CN214087488U - Movable large-tonnage hydraulic jack - Google Patents
Movable large-tonnage hydraulic jack Download PDFInfo
- Publication number
- CN214087488U CN214087488U CN202023267582.XU CN202023267582U CN214087488U CN 214087488 U CN214087488 U CN 214087488U CN 202023267582 U CN202023267582 U CN 202023267582U CN 214087488 U CN214087488 U CN 214087488U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder body
- protective
- piston rod
- seat
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a movable large-tonnage hydraulic jack, which comprises a cylinder body and a cylinder seat, wherein the cylinder seat is connected with the bottom of the cylinder body, the bottom of the cylinder seat is connected with a lower connecting handle, and the lower connecting handle is provided with a connecting hole; the top of the cylinder body is connected with a cylinder cover, the piston is arranged in the cylinder body, the lower end of the piston rod is fixedly connected with the piston, and the upper end of the piston rod penetrates through the cylinder cover to extend out of the cylinder body; the upper end of the piston rod is provided with a flange connecting seat, the center of the flange connecting seat is provided with a positioning groove, the lower end of the upper connecting handle is clamped in the positioning groove, the flange connecting seat is connected with a fixed cover plate, the fixed cover plate and the flange connecting seat are provided with through holes, and bolts for fixing are arranged in the through holes in a penetrating manner; the protective cylinder is composed of two semicircular protective plates, connecting lugs are arranged at two ends of each protective plate, and the two protective plates are fixedly connected through the connecting lugs; the bottom of cylinder body is located to the protective barrel cover. Go up the connecting handle and pass through fixed cover plate with the piston rod and be connected, the bolt on the fixed cover plate inefficacy damage back alone change can, greatly reduced the maintenance degree of difficulty.
Description
Technical Field
The utility model belongs to the technical field of hydraulic equipment, concretely relates to portable large-tonnage hydraulic jack.
Background
The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, has the characteristics of simple structure and reliable work, can omit a speed reducer when realizing the reciprocating motion, has no transmission clearance and moves stably, so the hydraulic cylinder is widely applied to various mechanical hydraulic systems, the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference between the two sides of the piston, the structural forms of the hydraulic cylinder are various, and the classification methods of the hydraulic cylinder are also various, such as the hydraulic cylinder can be divided into a linear reciprocating motion type and a rotary swinging type according to the motion mode; the hydraulic pressure can be divided into single-acting type and double-acting type.
The head of the hydraulic cylinder is an important part connected with other devices, and impact load and vibration are often received during the use process. Most of cylinder heads of the existing hydraulic cylinders are connected by threads, so that the hydraulic cylinders are easy to damage in impact, lead to thread slipping failure and are difficult to maintain. In addition, when the hydraulic cylinder is used, the pressure and the stress at the bottom are concentrated, and the hydraulic cylinder is easy to damage due to collision, so that the service life of the hydraulic cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a portable large-tonnage hydraulic jack, aim at solves above-mentioned technical problem.
Therefore, the utility model adopts the following technical scheme:
a movable large-tonnage hydraulic jack comprises a cylinder body, a piston, an oil piston rod, a cylinder head, a cylinder seat and a protective cylinder; the cylinder base is connected to the bottom of the cylinder body, the bottom of the cylinder base is connected with a lower connecting handle, and a connecting hole is formed in the lower connecting handle;
the top of the cylinder body is connected with a cylinder cover, the piston is arranged in the cylinder body, the lower end of the piston rod is fixedly connected with the piston, and the upper end of the piston rod penetrates through the cylinder cover to extend out of the cylinder body; the upper end of the piston rod is provided with a flange connecting seat, the center of the flange connecting seat is provided with a positioning groove, the lower end of the upper connecting handle is clamped in the positioning groove, the flange connecting seat is connected with a fixed cover plate, the fixed cover plate and the flange connecting seat are provided with through holes, and bolts for fixing are arranged in the through holes in a penetrating manner;
the protective cylinder is composed of two semicircular protective plates, connecting lugs are arranged at two ends of each protective plate, and the two protective plates are fixedly connected through the connecting lugs; the bottom of cylinder body is located to the protective barrel cover.
