CN108691743B - Inflator and air storage cylinder, switching valve and switching valve core thereof - Google Patents
Inflator and air storage cylinder, switching valve and switching valve core thereof Download PDFInfo
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- CN108691743B CN108691743B CN201710368498.0A CN201710368498A CN108691743B CN 108691743 B CN108691743 B CN 108691743B CN 201710368498 A CN201710368498 A CN 201710368498A CN 108691743 B CN108691743 B CN 108691743B
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- 238000003860 storage Methods 0.000 title claims description 44
- 238000005520 cutting process Methods 0.000 claims abstract description 59
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a switching valve core, which comprises a cylindrical valve core column, a first o-shaped ring and a second o-shaped ring, wherein the cylindrical valve core column is provided with a cylinder body, an input hole, a first ring groove, a second ring groove, a third ring groove, two first cutting grooves, two second cutting grooves and two output holes, the input hole is formed by axially and inwardly extending a preset depth from one end of the cylinder body, the first ring groove is annularly recessed from the peripheral surface of the cylinder body, the second ring groove is annularly recessed from the peripheral surface of the cylinder body, the third ring groove is annularly recessed from the peripheral surface of the cylinder body, the two first cutting grooves are recessed from two opposite positions on the peripheral surface of the cylinder body, the two first cutting grooves are communicated with one end of the cylinder body and the first ring groove, the two second cutting grooves are recessed from two opposite positions on the peripheral surface of the cylinder body, the two second cutting grooves are communicated between the second ring groove and the third ring groove, the two output holes are respectively radially extended from the bottom of each second cutting groove to be communicated with the input hole, the valve plug includes a first annular groove, a second annular groove, and a third annular groove.
Description
Technical Field
The invention relates to the technical field of inflation equipment, in particular to an inflator, an air storage cylinder, a switching valve and a switching valve core of the inflator.
Background
A conventional air pump, particularly a manually operated air pump, is mainly used to inflate foreign objects (such as tires and balls).
The prior inflator operated by manpower is mainly divided into two types, one type is a direct air supply type, i.e. when a user operates, air is directly injected into a foreign object, and the other type is an air storage type, i.e. when the user operates, air is firstly injected into an air storage cylinder and stored in the air storage cylinder, and when the user wants to inflate the air storage cylinder, the foreign object is inflated.
However, both of the above-mentioned air pumps, whether they are of the direct air supply type or the air storage type, have advantages, such as the direct air supply type is suitable for the external object requiring a lower air pressure (e.g. low pressure tire), and the air storage type is suitable for the external object requiring a higher air pressure (e.g. high pressure tire). However, if two different types of inflator are purchased, the cost is too much, the use is not convenient enough, and the space is occupied when the inflator is stored.
Accordingly, the present invention has been developed to solve the problems of the prior art that the conventional air pump has a single purpose, cannot select a use method, has complicated parts, and has high manufacturing cost.
Disclosure of Invention
The invention aims to provide an inflator with multiple purposes, simple part structure, cost saving and convenient use, and an air storage cylinder, a switching valve and a switching valve core thereof.
Based on the above, the present invention mainly achieves the above objects by the following technical means.
An inflator is composed of an inflator body with a cylinder body and a switching valve consisting of a switching valve body with a valve hole and a rod hole, a switching valve body with a cylindrical main body connecting hole, a cylindrical connecting hole and an output connecting hole, a spring and a switching rod, a switching valve body with a valve core hole and a rod hole, a cylindrical connecting hole communicated with said valve core hole, a cylindrical connecting hole communicated with said inflator body, a cylindrical connecting hole communicated with said cylinder body, a switching valve core with a cylindrical valve core column, a first O-shaped ring, a second O-shaped ring and a third O-shaped ring, an input hole, a first annular groove, a second annular groove, a third annular groove, at least one first notch, at least one second notch and at least one output hole, and an air inlet hole extending inward from one end of said cylinder body, the first cutting groove is formed by sinking from the peripheral surface of the cylinder body and is communicated with one end of the cylinder body and the first ring groove, the second cutting groove is formed by sinking from the peripheral surface of the cylinder body and is communicated with the second ring groove, the output hole is positioned between the second ring groove and the third ring groove and is communicated with the input hole, the first o-shaped ring is sleeved in the first ring groove, the second o-shaped ring is sleeved in the second ring groove, the third o-shaped ring is sleeved in the third ring groove, the switching valve core is arranged in the valve core hole of the switching valve body, the spring is arranged in the valve core hole, and the switching rod enables the switching valve core to move in the valve core hole.
The inflator main body is provided with a cylinder seat, a piston rod group, a check valve, a gas pipe and a flow dividing nozzle seat, wherein the cylinder seat is provided with a sleeve connection hole, the piston rod group is connected with the cylinder seat and can perform linear piston motion relative to the cylinder seat so as to suck external gas into the cylinder seat and then lead the gas in the cylinder seat out of the sleeve connection hole, the check valve is sleeved with the sleeve connection hole of the cylinder seat, one end of the gas pipe is connected with the check valve, the flow dividing nozzle seat is provided with an input nozzle and an output nozzle group communicated with the input nozzle, the input nozzle is communicated with the other end of the gas pipe so that the check valve outputs the gas in the cylinder seat to the output nozzle group through the gas pipe and the input nozzle in a one-way mode, and a main body connection hole of the gas storage cylinder is connected with the output nozzle group of the inflator main body.
