CN209505710U - A kind of tire pressure gun of adjustable outgassing rate - Google Patents

Abstract

The utility model discloses a kind of tire pressure guns of adjustable outgassing rate, including housing and inner core, inner core includes air inlet pipe and snorkel, one end of snorkel is equipped with deflation valve nut, deflation valve nut includes screw rod, hex nut and cap, the inside of screw rod and hex nut is equipped with air passage, No.1 stomata is offered on the side wall of hex nut, screw rod offers several No. two stomatas along its length, the side of cap is equipped with pushing block, the side of pushing block is installed with push rod, push rod is installed with sealing block far from one end of pushing block, sealing block and screw rod are affixed far from one end of hex nut, the utility model is structurally reasonable, push pushing block, sealing block is pushed away screw rod by push rod, rotate deflation valve nut, deflation valve nut produce the distance of snorkel with it is more, the quantity of No. two stomatas communicated with the outside world is more, Realize the adjustment to tire outgassing rate.

Description

A kind of tire pressure gun of adjustable outgassing rate

Technical field

The utility model relates to pneumatic tool field, in particular to a kind of tire pressure gun of adjustable outgassing rate.

Background technique

Tire pressure gun is a kind of particular pressure table, the pressure being exclusively used in the wheels tires such as measurement automobile, truck, bicycle.Tire Rifle is pressed to use pressure sensing technology, measurement accuracy is high, and long service life, easy to operate, and the family that can enable to drive understands in time The tire pressure of oneself love wheel tire.

Tire pressure gun is while measuring tire tire pressure, moreover it is possible to be adjusted to the tire pressure of tire, the tire pressure of tire is enable to protect It holds in suitable range.When common tire pressure gun deflates to tire, deflation valve nut is opened, the air-flow in tire is passed through Gap between deflation valve nut and snorkel flows out to the external world, realizes the decompression to tire tire pressure.

However, the deflation valve nut in common tire pressure gun and the gap between snorkel be it is fixed, can not achieve pair The control of outgassing rate is difficult to be adjusted to tire pressure to be suitably worth.It needs by multi-time inflating, deflate, it could be gradually by tire pressure It is adjusted to suitably be worth, it is more troublesome.In view of the above problems, a solution set forth below.

Utility model content

The purpose of the utility model is to provide a kind of tire pressure gun of adjustable outgassing rate, have can adjust snorkel with The quantity for the venthole that the external world communicates, make in tire pressure gun to the outgassing rate of tire can intense adjustment, allow tire tire pressure more The advantages of being easily adjusted suitable value.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of tire pressure gun of adjustable outgassing rate, including housing and inner core, the outer sheath covers are described on the outside of inner core Inner core includes air inlet pipe and snorkel, and the air inlet pipe is communicated with the side wall of snorkel, the snorkel far from air inlet pipe one Side is installed with coupling and tire pressure connector, is equipped with valve rod inside the snorkel, the length direction of the valve rod and snorkel Length direction is identical, and one end of the valve rod is located on the outside of snorkel, and the snorkel is equipped with vent valve far from one end of valve rod Nut, the deflation valve nut include screw rod, hex nut and cap, one end of the screw rod and hex nut Side is fixedly connected, and the inside of the screw rod and hex nut is equipped with air passage, and the air passage runs through screw rod and six Side shape nut offers several No.1 stomatas on the side wall of the hex nut, and the No.1 stomata is communicated with channel side wall, The screw rod offers several No. two stomatas along its length, and No. two stomatas are communicated with channel side wall, six side Side of the shape nut far from screw rod is fixedly connected with the side of cap, and the cap is equipped with solid far from the side of hex nut Determine slot, pushing block is equipped in the fixing groove, the pushing block is in truncated cone-shaped, and the side of the pushing block is installed with push rod, the push rod The bottom wall of fixing groove is run through in side far from pushing block, and flushes with screw rod far from one end of hex nut, and the push rod is remote One end from pushing block is installed with sealing block, and the sealing block and screw rod are affixed far from one end of hex nut, the sealing Block is installed with second spring far from the side of push rod, and the second spring is fixedly connected far from one end of sealing block with valve rod.

By adopting the above technical scheme, coupling is connected on the valve inside of tire, makes the interior air-flow of tire and snorkel phase It is logical, pushing block is pressed into fixing groove, pushing block pushes push rod, pushes push rod sealing block to the side far from screw rod, tire Interior air-flow is flowed into air passage by snorkel, and by No.1 stomata, is flowed out to the external world, rotated deflation valve nut, make One end of deflation valve nut gradually removes snorkel, as deflation valve nut removes the increase of the distance of snorkel, with extraneous phase The quantity of No. two same stomatas also increases, and the outgassing rate of tire pressure gun increases；Deflation valve nut is tightened, communicate with the outside world No. two The quantity of stomata is reduced, and reduces the outgassing rate of tire pressure gun, realizes the adjustment to tire pressure gun outgassing rate.

Preferably, the air inlet pipe and snorkel are copper pipe, pass through weldering between the air inlet pipe and the snorkel It connects in succession.

By adopting the above technical scheme, copper pipe is survivable than stronger, is also not easy to be oxidized, and can be very good as leading Ventilate the channel of body, the connection type of welding make between air inlet pipe and snorkel will not Lodge, keep the measurement of tire pressure more accurate.

Preferably, the sidewall symmetry of the fixing groove is equipped with two slideways, it is embedded with fixture block in two slideways, The fixture block is located at the part in fixing groove in inclined-plane, and the fixture block is installed with the first spring far from the one end on inclined-plane, and described the One end of one spring is fixedly connected with fixture block, and first spring is fixedly connected far from one end of fixture block with slideway.

By adopting the above technical scheme, the inclined-plane of the side wall of the pushing block of truncated cone-shaped and fixture block cooperates, when pressing pushing block, pushing block Fixture block can be shifted onto slideway, enable pushing block by the position where fixture block, after pushing block passes through completely, fixture block is in the first spring Original position is returned under effect, pushing block is stuck in the bottom end of fixing groove, is made after letting go, and sealing block can also be stuck in separate by push rod The side of screw rod enables air-flow to continue through air passage, and flows to the external world.

Preferably, the sidewall symmetry of the fixture block is set there are two limited block.

By adopting the above technical scheme, the limited block of fixture block side wall can block fixture block, make fixture block will not be in the first spring Under effect, excessive is extend into fixing groove, and pushing block is enable smoothly by fixture block, to complete deflation operations.

Preferably, the sidewall symmetry of the pushing block is set there are two current groove, the current groove is matched with fixture block.

By adopting the above technical scheme, when terminating to deflate, pushing block is rotated, current groove is gone to the position where fixture block, the Two springs can push up outward pushing block, make current groove by fixture block, allow pushing block that can arrive original position, make sealing block and screw rod Fitting, air passage is sealed, decline tire pressure will not.

Preferably, being set on the valve rod there are two annular groove, sealing ring is arranged on two annular grooves.

By adopting the above technical scheme, the side of sealing ring is closely affixed with valve rod, the other side of sealing ring and snorkel Inner wall fitting, the side seal by snorkel far from deflation valve nut keep the measured value of tire pressure gun more accurate.

Preferably, the valve rod is equipped with spanner far from one end of second spring, side wall and the valve rod of the spanner are fixed Connection, one end of the spanner are equipped with bolt, and the bolt runs through the two sides of spanner and housing, and the two sides of the spanner are installed with Gu pin block, the solid pin block and bolt cooperate.

By adopting the above technical scheme, spanner can be rotated around bolt, and after lower ejector lever, valve rod is to close to the one of deflation valve nut Side is mobile, and gas is infused and is injected into tire by coupling, realizes the inflation to tire.

Preferably, being connected with tire pressure table on the tire pressure connector, the tire pressure table is equipped with connection sleeve, the connection Sleeve is set on tire pressure connector, and the top of the tire pressure connector is installed with spacing head, and the connection sleeve is far from tire pressure table One end is installed with detent mouth, and the detent mouth and spacing head cooperate.

By adopting the above technical scheme, pressure gauge can show the tire pressure of tire, and user can explicitly recognize at this time Tire pressure value, and tire pressure is adjusted according to tire pressure value；Tire pressure table is fixed on tire pressure connection to cooperation by detent mouth and spacing head On head, the mode of socket rotates tire pressure table around tire pressure connector, convenient for users to checking tire pressure in all directions Value.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the structural schematic diagram of the inner core of embodiment；

Fig. 3 is the cross-sectional view of embodiment inner core；

Fig. 4 is the enlarged drawing in the area Tu3Zhong A；

Fig. 5 is the enlarged drawing in the area Tu3Zhong B.

Appended drawing reference: 1, housing；11, spanner；111, bolt；112, solid pin block；12, tire pressure table；121, sleeve is connected； 122, detent mouth；2, inner core；3, air inlet pipe；4, snorkel；41, coupling；42, valve rod；421, annular groove；422, sealing ring；43, Deflation valve nut；431, screw rod；432, hex nut；433, air passage；434, No.1 stomata；435, No. two stomatas； 436, sealing ring；5, tire pressure connector；51, spacing head；6, cap；61, fixing groove；62, pushing block；621, current groove；63, push rod； 64, sealing block；65, second spring；66, slideway；67, fixture block；68, the first spring；69, limited block.

Specific embodiment

As described below is only preferred embodiments of the present invention, and protection scope is not limited merely to the embodiment, all The protection scope of the utility model should belong in the technical solution belonged under the utility model thinking.Simultaneously it should be pointed out that for For those skilled in the art, several improvements and modifications without departing from the principle of the utility model, this A little improvements and modifications also should be regarded as the protection scope of the utility model.

As depicted in figs. 1 and 2, a kind of tire pressure gun of adjustable outgassing rate, including housing 1 and inner core 2, housing 1 wrap up In 2 outside of inner core.Inner core 2 includes air inlet pipe 3 and snorkel 4, and air inlet pipe 3 and snorkel 4 are copper pipe, air inlet pipe 3 and ventilation Pass through welded connecting between pipe 4.Air inlet pipe 3 is communicated with the side wall of snorkel 4.

Copper pipe is specially brass, has the characteristics that intensity is high, hardness is big, chemical corrosion resistance is strong, is adapted to production tire Press the inner core 2 of rifle.

As depicted in figs. 1 and 2, snorkel 4 is installed with coupling 41 and tire pressure connector 5 far from the side of air inlet pipe 3.Tire pressure Tire pressure table 12 is connected on connector 5, tire pressure table 12 is equipped with connection sleeve 121, and connection sleeve 121 is set on tire pressure connector 5. The top of tire pressure connector 5 is installed with spacing head 51, connects sleeve 121 far from one end of tire pressure table 12 and is installed with detent mouth 122, blocks Position mouth 122 and spacing head 51 cooperate.

Coupling 41 is connected on the valve inside on tire, makes conducting in the gas and snorkel 4 in tire, and pass through tire Crimp head 5 is connected to tire pressure table 12, so that tire pressure table 12 is detected the tire pressure value of tire, and show, is made user straight The tire pressure for recognizing tire seen.

121 sets of sleeve of connection can rotate around tire pressure connector 5 on tire pressure connector 5, enable the display surface of tire pressure table 12 Arbitrarily rotation all directions, convenient for users to reading.Detent mouth 122 is stuck at spacing head 51, and tire pressure table 12 is fixed on tire It presses on connector.

As shown in Figure 2 and Figure 5, valve rod 42, the length direction of valve rod 42 and the length of snorkel 4 are equipped with inside snorkel 4 Direction is identical, and one end of valve rod 42 is located at 4 outside of snorkel.It is set on valve rod 42 there are two annular groove 421, on two annular grooves 421 It is arranged with sealing ring 422.

Annular groove 421 is fixed on sealing ring 422 on valve rod 42, will not move on valve rod 42.The side of sealing ring 422 with Annular groove 421 fits closely, and the other side of sealing ring 422 is bonded with the inner wall of snorkel 4, by a side seal of snorkel 4, makes tire The tire pressure for testing out tire for pressing rifle energy more accurate.

As shown in Figure 1, valve rod 42 is equipped with spanner 11 far from one end of second spring 65, the side wall and valve rod 42 of spanner 11 are solid Fixed connection, one end of spanner 11 are equipped with bolt 111, and bolt 111 runs through the two sides of spanner 11 and housing 1, and the two sides of spanner 11 are solid Equipped with solid pin block 112, Gu pin block 112 and bolt 111 cooperate.

Spanner 11 can be rotated around bolt 111.Spanner 11 is installed with contact piece, contact piece close to one end of bolt 111 One end bottom far from spanner 11 on the shell, the slewing area of spanner 11 is limited in certain region.

One end by lower ejector lever 11 far from bolt 111, spanner 11 push valve rod 42, make valve rod 42 to close to ventilation valve nut One end it is close.The gas entered from air inlet pipe 3 is pushed, by gas by coupling 41, is pushed into tire.

As shown in Figure 2 and Figure 4, snorkel 4 is equipped with deflation valve nut 43 far from one end of valve rod 42, and deflation valve nut 43 wraps Include screw rod 431, hex nut 432 and cap 6.The fixed company in one end of screw rod 431 and the side of hex nut 432 It connects, the inside of screw rod 431 and hex nut 432 is equipped with air passage 433, and air passage 433 runs through screw rod 431 and six sides Shape nut 432.Several No.1 stomatas 434, No.1 stomata 434 and channel side wall phase are offered on the side wall of hex nut 432 Logical, screw rod 431 offers several No. two stomatas 435 along its length, and No. two stomatas 435 are communicated with channel side wall.

As shown in Figure 2 and Figure 4, side of the hex nut 432 far from screw rod 431 is fixedly connected with the side of cap 6, Cap 6 is equipped with fixing groove 61 far from the side of hex nut 432, and pushing block 62 is equipped in fixing groove 61, and pushing block 62 is in truncated cone-shaped. The side of pushing block 62 is installed with push rod 63, and push rod 63 runs through the bottom wall of fixing groove 61, and and screw rod far from the side of pushing block 62 431 one end far from hex nut 432 flush.Push rod 63 is installed with sealing block 64, sealing block 64 far from one end of pushing block 62 It is affixed with screw rod 431 far from one end of hex nut 432.Sealing block 64 is installed with second spring far from the side of push rod 63 65(is referring to Fig. 3), the one end of second spring 65 far from sealing block 64 is fixedly connected with valve rod 42.

Push pushing block 62 to fixing groove 61 close to the side of hex nut 432, pushing block 62 pushes push rod 63, makes push rod 63 Push sealing block 64 to side far from screw rod 431.Air-flow is entered by the gap between sealing block 64 and screw rod 431 The external world is discharged into air passage 433, and through No.1 stomata 434.

Ventilation valve nut is produced snorkel 4, is located at ventilation No. two stomatas 435 of valve nut side wall by rotation ventilation valve nut It communicates with the outside world, the gas in accelerated release in vitro tire.As ventilation valve nut produces the increasing of distance, No. two communicated with the outside world The quantity of stomata 435 also increases, and allows gas to accelerated release in vitro to the external world, accelerates the rate of pressure reduction of tire.

Ventilation valve nut is rotated into snorkel 4, the length of ventilation valve nut extending aeration pipe 4 shortens, and makes No. two stomatas 435 It is plugged, reduces the release channel of gas, gas can be reduced and be passed to extraneous rate, slow down the rate of pressure reduction of tire, make vehicle The decompression of tire consider carefully it is adjustable, can more fine, convenient control tire pressure size, convenient for the adjustment to tire pressure.

