TWM479986U - Linkage device of air cylinder of pump and pressure gauge - Google Patents

Description

Connecting device of cylinder and pressure gauge of pump

This creation is about the creation of a pump, especially a connection between a cylinder of a two-cylinder pump and a pressure gauge.

As shown in FIG. 5 and FIG. 6, a conventional two-cylinder type air pump is disclosed. The two-cylinder type air pump 5 is mainly composed of a movable pedal mounted on a base 50, and the pedal is provided. There are two cylinders 51 connected between the pedal and the base 50. The two cylinders 51 are juxtaposed in parallel, and the two cylinders 51 are connected to a gas outlet end of the cylinder block, and a connecting device 52 is connected to a pressure gauge 53 and a gas nozzle. The conduit 54 of the joint is such that the pump 5 can be connected to the gas to be inflated by the nozzle joint at the end of the conduit 54, and the air pressurized by the cylinder 51 is poured into the to-be-inflated body through the connecting device 52 and the conduit 54 by pressing the pedal, the pressure Table 53 shows the pressure of the gas to be inflated.

However, as shown in FIG. 5 and FIG. 7 , the connecting device 52 connected between the two cylinders 51 and the pressure gauge 53 is composed of a base pipe 521 and two. The combination of the four parts of the connecting pipe 522 and the joint pipe 523 has a large number of parts, high production and processing cost, time-consuming assembly and labor, high assembly cost, and the two connecting pipes 522 and the joint pipe 523 are assembled by the base pipe 521. The sealing portion between the two is mostly a sealed combination structure of the axial compression washers 524 and 525. If the components are not completely locked, air leakage is likely to occur.

Furthermore, in the above-described configuration of the conventional two-cylinder type air pump, a single needle-shaped rubber seal 526 is provided in the joint pipe member 523 as a valve member for high-pressure gas returning during air-burning, and the needle-shaped rubber seal member 526 is required. With the pores of the small hole shape, the pump 5 is prone to problems such as outgassing, difficulty in pumping, etc. during use.

The main purpose of this creation is to provide a connection device between the cylinder of the pump and the pressure gauge. It is created to improve the connection between the cylinder and the pressure gauge in the existing pump, and it takes time and labor, high cost and sealing part. More, easy to leak and other issues.

In order to achieve the foregoing disclosure, the connecting device of the cylinder and the pressure gauge of the pump proposed by the present invention is connected between two parallel juxtaposed cylinders and a pressure gauge in the pump, and the connecting device includes a communication. a pipe member and a two-ball ball, wherein: the connecting pipe member comprises a pipe body, and a blocking valve pipe is integrally formed at two ends of the pipe body, and the two blocking valve pipes are protruded toward a side of the pipe body, and the second blocking is The valve tube is respectively connected to the outlet end of the cylinder, and the middle portion of the tube body integrally forms an extension tube protruding toward the other side of the tube body, and a pressure gauge nozzle is integrally formed on the extension tube, and the pressure gauge nozzle is used for assembling a connecting end portion of the pressure gauge, the extension tube is integrally formed with a joint with respect to the other end of the pipe body, and the inside of the pipe body has a closed passage at both ends, and the joint and the pressure gauge take over the passage of the pipe body through the inside of the extension pipe, the resistance The return valve tubes each include a joint pipe portion having a perforation therein and a hollow sleeve pipe portion located outside the joint pipe portion. The perforation of the joint pipe portion communicates with the passage of the pipe body, and an outer ring of the joint pipe portion is sleeved with an airtight ring. Joint management department Forming an opening at the other end of the pipe body, the two return valve tubes can be respectively fixed to the outlet end of the cylinder; the two valve ball systems are respectively disposed at the port of the sleeve portion of the return valve tube, and can The valve ball can be coupled to the outlet end of the cylinder as the two return valve tubes are respectively assembled to the outlet end of the cylinder.

