CN210065054U - Safe hydraulic lifting device - Google Patents
Safe hydraulic lifting device Download PDFInfo
- Publication number
- CN210065054U CN210065054U CN201920974774.2U CN201920974774U CN210065054U CN 210065054 U CN210065054 U CN 210065054U CN 201920974774 U CN201920974774 U CN 201920974774U CN 210065054 U CN210065054 U CN 210065054U
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- CN
- China
- Prior art keywords
- lifting device
- hydraulic lifting
- rack
- supporting
- rod
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- Expired - Fee Related
Links
- 230000003028 elevating effect Effects 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 7
- 241000447495 Equulites leuciscus Species 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the field of hydraulic technology, a safe hydraulic pressure elevating gear is disclosed, including the bottom plate, both sides are equipped with the spout around the bottom plate upper surface, spout left and right sides sliding connection supporting shoe, and supporting shoe upper portion is rotated and is connected first bracing piece, controls two first bracing piece junction is rotated and is connected first axis of rotation, and the second axis of rotation is connected in the rotation of first bracing piece upper end, and second axis of rotation upper portion is rotated and is connected the second bracing piece, two around be equipped with the push rod between the second bracing piece lower part, the piston rod of connecting the pneumatic cylinder is rotated to the push rod, and the pneumatic cylinder bottom is rotated and is connected. The utility model is suitable for a hydraulic pressure elevating gear, through the mutual motion that sets up gag lever post and rack to make the supporting shoe can only slide in the spout along fixed direction, lead to the lifter plate can only the rebound, very big improvement whole elevating gear's security, prevented dropping suddenly of lifter plate, protected operating personnel's safety, suitable using widely.
Description
Technical Field
The utility model relates to the field of hydraulic technology, specifically a safe hydraulic pressure elevating gear.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.
Chinese patent (publication number: CN 205556005U) discloses a hydraulic lifting device, which comprises a mobile platform, a limiting rod, a hydraulic system and a lifting platform; the upper part of the limiting rod vertically penetrates through four holes of the lifting platform; the top end of a lifting rod of the hydraulic system is connected with the lifting platform; the executing element of the hydraulic system is a hydraulic cylinder; be provided with the ring channel in the pneumatic cylinder on the piston wall, set up the sealing ring in the ring channel, the sealing ring sets up two-layerly from inside to outside, the end to end connection portion of sealing ring is the concave convex platform of each other lock joint together, the device only relies on a pneumatic cylinder to provide the power of going up and down, but the condition of sealing member oil leak can appear when using in the pneumatic cylinder, the inside oil pressure of pneumatic cylinder reduces rapidly this moment, can lead to the article of elevating gear upper portion to fall down fast, thereby cause the danger of article damage, operating personnel can be injure by a crashing object under the serious condition, consequently, need set up safety.
SUMMERY OF THE UTILITY MODEL
The utility model provides a safe hydraulic pressure elevating gear has solved the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a safe hydraulic pressure elevating gear, includes the bottom plate, both sides are equipped with the spout around the bottom plate upper surface, and the spout left and right sides sliding connection supporting shoe, supporting shoe upper portion rotate connect first bracing piece, control two first bracing piece junction rotates and connects first axis of rotation, and first bracing piece upper end rotates and connects the second axis of rotation, and second axis of rotation upper portion rotates and connects the second bracing piece, two around be equipped with the push rod between the second bracing piece lower part, the piston rod of push rod rotation connection pneumatic cylinder, and the pneumatic cylinder bottom rotates and connects the rotation seat, rotates seat fixed connection bottom plate upper surface, and second bracing piece upper end rotates and connects the kicking block, kicking block sliding connection lifter lower surface, the rack at the spout bottom is established to supporting shoe middle part sliding connection gag lever post, gag lever.
As an optimal technical scheme of the utility model, the gag lever post top is equipped with the stopper.
As a preferred technical scheme of the utility model, stopper bottom fixed connection extension spring, extension spring bottom fixed connection supporting shoe upper portion.
As the utility model discloses a preferred technical scheme, the left side limit of the tooth on rack right side is the right angle limit, the right side limit of the tooth on rack right side is the hypotenuse.
As an optimized technical scheme of the utility model, the rack left and right sides shape symmetry.
As an optimal technical scheme of the utility model, right side gag lever post lower extreme left side is the hypotenuse, the right side gag lever post lower extreme right side is the right angle limit.
As an optimized technical scheme of the utility model, the left and right sides gag lever post lower extreme symmetry each other.
As an optimal technical scheme of the utility model, the supporting shoe bottom is equipped with the slip mouth, and the cross sectional dimension of slip mouth is greater than the cross sectional dimension of rack.
As an optimized technical scheme of the utility model, bottom plate upper portion is equipped with two pneumatic cylinders.
The utility model discloses have following useful part:
the utility model is suitable for a hydraulic pressure elevating gear, through the mutual motion that sets up gag lever post and rack to make the supporting shoe can only slide in the spout along fixed direction, lead to the lifter plate can only the rebound, need pull-up the gag lever post when needs lapse lifter plate, very big improvement whole elevating gear's security, prevented dropping suddenly of lifter plate, protected operating personnel's safety, suitable using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a safety hydraulic lifting device.
Fig. 2 is a front view of a safety hydraulic lifting device.
Fig. 3 is a schematic structural view of a joint between a right support block and a chute in a safety hydraulic lifting device.
Fig. 4 is a cross-sectional view a-a of fig. 3.
In the figure: 1. a base plate; 2. a support block; 3. a chute; 4. a first support bar; 5. a first rotating shaft; 6. a second rotating shaft; 7. a second support bar; 8. a push rod; 9. a top block; 10. a lifting plate; 11. a rotating seat; 12. a hydraulic cylinder; 13. a rack; 14. a sliding port; 15. a limiting rod; 16. a tension spring; 17. and a limiting block.
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.
Example one
Referring to fig. 1-4, a safety hydraulic lifting device comprises a bottom plate 1, sliding grooves 3 are formed in the front and rear sides of the upper surface of the bottom plate 1, supporting blocks 2 are slidably connected to the left and right sides of the sliding grooves 3, the upper portions of the supporting blocks 2 are rotatably connected to first supporting rods 4, the joint of the left and right first supporting rods 4 is rotatably connected to a first rotating shaft 5, the upper end of the first supporting rod 4 is rotatably connected to a second rotating shaft 6, the upper portion of the second rotating shaft 6 is rotatably connected to a second supporting rod 7, a push rod 8 is arranged between the lower portions of the front and rear second supporting rods 7, the push rod 8 is rotatably connected to a piston rod of a hydraulic cylinder 12, the bottom of the hydraulic cylinder 12 is rotatably connected to a rotating base 11, the rotating base 11 is fixedly connected to the upper surface of the bottom plate 1, the upper end of the second supporting rod 7 is rotatably connected to a top block 9, the, stopper 17 bottom fixed connection extension spring 16, extension spring 16 bottom fixed connection supporting shoe 2 upper portions, rack 13 in 3 bottoms of spout is established to 15 lower extreme joints of gag lever post, and 2 bottoms of supporting shoe are equipped with slip mouth 14, and the cross sectional dimension of slip mouth 14 is greater than the cross sectional dimension of rack 13 to make rack 13 can pass inside slip mouth 14, thereby make supporting shoe 2 can be normal move about in spout 3, the left side of the tooth on rack 13 right side is the right-angle side, the right side of the tooth on rack 13 right side is the hypotenuse, and rack 13 left and right sides shape symmetry, right side 15 lower extreme left sides of gag lever post are hypotenuse, right side 15 lower extreme right sides of gag lever post are right-angle side, the mutual symmetry of left and right sides gag lever post 15 lower extreme.
Example two
Referring to fig. 1, the other contents of the present embodiment are the same as those of the first embodiment, except that: two hydraulic cylinders 12 are arranged at the upper part of the bottom plate 1. When an oil leak occurs to one hydraulic cylinder 12, although the device is provided with a limiting device, the height of the lifting plate 10 cannot fall, but the height of the lifting plate 10 cannot be continuously lifted at the moment, so that the normal use is influenced, therefore, the two hydraulic cylinders 12 are arranged on the upper part of the bottom plate 1, the two hydraulic cylinders 12 are started simultaneously, when the oil leak occurs to the sealing element of one hydraulic cylinder 12, the thrust of the hydraulic cylinder 12 is rapidly reduced, at the moment, the other hydraulic cylinder 12 can still jack up the lifting plate 10 to complete the whole lifting work, and therefore the safety and the reliability of the whole device are greatly improved.
