TWI721451B - Air compressor capable of making warning sounds and releasing pressure - Google Patents

Abstract

An air compressor is capable of making warning sounds and releasing pressure of a tire. The air compressor contains a transmission belt made of flexible material so as to reduce noises, and the air compressor contains an alert mechanism configured to make warning sounds so as to remind the operator to release pressure, thus avoiding high pressure of the tire and to prolong a service life of the air compressor.

Description

Air compressor with warning sound and pressure relief function

The present invention is an air compressor with a warning sound and a pressure relief function, in particular, it refers to an air compressor that uses a soft and tough material transmission belt as a transmission mechanism to reduce environmental noise, so that the warning mechanism connected to the air compressor amplifies the sound It can obtain better recognition. It is a kind of invention that has the function of reminding the operator to pay attention to and has a pressure relief function, which can effectively prevent the damage caused by the excessive pressure of the tire, and can make the air compressor last longer. .

The inventor has been committed to the research and development of small air compressors for a long time. Not only did the early time-consuming and cumbersome air compressors be transformed into products with simple structure and easy to assemble quickly, or the structure of the air compressor was improved to strengthen the air. The efficiency of the compressor. For example, in early air compressors, there were only two ducts on the air storage seat, one duct was used to install a circular box-shaped pressure indicator, and the other manifold was used to connect with an air nozzle at one end ( The air nozzle can be connected to the hose of the object to be inflated. Since only two air outlet manifolds are provided, the protective function and safety function of the air compressor are restricted. Therefore, the inventors developed such as US No. The air compressor of Patent No. 7,462,018 allows the air compressor to be optionally equipped with a pressure safety valve (safety valve) due to its multi-manifold (duct) structure. The pressure safety valve (safety valve) used is a safety device When the pressure of the compressed air exceeds the set safety pressure value, the pressure relief valve will automatically release the pressure to provide protection; the manifold can also be equipped with a relief valve, which is a pressure relief valve system. The pressure is relieved manually. When the pressure value of the compressed air is overpressured, the pressure can also be relieved by pressing the pressure relief valve and prevent possible damage to the inflated object due to overpressure. Only known that this kind of air compressor is almost a round box pressure gauge installed in the compressor. This kind of round box pressure gauge uses a mechanical pointer type to display the pressure value generated by the compressor in action. However, due to the factor of light, such as in the use environment at night, it is difficult for users to see the current pressure value visually. Perhaps the compressor is equipped with a pressure safety valve as an auxiliary protection function. However, if the pressure safety valve happens to fail, and the user cannot easily see the current air pressure value, it may cause the air compressor to improperly inflate the inflatable object due to overpressure. According to It can be seen that the conventional static type round box pressure gauge without any warning effect is still unable to reach an excellent level in use. On the other hand, in order to prevent the problem of overpressure in the conventional air compressor, a safety valve (safety valve) is installed in one of the ducts. Although it provides protection, it also increases the manufacturing cost. The safety valve (safety valve) is stuck due to a long service life. In the process of tire inflation, it will cause the tire to be over-inflated and even cause the risk of tire blowout, or the air compressor will be used for too long inflation. The phenomenon of temperature rise and overheating may also cause the failure of the air compressor; and the transmission of traditional air compressors is mostly two gear meshing transmission, the friction and impact between the gears will produce loud noise, and will cause continuous use. Damage caused by gear chipping. The inventor of the present invention is in view of the fact that the pressure gauge installed in the conventional air compressor cannot perform the function of reminding the user's attention and has a warning. If a safety valve is installed to prevent the air compressor from generating overpressure, this phenomenon is bound to increase The manufacturing cost of the industry, and the conventional transmission mechanism of two gears meshing and interlocking will produce a lot of noise. For this reason, the present inventor has developed and improved, and hopes to provide an air compressor that can eliminate the need to install a pressure relief valve, while reducing The environmental noise generated by the transmission mechanism also reminds the user to have a warning function and a pressure relief function, which can effectively prevent damage caused by excessive tire pressure, and can also make the air compressor have a longer life.

The main purpose of the present invention is to provide an air compressor with a warning sound and a pressure relief function. The air compressor uses a flexible transmission belt as a transmission mechanism to reduce environmental noise.

The secondary objective of the present invention is to provide an air compressor with a warning sound and a pressure relief function. The manifold provided on the air reservoir of the air compressor is provided with a warning mechanism. The warning mechanism is It can produce high-frequency vibrato to remind the user when the pressure value continues to rise.

Another object of the present invention is to provide an air compressor with a warning sound and a pressure relief function. The warning mechanism provided in the air compressor can be used when the pressure value continues to increase. The cap-shaped sliding cover will be pushed by compressed air to perform high-frequency, rapid and slight lifting movements.

Another object of the present invention is to provide an air compressor with a warning sound and a pressure relief function. The warning mechanism of the air compressor also has an automatic pressure relief function, which effectively prevents the tire pressure from being too high. The damage can also increase the life of the air compressor.

In order to understand the structure of the present invention in more detail, please refer to the first and second figures. The present invention provides an air compressor with a warning sound and a pressure relief function. The air compressor provides a piston body 25 for operation. The cylinder 3 and the main frame 1 for fixing the motor 2. The cylinder 3 and the main frame 1 can be designed to be integrally formed, or they can be separated and combined. The main frame 1 can fix the air compressor The power mechanism includes a motor 2, an hour gauge gear 21 for transmission purposes, a large hour gauge gear 22 with a crank pin 24, and a soft hour gauge gear that can be connected to the hour gauge gear 21 and then linked with the large hour gauge gear 22 Tough drive belts and cooling fan blades 26 for heat dissipation, etc. The motor 2 drives the power mechanism of the air compressor so that the piston body 25 can perform reciprocating compression in the compression chamber 35 of the cylinder 3 (refer to the sixth figure at the same time), and the compressed air can push the valve through the air hole 34 The seat 41 is used to compress the spring 42 so that the compressed air can enter the air storage seat 5. The air storage seat 5 is used to store the generated compressed air, and the air storage seat 5 is provided with one or more air outlets Manifolds 53, 54. The one manifold 53 can be used to connect hoses of pneumatic tires (not shown in the figure), and the other manifold 54 can be used to set up a warning mechanism 6, which can be installed at When the pressure value continues to increase, a high-frequency vibrato is produced to remind the user, and the warning mechanism 6 also has a pressure relief function, which effectively prevents damage caused by excessive tire pressure, and can make the air compressor have a longer life and allow the user It is safer and more effective to operate the air compressor.

The main frame 1 is provided with a first positioning hole 11 and a second positioning hole 12 separated from each other. Long positioning holes 13 are provided on the left and right sides of the first positioning hole 11, and the first positioning hole 11 penetrates There is an hour gauge gear 21 at the core end of the motor 2, and the motor 2 can use a stud 131 to pass through the long positioning hole 13 and be locked on the main frame 1 (refer to the second and third pictures), and the first A bearing 121 is installed in the two positioning holes 12, and a blocking wall 120 is provided at the lower end of the second positioning hole 12 where the bearing 121 is installed, which can prevent the bearing 121 from falling off in the axial direction of the second positioning hole 12; After the crank pin 24 on the large timing gear 22 is pivoted, the piston body 25 is placed in parallel in the cylinder 3 and the central shaft hole 220 of the large timing gear 22 corresponds to the second positioning hole of the main frame 1 12, the center of the bearing 121 installed in the main frame 1 passes through the center of the bearing 121 installed in the main frame 1 to the large timing gear 22 by a central bolt 221, and is screwed and fixed in the central shaft hole 220; The transmission belt made of material may be a timing belt 23, which meshes with the large timing gear 22 and the hour gear 21 at the same time.

