TW201805527A - Simple inflator head enabling to reduce the number of parts, so as to lower the cost and reduce the gap caused by the accumulated tolerance of the parts, thus achieving precise and accurate operation effect - Google Patents

Abstract

A simple inflator head comprises an outer shell and a pressing device, the outer shell comprises an outer sleeve, the outer sleeve is provided with a through slot along a first virtual through-axis, the outer sleeve is provided with an operation end and an engagement end, and the pressing device is arranged in the through slot of the outer sleeve, the pressing device comprises a jacking seat and an airtight ring, the jacking seat is adjacent to the operation end and the airtight ring is adjacent to the engagement end, the jacking seat abuts against the airtight ring in a direct contact manner, the jacking seat is recessed with a receiving hole from one end adjacent to the engagement end to one end adjacent to the operation end, a first receiving groove is radially arranged through the jacking seat, a first clamping member is formed in the first receiving groove. The above-mentioned structure allows the inflator head to reduce the number of parts, so as to lower the cost and reduce the gap caused by the accumulated tolerance of the parts, thereby making the operating effect precise and accurate.

Description

Simple pump head

The invention mainly discloses a head of a pump, especially a simple head of a pump.

Please refer to the patent case of "inflator gas nozzle" No. M318073 in China, which is a type of gas pump nozzle. The air nozzle head has the same assembly hole and connecting tube. The American nozzle is inserted into the positioning nozzle. The assembly hole is provided with a clamp seat at the top of the nozzle for the French nozzle to pass in. The top of the clamp seat is provided with a guide hole for downward constriction. An injection device is slidably fitted between the wrenches, and a return spring is provided between the injection device and the clamp seat, and a movable claw corresponding to the guide hole is provided at the bottom end of the injection device. A spring is connected to the ejector in the injection device. When the wrench moves down the injector, the movable claw can force the air nozzle to deform and clamp the American / French nozzle, so that the ejector pin can be inflated.

However, because the pump nozzle of the above structure is used, when the wrench is pulled up, the injector is first pushed to move, and then the clamp must be forced through the clamp seat to be deformed. The injector uses the movable claw. Part of the ejector pushes the clamp seat, but the movable jaw of the injector is the part of the injector that can be deformed to limit the position of the ejector pin, which causes the movable jaw of the injector to deform while pushing the clamp seat, making the ejector The pushing effect is not good, the deformation of the air nozzle is insufficient, and the air-tight effect is poor. In addition, there are many parts of the air pump nozzle, the cost is high, there are also many gaps due to tolerances, and the operation effect is not precise.

In view of the lack of the above-mentioned conventional structure, the inventor has invented a simple pump head, which can overcome all the disadvantages of the above-mentioned conventional structure.

The main purpose of the simple pump head of the present invention is to provide a pump head including a casing and a pressing device. The casing includes an outer sleeve and a trigger. The outer sleeve extends along a first A virtual slot is provided with a through slot, an operating end of the outer sleeve along the axial direction of the first virtual through axis is provided with an operation end, and a socket end is provided at an end different from the operation end, and the trigger is pivoted. At the operating end, the pressing device is disposed in the through groove of the outer sleeve. The pressing device includes an ejector seat and an airtight ring, the ejector seat is adjacent to the operation end and the airtight ring is adjacent to the Sleeve end, one end of the ejector seat is abutted against the trigger member and the other end is abutted against the airtight ring in a direct contact manner, the airtight ring is radially along the first virtual through axis An outer peripheral edge is provided with a recessed portion that faces and does not contact the inner wall surface of the outer casing through groove, and the ejector seat runs along an axial direction of a second virtual through axis from an end adjacent to the socket end to an end adjacent to the operation end. Recessed with a receptacle, the second virtual through axis The first virtual through-shaft is on the same axis, and the pushing seat is provided with a first receiving groove along the radial direction of the second virtual through-shaft, and the first receiving groove forms a first on a side adjacent to the operation end. A second side is formed on a side adjacent to the socket end, and a first clamping member is formed in the first receiving groove from the first side thereof, and the first clamping member is second to the first receiving groove. Extending to the side, the pump head reduces parts by the above structure to reduce costs, reduce gaps due to accumulated tolerances of parts, and thereby make the operation effect precise and reliable.