Valve nut of ventilating is equipped with sealing ring 436, and when valve nut of ventilating goes to most tight, ventilation valve nut can be by snorkel 4 side seals far from valve rod 42.

As shown in figure 4, the sidewall symmetry of fixing groove 61 is equipped with two slideways 66, fixture block is embedded in two slideways 66 67, fixture block 67 is located at the part in fixing groove 61 in inclined-plane.Fixture block 67 is installed with the first spring 68 far from the one end on inclined-plane, and first One end of spring 68 is fixedly connected with fixture block 67, and the one end of the first spring 68 far from fixture block 67 is fixedly connected with slideway 66.Fixture block 67 sidewall symmetry is set there are two limited block 69.The sidewall symmetry of pushing block 62 is set there are two current groove 621, current groove 621 It is matched with fixture block 67.

The part that slideway 66 is communicated with fixing groove 61 is equipped with retaining structure, and limited block 69 is stuck on retaining structure, makes fixture block 67 can only some extend into fixing groove 61.

The inclined-plane side of truncated cone-shaped pushing block 62 and the inclined-plane of fixture block 67 are to cooperation.As pushing block 62 is moved along fixing groove 61 Dynamic, fixture block 67 is gradually pushed into slideway 66 by pushing block 62.After entire pushing block 62 all passes through the region at 67 place of fixture block, fixture block 67 return to initial position under the action of the first spring 68, and pushing block 62 is stuck in the lowermost end of fixing groove 61.

Pushing block 62 is rotated, the current groove 621 on pushing block 62 is gone to the position where fixture block 67, fixture block 67 can be from current groove Pass through in 621.Pushing block 62 is mobile to the direction far from 61 bottom of fixing groove under the action of second spring 65, makes pushing block 62 and pushes away Bar 63 can return to initial position, and sealing plate can fit closely again with screw rod 431, air passage 433 is sealed, side stage is made Interior gas will not flow out again, and the tire pressure in tire is made to be able to maintain numerical value after the adjustment.

Working principle: coupling 41 is fixedly connected with the valve inside of tire, and the gas in tire is made to pass through coupling 41 It flows in snorkel 4, and by tire pressure connector 5, is connected with tire pressure table 12.Tire pressure table 12 detects, and indicates the value of tire pressure.

If the tire pressure value measured is lower, spanner 11 can be pressed, spanner 11 is made to push valve rod 42, puts valve rod 42 to close The direction of air valve nut 43 is mobile.The gas entered from air inlet pipe 3 is pushed into tire by valve rod 42, increases the tire in tire Pressure, makes tire pressure rise to normal range.

If the tire pressure value measured is lower, pushing block 62 is pressed, so that push rod 63 is pushed sealing block 64, by sealing block 64 and screw Bar 431 separates.Gas port enters into air passage 433, and flows out to the external world by No.1 stomata 434, reduces tire pressure.If tire Pressure value is excessively high, can rotate deflation valve nut 43, screw rod 431 is produced snorkel 4, make No. two on 431 side wall of screw rod Stomata 435 communicates with the outside world.Screw rod 431 produce the distance of snorkel 4 with it is bigger, No. two stomatas 435 communicated with the outside world Quantity is more, and the flow pass of gas is made to become more, accelerates to reduce tire pressure value.

Conversely, rotation deflation valve nut 43, rotates into snorkel 4 for screw rod 431, it is possible to reduce No. two communicated with the outside world The quantity of stomata 435 reduces the flow pass of gas, keeps the reduction of tire pressure value slack-off.