In the implementation process of the utility model, firstly, the bottom plate 1 is fixed on the ground, the bottom plate 1 can be fixed with the ground through fixing means such as expansion screws, the article to be lifted is placed on the lifting plate 10, at the moment, the hydraulic cylinder 12 is started, the push rod 8 is continuously jacked upwards by the hydraulic cylinder 12, so that the first supporting rod 4 and the second supporting rod 7 rotate mutually between two pairs, the lifting plate 10 moves upwards to complete the lifting work, at the moment, the two supporting blocks 2 at the bottom move close to each other along the sliding groove 3, when the supporting blocks 2 slide in the sliding groove 3, the limiting rod 15 is contacted with the rack 13, the inclined plane of the limiting rod 15 is continuously contacted with the inclined plane of the rack 13, so that the limiting rod 15 is continuously jacked up, thereby the mutual displacement of the two parts is completed, when the sealing element of the hydraulic cylinder 12 leaks oil, the lifting plate 10 slides, the supporting block 2 slides to two sides along the sliding groove 3, at the moment, the right-angle edge at the lower end of the limiting rod 15 is in contact with the right-angle edge of the rack 13, so that the limiting rod 15 and the rack 13 are clamped, so that the supporting block 2 is clamped in the sliding groove 3, at the moment, the lifting plate 10 stops sliding, when the lifting plate 10 needs to be lowered, only the limiting rod 15 needs to be pulled upwards, at the moment, the limiting rod 15 is separated from the rack 13, under the action of gravity or the hydraulic cylinder 12, the lifting plate 10 slowly descends, when the limiting rod 15 is loosened, under the action of the tension spring 16, the rack 13 is clamped by the limiting rod 15, and the lifting plate 10 is fixed at the height; the utility model is suitable for a hydraulic pressure elevating gear, through the mutual motion that sets up gag lever post 15 and rack 13 to make supporting shoe 2 can only slide in spout 3 along fixed direction, lead to lifter plate 10 can only the rebound, need pull up gag lever post 15 when needs rebound lifter plate 10, very big improvement whole elevating gear's security, prevented dropping suddenly of lifter plate 10, protected operating personnel's safety, suitable using widely.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A safe hydraulic lifting device comprises a bottom plate (1), sliding grooves (3) are formed in the front and rear sides of the upper surface of the bottom plate (1), and the sliding grooves (3) are connected with supporting blocks (2) in a sliding mode on the left side and the right side of the sliding grooves (3), and is characterized in that the upper portions of the supporting blocks (2) are rotatably connected with first supporting rods (4), the joint of the first supporting rods (4) on the left side and the right side is rotatably connected with a first rotating shaft (5), the upper end of each first supporting rod (4) is rotatably connected with a second rotating shaft (6), the upper portion of each second rotating shaft (6) is rotatably connected with a second supporting rod (7), a push rod (8) is arranged between the lower portions of the front supporting rod and the rear supporting rod (7), the push rod (8) is rotatably connected with a piston rod of a hydraulic cylinder (12), the bottom of the hydraulic cylinder (12) is rotatably connected with a, ejector pad (9) sliding connection lifter plate (10) lower surface, supporting shoe (2) middle part sliding connection gag lever post (15), rack (13) in spout (3) bottom are established to gag lever post (15) lower extreme joint.
2. A safety hydraulic lifting device according to claim 1, characterized in that the top end of the limiting rod (15) is provided with a limiting block (17).
3. A safety hydraulic lifting device according to claim 2, characterized in that the bottom of the limiting block (17) is fixedly connected with a tension spring (16), and the bottom of the tension spring (16) is fixedly connected with the upper part of the supporting block (2).
4. A safety hydraulic lifting device according to claim 1, characterized in that the left side of the teeth on the right side of the rack (13) is a square and the right side of the teeth on the right side of the rack (13) is a bevelled side.
5. A safety hydraulic lifting device according to claim 4 characterised in that the rack (13) is symmetrical in shape on both sides.
6. A safety hydraulic lifting device according to claim 1 or 4, characterized in that the left side of the lower end of the right side limiting rod (15) is a bevel edge, and the right side of the lower end of the right side limiting rod (15) is a right-angle edge.
7. A safety hydraulic lifting device according to claim 6 characterised in that the lower ends of the two side stop rods (15) are symmetrical to each other.
8. A safety hydraulic lifting device according to claim 1, characterized in that the support block (2) is provided at its bottom with a sliding opening (14), the sliding opening (14) having a cross-sectional dimension larger than the cross-sectional dimension of the rack (13).
9. A safety hydraulic lifting device according to claim 1, characterized in that two hydraulic cylinders (12) are provided in the upper part of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920974774.2U CN210065054U (en) | 2019-06-26 | 2019-06-26 | Safe hydraulic lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920974774.2U CN210065054U (en) | 2019-06-26 | 2019-06-26 | Safe hydraulic lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210065054U true CN210065054U (en) | 2020-02-14 |
Family
ID=69428865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920974774.2U Expired - Fee Related CN210065054U (en) | 2019-06-26 | 2019-06-26 | Safe hydraulic lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210065054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762720A (en) * | 2020-07-08 | 2020-10-13 | 胡林生 | Hydraulic lifting cargo transporting device |
| CN113579898A (en) * | 2021-08-05 | 2021-11-02 | 安徽索立德铸业有限公司 | Polishing device for precision casting and positioning and clamping mechanism thereof |
-
2019
- 2019-06-26 CN CN201920974774.2U patent/CN210065054U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762720A (en) * | 2020-07-08 | 2020-10-13 | 胡林生 | Hydraulic lifting cargo transporting device |
| CN113579898A (en) * | 2021-08-05 | 2021-11-02 | 安徽索立德铸业有限公司 | Polishing device for precision casting and positioning and clamping mechanism thereof |
| CN113579898B (en) * | 2021-08-05 | 2023-05-23 | 安徽索立德铸业有限公司 | Polishing device for precision casting and positioning and clamping mechanism thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |