TWI830634B - Air pump suitable for two types of valves and its valve connector thereof - Google Patents

Abstract

A valve connector of an air pump includes a valve sleeve and a switching device. The valve sleeve has a connecting end and a socket end opposite to the connecting end, and a filling hole passing through the valve sleeve. The switching device is switchable between an American mode and a French mode, and includes a pusher and a handle. One end of the pusher is inserted into the filling hole through the connecting end, and the other end protrudes from the filling hole and is connected to the handle. In the American mode, the handle is connected to the valve sleeve, and a distance from the pusher to the socket end forms a first depth. In the French mode, the handle is detached from the valve sleeve, and the distance from the pusher to the socket end forms a second depth. The first depth is smaller than the second depth. Thus, the valve connector is suitable for both American and French valves.

Description

Suitable for two types of air pumps and air nozzles

The present invention mainly discloses an air nozzle head, especially an air nozzle head that can be used for two types of air nozzles.

Please refer to the "Screw-in Valve Joint" patent case of my country Patent No. I666399. It is a screw-in valve joint that includes a fixed pipe. The fixed pipe has a pipe body and a driving part. The pipe body has a device. There is an air inlet at one end, an air outlet at the other end, and an accommodating hole that runs through the air inlet and the air outlet. A spring element is disposed in the accommodating hole and has a spring element that resists one end of the air inlet. The pressing end and a force-bearing end opposite to the pressing end. An ejector pin has a force-bearing end with a bottom end inserted into the spring element, an ejector pin end opposite to the bottom end, and an ejector pin between the bottom end and the ejector pin end and against the force-bearing end. On the clamping end of the force end, a limiting ring is placed on the ejector end and is used for the clamping end to lean against. It has a first threaded hole for screwing the French air nozzle and a rotating ring pivoted on the air outlet. A second threaded hole for screwing the Schrader valve.

However, the above-mentioned valve joint is designed to use a spring element to provide thrust for the ejector pin to move forward. If the spring force is too small, the check valve of the Schrader valve cannot be opened. If the spring force is too large, it will be difficult for the Presta valve to push the air in. Inside the mouth joint.

In view of the shortcomings of the above-mentioned conventional structures, the inventor of the present invention designed an air pump and its air nozzle head that can be used with two types of air nozzles, which can overcome all the shortcomings of the above-mentioned conventional structures.

The main purpose of the present invention is to provide an air nozzle head that can be used for two types of air nozzles. It includes a air nozzle sleeve and a switching device. The air nozzle sleeve is provided with a connecting end and a sleeve opposite to the connecting end. end, the valve sleeve is provided with a filling hole through it, the filling hole connects the connecting end and the sleeve end, the valve sleeve is provided with a first connecting part, the first connecting part is adjacent to the At the connection end, the switching device can switch between the American state and the French state. The switching device includes a top center and a handle. The top center is provided with a top end and a fixed end opposite to the top end. The top end of the butt is inserted into the filling hole from the connecting end, and the fixed end protrudes from the filling hole and is connected to the handle. The handle is provided with a second connection part. When the switching device is in the American state , the second connecting part is connected to the first connecting part, the distance from the top end to the socket end forms a first depth, and when the switching device is in the French state, the second connecting part is separated from the first connecting part, The distance from the butt tip to the socket end forms a second depth. The first depth is smaller than the second depth. When the second connecting part is connected to the first connecting part, the valve sleeve can be maintained in the American state. , the air nozzle head can be used for Schrader valves and French valves through the above structure.

The first connection part has an external thread structure. One end of the handle is provided with a socket groove. The fixed end is connected to the bottom surface of the socket groove in a plug-in manner. The second connection part has an internal thread structure and is provided on The inner periphery of the socket groove is connected to the inner periphery of the socket. When the switching device is in the American state, the handle is connected to the connecting end.

The inner periphery of the filling hole is provided with a wide portion, a narrow portion and a stopper portion disposed between the wide portion and the narrow portion. The narrow portion is disposed on a side of the wide portion adjacent to the connecting end. Narrow part The width along the radial direction of the filling hole is smaller than the width of the wide part along the radial direction of the filling hole. The outer peripheral edge of the top center is provided with a thick section and a thin section, and the thin section is arranged on the thick section opposite to the handle. On one side, the width of the thin section along the radial direction of the top center is smaller than the width of the thick section along the radial direction of the top center. When the switching device is in the American state, the thick section is separated from the stopper, and the switching device is in the In the French state, the thick section is arranged in the wide part, the thin section is arranged in the narrow part, and the thick section abuts the stopper.

The inner periphery of the filling hole is provided with an American internal thread, a French internal thread and an airtight ring. The American internal thread and the French internal thread are provided between the wide part and the socket end. The American internal thread The socket end is adjacent to the socket end and can be connected to the Schrader valve in a screw-locking manner. The French internal thread is adjacent to the wide part and can be connected to the Schrader valve in a screw-locking manner. The airtight ring is provided between the Schrader internal thread and the French internal thread. between.

The air nozzle head includes a connecting piece, the connecting piece is provided with an axial hole and an air inlet hole is provided radially along the axial hole, the air inlet hole is connected with the axial hole and an internal thread is provided on the inner periphery, The valve sleeve includes a first pipe and a second pipe connected to the first pipe. The first pipe has a large diameter section and a small diameter section connected to the large diameter section. The large diameter section is exposed on The small diameter section passes through the shaft hole and is threadedly connected to the second pipe member. The second pipe member is exposed at an end of the shaft hole opposite to the large diameter section.

An air channel and a first annular groove are provided on the outer periphery of the first pipe member adjacent to the inner periphery of the shaft hole. The first pipe member is provided with an air channel that penetrates the first pipe member and connects the air channel and the filling hole. An air hole, the outer peripheral edge of the second pipe member is provided with a second annular groove adjacent to the inner peripheral edge of the shaft hole, the first annular groove and the second annular groove are respectively located on opposite sides of the air hole, and the air hole is The mouth sleeve also includes two anti-leak rings respectively disposed in the first annular groove and the second annular groove, and the two anti-leak rings are respectively in contact with the inner peripheral surface of the shaft hole.

The main purpose of the present invention is to provide a pump that can be used with two types of air nozzles. The pump includes a cylinder, an output joint, a piston and a piston rod. The pump can be assembled to the air nozzle head. The joint is connected to one end of the cylinder and is provided with an assembly threaded portion. The output joint is provided with an output hole. The piston is provided in the cylinder. One end of the piston rod is connected to the piston and the other end protrudes from the cylinder. Opposite to one end of the output joint, the assembly threaded portion is detachably connected to the internal threaded portion, the output hole communicates with the air inlet and the cylinder, and the piston can compress the air in the cylinder when moving in the cylinder. Entering the shaft hole through the output joint, the air pump can be used with Schrader valves and French valves through the above-mentioned air nozzle head structure.

Other objects, advantages and novelty of the present invention will become more apparent from the following detailed description and the accompanying drawings.

10:Pump

20:Pump

21:Cylinder

22:Output connector

221: Assembly thread part

222:Output hole

23:Piston

24:piston rod

30: Feng Zuitou

40: Valve nozzle sleeve

41:Connection end

42: Socket end

43: Filling hole

431: wide part

432: Narrow part

433: Stopper

434: American internal thread

435:French internal thread

436:Air tight ring

44:First connection part

45:First pipe fitting

451: Large diameter section

452: small trail section

453:Airway

454:First ring groove

455:Stomata

46:Second pipe fitting

461: Second ring groove

47: Stop leakage ring

50:Switching device

51: Top of mind

511:reach the top

512: Fixed terminal

513: thick section

514: Detailed section

52:handle

521: Second connection part

522:Socket slot

60: Connecting parts

61: Shaft hole

62:Air intake hole

63: Internal thread part

90: American valve

91:French valve

D1: first depth

D2: Second depth

Figure 1: is a three-dimensional appearance view of the air nozzle head that can be applied to two types of air nozzles according to the present invention.

Figure 2 is a three-dimensional exploded view of the air nozzle head applicable to two types of air nozzles according to the present invention.

Figure 3 is a cross-sectional structural view of the American style state of the air nozzle head switching device that can be applied to two types of air nozzles according to the present invention.

Figure 4 is an action diagram of the switching device of the air nozzle head that can be used for two types of air nozzles according to the present invention and switches to the French state.

Figure 5 is a cross-sectional structural view of an air pump that can be used with two types of air nozzles according to the present invention.

