CN214118827U

CN214118827U - Pressure adjustable air spring

Info

Publication number: CN214118827U
Application number: CN202022948888.5U
Authority: CN
Inventors: 孙肃松
Original assignee: Taizhou Chengxin Pneumatic Equipment Co ltd
Current assignee: Taizhou Chengxin Pneumatic Equipment Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-03
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses an adjustable air spring of pressure, concretely relates to air spring field, the hydraulic cylinder comprises a cylinder, the right-hand member fixedly connected with sealing washer of cylinder inner wall, cylinder inner wall sliding connection has the piston, the piston left side is the air cavity, the right side fixed surface of piston is connected with the piston rod, the piston rod surface slides and has cup jointed the extension cock stem, the right side surface and the fixedly connected with ball cover of cylinder are worn to locate to the one end that the piston was kept away from to the extension cock stem, the ball cover is kept away from the one end surface rotation that extends the cock stem and is connected with universal ball, the one end fixed surface that the ball cover was kept away from to universal ball is connected with mounting bolt, mounting bolt surface screw has cup jointed mounting nut. The utility model discloses a rotation governing valve drives the pressure adjustment stopper and rotates, transfers the pressure in the gas chamber, realizes the pressure adjustment to the air spring, through the inside extension subassembly that sets up of piston rod, realizes the extension to extending the cock stem, promotes the practicality.

Description

Pressure adjustable air spring

Technical Field

The utility model relates to an air spring technical field, more specifically say, the utility model relates to an adjustable air spring of pressure.

Background

The air spring is an industrial accessory which can play a role in supporting, buffering, braking, height adjustment, angle adjustment and the like, is a labor-saving lifting spring, can be divided into a self-locking air spring (such as lifting at the bottom of a seat, lifting at the back of a boss chair and the like) and a non-self-locking air spring (such as lifting support of a car trunk and a closet door) and mainly comprises a sleeve, a piston rod and the like, high-pressure air or high-pressure nitrogen is added into the sleeve, and because the areas of two ends of the piston are unequal, pressure difference is generated, the piston and the piston rod are pushed to move, and people or heavy objects are supported.

However, the existing gas spring has the following disadvantages: firstly, the stroke is short, and the applicable stroke range is between one time and two times of the self length; secondly, the stroke is fixed, and length can't be adjusted, to different occasions, needs the air spring of different length specifications, and the practicality is not high, consequently designs a pressure adjustable air spring.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a pressure adjustable gas spring to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an adjustable air spring of pressure, includes the cylinder, the right-hand member fixedly connected with sealing washer of cylinder inner wall, cylinder inner wall sliding connection has the piston, the piston left side is the air cavity, the right side fixed surface of piston is connected with the piston rod, the piston rod surface slides and has cup jointed the extension cock stem, the right side surface and the fixedly connected with ball cover of locating the cylinder are worn to extend the one end that the piston was kept away from to the cock stem.

Furthermore, the surface of one end, away from the extension cock stem, of the ball sleeve is rotatably connected with a universal ball, the surface of one end, away from the ball sleeve, of the universal ball is fixedly connected with a mounting bolt, and a mounting nut is sleeved on the surface of the mounting bolt in a threaded manner.

Further, the piston rod is kept away from the one end surface of piston and is equipped with the extension subassembly, the extension subassembly includes servo motor, servo motor fixes the right part at the piston rod inner wall, servo motor's output shaft passes through shaft coupling fixedly connected with pivot, servo motor's one end fixedly connected with helical gear is kept away from in the pivot, helical gear surface mesh is connected with No. two helical gears.

Further, piston rod right side fixed surface is connected with two backup pads, two backup pad fixed surface is connected with a bearing and No. two bearings, the equal fixedly connected with dwang of inner circle of a bearing and No. two bearings, No. two the fixed surface that cup joints at the dwang of helical gear.

Further, a gear and No. two gears of both ends fixedly connected with of dwang, extend No. one rack of inner wall fixedly connected with and No. two racks of cock stem, a gear and No. two gears are connected with a rack and No. two rack surface meshing.

Furthermore, the left side fixed surface of cylinder is connected with No. two sealing washers, the left part surface of cylinder inner wall is equipped with the screw thread, the inside threaded connection in cylinder left side has the pressure adjustment stopper, the one end fixed surface that the screw thread was kept away from to the pressure adjustment stopper is connected with the governing valve, No. two sealing washers are worn to locate by the governing valve, the governing valve surface is equipped with the mounting hole.

