CN212718063U

CN212718063U - Pressure regulating device of air exhaust tire pressure gun

Info

Publication number: CN212718063U
Application number: CN202021304933.7U
Authority: CN
Inventors: 柯泉清
Original assignee: Wenling Chuangyi Pneumatic Tools Co ltd
Current assignee: Wenling Chuangyi Pneumatic Tools Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-16
Anticipated expiration: 2030-07-06

Abstract

The utility model provides a pressure regulating device of an air exhaust tire pressure gun. The pressure regulating device of the air-extracting tire pressure gun comprises a valve body provided with an outlet and an inlet, wherein a strip-shaped flow channel for communicating the inlet and the outlet is arranged inside the valve body, a regulating mechanism for regulating the air flow discharged into the outlet through the flow channel is arranged in the flow channel, and a circular tube is also arranged in the flow channel and is connected with the valve body through threads; the outer end of the round pipe extends out of the flow channel, the outer end of the round pipe is sealed, and a plurality of air outlet holes are formed in the inner end of the round pipe; the round tube can be internally and detachably provided with a round sheet, the round sheet divides the inner cavity of the round tube into a first cavity and a second cavity, the round sheet is provided with a through hole, the first cavity is filled with a drying agent, the two side walls of the first cavity are provided with notches which are arc-shaped and coaxial with the round tube, the cross section of each notch is at least half of a circle, an inlet is opposite to each notch, and the round sheet can be moved to be opposite to each notch by external force; the outer wall of the circular tube and the inner wall of the flow channel are sealed through two sealing rings, and the gap is located between the two sealing rings. The utility model discloses can step up with higher speed.

Description

Pressure regulating device of air exhaust tire pressure gun

Technical Field

The utility model belongs to the technical field of machinery, a tire pressure rifle, especially a tire pressure rifle regulator bleeds is related to.

Background

The tire pressure gun is used for detecting tire pressure of an automobile and can be used for inflating and deflating, can be used anytime and anywhere, and has the advantages of being fast and convenient.

Existing tire pressure guns are as in the tire pressure gun assemblies previously proposed by the applicant [ application No.: 201721815157.5, including rifle main part and air inlet hose, its characterized in that, rifle main part and air inlet hose between be provided with the regulator, the regulator include the valve body, the valve body in have hollow air runner, air runner one end extend to the casing external through-hole that is formed with, the through-hole on be provided with the control valve, the both sides tip of valve body be provided with connector and rotary joint respectively, the connector be used for linking firmly between regulator and the rifle main part, rotary joint be used for connecting air inlet hose and regulator, the control valve including leaning on the rotatory leading-in base on the through-hole, rotatory leading-in base on seted up the connecting hole, the connecting hole in install the valve rod, valve rod one end link firmly the knob, the other end extends to inside the air runner, and the rod top is provided with sealing piston, the inner end wall of the valve body is provided with a clamping step at the position corresponding to the sealing piston, and the clamping step is used for supporting the sealing piston to realize sealing.

When the tire pressure gun is used in a humid environment, the boosting speed can be seriously tired due to more moisture contained in the air.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides an air exhaust tire pressure gun pressure regulating device capable of accelerating the boosting speed.

The purpose of the utility model can be realized by the following technical proposal: a pressure regulating device of an air-extracting tire pressure gun comprises a valve body, wherein an outlet and an inlet are respectively arranged on the upper side and the lower side of the valve body, a strip-shaped flow channel for communicating the inlet and the outlet is arranged in the valve body, and a regulating mechanism for regulating the flow of air discharged into the outlet through the flow channel is arranged in the flow channel; the outer end of the round pipe extends out of the flow channel, the outer end of the round pipe is sealed, and a plurality of air outlet holes which penetrate through the round pipe in the axial direction are formed in the inner end of the round pipe; a wafer is detachably fixed in the round pipe, the wafer divides the inner cavity of the round pipe into a first cavity and a second cavity which are distributed along the axial direction of the round pipe, the first cavity is positioned between the second cavity and the adjusting mechanism, a plurality of through holes for leading the first cavity and the second cavity are formed in the wafer, granular drying agents are filled in the first cavity, the sizes of the air outlet holes and the through holes are smaller than those of the drying agents, a notch which is arc-shaped and coaxial with the round pipe is formed in the side wall of the second cavity, the cross section of the notch is at least half of a circle, the inlet is opposite to the notch, and the wafer can be moved to be opposite to the notch by external force; the outer wall of the round pipe and the inner wall of the flow channel are sealed through the sealing rings, the two sealing rings are distributed along the axial direction of the round pipe, and the notch is positioned between the two sealing rings.

