TWM480066U - Pressure gauge - Google Patents

Description

Pressure gauge

The creation pressure gauge can transmit pressure flow and display the pressure value. The air pressure can be kept within the safe value by the help of the vent hole, and can be applied to the entity of the air compressor.

At present, the pressure gauge can be divided into electronic and mechanical type. The electronic pressure gauge is combined with the electronic components of the pressure sensor and related applications to achieve the measured pressure value and displayed, as in the application No. TW093124608. Mechanical pressure gauges are commonly used in retractable Baden tubes, gears, connecting rods and shafts with springs, as applied for TW088203528; instead of using gears, diaphragms, sliding shaft tips, sliding cylinder seats, spirals Wire, spring and pressure gauges for displaying hands, such as application No. TW6510501. Whether it is an electronic or mechanical pressure gauge, the design is not only different, but also can be used to measure the pressure and display the value of the use of the effect. Only the creator has developed a kind of creation that can perform pressure measurement more accurately and accurately, and at the same time reproduce the pressure value without using electronic components and without having to equip the pointer.

The reason is:

The main purpose of the present invention is to provide a pressure gauge comprising a main body, one end of the main body can be combined with a cover body, and the other end can receive the pressure output from the pressure source, and a piston tube is installed in the main body. The piston cylinder acts as a main spring and An auxiliary spring, when the initial pressure of the input enters the main body, allows the piston cylinder to first act on the auxiliary spring with a small spring coefficient, and then acts on the main spring with a large spring coefficient, so that the pressure gauge can perform a more sensitive and precise pressure value measurement.

Another object of the present invention is to provide a pressure gauge. The main system of the pressure gauge is a transparent cylindrical pipe body, and a pressure value is digitally depicted on the pipe body, and a color of the color is set near the end of the piston cylinder. The ring, when the cylinder is moved by the input pressure, the colored O-ring of the color is convenient for the user to visually recognize and know the current state of the pressure value.

A further object of the present invention is to provide a pressure gauge having a safety protection function, penetrating a vent hole on the main body, and reaching a set safety pressure maximum when the piston cylinder is continuously pressed by the input pressure, the piston The colored O-ring of the cylinder can just cross the venting hole, allowing the input pressure to escape from the venting hole and no longer being able to push the cylinder.

A further object of the present invention is to provide a pressure gauge that can be conveniently coupled to an automotive air compressor unit, the connector of the body of the pressure gauge being coupled in series with the air intake manifold of the air compressor.

The specific construction and its efficacy according to the present invention for the purpose of the above-mentioned purposes are illustrated by the following figures.

(1) ‧‧‧ Subject

(10) ‧‧‧Open end

(11) ‧‧‧Content Room

(12)‧‧‧A male thread

(13) ‧ ‧ tail

(14)‧‧‧Inlay body

(15)‧‧‧Connectors

(16)‧‧‧O-ring

(17)‧‧‧O-ring

(18) ‧‧‧Wings

(19) ‧ ‧ display screen

(191)‧‧‧ Venting holes

(2) ‧‧‧ piston cylinder

(20) ‧‧‧Open end

(21) ‧‧‧Content Room

(22)‧‧‧ Large shaft column

(221)‧‧‧Top Taiwan

(222) ‧ ‧ ring pocket

(23)‧‧‧Small shaft column

(24)‧‧‧Bottom seat

(25)‧‧‧ Ring groove

(26) ‧‧‧ recesses

(27)‧‧‧Colored O-rings

(3) ‧‧‧ main spring

(4)‧‧‧Auxiliary spring

(5) ‧ ‧ cover

(50)‧‧‧Female threads

(51)‧‧‧ center seat

(511)‧‧‧Top Taiwan

(52)‧‧‧ Center tube

(520) ‧‧‧Content Room

(521) ‧ ‧ openings

(53) ‧‧‧Circle

(54) ‧‧‧ channels

(55)‧‧‧through holes

(6) ‧‧‧Air compressor

(60)‧‧‧Motor

(61) ‧‧ ‧ cylinder

(62) ‧‧‧Pistons

(63)‧‧‧Air reservoir

(64) (65) ‧‧‧Management

(66)‧‧‧Hose

(67)‧‧‧ gas nozzle

(68)‧‧‧ Panel

(69)‧‧‧Transmission mechanism

(7)‧‧‧ ladder joints

(8)‧‧‧Threaded joints

The first picture: an exploded view of the creation pressure gauge.