The pushing base has an integrated structure.

A first clamping portion is disposed on an end of the first clamping member adjacent to the second side of the first receiving groove and on a side adjacent to the receiving hole. The first clamping portion can be based on the elasticity of the first clamping member. Deformation and swing relative to the jack.

The pushing seat is provided with a second receiving slot along the radial direction of the second virtual through axis. The first receiving slot and the second receiving slot are respectively disposed on two sides of the receiving hole which are different from the receiving hole. Communicating with each other, the second receiving groove forms a first side on a side adjacent to the operation end and a second side forms on a side adjacent to the socket end. The second receiving groove is formed with a first side in the second receiving groove. A second clamping member extending in a direction of the second side of the second receiving groove, the second clamping member being adjacent to one end of the second receiving groove and adjacent to the receiving hole A second clamping portion is provided. The second clamping portion is capable of deforming and swinging with respect to the pushing base by the elasticity of the second clamping member. The first clamping portion and the second clamping portion are opposed to each other.

A third side and a fourth side are formed between the first receiving groove and the first side of the first receiving groove. The third side and the fourth side of the first receiving groove are opposite to each other. The piece does not contact the second side, the third side, and the fourth side of the first receptacle. The second receptacle also has a third side and a fourth side formed between the first side and the second side. The third side and the fourth side of the second receiving groove are opposite to each other, and the second clamping member does not contact the second side, the third side, and the fourth side of the second receiving groove.

The pressing device is provided with a compression spring and an ejection center in the accommodation hole. One end of the compression spring abuts the bottom surface of the accommodation hole, and the ejection center can axially push against the ejection along the second virtual through axis. The seat is movably disposed in the accommodation hole, the first clamping member can use elasticity to move the first clamping portion away from the top center, and the second clamping member can use elasticity to make the second clamping portion The part moves in a direction away from the top center.

The trigger member can be pivoted relative to the outer sleeve between a release position and a clamping position. When the trigger member is in the release position, the first clamping member and the second clamping member are far away from the top core. When the moving member is in the clamping position, the first clamping member and the second clamping member are close to the top center.

The outer peripheral edge of the top center is provided with a latch flange along a radial ring of the second virtual through-shaft. The latch flange has a maximum width along the radial direction of the second virtual through-shaft. When the trigger is in the release position, the distance between the first clamping portion and the second clamping portion forms a release width, and the release width is not less than the latching width. When the trigger is in the clamping position, The distance between the first clamping portion and the second clamping portion forms a clamping width, and the clamping width is smaller than the latching width.

A convex post is protruded along the second virtual through-shaft axially from the bottom surface of the end of the accommodation hole adjacent to the operating end, the compression spring is sleeved on the convex post, and the top core is a hollow structure. The core is sleeved on an end of the compression spring which is different from the protruding post.

A cross section of the recessed portion in a direction parallel to the axial direction of the first virtual through axis is arc-shaped.

The recess surrounds the airtight ring around the first virtual through axis as a center

The through slot is in the shape of a circular hole, the receiving hole is in the shape of a circular hole, and an end of the receiving hole adjacent to the operation end is closed.

A shoulder is provided in the through groove of the outer sleeve, and the inner diameter of the through groove on the side of the shoulder adjacent to the sleeve end along the radial direction of the first virtual through axis is smaller than that of the side of the shoulder adjacent to the operation end. The first virtual through-axis has an inner diameter in the radial direction.

The inner diameter of the shoulder along the radial direction of the first virtual through-axis gradually tapers into a conical inclined surface from a side adjacent to the operation end toward a side adjacent to the sleeve end.

The casing includes a cover, the cover is coupled to the sleeve end, and an end of the airtight ring different from the pushing seat abuts against the cover.

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

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is described in detail below with reference to the drawings. This is for illustration purposes only, and is not limited by such a structure in patent applications.

Referring to FIG. 1 to FIG. 5, it is a three-dimensional appearance view, a three-dimensional exploded view, and a cross-sectional structure view of a simple pump head of the present invention. The pump head 10 of the present invention includes a housing 20 and a pressing device 30; wherein:

The casing 20 includes an outer sleeve 21, a trigger 22 and a cover 23. The outer sleeve 21 is provided with a circular hole-shaped through slot 211 along a first virtual through axis L1. The outer sleeve 21 An operation end 212 is provided at one end along the axial direction of the first virtual through axis L1, and a socket end 213 is provided at an end different from the operation end 212. A shoulder is provided in the through groove 211 of the outer sleeve 21. 214. The inner diameter of the through slot 211 along the radial direction of the first virtual through axis L1 on the side of the shoulder 214 adjacent to the socket end 213 is smaller than the side of the shoulder 214 near the operating end 212 along the first virtual through. The inner diameter in the radial direction of the axis L1. The shoulder 214 is tapered into a conical slope from the side adjacent to the operation end 212 to the side adjacent to the socket end 213 along the radial inner diameter of the first virtual through axis L1. The triggering member 22 can be pivotally disposed on the operation end 212 relative to the outer sleeve 21 between the release position and the clamping position, and the cover member 23 is coupled to the sleeve end 213.

The pressing device 30 is disposed in the through groove 211 of the outer sleeve 21. The pressing device 30 includes a push base 31 and an air-tight ring 32. The push base 31 is adjacent to the operation end 212 and is air-tight. The ring 32 is adjacent to the sleeve end 213, and one end of the pushing seat 31 is abutted against the trigger member 22 and the other end is abutted against the air-tight ring 32 in a direct contact manner. An end different from the pushing base 31 is abutted against the cover member 23. The airtight ring 32 is provided with a concave portion 321 along the radial outer peripheral edge of the first virtual through axis L1. The concave portion 321 faces and does not contact the The outer sleeve 21 penetrates the inner wall surface of the groove 211, the cross section of the recessed portion 321 along a direction parallel to the axial direction of the first virtual through axis L1 is arc-shaped, and the recessed portion 321 surrounds the gas with the first virtual through axis L1 as a center. Closed ring 32 a week.

The push base 31 has an integrally formed structure, and a circular hole is recessed along an axial direction of a second virtual through axis L2 from an end adjacent to the socket end 213 to an end adjacent to the operation end 212. The receiving hole 33 is shaped like a second virtual through-axis L2 and the first virtual through-axis L1 on the same axis. An end of the receiving hole 33 adjacent to the operation end 212 is closed. The jack 31 is in the receiving hole. A bottom surface of an end adjacent to the operation end 212 is axially provided with a protrusion 34 along the second virtual through axis L2.

Please continue to refer to FIG. 6 and FIG. 7, which are cross-sectional structural diagrams of a simple pump head of the present invention. The pushing base 31 is provided with a first receiving slot 35 and a second receiving slot 36 along the radial direction of the second virtual through axis L2. The first receiving slot 35 and the second receiving slot 36 are respectively disposed in the receiving slot 35 and the second receiving slot 36. The two different sides of the accommodation hole 33 are in communication with the accommodation hole 33. The first receiving groove 35 forms a first side 351 on a side adjacent to the operation end 212 and a second side 352 of a side adjacent to the socket end 213. The first receiving groove 35 is on a first side thereof. A third side 353 and a fourth side 354 are formed between 351 and the second side 352. The third side 353 and the fourth side 354 of the first receiving groove 35 are opposite to each other. The second receiving groove 36 forms a first side 361 on a side adjacent to the operation end 212 and a second side 362 on a side adjacent to the socket end 213. The second receiving groove 36 is on a first side thereof. A third side 363 and a fourth side 364 are also formed between 361 and the second side 362, and the third side 363 and the fourth side 364 of the second receiving groove 36 are opposite to each other.

A first clamping member 355 is formed in the first receiving groove 35 from a first side 351 thereof. The first clamping member 355 extends in a direction of the second side 352 of the first receiving groove 35. The member 355 does not contact the second side 352, the third side 353, and the fourth side 354 of the first receiving groove 35, so that the second side 352, the third side 353, and the fourth side 354 of the first receiving groove 35 reach the A region between the first clamping members 355 is hollow. The first clamping member 355 is adjacent to one end of the second side 352 of the first receiving groove 35 and one side of the receiving hole 33 is provided with a first clamping. The first clamping portion 356 is capable of deforming and swinging relative to the pushing base 31 with the elasticity of the first clamping member 355.

A second clamping member 365 is formed in the second receiving groove 36 from a first side 361 of the second receiving groove 36. The second clamping member 365 extends in a direction of the second side 362 of the second receiving groove 36. The piece 365 does not contact the second side 362, the third side 363, and the fourth side 364 of the second receiving groove 36, so that the second side 362, the third side 363, and the fourth side 364 of the second receiving groove 36 reach the The area between the second clamping members 365 is hollow. The second clamping member 365 is provided with a second clamp adjacent to one end of the second side 362 of the second receiving groove 36 and the side adjacent to the receiving hole 33. The second clamping portion 366 is capable of deforming and swinging relative to the pushing base 31 with the elasticity of the second clamping member 365, and the first clamping portion 356 and the second clamping portion 366 are opposed to each other.

The pressing device 30 is provided with a compression spring 37 and a top core 38 in the accommodation hole 33. One end of the compression spring 37 abuts the bottom surface of the accommodation hole 33 and is sleeved on the convex post 34. 38 has a hollow structure and can be moved along the second virtual through axis L2 axially relative to the ejection seat 31 in the receiving hole 33 and sleeved on an end of the compression spring 37 different from the protruding column 34, the The first clamping member 355 can use elasticity to move the first clamping portion 356 away from the top center 38, and the second clamping member 365 can use elasticity to move the second clamping portion 366 away from the top center. 38 direction. A locking flange 381 is protruded along a radial ring of the second virtual through axis L2 on the outer peripheral edge of the top center 38, and the maximum width of the locking flange 381 along the radial direction of the second virtual through axis L2 forms a Snap width WL.

Please continue to refer to FIG. 8 and FIG. 9, which are diagrams of the use state of the simple type air pump head connected to the French air nozzle and the triggering member lifted up. When the triggering member 22 is in the release position, the distance between the first clamping member 355 and the second clamping member 365 is far from the top center 38, and the distance between the first clamping portion 356 and the second clamping portion 366. A release width WR is formed, and the release width WR is not less than the latching width WL. When the trigger member 22 is in the clamping position, the first clamping member 355 and the second clamping member 365 abut against the top center. 38. The distance between the first clamping portion 356 and the second clamping portion 366 forms a clamping width WH, and the clamping width WH is smaller than the latching width WL.

When the pump head 10 is connected to a French gas nozzle, the French gas nozzle is inserted into the pressing device 30 to push the ejector core 38 and compress the compression spring 37, and then the trigger 22 can be pulled to the clamping position. Position, at this time, the trigger 22 pushes the pushing seat 31 to move and squeezes the air-tight ring 32 to deform, so that the air-tight ring 32 fits tightly on the outer surface of the French air nozzle to form an air tightness, and avoids The French gas nozzle is detached from the pump head 10 during the pumping process.

