CN206280426U - Rigid locking air pressure rod - Google Patents
Rigid locking air pressure rod Download PDFInfo
- Publication number
- CN206280426U CN206280426U CN201621144284.2U CN201621144284U CN206280426U CN 206280426 U CN206280426 U CN 206280426U CN 201621144284 U CN201621144284 U CN 201621144284U CN 206280426 U CN206280426 U CN 206280426U
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- outer tube
- inner tube
- piston
- hole
- valve seat
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Abstract
The utility model discloses a kind of rigid locking air pressure rod,Inner tube is located in outer tube,One end of inner tube is fixed with one end of bearing,Piston is assemblied in one end of piston rod,The one end fits of piston rod assembling piston are in inner tube,The other end of piston rod is successively from bearing,Seal assembly,Exposed to the outside of outer tube after top cover is passed through afterwards,Floating piston coordinates between outer tube and inner tube,One end of valve seat is fixed and is sealed with the other end of inner tube,The other end of valve seat is sealed and is fixed in outer tube,Valve seat is provided with the oilhole of axial stepped hole and radial direction,One end of valve element is provided with the collar flange for sealed step hole aperture,The other end for being fixed on outer tube is blocked up afterwards,Stifled one end forms axial limiting to valve seat afterwards,The stifled other end is exposed to the outside of outer tube afterwards,After block and be provided with through hole,The other end of the valve element is from successively from the stepped hole of valve seat,The through hole for blocking afterwards is passed through.The utility model can make the piston rod can obtain rigid locking at an arbitrary position.
Description
Technical field
The utility model is related to a kind of air pressure rod, more particularly to a kind of rigid locking air pressure rod.
Background technology
Current lockable gas spring, air pressure rod are used widely in daily life, are especially applied in office furniture
It is more extensive, be the main composition part of up-down desk and chair.
Gas spring of the prior art, air pressure rod can not carry out rigid locking, have elasticity, power when dropping to low level during self-locking
Value is too big, and limitation is very big during operation, and adjusts cumbersome, lacks simplicity.Used in lockable gas spring in the prior art
Piston valve body and the switch a diameter of 4MM of needle, frictional force are relatively large, and the startup and screen resilience for causing switch increase, and piston
The assembling and fixation of bar and piston valve body are comparatively laborious；Other piston rod and piston valve body sealed end endoporus sealing surface difficult processing,
It is difficult to reach the precision of needs, piston rod is hollow stem, control valve and piston rod are moved simultaneously, are not fixed, switch is at piston rod end
End, has installed and used limitation, and because this structural manufacturing process causes what piston rod surface was heat-treated, endoporus sealing surface cannot be thrown
Light, sealing effectiveness is worse, causes the problems such as chronic leakage, oil leak.
The content of the invention
The purpose of this utility model is to provide the rigidity lock that a kind of piston rod can obtain rigid locking at an arbitrary position
Determine air pressure rod.
The technical solution of the utility model is as follows：
Rigid locking air pressure rod, including outer tube, inner tube, piston rod, piston, valve seat, valve element, rear stifled, floating piston, sealing
Component, rear top cover, the bearing with air-vent, bearing are located in outer tube and are fastened as a whole with outer tube, and inner tube is located in outer tube,
One end of inner tube is fixed with one end of bearing, and seal assembly is arranged in outer tube and positioned at the side of the bearing other end, it is described after
Top cover is fixed on one end of outer tube, and one end of rear top cover forms axial limiting to seal assembly, and the piston is assemblied in piston rod
One end, piston rod assembling piston one end fits inner tube is separated into interior oil cavity and interior air cavity, piston rod in inner tube
The other end passed through from bearing, seal assembly, rear top cover successively after coordinate outside exposed to the outside of outer tube, the floating piston
The cavity between outer tube and inner tube is divided into outer oil cavity body and outer air cavity between pipe and inner tube, one end of the valve seat with it is interior
The other end of pipe is fixed and sealed, and the other end of valve seat is sealed and is fixed in outer tube, valve seat be provided with axial stepped hole with
And the oilhole of radial direction, oilhole and stepped hole formation asphalt channel, one end of valve element is provided with the ring-type for sealed step hole aperture
Flange, blocks up the other end for being fixed on outer tube afterwards, and stifled one end forms axial limiting to valve seat afterwards, and the stifled other end exposes outside afterwards
The outside of pipe, after block and be provided with through hole, the other end of the valve element from stepped hole successively from valve seat, after the through hole that blocks wear
Cross.
The beneficial effects of the utility model are：This rigid locking air pressure rod is designed by the separating mechanism of gas, oil pocket, can
Make air pressure rod at an arbitrary position, direction realize that full rigidity is locked, and decline and to rise force value uniform, can easily push, both solved
Determine the elastic drawback of conventional gas rod, switch direction and piston rod and the piston valve body of lockable gas spring have been solved again
Unicity and limitation.Its simple piston rod and piston structure reduce the difficulty of processing and assembling, increased sealing effect
Really, the frictional force of switch is reduced, oil leak and gas leak phenomenon is also reduced, so that gas spring lifting is softer smooth, it is ensured that
The sealing effectiveness and lifting effect of long-term use, improve Consumer's Experience comfort level, reduce production and processing cost.
Brief description of the drawings
Fig. 1 is the cross-sectional view of rigid locking air pressure rod of the present utility model；
Fig. 2 is the schematic diagram that control member is increased on the basis of Fig. 1；
Fig. 3 is the schematic diagram of valve element in the utility model；
Fig. 4 is the schematic diagram of coupling assembly in the utility model；
Fig. 5 is the schematic diagram of the stifled connector of tail in the utility model；
Fig. 6 is the schematic diagram of tieback connection in the utility model；
Fig. 7 is the schematic diagram of manipulation component in the utility model；
Fig. 8 is the schematic diagram of activation lever in the utility model；
Fig. 9 is the schematic diagram of support base in the utility model；
Specific embodiment
As depicted in figs. 1 and 2, rigid locking air pressure rod of the present utility model, including outer tube 1, inner tube 2, piston rod 3, work
Plug 4, valve seat 5, valve element 6, afterwards block up 7, floating piston 8, seal assembly 9, rear top cover 10, the bearing 11 with air-vent, spacer 12,
Control member 13, below the relation to every part and between them illustrate：
As shown in Figure 1 to Figure 3, bearing 11 is located in outer tube 1 and is fastened as a whole with outer tube 1, and inner tube 2 is located in outer tube 1,
One end of inner tube 2 is fixed with one end of bearing 11, and the end that bearing 11 is connected with inner tube 2 is provided with lug boss 11a, the lug boss
11a is inserted into inner tube 2.There is provided after lug boss 11a, bearing 11 is in T shape, it is preferable that bearing 11 is matched somebody with somebody with the interference of outer tube 1
Conjunction, lug boss 11a and the interference fit of inner tube 2, so, tighten together one end of outer tube 1 and inner tube 2 by bearing 11.It is close
Sealing assembly 9 is arranged in outer tube 1 and has interval between the side of the other end of bearing 11, i.e. seal assembly 9 and bearing 11,
So, a ventilative cavity is surrounded by outer tube 1, seal assembly 9, bearing 11, due to being provided with air-vent on bearing 11, this is saturating
Air cavity forms a passage for compressed gas flow with air-vent and outer tube and inner chamber.Seal assembly 9 by support and
Sealing ring is constituted, and sealing ring is coated and is fixed on support.The rear top cover 10 is fixed on one end of outer tube 1, rear top cover 10
One end forms axial limiting to seal assembly 9, and rear top cover 10 is interference fitted in outer tube 1, and the end of the outer tube 1 is through bent
Into back-up ring, the other end of rear top cover 10 passes through the back-up ring axial limiting.The piston 4 is assemblied in one end of piston rod 3, piston rod
Inner tube 2 is separated into interior oil cavity 2a and interior air cavity 2b by the one end fits of 3 assembling pistons 4 in inner tube 2, piston rod 3 it is another
One end is exposed to the outside of outer tube 1 after being passed through from bearing 11, seal assembly 9, rear top cover 10 successively.The floating piston 8 coordinates
The cavity between outer tube 1 and inner tube 2 is divided into outer oil cavity body 1a and outer air cavity 1b between outer tube 1 and inner tube 2.It is oily outside
Filled with oil in cavity 1a and interior oil cavity 2a, the compressed air suits in outer air cavity 1b and interior air cavity 2b, piston rod 3 with branch
11 gaps of seat coordinate, therefore, compressed gas can by the gap between piston rod 3 and bearing 11, ventilative cavity, air-vent,
Flowed back and forth between interior air cavity 2b and outer air cavity 1b.
