CN111271339A - Buffering formula auto-lock cylinder - Google Patents
Buffering formula auto-lock cylinder Download PDFInfo
- Publication number
- CN111271339A CN111271339A CN202010191515.XA CN202010191515A CN111271339A CN 111271339 A CN111271339 A CN 111271339A CN 202010191515 A CN202010191515 A CN 202010191515A CN 111271339 A CN111271339 A CN 111271339A
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- Prior art keywords
- wall
- locking
- groove
- cylinder
- clamping
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Actuator (AREA)
Abstract
The invention relates to a buffer type self-locking cylinder which comprises a base, a driving cylinder, a self-locking unit and a tripod, wherein the driving cylinder is arranged at the upper end of the base, the self-locking unit is arranged on the outer wall of the driving cylinder, and the tripod is connected to the outer wall of the base in a clamping manner; the piston rod is fixed in a double self-locking mode, so that the loss of the piston and the sealing ring is reduced, the service life of the self-locking mechanism is prolonged in the double self-locking mode, and the service life of the cylinder is prolonged through clamping, threaded clamping and triple support of the piston; according to the invention, the tripod clamped at the lower end of the cylinder is arranged, so that the problem that the cylinder is toppled in the use process is prevented, and the potential safety hazard is solved.
Description
Technical Field
The invention belongs to the technical field of pneumatic transmission, and particularly relates to a buffer type self-locking air cylinder.
Background
The cylinder is a cylindrical metal part that guides the piston to reciprocate linearly in the cylinder. Air converts thermal energy into mechanical energy by expansion in an engine cylinder; the gas is compressed by a piston in a compressor cylinder to increase pressure. The pneumatic actuator converts the pressure energy of compressed gas into mechanical energy in pneumatic transmission. The cylinder has two types of reciprocating linear motion and reciprocating swing. The cylinders which do reciprocating linear motion can be divided into 4 types of single-acting cylinders, double-acting cylinders, diaphragm type cylinders and impact cylinders. Wherein, single-acting cylinder: only one end is provided with a piston rod, air is supplied from one side of the piston to gather energy to generate air pressure, and the air pressure pushes the piston to generate thrust to extend out and return by a spring or dead weight.
The following problems often exist during the use of the cylinder: the cylinder needs to be kept in a jacking state continuously in the using process, so that great pressure is caused to a piston in the cylinder, and great loss is caused to the piston and a sealing ring in long-term use, so that the service life is shortened; when the cylinder is used by a person, the cylinder can be moved, so that various objects can be lifted, but the cylinder cannot be fixed, so that the objects can be toppled over when lifted, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a buffer type self-locking air cylinder which has the functions of buffering and self-locking impact force between a piston rod and a lifting piece and the like and solves the problems.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a buffer type self-locking cylinder comprises a base, a driving cylinder, a self-locking unit and a tripod, wherein the driving cylinder is arranged at the upper end of the base, the self-locking unit is arranged on the outer wall of the driving cylinder, and the tripod is connected to the outer wall of the base in a clamping manner; the driving cylinder lifts an object, the self-locking unit locks the piston rod, the pressure of the piston is reduced, and the tripod enables the driving cylinder to be more stable during jacking;
the driving air cylinder comprises a cylinder body, a piston rod, a return spring, a sealing gasket, a lifting seat and a buffer spring, the cylinder body is arranged at the upper end of the base, the piston rod is connected with the inner wall of the cylinder body in a sliding mode, the return spring is arranged between the inner wall of the lower end of the piston rod and the inner wall of the upper end of the cylinder body, the sealing gasket is arranged at the lower end of the piston rod, a sliding groove is formed in the upper end of the piston rod, the lifting seat is connected with the sliding groove in; the piston rod upwards jacks up the object, the reset spring resets the piston rod downwards, the sealing gasket seals the air cavity at the lower end of the cylinder body, so that the air pressure of the air cavity is increased, the piston rod is pushed to upwards lift the object, the buffer spring assists the lifting seat to contact the object, and when the buffer spring prevents the lifting seat from contacting the object, the impact force is too large, so that the object is damaged.