Please refer to the third figure. Let the axis of the large hour gear 22 be P1, and the axis of the hour gear 21 is P2. Based on the central longitudinal axis V of the first positioning hole 11, the axis P2 is located at the On the central longitudinal axis V of a positioning hole 11, the distance between the two shaft centers P1 and P2 is X. Among them, the shaft center P1 of the large timing gear 22 is a fixed position, and the present invention uses the long positioning hole 13 as Adjust the distance X between the two axis P1 and P2 to adjust the tightness of the timing belt 23, that is, when the distance between the two axis P1 and P2 is A, the distance A>X, it should be at the same time with the large timing gear 22 and When the hour gauge gear 21 meshes, the timing belt 23 becomes the state of belt tightening, and when the distance between the two axis P1 and P2 is B, and the distance B<X, then it should be at the same time with the big timing gear 22 and the hour The timing belt 23 when the gauge gear 21 is meshed becomes a state where the belt is adjusted loosely.

According to the present invention, the first positioning hole 11 and the second positioning hole 12 can be designed with different distances and angles according to the design requirements, that is, the axis P1 of the aforementioned large time scale gear 22 and the axis center P2 of the hour scale gear 21, The two axes P1 and P2 are designed with different distances and angles.

The cylinder 3 of the air compressor has a top wall 31 and a circular opening edge 32 at the lower open end. The top wall 31 extends horizontally outward and a top wing wall 33. The top wing wall 33 is provided with two correspondingly folded The inlay clip body 331; a cylindrical gas holder 5 with an opening 51 and an inner cavity 52 at one end. The opening 51 of the gas holder 5 extends to the surroundings by an expansion wall 55, and the expansion wall 55 is provided with Two corresponding reflex panels 551, by rotating the air holder 5, the reflex panels 551 of the expansion wall 55 of the air holder 5 can be quickly clamped with the inserts provided on the top wing wall 33 of the cylinder 3 The combination of the body 331 makes the air storage seat 5 very firm and fast to be combined with the cylinder 3, and the cylinder 3 and the air storage seat 5 are a movable combination.

Please refer to the fourth figure, the top wall 31 of the cylinder 3 is provided with an air hole 34. The air hole 34 allows the compression chamber 35 of the cylinder 3 to communicate with the inner space 52 of the air reservoir 5, which is next to the air hole 34 The top wall 31 is formed with an upwardly extending ring-shaped connecting portion 36. The outer peripheral side is provided with a ring groove 361 to be sleeved with a sealing ring 38, and the inner peripheral wall is protruding with a plurality of spaced convex ribs 362. A gap-shaped circulation groove 363 is formed between two adjacent ribs 362; a valve seat 41 is placed in the inner enclosure enclosed by the plurality of ribs 362 arranged in a circle at intervals. 37; a spring 42, one end of which is sleeved on the valve seat 41, the bottom diameter of the valve seat 41 is smaller than the diameter of the inner chamber 37 but larger than the diameter of the air hole 34. The compressed air passing through the air hole 34 can pass between the ribs 362 The circulation groove 363 of the air reservoir circulates into the inner cavity 52 of the air storage seat 5; the inner and the inside of the aforementioned air storage seat 5 extends downward in the central section with a cylindrical column 56, and the air storage seat 5 extends outward from the central section with at least one convex Ring 571. A concave ring groove 50 is formed between the convex ring 571 and the cylindrical column 56. The cylindrical column 56 can be inserted into the other end of the spring 42 and seated in the ring groove 50. .

Please refer to Figures 5 and 6, a warning mechanism 6, which includes a valve bolt 61, the middle section of which extends outwards with a protruding wall 611, and the valve bolt 61 on one side of the protruding wall 611 has a fixed shaft section 612. A blocking ring 62 is clamped to the fixed shaft section 612 of the valve plug 61; a hollow bolt 63 with a passage 630, the diameter of the passage 630 at one end of the hollow bolt 63 is larger than the diameter of the passage 630 at the other end, so that both A stepped convex ring 631 is formed in between; at this time, the valve plug 61 combined with the blocking ring 62 can be placed in the manifold 54. A spring 64 can be sleeved on the valve plug 61, and one end of the valve plug 611 can be pressed against the convex wall 611. On the upper side, the convex ring 631 of the hollow bolt 63 abuts against the other end of the spring 64 and is integrated in the manifold 54; a cap-shaped sliding cover 66, the bottom opening of which extends a bottom wing wall 661 to the surroundings. There is a whistle air chamber 662 in the sliding cover 66, and a magnetic sheet 67 is arranged on the inner top wall of the cap-shaped sliding cover 66. The magnetic sheet 67 of the cap-shaped sliding cover 66 is against the hollow bolt 63 and the cap-shaped sliding cover 66 is sleeved on the hollow bolt 63. The periphery of the manifold 54.