The second picture: the complete picture of the combination of the creation pressure gauge.

The third picture: a sectional view of the pressure gauge of the creation.

The fourth picture is a sectional view of the action of the piston tube of the creation pressure gauge.

The fifth picture shows the implementation state diagram of the air pressure compressor assembled in the air compressor.

Fig. 6 is a view showing another configuration example of the body joint of the present pressure gauge.

Figure 7 is a diagram showing a further embodiment of the main body of the pressure gauge of the present invention.

Please refer to the first to fourth figures. The pressure gauge of the present invention comprises a main body 1 which has a transparent cylindrical shape and has a content chamber 11 with an open end 10 at one end and a male thread 12 and a tail end at the other end. 13 is provided with a pair of inserting bodies 14, and a connecting head 15 is further disposed at the outer center of the tail end 13. The connecting head 15 has an inner passage 150 communicating with the main body content chamber 11, and two joints are arranged on the connecting head 15. O-rings 16, 17. The main body 1 is provided with a digitally-depicted display screen 19 near the tail end 13, and the main body 1 at the middle portion is provided with two opposite wing blocks.

a piston barrel 2, which is still an open end 20 at one end and a bottom end seat 24 at the other end. The piston barrel 2 has a content chamber 21 therein, and the bottom end seat 24 extends at the center of the bottom of the content chamber 21. A large shaft column 22 is formed at the open end 20, and a ring pocket 222 is formed between the bottom of the large shaft column 22 and the cylinder wall of the cylinder tube (refer to the third figure), and a smaller diameter is further extended at the top end portion of the large shaft column 22. And the short small shaft column 23 is formed, and the top end portion of the large shaft column 22 is formed as a top turn 221 . A recess 26 is formed on the outer surface of the bottom end seat 24, and a ring groove 25 is disposed on the peripheral side to cover a colored O-ring 27. The entire piston barrel 2 can be received into the body 1 and the bottom end seat 24 abuts against the bottom of the content chamber 11. The passage 150 of the joint head 15 can communicate with the recess 26 of the bottom end seat 24, so that the input pressure of the pressure source can be The passage 150 and the recess 26 are pressed against the piston barrel 2, and the piston barrel 2 can be moved in the content chamber 11 of the main body 1.

An elastic element, such as a spring, utilizes a main spring 3 having a relatively high modulus of elasticity that can be received into the interior chamber 21 of the piston barrel 2 and that surrounds the periphery of the large shaft post 22, the main spring One end of the 3 is just opposite to the ring pocket 222, and the outer diameter edge of the main spring 3 abuts against the inner wall surface of the piston barrel 2.

a cover body 5 is provided with a female thread 50, and a center seat 51 is disposed at the center of the inner surface of the cover body. The center seat 51 and the inner side wall of the cover body 5 form a ring-shaped groove 53 extending at the top end of the center block 51. The center cylinder 52 of the content chamber 520 has an opening 521 at the end thereof. The inner diameter of the inner chamber 520 is larger than the outer diameter of the large shaft column 22, but the outer diameter of the center cylinder 52 is smaller than the inner diameter of the main spring 3. An auxiliary spring 4 having a small elastic modulus may be installed in the content chamber 520 of the center cylinder 52, and one end of the auxiliary spring 4 abuts against the top sill 511 of the upper surface of the center seat 51 below the center cylinder 52, when the cover After the body 5 receives the open end 10 of the main body 1 in the annular groove 53 and is screwed and fixed, the other end of the auxiliary spring 4 can surround the small shaft column 23 and abut against the top sill 221 of the large shaft column 22, the auxiliary spring. The outer diameter edge of 4 is accessible to the inner cylinder wall of the center barrel 52. The outer surface of the cover body 5 is provided with a through hole 55 and a passage 54 extending through the center seat 51. The passage 54 is in communication with the content chamber 520 of the center cylinder 52, and the main body 1, the piston tube 2, the main spring 3, the auxiliary spring 4, After the colored O-ring 27, the O-rings 16, 17 and the cover 5 are completely combined, a pressure gauge as shown in FIG. 2 can be formed.