Furthermore, the lower end of the upper connecting handle is also in a flange shape, and the upper connecting handle is clamped in the fixed cover plate.
Further, a rubber sheet is padded between the protective cylinder and the cylinder body.
Furthermore, gaps are arranged on the rubber sheets and the protective plate and used for penetrating through the oil injection port.
The beneficial effects of the utility model reside in that: the upper connecting handle is connected with the piston rod through the fixed cover plate, and the bolt on the fixed cover plate can be replaced independently after being out of work and damaged, so that the maintenance difficulty is greatly reduced; the protective cylinder of cylinder body bottom can play the guard action, reduces the impaired risk of cylinder body, helps prolonging the life of pneumatic cylinder.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a schematic view of the connection of the fixing cover plate of the present invention;
FIG. 3 is a top view of the protective cylinder of the present invention;
in the figure: 1-cylinder body, 2-cylinder seat, 3-lower connecting handle, 31-connecting hole, 4-piston, 5-piston rod, 51-flange connecting seat, 52-positioning groove, 6-cylinder cover, 7-upper connecting handle, 8-fixing cover plate, 81-trapezoidal groove, 9-protective cylinder, 91-protective plate, 92-connecting lug and 93-rubber sheet.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, a mobile large-tonnage hydraulic jack comprises a cylinder body 1, a piston 4, an oil piston rod 5, a cylinder head, a cylinder base 2 and a protective cylinder 9.
The cylinder body 1 is a cylindrical hollow pipe, and the upper end and the lower end of the cylinder body are both open. The cylinder base 2 is connected to the bottom of the cylinder body 1 and used for sealing the lower end of the cylinder body 1, the bottom of the cylinder base 2 is fixedly connected with a lower connecting handle 3, and a connecting hole 31 is formed in the lower connecting handle 3 and can be hinged with other devices through the connecting hole 31. The top of the cylinder body 1 is connected with a cylinder cover 6, a through hole is formed in the center of the cylinder cover 6, the piston 4 is arranged in the cylinder body 1, the lower end of the piston rod 5 is fixedly connected with the piston 4, the upper end of the piston rod penetrates through the cylinder cover 6 to extend out of the cylinder body 1, and a plurality of sealing assemblies are further arranged in the cylinder body 1 and used for sealing the piston 4 and the piston rod 5. Further, the upper and lower portions of the cylinder block 1 are provided with oil injection ports, respectively.
As shown in fig. 2, the upper end of the piston rod 5 is a flange connecting seat 51, a circular positioning groove 52 is arranged in the center of the flange connecting seat 51, the lower end of the upper connecting handle 7 is clamped in the positioning groove 52, the upper connecting handle 7 and the piston rod 5 are coaxially arranged, and the upper connecting handle 7 is provided with a corresponding connecting hole 31. The flange connecting seat 51 is connected with a fixed cover plate 8, a trapezoidal groove 81 is arranged in the fixed cover plate 8, the lower end of the upper connecting handle 7 is also in a flange shape, and the trapezoidal groove 81 is used for clamping and fixing the flange of the upper connecting handle 7. Through holes are formed in the peripheries of the fixed cover plate 8 and the flange connecting seat 51, and bolts for fixing penetrate through the through holes.
