TWM545839U - Air pump and its air storage cylinder, switch valve, and switch valve core - Google Patents

Description

Pump and its air reservoir, switching valve and switching valve core

The present invention relates to an inflatable device, and more particularly to an inflator and its air reservoir, a switching valve and a switching valve core.

According to the conventional pump, especially the man-made pump, which is mainly used for external objects (such as tires and spheres). However, at present, there are two main types of pumpes that are manually operated by human beings. One of them is a direct air supply type, that is, when the user operates, the gas is directly injected into the foreign object, and the other is the gas storage type, that is, the use. When the actuator is actuated, the gas is injected first and stored in the air reservoir, and when the air is to be inflated, the external air is inflated by the air reservoir. However, the above two types of inflators have advantages such as a direct air supply type or a gas storage type, such as a direct air supply type air pump, which is suitable for a low pressure external object (such as a low pressure tire), and is stored. Air-type pumps are suitable for applications requiring high air pressure (such as high-pressure tires). However, if you purchase two different types of inflators, you will have to spend too much, and it is not convenient enough to use and take up space when you store.

In view of this, in order to improve the prior art, the conventional pump has a single use, cannot select the use method, complicated parts, and high manufacturing cost; the present invention provides an inflator, which mainly comprises: a pump body, The air intake cylinder has a cylinder and a switching valve, and the switching valve has a switching valve body, a switching valve core, a spring and a switching rod, and the switching valve body shaft And a rod hole having a valve core hole and a vertical connection with the valve core hole, the switching valve body has at least one body connection hole connecting the valve core hole to the outside, a barrel body hole and an output pipe connection a hole, the body hole is connected to the pump body, the barrel hole is connected to the barrel, the switching valve core has a valve stem, a first o-ring, a second o-ring and a third o-ring, the valve stem is cylindrical, having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, two first slots, two a second slot and two output holes, the input hole extending axially inward from one end of the cylinder The first ring groove is formed by annularly recessing from the circumferential surface of the column, and the second ring groove is formed by annularly recessing from the circumferential surface of the column, and the third ring groove is formed from the column. The circumferential surface is annularly recessed, and the two first slits are recessed from the opposite positions of the circumferential surface of the cylinder, and the two first slits are connected to one end of the cylinder and the first annular groove. The two second slots are recessed from the opposite positions of the circumferential surface of the cylinder, and the two second slots are connected between the second ring groove and the third ring groove, and the two output holes are And extending from the bottom of each of the second slots to the input hole, the first o-ring sleeve is placed in the first ring groove, and the second o-ring is sleeved In the second ring groove, the third o-ring sleeve is placed in the third ring groove, and the switching valve core is placed in the valve core hole of the switching valve body, and the spring is placed in the valve core a hole in the hole and abutting on the switching valve core, the switching rod partially penetrates into the rod hole, has a concave portion and a convex portion corresponding to the position of the switching valve core, so that the concave portion and the convex portion Switching contact Heart switching valve, the switching valve core to the valve bore core displacement. The present invention further provides an air reservoir, which mainly comprises: a cylinder; a switching valve, the switching valve has a switching valve body, a switching valve core, a spring and a switching rod, the switching valve body has an axial direction a valve core hole and a rod hole perpendicularly communicating with the valve core hole, wherein the switching valve body has at least one main body connection hole connecting the valve core hole to the outside, a barrel body hole and an output pipe connection hole, The cylinder hole is connected to the cylinder body, the switching valve core has a valve stem, a first o-ring, a second o-ring and a third o-ring, and the valve stem is cylindrical. The utility model has a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, two first slots, two second slots and two output holes, wherein the input holes are from the column One end of the body extends axially inwardly at a predetermined depth, and the first annular groove is formed by annularly recessing from a circumferential surface of the cylindrical body, and the second annular groove is formed by annularly recessing from a circumferential surface of the cylindrical body. The three-ring groove is formed by annularly recessing from the circumferential surface of the cylinder, and the two first slits are recessed from the opposite positions of the circumferential surface of the cylinder, and the two first slits are formed. And communicating with one end of the column and the first ring groove, the two second slots are recessed from opposite positions of the circumferential surface of the column, and the two second slots are connected to the second ring groove And the two output holes are respectively formed from the bottom of the groove of each of the second slots to communicate with the input hole, and the first o-ring is sleeved on the first In the ring groove, the second o-ring sleeve is placed in the second ring groove, the third o-ring sleeve is placed in the third ring groove, and the switching valve core is placed in the switching valve body. a spring is disposed in the valve core hole and abuts against the switching valve core, the switching rod partially penetrates into the rod hole, and has a concave portion corresponding to the position of the switching valve core And a convex portion, wherein the switching valve core is switched by the concave portion and the convex portion, and the switching valve core is displaced in the valve core hole. The present invention further provides a switching valve core, which mainly comprises: a valve stem, which is cylindrical, has a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, a first slot, a second slot, and two output apertures, the input aperture extending from the one end of the cylinder axially inwardly to a predetermined depth, the first ring groove being annularly recessed from the circumference of the cylinder The second ring groove is formed by annularly recessing from a circumferential surface of the column, and the third ring groove is formed by annularly recessing from a circumferential surface of the column, and the two first slots are from the column. The two circumferential grooves are recessed from each other, and the two first slits are in communication with one end of the cylinder and the first annular groove, and the two second slits are recessed from the opposite positions of the circumferential surface of the cylinder. And the two second slots are connected between the second ring groove and the third ring groove, and the two output holes respectively extend from the bottom of each of the second slots to the input a hole is connected; a first o-ring is sleeved in the first ring groove of the valve stem; a second o-ring is sleeved in the second ring groove of the valve stem; Third o-ring , the sleeve is placed in the third ring groove of the valve stem. The present invention further provides a switching valve core, which mainly comprises: a valve stem, which is cylindrical, has a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, a first slot, a second slot, and two output apertures, the input aperture extending from the one end of the cylinder axially inwardly to a predetermined depth, the first ring groove being annularly recessed from the circumference of the cylinder The second ring groove is formed by annularly recessing from a circumferential surface of the column, and the third ring groove is formed by annularly recessing from a circumferential surface of the column, and the two first slots are from the column. The two circumferential grooves are recessed from each other, and the two first slits are in communication with one end of the cylinder and the first annular groove, and the two second slits are recessed from the opposite positions of the circumferential surface of the cylinder. And the two second slots are connected between the second ring groove and the third ring groove, and the two output holes respectively extend from the bottom of the groove of each of the third ring grooves to the input a first o-ring, the first o-ring is sleeved in the first ring groove of the valve stem; a second o-ring, the second o-ring is placed The valve stem In the second ring groove. The present invention further provides a switching valve, which mainly comprises: a switching valve body having a valve core hole and a rod hole perpendicularly communicating with the valve core hole in the axial direction, the switching valve body having at least a radial direction a main body connecting hole connecting the valve core hole to the outside, a cylindrical body connecting hole and an output pipe connecting hole; a switching valve core having a valve stem, a first o-ring and a second o-ring and a third o-ring, the valve stem is cylindrical, having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, two first slots, two a second slit and a second output hole, wherein the input hole is formed by extending a predetermined depth from the one end of the column axially inwardly, and the first ring groove is annularly recessed from the circumferential surface of the cylinder, and the second ring groove is formed The annular groove is annularly recessed from the circumferential surface of the cylinder, and the third annular groove is annularly recessed from the circumferential surface of the cylinder, and the two first slits are recessed from the opposite positions of the circumferential surface of the cylinder. And the two first slits are connected to one end of the cylinder and the first annular groove, and the two second slits are recessed from the opposite positions of the circumferential surface of the cylinder. The two second slots are connected between the second ring groove and the third ring groove, and the two output holes are respectively extended from the bottom of the second cutting groove to the input hole. The first o-ring sleeve is placed in the first ring groove, the second o-ring sleeve is placed in the second ring groove, and the third o-ring sleeve is placed in the third ring groove The switching valve core is disposed in the valve core hole of the switching valve body; a spring is disposed in the valve core hole of the switching valve body and abuts against the switching valve core; Partially penetrating into the rod hole, having a concave portion and a convex portion corresponding to the position of the switching valve center, so that the switching valve core is switched by the concave portion and the convex portion, so that the switching valve is centered on the valve Displacement within the heart. In order to achieve versatility, simple structure, cost savings and ease of use.

In order to enable your review committee to have a better understanding and recognition of the features and characteristics of this creation, the following examples are presented and described below with reference to the following figures: Please refer to the first to eleventh drawings, which is a preferred embodiment of the present invention. The embodiment of the present invention provides a pump 100, which mainly includes a pump body 10 and an air reservoir 20, wherein: Referring to the first to fourth figures, the pump body 10 has a cylinder block 11 and a piston rod. Group 12, a check valve 13, a gas pipe 14 and a splitter seat 15. The base 11 has a base 111, a barrel 112, a fixed base 113, a fixed top seat 114 and a gas injection bottom plug 115; the base 111 can be laid flat on the ground (or plane), The barrel body 112 is hollow and is connected to the base 111 with its bottom end. The barrel body 112 has a sleeve hole 116 connecting the inside of the barrel body 112 to the outside, and the fixing base. The 113 is fixed to the outer peripheral surface of the barrel 112, and one side of the fixed base 113 has a receiving groove 117. The fixed top seat 114 is fixed to the top end of the barrel 112 and has a coaxial communication to a shaft hole 118 and a second nozzle hole 119 inside the barrel 112, the gas injection bottom plug 115 is disposed inside the barrel body 112; the piston rod group 12 is partially disposed in the tube base 11 for An external air is injected into the interior of the cartridge seat 11. The piston rod assembly 12 has a piston 121, a piston rod 122 and a grip 123. The piston 121 is disposed inside the barrel 112. The piston rod 122 is disposed inside the barrel 112. One end is connected to the piston 121 and passes through the shaft hole 118 of the fixed top seat 114. The grip 123 is connected to the other end of the piston rod 122 and is located at the tube. 112 is externally reciprocally displaced axially relative to the base 11 for gripping by the user to draw external air into the barrel 112 and pressurize the sender; the check valve 13 is attached to the base The socket 116 of the socket is sleeved; the end of the gas pipe 14 is coupled to the check valve 13 so that the gas in the barrel 112 can be transported to the gas pipe 14 only via the check valve 13 in one direction. And can not be reversely transported from the gas pipe 14 into the barrel 112; the split nozzle seat 15 is fixedly connected to the fixed top seat 114 of the sleeve 11, the split nozzle seat 15 has an input nozzle 151 and a An output nozzle group 152 is connected to the input nozzle 151. The output nozzle group 152 has a two-input nozzle 153. The input nozzle 151 is sleeved with the other end of the gas pipe 14, and the two output nozzles 153 are respectively passed through the fixing. Each nozzle hole 119 of the top seat 114. Referring to the first and second to eleventh drawings, the air reservoir 20 has a cylinder 21, a switching valve 22, a barometer 23 and an output tube 24. The cylinder 21 has a gas storage chamber 211 inside, and a cylindrical nozzle 212 connecting the gas storage chamber 211 to the outside. The switching valve 22 has a switching valve body 221, a switching valve core 222, a valve plug 223, a rod plug 224, a spring 225 and a switching rod 226; the switching valve body 221 has a valve core hole 201 in the axial direction. And a rod hole 202 perpendicularly communicating with the valve core hole 201, the switching valve body 221 has at least one body connecting hole 203 connecting the valve core hole 201 to the outside, a barrel connecting hole 204, and a pneumatic pressure gauge. a hole 205 and an output pipe connecting hole 206, wherein the main body connecting hole 203 is connected to at least one of the output nozzles 152 of the inflator main body 10, and the cylindrical connecting hole 204 is connected to the cylindrical body 21 The cylinder nozzle 212 is turned on; the switching valve core 222 has a valve stem 25, a first o-ring 26, a second o-ring 27 and a third o-ring 28 (such as the eighth figure and the The valve stem 25 has a cylindrical shape and has a cylinder 251, an input hole 252, a first ring groove 253, a second ring groove 254, a third ring groove 255, and a first The slit 256, the second slit 257 and the two output holes 258 are formed by extending from the one end of the cylinder 251 axially inward by a predetermined depth. The first annular groove 253 is formed from the cylinder 251. Annular concave The second ring groove 254 is formed by annularly recessing from the circumferential surface of the column 251. The third ring groove 255 is annularly recessed from the circumferential surface of the column 251. The two first slots 256 are formed. The two first slots 256 are connected to one end of the cylinder 251 and the first ring groove 253. The two second slots 257 are self-contained. The second surface of the cylinder 251 is recessed, and the two second slots 257 are connected between the second ring groove 254 and the third ring groove 255. The two output holes 258 are respectively The bottom of each of the second slots 257 extends radially to communicate with the input aperture 252. The first o-ring 26 is sleeved in the first annular groove 253, and the second o-ring 27 is sleeved. Placed in the second ring groove 254, the third o-ring 28 is sleeved in the third ring groove 255 (as shown in the tenth and eleventh figures), and the switching valve core 222 is placed The valve plug 221 is inserted into the valve core hole 201; the valve plug 223 is inserted into one end of the valve core hole 201 to close one end of the valve core hole 201; the rod plug 224 is inserted into the rod One end of the hole 202 such that one end of the rod hole 202 is closed; The spring 225 is abutted between the switching valve core 222 and the valve core hole 201 (ie, the valve plug); the switching rod 226 has an operating portion 291 and an operating portion connected to the operating portion 291. 292, the outer surface of the actuating portion 292 has a concave portion 293 and a convex portion 294. The actuating portion 292 is inserted into the rod hole 202 of the switching valve body 221, and the operating portion 291 is located outside the switching valve body 221. The concave portion 293 and the convex portion 294 are located at positions corresponding to the switching valve core 222. The air pressure gauge 23 is disposed on the switching valve 22 and is connected to the air pressure gauge hole 205 of the switching valve 22. The output pipe 24 is disposed on the switching valve 22 and is connected to the output pipe receiving hole 206 of the switching valve 22 . Therefore, the above description is a description of the components of the pump 100 and the assembly manner thereof provided by the preferred embodiment of the present invention, and then the use characteristics thereof are as follows: First, when the user wants to be the body of the pump 10 When the air reservoir 20 performs air storage, the user first switches the switching lever 226 so that the recess 293 abuts against the switching valve core 222 (as shown in the second figure), so that the valve core hole 201 is at this time. The cylinder hole 204 is kept open, so that when the user controls the piston rod group 12 to operate, the gas in the barrel 112 is pressed by the piston 121 and passes through the gas injection bottom plug 115, and Then, the check valve 13 and the air supply pipe 14 are sent into the input nozzle 151, so that the gas fed into the input nozzle 151 can be input to the valve center hole of the switching valve 22 via the at least one output nozzle 153. 201, in order to allow gas to enter the barrel 21 through the barrel receiving hole 204 (as shown in the second figure), in order to achieve the effect of gas storage, and due to the gas entering the input hole 252, After being sent out from the output hole 258, the second o-ring 27 and the third o-ring 28 are moved to the second second slot 25 7 is pushed in the other direction so that the second o-ring 27 blocks between the output hole 258 and the output tube receiving hole 206, and the third o-ring 28 blocks the rod hole 202, so that the gas cannot be at this time. The outlet tube 24 is sent out or discharged from the rod hole 202 to maintain the smoothness and airtightness of the gas storage, and the air pressure of the gas storage chamber 211 is first passed through the valve core hole 201, and then The air pressure gauge hole 205 is displayed on the air pressure gauge 23. Then, when the user wants to inflate the foreign object from the air reservoir 20, the convex portion 294 of the switching lever 226 is first switched to abut against the switching valve core 222 to push the switching valve core 222 to be displaced and A second slot 257 is electrically connected to the output tube socket 206 (as shown in the third figure). In this way, the gas in the cylinder 21 can pass the second o-ring 27 to the other second slot 257 via the barrel nozzle 212 and the barrel receiving hole 204, so that the gas can be After entering the output hole 258 by the second slot 257, the other output hole 258 and the other second slot 257 are sent out, and then enter the output tube hole 206 to And sent to the outside of the output tube 24, thereby achieving the effect of inflating the tire (not shown) by the air reservoir 20, and the tire air pressure is set by the two first slots 256 to allow the gas to be An o-ring 26 is pushed in the direction of the two first slits 256, and is displayed on the barometer 23 via the valve core hole 201 and the barometer hole 205. Further, when the gas is inflated by the air reservoir 20, if the gas in the air reservoir 20 is insufficient, the gas can be sent from the pump body 10 to the switching valve 22 to be sent out from the output tube 24 ( As shown in the fourth figure, to make the effect of qi. Therefore, the present invention not only directly inflates the foreign body of the pump body, but also inflates the foreign object from the air reservoir to achieve convenience in use. Moreover, due to the switching valve and the switching valve core provided by the present invention, the structure is special and simple, and the operation is not only accurate, but also has low manufacturing cost, which has not been seen in the market at present. Referring to the twelfth to fifteenth drawings, another embodiment of the switching valve core 30 of the present invention, wherein: the switching valve core 30 has a valve stem 31 and a first o-ring 32 And a second o-ring 33 (shown in FIG. 12 and FIG. 15), the valve stem 31 has a cylindrical shape, and has a cylinder 311, an input hole 312, and 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 holes 312 extend axially inward from one end of the column 311. The first annular groove 313 is formed by annularly recessing from the circumferential surface of the cylindrical body 311. The second annular groove 314 is annularly recessed from the circumferential surface of the cylindrical body 311. The third annular groove 315 is formed. The two first slits 316 are recessed from the circumferential surface of the cylinder 311, and the two first slits 316 are combined with the cylinder. One end of the 311 is in communication with the first ring groove 313, and the two second slots 317 are recessed from the opposite positions of the circumferential surface of the column 311, and the two second slots 317 are connected to the second ring. Slot 314 and the third ring groove 3 The two output holes 318 extend from the bottom of the third ring groove 315 to the input hole 312, and the first o-ring 32 is sleeved on the first ring. In the slot 313, the second o-ring 33 is sleeved in the second ring groove 314 (as shown in the twelfth and thirteenth figures). Although the switching valve core 30 provided in this embodiment is different from the configuration of the switching valve core in the foregoing embodiment, it can store the air reservoir 20 (as shown in FIG. 14) and be sent out by the air reservoir 20 The gas has the same effect as the switching control between the venting of the pump body 10 (e.g., Fig. 15). Next, as shown in FIG. 14 and FIG. 15 , the end of the valve stem 31 further has an end portion 310 having a circular arc surface to form a closed or open space between the end plug portion 310 and the foreign object. . The above is only the preferred embodiment provided by the present invention, and is not intended to limit the scope of implementation of the present invention, and all of the related art in the art according to the present invention should be equivalent to the present invention. The scope of coverage.

"First Embodiment"
100‧‧‧Inflator
10‧‧‧Inflator body
11‧‧‧Tucket
111‧‧‧Base
112‧‧‧
116‧‧‧ socket
113‧‧‧Fixed base
117‧‧‧ accommodating slots
114‧‧‧Fixed top seat
118‧‧‧Axis hole
119‧‧‧Contact hole
115‧‧‧ gas injection bottom plug
12‧‧‧ piston rod set
121‧‧‧Piston
122‧‧‧ piston rod
123‧‧‧ grip
13‧‧‧Check valve
14‧‧‧ gas pipeline
15‧‧‧Split nozzle
151‧‧‧ input mouth
152‧‧‧Output mouth group
153‧‧‧ output nozzle
20‧‧‧Air reservoir
21‧‧‧Cylinder
211‧‧‧ gas storage room
212‧‧‧Cylinder mouthpiece
22‧‧‧Switching valve
221‧‧‧Switching valve body
201‧‧‧ valve hole
202‧‧‧ rod holes
203‧‧‧ body hole
204‧‧‧Cylinder hole
205‧‧‧Barometer hole
206‧‧‧Output tube hole
222‧‧‧Switching valve heart
25‧‧‧ valve stem
251‧‧‧Cylinder
252‧‧‧ input hole
253‧‧‧First ring groove
254‧‧‧second ring groove
255‧‧‧ Third ring groove
256‧‧‧first slot
257‧‧‧second slot
258‧‧‧ output hole
26‧‧‧First o-ring
27‧‧‧Second o-ring
28‧‧‧ Third o-ring
223‧‧‧ valve plug
224‧‧‧ rod plug
225‧‧ ‧ spring
226‧‧‧Switch lever
291‧‧‧Operation Department
292‧‧‧Operation Department
293‧‧‧ recess
294‧‧‧ convex
23‧‧‧Barometer
24‧‧‧ Output tube "Second embodiment"
10‧‧‧Inflator body
20‧‧‧Air reservoir
30‧‧‧Switching valve heart
31‧‧‧ valve stem
311‧‧‧Cylinder
312‧‧‧ input hole
313‧‧‧First ring groove
314‧‧‧second ring groove
315‧‧‧ Third ring groove
316‧‧‧ first slot
317‧‧‧Second slot
318‧‧‧ output hole
32‧‧‧First o-ring
33‧‧‧Second o-ring
310‧‧‧End plug

The first figure is a perspective assembled view of a preferred embodiment of the present invention. The second to fourth figures are schematic views of the operation of the embodiment shown in the first figure. The fifth drawing is a partial component combination diagram of the embodiment shown in the first figure. The sixth drawing is an exploded view of a partial member of the embodiment shown in the first figure. The seventh figure is a partial component combination diagram of the embodiment shown in the first figure. The eighth figure is an exploded view of a partial member of the embodiment shown in the first figure. The ninth drawing is an exploded view of a partial member of another view of the embodiment shown in the first figure. The tenth figure is a partial component combination diagram of the embodiment shown in the first figure. The eleventh figure is a partial component combination diagram of another view of the embodiment shown in the first figure. Figure 12 is an exploded view of a partial member of another embodiment of the present invention. The thirteenth figure is a partial component combination diagram of the embodiment shown in Fig. 12. The fourteenth and fifteenth drawings are schematic diagrams of the operation of the embodiment shown in Fig. 12.

100‧‧‧Inflator

10‧‧‧Inflator body

11‧‧‧Tucket

111‧‧‧Base

112‧‧‧

116‧‧‧ socket

113‧‧‧Fixed base

117‧‧‧ accommodating slots

114‧‧‧Fixed top seat

118‧‧‧Axis hole

119‧‧‧ mouth hole

115‧‧‧ gas injection bottom plug

12‧‧‧ piston rod set

121‧‧‧Piston

122‧‧‧ piston rod

123‧‧‧ grip

13‧‧‧Check valve

14‧‧‧ gas pipeline

15‧‧‧Split nozzle

151‧‧‧ input mouth

152‧‧‧Output mouth group

153‧‧‧ output nozzle

20‧‧‧Air reservoir

21‧‧‧Cylinder

211‧‧‧ gas storage room

212‧‧‧Cylinder mouthpiece

22‧‧‧Switching valve

221‧‧‧Switching valve body

201‧‧‧ valve hole

202‧‧‧ rod holes

203‧‧‧ body hole

204‧‧‧Cylinder hole

205‧‧‧Barometer hole

206‧‧‧Output tube hole

222‧‧‧Switching valve heart

26‧‧‧First o-ring

27‧‧‧Second o-ring

28‧‧‧ Third o-ring

225‧‧ ‧ spring

226‧‧‧Switch lever

292‧‧‧Operation Department

293‧‧‧ recess

294‧‧‧ convex

23‧‧‧Barometer

24‧‧‧Output tube

Claims (14)

An air pump, which mainly comprises: a pump body for sucking in external air and pressurizing the output; a gas storage cylinder having a cylinder and a switching valve, the switching valve having a switching valve body and a switching a valve core, a spring and a switching rod, the switching valve body has a valve core hole and a rod hole in the axial direction, and the switching valve body has at least one body connecting hole connecting the valve core hole to the outside, a cylinder a connecting hole and an output pipe connecting hole, the main body connecting hole is connected to the pump main body, the barrel connecting hole is connected to the cylindrical body, the switching valve core has a valve stem, a first o-ring, a second o-ring and a third o-ring, the valve stem is cylindrical, having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, at least a first slot, at least one second slot and at least one output aperture, the input aperture extending from the one end of the cylinder axially inwardly to a predetermined depth, the first slot being from the circumference of the cylinder Depressed, and the first slot is in communication with one end of the cylinder and the first ring groove, the second slot is from the circumference of the cylinder The second slot is connected to the second ring groove, and the output hole is located between the second ring groove and the third ring groove, and is connected to the input hole, the first An o-ring sleeve is disposed in the first annular groove, the second o-ring sleeve is disposed in the second annular groove, and the third o-ring is sleeved in the third annular groove, the switching The valve core is disposed in the valve core hole of the switching valve body, and the spring is disposed in the valve core hole, and the switching rod is configured to displace the switching valve core in the valve core hole. The pump according to claim 1, wherein the pump body has a cylinder seat, a piston rod set, a check valve, a gas pipe and a split nozzle seat; the sleeve has a set of connections a hole, the piston rod assembly is coupled to the sleeve, and can perform a linear piston movement relative to the sleeve to draw external air into the interior of the holder, and then the gas inside the holder is sleeved a hole outlet, the check valve is sleeved with the sleeve hole of the sleeve, and one end of the gas pipeline is connected with the check valve, the split nozzle seat has an input nozzle and an output nozzle group connected with the input nozzle, The input nozzle communicates with the other end of the gas pipe, so that the gas inside the drum seat is unidirectionally outputted to the output nozzle group through the gas pipe and the input nozzle by the check valve; the main body of the gas cylinder is connected It is connected to the output nozzle group of the pump body. The pump according to claim 2, wherein the output nozzle group has two output nozzles, and the main body of the air reservoir is connected to at least one output nozzle; the cartridge holder has a base and a cylinder a body, a fixed base, a fixed top seat and a gas injection bottom plug; the barrel body is hollow and is erected to be connected to the base with a bottom end thereof, the sleeve hole being located at a bottom end of the barrel body The one side of the fixed base is fixed to the outer peripheral surface of the barrel, and one side of the fixed base has a receiving groove, and the receiving groove is coupled with the sleeve The hole is connected and is accommodated by the check valve. The fixed top seat is fixed to the top end of the barrel body, and has two nozzle holes for the two output nozzles to pass through, and the gas injection bottom plug is placed in the tube Inside the body, the split nozzle seat is fixed to the fixed top seat. The pump according to claim 1, wherein the cylinder has a gas storage chamber inside, and the top has a cylinder mouth connecting the gas storage chamber to the outside, the cylinder nozzle and the switching The barrel of the valve is connected to the hole. The air pump according to claim 1, wherein the air reservoir further has a gas pressure gauge and an output tube; and the switching valve body of the switching valve has at least one air pressure gauge connecting the valve core hole to the outside. The air pressure gauge is connected to the air pressure gauge socket, and the output pipeline is connected to the output pipe connection hole of the switching valve. The pump according to claim 1, wherein the switching valve further has a valve plug and a rod plug, and the valve plug is inserted into one end of the valve core hole to make the valve core hole One end is closed; the rod plug is inserted into one end of the rod hole so that one end of the rod hole is closed. An air reservoir, which mainly comprises: a cylinder; a switching valve, the switching valve has a switching valve body, a switching valve core, a spring and a switching rod, the switching valve body has a valve core hole in the axial direction a rod hole perpendicularly communicating with the valve core hole, the switching valve body has at least one body connecting hole connecting the valve core hole to the outside, a barrel connecting hole and an output pipe connecting hole, the barrel connecting hole Connected to the cylinder, the switching valve core has a valve stem, a first o-ring, a second o-ring and a third o-ring, the valve stem is cylindrical and has 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 is from the column One end of the first slot is recessed from the circumferential surface of the cylinder, and the first slot is connected to one end of the cylinder and the first ring groove. The second slot is recessed from the circumferential surface of the cylinder, and the second slot is connected to the second ring groove, and the output hole is located in the second ring groove Between the third ring groove and the input hole, the first o-ring sleeve is placed in the first ring groove, and the second o-ring sleeve is placed in the second ring groove. The third o-ring sleeve is placed in the third ring groove, and the switching valve core is placed in the valve core hole of the switching valve body, and the spring is placed in the valve core hole, and the switching rod is used for the switching rod In order to displace the switching valve core in the valve core hole. The air reservoir according to claim 7, wherein the cylinder has a gas storage chamber inside, and the top has a cylinder mouth connecting the gas storage chamber to the outside, the cylinder nozzle and the switch The barrel of the valve is connected to the hole. The air reservoir according to claim 7 further includes a air pressure gauge and an output pipe, wherein the switching valve body has at least one air pressure gauge hole connecting the valve core hole to the outside, the air pressure. The watch system is connected to the air pressure gauge socket, and the output pipe is connected to the output pipe connection hole of the switching valve. The air reservoir according to claim 7, wherein the switching valve further has a valve plug and a rod plug, and the valve plug is inserted into one end of the valve core hole to make the valve core hole One end is closed; the rod plug is inserted into one end of the rod hole so that one end of the rod hole is closed. A switching valve core mainly comprises: a valve stem, having a cylindrical shape, having a cylinder, an input hole, a first ring groove, a second ring groove, a third ring groove, at least one first The grooving, the at least one second grooving and the at least one output hole are formed by extending a predetermined depth from the one end of the column axially inwardly, the first grooving being recessed from the circumferential surface of the cylinder And the first slot is connected to one end of the cylinder and the first ring groove, the second slot is recessed from a circumferential surface of the cylinder, and the second slot is connected to the second slot a second annular groove extending from the bottom of the groove of the second slit to communicate with the input hole; a first o-ring disposed on the first ring groove of the valve stem a second o-ring is 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, comprising: a valve stem, having a cylindrical shape, having a cylinder, an input hole, a first ring groove, a second ring groove, at least one first slot, at least one a second slit and at least one output hole, wherein the input hole is formed by extending a predetermined depth from the one end of the column axially inwardly, the first slit is recessed from the circumferential surface of the cylinder, and the first cut is The slot is connected to one end of the cylinder and the first ring groove, the second slot is recessed from the circumferential surface of the cylinder, and the second slot is connected to the second ring slot, An output hole is connected to the input hole, the front end of the valve stem has a plug at one end; a first o-ring, the first o-ring sleeve is placed in the first ring groove of the valve stem; An o-ring, the second o-ring sleeve being placed in the second ring groove of the valve stem. A switching valve mainly includes: a switching valve body having a valve core hole in the axial direction, the switching valve body having at least one body connecting hole connecting the valve core hole to the outside, a cylinder a connecting hole and an output pipe connecting hole; a switching valve core having a valve stem, a first o-ring, a second o-ring and a third o-ring, the valve stem is cylindrical, 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 is One end of the column extends axially inwardly to a predetermined depth, the first slot is recessed from a circumferential surface of the column, and the first slot is coupled to one end of the column and the first ring groove Connected, the second slot is recessed from the circumferential surface of the cylinder, and the second slot is connected to the second ring groove, and the output hole is located in the second ring groove and the third ring groove Interposed and connected with the input hole, the first o-ring sleeve is placed in the first ring groove, and the second o-ring sleeve is placed in the second ring groove, the third o a ring sleeve is disposed in the third ring groove, the switching valve core is disposed in the valve core hole of the switching valve body; a spring is disposed in the valve core hole of the switching valve body; It is used to displace the switching valve core in the valve core hole. The switching valve according to claim 13 further comprising a valve plug and a rod plug, the valve plug being inserted into one end of the valve core hole to close one end of the valve core hole; A rod plug is inserted into one end of the rod hole such that one end of the rod hole is closed.