CN206175155U - Bicycle pump - Google Patents

Abstract

The utility model provides a bicycle pump, little barrel setting is in big barrel, and the piston rod setting is in little barrel, be equipped with the valve piston between the exit end of piston rod and the exit end of little barrel, be fixed with the angelica grosseserrata stopper between the exit end of big barrel and the exit end of little barrel, valve seat one end and big barrel and little barrel intercommunication, the other end links to each other and the intercommunication with the pump head, be equipped with a locking device between the entrance point of the entrance point of piston rod, the entrance point of little barrel and big barrel, the entrance point of the rotatable setting air flue on the pump head of the entrance point of hose is linked together through the exit end of choke hoop with the hose, the exit end of air flue runs through first halfbody and extends to in the second halfbody, the entrance point of second halfbody insert between air flue and the first halfbody the clearance and with the internal face spiro union of first halfbody, the exit end outside -in of second halfbody is equipped with first screw thread and second screw thread in proper order, the exit end of air flue extends to between first screw thread and the second screw thread.

Description

A kind of bicycle pump

Technical field

This utility model is related to a kind of bicycle pump.

Background technology

What bicycle was commonly used has American type valve and French valve, but the air nozzle joint of existing inflator can only be with a kind of shape The valve of formula is engaged, and reduces the practicality and convenience of inflator, and Consumer's Experience is poor.

And when inflating to bicycle, existing inflator only has a kind of modes of inflation, it is impossible to meet personal needs.

The content of the invention

To overcome drawbacks described above, this utility model to provide a kind of bicycle pump.

The technical solution of the utility model is：

A kind of bicycle pump, including cylinder, can along the piston rod of cylinder axially reciprocating and for bicycle The flexible pipe of tire connection, the port of export of flexible pipe is provided with for inflating the air nozzle joint that hole is connected with bike tire；

The cylinder includes the large cylinder being coaxially nested and little cylinder, and the little cylinder is slidably disposed on large cylinder Interior, the piston rod is slidably disposed in little cylinder；Set between the port of export of the port of export of the piston rod and little cylinder There is valve piston, and valve piston is fixed on piston rod inwall, it is solid between the port of export of the port of export of the large cylinder and little cylinder Surely there is big piston, big piston is provided with the groove for accommodating inner carrier；The port of export of large cylinder is beyond little cylinder and piston rod, and big cylinder The port of export of body is provided with valve seat, and valve seat one end connects with large cylinder and little cylinder, and the other end is connected with pump head and connects；

Handle is arranged with the outside wall surface of large cylinder, the handle port of export is detachably connected with large cylinder；The entrance point of handle With the entrance point of piston rod beyond little cylinder and large cylinder；Pass through tail-hood between the entrance point of handle and the entrance point of piston rod Fixed, tail-hood seals the entrance point of handle；Set between the entrance point of piston rod, the entrance point of little cylinder and the entrance point of large cylinder There is the first locking device；First locking device include the minor thread set of lock piston bar and little cylinder and lock little cylinder with The major thread set of large cylinder；Minor thread set is set between piston rod and little cylinder, and minor thread set is fastened on piston rod outer wall And little cylinder inboard wall between, and it is spirally connected with little cylinder body outer wall；Major thread set is fastened between little cylinder body outer wall and large cylinder inwall, And be spirally connected with large cylinder inwall；Internal face at the top of major thread set is provided with riveting groove, and the outside wall surface at the top of minor thread set is provided with Tenon, realizes being detachably connected between the major thread set and minor thread set by the cooperation of tenon and riveting groove；Minor thread set The port of export is provided with the centre bore that the top surface and piston rod of the sealing large cylinder port of export are passed through；

The entrance point of flexible pipe is spindle rotationally arranged on pump head, and flexible pipe is connected by pump head, valve seat with large cylinder； The air nozzle joint of the outlet of hose includes the first halfbody and the second halfbody；The interior intracavity of first halfbody is provided with coaxial gas Road, the entrance point for having gap, the air flue between the air flue and the first halfbody is connected by trunnion hoop with the port of export of flexible pipe It is logical；The port of export of the air flue is through the first halfbody and to extend to the second half internal；The entrance point insertion gas of second halfbody Gap between road and the first halfbody is simultaneously spirally connected with the internal face of the first halfbody, and the port of export ecto-entad of the second halfbody sets successively The second screw thread for having the first screw thread being engaged with bicycle American type valve and being engaged with bicycle French valve；The air flue The port of export extend between the first screw thread and the second screw thread, and the 8th sealing is provided between the port of export of air flue and the second halfbody Ring.