The action of the creation pressure gauge can refer to FIG. 2 to FIG. 5 at the same time. For example, the pressure source of the air compressor is used. The air compressor 6 has a motor 60, a cylinder 61, a piston 62, and an air reservoir 63. The transmission mechanism 69 drives the piston 62 to reciprocate in the cylinder 61. The compressed air is directly outputted from the manifolds 64 and 65 around the air reservoir 63. The manifold 64 is coupled to a hose 66 having a nozzle 67 at one end thereof. The mouth 67 can be incorporated into any item to be inflated or requiring compressed air, such as by being attached to a car tire for pumping. The amount of air output by the manifold 65 is also synchronized with the output air of the manifold 64 as the compressed air continues to output. Quantity, so the pressure gauge can measure the change in the current pressure value. The compressed air output by the manifold 65 can be introduced into the main body 1 from the passage 150 of the main body connector 15, and the input pressure is directly communicated with the passage 150 by the recess 26 provided in the bottom end seat 24 of the piston barrel 2. Relationship, input pressure can force the piston The main spring 3 and the large shaft column 22, which are urged by the cylinder 2, are biased to the auxiliary spring 4 located in the center cylinder 52, and the continuous input pressure can be moved by the cylinder 2 to move toward the cover 5, which is generated at the moment. The pressure value can be determined by the transparent body 1 to indicate the digital embossed pressure value of the colored O-ring 27 on the display screen 19. The pressure measurement process of the pressure gauge can be as shown in Figures 3 and 4.

The insert body 14 and the joint 15 provided on the tail end 13 of the body of the creation pressure gauge can be designed according to the characteristics of the article providing the pressure source. The structure on the air compressor manifold 65 of FIG. 5 is provided with a rectangular panel. 68, allowing the pressure gauge to be quickly coupled to the manifold 65. If the manifold 65 is not provided with the panel 68, the pressure gauge main body 1 is provided with a ladder joint 7 inserted into the hose extended on the manifold 65, as shown in FIG. If the manifold 65 is of a design with a female thread, the body 1 is provided with a male threaded joint 8 as a fit, as shown in FIG.

When the pressure gauge is applied to an air compressor and is installed in an air compressor device for a vehicle, since the device has a casing for assembling the air compressor and the pressure gauge, a pair of wings are provided on the main body 1 of the pressure gauge. Block 18, which allows for easy card attachment to the ribs or pockets of the casing to achieve stability requirements.

The creation pressure gauge is provided with a main spring 3 having a large elastic modulus and an auxiliary spring 4 having a small elastic modulus. When the pressure source supplies the initial pressure into the main body 1 of the pressure gauge, the auxiliary spring 4 is first acted and can react sensitively. The small pressure value at the initial state, the continuously increasing pressure allows the piston barrel 2 to compress the main spring 3 and the auxiliary spring 4 until the inflation to be inflated is completed. After the pressure gauge is disengaged from the inflated object, the outside air can enter the main body through the passage 54 of the cover body, and the restoring force of the spring can return the piston cylinder 2 to the original initial position. For safety protection purposes, when the input pressure value is greater than the safe pressure value, since the colored O-ring 27 provided on the bottom end seat 24 of the cylinder has crossed the vent hole 191, the input pressure continuously entering the inside of the pressure gauge will be Therefore, the vent hole 191 is vented to the outside, and the item to be inflated is not damaged, and the bullet is also protected. The spring is not deformed by the pressure of the overload.

Looking at the predecessor, the construction of the pressure gauge of the present invention can be applied to two main springs 3 and auxiliary springs 4 having different elastic coefficients by a piston cylinder 2, which not only has a different structural design than the conventional ones, but also can measure pressure more accurately and sensitively. The value is quite practical. At the same time, the venting hole is used as an inflation operation to prevent overpressure, and the safety effect is replenished. This creation is obviously novel and progressive, and is a patent application.

(1) ‧‧‧ Subject

(10) ‧‧‧Open end

(12)‧‧‧A male thread

(13) ‧ ‧ tail

(14)‧‧‧Inlay body

(15)‧‧‧Connectors

(16)‧‧‧O-ring

(17)‧‧‧O-ring

(18) ‧‧‧Wings

(2) ‧‧‧ piston cylinder

(20) ‧‧‧Open end

(21) ‧‧‧Content Room

(22)‧‧‧ Large shaft column

(221)‧‧‧Top Taiwan

(23)‧‧‧Small shaft column

(24)‧‧‧Bottom seat

(25)‧‧‧ Ring groove

(27)‧‧‧Colored O-rings

(3) ‧‧‧ main spring

(4)‧‧‧Auxiliary spring

(5) ‧ ‧ cover

(55)‧‧‧through holes

Claims (10)

A pressure gauge comprising: a main body having a cylindrical shape and having a content chamber having an open end at one end and a tail end accepting an input pressure of a pressure source, the main body being disposed near the end end a display screen with a digital depiction; a piston cylinder having an open end at one end and a bottom end seat at the other end; the piston barrel has a content chamber therein, the piston cylinder can be accommodated in the content chamber of the main body; The body is provided with a female thread and can be locked to the open end of the main body; the elastic element can be accommodated in the main body, one end of which is abutted against the bottom of the content chamber of the piston tube, and the other end can be abutted against the cover body; In combination, the pressure input to the body by the pressure source actuates the piston barrel to compress the elastic element, and the digital display port displays the pressure value. The pressure gauge according to claim 1, wherein the cylindrical body is made of a transparent material, the outer surface of the bottom end of the piston tube is further formed with a recess, and a ring groove is sleeved on the peripheral side. A colored O-ring allows the operator to see through the colored O-ring in the body and the digital depiction of the colored O-ring on the display screen, allowing the user to see the current pressure value. The pressure gauge of claim 1, wherein the bottom end of the piston tube extends at a center of a bottom portion of the content chamber and extends through a large shaft column extending from the open end, and the bottom of the large shaft column and the piston barrel A ring recess is formed between the cylinder walls, and the elastic member may be a main spring, and one end of the main spring abuts against the ring recess. The pressure gauge according to claim 3, wherein the piston tube further extends a small diameter and a short small shaft column at a top end portion of the large shaft column, and forms a top portion of the top end portion of the large shaft column.垣, the entire piston cylinder is accommodated in the main body and the bottom end seat is placed at the bottom of the content chamber a connecting head is disposed at the outer center of the tail end of the main body, and the connecting head has an inner passage communicating with the main body room, and two separated O-rings are mounted on the connecting head, and the connecting end and the bottom end of the connecting head The pockets of the seat can be connected to each other so that the input pressure of the pressure source can be pressed to the piston cylinder through the passage and the recess, and the piston cylinder can be moved in the main body chamber. The pressure gauge according to claim 3, wherein a center seat is disposed at a center of the inner surface of the cover body, and a central groove is formed between the center seat and the inner side wall of the cover body, and a center having a content room is extended at a top end of the center seat. The cylinder has an opening at the end of the central cylinder, and the inner diameter of the inner chamber is larger than the outer diameter of the large shaft column, but the outer diameter of the central cylinder is smaller than the inner diameter of the main spring, and an auxiliary spring having a smaller elastic coefficient can be installed. In the content chamber of the central cylinder, one end of the auxiliary spring abuts against the top sill of the upper surface of the central seat below the central cylinder, and the auxiliary spring is fixed when the cover body receives the open end of the main body by the annular groove and is screwed and fixed. The other end of the sleeve can be placed around the small shaft column and against the top of the large shaft column. The pressure gauge according to claim 5, wherein the outer surface of the cover is provided with a through hole and a passage through the central seat, and the passage is in communication with the content chamber of the central cylinder. The pressure gauge according to claim 1 or 2, wherein the main body is provided with a penetrating venting hole, and when the piston cylinder is continuously pushed by the input pressure to reach a set maximum safety pressure, the cylinder is colored O-shaped. The ring just crosses the venting hole, allowing the input pressure to escape from the venting hole and no longer pushing the cylinder. The pressure gauge according to claim 1, wherein an end body is provided with an inlay body; an air compressor has a motor, a cylinder, a piston and a gas storage cylinder, and the motor is driven by the transmission mechanism. The piston reciprocates in the cylinder, and the compressed air is directly outputted from the manifold around the gas cylinder. The manifold is connected to a hose having a nozzle at one end thereof, and the nozzle can be combined with any item to be inflated or requiring compressed air. Above, a rectangular panel is arranged at the end of the manifold, so that the clamping body of the end of the main body of the pressure gauge can be coupled to the moment Shaped panels, compressed air from the air compressor can enter the interior of the body. The pressure gauge of claim 8, wherein the tail end of the main body is provided with a ladder joint, and the ladder joint can be inserted into the hose extended on the manifold. A pressure gauge according to claim 8, wherein a male threaded joint is provided on the tail end of the body, and the male threaded joint can be screwed onto the manifold having a female thread.