One end of valve seat 5 is fixed and is sealed with the other end of inner tube 2, and the other end of valve seat 5 is sealed and is fixed on outer tube 1
Interior, valve seat 5 is provided with axial stepped hole 5a and the oilhole 5b, oilhole 5b and stepped hole 5a of radial direction form asphalt channel, oil
Can back and forth be flowed between outer oil cavity body 1a and interior oil cavity 2a through oil-through hole 5b, stepped hole 5a.One end of valve element 6 is provided with
For the collar flange in sealed step hole aperture, 7 other ends for being fixed on outer tube 1 are blocked up afterwards, one end that 7 are blocked up afterwards is formed to valve seat 5
Axial limiting, blocks up 7 other end exposed to the outside of outer tube 1 afterwards, 7 is blocked up afterwards and is provided with through hole, the other end of the valve element 6 from according to
Secondary stepped hole 5a from valve seat 5, the through hole on rear stifled 7 are passed through.The valve element 6 includes valve rod 6a, push rod 6b, one end of valve rod 6a
One end with push rod 6b is supported, and the through hole on described rear stifled 7 is stepped hole, and push rod 6b is provided with the raised 6c of radial direction, push rod 6b
In axial displacement, raised 6c blocks up 7 top bar holes step surface after receiving is spacing.Spacer 12 is located in the stepped hole on valve seat 5, every
Set 12 is enclosed within valve element 6, and specifically, spacer 12 is enclosed within valve rod 6a, and the periphery of spacer 12 is provided with hole 12a, hole 12a with
Oilhole 5b and stepped hole 5a together form the passage of oil circuit.
As shown in Fig. 2 rear stifled 7 end outside outer tube 1 is connected with control valve element 6 and moving axially and making
The control member 13 of the asphalt channel break-make.The control member 13 includes coupling assembly 14 and drive connection component to valve
Core 6 imposes axial force and the manipulation component 15 being connected with coupling assembly.
As shown in Fig. 2,4 to 6, the end that coupling assembly 14 is blocked up outside outer tube 1 with tail is connected, and coupling assembly 14 is wrapped
Include：The stifled connector 14a of tail, tieback connection 14b, one end of the stifled connector 14a of tail are provided with along the stifled connector 14a axial directions cloth of the tail
Mounting hole 14c is put, tail stifled 7 extend into the stifled connector fastening of rear and tail in mounting hole, it is preferable that tail stifled 7 is provided with external screw thread, pacifies
Dress hole 14c internal faces are provided with internal thread, and the connector 14a stifled with tail of tail stifled 7 is connected through a screw thread.The side of the stifled connector 14a of tail
Wall is provided with mounting groove 14d, and mounting groove 14d is connected along the stifled connector radial arrangement of the tail and with mounting hole 14c, and tail blocks up connector
The support block 14e positioned at mounting groove 14d notches both sides is additionally provided with the side wall of 14a；Tieback connection 14b is hinged on support block
On 14e, tieback connection 14b substantially arcuates, one end of tieback connection 14b is provided with connecting portion, and the connecting portion includes two
Circle 14f with radial indentation, the breach for having interval, two circle 14f between two circle 14f is staggeredly arranged, in drag-line connection
The medium position of part 14b is provided with axis hole 14g, so that tieback connection 14b is hinged on support block 14e by axle.Drag-line connects
A part of fitting 14b is located in the mounting groove 14d and is supported with the push rod 6b of valve element 6.
As shown in Fig. 2,7 to 9, the manipulation component 15 includes drag-line 15a, activation lever 15b, support base 15c, drives thick stick
One end of bar 15b is provided with for receiving and connects the sleeve pipe 15d that drag-line draws head, and activation lever 15b sets the end face of sleeve pipe
Deep-slotted chip breaker 15e is provided with, another in activation lever 15b is provided with handle 15f, and handle 15f protrudes from activation lever 15b's
Surface, handle 15f is provided with the adaptation groove for adapting to finger, and adaptation groove is three, is respectively used to adaptation forefinger, middle finger and unknown
Refer to.A connecting pole 15g is additionally provided with activation lever 15b, connecting pole 15g is hollow connecting pole, activation lever 15b's
One corner is provided with breach, and the breach is in circular arc.Support base 15c is provided with guiding parts 15h, has on support base 15c and holds
Receive cavity, guiding parts 15h is a cylinder, and the cylinder is hollow, be additionally provided with support base 15c the first connecting pole 15i and
Second connecting pole 15j, guiding parts 15h, the first connecting pole 15i and the second connecting pole 15j are respectively positioned on the accommodating chamber of support base 15c
In body, and the line composition one three of three is angular.The activation lever 15b and support base 15c is hinged, specifically, support
When seat 15c and activation lever 15b is assembled, guiding parts 15h passes through deep-slotted chip breaker 15e, and the cooperation of guiding parts 15h gaps driving
In deep-slotted chip breaker 15e on lever 15b.Connecting pole 15g is corresponding with the first connecting pole 15i and both are connected by screw, and makes driving
Lever 15b and support base 15c is formed and is hinged, and the second connecting pole 15j is corresponding with the arc notch on activation lever 15b.Drag-line 15a
One end be connected with the sleeve pipe 15d on activation lever 15b, the other end of drag-line 15a is passed from support base 15c and is connected with drag-line
Part 14b is connected.
During concrete operations, the adaptation groove of the hand of operator from activation lever 15b buttresses activation lever 15b, to driving thick stick
Bar 15b rotations plus active force, activation lever 15b are rotated around the pin joint of connecting pole 15g and the first connecting pole 15i, activation lever 15b
In rotation process, guiding parts 15h is oriented to activation lever, and activation lever 15b drives drag-line 15a along sleeve pipe 15d
Circumferencial direction carry out folding and unfolding, drag-line 15a drives tieback connection 14b rotations, and tieback connection 14 pushes the push rod 6b of valve element 6
Displacement, push rod 6b promotes valve rod 6a, so that the stepped hole aperture sealed by valve element 6 on valve seat 5 is opened, in the effect of external force
It is lower to promote piston rod or outer tube 1, oil is flowed between interior oil cavity and outer oil cavity body, so that gas is in outer air cavity and interior gas
Flowed between cavity, so as to change the extension elongation of piston rod, reach the purpose of adjustment, when the extension elongation of piston rod is to properly
During position, active force no longer is applied to activation lever 15b, in the pressure of compressed gas is delivered to interior oil cavity by piston 4
Oil, the pressure transmission to valve element 6, makes the axial displacement of valve element 6 and resetted by oil, and valve element 6 seals the stepped hole aperture of valve seat 5
Close, so, the gentle contracting gas of oil can not back and forth flow in described cavity, and the position of piston rod 3 is locked.
Claims (8)
1. rigid locking air pressure rod, including outer tube (1), inner tube (2), piston rod (3), piston (4), valve seat (5), valve element (6), after
Stifled (7), floating piston (8), seal assembly (9), rear top cover (10), the bearing (11) with air-vent, bearing (11) is positioned at outer
It is fastened as a whole in pipe (1) and with outer tube (1), inner tube (2) is interior positioned at outer tube (1), one end of inner tube (2) and the one of bearing (11)
End is fixed, and seal assembly (9) is arranged in outer tube (1) and positioned at the side of bearing (11) other end, and the rear top cover (10) is solid
One end of outer tube (1) is scheduled on, one end of rear top cover forms axial limiting to seal assembly (9), and the piston (4) is assemblied in piston
Inner tube (2) is separated into interior oil cavity by one end of bar (3), the one end fits of piston rod (3) assembling piston (4) in inner tube (2)
(2a) and interior air cavity (2b), the other end of piston rod (3) is passed through from bearing (11), seal assembly (9), rear top cover (10) successively
Afterwards exposed to the outside of outer tube (1), the floating piston (8) coordinate between outer tube (1) and inner tube (2) by outer tube (1) with it is interior
Cavity between pipe (2) is divided into outer oil cavity body (1a) and outer air cavity (1b), it is characterised in that：One end of the valve seat (5)
The other end with inner tube (2) is fixed and sealed, and the other end of valve seat (5) is sealed and is fixed in outer tube (1), and valve seat sets on (5)
There is the oilhole of axial stepped hole and radial direction, oilhole forms asphalt channel with stepped hole, and one end of valve element (6) is provided with for close
The collar flange in envelope stepped hole aperture, blocks up the other end that (7) are fixed on outer tube (1) afterwards, and the one end of (7) is blocked up afterwards to valve seat (5) shape
Into axial limiting, the outside of the other end exposed to outer tube (1) of (7) is blocked up afterwards, (7) are blocked up afterwards and is provided with through hole, the valve element (6)
The other end from stepped hole successively from valve seat (5), after the through hole that blocks pass through.
2. rigid locking air pressure rod according to claim 1, it is characterised in that：The bearing (11) is connected with inner tube (2)
End be provided with lug boss (11a), the lug boss (11a) is inserted into inner tube.
3. rigid locking air pressure rod according to claim 1, it is characterised in that：The valve element (6) including valve rod (6a), push away
Bar (6b), one end and one end of push rod (6b) of valve rod (6a) are supported, and the through hole on rear stifled (7) is stepped hole, push rod
(6b) is provided with the projection (6c) of radial direction, and in axial displacement, raised (6c) blocks up the step in (7) top bar hole to push rod (6b) after receiving
Face is spacing.
4. rigid locking air pressure rod according to claim 1, it is characterised in that：Also include a spacer (12), spacer
(12) in the stepped hole on valve seat (5), spacer (12) is enclosed within valve element (6), and the periphery of spacer (12) is provided with hole
(12a)。
5. the rigid locking air pressure rod according to Claims 1-4 any one, it is characterised in that：Stifled (7) is sudden and violent after described
The outside end of outer tube (1) is exposed to be connected with control valve element (6) axial movement and make the control member of the asphalt channel break-make
(13)。
6. rigid locking air pressure rod according to claim 4, it is characterised in that：Control member (13) includes：
Coupling assembly (14), the coupling assembly is connected with the stifled end outside exposed to outer tube (1) of tail；
Drive connection component imposes axial force and the manipulation component (15) being connected with coupling assembly to valve element (6).
7. rigid locking air pressure rod according to claim 5, it is characterised in that：The coupling assembly (14) includes：
Tail blocks up connector (14a), and one end that tail blocks up connector (14a) is provided with along the tail axial arranged mounting hole of stifled connector
(14c), blocks up (7) and extend into stifled connector (14a) fastening of rear and tail in mounting hole afterwards, and tail is blocked up and set on the side wall of connector (14a)
There is mounting groove (14d), mounting groove (14d) is connected along stifled connector (14a) radial arrangement of the tail and with mounting hole (14c), and tail is blocked up
The support block (14e) positioned at mounting groove notch both sides is additionally provided with the side wall of connector (14a)；
The tieback connection (14b) in support block is hinged on, a part for tieback connection (14b) is located at the mounting groove
Supported in (14d) and with valve element (6).
8. rigid locking air pressure rod according to claim 6, it is characterised in that：The manipulation component (15) includes：
Drag-line (15a)；
Activation lever (15b), one end of activation lever (15b) is provided with for receiving and connects the sleeve pipe that drag-line draws head
(15d), the end face that activation lever (15b) sets sleeve pipe is provided with deep-slotted chip breaker (15e)；
Support base (15c), support base (15c) is provided with guiding parts (15h), the activation lever (15b) and support base (15c)
It is hinged, guiding parts (15h) gap coordinates in the deep-slotted chip breaker (15e) in activation lever (15b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144284.2U CN206280426U (en) | 2016-10-20 | 2016-10-20 | Rigid locking air pressure rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144284.2U CN206280426U (en) | 2016-10-20 | 2016-10-20 | Rigid locking air pressure rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280426U true CN206280426U (en) | 2017-06-27 |
Family
ID=59085526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144284.2U Active CN206280426U (en) | 2016-10-20 | 2016-10-20 | Rigid locking air pressure rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352004A (en) * | 2016-10-20 | 2017-01-25 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| CN112814186A (en) * | 2020-12-31 | 2021-05-18 | 青岛三山机电科技发展有限公司 | Anti-seismic energy absorption device of wooden house ceiling |
-
2016
- 2016-10-20 CN CN201621144284.2U patent/CN206280426U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352004A (en) * | 2016-10-20 | 2017-01-25 | 安徽莱特气弹簧有限公司 | Rigid locking pneumatic rod |
| CN106352004B (en) * | 2016-10-20 | 2018-11-16 | 安徽莱特气弹簧有限公司 | Rigid locking air pressure rod |
| CN112814186A (en) * | 2020-12-31 | 2021-05-18 | 青岛三山机电科技发展有限公司 | Anti-seismic energy absorption device of wooden house ceiling |
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