Further, pump head is provided with turn hole, and the entrance point of flexible pipe is connected with movable part by connector, the movable part Rotating shaft is spindle rotationally arranged in turn hole, to drive flexible pipe to rotate around the pump housing.

Further, the set hole penetrated for flexible pipe is offered on connector, the entrance point of flexible pipe is located in set hole, and is passed through Glue screw is fixed on connector, set hole one end and soft pipe connection, and the other end is by pump head, valve seat and large cylinder and little Cylinder is connected.

Further, big piston is spirally connected with the outside wall surface of little cylinder, the internal face clamping of big piston and large cylinder.

Further, valve piston is spirally connected with the inwall of piston rod.

Further, the first locker, first lock are provided between the port of export of handle and the outside wall surface of large cylinder Device includes the pipe box being set on large cylinder；The pipe box 10 has the first inclined-plane, and the top on the first inclined-plane has convex body；Institute The port of export for stating handle has the second inclined-plane for stretching out；Second inclined-plane fits with the first inclined-plane, and the second inclined-plane Bottom be provided with the groove being engaged with convex body, the large cylinder is realized detachably connecting with handle by the cooperation of groove and convex body Connect.

The beneficial effects of the utility model are：

1st, inflate to the bicycle for being equipped with American type valve, and inflate to the bicycle for being equipped with French valve, And change convenient, fast；Simple structure, it is practical.

2nd, flexible pipe 24 can meet the demand of user around 360 ° of rotations of cylinder.

3rd, list cylinder charge or double cylinder charges are may be selected, is met individual requirements.

Description of the drawings

Fig. 1 is sectional view of the present utility model.

Structure sectional view when Fig. 2 inflates to the bicycle for being equipped with American type valve.

Fig. 3 is structural representation at A in Fig. 2.

Fig. 4 is structure sectional view when inflating to the bicycle for being equipped with French valve.

Fig. 5 is structural representation at B in Fig. 4.

Fig. 6 is the installation diagram of major thread set and minor thread set.

Fig. 7 is major thread set sectional view.

Fig. 8 is single cylinder charge structural representation.

Fig. 9 is double cylinder charge structural representations.

Figure 10 is schematic diagram when double cylinder charge structures are launched shown in Fig. 9.

In figure：1- pump heads, 2- table covers, 3- tail-hoods, 4- major thread lids, 5- minor thread lids, the big pistons of 6-, 7- valve pistons, 8- Valve seat, 9- movable parts, 10- pipe boxes, 11- large cylinders, the little cylinders of 12-, 13- piston rods, 14- handles, 16- connects nozzle, 18- air pressure Table, 19- trunnion hoops, 20- connectors, 21- glue screws, 22- valves top, 24- flexible pipes, 25- screws, 26- diaphragm seals, 27- first Sealing ring, the sealing rings of 28- second, the sealing rings of 29- the 3rd, the sealing rings of 30- the 4th, the sealing rings of 31- the 5th, 32- jump rings, 33- Six sealing rings, the sealing rings of 34- the 7th, the sealing rings of 35- the 8th, the sealing rings of 37- the 9th.

Specific embodiment

As illustrated, a kind of bicycle pump, including cylinder, along the piston rod 13 of cylinder axially reciprocating and can use In the flexible pipe 24 being connected with bike tire, the port of export of flexible pipe 24 is provided with for inflating the air nozzle that hole is connected with bike tire Joint 16；

The cylinder includes large cylinder 11 and the little cylinder 12 being coaxially nested, and the little cylinder 12 is slidably disposed on greatly In cylinder 11, the piston rod 13 is slidably disposed in little cylinder 12；The port of export of the piston rod 13 and little cylinder 12 The port of export between be provided with valve piston 7, and valve piston 7 is fixed on the inwall of piston rod 13；The port of export of the large cylinder 11 and Big piston 6 is fixed between the port of export of little cylinder 12, big piston 6 is provided with the groove for accommodating inner carrier；The outlet of large cylinder 11 End is beyond little cylinder 12 and piston rod 13, and the port of export of large cylinder 11 is provided with valve seat 8, the one end of valve seat 8 and large cylinder 11 Connect with little cylinder 12, the other end is connected and connects with pump head 1；

Handle 14 is arranged with the outside wall surface of large cylinder 11, the port of export of handle 14 is detachably connected with large cylinder 11；Handle 14 entrance point and the entrance point of piston rod 13 are beyond little cylinder 12 and large cylinder 11；The entrance point and piston rod 13 of handle 14 Entrance point between fixed by tail-hood 3, tail-hood 3 seal handle 14 entrance point；The entrance point of piston rod 13, little cylinder 12 The first locking device is provided between the entrance point of entrance point and large cylinder 11；First locking device includes lock piston bar 13 4 are covered with the minor thread of little cylinder 12 set 5 and the major thread for locking little cylinder 12 and large cylinder 11；Minor thread set 5 is set in piston Between bar 13 and little cylinder 12, and minor thread set 5 is fastened between the outer wall of piston rod 13 and the inwall of little cylinder 12, and with little cylinder 12 outer walls are spirally connected；Major thread set 4 is fastened between the outer wall of little cylinder 12 and the inwall of large cylinder 11, and with the inwall spiral shell of large cylinder 11 Connect；The internal face at the top of major thread set 4 is provided with riveting groove 41, and the outside wall surface at the top of minor thread set 5 is provided with tenon 51, described big Realize being detachably connected by the cooperation of tenon 51 and riveting groove 41 between thread bush 4 and minor thread set 5；The outlet of minor thread set 5 End is provided with the centre bore 53 that the top surface 52 and piston rod 13 of the sealing port of export of large cylinder 11 are passed through；

The entrance point of flexible pipe 24 is spindle rotationally arranged on pump head 1, and flexible pipe 24 passes through pump head 1, valve seat 8 and large cylinder 11 are connected；The air nozzle joint 16 of the port of export of flexible pipe 24 includes the first halfbody 162 and the second halfbody 161；First halfbody 162 Interior intracavity be provided with coaxial air flue 165, have gap between the halfbody 162 of the air flue 165 and first, the air flue 165 enters Mouth end is connected by trunnion hoop 19 with the port of export of flexible pipe 24；The port of export of the air flue 165 is through the first halfbody 162 and prolongs Extend in the second halfbody 161；Gap between the entrance point insertion halfbody 162 of air flue 165 and first of second halfbody 161 is simultaneously It is spirally connected with the internal face 162 of the first halfbody 162, the port of export ecto-entad of the second halfbody 161 is sequentially provided with American with bicycle The first screw thread 164 that valve is engaged and the second screw thread 163 being engaged with bicycle French valve；The air flue 165 goes out Mouth end is extended between the first screw thread 164 and the second screw thread 163, and is provided between the port of export of air flue 165 and the second halfbody 161 8th sealing ring 35.

Pump head 1 is provided with turn hole, and the entrance point of flexible pipe 24 is connected with movable part 9 by connector 20, the movable part 9 Rotating shaft is spindle rotationally arranged in turn hole, to drive flexible pipe 24 to rotate around the pump housing 1.

The set hole penetrated for flexible pipe 24 is offered on connector 20, the entrance point of flexible pipe 24 is located in set hole, and is passed through Glue screw 21 is fixed on connector 20, and set hole one end connects with flexible pipe 24, the other end by pump head 1, valve seat 8 with it is big Cylinder 11 is connected with little cylinder 12.

