CN220956270U - Hydraulic cylinder with good sealing effect - Google Patents
Hydraulic cylinder with good sealing effect Download PDFInfo
- Publication number
- CN220956270U CN220956270U CN202322799645.3U CN202322799645U CN220956270U CN 220956270 U CN220956270 U CN 220956270U CN 202322799645 U CN202322799645 U CN 202322799645U CN 220956270 U CN220956270 U CN 220956270U
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- cylinder
- side wall
- piston rod
- hydraulic cylinder
- fixedly connected
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- 238000007789 sealing Methods 0.000 title claims abstract description 58
- 230000000694 effects Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a hydraulic cylinder with good sealing effect, which relates to the field of hydraulic cylinders, and comprises a cylinder, wherein a piston rod is connected to the cylinder in a sliding way, a plug connector is fixedly connected to the outer side wall of the upper end of the cylinder, the plug connector is arranged in a square bump shape, a sliding cavity is formed in the inner side wall of the plug connector, and a sealing effect rubber sealing ring is arranged at the joint of the cylinder and a piston rod, so that the sealing effect of the rubber sealing ring can be realized when the hydraulic cylinder is used, even if the sealing ring in the joint of the cylinder and the piston rod is damaged, the rubber sealing ring can seal the cylinder, hydraulic oil can not leak, meanwhile, scraping on the surface of the piston rod can be realized when the piston rod moves up and down, and abrasion of dust and other impurities remained on the surface of the piston rod to the rubber sealing ring or the sealing mechanism in the cylinder can be avoided, and the sealing effect of the whole cylinder is ensured.
Description
Technical Field
The utility model relates to the field of hydraulic cylinders, in particular to a hydraulic cylinder with a good sealing effect.
Background
The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), and has simple structure and reliable operation. When the device is used for realizing reciprocating motion, a speed reducing device can be omitted, a transmission gap is avoided, and the motion is stable, so that the device is widely applied to hydraulic systems of various machines, and the output force of a hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference on two sides of the piston; the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device are necessary for other devices depending on the specific application.
When the sealing mechanism arranged at the external connection part of the existing hydraulic oil cylinder is used for a long time, if the surface of the piston rod is provided with rust or dust and other sundries, friction is caused to the sealing ring inside the sealing mechanism when the sealing mechanism is retracted into the oil cylinder, so that the sealing effect of the sealing ring is affected, and the existing sealing ring is usually arranged inside the oil cylinder and is difficult to replace once damaged.
Disclosure of utility model
In order to make up for the defects, the utility model provides the hydraulic cylinder with good sealing effect, and aims to solve the problems that the existing hydraulic cylinder is difficult to replace and easy to damage.
The utility model is realized in the following way:
the utility model provides a hydraulic oil cylinder with good sealing effect, which comprises an oil cylinder, wherein a piston rod is connected onto the oil cylinder in a sliding way, a plug connector is fixedly connected onto the outer side wall of the upper end of the oil cylinder, the plug connector is in a square bump arrangement, a sliding cavity is formed in the inner side wall of the plug connector, an ejection self-locking piece is connected onto the inner side wall of the sliding cavity in a sliding way, the contact end of the ejection self-locking piece is in a beveling way, a reset spring is fixedly connected onto the outer side wall of the lower end of the ejection self-locking piece, one end of the reset spring, which is far away from the ejection self-locking piece, is fixedly connected onto the inner side wall of the sliding cavity, and a sealing mechanism is arranged on the piston rod.
Preferably, the sealing mechanism comprises a rubber sealing ring arranged on the piston rod, and both sides of the rubber sealing ring are fixedly connected with mounting pieces.
Preferably, the inner side wall of the mounting piece is provided with a slot corresponding to the plug connector, and the inner side wall of the slot is provided with a fixed bayonet.
Preferably, a sliding groove is formed in the top of the mounting piece, and the inner side wall of the sliding groove is connected with the driving piece in a sliding manner.
Preferably, the outer side wall of the driving piece is fixedly connected with an extrusion spring, and one end of the extrusion spring, which is far away from the driving piece, is fixedly connected to the inner side wall of the sliding groove.
Preferably, the outer side wall of the driving piece is fixedly connected with a scraper, and the scraper is arranged in a semi-annular shape.
The beneficial effects of the utility model are as follows:
Through the rubber seal who is provided with sealed effect in the junction of hydro-cylinder and piston rod, can realize when using, even the hydro-cylinder takes place to damage with the inside sealing washer of piston rod junction, rubber seal also can seal it, guarantee that hydraulic oil can not take place to reveal, simultaneously through the setting of scraper blade on the rubber seal, can realize scraping the surface of piston rod when the piston rod is in the reciprocating, avoid the piston rod surface to remain impurity such as dust to cause wearing and tearing to rubber seal or the inside sealing mechanism of hydro-cylinder, guarantee the sealed effect of whole hydro-cylinder, and the setting of mechanisms such as installed part and plug, can carry out quick maintenance to rubber seal and change, guarantee its sealed effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a hydraulic cylinder with good sealing effect according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of A in FIG. 1;
Fig. 3 is a schematic diagram of a rubber sealing ring in a hydraulic cylinder with good sealing effect according to an embodiment of the utility model;
fig. 4 is a schematic diagram of the bottom structure of a rubber seal ring in a hydraulic cylinder with good sealing effect according to an embodiment of the utility model;
fig. 5 is a schematic diagram of the external structure of a rubber seal ring in a hydraulic cylinder with good sealing effect according to an embodiment of the utility model.
In the figure: 1. an oil cylinder; 2. a rubber seal ring; 101. a return spring; 102. a piston rod; 103. a plug; 104. a sliding chamber; 105. ejecting the self-locking piece; 201. a mounting member; 202. a sliding groove; 203. extruding a spring; 204. a driver; 205. a scraper; 206. a fixed bayonet; 207. a slot.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-5, a hydraulic cylinder with good sealing effect comprises a cylinder 1, wherein a piston rod 102 is connected to the cylinder 1 in a sliding manner, a plug connector 103 is fixedly connected to the outer side wall of the upper end of the cylinder 1, the plug connector 103 is arranged in a square protruding block manner, a sliding cavity 104 is formed in the inner side wall of the plug connector 103, an ejection self-locking piece 105 is connected to the inner side wall of the sliding cavity 104 in a sliding manner, the contact end of the ejection self-locking piece 105 is arranged in a beveling manner, a reset spring 101 is fixedly connected to the outer side wall of the lower end of the ejection self-locking piece 105, one end, far away from the ejection self-locking piece 105, of the reset spring 101 is fixedly connected to the inner side wall of the sliding cavity 104, and a sealing mechanism is arranged on the piston rod 102;
further, the sealing mechanism comprises a rubber sealing ring 2 arranged on the piston rod 102, two sides of the rubber sealing ring 2 are fixedly connected with a mounting piece 201, a sliding groove 202 is formed in the top of the mounting piece 201, the inner side wall of the sliding groove 202 is slidably connected with a driving piece 204, a scraping plate 205 is fixedly connected to the outer side wall of the driving piece 204, the scraping plate 205 is in semi-annular arrangement, an extrusion spring 203 is fixedly connected to the outer side wall of the driving piece 204, one end, far away from the driving piece 204, of the extrusion spring 203 is fixedly connected to the inner side wall of the sliding groove 202, a slot 207 corresponding to the plug 103 is formed in the inner side wall of the mounting piece 201, and a fixing bayonet 206 is formed in the inner side wall of the slot 207;
it should be noted that, with the increase of the service time, when the sealing effect of the rubber sealing ring 2 is found to be reduced and the maintenance and replacement are required, the operator can press the pop-up self-locking member 105 inserted into the fixing bayonet 206 in advance at the outer side of the fixing bayonet 206, so that the pop-up self-locking member 105 contracts into the sliding cavity 104 and is separated from the fixing of the fixing bayonet 206, at this time, the operator can pull out the rubber sealing ring 2 together with the mounting member 201 from the plug 103, and replace the whole rubber sealing ring 2.