The self-locking unit comprises a threaded rotary drum, a threaded groove, a slotted rotary drum, a locking mechanism, a cross rotary frame and a limiting clamping drum, wherein the threaded groove is formed in the outer wall of the cylinder body;
the tripod comprises a clamping groove, a bottom plate, a clamping mechanism, a rotating rod, a supporting sleeve, a telescopic rod, a hinging seat, a moving ring and a hinging rod, wherein the clamping groove is uniformly formed in the outer wall of the base along the axial direction; the clamping mechanism is connected with the base through the clamping groove, and the hinged rod and the moving ring are driven to open the rotating rod towards the outer end through retraction of the telescopic rod, so that the tripod is opened to fix the driving cylinder;
as a preferable scheme of the present invention, the locking mechanism includes locking grooves, a locking block, an auxiliary spring and a limiting groove, the outer wall of the threaded drum is uniformly provided with the locking grooves along the axial direction, the locking block is connected with the locking grooves in a sliding manner, the inner end of the locking block is connected with the inner wall of the inner end of the locking groove through the auxiliary spring, and the outer wall of the slotted drum is provided with the limiting groove along the axial direction. The auxiliary spring pushes the locking block to move outwards, and when the locking block is aligned with the limiting groove, the locking block is clamped with the limiting clamping cylinder after being popped outwards;
as a preferred scheme of the invention, the number of the limiting grooves is consistent with that of the locking grooves, and the limiting grooves are in a V-shaped structure.
As a preferable scheme of the invention, the inner wall of the limiting clamping cylinder is uniformly provided with ring grooves from top to bottom.
As a preferred scheme of the invention, the clamping mechanism comprises a rotating disc, a track groove, a rubber pad, a guide roller, a clamping block and a rotating plate, wherein the rotating disc is arranged on the inner wall of the lower end of the bottom plate through a bearing, the upper end of the rotating disc is axially provided with the track groove, the rubber pads are arranged on the inner walls of the left end and the right end of the track groove, the rotating roller grooves are symmetrically arranged on the inner walls of the front end and the rear end of the track groove, the guide roller is uniformly arranged between the inner walls of the upper end and the lower end of the rotating roller groove through the bearing along the track of the track groove, the clamping block is connected with the track groove in a sliding mode. The rotating plate is rotated through the rotating plate, the clamping blocks slide inwards through the track of the track groove and the limit of the guide groove so as to be clamped with the clamping grooves, the rubber pads limit the clamping blocks at the two ends of the track groove, and the guide rollers assist the clamping blocks in moving;
as a preferable scheme of the invention, the upper end of the bottom plate is axially provided with a guide groove, and the clamping block is connected with the guide groove in a sliding mode.
The invention has the beneficial effects that:
1. the piston rod is fixed in a double self-locking mode, so that the loss of the piston and the sealing ring is reduced, the service life of the self-locking mechanism is prolonged in the double self-locking mode, and the service life of the cylinder is prolonged through clamping, threaded clamping and triple support of the piston; according to the invention, the tripod clamped at the lower end of the cylinder is arranged, so that the problem that the cylinder is toppled in the use process is prevented, and the potential safety hazard is solved.
2. The threaded rotary drum is connected with the threaded groove through threads, so that the cross rotary frame rotates to upwards contact the piston rod, the slotted rotary drum rotates to enable the locking mechanism to pop out to be clamped with the limiting clamping drum, the air cylinder is double self-locked, the pressure of the piston rod on the piston is reduced through a mode of double fixation of threaded connection and clamping, and the threaded rotary drum, the locking mechanism and the piston are triple fixed, so that the service lives of the piston, the threaded rotary drum and the locking mechanism are prolonged.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 according to the present invention
FIG. 3 is an enlarged view of a portion I of FIG. 2 according to the present invention
FIG. 4 is a schematic view of the tripod of the present invention
FIG. 5 is a cross-sectional view taken along section B-B of FIG. 4 according to the present invention
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
As shown in fig. 1 to 5, the buffer type self-locking cylinder comprises a base 1, a driving cylinder 2, a self-locking unit 3 and a tripod 4, wherein the driving cylinder 2 is arranged at the upper end of the base 1, the self-locking unit 3 is arranged on the outer wall of the driving cylinder 2, and the tripod is connected to the outer wall of the base 1 in a clamping manner; the driving cylinder 2 lifts an object, the self-locking unit 3 locks the piston rod 22 to reduce the pressure of the piston, and the tripod 4 enables the driving cylinder 2 to be more stable during jacking;
the driving cylinder 2 comprises a cylinder body 21, a piston rod 22, a return spring 23, a sealing gasket 24, a lifting seat 25 and a buffer spring 26, wherein the cylinder body 21 is arranged at the upper end of the base 1, the piston rod 22 is connected with the inner wall of the cylinder body 21 in a sliding mode, the return spring 23 is arranged between the inner wall of the lower end of the piston rod 22 and the inner wall of the upper end of the cylinder body 21, the sealing gasket 24 is arranged at the lower end of the piston rod 22, a sliding groove is formed in the upper end of the piston rod 22, the lifting seat 25 is connected with the sliding groove in a sliding mode; the piston rod 22 lifts up the object, the return spring 23 returns the piston rod 22 downwards, the sealing gasket 24 seals the air cavity at the lower end of the cylinder body 21 to increase the air pressure of the air cavity, so that the piston rod 22 is pushed to lift the object upwards, the buffer spring 23 assists the lifting seat 25 to contact the object, and the buffer spring 26 prevents the lifting seat 25 from contacting the object, so that the impact force is too large, and the object is damaged.