As shown in fig. 3. The bottom of cylinder body 1 is located to the cover of protection section of thick bamboo 9, and protection section of thick bamboo 9 comprises two semicircular backplate 91, and the both ends of backplate 91 are equipped with engaging lug 92, and two backplate 91 pass through engaging lug 92 fixed connection, still pad lining has the sheet rubber 93 between protection section of thick bamboo 9 and the cylinder body 1. In order to prevent the protective cylinder 9 from shielding the oil injection port at the lower part of the cylinder body 1, the rubber sheet 93 and the protective plate 91 are provided with notches, and the oil injection port can penetrate out of the notches.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (4)
1. A movable large-tonnage hydraulic jack is characterized by comprising a cylinder body, a piston, an oil piston rod, a cylinder head, a cylinder seat and a protective cylinder; the cylinder base is connected to the bottom of the cylinder body, the bottom of the cylinder base is connected with a lower connecting handle, and a connecting hole is formed in the lower connecting handle;
the top of the cylinder body is connected with a cylinder cover, the piston is arranged in the cylinder body, the lower end of the piston rod is fixedly connected with the piston, and the upper end of the piston rod penetrates through the cylinder cover to extend out of the cylinder body; the upper end of the piston rod is provided with a flange connecting seat, the center of the flange connecting seat is provided with a positioning groove, the lower end of the upper connecting handle is clamped in the positioning groove, the flange connecting seat is connected with a fixed cover plate, the fixed cover plate and the flange connecting seat are provided with through holes, and bolts for fixing are arranged in the through holes in a penetrating manner;
the protective cylinder is composed of two semicircular protective plates, connecting lugs are arranged at two ends of each protective plate, and the two protective plates are fixedly connected through the connecting lugs; the bottom of cylinder body is located to the protective barrel cover.
2. The mobile large-tonnage hydraulic jack as set forth in claim 1, wherein the lower end of the upper connecting shank is also flanged and the upper connecting shank is engaged in the fixed cover plate.
3. The mobile large-tonnage hydraulic jack of claim 1, wherein a rubber sheet is further padded between the guard cylinder and the cylinder.
4. The mobile large-tonnage hydraulic jack of claim 3, wherein the rubber sheet and the guard plate are provided with a gap for passing through the oil injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267582.XU CN214087488U (en) | 2020-12-30 | 2020-12-30 | Movable large-tonnage hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023267582.XU CN214087488U (en) | 2020-12-30 | 2020-12-30 | Movable large-tonnage hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214087488U true CN214087488U (en) | 2021-08-31 |
Family
ID=77435105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023267582.XU Active CN214087488U (en) | 2020-12-30 | 2020-12-30 | Movable large-tonnage hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214087488U (en) |
-
2020
- 2020-12-30 CN CN202023267582.XU patent/CN214087488U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214087488U (en) | Movable large-tonnage hydraulic jack | |
| CN213144940U (en) | Variable-amplitude telescopic oil cylinder with protective sleeve | |
| CN202673194U (en) | Rat hole clamping device for petroleum drilling machine | |
| CN212248236U (en) | Hydraulic hammer with protective structure | |
| CN111960301B (en) | Crane telescopic boom sliding guide assembly | |
| CN201900436U (en) | Hydraulic balance press-mounting clamp | |
| CN212269285U (en) | Telescopic arm sliding guide assembly of crane | |
| CN212315250U (en) | Accidental falling protection device for high-rise elevator | |
| CN210193133U (en) | Elevator welding type fag end subassembly | |
| CN210766765U (en) | Hammer core of hydraulic pile hammer and lifting mechanism thereof | |
| CN202237988U (en) | Hinged cubic apparatus hydraulic press protector | |
| CN202730762U (en) | Pile gripper special for concrete pre-cast pile | |
| CN221170206U (en) | Combined type hydraulic cylinder piston rod | |
| CN212441330U (en) | Hydraulic hammer anti-impact device | |
| CN208900449U (en) | A kind of oil cylinder with anti-device of trembling | |
| CN221482301U (en) | Sealed heat-insulating hydraulic cylinder | |
| CN216199479U (en) | High-efficient pneumatic cylinder of stabilizing | |
| CN216241180U (en) | Piston rod with long service life for gas compressor | |
| CN216110664U (en) | Injection head clamping device | |
| CN212248237U (en) | Hydraulic hammer with protective structure | |
| CN105072733A (en) | Ferroalloy electric furnace electrode internal contracting brake apparatus | |
| CN212706583U (en) | Double-synchronous three-stage hydraulic stretcher | |
| CN202100640U (en) | X-shaped steel wire isolator | |
| CN214351265U (en) | Combined ram droop compensation device | |
| CN217254256U (en) | Quick assembly disassembly tool of car steel sheet bush |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |