CN208669558U - A kind of medical inflation pump - Google Patents

Abstract

The utility model discloses a kind of medical inflation pump, it is related to inflating pump technical field, since the gas consumption of gas equipment is different, and the compressed air output capacity of existing inflator pump is fixed, then it is easy to appear the situations that gas supply is superfluous or gas supply is insufficient.This programme includes shell, fixed there are two compression cylinder and an air accumulator in shell, and sliding is embedded with piston head in each compression cylinder, and the space between piston head and compression cylinder cylinder bottom is compression chamber；Long axis is rotatably connected on each piston head, the long axis other end is rotatably connected to short axle；A drive shaft and driving assembly are equipped in shell, wherein one end of a short axle is fixed on one end of drive shaft, one end of another short axle is fixed with turntable, the other end of the turntable turning set in drive shaft；The electromagnetic clutch for fixing drive shaft and turntable is fixed in drive shaft.By controlling the power on/off of electromagnetic clutch, the quantity of piston head work can control, so that total air demand is adjusted, to adapt to actual conditions.

Description

A kind of medical inflation pump

Technical field

The utility model relates to inflate pump technical field, and in particular to a kind of medical inflation pump.

Background technique

Inflator pump is the pressure texture that box house is driven by motor, to realize the tool of transfer, the compression of gas. Inflator pump application field is extensive, wherein medical gas-filled pump is compared to other inflator pumps, noise is lower, is chiefly used in medical cushion Or other Medical Devices inflation.

Since existing inflator pump is mostly made of single motor and single set pressure texture, then the compressed capability of air is solid Fixed.Then when Medical Devices of the inflator pump to big gas consumption supply, often because air demand (supply gas pressure) deficiency causes Medical Devices it is inefficient, or even be unable to operate normally；When the inflator pump supplies the Medical Devices of small gas consumption, then because It is superfluous for gas supply, and lead to energy waste.

Utility model content

In view of the deficienciess of the prior art, passing through the purpose of this utility model is to provide a kind of medical inflation pump The power on/off of electromagnetic clutch is controlled, can control the quantity of piston head work, so that total air demand is adjusted, to adapt to practical feelings Condition, the probability of happening of final the case where reducing for unsaturated vapor or energy waste.

To achieve the above object, the utility model provides following technical solution: a kind of medical inflation pump, including shell Body, fixed in the shell there are two compression cylinder and an air accumulators, and connection is respectively connected between air accumulator and each compression cylinder It manages, the second check (non-return) valve is installed in connecting tube, air inlet pipe has been connected on each compression cylinder, it is non-return to be equipped with first in air inlet pipe Valve has connected on air accumulator and has been equipped with air outlet valve on escape pipe and escape pipe；Sliding is embedded with piston head in each compression cylinder, living Space between chock plug and compression cylinder cylinder bottom is compression chamber, and connecting tube is connected into compression chamber with air inlet pipe；Each piston head Far from long axis is rotatably connected in compression chamber one side wall, long axis is rotatably connected to short axle far from piston head one end；It is set in shell There are a drive shaft and the driving assembly for driving drive shaft turns, wherein a short axle is fixed on driving far from long axis one end One end of axis, another short axle are fixed with turntable, the other end of the turntable turning set in drive shaft far from long axis one end；In drive shaft It is fixed with the electromagnetic clutch for fixing drive shaft and turntable.

By using above-mentioned technical proposal, when the gas consumption of gas equipment is smaller, can only be worked by a piston head.I.e. Driving assembly can drive a short axle and a long axis motion, and corresponding piston head is driven to slide along compression cylinder axial reciprocating, Final compressed air, and by compressed-air-storing in air accumulator, for using.When the gas consumption of gas equipment is larger, can make Electromagnetic clutch is powered, then two piston heads can start to work, and the compressed air supply in air accumulator is more timely, to be supplied in The big equipment of gas consumption.

I.e. by the power on/off of control electromagnetic clutch, the quantity of piston head work can control, so that total air demand is adjusted, To adapt to actual conditions, the probability of happening of final the case where reducing for unsaturated vapor or energy waste.

The utility model is further arranged to: being equipped in the shell for being controlled according to the pressure values in air accumulator The motor circuit of electromagnetic clutch power on/off processed.

By using above-mentioned technical proposal, when the gas consumption of gas equipment is larger, the air pressure decline in air accumulator is obvious, Then motor circuit will control electromagnetic clutch work once electrified, to fix turntable and drive shaft.At this time.Two piston heads can be opened Beginning work, the compressed air supply in air accumulator is more timely, to be supplied in the big equipment of gas consumption.When the gas consumption of gas equipment When smaller, the compressed air in air accumulator is sufficient, and motor circuit controls electromagnetic clutch power-off, also with regard to only one piston head energy Work, and continued compression air.

The utility model is further arranged to: the motor circuit includes:

Baroceptor is installed in air accumulator, and for detecting the air pressure size in air accumulator, and output pressure detects Value；

Comparing unit, is coupled to the output end of baroceptor to receive pressure detected value, when pressure detected value be less than than Compared with unit preset value when, export the comparison signal of high level；

Control unit is coupled to the output end of comparing unit to receive comparison signal, and controls the on-off of electromagnetic clutch Electricity.

By using above-mentioned technical proposal, when the gas consumption of gas equipment is larger, the air pressure decline in air accumulator is obvious, Pressure detected value is easier to be less than the preset value of comparing unit, once then pressure detected value is less than the preset value of comparing unit, moves Power circuit will control electromagnetic clutch work once electrified, to fix turntable and drive shaft.Similarly, when detecting the pressure in air accumulator When strong detected value is greater than the preset value of comparing unit, motor circuit controls electromagnetic clutch power-off, also with regard to only one piston head It can work, and continued compression air.

The utility model is further arranged to: the air accumulator upper end opening is arranged and is detachably closed with capping.

By using above-mentioned technical proposal so that operator can remove capping, and to the baroceptor in air accumulator into Row replacement or maintenance.

The utility model is further arranged to: being connected with sealing ring between the capping and air accumulator.

By using above-mentioned technical proposal, the leakproofness between capping and air accumulator is improved, the loss of compressed air is reduced.

The utility model is further arranged to: the air inlet pipe is equipped with filter screen far from compression cylinder one end.

By using above-mentioned technical proposal, filter screen for reducing the impurity in inspiration compression cylinder and in air accumulator amount, To play a protective role to compression cylinder and air accumulator, or even the subsequent gas equipment of protection.

The utility model is further arranged to: the air inlet pipe is fixed with positioning on the internal perisporium far from compression cylinder one end Ring, filter screen are connected to positioning ring far from compression cylinder side, and air inlet pipe internal screw thread is connected with for filter screen to be pushed against positioning Abutting set on ring.

By using above-mentioned technical proposal, set is pushed against by rotation, filter screen can be pushed against on positioning ring, and is inverted Set is pushed against, abutting set and filter screen can be removed, to be cleared up filter screen or to be replaced.

The utility model is further arranged to: sealing ring is embedded on the piston head periphery wall.

By using above-mentioned technical proposal, the leakproofness of compression chamber is improved, to improve the efficiency of piston head compressed air.

The utility model has the advantage that

1, in the present solution, passing through the power on/off of control electromagnetic clutch, it can control the quantity of piston head work, to adjust Total air demand, to adapt to actual conditions, the probability of happening of final the case where reducing for unsaturated vapor or energy waste；

2, in the present solution, by being equipped with motor circuit then two work can be automatically adjusted according to the pressure size in air accumulator The work of chock plug or a piston head, thus more intelligent convenient.

Detailed description of the invention

Fig. 1 is the present embodiment structural schematic diagram；

Fig. 2 is the present embodiment top view；

Fig. 3 is the diagrammatic cross-section in Fig. 2 at A-A；

Fig. 4 is the structural schematic diagram of enclosure interior in the present embodiment；

Fig. 5 is the enlarged diagram in Fig. 4 at C；

Fig. 6 is the enlarged diagram in Fig. 3 at B；

Fig. 7 is motor circuit figure.

Appended drawing reference: 1, shell；11, cap；12, frame plate；13, connection frame；2, compression cylinder；21, air inlet pipe；211, first Check (non-return) valve；212, positioning ring；213, filter screen；214, set is pushed against；22, connecting tube；221, the second check (non-return) valve；23, compression chamber； 24, piston head；25, sealing ring；26, short axle；27, long axis；3, air accumulator；31, it covers；32, sealing ring；33, escape pipe；34, Air outlet valve；4, driving assembly；41, driving motor；42, driving gear；43, driven gear；44, drive shaft；5, turntable；51, electric Magnet clutch；6, motor circuit；61, baroceptor；62, comparing unit；63, control unit.

Specific embodiment

Clear, complete description is carried out to the technical solution of the utility model below with reference to attached drawing, it is clear that described Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Implementation based on the utility model Example, those of ordinary skill in the art's obtained all other embodiment without making creative work, all belongs to In the range that the utility model is protected.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third ", " the 4th " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The utility model is described further referring to attached drawing.

A kind of medical inflation pump, with reference to Fig. 1 and Fig. 2, including shell 1, simultaneously bolt is closed with the setting of 1 upper end opening of shell Cap 11.

It is fixed there are two compression cylinder 2 and an air accumulator 3 in shell 1 with reference to Fig. 3 and Fig. 4, air accumulator 3 and each compression It is respectively connected with connecting tube 22 between cylinder 2, the second check (non-return) valve 221 is installed, the second check (non-return) valve 221 is for being oriented to sky in connecting tube 22 Gas unidirectionally flows into air accumulator 3；Air inlet pipe 21 has been connected on each compression cylinder 2, and the first check (non-return) valve is installed in air inlet pipe 21 211, the first check (non-return) valve 211 unidirectionally flows into compression cylinder 2 for being oriented to air.3 upper end opening of air accumulator is arranged and detachably seals Capping 31 has been closed, has been connected with sealing ring 32 between capping 31 and air accumulator 3.Escape pipe 33, and escape pipe have been connected in capping 31 Air outlet valve 34 is installed on 33.

With reference to Fig. 3 and Fig. 4, sliding is embedded with piston head 24 in each compression cylinder 2, is embedded with sealing on 24 periphery wall of piston head 25 are enclosed, the space between 2 bottoms of piston head 24 and compression cylinder is compression chamber 23, and connecting tube 22 is connected to air inlet pipe 21 into compression In chamber 23.Each piston head 24 is far from a root long axis 27 is rotatably connected in 23 one side wall of compression chamber, and long axis 27 is far from piston First 24 one end is rotatably connected to a short axle 26.

With reference to Fig. 4 and Fig. 5, rotating turret is equipped with a drive shaft 44 in shell 1, is additionally provided with driving assembly 4 in shell 1, drives Dynamic component 4 is for driving drive shaft 44 to rotate.Wherein a short axle 26 is fixed on one end of drive shaft 44 far from 27 one end of long axis, Another short axle 26 is fixed with turntable 5, the other end of 5 turning set of turntable in drive shaft 44 far from 27 one end of long axis.Long axis 27 is long In short axle 26.An electromagnetic clutch 51 is fixed in drive shaft 44, the electromagnetic clutch 51 after energization is for fixing drive shaft 44 and turntable 5, so that two piston heads 24 be made to start to work.

With reference to Fig. 4 and Fig. 5, when the gas consumption of gas equipment is smaller, can only be worked by a piston head 24.That is driving electricity Machine 41 can drive a short axle 26 and a root long axis 27 to move, and drive corresponding piston head 24 sliding along 2 axial reciprocating of compression cylinder It is dynamic, to change the space size of compression chamber 23, then in the above process, when the volume of compression chamber 23 becomes larger, extraneous gas warp It crosses air inlet pipe 21 to proceed in compression chamber 23, due to the presence of the second check (non-return) valve 221, then the gas in air accumulator 3 cannot flow into pressure In contracting chamber 23；When the volume of compression chamber 23 becomes smaller, the air in compression chamber 23 proceeds in air accumulator 3 by connecting tube 22, by In the presence of the first check (non-return) valve 211, then the air in compression chamber 23 will not flow out to the external world.Aforesaid operations are repeated, then store up Air pressure in gas tank 3 is increasing, and finally to play the role of compressed air, and air accumulator 3 can play balanced air pressure Purpose.

With reference to Fig. 4 and Fig. 5, when the gas consumption of gas equipment is larger, electromagnetic clutch 51 can be made to be powered, then two pistons First 24 can start to work, and the compressed air supply in air accumulator 3 is more timely, to be supplied in the big equipment of gas consumption.

With reference to Fig. 6, air inlet pipe 21 is fixed with positioning ring 212 on the internal perisporium far from 2 one end of compression cylinder, and positioning ring 212 is remote Filter screen 213 is posted from closing in 2 one side wall of compression cylinder, 21 internal screw thread of air inlet pipe is connected with abutting set 214, pushes against set 214 and uses It is pushed against on positioning ring 212 in by filter screen 213.Then filter screen 213 is for reducing in inspiration compression cylinder 2 and in air accumulator 3 The amount of impurity, to play a protective role to compression cylinder 2 and air accumulator 3, or even the subsequent gas equipment of protection.And pass through rotation Set 214 is pushed against, filter screen 213 can be pushed against on positioning ring 212, and inverts and pushes against set 214, abutting 214 Hes of set can be removed Filter screen 213, so that filter screen 213 is cleared up or replaced.

With reference to Fig. 7, motor circuit 6 is equipped in shell 1, motor circuit 6 is used for according to the pressure values in air accumulator 3 to control 51 power on/off of electromagnetic clutch processed.

Motor circuit 6 includes:

Baroceptor 61 is installed on air accumulator 3(and sees Fig. 3) in, for detecting the air pressure size in air accumulator 3, and it is defeated Pressure detected value out；

Comparing unit 62 is coupled to the output end of baroceptor 61 to receive pressure detected value, when pressure detected value is small When the preset value of comparing unit 62, the comparison signal of high level is exported；

Control unit 63 is coupled to the output end of comparing unit 62 to receive comparison signal, and controls electromagnetic clutch 51 Power on/off.

