CN214621539U

CN214621539U - Pressure indicator

Info

Publication number: CN214621539U
Application number: CN202120712696.6U
Authority: CN
Inventors: 卢志东
Original assignee: Yameisite Tianjin Medical Equipment Co ltd
Current assignee: Yameisite Tianjin Medical Equipment Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-05
Anticipated expiration: 2031-04-08

Abstract

The utility model provides a pressure indicator, including top cap and bottom, top cap and bottom lid form the holding chamber together, and the top cap upper end is provided with pressure calibrated scale and rotatable pressure pointer, and the holding intracavity includes tee bend subassembly, and tee bend subassembly's air inlet and gas outlet stretch out the holding chamber outside, tee bend subassembly's pressure measurement mouth and flexible ejector pin intercommunication, the other end of flexible ejector pin is fixed with the rotatory drive mechanism of drive pressure pointer, drive mechanism can turn into the linear motion of flexible ejector pin the rotary motion of pressure pointer. The pressure indicator is stable in structure, not prone to being affected by the environment, accurate in measurement, low in manufacturing reject ratio and capable of effectively reducing cost.

Description

Pressure indicator

Technical Field

The utility model relates to a pressure measurement field, concretely relates to pressure indicator.

Background

The pressure indicator is used for monitoring the sealing pressure required by the capsule body when the tracheal intubation and the laryngeal mask are applied so as to make up for the inaccuracy caused by the fact that the traditional method depends on manual hand feeling to judge the pressure, and the pressure indicator is greatly concerned by medical workers and the medical appliance industry due to the application value of the pressure indicator in clinic.

In order to monitor the pressure value in the intubation tube or the laryngeal mask more accurately, patent No. CN211401524U proposes a micro-pressure measuring meter, the corrugated elastic body connected with the three-way component deforms along with the pressure change, and then drives the pressure pointer connected with the rotary amplifier to rotate, the pressure is obtained through the value indicated by the pressure pointer on the pressure dial, the linear motion of the rotary amplifier is converted into a rotation angle, so that the pressure measurement accuracy is higher, but the corrugated elastic body used in the above patent is easily affected by the environmental change and is aged, and the accurate measurement performance is lost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art, provide a pressure indicator, mainly used measures gasbag internal pressure among the medical instrument, is particularly useful for laryngeal mask, has the trachea cannula of gasbag and other medical instrument that have the gasbag, and stable in structure, long service life for solve the problem that proposes among the above-mentioned background art.

In order to realize the above purpose, the utility model provides a pressure indicator, including top cap and bottom, top cap and bottom lid form the holding chamber together, and the top cap upper end is provided with pressure calibrated scale and rotatable pressure pointer, and the holding intracavity is fixed with three way component, and three way component's air inlet and gas outlet stretch out the holding intracavity outward, and three way component's pressure measurement mouth and flexible ejector pin intercommunication, the other end of flexible ejector pin is fixed with the rotatory drive mechanism of drive pressure pointer, drive mechanism can turn into the linear motion of flexible ejector pin the rotary motion of pressure pointer.

As the utility model discloses a further setting, drive mechanism include with the flexible direction unanimous rack of flexible ejector pin and with rack toothing's gear, the gear is connected with the bottom rotation through fixing the gear shaft on the bottom, the lower extreme of gear shaft is rotatably installed in the pivot seat that sets up on the bottom, the pressure pointer fix run through the top cap the gear shaft top and with gear shaft interference fit.

As the utility model discloses a further setting, it has transparent safety cover to peg graft on the top cap, pressure calibrated scale and pressure pointer are located the safety cover.

As the utility model discloses a further setting, the one end that flexible ejector pin and drive mechanism are connected is equipped with two circular shape snap rings, the one end that tee bend subassembly was kept away from to the rack is provided with annular connecting groove perpendicularly, connects the snap ring card and establishes between two snap rings.

As the utility model discloses a further setting, rack upper and lower surface all is provided with the bar guide block unanimous with rack moving direction, corresponds, all is provided with the bar guide way on top cap, the bottom, the both ends of guide block are for the cylindricality of agreeing with the guide way, and the guide block can be at guide way internal reciprocating motion.

As the utility model discloses a further setting, the left and right both sides of bottom, top cap opposite face are provided with the mounting groove of enclosing synthetic import and export, the tee bend subassembly includes the tee bend and the check valve of being connected with the three-way air inlet, three-way gas outlet and check valve inlay card are in the mounting groove, and wherein top cap and bottom enclose synthetic import mounting groove department be provided with the spacing groove that the spacing ring agrees with on the check valve.

As the utility model discloses a further setting, along being provided with the cylindrical slot of round in the bottom, corresponding, along being provided with the cylindrical grafting post of round in the top cap.

As a further arrangement of the utility model, the one end of the rack close to the tee joint is positioned in the U-shaped groove formed outside the tee joint.

A pressure indicator who obtains through above-mentioned technical scheme, its beneficial effect is:

flexible ejector pin is flexible along with the size of tee bend subassembly internal pressure, and horizontal migration about the rack is along with flexible ejector pin during flexible, and the rotation of gear shaft top pressure pointer is realized to intermeshing's gear, rack, for current fold elastomer, stable in structure is difficult for receiving external environment, temperature and illumination influence, long service life, simple manufacture simultaneously, and the equipment of being convenient for can effectively reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the pressure indicator of the present invention.

Fig. 2 is a schematic diagram of the structure in the accommodating cavity of the pressure indicator of the present invention.

Fig. 3 is a schematic structural diagram of the bottom cover of the present invention.

Fig. 4 is a schematic structural diagram of the top cover of the present invention.

In the figure, 1, a top cover; 11. inserting the column; 2. a bottom cover; 21. a slot; 22. a rotating shaft seat; 3. a guide groove; 4. a protective cover; 5. a telescopic ejector rod; 51. a snap ring; 6. a pressure pointer; 7. a tee assembly; 71. a tee joint; 71a, a groove; 72. a one-way valve; 72a, a limiting ring; 8. a transmission mechanism; 81. a rack; 81a and a limiting block; 81b, connecting a clamping groove; 82. a gear; 83. a gear shaft; 9. and (4) mounting the groove.

Detailed Description

The invention is further embodied by the following description in conjunction with the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a pressure indicator, which includes a top cover 1 and a bottom cover 2, the top cover 1 and the bottom cover 2 are covered together to form an accommodating cavity, a transparent protective cover 4 is inserted into the center of the upper end of the top cover 1, a fan-shaped pressure dial is arranged in the protective cover 4, the pressure dial is marked with pressure values and units, a pressure pointer 6 which can rotate and is used for indicating the pressure values is further arranged in the protective cover 4, and the left side and the right side of the top cover 1 and the right side of the bottom cover 2 are respectively enclosed to form an inlet and an outlet for extending an air inlet and an air outlet of a three-way component 7.

As shown in fig. 2, a three-way assembly 7 is fixed in the receiving cavity, the three-way assembly 7 includes a three-way 71 and a one-way valve 72 connected to an air inlet of the three-way 71, the one-way valve 72 is disposed to prevent air from flowing backwards, the other end of the one-way valve 72 is communicated with an air delivery device, an air outlet of the three-way 71 is connected to the endotracheal tube or the laryngeal mask, a pressure measuring port of the three-way 71 is communicated with the telescopic prop 5, the telescopic prop 5 extends and retracts at the pressure measuring port along with the change of the air pressure in the three-way, a transmission mechanism 8 for driving the pressure pointer 6 to rotate is fixed to the other end of the telescopic prop 5, the transmission mechanism 8 includes a rack 81 consistent with the extending and retracting direction of the telescopic prop 5 and a gear 82 engaged with the rack 81, the gear is rotatably connected to the bottom cover 2 through a gear shaft 83 fixed to the bottom cover 2, the lower end of the gear shaft 83 is rotatably installed in the rotating shaft seat 22, and the pressure pointer 6 is fixed to the top end of a gear shaft 83 penetrating through the top cover 1 and is in interference fit with the gear shaft 83.

The telescopic ejector rod 5 stretches along with the pressure in the tee joint 71, the rack 81 connected with the telescopic ejector rod 5 horizontally moves left and right along with the telescopic ejector rod 5 during stretching, the gear 82 meshed with the rack 81 drives the pressure pointer 6 on the gear shaft 83 to rotate, the numerical value indicated by the pressure pointer 6 on the pressure dial and the pressure of the throat or trachea cannula at the moment are converted into rotation angles through the gear 82 and the rack 81 which are meshed with each other, so that the small linear movement distance is converted into a large angle display area, the length of the pressure pointer 6 is matched, the pressure change display is further amplified, and the pressure measurement accuracy can be improved.

The telescopic ejector rod 5 is stable in structure, is not easy to age due to environmental influence, is simple to manufacture, and can effectively reduce cost.

Specifically, the end that telescopic ejector rod 5 is connected with drive mechanism 8 is equipped with two circular snap rings 51, snap ring 51 and telescopic ejector rod 5 integrated into one piece, the one end that tee bend 71 was kept away from to rack 81 is provided with annular connecting slot 81b perpendicularly, and connecting slot 81b card is established between two snap rings 51.

In this embodiment, the upper and lower surfaces of the rack 81 are provided with strip-shaped guide blocks in the same direction as the rack 81, and correspondingly, the top cover 1 and the bottom cover 2 are provided with strip-shaped guide grooves 3, the two ends of the guide blocks are cylindrical and fit with the guide grooves 3, and the guide blocks can reciprocate in the guide grooves 3.

As shown in fig. 3-4, the bottom cover 2 and the top cover 1 are both circular, the left and right sides of the opposite surfaces of the bottom cover 2 and the top cover 1 are provided with mounting grooves 9 enclosing an inlet and an outlet, the air outlet of the tee 71 and the air inlet of the check valve 72 communicated with the tee 71 are clamped and embedded in the mounting grooves 9, wherein the mounting grooves 9 enclosing the inlet of the top cover 1 and the bottom cover 2 are provided with limit grooves engaged with limit rings 72a on the check valve 72, so that the three-way component 7 can be conveniently mounted, the left and right movement of the three-way component 7 can be limited, and the structural stability of the pressure indicator can be maintained; the bottom 2 is interior along being provided with round cylindrical slot 21, and is corresponding, and top 1 is interior along being provided with round cylindrical grafting post 11, and during the equipment, top 1 pegs graft in slot 21 through grafting post 11, realizes closing with the lid of bottom 2.

Meanwhile, in order to reduce the area occupied by the rack 81 and further reduce the area of the pressure indicator, and save the manufacturing cost, one end of the rack 81 close to the tee 71 is positioned in the U-shaped groove 71a formed outside the tee 71.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The pressure indicator comprises a top cover and a bottom cover, wherein the top cover and the bottom cover are covered together to form a containing cavity, a pressure dial and a rotatable pressure pointer are arranged at the upper end of the top cover, a three-way component is fixed in the containing cavity, and an air inlet and an air outlet of the three-way component extend out of the containing cavity.

2. The pressure indicator of claim 1, wherein the transmission mechanism comprises a rack aligned with the extension direction of the telescopic ram and a gear engaged with the rack, the gear is rotatably connected with the bottom cover through a gear shaft fixed on the bottom cover, and the pressure pointer is fixed on the top end of the gear shaft penetrating through the top cover and is in interference fit with the gear shaft.

3. A pressure indicator as claimed in claim 1, wherein a transparent protective cover is inserted over the top of the cap, the pressure dial and pressure indicator being located within the protective cover.

4. The pressure indicator as claimed in claim 2, wherein the end of the telescopic ejector rod connected with the transmission mechanism is provided with two circular snap rings, the end of the rack far away from the three-way component is vertically provided with an annular connecting snap groove, and the connecting snap groove is clamped between the two snap rings.

5. The pressure indicator of claim 2, wherein the rack has a bar-shaped guide block on the upper and lower surfaces, the bar-shaped guide block is aligned with the moving direction of the rack, and correspondingly, the top cover and the bottom cover have bar-shaped guide grooves, the two ends of the guide block are cylindrical and fit with the guide grooves, and the guide block can move back and forth in the guide grooves.

6. The pressure indicator of claim 1, wherein the bottom cover and the top cover are provided with mounting grooves on left and right sides of opposite surfaces thereof, the mounting grooves enclosing an inlet and an outlet, the three-way assembly comprises a three-way joint and a one-way valve connected with an inlet of the three-way joint, an outlet of the three-way joint and the one-way valve are clamped in the mounting grooves, and the mounting grooves enclosing the inlet of the top cover and the bottom cover are provided with limiting grooves engaged with limiting rings on the one-way valve.

7. The pressure indicator of claim 1, wherein the bottom cap has a cylindrical socket formed on an inner edge thereof and the top cap has a cylindrical socket formed on an inner edge thereof.

8. The pressure indicator of claim 5, wherein an end of the rack proximate the tee is positioned within a U-shaped recess formed on an exterior of the tee.