CN215214510U

CN215214510U - Pressure-adjustable gas spring

Info

Publication number: CN215214510U
Application number: CN202121581218.2U
Authority: CN
Inventors: 蒋卿; 张建南; 庄仲武; 张瑜; 张志刚
Original assignee: Changzhou Fuxin Auto Parts Co ltd
Current assignee: Changzhou Fuxin Auto Parts Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-17
Anticipated expiration: 2031-07-12

Abstract

The utility model provides an air spring with adjustable pressure, including cylinder body, piston rod, install the pressure adjustment piece on one side of the piston rod and the connecting seat that is located cylinder body one side, the pressure adjustment piece is located the cylinder body, and the piston movable mounting that is located pressure adjustment piece one side has the regulation pole in the cylinder body, movable mounting has the regulation pole in the piston rod, adjusts the pole and passes the piston rod and extend to in the pressure adjustment piece, is equipped with first vent channel and second vent channel on the pressure adjustment piece, and the pin is still installed to regulation pole one side that is located the cylinder body, piston rod opposite side fixed mounting has the go-between, is equipped with the operation chamber in the go-between, the utility model discloses simple structure adjusts the convenience.

Description

Pressure-adjustable gas spring

Technical Field

The utility model belongs to the technical field of the air spring, concretely relates to air spring with adjustable pressure.

Background

The air spring is an industrial accessory that can play functions such as support, buffering, braking, altitude mixture control and angle modulation, and the structure of air spring mainly comprises sleeve, piston and piston rod etc. the theory of operation of spring: the closed pressure cylinder is filled with high-pressure air or high-pressure nitrogen or oil-gas mixture, so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, the motion of the piston rod is realized by utilizing the pressure difference generated by the cross section area of the piston rod being smaller than that of the piston, and the piston rod has the advantages of relatively slow speed, small dynamic force change, easy control and the like.

The existing gas spring has the problems that a piston rod cannot work normally due to the pressure problem during use, and the like, so that a pressure adjusting structure needs to be added into the gas spring to ensure the normal use of the gas spring.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art, the utility model provides an air spring with adjustable pressure.

The utility model provides a following technical scheme:

the utility model provides an air spring with adjustable pressure, includes cylinder body, piston rod, installs the pressure adjustment piece on one side of the piston rod and the connecting seat that is located cylinder body one side, the pressure adjustment piece is located the cylinder body, and the piston movable mounting that is located pressure adjustment piece one side has the regulation pole in the cylinder body, movable mounting has the regulation pole in the piston rod, and the regulation pole passes the piston rod and extends to in the pressure adjustment piece, is equipped with first channel and the second channel of ventilating on the pressure adjustment piece, and the pin is still installed to regulation pole one side in being located the cylinder body, piston rod opposite side fixed mounting has the go-between, is equipped with the operation chamber in the go-between.

Further, still be equipped with the venthole on the cylinder body, install the sealing plug in the venthole, be equipped with first through-hole and second through-hole in the sealing plug, first through-hole is located directly over the second through-hole, just the aperture of first through-hole is less than the aperture of second through-hole, and the vertical end movable mounting of T shaped plate is in first through-hole and second through-hole.

Further, the bottom end of the T-shaped plate is provided with a blocking block, and the diameter of the blocking block is equal to the aperture of the second through hole.

Furthermore, one side of the piston is divided into a first adjusting cavity and a second adjusting cavity by the pressure adjusting block, and the other side of the piston is a third adjusting cavity.

Furthermore, the first ventilation channel is communicated with the second ventilation channel, the stop lever is positioned in the second ventilation channel, and a sealing block is further arranged on one side of the stop lever.

Furthermore, a return spring is arranged between the sealing block and the pressure adjusting block.

Further, the diameter of the stop lever body is smaller than the diameter of the two ends of the stop lever.

The utility model has the advantages that:

1. the interior of the cylinder body is divided into two parts through the piston, the pressure adjusting mechanism is added into the cylinder body to divide one side of the piston into a first adjusting cavity and a second adjusting cavity, and gas in the second adjusting cavity flows into the first adjusting cavity through the second vent groove and the first vent groove, so that the pressure in the cavity adjacent to the piston is adjusted, and the pressure adjustment of the gas spring is completed.