Because the airtight ring 32 adopts a design in which the recess 321 is provided on the outer periphery, when the airtight ring 32 is pressed by the ejector seat 31, the airtight ring 32 must move in a direction close to the first virtual through axis L1. Deformation increases the amount of deformation of the airtight ring 32 along the radial direction of the first virtual through axis L1, improves the tightness of the airtight ring 32 to the air nozzle after deformation, avoids air leakage, and enables the airtight ring 32 to withstand The pushing seat 31 has a long-distance pressing stroke. In addition, the recessed portion 321 can serve as a space for deformation when the airtight ring 32 is pressed by the pusher seat 31, so that the pusher seat 31 can easily push the airtight ring 32 to deform, and in the pusher seat After the 31 is pressed to deform the airtight ring 32, the airtight ring 32 can also provide an average and stable rebound force of the ejection seat 31 for the ejection seat 31 to return to its original position.

Please continue to refer to FIG. 10, which is a diagram showing a state of use of the simple type pump head connected to the American-style gas nozzle and the trigger member being pulled up. When the pump head 10 is connected to an American-style gas nozzle, the trigger 22 is pulled to a clamping position. At this time, the trigger 22 pushes the push base 31 to move and squeeze the air-tight ring 32. The deformation causes the air-tight ring 32 to tightly fit on the outer surface of the American-style gas nozzle to form an air-tightness, and at the same time, the first clamping member 355 and the second clamping member 365 are pushed by the shoulder 214 toward the vicinity of the The top core 38 moves in the direction, so that the first clamping portion 356 and the second clamping portion 366 abut the side of the latch flange 381 which is different from the airtight ring 32, so as to prevent the top core 38 from being affected. Push back and push back to open the check valve of American valve.

The design of the pump head 10 is an integrally formed structure by the ejector seat 31. When the trigger member 22 pulls up and pushes the ejector seat 31, the ejector seat 31 can directly squeeze the airtight The deformation of the ring 32 makes the deformation effect of the airtight ring 32 good and achieves a good airtight effect. At the same time, the parts of the pump head 10 are reduced. In addition to reducing the cost, the gap caused by the tolerance of the parts can also be reduced. The action of the pump head 10 is precise and reliable.

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

1. A simple pump head of the present invention, wherein the pump head includes a casing and a pressing device, the casing includes an outer sleeve and a trigger, the outer sleeve is along a first virtual through axis A through slot is provided, an end of the outer sleeve along the axial direction of the first virtual through axis is provided with an operation end, and an end different from the operation end is provided with a socket end, and the trigger is pivoted on the operation. End, the pressing device is disposed in the slot of the outer sleeve, the pressing device includes a push base and an air-tight ring, the push base is adjacent to the operation end and the air-tight ring is adjacent to the sleeve end , One end of the jack is abutted against the trigger member and the other end is abutted against the air-tight ring in a direct contact manner, and the air-tight ring is arranged along the radial outer periphery of the first virtual through axis There is a recess, the recess is facing and does not contact the inner wall surface of the outer casing through groove, and the jack is recessed along an axial direction of a second virtual through shaft from an end adjacent to the socket end to an end adjacent to the operation end. A receptacle, the second virtual through axis and the first virtual through axis On the same axis, the pushing seat is provided with a first receiving groove along the radial direction of the second virtual through axis. The first receiving groove forms a first side on a side adjacent to the operation end and is adjacent to the socket. A second side is formed on one side of the end, and a first clamping member is formed in the first receiving groove from the first side thereof. The first clamping member extends toward the second side of the first receiving groove. The above-mentioned structure of the pump head reduces parts, thereby reducing costs, reducing gaps due to accumulated tolerances of parts, and thereby making the operation effect precise and reliable.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent according to the scope of the patent application of the present invention Changes and modifications should still fall within the scope of the invention patent.

10‧‧‧ Pump head
20‧‧‧Shell
21‧‧‧ Outer tube
211‧‧‧ trough
212‧‧‧Operator
213‧‧‧Socket
214‧‧‧Shoulder
22‧‧‧Trigger
23‧‧‧ cover
30‧‧‧ Pressing device
31‧‧‧ jack
32‧‧‧airtight ring
33‧‧‧ Rongcon
34‧‧‧ convex post
35‧‧‧First tank
351‧‧‧first side
352‧‧‧second side
353‧‧‧third side
354‧‧‧ fourth side
355‧‧‧first clamp
356‧‧‧First clamping section
36‧‧‧Second tank
361‧‧‧first side
362‧‧‧second side
363‧‧‧third side
364‧‧‧Fourth side
365‧‧‧Second clamp
366‧‧‧Second clamping section
37‧‧‧Compression spring
38‧‧‧ Top heart
381‧‧‧Snap flange
L1‧‧‧The first virtual through axis
L2‧‧‧Second virtual through axis
WL‧‧‧Snap width
WR‧‧‧Release width
WH‧‧‧Clamping width

FIG. 1 is a perspective view of the head of a simple pump according to the present invention. FIG. 2 is an exploded perspective view of a simple pump head of the present invention. FIG. 3 is an exploded perspective view of the simple pump head of the present invention from another perspective. Fig. 4 is a sectional structural view of the head of a simple pump according to the present invention. FIG. 5 is a partially enlarged cross-sectional structural view of a simple pump head of the present invention. FIG. 6 is a cross-sectional structure view taken on line 5-5 in FIG. 4, showing a cross-sectional structure at a first clamping member. FIG. 7 is a cross-sectional structure view taken on line 6-6 in FIG. 4, showing a cross-sectional structure at a second clamping member. FIG. 8 is a diagram showing a state of use of a simple type inflator head connected to a French air nozzle and a trigger member pulled up. FIG. 9 is a partially enlarged use state diagram of the simple type inflator according to the present invention after the head is connected to a French air nozzle and the trigger is pulled up. FIG. 10 is a diagram showing a state of use of a simple type pump in accordance with the present invention after the head is connected to an American-style gas nozzle and the trigger is pulled up.

10‧‧‧ Pump head

20‧‧‧Shell

21‧‧‧ Outer tube

211‧‧‧ trough

212‧‧‧Operator

213‧‧‧Socket

22‧‧‧Trigger

23‧‧‧ cover

30‧‧‧ Pressing device

31‧‧‧ jack

32‧‧‧airtight ring

33‧‧‧ Rongcon

35‧‧‧First tank

351‧‧‧first side

355‧‧‧first clamp

37‧‧‧Compression spring

38‧‧‧ Top heart

381‧‧‧Snap flange

Claims (15)

A simple pump head includes: a shell, the shell includes an outer sleeve and a trigger, the outer sleeve is provided with a through slot along a first virtual through axis, and the outer sleeve is along the An axial end of the first virtual through-shaft is provided with an operation end and a sleeve end is provided at an end different from the operation end, and the trigger is pivotally disposed at the operation end; a pressing device is provided; In the slot of the outer casing, the pressing device includes an ejector seat and an air-tight ring, the ejector seat is adjacent to the operation end and the air-tight ring is adjacent to the sleeve end, and one end of the ejector seat The other end, which is abutted against the trigger, is abutted against the air-tight ring in a direct contact manner, and the air-tight ring is provided with a recess along the radial outer periphery of the first virtual through axis, and the recess surface An ejection hole is recessed along an axial direction of a second virtual through shaft from the end adjacent to the socket end to the end adjacent to the operation end, and does not contact the inner wall surface of the outer casing through groove. The virtual through axis is on the same axis as the first virtual through axis, The pushing seat is provided with a first receiving groove along the radial direction of the second virtual through axis, and the first receiving groove forms a first side on a side adjacent to the operation end and a side adjacent to the socket end. On the second side, a first clamping member is formed in the first receiving groove from the first side thereof, and the first clamping member extends toward the second side of the first receiving groove. The simple pump head according to claim 1, wherein the ejector seat has an integrally formed structure. The head of the simple type inflator according to claim 2, wherein the first clamping member is provided with a first clamping portion adjacent to an end of the second side of the first receiving groove and a side adjacent to the receiving hole. The first clamping portion is capable of deforming and swinging with respect to the pushing base by the elasticity of the first clamping member. The simple inflator head according to claim 3, wherein the pushing base is provided with a second receiving groove along the radial direction of the second virtual through-shaft, the first receiving groove and the second receiving groove respectively The second receiving groove is disposed on two different sides of the receiving hole and communicates with the receiving hole. The second receiving groove forms a first side on a side adjacent to the operation end and a second side on a side adjacent to the socket end. A second clamping member is formed in the second receiving groove from a first side thereof, the second clamping member extends in a direction of the second side of the second receiving groove, and the second clamping member is adjacent to the second One end of the second side of the receiving groove and a side adjacent to the receiving hole is provided with a second clamping portion, and the second clamping portion is capable of deforming and swinging with respect to the pushing base by the elasticity of the second clamping member. A clamping portion and the second clamping portion are opposed to each other. The simple pump head described in claim 4, wherein the first tank is further formed with a third side and a fourth side between the first side and the second side of the first tank. The third side and the fourth side are opposite to each other, the first holding member does not contact the second side, the third side, and the fourth side of the first receiving groove, and the second receiving groove is on the first side and the second side thereof A third side and a fourth side are also formed therebetween. The third side and the fourth side of the second receiving groove are opposite to each other, and the second clamping member does not contact the second side and the first receiving side of the second receiving groove. Three sides and fourth side. The simple pump head according to claim 5, wherein the pressing device is provided with a compression spring and a top core in the accommodation hole, and one end of the compression spring abuts the bottom surface of the accommodation hole, and the top The core is movably disposed in the receiving hole along the second virtual through-axis axially relative to the ejection seat, and the first clamping member can use elasticity to move the first clamping portion in a direction away from the ejection center, The second clamping member can move the second clamping portion in a direction away from the top core by using elasticity. The simple pump head according to claim 6, wherein the trigger is capable of pivoting relative to the outer sleeve between a release position and a clamping position, and when the trigger is in the release position, the first clamp And the second clamping member are far from the top core, and when the trigger is in the clamping position, the first clamping member and the second clamping member are close to the top core. The simple pump head according to claim 7, wherein an outer peripheral edge of the top core is provided with a latching flange protruding along a radial ring of the second virtual through axis, and the latching flange is along the second The maximum radial radial width of the virtual through-shaft forms a latching width. When the trigger is in the release position, the distance between the first clamping portion and the second clamping portion forms a release width, and the release width is not less than The clamping width, when the trigger is in the clamping position, the distance between the first clamping portion and the second clamping portion forms a clamping width, and the clamping width is smaller than the clamping width. The simple pump head according to claim 6, wherein a bottom surface of the jack on the end of the receiving hole adjacent to the operating end is provided with a convex column along the second virtual through axis, and the compression spring sleeve The top core is provided on the convex column, and the top core has a hollow structure. The top core is sleeved on an end of the compression spring that is different from the convex column. The simple type pump head according to any one of claims 1 to 9, wherein a cross section of the recessed portion in a direction parallel to the axial direction of the first virtual through axis is arc-shaped. The simple type pump head according to claim 10, wherein the recess surrounds the airtight ring around the first virtual through axis as a circle. According to the simple pump head according to any one of claims 1 to 9, wherein the through slot is in the shape of a circular hole, the receiving hole is in the shape of a circular hole, and an end of the receiving hole adjacent to the operating end is closed. The simple inflator head according to any one of claims 1 to 9, wherein a shoulder is provided in a slot of the outer sleeve, and the slot is formed along the shoulder adjacent to the sleeve end. The inner diameter in the radial direction of the first virtual through axis is smaller than the inner diameter in the radial direction of the first virtual through axis on the side of the shoulder adjacent to the operating end. The simple pump head according to claim 13, wherein the inner diameter of the shoulder along the radial direction of the first virtual through axis is gradually reduced from the side adjacent to the operating end to the side adjacent to the socket end. Conical bevel. The simple pump head according to any one of claims 1 to 9, wherein the housing includes a cover member, the cover member is combined with the socket end, and the airtight ring is different from the ejector seat One end of the abutment is against the cover.