Further, the bottom fixedly connected with gas cell of cylinder, the top of gas cell is equipped with the air channel, the air channel wears to locate the cylinder, the last fixed surface of cylinder is connected with the connecting rod, the one end fixedly connected with pressure observation table that the cylinder was kept away from to the connecting rod.

The utility model discloses a technological effect and advantage:

1. through the connecting rod and the pressure observation table that the cylinder upper surface set up, realized the monitoring to cylinder internal pressure, drive the pressure adjusting plug through rotating the governing valve and realize adjusting the inside pressure of cylinder to realized adjusting the pressure of air spring, can install with other parts through the mounting hole that sets up.

2. Through the extension cock stem and the extension subassembly that set up, realized the extension to the piston rod, realized in the occasion of difference, all can use, adjust the practicality of air spring according to the required length of occasion to extending the cock stem.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the extension assembly of the present invention.

The reference signs are: 1. a cylinder barrel; 2. a first sealing ring; 3. a piston; 4. an air cavity; 5. a piston rod; 6. An extension plug rod; 7. a ball sleeve; 8. a universal ball; 9. installing a bolt; 10. mounting a nut; 11. an extension assembly; 110. a servo motor; 111. a rotating shaft; 112. a first bevel gear; 113. a second bevel gear; 114. a support plate; 115. a first bearing; 116. a second bearing; 117. rotating the rod; 118. a first gear; 119. a second gear; 1110. a first rack; 1111. a second rack; 12. a second sealing ring; 13. a thread; 14. A pressure regulating plug; 15. adjusting a valve; 16. mounting holes; 17. an air-filled bag; 18. a vent channel; 19. a connecting rod; 20. and (4) observing the pressure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The pressure-adjustable air spring shown in the attached drawings 1-3 comprises a cylinder barrel 1, a first sealing ring 2 is fixedly connected to the right end of the inner wall of the cylinder barrel 1, a piston 3 is slidably connected to the inner wall of the cylinder barrel 1, an air cavity 4 is formed in the left side of the piston 3, a piston rod 5 is fixedly connected to the right side surface of the piston 3, an extension plug rod 6 is sleeved on the outer surface of the piston rod 5 in a sliding mode, and one end, away from the piston 3, of the extension plug rod 6 penetrates through the right side surface of the cylinder barrel 1 and is fixedly connected with a ball sleeve 7.

In a preferred embodiment, a universal ball 8 is rotatably connected to one end surface of the ball sleeve 7 far away from the extension plug rod 6, a mounting bolt 9 is fixedly connected to one end surface of the universal ball 8 far away from the ball sleeve 7, and a mounting nut 10 is threadedly sleeved on the surface of the mounting bolt 9, so that the mounting can be carried out in any rotation direction and other parts through the rotation of the universal ball 8.

In a preferred embodiment, an extension assembly 11 is disposed on an end surface of the piston rod 5 away from the piston 3, the extension assembly 11 includes a servo motor 110, the servo motor 110 is fixed on a right portion of an inner wall of the piston rod 5, an output shaft of the servo motor 110 is fixedly connected with a rotating shaft 111 through a coupling, one end of the rotating shaft 111 away from the servo motor 110 is fixedly connected with a first helical gear 112, and a surface of the first helical gear 112 is in meshing connection with a second helical gear 113, so that the first helical gear 112 and the second helical gear 113 are driven to rotate by the servo motor 110.

In a preferred embodiment, two supporting plates 114 are fixedly connected to the right side surface of the piston rod 5, a first bearing 115 and a second bearing 116 are fixedly connected to the surfaces of the two supporting plates 114, rotating rods 117 are fixedly connected to the inner rings of the first bearing 115 and the second bearing 116, and the second bevel gear 113 is fixedly sleeved on the surface of the rotating rod 117, so that the rotating rod 117 is driven to rotate by the rotation of the second bevel gear 113.

In a preferred embodiment, a first gear 118 and a second gear 119 are fixedly connected to both ends of the rotating rod 117, a first rack 1110 and a second rack 1111 are fixedly connected to the inner wall of the extension stopper 6, and the first gear 118 and the second gear 119 are in surface engagement with the first rack 1110 and the second rack 1111, so that the rotation of the rotating rod 117 drives the rotation of the first gear 118 and the second gear 119, thereby achieving the extension of the extension stopper.