Claims (8)

1. a kind of tire pressure gun of adjustable outgassing rate, including housing (1) and inner core (2), the housing (1) are wrapped in inner core (2) outside, the inner core (2) includes air inlet pipe (3) and snorkel (4), which is characterized in that the air inlet pipe (3) and snorkel (4) side wall communicates, and the snorkel (4) is installed with coupling (41) and tire pressure connector (5) far from the side of air inlet pipe (3), Valve rod (42) are equipped with inside the snorkel (4), the length direction phase of the length direction and snorkel (4) of the valve rod (42) Together, one end of the valve rod (42) is located on the outside of snorkel (4), and the snorkel (4) is equipped with far from the one end of valve rod (42) and puts Air valve nut (43), the deflation valve nut (43) include screw rod (431), hex nut (432) and cap (6), described One end of screw rod (431) is fixedly connected with the side of hex nut (432), the screw rod (431) and hex nut (432) inside is equipped with air passage (433), and the air passage (433) runs through screw rod (431) and hex nut (432), Several No.1 stomatas (434), the No.1 stomata (434) and air passage are offered on the side wall of the hex nut (432) (433) side wall communicates, and the screw rod (431) offers several No. two stomatas (435), No. two gas along its length Hole (435) is communicated with channel side wall, the side of side and cap (6) of the hex nut (432) far from screw rod (431) It is fixedly connected, the cap (6) is equipped with fixing groove (61) far from the side of hex nut (432), in the fixing groove (61) Equipped with pushing block (62), the pushing block (62) is in truncated cone-shaped, and the side of the pushing block (62) is installed with push rod (63), the push rod (63) bottom wall of fixing groove (61) is run through in the side far from pushing block (62), and with screw rod (431) far from hex nut (432) One end flush, the push rod (63) is installed with sealing block (64) far from the one end of pushing block (62), the sealing block (64) and spiral shell Screw rod (431) is affixed far from the one end of hex nut (432), and the sealing block (64) is installed with far from the side of push rod (63) Second spring (65), the second spring (65) are fixedly connected far from the one end of sealing block (64) with valve rod (42).

2. a kind of tire pressure gun of adjustable outgassing rate according to claim 1, which is characterized in that the air inlet pipe (3) It is copper pipe with snorkel (4), passes through welded connecting between the air inlet pipe (3) and the snorkel (4).

3. a kind of tire pressure gun of adjustable outgassing rate according to claim 1, which is characterized in that the fixing groove (61) Sidewall symmetry be equipped with two slideways (66), is embedded with fixture block (67) in two slideways (66), fixture block (67) position It is in inclined-plane in the part in fixing groove (61), the fixture block (67) is installed with the first spring (68) far from the one end on inclined-plane, described One end of first spring (68) is fixedly connected with fixture block (67), first spring (68) one end and slideway far from fixture block (67) (66) it is fixedly connected.

4. a kind of tire pressure gun of adjustable outgassing rate according to claim 3, which is characterized in that the fixture block (67) Sidewall symmetry is set there are two limited block (69).

5. a kind of tire pressure gun of adjustable outgassing rate according to claim 1, which is characterized in that the pushing block (62) Sidewall symmetry is set there are two current groove (621), and the current groove (621) matches with fixture block (67).

6. a kind of tire pressure gun of adjustable outgassing rate according to claim 1, which is characterized in that on the valve rod (42) If being arranged with sealing ring (422) on two annular grooves (421) there are two annular groove (421).

7. a kind of tire pressure gun of adjustable outgassing rate according to claim 6, which is characterized in that the valve rod (42) is remote One end from second spring (65) is equipped with spanner (11), and the side wall of the spanner (11) is fixedly connected with valve rod (42), described to pull One end of hand (11) is equipped with bolt (111), and the bolt (111) runs through the two sides of spanner (11) and housing (1), the spanner (11) two sides are installed with solid pin block (112), and solid pin block (112) and bolt (111) cooperate.

8. a kind of tire pressure gun of adjustable outgassing rate according to claim 1, which is characterized in that the tire pressure connector (5) it is connected on tire pressure table (12), the tire pressure table (12) is equipped with connection sleeve (121), and the connection sleeve (121) is arranged On tire pressure connector (5), the top of the tire pressure connector (5) is installed with spacing head (51), and the connection sleeve (121) is far from tire One end of pressure table (12) is installed with detent mouth (122), and the detent mouth (122) and spacing head (51) cooperate.