TWM492435U - Pressure gauge with releasing function - Google Patents

Description

Pressure gauge

This creation is a pressure gauge with a deflated function, especially a pressure gauge with a simplified structure and automatic deflation.

The existing pressure gauge comprises a body, a copper tube is arranged in the body, and a panel and a pointer are arranged on the body. When the gas passes through the pressure gauge, the gas pressure causes the copper tube to deform and drives the pointer to rotate. The greater the air pressure, the greater the amount of deformation of the copper tube, the greater the amount of rotation of the pointer, the user can view the pointer on the panel to read the pressure value.

However, the copper pipe is set on the pressure gauge with a tin welding group, the structure is complicated and the assembly is slow, and the cost is high, and the soldering strength of the copper-welded copper pipe and the copper pipe is not good, and it is easily damaged when subjected to vibration or falling. .

The main purpose of this creation is to provide a pressure gauge with a gas venting function, thereby improving the pressure gauge using a tin-welded copper tube, resulting in a problem of poor assembly strength, and a problem of complicated structure, slow assembly, and high cost.

In order to achieve the foregoing, the pressure-dissipating pressure gauge of the present invention comprises: a body comprising a positioning rod and a casing disposed on the positioning rod, the inside of the positioning rod forming a through inner flow passage, and The positioning rod is provided with a through hole communicating with the inner flow passage. The outer casing forms a chamber and forms an inlet and an outlet communicating with the inner flow passage. The middle portion of the outer side surface of the outer casing is provided with a connecting chamber. a venting opening, and a panel portion of the outer side of the outer casing, wherein the panel portion is provided with a sliding slot that communicates with the chamber and is parallel to the marking member; a sleeve movably sleeved at the positioning a rod is located in the outer casing, the sleeve has a cylinder, and an outer side of the cylinder is provided with an index extending from the sliding slot and movable along the sliding slot; and an elastic member sleeved on the sleeve The positioning rod is located in the outer casing, and two ends of the elastic member respectively abut the outer casing and the sleeve.

In the above, the gas enters the inner flow passage from the inlet and flows out from the outlet, and the gas flows into the chamber through the through hole, thereby pushing the sleeve, and the gas pressure is increased, the moving distance of the sleeve is increased, and the index is The sleeve moves together, and the moving pressure index and the marking member can directly read the gas pressure value, and after the sleeve moves to a certain distance, the sleeve does not close the vent hole, so that the gas entering the chamber further flows out of the vent hole. In order to adjust the maximum value of the gas pressure, the structure of the pressure-dissipating pressure gauge is simplified and can reduce the cost, and has the advantages of quick assembly and resistance to falling.

Referring to FIG. 1 to FIG. 3, a preferred embodiment of the pressure gauge having a deflation function comprises a body, a sleeve 30 and an elastic member 40.

The base body includes a positioning rod 10 and a casing 20 disposed on the positioning rod 10. The positioning rod 10 defines a through inner flow passage 11 therein, and the positioning rod 10 is provided with a through hole communicating with the inner flow passage 11. 12, a housing 211 is formed in the outer casing 20, and an inlet 231 and an outlet 221 are formed. The outer portion of the outer surface of the outer casing 20 is provided with a vent hole 212 connecting the chamber 211. And the outer side of the outer casing 20 is provided with a panel portion 24 of the indicator member 25, and the panel portion 24 is provided with a sliding slot 26 that communicates with the chamber 211 and is parallel to the indicator member 25. The through hole 12 of the positioning rod 10 is adjacent to the through hole 12 The inlet 231 of the outer casing 20.

The sleeve 30 is movably sleeved on the positioning rod 10 and located in the outer casing 20. The sleeve 30 has a cylinder 31, and an outer surface of the cylinder 31 is provided with an index 32. The indicator 32 is extended. The sliding slot 26 is movable along the sliding slot 26, and the indicator 32 is located at one end of the cylinder 31 adjacent to the first end cover 22, and the cylinder 31 is provided with a retaining ring 33 at an end adjacent to the second end cover 23. .

The elastic member 40 is sleeved on the positioning rod 10 and located in the outer casing 20 . The two ends of the elastic member 40 respectively abut the outer casing 20 and the sleeve 30 .

In the above, the outer casing 20 includes a casing 21, and a first end cover 22 and a second end cover 23 are respectively disposed at two ends of the casing 21. The outlet 221 is located at the first end cover 22, and the inlet is The second end cover 23 is disposed on the panel portion 24, and a cover 27 is disposed on the panel portion 24, and an opening 241 is formed to communicate with the sliding slot 26, and a plurality of stoppers 28 disposed at the opening 241 are disposed. The cover member 28 is provided with a fastening recess 242 at one end of the cover portion 241. The cover portion 27 is respectively provided with a fastening protrusion at two ends of the cover portion 241. a portion 271 and a plurality of recesses 272 extending into the fastening recess 242, the stopper 28 extending into the coupling recess 272, and further disposed between the housing 21 and the second end cover 23 There is a washer 29.

Referring to FIG. 3, when the gas does not pass the pressure gauge with the deflation function, the gas pressure value is zero, and the index 32 of the sleeve 30 is located at one end of the chute 26 and adjacent to the middle portion of the casing 21, And the cylinder 31 blocks the air vent 212.

Wherein, the first end cover 22 of the pressure-dissipating pressure gauge is connected to the object to be inflated, and the second end cover 23 is connected to the inflator. Referring to FIG. 4, the gas pumped by the pump enters the inside through the inlet 231. The flow passage 11 further flows into the object to be inflated through the outlet 221 of the first end cover 22, and a portion of the gas entering the inner flow passage 11 flows into the retaining ring 33 of the sleeve 30 and the housing 21 through the through hole 12. The chamber 211 further pushes the cylinder 31 to move, so that the indicator 32 moves toward the first end cover 22. The user can directly view the moving indicator 32 through the cover 27 and cooperate with the indicator member 25 to easily read. Take the pressure value.

Referring to FIG. 5 again, when the gas pressure generated by the pump is too large, the sleeve 30 moves closer to the first end cover 22, and the stopper 28 passes through the air vent 212 to make the stopper 28 and the housing 21 The chamber 211 communicates with the vent hole 212, and the gas in the chamber 211 further flows out of the vent hole 212 to achieve pressure relief to adjust the air pressure.

In summary, the pressure-dissipating pressure gauge allows the gas pressure to directly push the sleeve 30 to easily read the pressure value, is easy to read and has good precision, and the structure of the pressure-dissipating pressure gauge is simplified and can be reduced. The cost has the advantages of quick assembly and resistance to falling. In addition, the pressure-dissipating pressure gauge provides a venting hole 212, which can adjust the maximum value of the gas pressure to avoid damage caused by excessive gas pressure to the object to be inflated, and has excellent safety. .

10‧‧‧ Positioning rod
11‧‧‧Inside runner
12‧‧‧through hole
20‧‧‧ Shell
21‧‧‧ housing
211‧‧ ‧ room
212‧‧‧ Ventilation holes
22‧‧‧First end cap
221‧‧‧Export
23‧‧‧Second end cap
231‧‧‧ entrance
24‧‧‧Face Department
241‧‧‧ openings
242‧‧‧Snap recess
25‧‧‧Markings
26‧‧‧Chute
27‧‧‧ Cover
271‧‧‧ buckled convex
272‧‧‧Group recess
28‧‧‧blocks
29‧‧‧Washers
30‧‧‧ sleeve
31‧‧‧Cylinder
32‧‧‧ indicators
33‧‧ ‧ retaining ring
40‧‧‧Flexible parts

Figure 1 is a perspective exploded view of a preferred embodiment of a pressure gauge having a deflated function. Fig. 2 is a schematic view showing the stereoscopic appearance of a preferred embodiment of a pressure gauge having a deflated function. Fig. 3 is a schematic cross-sectional view showing a preferred embodiment of a pressure gauge having a deflated function. Fig. 4 is a schematic view showing the state of use of the measuring gas in a preferred embodiment of the pressure gauge having a deflation function (1). Fig. 5 is a schematic view showing the state of use of the measuring gas in a preferred embodiment of the pressure gauge having a deflated function (2).

10‧‧‧ Positioning rod

11‧‧‧Inside runner

12‧‧‧through hole

20‧‧‧ Shell

21‧‧‧ housing

211‧‧ ‧ room

212‧‧‧ Ventilation holes

22‧‧‧First end cap

221‧‧‧Export

23‧‧‧Second end cap

24‧‧‧Face Department

241‧‧‧ openings

242‧‧‧Snap recess

25‧‧‧Markings

26‧‧‧Chute

27‧‧‧ Cover

271‧‧‧ buckled convex

272‧‧‧Group recess

28‧‧‧blocks

29‧‧‧Washers

30‧‧‧ sleeve

31‧‧‧Cylinder

32‧‧‧ indicators

33‧‧ ‧ retaining ring

40‧‧‧Flexible parts

Claims (6)

A pressure gauge having a deflation function, comprising: a body comprising a positioning rod and a casing disposed on the positioning rod, the positioning rod internally forming a through inner flow passage, and the positioning rod is provided with a communication inner portion a through hole of the flow path, a cavity is formed inside the outer casing and an inlet and an outlet are formed to communicate with the inner flow passage, and a middle portion of the outer side surface of the outer casing is provided with a vent hole connecting the chamber, and the outer casing The outer side surface is provided with a panel portion of the indicator member, the panel portion is provided with a sliding slot that communicates with the chamber and is parallel to the indicator member; a sleeve is movably sleeved on the positioning rod and located in the outer casing, The sleeve has a cylinder, and an outer surface of the cylinder is provided with an index extending from the sliding slot and movable along the sliding slot; and an elastic member sleeved on the positioning rod and located in the outer casing The two ends of the elastic member respectively abut the outer casing and the sleeve. A pressure gauge having a deflation function according to claim 1, wherein the outer casing comprises a casing, and a first end cover and a second end cover are respectively disposed at two ends of the casing, and the outlet is located at the first An end cover, the inlet is located at the second end cover, the outer casing is provided with a cover on the panel portion, and an opening connecting the sliding slot is provided, and a set of stoppers disposed at the opening is disposed, the block The block abuts the cover and the first end cap. The pressure gauge of the venting function of claim 2, wherein the panel portion is provided with a fastening recess at one end of the opening, and a fastening protrusion and a set of concave portions are respectively disposed at two ends of the cover. The fastening protrusion protrudes into the fastening recess, and the stopper extends into the assembly recess. A pressure gauge having a deflation function according to claim 2, wherein a gasket is disposed between the casing and the second end cover. A pressure gauge having a deflation function according to claim 3, wherein a gasket is disposed between the casing and the second end cover. A pressure gauge having a deflation function according to any one of claims 1 to 5, wherein the through hole of the positioning rod is adjacent to the inlet of the outer casing.