The hydraulic oil cylinder with good sealing effect has the working principle that:
When the rubber sealing ring 2 is used, firstly, the rubber sealing ring 2 can be installed, during installation, the slot 207 formed at the bottom of the installation piece 201 can be aligned and inserted into the plug-in connector 103, during insertion, the inner wall of the slot 207 can be contacted with the ejection self-locking piece 105, but the contact end of the ejection self-locking piece 105 is in a beveling arrangement, so that the ejection self-locking piece 105 cannot obstruct the downward insertion of the installation piece 201, the inner wall of the slot 207 can slowly extrude the ejection self-locking piece 105 into the sliding cavity 104 along the bevel edge of the ejection self-locking piece 105, so that the return spring 101 is in a contracted state, and when the top of the plug-in connector 103 is contacted with the top of the slot 207, the ejection self-locking piece 105 can be ejected and inserted into the fixed bayonet 206 under the elastic force of the return spring 101 at the moment, and the plug-in connector 103 is firmly fixed in the slot 207, so that the installation of the rubber sealing ring 2 is completed;
When rubber seal 2 installs the motion department of crossing at hydro-cylinder 1 and piston rod 102, even its inside sealing washer takes place to damage, rubber seal 2 also can seal it, guarantee that hydraulic oil can not take place to reveal, and scraper blade 205's setting, can scrape the surface of piston rod 102 when piston rod 102 reciprocates, avoid piston rod 102 surface to remain impurity such as dust to cause wearing and tearing to rubber seal 2 or the inside sealing mechanism of hydro-cylinder 1, through the setting of extrusion spring 203, can guarantee that scraper blade 205 and the contact on piston rod 102 surface are flexible contact, avoid contacting the too tight, influence the use of whole hydro-cylinder 1.
It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a hydraulic cylinder that sealed effect is good, includes hydro-cylinder (1), its characterized in that, sliding connection has piston rod (102) on hydro-cylinder (1), fixedly connected with connector (103) on the upper end lateral wall of hydro-cylinder (1), connector (103) are square lug setting, sliding chamber (104) have been seted up to the inside wall of connector (103), the inside wall sliding connection of sliding chamber (104) has ejection self-locking piece (105), the contact end that pops out self-locking piece (105) is the chamfer setting, fixedly connected with reset spring (101) on the lower extreme lateral wall that pops out self-locking piece (105), one end fixed connection on sliding chamber (104) is kept away from to reset spring (101), be provided with sealing mechanism on piston rod (102).
2. The hydraulic cylinder with good sealing effect according to claim 1, wherein the sealing mechanism comprises a rubber sealing ring (2) arranged on a piston rod (102), and two sides of the rubber sealing ring (2) are fixedly connected with mounting pieces (201).
3. The hydraulic cylinder with good sealing effect according to claim 2, wherein the inner side wall of the mounting member (201) is provided with a slot (207) corresponding to the plug connector (103), and the inner side wall of the slot (207) is provided with a fixing bayonet (206).
4. The hydraulic cylinder with good sealing effect according to claim 2, wherein a sliding groove (202) is formed in the top of the mounting piece (201), and a driving piece (204) is slidably connected to the inner side wall of the sliding groove (202).
5. The hydraulic cylinder with good sealing effect according to claim 4, wherein an extrusion spring (203) is fixedly connected to the outer side wall of the driving member (204), and one end of the extrusion spring (203) away from the driving member (204) is fixedly connected to the inner side wall of the sliding groove (202).
6. The hydraulic cylinder with good sealing effect according to claim 4, wherein a scraper (205) is fixedly connected to the outer side wall of the driving member (204), and the scraper (205) is arranged in a semi-annular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322799645.3U CN220956270U (en) | 2023-10-19 | 2023-10-19 | Hydraulic cylinder with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322799645.3U CN220956270U (en) | 2023-10-19 | 2023-10-19 | Hydraulic cylinder with good sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956270U true CN220956270U (en) | 2024-05-14 |
Family
ID=90980355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322799645.3U Active CN220956270U (en) | 2023-10-19 | 2023-10-19 | Hydraulic cylinder with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956270U (en) |
-
2023
- 2023-10-19 CN CN202322799645.3U patent/CN220956270U/en active Active
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