main pipeline, and the tail ends of the branch pipelines are communicated and connected with the dental chair. The main pipeline or the branch pipeline is connected with a negative pressure compensation device in series, or the main pipeline and the branch pipeline are simultaneously connected with the negative pressure compensation device in series. The negative pressure compensation device on the main pipeline or the branch pipeline ensures that the negative pressure suction force of the dental chair far away from the negative pressure suction system host machine is not influenced, so that the use reliability of the far-end dental chair is optimized.

Description

Technical Field

[0001] The present application belongs to the field of negative pressure suction technology, and specifically relates to a negative pressure suction pipeline system and a layout method. Background Art

[0002] Large hospitals or dental clinics generally have multiple dental chairs, which are arranged in each consulting room. For the negative pressure suction system, most of them use a negative pressure suction main unit, which is then connected to each dental chair through a main line and various branch lines. Due to the influence of factors such as resistance along the way, the negative pressure of each section of the main line will be different. Generally speaking, the farther away from the negative pressure suction system main unit, the smaller the negative pressure, which affects the use effect. Summary of the invention

[0003] The technical problem to be solved by the present application is: to overcome the shortcomings of the prior art and provide a negative pressure suction pipe system and layout method. The present application ensures that the negative pressure suction of the dental chair far away from the main unit of the negative pressure suction system is not affected by the negative pressure compensation device on the main line or branch line, thereby optimizing the reliability of the use of the remote dental chair.

[0004] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0005] A negative pressure suction pipeline system includes a negative pressure suction system main unit and a dental chair. The suction port of the negative pressure suction system main unit is connected with a main pipeline, and the main pipeline is connected with a plurality of branch pipelines connected in parallel. The ends of the branch pipelines are connected with the dental chair.

[0006] The main pipeline or the branch pipeline is connected in series with a negative pressure compensation device, or the main pipeline and the branch pipeline are connected in series with a negative pressure compensation device at the same time.

[0007] Preferably, the negative pressure compensation device comprises a shell, and a negative pressure compensation component is arranged inside the shell.

[0008] The negative pressure compensation component comprises two oppositely arranged rotating wheels, the circumferential surfaces of the rotating wheels are provided with protrusions, an expansion air bag is sandwiched between the two rotating wheels, and the upper and lower ends of the expansion air bag are respectively connected with a liquid inlet pipe and a liquid discharge pipe.

[0009] The driving assembly drives the two wheels to rotate towards each other. When the two wheels rotate, the convex block squeezes and expands the air bag from the liquid inlet pipe end to the liquid discharge pipe end.

[0010] Preferably, the rotating wheel is provided with 2 to 5 protrusions distributed in a ring array around its axis, and the protrusions on the two rotating wheels abut against the expansion airbags at the same time.

[0011] Preferably, when the protrusions of the two rotating wheels rotate to a horizontal position, the gap between the two is the smallest, and the gap between the two is greater than the wall thickness of the expansion airbag.

[0012] Preferably, the expansion airbag is arranged vertically, and the horizontal cross-section of the expansion airbag is rectangular, and the cross-sectional area is larger than the cross-sectional area of ​​the main pipe.

[0013] Preferably, the thickness of the protrusion is greater than the length of the horizontal cross-section of the expanded airbag.

[0014] Preferably, a bearing plate is fixed inside the shell, a strap plate is fixed outside the expansion airbag, and the strap plate is fixedly connected to the bearing plate.

[0015] Preferably, a detachable pressing plate is fixed on the bearing plate, and the strapping plate is clamped between the bearing plate and the pressing plate.

[0016] Preferably, the front end of the shell is open, and a front end cover is provided at the open end.

[0017] A method for arranging a negative pressure suction pipeline system, including the above-mentioned negative pressure suction pipeline system, comprises the following steps:

[0018] S01. Arrange the main pipeline according to the position of the dental chair, and connect the dental chair with the main pipeline through the branch pipeline;

[0019] S02, adjusting the pressure of the main unit of the negative pressure suction system to ensure that the negative pressure value of the fifth or sixth dental chair away from the suction port of the main unit of the negative pressure suction system reaches the threshold;

[0020] S03. Detect the negative pressure on the branch pipeline of the 7th or 8th dental chair from the main unit of the negative pressure suction system. If the negative pressure is lower than or equal to the threshold, install a negative pressure compensation device on the branch pipeline or the main pipeline of the node. If the negative pressure is higher than the threshold, detect the negative pressure on the next branch pipeline.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The suction force of the remote branch pipeline is increased by the negative pressure compensation device, without increasing the power of the main unit of the negative pressure suction system. The negative pressure compensation device can be turned on whenever needed, thereby reducing energy consumption.

[0023] (2) The liquid sucked by the negative pressure flows inside the expansion airbag and does not come into contact with other components of the negative pressure compensation device, thereby avoiding contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 This is a first system diagram of a negative pressure suction pipeline system of this application.

[0026] Figure 2 This is a second system diagram of a negative pressure suction pipeline system of this application.

[0027] Figure 3 This is a structural diagram of a negative pressure compensation device in a negative pressure suction pipeline system of this application.

[0028] Figure 4 for Figure 3 An exploded diagram of

[0029] Figure 5 This is a structural diagram of the negative pressure compensation device in this application without the front end cover.

[0030] Figure 6 for Figure 5 The front view of

[0031] Figure 7 is a first cross-sectional view of the negative pressure compensation device in this application,

[0032] Figure 8 for Figure 7 A partial enlarged view of the middle A.

[0033] Fig. 9 is a second cross-sectional view of the negative pressure compensation device in this application,

[0034] Fig.10 This is a structural diagram of the negative pressure compensation component inside the negative pressure compensation device in this application.

[0035] In the figure: 01-negative pressure compensation device, 02-negative pressure suction system host, 03-main pipeline, 04-branch pipeline, 05-dental chair;

[0036] 1-housing, 101-carrying plate, 102-mounting hole, 2-front end cover, 201-support, 3-rotating wheel, 301-bump, 4-driving gear, 5-passive pulley, 6-driving mechanism, 7-synchronous belt, 8-intermediate wheel, 801-rotating shaft, 802-driving pulley, 803-passive gear, 9-expansion airbag, 901-liquid inlet pipe, 902-liquid discharge pipe, 903-board, 10-pressure plate, 11-mounting plate. DETAILED DESCRIPTION

[0037] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection, or it can be an indirect connection 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 this application can be understood according to specific circumstances.

[0040] The following is a further detailed description of a negative pressure suction pipe system and arrangement method of the present application in conjunction with the accompanying drawings, but it is not intended to limit the present application.

[0041] A negative pressure suction pipe system, comprising Figure 1 And attached Figure 2 As shown, it includes a negative pressure suction system host 02 and a dental chair 05. The negative pressure suction system host 02 adopts the existing technology to provide negative pressure suction required for the dental chairs 05 of one or more floors of the dental clinic, and is connected to the dental chairs 05 through the main pipeline 03 and the branch pipeline 04. During the oral diagnosis and treatment process, the dental chair 05 sucks the waste liquid generated into the negative pressure suction system host 02 through the branch pipeline 04 and the main pipeline 03.

[0042] The specific arrangement is as follows: the suction port of the negative pressure suction system main unit 02 is connected to a main pipeline 03, a plurality of branch pipelines 04 connected in parallel are connected to the main pipeline 03, and the ends of the branch pipelines 04 are connected to the dental chair 05. The cross-sectional area of ​​the main pipeline 03 is larger than that of the branch pipeline 04.

[0043] Since the distances between each branch pipeline 04 and the negative pressure suction system main unit 02 are different, the negative pressure of the branch pipeline 04 at each position is different due to factors such as resistance along the way. The farther the branch pipeline 04 is from the negative pressure suction system main unit 02, the smaller the suction force inside.

[0044] In order to ensure that the suction of the branch pipeline 04 at the far end can reach the threshold of use, the traditional method is to increase the power of the negative pressure suction system host 02 so that the suction of the branch pipeline 04 at the far end reaches the threshold. This causes the internal suction of the branch pipeline 04 close to the negative pressure suction system host 02 to be higher than the threshold, and the suction must be adjusted by adjusting the opening of the stop valve on the branch pipeline 04. However, the energy consumption of the negative pressure suction system host 02 is high, and the loss caused by increasing its power is high, which does not play a role in energy saving and consumption reduction. The branch pipeline 04 at the front end needs to reduce the opening of the stop valve to reduce the suction, and this part of energy waste is more obvious.

[0045] In order to increase the suction force on the remote branch pipeline 04 without increasing the power of the negative pressure suction system main unit 02, in this embodiment, a negative pressure compensation device 01 is connected in series to the main pipeline 03 or the branch pipeline 04, or a negative pressure compensation device 01 is connected in series to both the main pipeline 03 and the branch pipeline 04. The negative pressure compensation device 01 is used to increase the suction force of the branch pipeline 04, thereby ensuring that the power of the negative pressure suction system main unit 02 is within the high efficiency range.

[0046] By the attached Figure 3 To Attachment Fig.10 As shown, the negative pressure compensation device 01 comprises a housing 1, and a negative pressure compensation component is arranged inside the housing 1. In order to facilitate maintenance of the mechanism inside the housing 1, in this embodiment, the front end of the housing 1 is open, and a front end cover 2 is arranged to cover the open end.

[0047] The negative pressure compensation component comprises two oppositely arranged rotating wheels 3, a convex block 301 is provided on the circumferential surface of the rotating wheel 3, and a vertically arranged expansion air bag 9 is sandwiched between the two rotating wheels 3. The upper and lower ends of the expansion air bag 9 are respectively connected with a liquid inlet pipe 901 and a liquid discharge pipe 902, and the ends of the liquid inlet pipe 901 and the liquid discharge pipe 902 are passed through to the outside of the housing 1.

[0048] The driving assembly drives the two wheels 3 to rotate in opposite directions. When the two wheels 3 rotate, the protrusion 301 squeezes the expansion airbag 9 from the end of the liquid inlet pipe 901 to the end of the liquid discharge pipe 902. Suction is generated only when the protrusion 301 squeezes the expansion airbag 9 from top to bottom, thereby increasing the suction inside the branch pipeline 04. In order to shorten the interval time of suction increase, the wheel 3 is provided with 2 to 5 protrusions 301 distributed in a ring array around its axis, and the protrusions 301 on the two wheels 3 abut against the expansion airbag 9 at the same time.

[0049] When the protrusions 301 of the two wheels 3 rotate to the horizontal, the gap between them is the smallest, and the gap between them is greater than the wall thickness of the expansion airbag 9. The horizontal cross-section of the expansion airbag 9 is rectangular, and the cross-sectional area is greater than the cross-sectional area of ​​the main pipeline 03.

[0050] The thickness of the protrusion 301 is greater than the length of the horizontal cross section of the expansion airbag 9 , so as to prevent the end of the expansion airbag 9 from being separated from the protrusion 301 after deformation during the extrusion process, thereby extending the service life of the expansion airbag 9 .

[0051] In order to prevent the expansion airbag 9 from moving up and down during the squeezing process, a bearing plate 101 is fixed inside the housing 1, and a strap plate 903 is fixed outside the expansion airbag 9, and the strap plate 903 is fixedly connected to the bearing plate 101. A detachable pressing plate 10 is fixed on the bearing plate 101, and the strap plate 903 is sandwiched between the bearing plate 101 and the pressing plate 10.

[0052] The driving assembly is arranged outside the front end cover 2, and the driving assembly includes a driving mechanism 6. The driving mechanism 6 adopts a motor with a speed reduction mechanism.

[0053] The central axis of the rotating wheel 3 passes through the front end cover 2 and is placed outside, wherein the central axis of one rotating wheel 3 is connected to the output shaft of the driving mechanism 6 .

[0054] In order to realize the two wheels 3 moving toward each other, two gears meshing with each other may be sleeved on the central axes of the two wheels 3. However, in this arrangement, the sizes of the two gears are relatively large.

[0055] In this embodiment, another arrangement is provided, in which a driving gear 4 is sleeved on the central shaft of one rotating shaft 3, a passive pulley 5 is sleeved on the central shaft of the other rotating shaft 3, and an intermediate wheel 8 is arranged between the two rotating shafts 3. The intermediate wheel 8 includes a rotating shaft 801, on which a driving pulley 802 and a passive gear 803 are sleeved. A synchronous belt 7 is sleeved between the driving pulley 802 and the passive pulley 5, and the passive gear 803 is meshed and connected with the driving gear 4.

[0056] One end of the rotating shaft 801 is inserted into the front end cover 2 , and the other end is limited by the mounting plate 11 . The mounting plate 11 is detachably connected to the front end cover 2 via the support 201 .

[0057] A mounting hole 102 is provided on the top of the back side of the housing 1 to facilitate the fixed installation of the housing 1 .

[0058] A method for arranging a negative pressure suction pipeline system, including the above-mentioned negative pressure suction pipeline system, comprises the following steps:

[0059] S01. Arrange the main pipeline 03 according to the position of the dental chair 05, and connect the dental chair 05 with the main pipeline 03 through the branch pipeline 04;

[0060] S02, adjusting the pressure of the negative pressure suction system host 02 to ensure that the negative pressure value of the fifth or sixth dental chair 05 away from the suction port of the negative pressure suction system host 02 reaches the threshold;

[0061] S03, detect the negative pressure on the branch pipeline 04 of the 7th or 8th dental chair 05 away from the negative pressure suction system host 02. If the negative pressure is lower than or equal to the threshold, install a negative pressure compensation device 01 on the branch pipeline 04 or the main pipeline 03 of the node. If the negative pressure is higher than the threshold, detect the negative pressure on the next branch pipeline 04.

[0062] The implementation methods of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A negative pressure suction pipeline system, comprising a negative pressure suction system host (02) and a dental chair (05), Features: The suction port of the negative pressure suction system main unit (02) is connected to a main pipeline (03), and a plurality of branch pipelines (04) connected in parallel are connected to the main pipeline (03), and the ends of the branch pipelines (04) are connected to the dental chair (05); A negative pressure compensation device (01) is connected in series to the main pipeline (03) or the branch pipeline (04); Alternatively, a negative pressure compensation device (01) is connected in series on both the main pipeline (03) and the branch pipeline (04).

2. A negative pressure suction pipeline system according to claim 1, Features: The negative pressure compensation device (01) comprises a shell (1), wherein a negative pressure compensation component is arranged inside the shell (1); The negative pressure compensation component comprises two rotating wheels (3) arranged opposite to each other, a convex block (301) is provided on the circumferential surface of the rotating wheel (3), an expansion air bag (9) is sandwiched between the two rotating wheels (3), and the upper and lower ends of the expansion air bag (9) are respectively connected with a liquid inlet pipe (901) and a liquid discharge pipe (902); The driving assembly drives the two rotating wheels (3) to rotate in opposite directions. When the two rotating wheels (3) rotate, the protrusion (301) squeezes and expands the air bag (9) from the end of the liquid inlet pipe (901) to the end of the liquid discharge pipe (902).

3. A negative pressure suction pipeline system according to claim 2, Features: The rotating wheel (3) is provided with 2 to 5 protrusions (301) distributed in a ring array around its axis, and the protrusions (301) on the two rotating wheels (3) abut against the expansion airbag (9) at the same time.

4. A negative pressure suction pipeline system according to claim 2 or 3, Features: When the protrusions (301) of the two rotating wheels (3) rotate to a horizontal position, the gap between the two is the smallest, and the gap between the two is greater than the wall thickness of the expansion airbag (9).

5. A negative pressure suction pipeline system according to claim 4, Features: The expansion airbag (9) is arranged vertically, and the horizontal cross-section of the expansion airbag (9) is rectangular, and the cross-section area is larger than the cross-section area of ​​the main pipeline (03).

6. A negative pressure suction pipeline system according to claim 5, Features: The thickness of the protrusion (301) is greater than the length of the horizontal cross section of the expansion airbag (9).

7. A negative pressure suction pipeline system according to claim 4, Features: A bearing plate (101) is fixed inside the shell (1), and a strap plate (903) is fixed outside the expansion airbag (9), and the strap plate (903) is fixedly connected to the bearing plate (101).

8. A negative pressure suction pipeline system according to claim 7, Features: A detachable pressing plate (10) is fixed on the bearing plate (101), and the strap (903) is sandwiched between the bearing plate (101) and the pressing plate (10).

9. A negative pressure suction pipe system according to any one of claims 2 or 3 or 5 to 8, Features: The housing (1) is arranged with an open front end, and a front end cover (2) is provided at the open end.

10. A method for arranging a negative pressure suction pipeline system, comprising the negative pressure suction pipeline system according to claim 9, It is characterized in that The following steps are involved: S01, arranging the main pipeline (03) according to the position of the dental chair (05), and connecting the dental chair (05) with the main pipeline (03) through the branch pipeline (04); S02, adjusting the pressure of the negative pressure suction system main unit (02) to ensure that the negative pressure value of the fifth or sixth dental chair (05) away from the suction port of the negative pressure suction system main unit (02) reaches a threshold value; S03, detecting the negative pressure on the branch pipeline (04) of the 7th or 8th dental chair (05) from the main unit (02) of the negative pressure suction system. If the negative pressure is lower than or equal to a threshold, a negative pressure compensation device (01) is installed on the branch pipeline (04) or the main pipeline (03) of the node. If the negative pressure is higher than the threshold, the negative pressure on the next branch pipeline (04) is detected.

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