Novel compressed gas input structure of shock absorber nitrogen tank

Abstract

The utility model relates to the technical field of nitrogen tank inflation equipment, in particular to a novel compressed gas input structure of a shock absorber nitrogen tank, which comprises a four-way joint, a pressure gauge connected with the four-way joint, a driving component and a gas nozzle joint, the pressure gauge is connected with the top of the four-way joint, and the gas nozzle joint and a cam deflector rod of the driving component are respectively connected with the left side and the right side of the four-way joint. The cam deflector rod is in contact connection with a sealing ejector rod in the four-way joint, the end, away from the cam deflector rod, of the sealing ejector rod is connected with an air tap center ejector rod, the air tap center ejector rod is sleeved with a sealing shaft sleeve, and a compression spring is arranged between the top of the sealing shaft sleeve and the top of the air tap center ejector rod. According to the compressed gas input structure of the novel shock absorber nitrogen tank, in the process of inflating the nitrogen tank and pulling out the nitrogen tank after the nitrogen tank is inflated, no nitrogen leaks, and it is guaranteed that the pressure in the nitrogen tank is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen tank inflation equipment technical field, especially a kind of compressed gas input structure of new shock absorber nitrogen tank. BACKGROUND

[0002] At present, the nitrogen tank inflation mode on automobile shock absorber is mostly American type inflation mode, and the joint is straight insertion type inflation mode. When the inflation is completed, a small amount of gas will leak from the tank when the inflation nozzle plug is pulled out, resulting in that the gas pressure in the nitrogen tank is less than the design pressure. Therefore, a new inflation structure is needed to ensure the stability of the gas pressure in the nitrogen tank. SUMMARY

[0003] The utility model discloses a kind of compressed gas input structure of new shock absorber nitrogen tank, in the process of nitrogen tank inflation and inflation completion pulling out, nitrogen will not leak, ensure that the pressure in the nitrogen tank is stable.

[0004] To achieve the above object, the utility model provides a kind of compressed gas input structure of new shock absorber nitrogen tank, including four-way and the pressure gauge connected with it, drive assembly and inflation nozzle joint, the pressure gauge is connected with the top of four-way, the cam lever of inflation nozzle joint and drive assembly is respectively connected with the left and right sides of four-way, the cam lever is contacted with the sealing top rod in four-way, the sealing top rod is connected with the center top rod of inflation nozzle at the end away from the cam lever, the center top rod of inflation nozzle is equipped with sealing bushing, and pressure spring is arranged between the top of sealing bushing and the top of center top rod of inflation nozzle.

[0005] Preferably, the sliding groove in the front end of inflation nozzle joint is slidably connected with a fixed plate, the fixed plate is provided with a rotating groove outside the inflation nozzle joint, the rotating groove is hingedly connected with the top end of fixed clamp, the fixed clamp is hingedly connected with the top end of inflation nozzle joint in the center, and the top end of inflation nozzle joint is provided with a torsional spring at the hinged position.

[0006] Preferably, the four-way is provided with a U-shaped groove at the cam lever, and the cam lever is hingedly connected with the side wall of the U-shaped groove through a pin shaft.

[0007] Preferably, the end of sealing top rod close to the cam lever is provided with a first sealing ring groove, and the first sealing ring groove is sleeved with a first sealing ring.

[0008] Preferably, the cross section of the center top rod of inflation nozzle and the sealing bushing is T-shaped structure, the top end of sealing bushing is provided with a second sealing ring groove, the second sealing ring groove is sleeved with a second sealing ring, and the end of sealing bushing is sleeved with a third sealing ring.

[0009] The inner side of the threaded connection between the gas nozzle connector and the four-way pipe is in contact with the middle part of the sealing sleeve, the top end of the threaded connection between the gas nozzle connector 1 and the four-way pipe 3 is in contact with the top end of the sealing sleeve, the end of the sealing sleeve away from the cam lever is located in the channel of the gas nozzle connector, and the fixed plate part is located in the channel.

[0010] Preferably, the bottom of the four-way pipe is communicated with the compressed gas source through the switch valve.

[0011] Therefore, the compression gas input structure of the nitrogen tank of the novel shock absorber adopts the above structure, nitrogen leakage is avoided during the processes of nitrogen tank inflation and inflation completion and pulling out, and the pressure stability in the nitrogen tank is ensured.

[0012] The technical scheme of the utility model will be further described below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the front view cross section of the input structure of the utility model in the compressed gas closed state;

[0014] Figure 2 is the front view cross section of the input structure of the utility model in the compressed gas inflation state.

[0015] Reference signs:

[0016] 1, gas nozzle connector; 11, fixed plate; 12, rotating groove; 13, fixed clamp; 2, pressure gauge; 3, four-way pipe; 31, U-shaped groove; 32, pin shaft; 4, driving assembly; 41, cam lever; 42, gas nozzle center top rod; 43, sealing sleeve; 44, first sealing ring; 45, second sealing ring; 46, third sealing ring; 47, compression spring; 48, sealing top rod. DETAILED DESCRIPTION

[0017] The utility model will be further described below with reference to the drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meanings by those skilled in the art to which the utility model belongs. The features mentioned above or the features mentioned in the specific examples can be combined arbitrarily, and these specific examples are only used to illustrate the utility model and not used to limit the scope of the utility model.

[0018] EMBODIMENT

[0019] The utility model provides a kind of compressed gas input structure of novel shock absorber nitrogen tank, including four-way 3 and the pressure gauge 2, drive assembly 4 and gas nozzle connector 1 connected with it.The pressure gauge 2 is connected with the top of four-way 3, and the cam lever 41 of gas nozzle connector 1 and drive assembly 4 is respectively connected with the left and right sides of four-way 3.Cam lever 41 is contacted and connected with the sealed top rod 48 inside four-way 3, and the one end of sealed top rod 48 away from cam lever 41 is connected with gas nozzle center top rod 42.Gas nozzle center top rod 42 is equipped with sealed shaft sleeve 43, and pressure spring 47 is equipped between the top of sealed shaft sleeve 43 and the top of gas nozzle center top rod 42.

[0020] Gas nozzle connector 1 is connected with the American gas nozzle of nitrogen tank, and pressure gauge 2 shows inflation pressure, so that user can inflate nitrogen tank in the required pressure range, and drive assembly 4 opens American gas nozzle to inflate nitrogen tank after reaching the required pressure range.The structure of the American gas nozzle of nitrogen tank is prior art, and the structure of the American gas nozzle is not described in detail in the embodiment.

[0021] As shown in Figure 2 The angle between cam lever 41 and sealed top rod 48 is 90 degrees by rotating cam lever 41, and at the same time, sealed top rod 48 moves to the direction close to gas nozzle connector 1 under the drive of cam lever 41.Sealed top rod 48 drives gas nozzle center top rod 42 to move when moving, and gas nozzle center top rod 42 moves and makes pressure spring 47 be compressed, and gas nozzle center top rod 42 moves to open the center telescopic cylinder of American gas nozzle, and compressed gas enters American gas nozzle.

[0022] As shown in Figure 1 The angle between cam lever 41 and sealed top rod 48 is 0 degrees by rotating cam lever 41, and at the same time, pressure spring 47 restores deformation to drive gas nozzle center top rod 42 to move to the direction close to cam lever 41, so that gas nozzle center top rod 42 leaves the center telescopic cylinder of American gas nozzle, American gas nozzle is closed, and nitrogen gas cannot leak from input structure, and the pressure value in nitrogen tank cannot change.Compressed gas is closed, and gas nozzle connector 1 is separated from American gas nozzle.

[0023] The sliding groove in the front end of gas nozzle connector 1 is slidably connected with fixed plate 11, and the rotating groove 12 is arranged outside gas nozzle connector 1.The top end of rotating groove 12 is hinged with fixed clamp 13, the center of fixed clamp 13 is hinged with the top end of gas nozzle connector 1, and torsional spring is arranged at the hinged place of fixed clamp 13 and the top end of gas nozzle connector 1.Rotating fixed clamp 13 can drive fixed plate 11 to move up and down along sliding groove through rotating groove 12, and fixed plate 11 fixes American gas nozzle, so that gas nozzle connector 1 is connected with American gas nozzle.Fixed clamp 13 penetrates rotating groove 12 and is partially located outside rotating groove 12, to avoid that fixed clamp 13 leaves rotating groove 12 in the process of rotating.

[0024] The four-way 3 is provided with a U-shaped groove 31 at the cam lever 41, and the cam lever 41 is hinged to the side wall of the U-shaped groove 31 through a pin shaft 32. The U-shaped groove 31 and the pin shaft 32 are arranged to facilitate the smooth rotation of the cam lever 41 relative to the four-way 3, thereby opening or closing the American air nozzle.

[0025] The sealing top rod 48 is provided with a first sealing ring groove near one end of the cam lever 41, and a first sealing ring 44 is sleeved in the first sealing ring groove. The arrangement of the first sealing ring 44 avoids the overflow of nitrogen during the inflation process, thereby preventing the waste of nitrogen.

[0026] The cross sections of the air nozzle center top rod 42 and the sealing sleeve 43 are both T-shaped structures. The sealing sleeve 43 is provided with a second sealing ring groove at the top end, and a second sealing ring 45 is sleeved in the second sealing ring groove. The sealing sleeve 43 is sleeved with a third sealing ring 46 at the end. The arrangement of the second sealing ring 45 and the third sealing ring 46 avoids the overflow of nitrogen between the outer wall of the sealing sleeve 43 and the channel during the inflation process, thereby preventing the waste of nitrogen.

[0027] After the threaded part of the air nozzle connector 1 is coated with thread glue or wrapped with raw material tape, the air nozzle connector 1 is threadedly connected with the four-way 3. The inner side of the threaded connection part of the air nozzle connector 1 and the four-way 3 is in contact with the middle part of the sealing sleeve 43, and the top end of the threaded connection part of the air nozzle connector 1 is in contact and connection with the top end of the sealing sleeve 43, thereby fixing the sealing sleeve 43 between the air nozzle connector 1 and the compression spring 47. The end of the sealing sleeve 43 away from the cam lever 41 is located in the channel of the air nozzle connector 1, and part of the fixing plate 11 is located in the channel, thereby facilitating the fixing of the American air nozzle by the fixing plate 11.

[0028] The bottom of the four-way 3 is communicated with the compressed gas source through a switch valve. After the compressed gas source enters the four-way 3, the nitrogen enters the American air nozzle through the gap between the air nozzle center top rod 42 and the channel, and the gap between the air nozzle center top rod 42 and the sealing sleeve 43. The arrangement of the switch valve is used to control the opening and closing of the compressed gas source.

[0029] Therefore, the compression gas input structure of the nitrogen tank of the new shock absorber adopts the above structure. During the inflation and inflation completion pulling-out processes of the nitrogen tank, no nitrogen is leaked, and the stability of the pressure in the nitrogen tank is ensured.

[0030] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can still be modified or replaced equivalently, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A compressed gas input structure of a new shock absorber nitrogen tank, characterized by: The utility model discloses a four-way valve, a pressure gauge connected with the four-way valve, a driving assembly and a gas nozzle joint, the pressure gauge is connected with the top of the four-way valve, the cam lever of the driving assembly and the gas nozzle joint are connected with the left and right sides of the four-way valve respectively, the cam lever is connected with the sealing top rod in the four-way valve, one end of the sealing top rod away from the cam lever is connected with the central top rod of the gas nozzle, the central top rod of the gas nozzle is equipped with a sealing shaft sleeve, and a compression spring is arranged between the top of the sealing shaft sleeve and the top of the central top rod of the gas nozzle.

2. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 1, characterized in that: The sliding groove in the front end of the gas nozzle joint is slidably connected with a fixed plate, the fixed plate is provided with a rotating groove outside the gas nozzle joint, the rotating groove is hingedly connected with the top end of a fixed clamp, the central part of the fixed clamp is hingedly connected with the top end of the gas nozzle joint, and the hinged part of the fixed clamp and the top end of the gas nozzle joint is provided with a torsional spring.

3. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 1, characterized in that: The four-way valve is provided with a U-shaped groove at the cam lever, and the cam lever is hingedly connected with the side wall of the U-shaped groove through a pin shaft.

4. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 1, characterized in that: The first sealing ring groove is arranged in the end of the sealing top rod close to the cam lever.

5. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 1, characterized in that: The cross sections of the central top rod of the gas nozzle and the sealing shaft sleeve are both T-shaped structures, the top end of the sealing shaft sleeve is provided with a second sealing ring groove, the second sealing ring groove is sleeved with a second sealing ring, and the tail end of the sealing shaft sleeve is sleeved with a third sealing ring.

6. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 2, characterized in that: The inner side of the threaded connection part of the gas nozzle joint and the four-way valve is in contact with the middle part of the sealing shaft sleeve, the top end of the threaded connection part of the gas nozzle joint and the four-way valve is in contact with the top end of the sealing shaft sleeve, the end of the sealing shaft sleeve away from the cam lever is located in the channel of the gas nozzle joint, and the fixed plate is partially located in the channel.

7. The compressed gas input structure of a new shock absorber nitrogen tank according to claim 1, characterized in that: The bottom of the four-way valve is communicated with the compressed air source through a switch valve.

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