Created by the connection device of the front cylinder and the pressure gauge, the main purpose is to make the connecting pipe piece into an integrally formed four-way pipe fitting, so that the connecting device has a combined four-way pipe fitting in the conventional cylinder and pressure gauge connecting device, The components are reduced, the production cost is reduced, and the connection device is assembled quickly, saves time and labor, and reduces labor costs. In terms of the overall composition, the creation is created by the innovative integrated four-way pipe-type connecting pipe, so that the sealing combination is reduced, and the sealing position between the connecting pipe and the cylinder and the pressure gauge is combined by radial sealing. The structure can be tightly combined to effectively avoid air leakage.

In addition, the present invention can further utilize a combination of a valve ball and a blocking valve tube integrally formed on the pipe body in the connecting pipe member, so that the air outlet can be appropriately enlarged, and the air outlet smoothness can be improved when the air pump is used for air pumping. And pumping is more labor-saving.

As shown in Fig. 1, a preferred embodiment of the connecting device of the cylinder of the present inflator and the pressure gauge is disclosed. The connecting device 2 of the cylinder and the pressure gauge includes a communicating pipe member 20 and a two-ball ball 30, or further includes an end cap 40.

As shown in FIG. 1 to FIG. 3, the connecting pipe member 20 includes an integrally formed tubular body 21, two return valve tubes 22, an extension tube 23, a pressure gauge connector 24 and a joint 25, the tube The body 21 has a passage 211, and the tubular body 21 can form a closed end at both ends of the passage 211; or one end of the tubular body 21 forms a closed end 214, and the tubular body 21 forms an opening having a passage opening 212 at the other end of the passage 211. End 213.

As shown in FIG. 1 to FIG. 3, the open end 213 of the tubular body 21 can also form a plurality of spaced apart latching grooves 215 adjacent to the passage opening 212. The end faces of the open end portions 213 form a plurality of latching projections. The edge 216 defines a plurality of inlets 217 at the periphery of the passage opening 212. The plurality of inlets 217 extend axially to communicate with the latching groove 215. In the preferred embodiment, the open end 213 of the tubular body 21 has two radial corresponding latching slots 215, and the end faces of the open end 213 form two latching flanges 216 having a beveled surface. The rims 216 respectively correspond to the two latching slots 215, and the slopes of the two latching flanges 216 are opposite to each other.

As shown in FIG. 1 to FIG. 3, the two return valve tubes 22 are respectively formed at two ends of the tube body 21 and protrude toward the same side, and the return valve tube 22 includes a joint tube having a perforation therein. The portion 221 and a hollow sleeve portion 222 located outside the joint tube portion 221, the perforation of the joint tube portion 221 communicates with the passage 211 of the tube body 21, and the outer portion of the joint tube portion 221 is sleeved with an airtight ring 223, and the sleeve portion is sleeved. The opening 222 forms an opening with respect to the other end of the tubular body 21, and a fixing screw 224 is screwed on the sleeved tube portion 222, so that the two returning valve tubes 22 can be respectively assembled to the outlet end portion 121 of the cylinder.

As shown in FIG. 1 to FIG. 3, one end of the extension tube 23 is formed in a middle portion of the tubular body 21 and protrudes oppositely with respect to the two return valve tubes 22. The extension tube 23 has an extending passage 211 therein, and the extending passage 211 The passage 211 inside the tubular body 21 is extended. In the preferred embodiment, a fin 232 protrudes from each side of the wall of the extension tube 23, and each of the fins 232 is provided with a fixing hole.

As shown in FIG. 1 to FIG. 3, the pressure gauge connector 24 is formed on the extension tube 23. The pressure gauge connector 24 has a plurality of connection holes 241, and the assembly hole 241 communicates with the extension channel 211 in the extension tube 23. The pressure gauge nozzle 24 is connected to the assembly end portion 131 of the pressure gauge 13 by its assembly hole 241.

As shown in FIGS. 1 to 3, the joint 25 is formed on the other end of the extension pipe 23 with respect to the pipe body 21, and is connected to a pipe having a nozzle joint.

As shown in FIG. 1 to FIG. 3, the two valve balls 30 are respectively disposed at the ports of the sleeve tube portion 222 of the return valve tube 22, and the two return valve tubes 22 are respectively connected to the air outlet of the cylinder 12. The end portion 121, the valve ball 30 can be engaged with the air outlet end portion 121 of the cylinder 12 by a difference in air pressure to form a blocking valve, and the valve ball 30 can be a ball made of rubber material.

As shown in FIG. 1 and FIG. 3, the end cap 40 is closed to the open end 213 of the tubular body 21 to close the passage opening 212. In the preferred embodiment, the end cap 40 includes a cover. The body 41, a plug portion 42 and a sealing ring 43 are formed on one side of the cover 41, the sleeve 43 is set on the outer peripheral surface of the plug portion 42, and the plug portion 42 is sealed on the cover 41. The outer peripheral surface between the loops 43 forms a latching projection 421 corresponding to the inlet 217. The lid body 41 forms a plurality of elastic snaps 411. The end cap 40 is inserted into the tubular body with the plug portion 42 of the sealing ring 43. In the passage opening 212 of the passage opening 212, the passage opening 212 is closed by the sealing ring 43 abutting between the bolt portion 42 and the peripheral wall of the passage opening 212, and the latching convex portion 421 of the outer peripheral surface of the plug portion 42 is inserted into position. The opening 217 is rotated by an angle of the end cover 40 to cause the latching protrusion 421 to be locked in the latching slot 215, and the elastic latch 411 is fastened to the latching flange 216 of the open end 213 of the tubular body 21, The end cap 40 is fixed to the open end 213 of the tubular body 21 of the communicating tubular member 20. When the end cap 40 is disassembled, the end cap 40 is reversely rotated at an angle to disengage the elastic snap from the latching flange 216 of the tubular body 21, and the latching projection 421 on the plug portion 42 of the end cap 40 is moved to the inlet. At 217, the end cap 40 can be removed from the open end 213 of the tubular body 21 of the connecting tubular member 20.

As shown in FIG. 2 and FIG. 4, the connecting device 2 of the present cylinder and the pressure gauge is applied to the inflator 1, which is installed in the base 10 of the inflator 1, and is connected to the parallel of the inflator 1 Between the parallel cylinder 12 and a pressure gauge 13, wherein the outlet end portions 121 of the two cylinders 12 respectively extend into the sleeve tube portion 222 of the two blocking valve tubes 22 of the connecting tubular member 20, and are airtightly fitted. The outlet end portion 121 of the cylinder 12 is fixedly connected to the return valve tube 22 of the communication tube member 20 by a fixing screw 224, and the pressure gauge connector 24 of the communication tube member 20 is connected to the pressure gauge 13 The end portion 131 is assembled, and the pressure gauge 13 is fixed to the fin 232 of the extension pipe 23 of the communication pipe member 20 by screws, and the joint 25 of the communication pipe member 20 is sleeved with a pipe having a nozzle joint.

When the air pump is in use, the air nozzle joint at the end of the air pump tube is connected to the air nozzle of the tire waiting for the inflator, and the pressure gauge 13 is connected through the extension tube 23, the joint 25 and the duct connecting the tube member 20. Inside the gas to be inflated, the pressure gauge 13 is displayed to indicate the internal pressure of the gas to be inflated. When in use, the pedal 11 of the pump is driven to drive the cylinder of the cylinder 12, the connecting device 2 and the pressure gauge 13 to move, wherein the air pressurized in the cylinder 12 is caused by the condensation of the cylinder of the cylinder 12 with the piston. The valve ball 30 at the cylinder outlet end portion 121 is pushed open, and then poured into the to-be-inflated body through the connecting pipe member 20, the conduit, etc., and the pressure gauge 13 displays the air pressure value; when the pedal 11 is released, the pedal 11 and the cylinder 12 are based on the base. The torsion spring on the seat drives the reset, and the cylinder 12 is taken in from the outside. The internal pressure of the connecting pipe 20 is greater than the cylinder 12, and the ejector ball 30 automatically closes the outlet end 121 of the cylinder 12, thereby repeatedly inflating the pedal 11 Until the inflated material is finished pumping.

1‧‧‧Inflator
10‧‧‧ Pedestal
11‧‧‧ pedal
12‧‧‧ cylinder
121‧‧‧Exhaust end
13‧‧‧ Pressure gauge
131‧‧‧Group end
14‧‧‧ catheter
2‧‧‧Connecting device
20‧‧‧Connected fittings
21‧‧‧ tube body
211‧‧‧ channel
212‧‧‧ passage opening
213‧‧‧Open end
214‧‧‧closed end
215‧‧‧ card slot
216‧‧‧掣 flange
217‧‧‧ Entrance
22‧‧‧Return valve tube
221‧‧‧ joint pipe department
222‧‧‧Set of joint management department
223‧‧‧ airtight ring
224‧‧‧ fixing screws
23‧‧‧ Extension tube
231‧‧‧Extension channel
232‧‧‧Flap
24‧‧‧ Pressure gauge takeover
241‧‧‧Group holes
25‧‧‧Connectors
30‧‧‧Valve ball
40‧‧‧End cover
41‧‧‧ Cover
411‧‧‧Flexible buckle
42‧‧‧Plug
421‧‧‧Carmen convex
43‧‧‧Seal ring
5‧‧‧Inflator
50‧‧‧ pedestal
51‧‧‧ cylinder
52‧‧‧Connecting device
521‧‧‧Base tube
522‧‧‧Connecting tube
523‧‧‧Connected fittings
524, 525‧‧‧ washers
526‧‧‧needle rubber seals
53‧‧‧ Pressure gauge
54‧‧‧ catheter

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective exploded view of a preferred embodiment of a coupling device for a cylinder and a pressure gauge of the present invention. 2 is a bottom perspective view showing a preferred embodiment of the connecting device of the cylinder and the pressure gauge shown in FIG. 1 applied to the inflator. 3 is a partial bottom cross-sectional view showing a preferred embodiment of the connecting device for the cylinder and the pressure gauge shown in FIG. 1 applied to the inflator. Fig. 4 is a view showing the state of use of the preferred embodiment of the connecting device for the cylinder and the pressure gauge shown in Fig. 1 applied to the inflator. FIG. 5 is a bottom perspective view of a conventional two-cylinder type air pump. Figure 6 is a partial cross-sectional view showing the double cylinder type pump shown in Figure 5.

1‧‧‧Inflator

10‧‧‧ Pedestal

11‧‧‧ pedal

12‧‧‧ cylinder

121‧‧‧Exhaust end

13‧‧‧ Pressure gauge

131‧‧‧Group end

14‧‧‧ catheter

2‧‧‧Connecting device

20‧‧‧Connected fittings

21‧‧‧ tube body

211‧‧‧ channel

212‧‧‧ passage opening

213‧‧ ‧ end of the gate

214‧‧‧closed end

215‧‧‧ card slot

216‧‧‧掣 flange

217‧‧‧ Entrance

22‧‧‧Return valve tube

221‧‧‧ joint pipe department

222‧‧‧Set of joint management department

223‧‧‧ airtight ring

224‧‧‧ fixing screws

23‧‧‧ Extension tube

231‧‧‧Extension channel

232‧‧‧Flap

24‧‧‧ Pressure gauge takeover

241‧‧‧Group holes

25‧‧‧Connectors

30‧‧‧Valve ball

40‧‧‧End cover

41‧‧‧ Cover

42‧‧‧Plug

43‧‧‧Seal ring

Claims (7)

