CN204572390U - Nothing left gap pressure gas and oil cylinder - Google Patents

Nothing left gap pressure gas and oil cylinder Download PDF

Info

Publication number
CN204572390U
CN204572390U CN201520006948.8U CN201520006948U CN204572390U CN 204572390 U CN204572390 U CN 204572390U CN 201520006948 U CN201520006948 U CN 201520006948U CN 204572390 U CN204572390 U CN 204572390U
Authority
CN
China
Prior art keywords
cylinder
flip sleeve
cavity
piston
sliding cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520006948.8U
Other languages
Chinese (zh)
Inventor
苏养元
李毅
高云峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Kunlun Machinery Equipment Manufacturing Co., Ltd.
Original Assignee
XI'AN KUNLUN INDUSTRY (GROUP) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN KUNLUN INDUSTRY (GROUP) Co Ltd filed Critical XI'AN KUNLUN INDUSTRY (GROUP) Co Ltd
Priority to CN201520006948.8U priority Critical patent/CN204572390U/en
Application granted granted Critical
Publication of CN204572390U publication Critical patent/CN204572390U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of nothing left gap pressure gas and oil cylinder, there is clearance for solving existing oil cylinder of calming the anger, causing the inefficient technical problem of cylinder efficient of calming the anger.Technological scheme designs one group of flip sleeve at cylinder barrel cylinder bottom, and flip sleeve one end is with round platform, and the other end of flip sleeve connects baffle plate with baffle plate attachment screw, and flip sleeve slides at cylinder bottom endoporus and utilizes baffle limiting, realizes reciprocatingly sliding of flip sleeve.Flip sleeve center has a blind hole to communicate with cylinder bottom endoporus, is used for installing Returnning spring, and flip sleeve compresses by Returnning spring.When cylinder piston and flip sleeve end contact, cylinder piston and flip sleeve compression reseting spring simultaneously, reduces the vibratory impulse of calm the anger oil cylinder and hydraulic system.Due to the design of flip sleeve, cylinder piston end face and flip sleeve end face are fitted completely, and in cylinder piston pressurized gas cylinder barrel, the terminal of rock gas, can not form clearance, avoid the reverse impact of commutation moment pressurized gas, improve the working efficiency of oil cylinder of calming the anger.

Description

Nothing left gap pressure gas and oil cylinder
Technical field
The utility model relates to one and to calm the anger oil cylinder, particularly a kind of nothing left gap pressure gas and oil cylinder.
Background technique
With reference to Fig. 1, Fig. 2.The oil cylinder of calming the anger that existing hydraulic piston type compressor adopts, run working principle according to it, cylinder piston all can not run to cylinder cylinder bottom at every turn, and namely each compressed natural gas of cylinder piston can not be discharged completely, there is certain clearance.
Existing oil cylinder of calming the anger comprises the first from left level expulsion valve 1, left cylinder 2, left spacer 3, the second from left level expulsion valve 4, hydraulic jack 5, right secondary expulsion valve 6, right cylinder 7, right one-level expulsion valve 8, right one-level enter valve 9, right cylinder piston 10, right secondary enter valve 11, right spacer 12, oil cylinder piston 13, piston rod 14, the second from left level enter valve 15, left cylinder piston 16, the first from left level enter valve 17, and wherein hydraulic fluid port A and hydraulic fluid port B is the control port on hydraulic jack 5.Left cylinder 2 and hydraulic jack 5 separate and ensure sealing by left spacer 3, and right cylinder 12 and hydraulic jack 5 separate and ensure sealing by right spacer 12.When hydraulic oil enters hydraulic jack 5 left chamber from hydraulic fluid port A, the right chamber of hydraulic jack 5 is from hydraulic fluid port B oil return, oil cylinder piston 13 moves to right under hydraulic oil promotes, the right cylinder piston 10 connected by piston rod 14 is corresponding to move to right, and one stage of compression is carried out to the rock gas in right cylinder 7 rodless cavity, compressed natural gas enters valve 11 through right one-level expulsion valve 8 and right one-level and enters in right cylinder 7 rod chamber; On the other hand, left cylinder piston 16 moves to right and carries out two-stage compression to compressed natural gas in left cylinder 2 rod chamber, then discharge through the second from left level expulsion valve 4, simultaneously left cylinder piston 16 moves to right and left cylinder 2 rodless cavity volume is increased, and natural gas via the first from left level enters valve 17 and enters left cylinder 2 rodless cavity and carry out air-breathing.
When oil cylinder piston 13 runs to commutation position, control panel sends commutation signal, hydraulic fluid port A and hydraulic fluid port B running of hydraulic power oil reverse, when hydraulic oil enters hydraulic jack 5 right chamber from hydraulic fluid port B, the left chamber of hydraulic jack 5 is from hydraulic fluid port A oil return, oil cylinder piston 13 promotes bottom right at hydraulic oil and moves to left, the left cylinder piston 16 connected by piston rod 14 is corresponding to move to left, and one stage of compression is carried out to the rock gas in left cylinder 2 rodless cavity, compressed natural gas enters valve 15 through the first from left level expulsion valve 1 and the second from left level and enters in left cylinder 2 rod chamber; On the other hand, right cylinder piston 10 moves to left and carries out two-stage compression to compressed natural gas in right cylinder 7 rod chamber, then discharge through right secondary expulsion valve 6, simultaneously right cylinder piston 10 moves to left and right cylinder 7 rodless cavity volume is increased, and the right one-level of natural gas via enters valve 9 and enters right cylinder 7 rodless cavity and carry out air-breathing.When oil cylinder piston 13 runs to commutation position, control panel sends commutation signal, hydraulic fluid port A and hydraulic fluid port B running of hydraulic power oil reverse.And so forth, complete rock gas is compressed continuously.
Calm the anger left cylinder piston 16 movement position C and movement position D in left cylinder 2 of oil cylinder, and the move distance that left cylinder piston 16 movement position C moves to position D is S, and left cylinder piston 16 movement position D is H to the distance of left cylinder 2 end.After left cylinder piston 16 moves to the commutation position B of setting.Position signal is delivered to control panel, by control panel, commutation instruction is sent to changement.Changement starts action.Because changement is in commutation process, press pump unloads, and the hydraulic fluid port A of hydraulic jack 5 is all communicated with hydraulic oil container with hydraulic fluid port B, and the oil pressure acted on oil cylinder piston 13 disappears.When the inertia motion of left cylinder piston 16 is to position A, the commutation action of changement completes, and pressure oil starts injection liquid cylinder pressure, and under the effect of pressure oil, left cylinder piston 16 is braked rapidly.From the A of position oppositely, whole commutation process terminates.Between A, B 2, this section moves the head reach that S is left cylinder piston 16 commutation process, and clearance is then for A point is to the distance H of left cylinder 2 cylinder bottom.Due to the existence of clearance H, high-pressure natural gas is had in the cavity volume of clearance H, in the moment of calming the anger oil cylinder commutation, the hydraulic fluid port A of hydraulic jack 5 is all communicated with hydraulic oil container with hydraulic fluid port B, high-pressure natural gas volume in clearance H cavity volume outwards expands, a pressure is to the right acted on to left cylinder piston 16, left cylinder piston 16 can move right a segment distance, the rock gas volume reduction that valve 17 enters into left cylinder 2 is entered from the first from left level, commutate simultaneously moment reaction force, to whole calm the anger oil cylinder and hydraulic system moment impact larger.So, due to the existence of clearance, not only cause the moment great impact of calm the anger oil cylinder and hydraulic system, and reduce the working efficiency of oil cylinder of calming the anger.
Summary of the invention
There is clearance to overcome existing oil cylinder of calming the anger, causing the inefficient deficiency of cylinder efficient of calming the anger.The utility model provides a kind of nothing left gap pressure gas and oil cylinder, this oil cylinder of calming the anger designs one group of flip sleeve at cylinder barrel cylinder bottom, flip sleeve one end is with round platform, and the clearance volume that cylinder barrel and cylinder piston are formed is filled up by round platform, ensures cylinder piston when running to limit position without clearance; The other end of flip sleeve connects baffle plate with baffle plate attachment screw, and flip sleeve slides at cylinder bottom endoporus and utilizes gear baffle limiting, realizes reciprocatingly sliding of flip sleeve.Flip sleeve center has a blind hole to communicate with cylinder bottom endoporus, is used for installing Returnning spring, utilizes the cover plate of cylinder bottom to the certain precompression of Returnning spring, is compressed by flip sleeve.Rock gas in cylinder piston pressurized gas cylinder barrel, when cylinder piston and flip sleeve end contact, due to the effect of Returnning spring, cylinder piston and flip sleeve compression reseting spring simultaneously, reduces the vibratory impulse of calm the anger oil cylinder and hydraulic system.Due to the design of flip sleeve, cylinder piston end face and flip sleeve end face are fitted completely, and in cylinder piston pressurized gas cylinder barrel, the terminal of rock gas, can not form clearance, avoid the reverse impact of commutation moment pressurized gas, can improve the working efficiency of oil cylinder of calming the anger.
The utility model solves the technological scheme that its technical problem adopts: a kind of nothing left gap pressure gas and oil cylinder, comprise piston rod 14, be characterized in also comprising end cap 1, Returnning spring 2, baffle plate attachment screw 3, exhaust-valve 6, baffle plate 7, one-way valve 8, flip sleeve 9, expulsion valve 10, cylinder piston 11, cylinder 12, entering valve 13 and end cap attachment screw 19.Described cylinder 12 is connected with cylinder bottom 5 by clamping, and the center hole of cylinder bottom 5 is provided with flip sleeve 9, flip sleeve 9 and cylinder bottom 5 endoporus energy relative sliding.One end of flip sleeve 9 is with round platform, and baffle plate 7 is connected with flip sleeve 9 with baffle plate attachment screw 3 by the other end of flip sleeve 9, and flip sleeve 9 slides at cylinder bottom 5 endoporus and utilizes baffle plate 7 spacing.Flip sleeve 9 center has a blind hole to be used for installing Returnning spring 2, and be fixedly connected on cylinder bottom 5 with end cap attachment screw 19 by end cap 1, Returnning spring 2 compresses with precompression by end cap 1, utilizes the precompression of Returnning spring 2 to be compressed by flip sleeve 9.High-pressure natural gas is divided into two-way after the expulsion valve 10 of cylinder 12 is discharged, high-pressure natural gas is entered air cylinder by one tunnel, one-way valve 8 of separately leading up to is communicated with the enterprising pore 4 of cylinder bottom 5, realize being communicated with the cavity 18 in cylinder bottom 5, inlet hole 4 is provided with expulsion valve 10, the high-pressure natural gas in cylinder bottom 5 inner cavity 18 is discharged.
Piston rod 14 drives cylinder piston 11 in cylinder 12 to left movement, the end contact of cylinder piston 11 and flip sleeve 9, instantaneous impact is to the right produced to flip sleeve 9, is alleviated by Returnning spring 2 and impact, reduce cylinder piston 11 and vibrate with the end contact of flip sleeve 9.High-pressure natural gas enters in right sliding cavity 16 by flip sleeve 9 and cylinder gap 15, cavity 18 and the high-pressure natural gas pressure approximately equal in right sliding cavity 16, flip sleeve 9 continues to left movement, in right sliding cavity 16 and cavity 18, gas is reduced gradually by compression volume, the left sliding cavity 20 that baffle plate 7 and cylinder bottom 5 are formed increases gradually, by glade plane space 17, right sliding cavity 16, cavity 18 are communicated with left sliding cavity 20, due to the existence of one-way valve 8, in right sliding cavity 16, cavity 18 and left sliding cavity 20, gas pressure increases gradually, alleviates impact shock.
Piston rod 14 drives cylinder piston 11 in cylinder 12, move right moment, cylinder piston 11 is driven in cylinder 12 not by hydraulic coupling at commutation moment piston rod 14, be in free state, cylinder piston 11 is subject to high-pressure natural gas in cavity 18 and Returnning spring 2 thrust to the right.Flip sleeve 9 continues to move right, right sliding cavity 16 and cavity 18 inner volume increase gradually, the left sliding cavity 20 that baffle plate 7 and cylinder bottom 5 are formed reduces gradually, by glade plane space 17, right sliding cavity 16, cavity 18 are communicated with left sliding cavity 20, in right sliding cavity 16, cavity 18 and left sliding cavity 20, gas pressure reduces gradually, alleviates the reverse impact vibration of cylinder piston 11.When baffle plate 7 end face and cylinder bottom 5 are fitted, limit slippage cover 9 moves right, and now enter valve 13 and open, piston rod 14 drives cylinder piston 11 to move right in cylinder 12, realizes cylinder rodless cavity air-breathing.
The beneficial effects of the utility model are: this oil cylinder of calming the anger designs one group of flip sleeve at cylinder barrel cylinder bottom, and flip sleeve one end is with round platform, and the clearance volume that cylinder barrel and cylinder piston are formed is filled up by round platform, ensure cylinder piston when running to limit position without clearance; The other end of flip sleeve connects baffle plate with baffle plate attachment screw, and flip sleeve slides at cylinder bottom endoporus and utilizes gear baffle limiting, realizes reciprocatingly sliding of flip sleeve.Flip sleeve center has a blind hole to communicate with cylinder bottom endoporus, is used for installing Returnning spring, utilizes the cover plate of cylinder bottom to the certain precompression of Returnning spring, is compressed by flip sleeve.Rock gas in cylinder piston pressurized gas cylinder barrel, when cylinder piston and flip sleeve end contact, due to the effect of Returnning spring, cylinder piston and flip sleeve compression reseting spring simultaneously, reduces the vibratory impulse of calm the anger oil cylinder and hydraulic system.Due to the design of flip sleeve, cylinder piston end face and flip sleeve end face are fitted completely, and in cylinder piston pressurized gas cylinder barrel, the terminal of rock gas, can not form clearance, avoid the reverse impact of commutation moment pressurized gas, improve the working efficiency of oil cylinder of calming the anger.
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is that background technique is calmed the anger the structure diagram of oil cylinder.
Fig. 2 is oil cylinder clearance schematic diagram of calming the anger in Fig. 1.
1-the first from left level expulsion valve, the left cylinder of 2-, the left spacer of 3-, 4-the second from left level expulsion valve, 5-hydraulic jack, the right secondary expulsion valve of 6-, the right cylinder of 7-, the right one-level expulsion valve of 8-, the right one-level of 9-enters valve, the right cylinder piston of 10-, the right one-level of 11-enters valve, the right spacer of 12-, 13-oil cylinder piston, 14-piston rod, 15-the second from left level enters valve, the left cylinder piston of 16-, 17-the first from left level enters valve.
Fig. 3 is the structural representation (working state buffer compression) of the utility model nothing left gap pressure gas and oil cylinder.
Fig. 4 is the structural representation (the reverse air inlet of working state) of the utility model nothing left gap pressure gas and oil cylinder.
In figure, 1-end cap, 2-Returnning spring, 3-baffle plate attachment screw, 4-inlet hole, 5-cylinder bottom, 6-exhaust-valve, 7-baffle plate, 8-one-way valve, 9-flip sleeve, 10-expulsion valve, 11-cylinder piston, 12-cylinder, 13-enters valve, 14-piston rod, 15-flip sleeve and cylinder gap, the right sliding cavity of 16-, 17-glade plane space, 18-cavity, 19-end cap attachment screw, the left sliding cavity of 20-, 21-baffle plate and cylinder bottom gap.
Embodiment
Following examples are with reference to Fig. 3 and Fig. 4.
The utility model nothing left gap pressure gas and oil cylinder comprises end cap 1, Returnning spring 2, baffle plate attachment screw 3, cylinder bottom 5, exhaust-valve 6, baffle plate 7, one-way valve 8, flip sleeve 9, expulsion valve 10, cylinder piston 11, cylinder 12, enters valve 13, piston rod 14 and end cap attachment screw 19.Cylinder bottom 5 is connected by clamping with cylinder 12, and the center hole of cylinder bottom 5 is provided with flip sleeve 9, and flip sleeve 9 and cylinder bottom 5 endoporus can make relative sliding.One end of flip sleeve 9 is with round platform, and baffle plate 7 is connected with flip sleeve 9 with baffle plate attachment screw 3 by the other end of flip sleeve 9, and flip sleeve 9 slides at cylinder bottom 5 endoporus and utilizes baffle limiting.Flip sleeve 9 center has a blind hole to be used for installing Returnning spring 2, and be fixedly connected on cylinder bottom 5 with end cap attachment screw 19 by end cap 1, Returnning spring 2 compresses with precompression by end cap 1, utilizes the precompression of Returnning spring 2 to be compressed by flip sleeve 9.High-pressure natural gas is divided into two-way after the expulsion valve 10 of cylinder 12 is discharged, high-pressure natural gas is entered air cylinder by one tunnel, one-way valve 8 of separately leading up to is communicated with the enterprising pore 4 of cylinder bottom 5, realize being communicated with the cavity 18 in cylinder bottom 5, inlet hole 4 is provided with expulsion valve 10, the high-pressure natural gas in cylinder bottom 5 inner cavity 18 is discharged.
Piston rod 14 drives cylinder piston 11 in cylinder 12 to left movement, rock gas in cylinder rodless cavity is compressed, the end contact of cylinder piston 11 and flip sleeve 9, instantaneous impact is to the right produced to flip sleeve 9, alleviated by Returnning spring 2 and impact, reduce cylinder piston 11 and vibrate with the end contact of flip sleeve 9.High-pressure natural gas enters in right sliding cavity 16 by flip sleeve 9 and cylinder gap 15, cavity 18 and the high-pressure natural gas pressure approximately equal in right sliding cavity 16, flip sleeve 9 continues to left movement, in right sliding cavity 16 and cavity 18, gas is reduced gradually by compression volume, the left sliding cavity 20 that baffle plate 7 and cylinder bottom 5 are formed increases gradually, by glade plane space 17, right sliding cavity 16, cavity 18 are communicated with left sliding cavity 20, due to the existence of one-way valve 8, in right sliding cavity 16, cavity 18 and left sliding cavity 20, gas pressure increases gradually, alleviates impact shock.
Piston rod 14 drives cylinder piston 11 in cylinder 12, move right moment, cylinder piston 11 is driven in cylinder 12 not by hydraulic coupling at commutation moment piston rod 14, be in free state, cylinder piston 11 is subject to high-pressure natural gas in cavity 18 and Returnning spring 2 thrust to the right.Flip sleeve 9 continues to move right, right sliding cavity 16 and cavity 18 inner volume increase gradually, the left sliding cavity 20 that baffle plate 7 and cylinder bottom 5 are formed reduces gradually, by glade plane space 17, right sliding cavity 16, cavity 18 are communicated with left sliding cavity 20, in right sliding cavity 16, cavity 18 and left sliding cavity 20, gas pressure reduces gradually, alleviates the reverse impact vibration of cylinder piston 11.When baffle plate 7 end face and cylinder bottom 5 are fitted, limit slippage cover 9 moves right, and now enter valve 13 and open, piston rod 14 drives cylinder piston 11 to move right in cylinder 12, realizes cylinder rodless cavity air-breathing.