Regarding the technology, means and effects used in the present invention, a preferred embodiment is described in detail below along with the drawings. This is for illustrative purposes only, and the patent application is not limited by this structure.

Referring to Figures 1 to 5, there are shown a three-dimensional appearance view, a three-dimensional exploded view, a cross-sectional structure diagram, and an action diagram of an air nozzle head that can be used with two types of air nozzles according to the present invention, as well as an illustration of an air pump that can be used with two types of air nozzles according to the present invention. Sectional structure diagram. The pump 10 of the present invention includes a pump 20 and an air nozzle head 30 that can be assembled to the pump 20; wherein: the pump 20 includes a cylinder 21, an output joint 22, a piston 23 and a piston rod 24. The output joint 22 is connected to one end of the cylinder 21 and is provided with an assembly threaded portion 221. An output hole 222 is provided in the output joint 22. The piston 23 is provided in the cylinder 21. One end of the piston rod 24 is connected to The other end of the piston 23 protrudes from the cylinder 21 opposite to the output joint 22 .

The air nozzle head 30 includes an air nozzle sleeve 40 and a switching device 50. The air nozzle sleeve 40 is provided with a connecting end 41 and a sleeve end 42 opposite to the connecting end 41. The air nozzle sleeve 40 40 is provided with a filling hole 43 penetrating through it, and the filling hole 43 connects the connecting end 41 and the sleeve end 42. The valve sleeve 40 is provided with a first connecting part 44, and the first connecting part 44 is adjacent to The connecting end 41 and the switching device 50 can switch between the American state and the French state. The switching device 50 includes a top center 51 and a handle 52. The top center 51 is provided with a top end 511 and is opposite to the top end 511. A fixed end 512 of the top end 511 is inserted into the filling hole 43 from the connecting end 41 and the fixed end 512 protrudes from the filling hole 43 and is connected to the handle 52. The handle 52 is provided with a second connection part 521. When the switching device 50 is in the American state, the second connection part 521 is connected to the first connection part 44, and the distance from the top end 511 to the socket end 42 forms a third connection part 521. At a depth D1, when the switching device 50 is in the French state, the second connecting part 521 is separated from the first connecting part 44, and the distance from the top end 511 to the socket end 42 forms a second Depth D2. The first depth D1 is smaller than the second depth D2. When the second connecting part 521 is connected to the first connecting part 44, the valve sleeve 40 can be maintained in the American state.

The first connecting part 44 has an external thread structure. One end of the handle 52 is provided with a socket groove 522. The fixed end 512 is connected to the bottom surface of the socket groove 522 in a plug-in manner. The second connecting part 521 is in the form of an external thread. The internal thread structure is provided on the inner periphery of the socket groove 522. When the switching device 50 is in the American state, the handle 52 is socketed with the connecting end 41.

The filling hole 43 is provided with a wide part 431 , a narrow part 432 and a stop part 433 between the wide part 431 and the narrow part 432 on the inner periphery of the filling hole 43 . The narrow part 432 is provided on the wide part 431 On one side adjacent to the connecting end 41 , the width of the narrow portion 432 along the radial direction of the filling hole 43 is smaller than the width of the wide portion 431 along the radial direction of the filling hole 43 . The outer periphery of the top core 51 is provided with a thick section 513 and a thin section 514. The thin section 514 is disposed on the side of the thick section 513 opposite to the handle 52. The width of the thin section 514 along the radial direction of the top center 51 is smaller than that of the thick section 513 along the top center. 51 radial width. When the switching device 50 is in the American state, the thick section 513 is separated from the stopper 433. When the switching device 50 is in the French state, the thick section 513 is disposed in the wide portion 431. The thin section 514 is disposed in the narrow portion 432 , and the thick section 513 abuts against the stopper 433 .

The inner periphery of the filling hole 43 is provided with an American internal thread 434, a French internal thread 435 and an airtight ring 436. The American internal thread 434 and the French internal thread 435 are provided on the wide part 431 and the socket end. 42, the Schrader internal thread 434 is adjacent to the socket end 42 and can be connected to a Schrader valve in a screw-locking manner. The French internal thread 435 is adjacent to the wide portion 431 and can be connected to a French-style valve in a screw-locking manner. The air-tight The ring 436 is disposed between the American internal thread 434 and the French internal thread 435 .

The air nozzle head 30 includes a connecting piece 60. The connecting piece 60 is provided with an axis hole 61 and is provided with an air inlet hole 62 radially along the axis hole 61. The air inlet hole 62 is connected with the axis hole 61 and An internal threaded portion 63 is provided on the inner periphery. The valve sleeve 40 includes a first pipe piece 45 and is connected to the first pipe. A second pipe member 46 of the member 45. The first pipe member 45 has a large diameter section 451 and a small diameter section 452 connected to the large diameter section 451. The large diameter section 451 is exposed from the shaft hole 61, and the small diameter section 452 is connected to the large diameter section 451. 452 passes through the shaft hole 61 and is threadedly connected to the second pipe member 46 . The second pipe member 46 is exposed at an end of the shaft hole 61 opposite to the large diameter section 451 .

An air channel 453 and a first annular groove 454 are provided on the outer peripheral edge of the first pipe member 45 adjacent to the inner peripheral edge of the shaft hole 61 . The first pipe member 45 is provided with an air channel that penetrates the first pipe member 45 and communicates with the air channel. 453 and an air hole 455 of the filling hole 43. A second annular groove 461 is provided on the outer circumferential edge of the second pipe member 46 adjacent to the inner circumferential edge of the shaft hole 61. The first annular groove 454 is connected to the second annular groove 453. The annular grooves 461 are respectively located on opposite sides of the air hole 455. The valve sleeve 40 also includes two anti-leak rings 47 respectively disposed in the first annular groove 454 and the second annular groove 461. The leakage rings 47 are respectively in contact with the inner peripheral surface of the shaft hole 61 .

The assembly threaded portion 221 is detachably connected to the internal threaded portion 63. The output hole 222 communicates with the air inlet 62 and the cylinder 21. The piston 23 can compress the air in the cylinder 21 when moving in the cylinder 21. The shaft hole 61 is entered through the output joint 22 .

The air nozzle head 30 can be used for Schrader valves and Schrader valves through the above structure. When the switching device 50 is in the Schrader state, the valve sleeve 40 can be connected to the Schrader valve 90 and the external thread of the Schrader valve 90 can be threaded. Locked to the Schrader internal thread 434, the top center 51 can reliably open the check valve of the Schrader valve 90 by directly pushing. When the switching device 50 is in the French state, the valve sleeve 40 can connect to the French valve. The external thread of the valve 91 and the French valve 91 can be screwed to the French internal thread 435, and the top center 51 will not block the entry of the French valve 91.

From the above, it can be concluded that the present invention has the following advantages:

1. The present invention is applicable to the air nozzle head of two types of air nozzles. The air nozzle head includes an air nozzle sleeve and a switching device. The air nozzle sleeve is provided with a connecting end and a sleeve opposite to the connecting end. The valve sleeve is provided with a filling hole penetrating through it. The filling hole connects the connecting end and the sleeve end. The valve sleeve is provided with a first connecting part, and the first connecting part is adjacent to the connecting end. The connection end, the switching device can switch between the American state and the French state. The switching device includes a top center and a handle. The top center is provided with a top end and a fixed end opposite to the top end. , the top end of the butt is inserted into the filling hole from the connecting end, and the fixed end protrudes from the filling hole and is connected to the handle. The handle is provided with a second connection part. The switching device is in the American state When the switching device is in the French state, the second connecting part is separated from the first connecting part. , the distance from the top end to the socket end forms a second depth, the first depth is smaller than the second depth, and when the second connecting part is connected to the first connecting part, the valve sleeve can be kept in the American style status, the air nozzle head can be used for Schrader valves and French valves through the above structure.

However, the above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. Therefore, any changes in numerical values or replacement of equivalent elements, or equivalence according to the patent scope of the present invention, are mentioned. Changes and modifications should still fall within the scope of the patent of the present invention.

30: Feng Zuitou

40: Valve nozzle sleeve

42: Socket end

43: Filling hole

434: American internal thread

451: Large diameter section

50:Switching device

52:handle

Claims (6)

An air nozzle head that can be used for two types of air nozzles, which includes: an air nozzle sleeve, the air nozzle sleeve is provided with a connecting end and a socket end opposite to the connecting end, the air nozzle sleeve penetrates the ground A filling hole is provided, the filling hole connects the connecting end and the socket end, the valve sleeve is provided with a first connecting part, the first connecting part is adjacent to the connecting end; a switching device, the switching device The device can be switched between the American state and the French state. The switching device includes a top center and a handle. The top center is provided with a top end and a fixed end opposite to the top end. The top end is formed by the top end. The connecting end is inserted into the filling hole and the fixed end protrudes from the filling hole and is connected to the handle. The handle is provided with a second connection part. When the switching device is in the American state, the second connection The second connection part is connected to the first connection part, and the distance from the top end to the socket end forms a first depth. When the switching device is in the French state, the second connection part is separated from the first connection part, and the distance from the top end to the socket end is The distance between the sleeve ends forms a second depth, the first depth is smaller than the second depth, and when the second connecting part is connected to the first connecting part, the valve sleeve can be kept in the American state; a connecting piece, The communication piece is provided with an axial hole and an air inlet hole is provided radially along the axial hole. The air inlet hole is connected with the axial hole and has an internal thread portion on its inner periphery. The valve sleeve includes a first pipe piece and a second pipe member connected to the first pipe member. The first pipe member has a large diameter section and a small diameter section connected to the large diameter section. The large diameter section is exposed at the shaft hole, and the small diameter section passes through The shaft hole is threadedly connected to the second pipe member, and the second pipe member is exposed at an end of the shaft hole opposite to the large diameter section. The air nozzle head that can be used for two types of air nozzles as described in claim 1, wherein the first connecting part has an external thread structure, one end of the handle is provided with a socket groove, and the fixed end is connected in a plug-in manner On the bottom surface of the socket groove, the second connecting portion has an internal thread structure and is arranged on the inner periphery of the socket groove. When the switching device is in the American state, the handle is sleeved on the connecting end. The air nozzle head capable of applying two kinds of air nozzles as described in claim 1, wherein the inner periphery of the filling hole is provided with a wide part, a narrow part and a stopper provided between the wide part and the narrow part. The blocking part is provided on the side of the wide part adjacent to the connecting end. The width of the narrow part along the radial direction of the filling hole is smaller than the width of the wide part along the radial direction of the filling hole. The outer peripheral edge of the top center is provided with A thick section and a thin section, the thin section is arranged on the side of the thick section opposite to the handle, the width of the thin section along the radial direction of the top center is smaller than the width of the thick section along the radial direction of the top center, the When the switching device is in the American state, the thick section is separated from the stopper. When the switching device is in the French state, the thick section is arranged in the wide section, the thin section is arranged in the narrow section, and the thick section abuts against the the stop. The air nozzle head that can be used for two types of air nozzles as described in claim 3, wherein the inner periphery of the filling hole is provided with an American internal thread, a French internal thread and an airtight ring, and the American internal thread and the French The internal thread is provided between the wide part and the socket end. The Schrader internal thread is adjacent to the socket end and can be connected to the Schrader valve in a screw-locking manner. The French internal thread is adjacent to the wide part and can be connected in a screw-locking manner. French valve, the airtight ring is arranged between the American internal thread and the French internal thread. The air nozzle head capable of applying two types of air nozzles as described in claim 1, wherein an air passage and a first annular groove are provided on the outer circumferential edge of the first pipe adjacent to the inner circumferential edge of the shaft hole, and the first The pipe member is provided with an air hole that penetrates the first pipe member and connects the air channel and the filling hole. A second annular groove is provided on the outer peripheral edge of the second pipe member adjacent to the inner peripheral edge of the shaft hole. The first The annular groove and the second annular groove are respectively located on opposite sides of the air hole. The valve sleeve also includes two anti-leak rings respectively provided in the first annular groove and the second annular groove. The leakage rings are respectively in contact with the inner peripheral surface of the shaft hole. An air pump that is combined with the air nozzle head as described in claim 1 or 5 and is suitable for two types of air nozzles, which includes: a pump that includes a cylinder, an output joint, a piston and a piston rod , The output joint is connected to one end of the cylinder and is provided with an assembly threaded portion. An output hole is provided in the output joint. The piston is provided in the cylinder. One end of the piston rod is connected to the piston and the other end protrudes. One end of the cylinder is opposite to the output joint, the assembly threaded portion is detachably connected to the internal threaded portion, the output hole communicates with the air inlet and the cylinder, and the piston can compress the inside of the cylinder when moving in the cylinder The air enters the shaft hole through the output joint.

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