CN103470570A - Hydraulic oil cylinder with sealing hanger - Google Patents
Hydraulic oil cylinder with sealing hanger Download PDFInfo
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- CN103470570A CN103470570A CN 201310423015 CN201310423015A CN103470570A CN 103470570 A CN103470570 A CN 103470570A CN 201310423015 CN201310423015 CN 201310423015 CN 201310423015 A CN201310423015 A CN 201310423015A CN 103470570 A CN103470570 A CN 103470570A
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- suspender
- piston rod
- hanger
- afterbody
- sealing
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Abstract
The invention relates to a hydraulic oil cylinder with a sealing hanger. The hydraulic oil cylinder with the sealing hanger comprises a piston rod and a hanger, wherein the hanger is provided with a tail part and a head part which is connected with a hung object; the tail part is fixedly connected with an extension end of the piston rod; a protective sleeve is sleeved on the outer wall of the extension end of the piston rod which is connected with the tail part, and is fixedly connected with the tail part of the hanger; the inner walls on the two sides of the protective sleeve are provided with O-shaped seal rings respectively. According to the hydraulic oil cylinder with the sealing hanger, the protective sleeve is fixedly connected with the tail part of the hanger, and one O-shaped seal ring is arranged on each of the two sides of the protective sleeve respectively, so that rainwater can be prevented from entering the junction of the hanger and the piston rod in two directions, and the corrosion is avoided, thereby guaranteeing the quality, reducing the cost and improving the enterprise benefit.
Description
Technical field
The present invention relates to a kind of hydraulic jack, relate in particular to a kind of hydraulic jack with sealing suspender.
Background technique
In recent years, hydraulic hoist has obtained application more and more widely in hydraulic engineering, so be also more and more higher to the requirement of hydraulic jack, waterproof requirement is also like this.Gate on water conservancy follows the hydraulic hoist suspender to be connected by gate lifting eye, so the waterproof sealing of suspender is particularly important.Hydraulic jack is by upper and lower cover, cylinder body, and piston, piston rod, several large parts such as suspender form.Piston rod adopts and is threaded with suspender, and the waterproof of connection part certainly will be very important, once because water enters the suspender joint, will corrode screw thread, screw thread is got rusty, will reduction of service life, also can give later maintenance and change seal ring and bring unnecessary trouble.Traditional waterproof sealing scheme can from find out in the sealing ssembly drawing of Fig. 1, O shape circle is contained on piston rod, certainly will increase the length of piston rod like this, processing request to the suspender endoporus has also improved, and the seal action of O type circle is also very single herein, can only be sealed its right side one end.
Summary of the invention
The technical problem to be solved in the present invention is: cause and get rusty for the joint that solves extraneous rain erosion suspender, the problem of reduction of service life, the invention provides a kind of hydraulic jack with sealing suspender and solve the problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hydraulic jack with sealing suspender; comprise piston rod and suspender; described suspender has afterbody and the head be connected with suspended object; described afterbody is fixedly connected with the external part of piston rod; be socketed with protecting jacket on the outer wall of the external part of the piston rod be connected with afterbody; described protecting jacket is fixedly connected with the afterbody of suspender, on the inwall of described protecting jacket both sides, is respectively arranged with O-ring seals.Be socketed with protecting jacket on the external part outer wall of piston rod, piston rod and the structure of hanging head are not exerted an influence, be more prone to realize, O-ring seals is set respectively on the inwall of protecting jacket both sides, can stop rainwater to enter from both sides.
For the afterbody of realizing suspender and the external part of piston rod are fixedly connected with, specifically, the afterbody of described suspender has internal thread, and the external part of described piston rod has the outside thread with screw-internal thread fit, and the afterbody of described suspender is fixedly connected with by screw thread with the external part of piston rod.
Specifically, described protecting jacket is fixedly connected with the afterbody of suspender by bolt.
The invention has the beneficial effects as follows; the present invention adopts protecting jacket to be fixedly connected with the suspender afterbody; the both sides of protecting jacket arrange respectively O-ring seals one; can on both direction, stop like this rainwater to enter suspender and piston rod joint; avoided erosion; thereby guaranteed quality, also reduced cost, improved the performance of enterprises.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the hydraulic jack sealing suspender that the present invention is traditional,
Fig. 2 is the structural representation that the present invention has the optimum embodiment of hydraulic jack of sealing suspender,
Fig. 3 is the structural representation that the present invention has protecting jacket on the hydraulic jack that seals suspender.
In figure 1, piston rod, 2, suspender, 3, protecting jacket, 4, O-ring seals.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 2, the present invention has the hydraulic jack of sealing suspender, comprises piston rod 1, suspender 2, protecting jacket 3 and O-ring seals 4.See from the graph protecting jacket 3 on 3: respectively process groove one on the inwall of the both sides of protecting jacket 3, be used for respectively filling O-ring seals 4, realize respectively end face seal and rod seal, the endoporus of protecting jacket 3 matches with piston rod 1.First the external part of piston rod 1 is screwed in to the internal thread of suspender 2 afterbodys in the time of assembling, then by screw, protecting jacket 3 and suspender 2 afterbodys are fixed, screw should be coated waterproof gasket cement before assembling.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (3)
1. one kind has the hydraulic jack that seals suspender; it is characterized in that: comprise piston rod (1) and suspender (2); described suspender (2) has afterbody and the head be connected with suspended object; described afterbody is fixedly connected with the external part of piston rod (1); be socketed with protecting jacket (3) on the outer wall of the external part of the piston rod be connected with afterbody (1); described protecting jacket (3) is fixedly connected with the afterbody of suspender (2), on the inwall of described protecting jacket (3) both sides, is respectively arranged with O-ring seals (4).
As claimed in claim 1 have the sealing suspender hydraulic jack, it is characterized in that: the afterbody of described suspender (2) has internal thread, the external part of described piston rod (1) has the outside thread with screw-internal thread fit, and the afterbody of described suspender (2) is fixedly connected with by screw thread with the external part of piston rod (1).
As claimed in claim 1 have the sealing suspender hydraulic jack, it is characterized in that: described protecting jacket (3) is fixedly connected with the afterbody of suspender (2) by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310423015 CN103470570A (en) | 2013-09-17 | 2013-09-17 | Hydraulic oil cylinder with sealing hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310423015 CN103470570A (en) | 2013-09-17 | 2013-09-17 | Hydraulic oil cylinder with sealing hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103470570A true CN103470570A (en) | 2013-12-25 |
Family
ID=49795561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310423015 Pending CN103470570A (en) | 2013-09-17 | 2013-09-17 | Hydraulic oil cylinder with sealing hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090166A (en) * | 2015-09-06 | 2015-11-25 | 常州液压成套设备厂有限公司 | Hydraulic cylinder with novel seal sleeve |
| CN105156401A (en) * | 2015-09-18 | 2015-12-16 | 常州液压成套设备厂有限公司 | Compact connecting device for hydraulic hoist |
| CN106049375A (en) * | 2016-07-07 | 2016-10-26 | 常州液压成套设备厂有限公司 | Waterproof antifouling hydraulic hoist |
-
2013
- 2013-09-17 CN CN 201310423015 patent/CN103470570A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090166A (en) * | 2015-09-06 | 2015-11-25 | 常州液压成套设备厂有限公司 | Hydraulic cylinder with novel seal sleeve |
| CN105156401A (en) * | 2015-09-18 | 2015-12-16 | 常州液压成套设备厂有限公司 | Compact connecting device for hydraulic hoist |
| CN105156401B (en) * | 2015-09-18 | 2017-09-19 | 常州液压成套设备厂有限公司 | Hydraulic headstock gear compact attachment means |
| CN106049375A (en) * | 2016-07-07 | 2016-10-26 | 常州液压成套设备厂有限公司 | Waterproof antifouling hydraulic hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |