CN205108245U - Hydraulic control system of dentistry patient's chair - Google Patents
Hydraulic control system of dentistry patient's chair Download PDFInfo
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- CN205108245U CN205108245U CN201520746860.XU CN201520746860U CN205108245U CN 205108245 U CN205108245 U CN 205108245U CN 201520746860 U CN201520746860 U CN 201520746860U CN 205108245 U CN205108245 U CN 205108245U
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- hydraulic
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- oil
- hydraulic bjuffer
- patient chair
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Abstract
The utility model provides a hydraulic control system of dentistry patient's chair, include patient's chair body, oil pump, oilcan, solenoid valve, lower hydro -cylinder and go up the hydro -cylinder, the base bottom of patient's yu chair body is installed to oil pump and oilcan, the oil pump passes through the last hydro -cylinder and hydro -cylinder action down of the pipeline drive patient chair body, the oilcan is used for saving hydraulic oil, the oscilaltion of patient's oil cylinder drive chair body down, the upward luffing of patient's oil cylinder drive chair body back, the solenoid valve install in the flexible orientation of piston of hydro -cylinder and lower hydro -cylinder is gone up to one side of oil pump through pipeline control, solenoid valve and still being provided with on the pipeline between the hydro -cylinder down prevent the hydraulic oil that pumps in the oil pump charge into down the hydro -cylinder cause patient's chair body to rise suddenly the pause and transition in rhythm or melody is felt or the hydraulic oil that prevents down the hydro -cylinder pressure release is charged into the oilcan and is caused the personally experience sth. Part of the body hydraulic absorber of brusque dip pause and transition in rhythm or melody sense of patient's chair.
Description
[technical field]
This utility model relates to the control device of dental patient chair, particularly relates to a kind of hydraulic control system of dental patient chair.
[background technology]
At present, the headrest of dental chair is a part for dental patient chair, and its effect supports the adjustment that patient head has multi-angle good in dental procedure.The patient chair of existing dental multipurpose therapy unit, main movement has the elevating movement of seat and the elevating movement of backrest.
Patient chair can be divided into motor to drive and hydraulic-driven according to the source of power.Wherein hydraulically powered patient chair hydraulic system is primarily of oil pump, electromagnetic valve, upper cylinder, lower oil cylinder composition; When patient chair needs to rise, operation of oil pump, the electromagnetic valve controlling lower oil cylinder is opened, and lower oil cylinder stretches out, and promotes patient chair and rises.When patient chair rises stopping, oil pump quits work, and control the solenoid closure of lower oil cylinder, lower oil cylinder stops, and patient chair stops rising; When patient chair needs to decline, the electromagnetic valve controlling lower oil cylinder is opened, and lower oil cylinder is regained under gravity, and patient chair declines.When patient chair declines stopping, controlling the solenoid closure of lower oil cylinder, lower oil cylinder stops, and patient chair stops decline.
Due to startup and the stopping of oil cylinder under hydraulically powered patient chair hydraulic system, be all by solenoid control, the closed and unlatching of electromagnetic valve is all complete instantaneously, causes seat in lifting process, have obvious pause and transition in rhythm or melody sense.
[utility model content]
This utility model provides a kind of and can regulate by stereoscopic and omnibearing multi-angle rotation in operation process, improves the hydraulic control system of the dental patient chair of the operability of doctor and the quality of seeking medical advice of patient.
In order to realize above-mentioned utility model object, the technical solution adopted in the utility model is:
The hydraulic control system of dental patient chair, comprise patient chair body, oil pump, oil can, electromagnetic valve, lower oil cylinder and upper cylinder, described oil pump and oil can are installed on the base bottom of patient chair body, described oil pump drives the upper cylinder of patient chair body and lower cylinder action by pipeline, and described oil can is for storing hydraulic oil; The oscilaltion of described lower hydraulic oil cylinder driving patient chair body, upper cylinder drives the elevating movement of patient chair body backrest; Described electromagnetic valve is installed on the side of described oil pump and is controlled the piston telescopic direction of upper cylinder and lower oil cylinder by pipeline; Pipeline between described electromagnetic valve and lower oil cylinder is also provided with the hydraulic oil preventing from pumping in oil pump to charge into lower oil cylinder and cause the sense of rising pause and transition in rhythm or melody suddenly of patient chair body or prevent the hydraulic oil of lower oil cylinder pressure release from charging into the hydraulic bjuffer that oil can causes patient chair body decline pause and transition in rhythm or melody suddenly sense.
Preferably, described hydraulic bjuffer is by hydraulic bjuffer upper cover, hydraulic buffer main body, hydraulic bjuffer spool, spring and hydraulic bjuffer base composition, hydraulic bjuffer upper cover and hydraulic bjuffer floor installation are in the upper and lower two ends of hydraulic buffer main body of tubular and form the container of a sealing, hydraulic bjuffer spool is installed in the cavity of hydraulic buffer main body and by cavity and is divided into upper and lower two spaces, described spring fitting is between hydraulic bjuffer upper cover and hydraulic bjuffer spool and by hydraulic bjuffer spool elastic compression on hydraulic bjuffer base inner wall, hydraulic bjuffer base is provided with and the unilaterally connected installing hole of three-dimensional branch line on described electromagnetic valve, when electromagnetic valve is opened, hydraulic bjuffer upper space pressure becomes large, and spring absorbs a part of hydraulic energy and compressed, during closed electromagnetic valve, hydraulic bjuffer upper space pressure diminishes, and the hydraulic energy that spring release absorbs extends simultaneously, and hydraulic bjuffer provides a part of hydraulic oil to lower oil cylinder.
Preferably, described hydraulic bjuffer spool comprises valve core case, high-pressure seal ring and cartridge cover, high-pressure seal ring is socketed on valve core case circumference cylindrical and is fixed by cartridge cover, and valve core case is connected with for pressed spool lid and spring is fixed on the hexagon socket head cap screw on hydraulic bjuffer spool.
The beneficial effects of the utility model are:
This utility model solves existing dentistry hydraulic pressure patient chair obvious problem of pause and transition in rhythm or melody sense in lifting process, by increasing hydraulic bjuffer in lower oil path in oil cylinder, when the startup of lower oil cylinder, hydraulic bjuffer absorbs a part of hydraulic energy, reduce pressure fluctuation, alleviate hydraulic pressure patient chair obvious problem of pause and transition in rhythm or melody sense in start-up course; When stopping in the motion of lower oil cylinder, hydraulic bjuffer discharges a part of hydraulic energy, provides a part of hydraulic oil at short notice, alleviates hydraulic pressure patient chair obvious problem of pause and transition in rhythm or melody sense in motion stopped process; Namely in the process of patient chair lifting, hydraulic bjuffer absorbs and release portion hydraulic energy, thus improve dental patient chair and to move up and down the pause and transition in rhythm or melody sense of startup in process and stopping, improve the comfort level of dental patient chair, improve the quality of seeking medical advice of patient.
[accompanying drawing explanation]
Fig. 1 is the hydraulic system installation diagram of this utility model dental patient chair;
Fig. 2 is this utility model dental patient chair hydraulic system principle figure;
Fig. 3 is the schematic enlarged-scale view of hydraulic bjuffer in this utility model.
[detailed description of the invention]
The hydraulic control system of dental patient chair, as shown in Figure 1 to Figure 3, comprise patient chair body 14, oil pump 1, oil can 6, electromagnetic valve 2, lower oil cylinder 3 and upper cylinder 4, oil pump 1 and oil can 6 are installed on the base bottom of patient chair body, oil pump 1 drives upper cylinder 4 and the action of lower oil cylinder 3 of patient chair body by pipeline, and described oil can 6 is for storing hydraulic oil; Wherein, lower oil cylinder 3 drives the oscilaltion of patient chair body, and upper cylinder 4 drives the elevating movement of patient chair body backrest; Electromagnetic valve 2 is installed on the side of oil pump 1 and is controlled the piston telescopic direction of upper cylinder 4 and lower oil cylinder 3 by pipeline; Pipeline between electromagnetic valve 2 and lower oil cylinder 3 is also provided with and prevents from the hydraulic oil pumped in oil pump 1 from charging into lower oil cylinder 3 causing the sense of rising pause and transition in rhythm or melody suddenly of patient chair body or prevent the hydraulic oil of lower oil cylinder 3 pressure release from charging into the hydraulic bjuffer 5 that oil can 6 causes patient chair body decline pause and transition in rhythm or melody suddenly sense.
Wherein, as shown in Figures 2 and 3, hydraulic bjuffer 5 is by hydraulic bjuffer upper cover 7, hydraulic buffer main body 8, hydraulic bjuffer spool 15, spring 11 and hydraulic bjuffer base 12 form, hydraulic bjuffer upper cover 7 and hydraulic bjuffer base 12 are installed on hydraulic buffer main body about 8 two ends of tubular and form the container of a sealing, hydraulic bjuffer spool 15 is installed in the cavity of hydraulic buffer main body 8 and by cavity and is divided into upper and lower two spaces, spring 11 to be installed between hydraulic bjuffer upper cover 7 and hydraulic bjuffer spool 15 and by hydraulic bjuffer spool 15 elastic compression on hydraulic bjuffer base 12 inwall, hydraulic bjuffer base 12 is provided with and the unilaterally connected installing hole of three-dimensional branch line on electromagnetic valve 2, in addition, hydraulic bjuffer spool 15 comprises valve core case 9, high-pressure seal ring 13 and cartridge cover 16, high-pressure seal ring 13 is socketed on the circumferential cylindrical of valve core case 9 and is fixed by cartridge cover 16, and valve core case 9 is connected with for pressed spool lid 16 and spring 11 is fixed on the hexagon socket head cap screw 10 on hydraulic bjuffer spool 15, when electromagnetic valve 2 is opened, hydraulic bjuffer 5 upper space pressure becomes large, and spring 11 absorbs a part of hydraulic energy and compressed, when electromagnetic valve 2 cuts out, hydraulic bjuffer 5 upper space pressure diminishes, and spring 11 discharges the hydraulic energy absorbed and extends simultaneously, and hydraulic bjuffer 5 provides a part of hydraulic oil to lower oil cylinder 3.So, in the process of patient chair lifting, hydraulic bjuffer 5 plays absorption and release portion hydraulic energy, thus improves dental patient chair and to move up and down the pause and transition in rhythm or melody sense of startup in process and stopping, effectively improve the comfort level of dental patient chair, improve the quality of seeking medical advice of patient.
The above embodiment is just preferred embodiment of the present utility model, and not limit practical range of the present utility model with this, caulking groove shape is except situation about enumerating in specific embodiment; The equivalence change that all shapes according to this utility model, structure and principle are done, all should be covered by protection domain of the present utility model.
Claims (3)
1. the hydraulic control system of dental patient chair, comprise patient chair body (14), oil pump (1), oil can (6), electromagnetic valve (2), lower oil cylinder (3) and upper cylinder (4), described oil pump (1) and oil can (6) are installed on the base bottom of patient chair body, described oil pump (1) drives upper cylinder (4) and lower oil cylinder (3) action of patient chair body by pipeline, and described oil can (6) is for storing hydraulic oil; It is characterized in that:
Described lower oil cylinder (3) drives the oscilaltion of patient chair body, and upper cylinder (4) drives the elevating movement of patient chair body backrest;
Described electromagnetic valve (2) is installed on the side of described oil pump (1) and is controlled the piston telescopic direction of upper cylinder (4) and lower oil cylinder (3) by pipeline;
Pipeline between described electromagnetic valve (2) and lower oil cylinder (3) is also provided with and prevents from the hydraulic oil pumped in oil pump (1) from charging into lower oil cylinder (3) causing the sense of rising pause and transition in rhythm or melody suddenly of patient chair body or prevent the hydraulic oil of lower oil cylinder (3) pressure release from charging into the hydraulic bjuffer (5) that oil can (6) causes patient chair body decline pause and transition in rhythm or melody suddenly sense.
2. the hydraulic control system of dental patient chair according to claim 1, it is characterized in that, described hydraulic bjuffer (5) is by hydraulic bjuffer upper cover (7), hydraulic buffer main body (8), hydraulic bjuffer spool (15), spring (11) and hydraulic bjuffer base (12) composition, the hydraulic buffer main body (8) that hydraulic bjuffer upper cover (7) and hydraulic bjuffer base (12) are installed on tubular up and down two ends form the container of a sealing, hydraulic bjuffer spool (15) is installed in the cavity of hydraulic buffer main body (8) and by cavity and is divided into upper and lower two spaces, described spring (11) to be installed between hydraulic bjuffer upper cover (7) and hydraulic bjuffer spool (15) and by hydraulic bjuffer spool (15) elastic compression on hydraulic bjuffer base (12) inwall, hydraulic bjuffer base (12) is provided with the upper unilaterally connected installing hole of three-dimensional branch line with described electromagnetic valve (2), when electromagnetic valve (2) is opened, hydraulic bjuffer (5) upper space pressure becomes large, and spring (11) absorbs a part of hydraulic energy and compressed, when electromagnetic valve (2) cuts out, hydraulic bjuffer (5) upper space pressure diminishes, the hydraulic energy that spring (11) release absorbs extends simultaneously, and hydraulic bjuffer (5) provides a part of hydraulic oil to lower oil cylinder (3).
3. the hydraulic control system of dental patient chair according to claim 2, it is characterized in that, described hydraulic bjuffer spool (15) comprises valve core case (9), high-pressure seal ring (13) and cartridge cover (16), high-pressure seal ring (13) is socketed on valve core case (9) circumferential cylindrical and is fixed by cartridge cover (16), and valve core case (9) is connected with for pressed spool lid (16) and spring (11) is fixed on the hexagon socket head cap screw (10) on hydraulic bjuffer spool (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746860.XU CN205108245U (en) | 2015-09-24 | 2015-09-24 | Hydraulic control system of dentistry patient's chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746860.XU CN205108245U (en) | 2015-09-24 | 2015-09-24 | Hydraulic control system of dentistry patient's chair |
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| Publication Number | Publication Date |
|---|---|
| CN205108245U true CN205108245U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520746860.XU Active CN205108245U (en) | 2015-09-24 | 2015-09-24 | Hydraulic control system of dentistry patient's chair |
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| CN (1) | CN205108245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309677A (en) * | 2018-01-30 | 2018-07-24 | 李江鸿 | A kind of removable department of stomatology inspection patients to lie chair |
-
2015
- 2015-09-24 CN CN201520746860.XU patent/CN205108245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108309677A (en) * | 2018-01-30 | 2018-07-24 | 李江鸿 | A kind of removable department of stomatology inspection patients to lie chair |
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