The self-locking unit 3 comprises a threaded rotary drum 31, a threaded groove 32, a slotted rotary drum 33, a locking mechanism 34, a cross rotary frame 35 and a limiting clamping cylinder 36, the threaded groove 32 is formed in the outer wall of the cylinder body 21, the threaded rotary drum 31 is connected with the threaded groove 32 in a threaded connection mode, the slotted rotary drum 33 is arranged on the inner wall of the lower end of the threaded rotary drum 31 through a bearing, the locking mechanism 34 is uniformly arranged on the outer wall of the threaded rotary drum 31 along the axial direction, and the cross rotary frame 35 and the limiting clamping cylinder 36 are arranged at the upper end of the threaded rotary drum 31 and are arranged on the outer wall; the inner wall of the limiting clamping cylinder 36 is uniformly provided with ring grooves from top to bottom. The threaded rotary drum 31 is connected with the thread groove 32 through threads, the cross rotary frame 35 rotates to upwards contact the piston rod 22, the slotted rotary drum 33 rotates to enable the locking mechanism 34 to pop out to be clamped with the limiting clamping cylinder 36, the driving cylinder 2 is double-self-locked, the pressure of the piston rod 22 on the piston is reduced through the mode of double fixation of the threaded connection and the clamping, and the service lives of the piston, the threaded rotary drum 31 and the locking mechanism 34 are prolonged through the triple fixation of the threaded rotary drum 31 and the locking mechanism 34 and the piston.
The locking mechanism 34 comprises locking grooves 341, a locking block 342, an auxiliary spring 343 and a limiting groove 344, the locking grooves 341 are uniformly formed in the outer wall of the threaded rotary drum 31 along the axial direction, the locking block 342 is connected with the locking grooves 341 in a sliding mode, the inner end of the locking block 342 is connected with the inner end of the locking grooves 341 through the auxiliary spring 343, and the limiting groove 344 is formed in the outer wall of the grooved rotary drum 33 along the axial direction. The number of the limiting grooves 344 is the same as that of the locking grooves 341, and the limiting grooves 344 are in a V-shaped structure. The auxiliary spring 343 pushes the locking block 342 to move outwards, and when the locking block 342 is aligned with the limiting groove 344, the locking block 342 is ejected outwards and then clamped with the limiting clamping cylinder 36;
the tripod 4 comprises a clamping groove 41, a bottom plate 42, a clamping mechanism 43, a rotating rod 44, a supporting sleeve 45, a telescopic rod 46, a hinge seat 47, a moving ring 48 and a hinge rod 49, the clamping groove 41 is uniformly formed in the outer wall of the base 1 along the axial direction, the clamping mechanism 43 is arranged on the inner wall of the upper end of the bottom plate 42, the rotating rod 44 is uniformly arranged at the lower end of the bottom plate 42 along the axial direction through a bearing seat, the supporting sleeve 45 is arranged in the middle of the lower end of the bottom plate 42, the telescopic rod 46 is arranged on the inner wall of the upper end of the supporting sleeve 45, the hinge seat 47 is arranged at the lower end of the telescopic rod 46, the moving ring 48 is connected with the rotating; the clamping mechanism 43 is connected with the base through the clamping groove 41, and the telescopic rod 46 retracts to drive the hinge rod 49 and the moving ring 48 to open the rotating rod 44 towards the outer end, so that the tripod 4 is opened to fix the driving cylinder 2;
the clamping mechanism 43 comprises a rotating disc 431, a track groove 432, a rubber pad 433, a guide roller 434, a clamping block 435 and a rotating plate 436, wherein the rotating disc 431 is installed on the inner wall of the lower end of the bottom plate 42 through a bearing, the upper end of the rotating disc 431 is axially provided with the track groove 432, the inner walls of the left end and the right end of the track groove 432 are provided with the rubber pad 433, the inner walls of the front end and the rear end of the track groove 432 are symmetrically provided with the rotating roller groove, the guide roller 434 is uniformly arranged between the inner walls of the upper end and the lower end of the rotating roller groove through the bearing along the track of the track groove 432, the clamping block 435 is connected with the track groove 432 in a sliding mode. The upper end of the bottom plate 42 is axially provided with a guide groove, and the clamping block 435 is connected with the guide groove in a sliding mode. The rotating plate 431 is rotated through the rotating plate 436, the clamping block 435 slides inwards through the track of the track groove 432 and the limit of the guide groove, so that the clamping block is clamped with the clamping groove 41, the rubber pad 433 limits the clamping block 435 at two ends of the track groove 432, and the guide roller 434 assists the clamping block 435 to move;