a connecting device between a cylinder of a pump and a pressure gauge is connected between two parallel juxtaposed cylinders and a pressure gauge in the pump, the connecting device comprises a connecting pipe and a two-ball ball, wherein: The connecting pipe member comprises a pipe body, and a blocking valve pipe is integrally formed at two ends of the pipe body, the two blocking valve pipes are protruded toward a side of the pipe body, and the two blocking valve pipes are respectively connected to the cylinder The outlet end portion is integrally formed with an extension pipe protruding toward the other side of the pipe body, and a pressure gauge nozzle is integrally formed on the extension pipe, and the pressure gauge connection pipe is used for assembling the assembly end portion of the pressure gauge and extending The tube is integrally formed with a joint with respect to the other end of the tube body, and the inside of the tube body has a closed channel at both ends, and the joint and the pressure gauge take over the passage of the tube body through the inside of the extension tube, and the blocking valve tube each includes a perforation therein. The joint pipe portion and a hollow sleeve pipe portion located outside the joint pipe portion, the perforation of the joint pipe portion communicates with the passage of the pipe body, the outer side of the joint pipe portion is sleeved with an airtight ring, and the sleeve portion is opposite to the other end of the pipe body Forming an opening The two blocking valve tubes can be respectively fixed to the outlet end of the cylinder; the two valve ball systems are respectively disposed at the port of the sealing tube portion of the blocking valve tube, and can be respectively associated with the two blocking valve tubes The valve ball is connected to the outlet end of the cylinder, and the valve ball can be disengaged from the outlet end of the cylinder. The connecting device of the cylinder of the pump and the pressure gauge according to claim 1, wherein the tubular body of the connecting tubular member forms a closed end at one end of the passage, and the tubular body forms an open end having a passage opening at the other end of the passage. A detachable end cap is mounted on the open end to close the passage opening. The connecting device of the cylinder of the pump and the pressure gauge according to claim 2, wherein the open end of the tubular body forms a plurality of spaced apart latching grooves at the opening adjacent to the passage, and the end faces of the open ends form a plurality of a latching flange, the open end forming a plurality of inlets at a periphery of the passage opening, the plurality of inlets extending axially respectively to communicate with the latching groove; the end cap comprising a cover body and a side formed on the cover body a plug portion and a set of sealing ring ring disposed on the outer peripheral surface of the plug portion, the plug portion forming a latching convex portion corresponding to the inlet at an outer peripheral surface between the cover body and the sealing ring ring, and the cover body forms a plurality of elastic cards The buckle is inserted into the passage opening of the pipe body with the plug portion of the sealing ring, and the sealing ring abuts between the bolt portion and the peripheral wall of the passage opening, and the passage opening is closed, and the card of the outer peripheral surface of the bolt portion is closed. The end of the convex portion of the convex portion is inserted into the inlet, the end cover can be rotated by an angle, and the convex portion of the latch is locked in the latching groove, and the elastic snap fastener is fastened to the latching flange of the open end of the tubular body. The end cap is fixed to the open end of the tubular body of the connecting tubular member. The connecting device of the cylinder of the pump and the pressure gauge according to claim 3, wherein the open end of the tubular body has two radial corresponding latching grooves, and the open end end faces form two latching convex portions having a slope The two latching flanges respectively correspond to the two latching slots, and the inclined faces of the two latching flanges are opposite to each other. The connecting device of the cylinder of the pump and the pressure gauge according to any one of claims 1 to 4, wherein a flange having a fixing hole protrudes from both sides of the extending pipe wall of the communicating pipe. The connection device between the cylinder of the pump and the pressure gauge according to any one of claims 1 to 4, wherein the valve ball is a rubber ball. The connecting device of the cylinder of the pump and the pressure gauge according to claim 5, wherein the valve ball is a rubber ball.