2. The sealing plug is arranged on the cylinder body, and the gas in the cylinder body can be properly discharged out of the cylinder body through the sealing plug and the T-shaped plate to adjust the pressure.

3. The connecting ring arranged on one side of the piston is convenient for adjusting pressure and simultaneously plays a role in protecting the adjusting rod, so that the adjusting rod is prevented from being touched by mistake.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the portion a of fig. 1 according to the present invention.

Labeled as: 100. a cylinder body; 101. a connecting ring; 102. an operating chamber; 103. a connecting seat; 104. a first adjusting cavity; 105. a second adjusting cavity; 106. a piston; 107. a third adjusting cavity;

200. a pressure regulating block; 201. adjusting a rod; 202. a piston rod; 203. a first vent channel; 204. a second vent channel; 205. a return spring; 206. a sealing block; 207. a stop lever;

300. a sealing plug; 301. a first through hole; 302. a T-shaped plate; 303. an air outlet; 304. blocking; 305. a second via.

Detailed Description

As shown in fig. 1-3, a pressure adjustable gas spring includes a cylinder body 100, a piston rod 202, a pressure adjusting block 200 installed at one side of the piston rod 202, and a connecting seat 103 located at one side of the cylinder body 100, the pressure adjusting block 200 is located in the cylinder body 100, a piston 106 located at one side of the pressure adjusting block 200 is movably installed in the cylinder body 100, an adjusting rod 201 is movably installed in the piston rod 202, the adjusting rod 201 penetrates through the piston rod 202 and extends into the pressure adjusting block 200, the pressure adjusting block 200 divides one side of the piston 106 into a first adjusting cavity 104 and a second adjusting cavity 105, and a third adjusting cavity 107 is located at the other side of the piston 106.

The pressure adjusting block 200 is provided with a first ventilation channel 203 and a second ventilation channel 204, the first ventilation channel 203 is communicated with the second ventilation channel 204, one side of the adjusting rod 201 in the cylinder body 100 is also provided with a stop lever 207, the stop lever 207 is positioned in the second ventilation channel 204, one side of the stop lever 207 is also provided with a sealing block 206, a reset spring 205 is arranged between the sealing block 206 and the pressure adjusting block 200, the diameter of the stop lever 207 is smaller than the diameter of two ends of the stop lever 207, the other side of the piston rod 202 is fixedly provided with a connecting ring 101, and the connecting ring 101 is internally provided with an operation cavity 102.

Still be equipped with venthole 303 on the cylinder body 100, install sealing plug 300 in the venthole 303, be equipped with first through-hole 301 and second through-hole 305 in the sealing plug 300, first through-hole 301 is located second through-hole 305 directly over, and the aperture of first through-hole 301 is less than the aperture of second through-hole 305, the vertical end movable mounting of T shaped plate 302 is in first through-hole 301 and second through-hole 305, sprue 304 is still installed to T shaped plate 302 bottom, sprue 304 diameter equals the aperture of second through-hole 305.

The gas spring is provided with two pressure adjusting modes, wherein one pressure adjusting mode is internal gas adjusting, and the other pressure adjusting mode is gas external discharging.

Example one

As shown in FIG. 1, the piston 106 is movably installed in the cylinder 100, the piston 106 moves in the cylinder 100 through the pressure difference between the first adjusting cavity 105 and the third adjusting cavity 107, when the piston 106 moves, the pressure adjusting block 200 moves along with the movement of the piston 106 due to the fact that the pressures in the first adjusting cavity 104 and the second adjusting cavity 105 are equal, the piston rod 202 installed on the pressure adjusting block 200 moves along with the movement, the gas spring is installed on the equipment through the connecting ring 101 and the connecting seat 103, the stop rod 207 and the sealing block 206 block the second vent channel 204 in the normal state of the adjusting rod 201, the pressures in the first adjusting cavity 104 and the second adjusting cavity 105 are equal, and the tail end of the adjusting rod 201 is located in the operating cavity 102 to prevent mistaken collision with the adjusting rod 201.

If the piston rod 202 cannot work normally, the adjusting rod 201 is pressed towards the inner side of the cylinder body 100, the second air channel 204 is opened, air pressure in the second adjusting cavity 105 flows into the first adjusting cavity 104 through the second air channel 204 and the first air channel 203, the adjusting rod 201 is loosened, the second air channel 204 is blocked due to the fact that the adjusting rod 201 returns to the original position through the elastic force of the return spring 205, the adjusting rod is loosened after the second air channel is pressed repeatedly for 2-3 times, the pressure in the second adjusting cavity 105 is smaller than the pressure in the third adjusting cavity 107, the piston 106 recovers, the piston 106 is pushed towards the side of the piston rod 202 by the pressure in the third adjusting cavity 107, and the piston rod 202 recovers to work.

Example two

As shown in fig. 2 to 3, a sealing plug 300 is mounted on the cylinder 100, a T-shaped plate 302 is located in the sealing plug 300, when the T-shaped plate 302 is pressed downward, a block 304 is separated from a second through hole 305, at this time, gas in the cylinder 100 flows through a first through hole 301 through a gap between the block 304 and the second through hole 305, the T-shaped plate 302 is pulled upward, the block 304 is located in the second through hole 305, the gas in the cylinder 100 is sealed, at the same time, the gas in the first through hole 301 flows out from a gap between the T-shaped plate 302 and the sealing plug 300, pressure on both sides of a piston 106 in the cylinder 100 is adjusted, and when the T-shaped plate 302 is not used, the T-shaped plate 302 can be fixed on the sealing plug 300 by using a bolt or the like.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure adjustable gas spring comprises a cylinder body (100), a piston rod (202), a pressure adjusting block (200) arranged at one side of the piston rod (202) and a connecting seat (103) positioned at one side of the cylinder body (100), it is characterized in that the pressure adjusting block (200) is positioned in the cylinder body (100), the piston (106) positioned at one side of the pressure adjusting block (200) is movably arranged in the cylinder body (100), an adjusting rod (201) is movably arranged in the piston rod (202), the adjusting rod (201) penetrates through the piston rod (202) and extends into the pressure adjusting block (200), a first ventilation channel (203) and a second ventilation channel (204) are arranged on the pressure adjusting block (200), a stop lever (207) is further arranged on one side of the adjusting rod (201) positioned in the cylinder body (100), the other side of the piston rod (202) is fixedly provided with a connecting ring (101), and an operation cavity (102) is arranged in the connecting ring (101).

2. The pressure-adjustable gas spring as claimed in claim 1, wherein the cylinder body (100) is further provided with an air outlet (303), a sealing plug (300) is installed in the air outlet (303), a first through hole (301) and a second through hole (305) are formed in the sealing plug (300), the first through hole (301) is located right above the second through hole (305), the aperture of the first through hole (301) is smaller than that of the second through hole (305), and the vertical end of the T-shaped plate (302) is movably installed in the first through hole (301) and the second through hole (305).

3. A pressure adjustable gas spring as claimed in claim 2, characterized in that the bottom end of the T-shaped plate (302) is further mounted with a block (304), the block (304) having a diameter equal to the bore diameter of the second through hole (305).

4. The pressure adjustable gas spring as set forth in claim 1, wherein said pressure adjustment block (200) divides one side of a piston (106) into an adjustment chamber one (104) and an adjustment chamber two (105), and an adjustment chamber three (107) is on the other side of said piston (106).

5. The pressure adjustable gas spring as set forth in claim 1, wherein said first vent channel (203) and said second vent channel (204) communicate, said stop rod (207) is located in said second vent channel (204), and a sealing block (206) is further provided on one side of said stop rod (207).

6. A pressure adjustable gas spring as claimed in claim 5, characterized in that a return spring (205) is mounted between the sealing block (206) and the pressure adjustment block (200).

7. The pressure adjustable gas spring as set forth in claim 5, wherein said stop (207) has a shank diameter that is smaller than a diameter of both ends of the stop (207).