Please refer to Figures 4 to 6, the piston body 25 of the air compressor can perform reciprocating linear motion in the cylinder 3 when it is at the top dead center, it can push the air in the compression chamber 35 of the cylinder 3 to the air reservoir 5 In the inner cavity 52, the hose (not shown in the figure) of the manifold 53 can be output to the object to be inflated, and the piston body 25 of the air compressor continuously pushes the compressed air in the cylinder 3 to the air receiver 5. When the inner space 52 is in the air, the compressed air will enter the warning mechanism 6 of the manifold 54 at the same time. By continuously and repeatedly pushing the compressed air, the inputted compressed air can push the valve plug 61 of the warning mechanism 6 to compress the spring 64, resulting in The blocking ring 62 leaves the inner wall of the manifold 54 that was originally blocked in contact, as shown in the sixth figure, so that the compressed air can flow through the tiny gap between the inner wall of the manifold 54 and the blocking ring 62 to generate high-frequency vibrato And the compressed air can then enter the whistle air chamber 662 of the cap-shaped sliding cover 66 through the passage 630 of the hollow bolt 63 to amplify the sound. When the timing belt 23 is used as a transmission mechanism, the environmental noise can be reduced, and the whistle air chamber 662 Amplifying the sound can get better recognition. At the same time, the cap-shaped sliding cover 66 will be pushed by compressed air to make it perform a high-frequency rapid and slight lifting action. At this time, it also has an automatic pressure relief function to effectively prevent tire pressure. The damage caused by too high can increase the life of the air compressor.

Another embodiment of the present invention can be shown in Figures 7 and 8. The main frame 1 has a third positioning hole 14 on one side of the first positioning hole 11, which can be fixed by a screw 71. Wheel 7, the idler pulley 7 can adjust the tension of the aforementioned timing belt 23, so that the timing belt 23 is surely meshed with the large timing gear 22 and the hour gear 21, preventing the timing belt 23 from slipping and jumping.

In summary, the main technical feature of the present invention is that the use of the timing belt 23 as the transmission mechanism can reduce environmental noise, so that the warning mechanism 6 connected to the air compressor can amplify the sound and obtain better recognition, and the warning mechanism 6 is concurrent With pressure relief function, it can effectively prevent the damage caused by high tire pressure, and can make the air compressor have a longer life, so that the user can operate the air compressor more safely and effectively.

(1) Main frame body (11) First positioning hole (12) Second positioning hole (120) Blocking wall (121) Bearing (13) Long positioning hole (131) Stud (14) Third positioning hole (2) ) Motor (21) Hour gauge gear (22) Large hour gauge gear (220) Central shaft hole (221) Center bolt (23) Timing belt (24) Crank pin (25) Piston body (26) Cooling fan blade (3) ) Cylinder (31) Top wall (32) Opening edge (33) Top wing wall (331) Insert body (34) Air hole (35) Compression chamber (36) Connecting part (361) Ring groove (362) Rib (363) ) Circulation groove (37) inner enclosure (38) sealing ring (41) valve seat (42) spring (5) air reservoir (50) ring groove (51) opening (52) inner cavity (53) (54) Manifold (55) Amplification Wall (551) Reversed Panel (56) Cylindrical Column (571) Convex Ring (6) Warning Mechanism (61) Valve Bolt (611) Convex Wall (612) Fixed Shaft Section (62) ) Blocking ring (63) Hollow bolt (630) Channel (631) Convex ring (64) Spring (66) Cap slide (661) Bottom wing (662) Whistle air chamber (67) Magnetic sheet (7) ) Idler gear (71) Screw (P1) (P2) Axle center (V) Central longitudinal axis (X) (A) (B) distance