The cylinder body is hollow and is vertically connected to the base through the bottom end, the sleeve joint hole is located on one side of the cylinder body close to the bottom end and is communicated with the inside of the cylinder body to the outside, the fixed base is fixedly connected to the outer peripheral surface of the cylinder body, a containing groove is formed in one side of the fixed base and is communicated with the sleeve joint hole, the check valve is contained in the containing groove, the fixed top seat is fixedly connected to the top end of the cylinder body and is provided with two nozzle joint holes, the two output nozzles respectively penetrate through the two nozzle joint holes, the gas injection bottom plug is arranged in the cylinder body, and the flow distribution nozzle seat is fixedly connected to the fixed top seat.
Furthermore, the cylinder is internally provided with an air storage chamber, the top of the cylinder is provided with a cylinder connector which is communicated with the air storage chamber to the outside, and the cylinder connector is communicated with the cylinder connecting hole of the switching valve.
The switching valve body of the switching valve is radially provided with at least one air pressure meter connecting hole for communicating the valve core hole with the outside, the air pressure meter is communicated with the air pressure meter connecting hole, and the output pipe is communicated with the output pipe connecting hole of the switching valve.
The switching valve is further provided with a valve core plug and a rod plug, the valve core plug is plugged into one end of the valve core hole to enable one end of the valve core hole to be closed, and the rod plug is plugged into one end of the rod hole to enable one end of the rod hole to be closed.
An air storage cylinder mainly comprises a cylinder body, a switching valve having a switching valve body, a switching valve core, a spring and a switching rod, wherein the switching valve body has a valve core hole and a rod hole vertically communicated with the valve core hole in the axial direction, the switching valve body has at least one main body connecting hole, a cylinder connecting hole and an output pipe connecting hole which are communicated with the valve core hole to the outside in the radial direction, the cylinder connecting hole is communicated with the cylinder body, the switching valve core has a valve core column, a first O-shaped ring, a second O-shaped ring and a third O-shaped ring, the valve core column is cylindrical and has a column body, an input hole, a first annular groove, a second annular groove, a third annular groove, at least one first cutting groove, at least one second cutting groove and at least one output hole, the input hole is formed by extending a predetermined depth inwards from one end of the column body, and the first cutting groove is formed by sinking from the peripheral surface of the column body, the first cutting groove is communicated with one end of the cylinder and the first ring groove, the second cutting groove is formed by sinking from the circumferential surface of the cylinder, the second cutting groove is communicated with the second ring groove, the output hole is positioned between the second ring groove and the third ring groove and is communicated with the input hole, the first o-shaped ring is sleeved in the first ring groove, the second o-shaped ring is sleeved in the second ring groove, the third o-shaped ring is sleeved in the third ring groove, the switching valve core is arranged in the valve core hole of the switching valve body, the spring is arranged in the valve core hole, and the switching rod enables the switching valve core to move in the valve core hole.
Preferably, the cylinder is internally provided with an air storage chamber, the top of the cylinder is provided with a cylinder connector which is communicated with the air storage chamber to the outside, and the cylinder connector is communicated with the cylinder connecting hole of the switching valve.
Preferably, the air reservoir further comprises an air pressure gauge and an output tube, the switching valve body of the switching valve has at least one air pressure gauge connection hole for connecting the valve core hole to the outside in the radial direction, the air pressure gauge is connected with the air pressure gauge connection hole, and the output tube is connected with the output tube connection hole of the switching valve.
Preferably, the switching valve further comprises a valve core plug and a rod plug, the valve core plug is plugged into one end of the valve core hole to seal one end of the valve core hole, and the rod plug is plugged into one end of the rod hole to seal one end of the rod hole.
A switching valve core mainly comprises: a valve stem having a cylindrical shape and having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, at least a first cutting groove, at least a second cutting groove, and at least an output hole, the input hole is formed by extending a predetermined depth from one end of the cylinder axially inwards, the first cutting groove is formed by sinking from the circumferential surface of the cylinder and is communicated with one end of the cylinder and the first annular groove, the second cutting groove is formed by recessing from the peripheral surface of the column body and is communicated with the second ring groove, the output hole extends from the bottom of the second cutting groove to the bottom of the second cutting groove in the radial direction and is communicated with the input hole; the first O-shaped ring is sleeved in the first annular groove of the valve stem; a second o-ring sleeved in the second ring groove of the valve stem; a third o-ring is sleeved in the third ring groove of the valve stem.
A switching valve core mainly comprises a valve core column, a first o-shaped ring, a second o-shaped ring and a second o-shaped ring, wherein the valve core column is cylindrical and provided with a column body, an input hole, a first annular groove, a second annular groove, at least one first cutting groove, at least one second cutting groove and at least one output hole, the input hole is formed by axially and inwardly extending a preset depth from one end of the column body, the first cutting groove is formed by sinking the peripheral surface of the column body and communicated with one end of the column body and the first annular groove, the second cutting groove is formed by sinking the peripheral surface of the column body and communicated with the second annular groove, the output hole is communicated with the input hole, the front end of the valve core column is provided with an end plug part, the first o-shaped ring is sleeved in the first annular groove of the valve core column, and the second o-shaped ring is sleeved in the second annular groove of the valve core column.
A switching valve mainly comprises a switching valve body which is provided with a valve core hole in the axial direction and at least one main body connecting hole, a cylinder connecting hole and an output pipe connecting hole which are communicated with the valve core hole to the outside in the radial direction, a switching valve core which is provided with a valve core column, a first O-shaped ring, a second O-shaped ring and a third O-shaped ring, wherein the valve core column is cylindrical and is provided with a cylinder, an input hole, a first annular groove, a second annular groove, a third annular groove, at least one first cutting groove, at least one second cutting groove and at least one output hole, the input hole is formed by extending a preset depth inwards from one end of the cylinder in the axial direction, the first cutting groove is formed by sinking from the peripheral surface of the cylinder and is communicated with one end of the cylinder and the first annular groove, the second cutting groove is formed by sinking from the peripheral surface of the cylinder, and is communicated with the second annular groove, the output hole is located between the second ring groove and the third ring groove and is communicated with the input hole, the first O-shaped ring is sleeved in the first ring groove, the second O-shaped ring is sleeved in the second ring groove, the third O-shaped ring is sleeved in the third ring groove, the switching valve core is arranged in the valve core hole of the switching valve body, a spring is arranged in the valve core hole of the switching valve body, and a switching rod enables the switching valve core to move in the valve core hole.
Preferably, the switching valve further comprises a valve core plug and a rod plug, the valve core plug is plugged into one end of the valve core hole to seal one end of the valve core hole, and the rod plug is plugged into one end of the rod hole to seal one end of the rod hole.
After the technical means is adopted, when a user wants to store the air storage cylinder by the main body of the inflator, the user firstly switches the switching rod to enable the concave part to be abutted against the switching valve core, so that the valve core hole and the cylinder body connecting hole are kept unblocked, therefore, when the user controls the action of the piston rod group, the air in the cylinder body is extruded by the piston to pass through the air injection bottom plug and then is sent into the input nozzle through the check valve and the air pipe, the air sent into the input nozzle can be input into the valve core hole of the switching valve through at least one output nozzle, so that the air enters the cylinder body through the cylinder body connecting hole to achieve the effect of storing the air, and the second o-shaped ring and the third o-shaped ring are pushed to the other direction of the second cutting groove after the air entering the input hole is sent out from the output hole, the second O-ring is blocked between the output hole and the output pipe connecting hole, the third O-ring is blocked on the rod hole, so that the gas can not be sent out from the output pipe or discharged from the rod hole at the moment, the smoothness and the air tightness during gas storage are maintained, and the air pressure of the gas storage chamber is displayed on the gas pressure meter through the valve core hole and then the gas pressure meter connecting hole. Then, when the user wants to inflate the foreign object from the air storage cylinder, the convex part of the switching rod is first switched to abut against the switching valve core to push the switching valve core to move, and a second slot of the switching rod is conducted with the output pipe connection hole. Therefore, the gas in the cylinder can push the second o-ring to the direction of the other second cutting groove through the cylinder body nozzle and the cylinder body connecting hole, so that the gas enters one output hole through the second cutting groove, then is sent out from the other output hole and the other second cutting groove, and then enters the output pipe connecting hole to be sent out to the outside of the output pipe, thereby achieving the effect of inflating the tire through the air storage cylinder. Moreover, when the air storage cylinder is used for inflating foreign objects, if the air in the air storage cylinder is insufficient, the air can be sent into the switching valve by the inflator main body and then sent out from the output pipe for air inflation. Therefore, the inflator can directly inflate foreign objects through the inflator body and can also inflate the foreign objects through the air storage cylinder, so that the convenience in use is achieved. Moreover, the switching valve and the switching valve core thereof provided by the present invention have special and simple structure, precise operation and low manufacturing cost, which are not seen in the market at present.
Drawings
Fig. 1 is a perspective assembly view of a preferred embodiment of the present invention.
Fig. 2 to 4 are schematic operation diagrams of the embodiment shown in fig. 1.
FIG. 5 is a partial component assembly view of the embodiment shown in FIG. 1.
Fig. 6 is a partial exploded view of the embodiment of fig. 1.
FIG. 7 is a partial component assembly view of the embodiment shown in FIG. 1.
Fig. 8 is a partial exploded view of the embodiment of fig. 1.
Fig. 9 is a partially exploded view of the embodiment of fig. 1 from another perspective.
FIG. 10 is a partial component assembly view of the embodiment shown in FIG. 1.
FIG. 11 is a partial component assembly view from another perspective of the embodiment shown in FIG. 1.
Fig. 12 is a partially exploded view of another embodiment of the present invention.
FIG. 13 is a partial block diagram of the embodiment of FIG. 12.
Fig. 14 and 15 are operation diagrams of the embodiment shown in fig. 12.
[ notation ] to show
"first embodiment
Sleeve opening 116 of barrel 112
Fixed base 113 accommodating groove 117
Fixed top seat 114 shaft hole 118
Piston rod set 12 piston 121
Piston rod 122 handle 123
Check valve 13 gas pipe 14
Split nozzle seat 15 input nozzle 151
Switch valve body 221 valve core hole 201
Valve stem 25 post 251
The inlet 252 has a first groove 253
First cut 256 and second cut 257
Second o-ring 27 third o-ring 28
Concave 293 convex 294
"second embodiment
Valve stem 31 post 311
The inlet hole 312 has a first annular groove 313
Second o-ring 33 terminates in plug portion 310.
Detailed Description
To further understand and appreciate the features and characteristics of the present invention, the following embodiments are illustrated in the drawings:
referring to fig. 1 to 11, a preferred embodiment of the present invention provides a pump 100, which mainly includes a pump body 10 and an air reservoir 20, wherein:
referring to fig. 1 to 4, the pump body 10 includes a cylinder base 11, a piston rod set 12, a check valve 13, a gas pipe 14 and a branch nozzle base 15. The cylinder base 11 has a base 111, a cylinder 112, a fixed base 113, a fixed top base 114 and a gas injection bottom plug 115, the base 111 can be laid on the ground (or plane), the cylinder 112 is hollow and is vertically connected to the base 111 with its bottom end, one side of the cylinder 112 near the bottom end has a socket hole 116 communicating the inside of the cylinder 112 to the outside, the fixed base 113 is fixed on the outer circumference of the cylinder 112, and one side of the fixed base 113 has a containing groove 117, the fixed top base 114 is fixed on the top end of the cylinder 112 and has a shaft hole 118 and two nozzle holes 119 coaxially communicating with the inside of the cylinder 112, the gas injection bottom plug 115 is arranged inside the cylinder 112, the piston rod set 12 is arranged in the cylinder base 11 locally for injecting the external gas into the inside of the cylinder base 11, the piston rod set 12 has a piston 121, a piston rod 122 and a handle 123, the piston 121 is disposed inside the cylinder 112, one end of the piston rod 122 is connected to the piston 121 and passes through the axial hole 118 of the fixed top seat 114, the handle 123 is connected to the other end of the piston rod 122 and is located outside the cylinder 112 for the user to hold and perform axial linear reciprocating displacement relative to the cylinder 11 so as to suck the external air into the cylinder 112 and to send out the external air under pressure, the check valve 13 is sleeved with the sleeve hole 116 of the cylinder 11, one end of the air pipe 14 is connected to the check valve 13 so that the air in the cylinder 112 can be only transmitted to the air pipe 14 via the check valve 13 in one direction and cannot be transmitted from the air pipe 14 to the cylinder 112 in the opposite direction, the flow dividing nozzle seat 15 is fixedly connected to the fixed top seat 114 of the cylinder 11, the flow dividing nozzle seat 15 has an input nozzle 151 and an output nozzle group 152 connected to the input nozzle 151, and the output nozzle group 152 has two output nozzles 153, the input nozzle 151 is sleeved with the other end of the air pipe 14, and two output nozzles 153 respectively penetrate through the nozzle holes 119 of the fixed top seat 114.
Referring to fig. 1 and 2 to 11, the air storage cylinder 20 has a cylinder 21, a switching valve 22, an air pressure gauge 23 and an output pipe 24.
The cylinder 21 has an air storage chamber 211 therein, and a cylinder connector 212 communicating the air storage chamber 211 to the outside is provided at the top thereof.
The switch valve 22 has a switch valve body 221, a switch valve core 222, a valve core plug 223, a rod plug 224, a spring 225 and a switch rod 226, the switch valve body 221 has a valve core hole 201 and a rod hole 202 vertically connected with the valve core hole 201 axially, the switch valve body 221 has at least one main body connection hole 203 connecting the valve core hole 201 to the outside, a cylinder connection hole 204, an air pressure meter connection hole 205 and an output pipe connection hole 206 radially, the main body connection hole 203 is connected with at least one output nozzle 153 in the output nozzle set 152 of the pump main body 10, the cylinder connection hole 204 is connected with the cylinder connection nozzle 212 of the cylinder 21, the switch valve core 222 has a valve core column 25, a first o-ring 26, a second o-ring 27 and a third o-ring 28 (as shown in fig. 8 and 9), the valve core column 25 is cylindrical, has a cylinder 251, an input hole 252, a first ring groove 253, a second ring groove 253, and a switch rod 226, A second ring groove 254, a third ring groove 255, two first cutting grooves 256, two second cutting grooves 257, and two output holes 258, the input hole 252 is formed by extending a predetermined depth from one end of the cylinder 251 axially inward, the first ring groove 253 is formed by annularly recessing from the circumferential surface of the cylinder 251, the second ring groove 254 is formed by annularly recessing from the circumferential surface of the cylinder 251, the third ring groove 255 is formed by annularly recessing from the circumferential surface of the cylinder 251, two first cutting grooves 256 are recessed from two opposite positions on the circumferential surface of the cylinder 251, two first cutting grooves 256 are communicated with one end of the cylinder 251 and the first ring groove 253, two second cutting grooves 257 are recessed from two opposite positions on the circumferential surface of the cylinder 251, two second cutting grooves 257 are communicated between the second ring groove 254 and the third ring groove 255, two output holes 258 are respectively formed by radially extending from the bottom of each second cutting groove 257 to communicate with the input hole 252, the first o-ring 26 is sleeved in the first ring groove 253, the second o-ring 27 is disposed in the second groove 254, the third o-ring 28 is disposed in the third groove 255 (see FIGS. 10 and 11), the switching valve core 222 is disposed in the valve core hole 201 of the switching valve body 221; the valve core plug 223 is inserted into one end of the valve core hole 201, so that one end of the valve core hole 201 is closed; the rod plug 224 is inserted into one end of the rod bore 202, so that one end of the rod hole 202 is closed; the spring 225 is abutted between the switching valve core 222 and the end (i.e. the valve core plug 223) of the valve core hole 201 which is closed; the switch rod 226 has an operation portion 291 and an actuating portion 292 connected to the operation portion 291, the actuating portion 292 has a recess 293 and a protrusion 294 on an outer surface thereof, the actuating portion 292 is inserted into the rod hole 202 of the switching valve body 221, the operation portion 291 is located outside the switching valve body 221, and the recess 293 and the protrusion 294 are located at positions corresponding to the switching valve core 222.
The barometer 23 is disposed on the switch valve 22 and is connected to the barometer jack 205 of the switch valve 22.
The output pipe 24 is disposed on the switch valve 22 and is connected to the output pipe connection hole 206 of the switch valve 22.
Therefore, the above description is a description of the components and assembly of the air pump 100 according to a preferred embodiment of the present invention, and the following description is provided for the usage characteristics:
first, when the user wants to store air in the air cylinder 20 from the air pump main body 10, the user first switches the switching rod 226 to make the concave 293 abut against the switching valve core 222 (as shown in fig. 2), so that the valve core hole 201 and the cylinder body connection hole 204 are kept open, and thus, when the user controls the action of the piston rod set 12, the air in the cylinder body 112 is pressed by the piston 121 to pass through the air injection bottom plug 115, and then is sent into the input nozzle 151 through the check valve 13 and the air pipe 14, so that the air sent into the input nozzle 151 can be input into the valve core hole 201 of the switching valve 22 through at least one output nozzle 153, so that the air enters the cylinder body 21 through the cylinder body connection hole 204 (as shown in fig. 2), so as to achieve the air storage effect, and because the air entering the input hole 252 is sent out from the output hole 258, the second o-ring 27 and the third o-ring 28 are pushed toward the second slot 257 so that the second o-ring 27 blocks between the output hole 258 and the output pipe connection hole 206, the third o-ring 28 blocks the rod hole 202, and the gas cannot be sent out from the output pipe 24 or discharged from the rod hole 202 at this time, so as to maintain the smoothness and the air tightness of the gas storage, and the gas pressure of the gas storage chamber 211 is displayed on the gas pressure gauge 23 through the valve core hole 201 and then through the gas pressure gauge connection hole 205.
Next, when the user wants to inflate the external object from the air cylinder 20, the convex portion 294 of the switch rod 226 is first switched to abut against the switch valve core 222 to push the switch valve core 222 to move, and a second slot 257 is connected to the output pipe 206 (as shown in fig. 3). Thus, the gas in the cylinder 21 can move the second o-ring 27 toward the other second slot 257 through the cylinder nozzle 212 and the cylinder connection hole 204, so that the gas enters one output hole 258 through the one second slot 257, then is sent out through the other output hole 258 and the other second slot 257, and then enters the output pipe connection hole 206 to be sent out of the output pipe 24, thereby achieving the effect of inflating a tire (not shown) by the air storage cylinder 20, and the tire pressure is displayed on the air pressure gauge 23 through the valve core hole 201 and the air pressure gauge connection hole 205 by pushing the first o-ring 26 toward the two first slots 256 by the gas through the two first slots 256.
Moreover, when the air storage tank 20 is used to charge the external objects, if the air in the air storage tank 20 is insufficient, the air can be sent into the switching valve 22 by the pump main body 10 and then sent out from the output pipe 24 (as shown in fig. 4) for air supplement.
Therefore, the inflator can directly inflate foreign objects through the inflator body and can also inflate the foreign objects through the air storage cylinder, so that the convenience in use is achieved. Moreover, the switching valve and the switching valve core thereof provided by the present invention have special and simple structure, precise operation and low manufacturing cost, which are not seen in the market at present.