Claims (1)

1. a nothing left gap pressure gas and oil cylinder, comprise piston rod (14), it is characterized in that: also comprise end cap (1), Returnning spring (2), baffle plate attachment screw (3), exhaust-valve (6), baffle plate (7), one-way valve (8), flip sleeve (9), expulsion valve (10), cylinder piston (11), cylinder (12), enter valve (13) and end cap attachment screw (19), described cylinder (12) is connected with cylinder bottom (5) by clamping, and the center hole of cylinder bottom (5) is provided with flip sleeve (9), flip sleeve (9) and cylinder bottom (5) endoporus energy relative sliding, one end of flip sleeve (9) is with round platform, baffle plate (7) is connected with flip sleeve (9) with baffle plate attachment screw (3) by the other end of flip sleeve (9), and flip sleeve (9) slides at cylinder bottom (5) endoporus and utilizes baffle plate (7) spacing, flip sleeve (9) center has a blind hole to be used for installing Returnning spring (2), with end cap attachment screw (19), end cap (1) is fixedly connected on cylinder bottom (5), Returnning spring (2) compresses with precompression by end cap (1), utilizes the precompression of Returnning spring (2) to be compressed by flip sleeve (9), high-pressure natural gas is divided into two-way after the expulsion valve (10) of cylinder (12) is discharged, high-pressure natural gas is entered air cylinder by one tunnel, one-way valve (8) of separately leading up to is communicated with cylinder bottom (5) enterprising pore (4), realize being communicated with the cavity (18) in cylinder bottom (5), inlet hole (4) is provided with expulsion valve (10), the high-pressure natural gas in cylinder bottom (5) inner cavity (18) is discharged, piston rod (14) drives cylinder piston (11) in cylinder (12) to left movement, the end contact of cylinder piston (11) and flip sleeve (9), to flip sleeve (9) generation instantaneous impact to the right, alleviated by Returnning spring (2) and impact, reduce cylinder piston (11) and vibrate with the end contact of flip sleeve (9), high-pressure natural gas enters in right sliding cavity (16) by flip sleeve (9) and cylinder gap (15), cavity (18) and the high-pressure natural gas pressure approximately equal in right sliding cavity (16), flip sleeve (9) continues to left movement, right sliding cavity (16) and cavity (18) interior gas are reduced gradually by compression volume, the left sliding cavity (20) that baffle plate (7) and cylinder bottom (5) are formed increases gradually, by glade plane space (17) by right sliding cavity (16), cavity (18) is communicated with left sliding cavity (20), due to the existence of one-way valve (8), right sliding cavity (16), cavity (18) and left sliding cavity (20) interior gas pressure increase gradually, alleviate impact shock, piston rod (14) drives cylinder piston (11) in cylinder (12), move right moment, cylinder piston (11) is driven in cylinder (12) not by hydraulic coupling in commutation moment piston rod (14), be in free state, cylinder piston (11) is subject to high-pressure natural gas in cavity (18) and Returnning spring (2) thrust to the right, flip sleeve (9) continues to move right, right sliding cavity (16) and cavity (18) inner volume increase gradually, the left sliding cavity (20) that baffle plate (7) and cylinder bottom (5) are formed reduces gradually, by glade plane space (17), right sliding cavity (16), cavity (18) are communicated with left sliding cavity (20), right sliding cavity (16), cavity (18) and left sliding cavity (20) interior gas pressure reduce gradually, alleviate the reverse impact vibration of cylinder piston (11), when baffle plate (7) end face and cylinder bottom (5) are fitted, limit slippage cover (9) moves right, now enter valve (13) to open, piston rod (14) drives cylinder piston (11) to move right in cylinder (12), realizes cylinder rodless cavity air-breathing.
CN201520006948.8U 2015-01-06 2015-01-06 Nothing left gap pressure gas and oil cylinder Expired - Fee Related CN204572390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520006948.8U CN204572390U (en) 2015-01-06 2015-01-06 Nothing left gap pressure gas and oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520006948.8U CN204572390U (en) 2015-01-06 2015-01-06 Nothing left gap pressure gas and oil cylinder

Publications (1)

Publication Number Publication Date
CN204572390U true CN204572390U (en) 2015-08-19

Family

ID=53865037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520006948.8U Expired - Fee Related CN204572390U (en) 2015-01-06 2015-01-06 Nothing left gap pressure gas and oil cylinder

Country Status (1)

Country Link
CN (1) CN204572390U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564610A (en) * 2015-01-06 2015-04-29 西安昆仑工业(集团)有限责任公司 Non-clearance pneumatic oil cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564610A (en) * 2015-01-06 2015-04-29 西安昆仑工业(集团)有限责任公司 Non-clearance pneumatic oil cylinder

Similar Documents

Publication Publication Date Title
CN203532179U (en) Hydraulic driving type mud sucking and discharging device
CN102582098A (en) Dual-station pneumatic stamping machine
CN105275037A (en) Hydraulic breaking hammer
CN102345652A (en) Buffering type cylinder
CN201412411Y (en) Buffer cylinder
CN104930017B (en) Hydraulic device capable of adjusting buffer energy on two ends
CN204572390U (en) Nothing left gap pressure gas and oil cylinder
CN201103527Y (en) Capacity type hydraulic driving reciprocating compressor
CN104564610A (en) Non-clearance pneumatic oil cylinder
CN108799245A (en) A kind of hydraulic cylinder with cushion performance
CN203384006U (en) Simple air compressor
CN201103528Y (en) Double-hydraulic cylinder driven positive displacement type reciprocating compressor
CN202073863U (en) Differential pressure signaling structure for reversing of hydraulic cylinder
CN208381391U (en) A kind of valve
CN106151167A (en) Hydraulic Double bumper post plug cylinder
CN207333130U (en) A kind of electromagnetic plunge pump
CN202047957U (en) Hydraulic two-cylinder single-acting reciprocating pump driving system adopting turning valve to change direction
CN203362432U (en) Axial distribution high-frequency pneumatic pump
CN204212947U (en) The triggering wheel of fluid handling device
CN204553402U (en) Single-acting cylinder
CN203702486U (en) Gas-liquid-mixed medium mixed transportation supercharger device
CN204267418U (en) Large diameter, short stroke hydraulic cylinder
CN207261187U (en) A kind of Pneumatic booster pump
CN203948383U (en) A kind of high speed hydraulic cylinder damping mechanism
CN203248446U (en) Concrete pump hydraulic cylinder with automatic oil replenishing and limiting achievable

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20180608

Address after: 710043 28 happy North Road, new suburb, Xi'an, Shaanxi

Patentee after: Shaanxi Kunlun Machinery Equipment Manufacturing Co., Ltd.

Address before: No. 67 happy North Road, Xi'an, Shaanxi Province

Patentee before: Xi'an Kunlun Industry (Group) Co., Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20190106

CF01 Termination of patent right due to non-payment of annual fee