The first figure: is a three-dimensional view of the air compressor with warning sound and pressure relief function of the present invention. Figure 2: is a three-dimensional exploded view of the air compressor with warning sound and pressure relief function of the present invention. Figure 3: A plan view of the air compressor with warning sound and pressure relief function of the present invention. Figure 4: is a cross-sectional view of the air compressor with warning sound and pressure relief function of the present invention. Figure 5: is a schematic diagram of the initial position of the cap-shaped sliding cover of the warning mechanism of the present invention. Figure 6: is a schematic diagram of the action of the cap-shaped sliding cover of the warning mechanism of the present invention being pushed by compressed air. Figure 7: is a diagram of another embodiment of the present invention. The eighth picture: is the plan view of the seventh picture.

(1) Main frame body (11) First positioning hole (12) Second positioning hole (121) Bearing (13) Long positioning hole (131) Stud (2) Motor (21) Hour gauge gear (22) Large Timing gear (220) Central shaft hole (221) Center bolt (23) Timing belt (24) Crank pin (25) Piston body (26) Cooling fan blade (3) Cylinder (32) Opening edge (33) Top wing Wall (331) Inserted clip body (5) Air reservoir (53) (54) Manifold (551) Reversed panel (6) Warning mechanism (66) Cap slide

Claims (9)

An air compressor with a warning sound and a pressure relief function. It provides a cylinder for the operation of the piston body and a main frame for fixing the motor. The main frame can fix the power mechanism of the air compressor and is driven by the motor The power mechanism of the air compressor enables the piston body to perform reciprocating compression in the compression chamber of the cylinder, and the compressed air can enter the air storage seat through the air hole. The feature is that the main frame has a partition The first positioning hole and the second positioning hole are provided with long positioning holes on the left and right sides of the first positioning hole. The first positioning hole extends through an hour gauge gear provided at the end of the motor core, and the motor can use a screw The column passes through the long positioning hole and is locked on the main frame. The second positioning hole is equipped with a bearing. A blocking wall is provided at the lower end of the second positioning hole where the bearing is installed, which can prevent the bearing from running along the first 2. The positioning hole falls off axially; after pivoting the piston body to the crank pin on the large timing gear, then place the piston body parallel to the cylinder and make the central shaft hole of the large timing gear correspond to the main frame The center of the bearing installed in the second positioning hole is then passed through the center of the bearing installed in the main frame by a center bolt to the large timing gear and screwed and fixed in the center shaft hole; a drive belt made of soft and tough material At the same time, it meshes with the large hour gear and hour gear, and the use of the soft and tough transmission belt of the power mechanism as the transmission mechanism can reduce environmental noise, so that the warning mechanism connected to the air compressor can amplify the sound and obtain better recognition. The conventional air compressor uses the meshing of two gears as the transmission mechanism, which can cause tooth collapse during continuous operation or high pressure, and the warning mechanism also has a pressure relief function, which effectively prevents damage caused by excessive tire pressure. , It can also make the air compressor have a longer life, so that the user can operate the air compressor safely and effectively. The air compressor with warning sound and pressure relief function as described in claim 1, wherein the transmission belt made of soft and tough material can be a timing belt. The air compressor with warning sound and pressure relief function as described in claim 2, wherein the axis of the large hour gear is P1, and the axis of the hour gear is P2. The central longitudinal axis V of the first positioning hole is the reference, the axis P is located on the central longitudinal axis V of the first positioning hole, and the distance between the two axis P1 and P2 is X. Among them, the axis P1 of the large timing gear To fix the position, it uses the long positioning hole to adjust the distance X between the two shaft centers P1 and P2 to adjust the tightness of the timing belt, that is, when the distance between the two shaft centers P1 and P2 is A, the distance A> X. When the timing belt system is meshed with the large timing gear and hour gear at the same time, the belt will become the state of belt tightening. When the distance between the two axis P1 and P2 is B, the distance B<X, then the same time The timing belt system meshed with the large timing gear and the hour gear becomes a state of loose belt adjustment. The air compressor with warning sound and pressure relief function as described in claim 3, wherein the first positioning hole and the second positioning hole can be designed with different distances and angles according to the design requirements, that is, let The shaft center P1 of the large hour gear and the shaft center P2 of the hour gear, the two shaft centers P1 and P2 are designed with different distances and angles. The air compressor with warning sound and pressure relief function as described in claim 1, wherein the cylinder of the air compressor has a top wall and a circular opening edge with a lower opening end, and the top wall extends horizontally outward A top wing wall on which there are two correspondingly folded inserts; a cylindrical gas holder with an opening and an inner hollow at one end, and the opening of the gas holder expands to the surroundings. The expansion wall is equipped with two corresponding reflex panels. By rotating the air reservoir, the reflex panel of the expansion wall of the air reservoir can be quickly aligned with the top wing wall of the cylinder. The combination of the inlay body makes the air storage seat very firm and fast to be combined on the cylinder, and this cylinder and the air storage seat are a movable combination. The air compressor with warning sound and pressure relief function as described in claim 5, wherein the top wall of the cylinder is provided with an air hole which allows the compression chamber of the cylinder and the inner space of the air reservoir Connected with each other, the top wall next to the air hole is formed with an upwardly extending ring-shaped connecting part, the outer peripheral side is provided with a ring groove to be sleeved with a sealing ring, and the inner peripheral wall is protruding with a plurality of spaced convex protrusions. Rib, forming a void-like circulation between two adjacent ribs Groove; a valve seat, which is placed in the inner enclosure enclosed by the aforementioned plural convex ribs arranged in a circle; a spring, one end of which is sleeved on the valve seat, the bottom of the valve seat The diameter is smaller than the diameter of the inner enclosure but larger than the diameter of the air hole. The compressed air passing through the air hole can circulate into the inner cavity of the air holder through the circulation groove between the ribs; the inner inside of the aforementioned air holder extends downward in the central section. A cylindrical column, and the air storage seat has at least one convex ring extending outward from the central section. A concave ring groove is formed between the convex ring and the cylindrical column. The cylindrical column can be sleeved on the other end of the spring And let it sit in the ring groove. The air compressor with warning sound and pressure relief function as described in claim 1, wherein the air storage seat is used to store the generated compressed air, and the air storage seat is provided with one or more The outlet manifold, the one manifold can be used to connect the hose of the pneumatic tire, and the other manifold can be used to set the aforementioned warning mechanism, which can generate high-frequency vibrato to remind when the pressure value continues to rise The user allows the user to operate the air compressor more safely and effectively. The air compressor with warning sound and pressure relief function as described in claim 7, wherein the warning mechanism includes a valve plug, the middle section of which extends outwards with a convex wall, and the valve on one side of the convex wall The bolt is provided with a fixed shaft section; a blocking ring is clamped to the fixed shaft section of the valve bolt; and a hollow bolt with a passage, the passage diameter of one end of the hollow bolt is larger than the passage diameter of the other end, so that both A stepped convex ring is formed in between; at this time, the valve plug combined with the blocking ring can be placed into the manifold, a spring can be sleeved on the valve plug, and one end of the spring can be placed on the convex wall, and then the hollow plug The convex ring is in contact with the other end of the spring and is integrated in the manifold; a hat-shaped sliding cover, the bottom opening of which extends a bottom wing wall, the hat-shaped sliding cover has a whistling air chamber, and its inner top wall A magnetic sheet is provided. The magnetic sheet of the cap-shaped sliding cover is against the hollow bolt and the cap-shaped sliding cover is sleeved on the periphery of the manifold. The air compressor with warning sound and pressure relief function as described in claim 3, wherein the main frame has a third positioning hole on one side of the first positioning hole, which can be fixed by a screw There is an idler pulley, which can adjust the tension of the aforementioned timing belt, so that the timing belt, the large timing gear and the hour gear can mesh with each other, preventing the timing belt from slipping and jumping.

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