Big piston 6 is spirally connected with the outside wall surface of little cylinder 12, the internal face clamping of big piston 6 and large cylinder 11；Valve piston 7 with The inwall of piston rod 13 is spirally connected.

The first locker, first locker are provided between the port of export of handle 14 and the outside wall surface of large cylinder 11 Including the pipe box 10 being set on large cylinder 11；The pipe box 10 has the first inclined-plane, and the top on the first inclined-plane has convex body；Institute The port of export for stating handle 14 has the second inclined-plane for stretching out；Second inclined-plane fits with the first inclined-plane, and second oblique The bottom in face is provided with the groove being engaged with convex body, and the large cylinder 11 is realized with handle 14 by the cooperation of groove and convex body can Dismounting connection.

Flexible pipe 24 can meet the demand of user around 360 ° of rotations of cylinder.

Valve piston 7 and piston rod 13 are spirally connected fixation.

Air gauge 30 is provided with pump head 1, and air gauge 30 is sealed by table cover 2；First is provided between valve seat 8 and pump head Sealing ring 27；Greatly the second sealing ring 28 is provided between piston 6 and large cylinder 11；The 3rd is provided between valve piston 7 and little cylinder 12 Sealing ring 29；The 4th sealing ring 30 is provided between connector 20 and movable part 9；The 5th sealing is provided between movable part 9 and pump head 1 Ring 31；The 8th sealing ring 34 is provided between air flue outside wall surface and the second halfbody；It is close that big piston 6 and the support of little cylinder 12 are provided with the 9th Seal ring 37.

When needing to be inflated to the bicycle for being equipped with American type valve, the screw phase of the first screw and bicycle American type valve Engagement, the first halfbody 162 is affixed by screw with the second halfbody 161, and the port of export of air flue 165 extends to the He of the first screw thread 164 Between second screw thread 163, plus Jing air flues 165 of calming the anger enter as in bike tire, then this utility model is connected with bike tire It is logical, you can be inflated.

When needing with inflating to the bicycle for being equipped with French valve, outward winding the first halfbody 162 and the second halfbody 161 it Between screw, and the outer wall along air flue 165 faces out and skids off, and the first halfbody 162 stretches out, the port of export of air flue 165 It is separated with the second screw thread 163, the second screw thread 163 departs from blocking for air flue 165, by the second screw thread 163 and bicycle French The screw of valve is meshed, then this utility model is connected with bike tire, you can inflated.

When needing high-pressure aerated, tail-hood 3 of outwarding winding, then outward winding minor thread set 5, after finally tail-hood 3 is resetted, reciprocating sliding Piston rod, piston rod 13 only coordinates to bicycle inflating with little cylinder 12, single cylinder charge is realized, as shown in figure 9, due to little cylinder The internal diameter of body 12 is less, and the air pressure of inflation is larger.

When needing atm number to inflate, tail-hood 3 of outwarding winding, then outward winding minor thread set 5 and major thread set 4, finally tail-hood 3 is answered Behind position, reciprocating sliding piston rod, piston rod 13 coordinates to bicycle inflating simultaneously with little cylinder 12, large cylinder 11, realizes double gas Cylinder operation, the tolerance of inflation is larger, as shown in Figure 9.

Content described in this specification embodiment is only enumerating for the way of realization to utility model design, and this practicality is new The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model is also wrapped Include those skilled in the art according to this utility model design it is conceivable that equivalent technologies mean.