In a preferred embodiment, the left side surface of the cylinder barrel 1 is fixedly connected with a second sealing ring 12, the left part surface of the inner wall of the cylinder barrel 1 is provided with threads 13, the inner threads on the left side of the cylinder barrel 1 are connected with a pressure adjusting plug 14, one end surface of the pressure adjusting plug 14, which is far away from the threads 13, is fixedly connected with an adjusting valve 15, the adjusting valve 15 is arranged in the second sealing ring 12 in a penetrating manner, and the surface of the adjusting valve 15 is provided with a mounting hole 16, so that the adjusting valve 15 is rotated to drive the pressure adjusting valve 14 to rotate, and pressure adjustment of the gas spring is realized.

In a preferred embodiment, the bottom of the cylinder barrel 1 is fixedly connected with an inflation bag 17, the top of the inflation bag 17 is provided with a vent groove 18, the vent groove 18 is arranged in the cylinder barrel 1 in a penetrating manner, the upper surface of the cylinder barrel 1 is fixedly connected with a connecting rod 19, and one end, far away from the cylinder barrel 1, of the connecting rod 19 is fixedly connected with a pressure observation meter 20, so that air can be flushed through the vent groove 18, and pressure observation of the air spring can be realized through the pressure observation meter 20.

The utility model discloses the theory of operation: during the use, drive pivot 111 through servo motor 110 and rotate, pivot 111 drives a helical gear 112 and rotates, and a helical gear 112 drives No. two helical gear 113 rotations to drive dwang 117 and rotate, the rotation of dwang 117 drives a gear 118 and No. two gears 119 and rotates, thereby has realized the automatic extension length of extension cock stem 6.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure adjustable gas spring, includes cylinder (1), its characterized in that: the right-hand member fixedly connected with sealing washer (2) of cylinder (1) inner wall, cylinder (1) inner wall sliding connection has piston (3), piston (3) left side is air cavity (4), the right side fixed surface of piston (3) is connected with piston rod (5), piston rod (5) surface sliding cup joints and extends cock stem (6), extend cock stem (6) and keep away from the one end of piston (3) and wear to locate right side surface and the fixedly connected with ball cover (7) of cylinder (1).

2. A pressure tunable gas spring as claimed in claim 1, wherein: the ball cover (7) is kept away from the one end surface rotation that extends cock stem (6) and is connected with universal ball (8), the one end fixed surface that ball cover (7) were kept away from in universal ball (8) is connected with construction bolt (9), construction nut (10) have been cup jointed to construction bolt (9) surface screw thread.

3. A pressure tunable gas spring as claimed in claim 2, wherein: piston rod (5) keep away from the one end surface of piston (3) and be equipped with extension subassembly (11), extension subassembly (11) are including servo motor (110), servo motor (110) are fixed in the right part of piston rod (5) inner wall, the output shaft of servo motor (110) passes through shaft coupling fixedly connected with pivot (111), No. one helical gear (112) of one end fixedly connected with of servo motor (110) are kept away from in pivot (111), helical gear (112) surface mesh is connected with No. two helical gears (113).

4. A pressure tunable gas spring as claimed in claim 3, wherein: piston rod (5) right side fixed surface is connected with two backup pads (114), two backup pad (114) fixed surface is connected with bearing (115) and No. two bearing (116), the equal fixedly connected with dwang (117) of inner circle of bearing (115) and No. two bearing (116), No. two helical gear (113) are fixed to be cup jointed on the surface of dwang (117).

5. A pressure tunable gas spring as claimed in claim 4, wherein: the both ends fixedly connected with of dwang (117) gear (118) and No. two gear (119), the inner wall fixedly connected with of extension cock stem (6) rack (1110) and No. two racks (1111), gear (118) and No. two gear (119) and rack (1110) and No. two rack (1111) surface mesh are connected.

6. A pressure tunable gas spring as claimed in claim 5, wherein: the utility model discloses a hydraulic cylinder, including cylinder (1), left side fixed surface of cylinder (1) is connected with No. two sealing washer (12), the left part surface of cylinder (1) inner wall is equipped with screw thread (13), cylinder (1) left side internal thread is connected with pressure regulation stopper (14), the one end fixed surface that screw thread (13) were kept away from in pressure regulation stopper (14) is connected with governing valve (15), No. two sealing washer (12) are worn to locate in governing valve (15), governing valve (15) surface is equipped with mounting hole (16).

7. A pressure tunable gas spring as claimed in claim 6, wherein: the bottom fixedly connected with gas cell (17) of cylinder (1), the top of gas cell (17) is equipped with air channel (18), air channel (18) wear to locate cylinder (1), the last fixed surface of cylinder (1) is connected with connecting rod (19), one end fixedly connected with pressure observation table (20) of cylinder (1) are kept away from in connecting rod (19).