Referring to fig. 12 to 15, another embodiment of the switching valve core 30 of the present invention is shown, wherein:
the switching valve core 30 has a valve stem 31, a first o-ring 32 and a second o-ring 33 (as shown in fig. 12 and 15), the valve stem 31 is cylindrical and has a cylinder 311, an input hole 312, a first ring groove 313, a second ring groove 314, a third ring groove 315, two first slots 316, two second slots 317 and two output holes 318, the input hole 312 extends from one end of the cylinder 311 to a predetermined depth axially inward, the first ring groove 313 is annularly recessed from the circumferential surface of the cylinder 311, the second ring groove 314 is annularly recessed from the circumferential surface of the cylinder 311, the third ring groove 315 is annularly recessed from the circumferential surface of the cylinder 311, the two first slots 316 are recessed from the circumferential surface of the cylinder 311 at two opposite positions, the two first slots 316 are communicated with one end of the cylinder 311 and the first ring groove 313, the two second slots 317 are recessed from the circumferential surface of the cylinder 311 at two opposite positions, and two second slots 317 are connected between the second ring groove 314 and the third ring grooves 315, two output holes 318 are formed by radially extending from the groove bottom of each third ring groove 315 to be connected with the input hole 312, the first o-ring 32 is sleeved in the first ring groove 313, and the second o-ring 33 is sleeved in the second ring groove 314 (as shown in fig. 12 and 13).
Although the switching valve 30 of the present embodiment is different from the switching valve of the previous embodiment, it can be used to store air in the air reservoir 20 (as shown in fig. 14) and to open and close the air supply from the air reservoir 20 and the air supply from the air pump main body 10 (as shown in fig. 15).
Next, as shown in fig. 14 and 15, one end of the spool 31 further has an end plug portion 310 with an arc surface, so that the end plug portion 310 closes or opens with a foreign object.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and all equivalent variations of those skilled in the art according to the present invention should fall within the scope of the present invention.
Claims (14)
1. An inflator, comprising:
a pump main body for sucking and outputting the external air under pressure;
an air storage cylinder having a cylinder and a switching valve, the switching valve having a switching valve body, a switching valve core, a spring and a switching rod, the switching valve body having a valve core hole and a rod hole in an axial direction, the switching valve body having at least one body connection hole, a cylinder connection hole and an output connection hole in a radial direction, the body connection hole being connected to the inflator body, the cylinder connection hole being connected to the cylinder, the switching valve core having a valve core post, a first o-ring, a second o-ring and a third o-ring, the valve core post being cylindrical and having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, at least one first groove, at least one second groove and at least one output hole, the input hole being formed by extending a predetermined depth inward from one end of the cylinder, the first groove being recessed from a circumferential surface of the cylinder, the first cutting groove is communicated with one end of the cylinder and the first ring groove, the second cutting groove is formed by sinking from the circumferential surface of the cylinder, the second cutting groove is communicated with the second ring groove, the output hole is positioned between the second ring groove and the third ring groove and is communicated with the input hole, the first o-shaped ring is sleeved in the first ring groove, the second o-shaped ring is sleeved in the second ring groove, the third o-shaped ring is sleeved in the third ring groove, the switching valve core is arranged in the valve core hole of the switching valve body, the spring is arranged in the valve core hole, and the switching rod enables the switching valve core to move in the valve core hole;
the switching rod is switched to enable a concave part of the switching rod to abut against the switching valve core, the switching valve core moves in the valve core hole to enable the valve core hole and the cylinder body connecting hole to be kept smooth, and then a gas in the inflator body is controlled to be input into the valve core hole through the main body connecting hole so that the gas can enter the cylinder body through the cylinder body connecting hole, and the effect of storing the gas of the gas storage cylinder is achieved;
switching the switching rod to make a convex part of the switching rod abut against the switching valve core, displacing the switching valve core in the valve core hole to communicate the output hole with the output connection hole, and outputting the gas in the cylinder through the output hole and the output connection hole to achieve the effect of inflating the gas cylinder;
when the gas in the cylinder is insufficient, the gas is sent into the switching valve by the inflator main body and is output through the output hole and the output pipe connecting hole, so that the effect of directly inflating the inflator main body is achieved.
2. The pump according to claim 1, characterized in that: the inflator main body is provided with a cylinder base, a piston rod group, a check valve, a gas pipe and a flow dividing nozzle base, wherein the cylinder base is provided with a sleeving hole, the piston rod group is assembled with the cylinder base and can perform linear piston motion relative to the cylinder base so as to suck external gas into the cylinder base and then lead the gas in the cylinder base out of the sleeving hole, the check valve is sleeved with the sleeving hole of the cylinder base, one end of the gas pipe is connected with the check valve, the flow dividing nozzle base is provided with an input nozzle and an output nozzle group communicated with the input nozzle, the input nozzle is communicated with the other end of the gas pipe, so that the check valve enables the gas in the cylinder base to be output to the output nozzle group through the gas pipe and the input nozzle in a one-way mode, and a main body connecting hole of the gas storage cylinder is communicated with the output nozzle group of the inflator main body.
3. The pump according to claim 2, characterized in that: the cylinder body is hollow and is vertically connected to the base through the bottom end, the sleeving hole is located on one side of the cylinder body adjacent to the bottom end and is communicated with the inside of the cylinder body to the outside, the fixed base is fixedly connected to the outer peripheral surface of the cylinder body, a containing groove is formed in one side of the fixed base and is communicated with the sleeving hole, the check valve is contained in the containing groove, the fixed top seat is fixedly connected to the top end of the cylinder body and is provided with two nozzle holes, the two output nozzles respectively penetrate through the two nozzle holes, the gas injection bottom plug is arranged in the cylinder body, and the flow distribution nozzle seat is fixedly connected to the fixed top seat.
4. The pump according to claim 1, characterized in that: the cylinder body is internally provided with an air storage chamber, the top of the cylinder body is provided with a cylinder body connecting nozzle which is communicated with the air storage chamber to the outside, and the cylinder body connecting nozzle is communicated with the cylinder body connecting hole of the switching valve.
5. The pump according to claim 1, characterized in that: the switching valve body of the switching valve is radially provided with at least one air pressure meter connecting hole for communicating the valve core hole with the outside, the air pressure meter is communicated with the air pressure meter connecting hole, and the output pipe is communicated with the output pipe connecting hole of the switching valve.
6. The pump according to claim 1, characterized in that: the switching valve is also provided with a valve core plug and a rod plug, wherein the valve core plug is plugged into one end of the valve core hole so as to seal one end of the valve core hole, and the rod plug is plugged into one end of the rod hole so as to seal one end of the rod hole.
7. An air cylinder, mainly comprising:
a cylinder body;
a switching valve having a switching valve body, a switching valve core, a spring and a switching rod, the switching valve body having a valve core hole and a rod hole vertically communicating with the valve core hole in an axial direction, the switching valve body having at least one body connection hole, a barrel connection hole and an output connection hole communicating with the valve core hole to the outside in a radial direction, the switching valve core having a valve core post, a first o-ring, a second o-ring and a third o-ring, the valve core post being cylindrical and having a post body, an input hole, a first ring groove, a second ring groove, a third ring groove, at least one first groove, at least one second groove and at least one output hole, the input hole being formed by extending a predetermined depth inward from an axial direction of one end of the post body, the first groove being recessed from a circumferential surface of the post body and communicating with one end of the post body and the first ring groove, the second cutting groove is formed by sinking from the peripheral surface of the cylinder body and is communicated with the second ring groove, the output hole is positioned between the second ring groove and the third ring groove and is communicated with the input hole, the first o-shaped ring is sleeved in the first ring groove, the second o-shaped ring is sleeved in the second ring groove, the third o-shaped ring is sleeved in the third ring groove, the switching valve core is arranged in the valve core hole of the switching valve body, the spring is arranged in the valve core hole, and the switching rod enables the switching valve core to move in the valve core hole;
the switching rod is switched to enable a concave part of the switching rod to abut against the switching valve core, the switching valve core moves in the valve core hole to enable the valve core hole and the cylinder body connecting hole to be kept smooth, and then a gas in the inflator body is controlled to be input into the valve core hole through the main body connecting hole so that the gas can enter the cylinder body through the cylinder body connecting hole, and the effect of storing the gas of the gas storage cylinder is achieved;
and switching the switching rod to make a convex part of the switching rod abut against the switching valve core, the switching valve core displaces in the valve core hole to make the output hole and the output connection hole communicated, and the gas in the cylinder body passes through the output hole and then is output through the output connection hole, so that the effect of inflating the gas storage cylinder is achieved.
8. The air cylinder as set forth in claim 7, wherein: the cylinder body is internally provided with an air storage chamber, the top of the cylinder body is provided with a cylinder body connecting nozzle which is communicated with the air storage chamber to the outside, and the cylinder body connecting nozzle is communicated with the cylinder body connecting hole of the switching valve.
9. The air cylinder as claimed in claim 7, characterized in that: the switching valve body of the switching valve is radially provided with at least one air pressure meter connecting hole for communicating the valve core hole with the outside, the air pressure meter is communicated with the air pressure meter connecting hole, and the output pipe is communicated with the output pipe connecting hole of the switching valve.
10. The air cylinder as set forth in claim 7, wherein: the switching valve is also provided with a valve core plug and a rod plug, wherein the valve core plug is plugged into one end of the valve core hole so as to seal one end of the valve core hole, and the rod plug is plugged into one end of the rod hole so as to seal one end of the rod hole.
11. A switching valve core is characterized by mainly comprising:
the valve core column is cylindrical and is provided with a column body, an input hole, a first annular groove, a second annular groove, a third annular groove, at least one first cutting groove, at least one second cutting groove and at least one output hole, the input hole is formed by axially and inwardly extending a preset depth from one end of the column body, the first cutting groove is formed by sinking from the peripheral surface of the column body and is communicated with one end of the column body and the first annular groove, the second cutting groove is formed by sinking from the peripheral surface of the column body and is communicated with the second annular groove, and the output hole is formed by radially extending from the groove bottom of the second cutting groove to be communicated with the input hole;
the first O-shaped ring is sleeved in the first annular groove of the valve stem;
a second o-ring sleeved in the second ring groove of the valve stem;
a third o-ring is sleeved in the third ring groove of the valve stem.
12. A switching valve core is characterized by mainly comprising:
a valve core column, which is cylindrical and has a column body, an input hole, a first ring groove, a second ring groove, at least one first cutting groove, at least one second cutting groove and at least one output hole, wherein the input hole is formed by extending a preset depth from one end of the column body axially inwards, the first cutting groove is formed by sinking from the peripheral surface of the column body, the first cutting groove is communicated with one end of the column body and the first ring groove, the second cutting groove is formed by sinking from the peripheral surface of the column body, the second cutting groove is communicated with the second ring groove, the output hole is communicated with the input hole, and the front end of the valve core column is provided with a plug part;
the first o-shaped ring is sleeved in the first annular groove of the valve stem;
a second o-ring is sleeved in the second annular groove of the valve stem.
13. A switching valve is characterized by mainly comprising:
the switching valve body is provided with a valve core hole in the axial direction, and at least one main body connecting hole, a cylinder connecting hole and an output pipe connecting hole which are used for communicating the valve core hole with the outside are formed in the radial direction of the switching valve body;
a switching valve core having a cylindrical valve core column, a first o-ring, a second o-ring and a third o-ring, the valve core column having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, at least a first cutting groove, at least a second cutting groove and at least an output hole, the input hole being formed by extending a predetermined depth from one end of the cylinder axially inward, the first cutting groove being formed by recessing the circumferential surface of the cylinder and communicating with one end of the cylinder and the first ring groove, the second cutting groove being formed by recessing the circumferential surface of the cylinder and communicating with the second ring groove, the output hole being formed by communicating with the input hole and between the second ring groove and the third ring groove, the first o-ring being fitted in the first ring groove, the second o-ring being fitted in the second ring groove, the third o-ring being fitted in the third ring groove, the switching valve core is arranged in a valve core hole of the switching valve body;
a spring disposed in the valve core hole of the switching valve body;
a switching rod for displacing the switching valve core in the valve core hole;
the switching rod is switched to enable a concave part of the switching rod to abut against the switching valve core, the switching valve core moves in the valve core hole to enable the valve core hole and the barrel body connecting hole to be kept smooth, and a gas can be input into the valve core hole through the main body connecting hole so as to enter a barrel body through the barrel body connecting hole, so that the effect of storing the gas in the barrel body is achieved;
and switching the switching rod to make a convex part of the switching rod abut against the switching valve core, the switching valve core displaces in the valve core hole to make the output hole communicated with the output pipe connecting hole, and the gas in the cylinder is output through the output hole and the output pipe connecting hole so as to achieve the effect of inflating the cylinder.
14. The switching valve according to claim 13, characterized in that: the valve core plug is plugged into one end of the valve core hole, so that one end of the valve core hole is closed.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106112217A TWI642849B (en) | 2017-04-12 | 2017-04-12 | Multi-purpose pump |
| TW106112217 | 2017-04-12 | ||
| TW106112715 | 2017-04-17 | ||
| TW106112715A TWI646260B (en) | 2017-04-17 | 2017-04-17 | Pump and its air reservoir, switching valve and switching valve core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108691743A CN108691743A (en) | 2018-10-23 |
| CN108691743B true CN108691743B (en) | 2020-05-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368498.0A Active CN108691743B (en) | 2017-04-12 | 2017-05-23 | Inflator and air storage cylinder, switching valve and switching valve core thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691743B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202790697U (en) * | 2011-09-28 | 2013-03-13 | 政相工业有限公司 | Air flow switching mechanism of inflating device |
| TW201428182A (en) * | 2013-01-03 | 2014-07-16 | Beto Engineering & Marketing | Pumping device with gas storage cylinder |
| CN207064178U (en) * | 2017-04-12 | 2018-03-02 | 双馀实业股份有限公司 | Inflator and air storage cylinder, switching valve and switching valve core thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19710869A1 (en) * | 1997-03-15 | 1998-09-17 | Schaeffler Waelzlager Ohg | Piston engine directly-controlled cartridge valve seal |
| US20100104453A1 (en) * | 2008-10-29 | 2010-04-29 | Scott Wu | Pump with automatic return-to-zero pressure gauge |
-
2017
- 2017-05-23 CN CN201710368498.0A patent/CN108691743B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202790697U (en) * | 2011-09-28 | 2013-03-13 | 政相工业有限公司 | Air flow switching mechanism of inflating device |
| TW201428182A (en) * | 2013-01-03 | 2014-07-16 | Beto Engineering & Marketing | Pumping device with gas storage cylinder |
| CN207064178U (en) * | 2017-04-12 | 2018-03-02 | 双馀实业股份有限公司 | Inflator and air storage cylinder, switching valve and switching valve core thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108691743A (en) | 2018-10-23 |
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Effective date of registration: 20190107 Address after: 368 Shipu Songnan East Road, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Kunshan Shiquan Plastic Hardware Products Co., Ltd. Address before: Road China Taiwan Taichung City Beitun District No. 696 four 18 floor 1 Applicant before: Shuang Yu Industrial Limited by Share Ltd |
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