the present invention is not limited to the above-described embodiments, which are described in the specification and illustrated only to illustrate the principle of the present invention, but various changes and modifications may be made within the scope of the present invention as claimed without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a buffering formula auto-lock cylinder, includes base (1), drives actuating cylinder (2), auto-lock unit (3) and tripod (4), its characterized in that: a driving cylinder (2) is arranged at the upper end of the base (1), a self-locking unit (3) is arranged on the outer wall of the driving cylinder (2), and a tripod is connected to the outer wall of the base (1) in a clamping manner;
the driving cylinder (2) comprises a cylinder body (21), a piston rod (22), a return spring (23), a sealing gasket (24), a lifting seat (25) and a buffer spring (26), wherein the cylinder body (21) is arranged at the upper end of the base (1), the piston rod (22) is connected with the inner wall of the cylinder body (21) in a sliding mode, the return spring (23) is arranged between the inner wall of the lower end of the piston rod (22) and the inner wall of the upper end of the cylinder body (21), the sealing gasket (24) is arranged at the lower end of the piston rod (22), a sliding groove is formed in the upper end of the piston rod (22), the lifting seat (25) is connected with the sliding groove in a sliding mode, and the buffer spring;
the self-locking unit (3) comprises a threaded rotary drum (31), threaded grooves (32), a slotted rotary drum (33), a locking mechanism (34), a cross rotary frame (35) and a limiting clamping drum (36), wherein the threaded grooves (32) are formed in the outer wall of the cylinder body (21), the threaded rotary drum (31) is connected with the threaded grooves (32) in a threaded connection mode, the slotted rotary drum (33) is arranged on the inner wall of the lower end of the threaded rotary drum (31) through a bearing, the locking mechanism (34) is uniformly arranged on the outer wall of the threaded rotary drum (31) along the axial direction, the cross rotary frame (35) is arranged at the upper end of the threaded rotary drum (31), and the limiting clamping drum (36) is arranged on the outer wall of the;
the tripod (4) comprises a clamping groove (41), a bottom plate (42), a clamping mechanism (43), a rotating rod (44), a supporting sleeve (45), a telescopic rod (46), a hinging seat (47), a moving ring (48) and a hinging rod (49), base (1) outer wall on evenly seted up joint groove (41) along the axial, be provided with latch mechanism (43) on bottom plate (42) upper end inner wall, bottom plate (42) lower extreme is evenly provided with dwang (44) through the bearing frame along the axial, bottom plate (42) lower extreme middle part is provided with supports cover (45), support and be provided with telescopic link (46) on cover (45) upper end inner wall, telescopic link (46) lower extreme is provided with articulated seat (47), shift ring (48) are connected with dwang (44) through the slip mode, articulated seat (47), be connected through articulated rod (49) between shift ring (48).
2. The buffer type self-locking air cylinder according to claim 1, characterized in that: locking mechanical system (34) including locking groove (341), locking piece (342), auxiliary spring (343) and spacing groove (344), evenly seted up locking groove (341) along the axial on screw thread rotary drum (31) outer wall, locking piece (342) are connected with locking groove (341) through the slip mode, be connected through auxiliary spring (343) between locking piece (342) the inner and the inner wall of locking groove (341), spacing groove (344) have been seted up along the axial on fluting rotary drum (33) outer wall.
3. The buffer type self-locking air cylinder according to claim 2, characterized in that: the number of the limiting grooves (344) is consistent with that of the locking grooves (341), and the limiting grooves (344) are in a V-shaped structure.
4. The buffer type self-locking air cylinder according to claim 1, characterized in that: the inner wall of the limiting clamping cylinder (36) is uniformly provided with ring grooves from top to bottom.
5. The buffer type self-locking air cylinder according to claim 1, characterized in that: clamping mechanism (43) include rolling disc (431), orbit groove (432), rubber pad (433), guide roll (434), joint piece (435) and rotor plate (436), install on bottom plate (42) lower extreme inner wall through the bearing rolling disc (431), orbit groove (432) have been seted up along the axial to rolling disc (431) upper end, be provided with rubber pad (433) on the inner wall at both ends about orbit groove (432), the runner groove has been seted up to the symmetry on the inner wall at both ends around orbit groove (432), guide roll (434) are evenly through the bearing setting between the inner wall of both ends about the runner groove along the orbit of orbit groove (432), joint piece (435) are connected with orbit groove (432) through the slip mode, rotor plate (436) set up at rolling disc (431) left end.
6. The buffer type self-locking air cylinder according to claim 5, characterized in that: the upper end of the bottom plate (42) is provided with a guide groove along the axial direction, and the clamping block (435) is connected with the guide groove in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191515.XA CN111271339A (en) | 2020-03-18 | 2020-03-18 | Buffering formula auto-lock cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191515.XA CN111271339A (en) | 2020-03-18 | 2020-03-18 | Buffering formula auto-lock cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271339A true CN111271339A (en) | 2020-06-12 |
Family
ID=70996263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010191515.XA Withdrawn CN111271339A (en) | 2020-03-18 | 2020-03-18 | Buffering formula auto-lock cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255435A (en) * | 2020-10-11 | 2021-01-22 | 强一半导体（苏州）有限公司 | Buffer structure for amplitude modulation probe card and force storage assembly thereof |
| CN114458652A (en) * | 2022-02-09 | 2022-05-10 | 安徽德鸿机件制造有限公司 | Turnover hydraulic oil cylinder for automobile cab |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050274255A1 (en) * | 2004-06-15 | 2005-12-15 | Hamilton William R | Adjustable ring positioner |
| CN202707673U (en) * | 2012-07-27 | 2013-01-30 | 福建中天建工机械有限公司 | Mechanical locking oil cylinder |
| CN103663246A (en) * | 2012-09-17 | 2014-03-26 | 李志华 | Mechanical self-locking hydraulic jack |
| CN203743123U (en) * | 2014-03-25 | 2014-07-30 | 济南夫驰科技有限公司 | Novel single-action thread air cylinder |
| CN206814192U (en) * | 2017-05-26 | 2017-12-29 | 重庆依能斯新能源开发有限公司 | A kind of Buffer for elevator |
| CN207879754U (en) * | 2018-01-09 | 2018-09-18 | 嘉兴新维液压缸有限公司 | A kind of oil cylinder of double locking |
-
2020
- 2020-03-18 CN CN202010191515.XA patent/CN111271339A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050274255A1 (en) * | 2004-06-15 | 2005-12-15 | Hamilton William R | Adjustable ring positioner |
| CN202707673U (en) * | 2012-07-27 | 2013-01-30 | 福建中天建工机械有限公司 | Mechanical locking oil cylinder |
| CN103663246A (en) * | 2012-09-17 | 2014-03-26 | 李志华 | Mechanical self-locking hydraulic jack |
| CN203743123U (en) * | 2014-03-25 | 2014-07-30 | 济南夫驰科技有限公司 | Novel single-action thread air cylinder |
| CN206814192U (en) * | 2017-05-26 | 2017-12-29 | 重庆依能斯新能源开发有限公司 | A kind of Buffer for elevator |
| CN207879754U (en) * | 2018-01-09 | 2018-09-18 | 嘉兴新维液压缸有限公司 | A kind of oil cylinder of double locking |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255435A (en) * | 2020-10-11 | 2021-01-22 | 强一半导体（苏州）有限公司 | Buffer structure for amplitude modulation probe card and force storage assembly thereof |
| CN114458652A (en) * | 2022-02-09 | 2022-05-10 | 安徽德鸿机件制造有限公司 | Turnover hydraulic oil cylinder for automobile cab |
| CN114458652B (en) * | 2022-02-09 | 2023-10-27 | 安徽德鸿机件制造有限公司 | Overturning hydraulic cylinder for automobile cab |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200612 |