The using process is as follows: gas enters from the inlet, flows into the flow channel through the notch, the cavity II, the through hole, the cavity I and the gas outlet hole in sequence, and then flows into the outlet through flow regulation of the regulating mechanism. The drying agent is used for absorbing moisture contained in the gas so as to accelerate the pressure rise.

The gap which is arc-shaped and has the cross section of at least one half of round is arranged, so that the wafer can be moved to the gap when in actual use, the gap is reserved for pouring out and replacing the drying agent, and the drying agent drying device has the advantage of convenience in use.

In the air-extracting tire pressure gun pressure regulating device, the shape and the size of the wafer are matched with those of the circular tube, the wafer is positioned in the circular tube in a clamping mode, and at the moment, the side wall of the wafer is in close contact with the inner wall of the circular tube to form sealing.

In the air-extracting tire pressure gun pressure regulating device, the annular convex shoulder is integrally formed on the inner wall of the circular tube, the annular convex shoulder is coaxial with the circular tube, and one end of the wafer, which is close to the regulating mechanism, is pressed against the annular convex shoulder for supporting and limiting the wafer, so that the air-extracting tire pressure gun pressure regulating device is convenient to assemble, enhances the positioning of the wafer and improves the working stability.

In the air-extracting tire pressure gun pressure regulating device, the end face of one end of the circular sheet, which is far away from the annular convex shoulder, is provided with the convex column, the convex column and the circular sheet are coaxially arranged, the convex column is provided with the positioning hole which radially penetrates through the convex column, and the positioning hole is arranged right opposite to the notch. When the drying agent storage rack is used, the positioning hole is matched with the tool to drive the wafer to move, so that the drying agent can be conveniently replaced.

As another scheme, in the pressure regulating device of the air-extracting tire pressure gun, the wafer is detachably connected with the circular tube through threads, a rotating column is integrally formed at one end of the wafer, which is far away from the regulating mechanism, the rotating column and the wafer are coaxial, and one end of the rotating column extends to the notch.

In the air-extracting tire pressure gun pressure regulating device, the outer side wall of the circular tube is provided with two annular grooves, the two sealing rings are respectively arranged in the two annular grooves, and the outer side walls of the sealing rings abut against the inner wall of the flow passage to form sealing.

Compared with the prior art, this pressure regulating device of tire pressure rifle bleeds has following advantage:

1. the drying agent is used for absorbing moisture contained in the gas so as to accelerate the pressure rise.

2. The gap which is arc-shaped and has the cross section of at least one half of round is arranged, so that the wafer can be moved to the gap when in actual use, the gap is reserved for pouring out and replacing the drying agent, and the drying agent drying device has the advantage of convenience in use.

3. The wafer is provided with a convex column with a positioning hole which penetrates through the wafer in the radial direction, so that when the wafer is actually used, the wafer is driven to move by matching a tool with the positioning hole, and the drying agent is convenient to replace.

Drawings

Fig. 1 is a schematic structural view of a pressure regulating device.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a schematic view of the structure of a round tube.

In the figure, 1, a valve body; 1a, an inlet; 1b, an outlet; 2. a flow channel; 3. a gasket; 4. a valve stem; 5. a circular tube; 5a, air outlet holes; 5b, a first cavity; 5c, a cavity II; 5d, a gap; 5e, an annular shoulder; 6. a wafer; 6a, a through hole; 6b, a convex column; 6b1, locating holes; 7. a desiccant; 8. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the pressure regulating device of the air extracting tire pressure gun comprises a valve body 1, wherein an outlet 1b and an inlet 1a are respectively arranged at the upper side and the lower side of the valve body 1, a strip-shaped flow channel 2 used for communicating the inlet 1a and the outlet 1b is arranged inside the valve body 1, the flow channel 2 is in a horizontal penetrating shape, and a regulating mechanism used for regulating the air flow discharged into the outlet 1b through the flow channel 2 is arranged in the flow channel 2.

Particularly, adjustment mechanism is current structure, and it is including sealed 3 and the valve rod 4 that are frustum shape, and wherein, valve rod 4 and the coaxial setting of runner 2, the valve rod 4 inner links firmly with sealed 3 of filling up, and the runner 2 is stretched out to 4 outer ends of valve rod. The valve body 1 and the valve rod 4 are connected through threads, and sealing is achieved at the connection position through winding raw rubber belts. The flow channel 2 comprises a conical section matched with the sealing gasket 3, and the valve rod 4 is rotated to enable the sealing gasket 3 to extend into the conical section so as to change the flow area of the conical section and realize the air flow regulation.

As shown in fig. 1, 2 and 3, a circular tube 5 coaxial with the flow channel 2 is further disposed in the flow channel 2, the tapered section is located between the adjusting mechanism and the circular tube 5, and the circular tube 5 is connected with the valve body 1 through threads. The two ends of the round tube 5 are respectively an inner end and an outer end, and the inner end is positioned between the adjusting mechanism and the outer end. Wherein, 5 outer ends of the pipe extend out of the runner 2, and the outer end of the pipe 5 is sealed. The inner end of the round tube 5 is provided with a plurality of air outlet holes 5a which penetrate through the round tube 5 along the axial direction. The round plate 6 is detachably fixed in the round pipe 5, the round plate 6 divides the inner cavity of the round pipe 5 into a first cavity 5b and a second cavity 5c which are distributed along the axial direction of the round pipe 5, and the first cavity 5b is positioned between the second cavity 5c and the adjusting mechanism. The wafer 6 is provided with a plurality of through holes 6a for leading the first cavity 5b and the second cavity 5c, the first cavity 5b is filled with granular desiccant 7, and the sizes of the air outlet 5a and the through holes 6a are smaller than the size of the desiccant 7 so as to limit the desiccant 7 to be separated from the first cavity 5 b. As shown in fig. 1, a notch 5d which is arc-shaped and coaxial with the circular tube 5 is formed on the side wall of the second cavity 5c, and the cross section of the notch 5d is at least half of a circle. In this embodiment, the cross section of the notch 5d is preferably half circular. The inlet 1a faces the notch 5d, and the wafer 6 can be moved to face the notch 5d by an external force. The outer wall of the round pipe 5 and the inner wall of the flow channel 2 are sealed through the sealing rings 8, the two sealing rings 8 are distributed along the axial direction of the round pipe 5, and the gap 5d is positioned between the two sealing rings 8.

Wherein the content of the first and second substances,

as shown in figure 2, the wafer 6 is installed in a way that the shape and the size of the wafer 6 are matched with those of the circular tube 5, and the wafer 6 is positioned in the circular tube 5 in a clamping way, so that the side wall of the wafer 6 is tightly contacted with the inner wall of the circular tube 5 to form a seal. Further, an annular convex shoulder 5e is integrally formed on the inner wall of the circular tube 5, the annular convex shoulder 5e is coaxial with the circular tube 5, and one end, close to the adjusting mechanism, of the wafer 6 is pressed against the annular convex shoulder 5e and used for supporting and limiting the wafer 6, so that the assembly is convenient, the positioning of the wafer 6 is enhanced, and the working stability is improved. The end face of one end of the wafer 6, which is far away from the annular shoulder 5e, is provided with a convex column 6b, the convex column 6b is coaxially arranged with the wafer 6, the convex column 6b is provided with a positioning hole 6b1 which radially penetrates through the convex column 6b, and the positioning hole 6b1 is arranged opposite to the notch 5 d. In use, the locating hole 6b1 cooperates with the tool to drive the movement of the disc 6 to facilitate desiccant 7 replacement.

The seal ring 8 is mounted as follows: two ring channels are formed in the outer side wall of the circular tube 5, the ring channels and the circular tube 5 are coaxially arranged, the two sealing rings 8 are respectively arranged in the two ring channels, and the outer side wall of each sealing ring 8 is abutted to the inner wall of the flow channel 2 to form sealing.

The using process is as follows: the gas enters from the inlet 1a, flows into the flow channel 2 through the notch 5d, the cavity two 5c, the through hole 6a, the cavity one 5b and the gas outlet 5a in sequence, and then flows into the outlet 1b through flow regulation of the regulating mechanism. The desiccant 7 is used for absorbing moisture contained in the gas to accelerate the pressure increase.

Example two

The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: disk 6 can dismantle with pipe 5 through the screw and link to each other, and disk 6 one end integrated into one piece far away from adjustment mechanism has the column spinner, and column spinner and disk 6 are coaxial, and column spinner one end extends to breach 5d department.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A pressure regulating device of an air-extracting tire pressure gun comprises a valve body (1) with an outlet (1b) and an inlet (1a) respectively arranged at the upper side and the lower side, a strip-shaped flow channel (2) used for communicating the inlet (1a) and the outlet (1b) is arranged in the valve body (1), and a regulating mechanism used for regulating the air flow discharged into the outlet (1b) through the flow channel (2) is arranged in the flow channel (2), and is characterized in that a circular tube (5) coaxial with the flow channel (2) is also arranged in the flow channel (2), and the circular tube (5) is connected with the valve body (1) through threads; the outer end of the round pipe (5) extends out of the flow channel (2), the outer end of the round pipe (5) is in a sealed shape, and a plurality of air outlet holes (5a) which penetrate through the round pipe (5) in the axial direction are formed in the inner end of the round pipe (5); a wafer (6) is detachably fixed in the round tube (5), the inner cavity of the round tube (5) is divided into a first cavity (5b) and a second cavity (5c) which are axially distributed along the round tube (5) by the wafer (6), the first cavity (5b) is positioned between the second cavity (5c) and the adjusting mechanism, the wafer (6) is provided with a plurality of through holes (6a) for leading the first cavity (5b) and the second cavity (5c), the first cavity (5b) is filled with granular drying agent (7), the sizes of the air outlet hole (5a) and the through hole (6a) are smaller than that of the drying agent (7), a gap (5d) which is arc-shaped and coaxial with the circular tube (5) is arranged on the side wall of the cavity II (5c), the cross section of the notch (5d) is at least half of a circle, the inlet (1a) is opposite to the notch (5d), and the wafer (6) can be moved to be opposite to the notch (5d) through external force; the outer wall of the round pipe (5) and the inner wall of the flow channel (2) are sealed through the sealing rings (8), the two sealing rings (8) are axially distributed along the round pipe (5), and the notch (5d) is located between the two sealing rings (8).

2. Pressure regulating device for an air-extracting tire pressure gun according to claim 1, characterized in that the shape and size of the disc (6) are matched with those of the circular tube (5), and the disc (6) is positioned in the circular tube (5) by means of clamping.

3. Pressure regulating device for an evacuated tire pressure gun according to claim 2, characterized in that the inner wall of the circular tube (5) is integrally formed with an annular shoulder (5e), the annular shoulder (5e) is coaxial with the circular tube (5), and the end of the disc (6) close to the regulating mechanism is pressed against the annular shoulder (5 e).

4. The pressure regulating device for an air extracting tire pressure gun according to claim 3, wherein the end face of the disc (6) far away from the annular shoulder (5e) is provided with a convex column (6b), the convex column (6b) is coaxially arranged with the disc (6), the convex column (6b) is provided with a positioning hole (6b1) which radially penetrates through the convex column, and the positioning hole (6b1) is arranged opposite to the notch (5 d).

5. The pressure regulating device for the air-extracting tire pressure gun according to claim 1, wherein the disk (6) is detachably connected with the circular tube (5) through a thread, a rotating column is integrally formed at one end of the disk (6) far away from the regulating mechanism, the rotating column and the disk (6) are coaxial, and one end of the rotating column extends to the notch (5 d).

6. The pressure regulating device for the air extracting tire pressure gun according to claim 1, wherein two annular grooves are formed on the outer side wall of the circular tube (5), the two sealing rings (8) are respectively arranged in the two annular grooves, and the outer side wall of the sealing ring (8) is abutted against the inner wall of the flow passage (2) to form a seal.