Claims (6)

1. a kind of bicycle pump, including cylinder, can along the piston rod of cylinder axially reciprocating and for vehicle The flexible pipe of tire connection, the port of export of flexible pipe is provided with for inflating the air nozzle joint that hole is connected with bike tire；

It is characterized in that：

The cylinder includes the large cylinder being coaxially nested and little cylinder, and the little cylinder is slidably disposed in large cylinder, institute State piston rod to be slidably disposed in little cylinder；Little work is provided between the port of export of the port of export of the piston rod and little cylinder Fill in, and valve piston is fixed on piston rod inwall, is fixed between the port of export of the port of export of the large cylinder and little cylinder big Piston, big piston is provided with the groove for accommodating inner carrier；The port of export of large cylinder is beyond little cylinder and piston rod, and large cylinder goes out Mouth end is provided with valve seat, and valve seat one end connects with large cylinder and little cylinder, and the other end is connected with pump head and connects；

Handle is arranged with the outside wall surface of large cylinder, the handle port of export is detachably connected with large cylinder；The entrance point of handle and work The entrance point of stopper rod is beyond little cylinder and large cylinder；It is solid by tail-hood between the entrance point of handle and the entrance point of piston rod Fixed, tail-hood seals the entrance point of handle；It is provided between the entrance point of piston rod, the entrance point of little cylinder and the entrance point of large cylinder First locking device；First locking device include the minor thread set of lock piston bar and little cylinder and lock little cylinder with it is big The major thread set of cylinder；Minor thread set is set between piston rod and little cylinder, and minor thread set be fastened on piston rod outer wall and Between little cylinder inboard wall, and it is spirally connected with little cylinder body outer wall；Major thread set is fastened between little cylinder body outer wall and large cylinder inwall, and It is spirally connected with large cylinder inwall；Internal face at the top of major thread set is provided with riveting groove, and the outside wall surface at the top of minor thread set is provided with convex Tenon, realizes being detachably connected between the major thread set and minor thread set by the cooperation of tenon and riveting groove；What minor thread covered goes out Mouth end is provided with the centre bore that the top surface and piston rod of the sealing large cylinder port of export are passed through；

The entrance point of flexible pipe is spindle rotationally arranged on pump head, and flexible pipe is connected by pump head, valve seat with large cylinder；Flexible pipe The air nozzle joint of the port of export includes the first halfbody and the second halfbody；The interior intracavity of first halfbody is provided with coaxial air flue, institute Stating has gap between air flue and the first halfbody, the entrance point of the air flue is connected by trunnion hoop with the port of export of flexible pipe；Institute The port of export of air flue is stated through the first halfbody and to extend to the second half internal；The entrance point insertion air flue of second halfbody and the Gap between one halfbody is simultaneously spirally connected with the internal face of the first halfbody, the port of export ecto-entad of the second halfbody be sequentially provided with and from Driving American type valve the first screw thread being engaged and the second screw thread being engaged with bicycle French valve；The outlet of the air flue End is extended between the first screw thread and the second screw thread, and the 8th sealing ring is provided between the port of export of air flue and the second halfbody.

2. a kind of bicycle pump as claimed in claim 1, it is characterised in that：Pump head is provided with turn hole, the import of flexible pipe End is connected with movable part by connector, and the rotating shaft of the movable part is spindle rotationally arranged in turn hole, to drive flexible pipe to surround The pump housing is rotated.

3. a kind of bicycle pump as claimed in claim 2, it is characterised in that：Offer what is penetrated for flexible pipe on connector Set hole, the entrance point of flexible pipe is located in set hole, and is fixed on connector by glue screw, and set hole one end connects with flexible pipe Logical, the other end is connected by pump head, valve seat with large cylinder and little cylinder.

4. a kind of bicycle pump as claimed in claim 3, it is characterised in that：The outside wall surface spiral shell of big piston and little cylinder Connect, the internal face clamping of big piston and large cylinder.

5. a kind of bicycle pump as claimed in claim 4, it is characterised in that：Valve piston is spirally connected with the inwall of piston rod.

6. a kind of bicycle pump as claimed in claim 5, it is characterised in that：The port of export of handle and the outer wall of large cylinder The first locker is provided between face, first locker includes the pipe box being set on large cylinder；The pipe box has First inclined-plane, the top on the first inclined-plane has convex body；The port of export of the handle has the second inclined-plane for stretching out；Described Two inclined-planes fit with the first inclined-plane, and the bottom on the second inclined-plane is provided with the groove being engaged with convex body, the large cylinder and handss Handle is realized being detachably connected by the cooperation of groove and convex body.