Comparing unit 62 includes comparator A, resistance R1 and resistance R2, and the backward end of comparator A is coupled to baroceptor 61 output end, resistance R1 are serially connected between the positive terminal of comparator A and direct current VCC, and resistance R2 is being serially connected with comparator A just Between phase end and ground, the voltage value at the both ends resistance R2 is the preset value of comparing unit 62.

Control unit 63 includes resistance R3, resistance R4, triode Q1, sustained diode 1, relay KM1.

The both ends resistance R3 are respectively coupled to the output end of comparator A and the base stage of triode Q1, and resistance R4 is serially connected with three poles Between the base stage and ground of pipe Q1, the emitter of triode Q1 is grounded, and relay KM1 has coil and normally open contact, relay KM1 Coil tandem between the collector and direct current VCC of triode Q1, the normally open contact of relay KM1 is serially connected with electromagnetic clutch In the current supply circuit of device 51, the anode of sustained diode 1 is coupled to the collector of triode Q1, the cathode of sustained diode 1 It is coupled to direct current VCC.

Principle is embodied: when the gas consumption of gas equipment is smaller, can only be worked by a piston head 24, be somebody's turn to do with providing The gas consumption that equipment works normally；When the gas consumption of gas equipment is larger, the air pressure decline in air accumulator 3 is obvious, pressure inspection Measured value is easier to be less than the preset value of comparing unit 62, once then pressure detected value is less than the preset value of comparing unit 62, power Circuit 6 will control 51 work once electrified of electromagnetic clutch, to fix turntable 5 and drive shaft 44.At this point, two equal energy of piston head 24 It starts to work, the compressed air supply in air accumulator 3 is more timely, to be supplied in the big equipment of gas consumption.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of medical inflation pump, including shell (1), characterized in that fixed in the shell (1) there are two compression cylinder (2) It with an air accumulator (3), is respectively connected between air accumulator (3) and each compression cylinder (2) connecting tube (22), connecting tube is pacified on (22) Equipped with the second check (non-return) valve (221), connected air inlet pipe (21) on each compression cylinder (2), air inlet pipe is equipped with first on (21) Check (non-return) valve (211) has connected on air accumulator (3) and has been equipped with air outlet valve (34) on escape pipe (33) and escape pipe (33)；Each pressure Sliding is embedded with piston head (24) in contracting cylinder (2), and the space between piston head (24) and compression cylinder (2) cylinder bottom is compression chamber (23), connecting tube (22) is connected to air inlet pipe (21) into compression chamber (23)；Each piston head (24) is far from compression chamber (23) It is rotatably connected in one side wall long axis (27), long axis (27) is rotatably connected to short axle (26) far from piston head (24) one end；Shell Driving assembly (4) in body (1) equipped with a drive shaft (44) and for driving drive shaft (44) to rotate a, wherein short axle (26) one end of drive shaft (44) is fixed on far from long axis (27) one end, another short axle (26) is fixed far from long axis (27) one end Have turntable (5), the other end of turntable (5) turning set in drive shaft (44)；Drive shaft is fixed on (44) for fixing drive shaft (44) and the electromagnetic clutch (51) of turntable (5).

2. a kind of medical inflation pump according to claim 1, characterized in that be equipped in the shell (1) and be used for basis Pressure values in air accumulator (3) are to control the motor circuit (6) of electromagnetic clutch (51) power on/off.

3. a kind of medical inflation pump according to claim 2, characterized in that the motor circuit (6) includes:

Baroceptor (61) is installed in air accumulator (3), for detecting the air pressure size in air accumulator (3), and output pressure Detected value；

Comparing unit (62) is coupled to the output end of baroceptor (61) to receive pressure detected value, when pressure detected value is small When the preset value of comparing unit (62), the comparison signal of high level is exported；

Control unit (63) is coupled to the output end of comparing unit (62) to receive comparison signal, and controls electromagnetic clutch (51) power on/off.

4. a kind of medical inflation pump according to claim 3, characterized in that air accumulator (3) the upper end opening setting And detachably it is closed with capping (31).

5. a kind of medical inflation pump according to claim 4, characterized in that the capping (31) and air accumulator (3) it Between be connected with sealing ring (32).

6. a kind of medical inflation pump according to claim 1, characterized in that the air inlet pipe (21) is far from compression cylinder (2) one end is equipped with filter screen (213).

7. a kind of medical inflation pump according to claim 6, characterized in that the air inlet pipe (21) is far from compression cylinder (2) it is fixed on the internal perisporium of one end positioning ring (212), filter screen (213) is connected to positioning ring (212) far from compression cylinder (2) Side, air inlet pipe (21) internal screw thread are connected with the abutting set (214) for being pushed against filter screen (213) on positioning ring (212).

8. a kind of medical inflation pump according to claim 1, characterized in that be embedded on piston head (24) periphery wall Sealing ring (25).