CN210164718U - Oil cylinder piston with good sealing performance - Google Patents
Oil cylinder piston with good sealing performance Download PDFInfo
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- CN210164718U CN210164718U CN201921124678.5U CN201921124678U CN210164718U CN 210164718 U CN210164718 U CN 210164718U CN 201921124678 U CN201921124678 U CN 201921124678U CN 210164718 U CN210164718 U CN 210164718U
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Abstract
The utility model discloses an oil cylinder piston with good sealing performance, in particular to the field of pistons, which comprises a piston rod, wherein one end of the piston rod is provided with a piston assembly; the piston assembly comprises a piston body, a piston rod groove is formed in one side of the piston body, one end of a piston rod is arranged in the piston rod groove, a plurality of sealing ring grooves are formed in the piston body, a first groove and a second groove are formed in the piston body, fixing rings are fixedly arranged in the first groove and the second groove, and a connecting ring is fixedly arranged on one side of each fixing ring. The utility model discloses an inside oil hydraulic pressure force of oil storage tank increases to extrude first rubber circle to the expansion of outside inflation, make the inclined plane seal cover by the extrusion paste tight pneumatic cylinder body inboard, indirectly increased the leakproofness of piston body with the pneumatic cylinder body is inboard, make the piston body outside and the inboard very good sealed effect that reaches of pneumatic cylinder body.
Description
Technical Field
The utility model relates to a piston technical field, more specifically say, the utility model relates to a hydro-cylinder piston that the leakproofness is good.
Background
The hydraulic cylinder is called hydraulic cylinder, 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, and the hydraulic cylinder basically comprises a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.
The piston is a very important part in the hydraulic cylinder, the piston is arranged on a piston rod and has a diameter larger than that of a piston rod, the cylinder body of the hydraulic cylinder is divided into two cavities, the two cavities bear the pressure of oil liquid and transmit the force to the piston rod to do work, two end faces of the piston can bear the force, one end face is pushed out under the force, and the other end face is retracted under the force.
In the piston in the prior art, some disadvantages exist, such as the contact between the piston and the inner side of the hydraulic cylinder body is not tight enough, the sealing between the outer side of the piston and the inner side of the hydraulic cylinder body is not good enough, and oil can pass through the gap between the outer side of the piston and the inner side of the hydraulic cylinder body, so that the problem caused by the fact that the piston can not completely bear the pressure brought by the oil is solved, and the thrust of the piston is small.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides an oil cylinder piston that leakproofness is good, lead the fluid in the oil groove through the pneumatic cylinder body inboard and first oil groove and second and be extruded and pour into the oil storage tank into, make the inside hydraulic pressure power increase of oil storage tank, thereby extrude first rubber circle outside inflation expansion, it is inboard to make the inclined plane seal cover be extruded and paste tight pneumatic cylinder body, thereby further increase the leakproofness between inclined plane seal cover and the pneumatic cylinder body inboard, piston body and the inboard leakproofness of pneumatic cylinder body have been increased promptly indirectly, make the piston body outside and the inboard very good sealed effect that reaches of pneumatic cylinder body, in order to solve the problem of proposing in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an oil cylinder piston with good sealing performance comprises a piston rod, wherein a piston assembly is arranged at one end of the piston rod;
the piston assembly comprises a piston body, a piston rod groove is formed in one side of the piston body, one end of a piston rod is arranged in the piston rod groove, a plurality of sealing ring grooves are formed in the piston body, a first groove and a second groove are formed in the piston body, a fixing ring is fixedly arranged in the first groove and the second groove, a connecting ring is fixedly arranged on one side of the fixing ring, a first rubber ring and a second rubber ring are fixedly arranged on one side of the connecting ring away from the fixing ring, oil storage grooves are formed in the first rubber ring and the second rubber ring, an inclined sealing sleeve is sleeved on the outer side of the first rubber ring, a first oil guide groove is formed in one side of the piston body, a second oil guide groove is formed in the other side of the piston body, the first oil guide groove is communicated with the first groove, and the second oil guide groove is communicated with the second groove.
In a preferred embodiment, a connecting block groove is formed in one side of the piston body, which is far away from the piston rod groove, and the connecting block groove is communicated with the piston rod groove.
In a preferred embodiment, one end of the piston rod is fixedly provided with a connecting block, and the connecting block is arranged inside a connecting block groove.
In a preferred embodiment, a baffle is arranged on one side of the piston body, a first screw penetrates through the baffle, a first thread groove is formed in one side of the connecting block, a plurality of second screws penetrate through the baffle, and a plurality of second thread grooves are formed in one side of the piston body, which is far away from the first oil guide groove.
In a preferred embodiment, one end of the first screw is inserted into the first thread groove.
In a preferred embodiment, one end of the second screw is inserted into the second thread groove.
In a preferred embodiment, the first groove is arranged on one side of the second groove, and the first rubber ring is arranged on the outer side of the second rubber ring.
In a preferred embodiment, the number of the first oil guide grooves is eight, and the number of the second oil guide grooves is eight.
The utility model discloses a technological effect and advantage:
1. the oil in the inner side of the cylinder body of the hydraulic cylinder and the first oil guide groove and the second oil guide groove is extruded and injected into the oil storage groove, so that the oil pressure in the oil storage groove is increased, the first rubber ring is extruded to expand outwards, the inclined surface sealing sleeve is extruded to be attached to the inner side of the cylinder body of the hydraulic cylinder, the sealing performance between the inclined surface sealing sleeve and the inner side of the cylinder body of the hydraulic cylinder is further increased, namely the sealing performance between the piston body and the inner side of the cylinder body of the hydraulic cylinder is indirectly increased, and the outer side of the piston body and the inner side of the cylinder body;
2. through first screw fixed connection baffle and connecting block, make the piston body press from both sides tightly between piston rod and baffle to fine fix the piston body on the piston rod, and through second screw here fixed connection baffle and piston body, thereby further strengthened the fixed effect between piston rod and the piston body indirectly.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.
Fig. 3 is a schematic side view of the piston body of the present invention.
Fig. 4 is a front view structure diagram of the piston body of the present invention.
Fig. 5 is a schematic view of the front view structure of the piston rod of the present invention.
Fig. 6 is a schematic view of the three-dimensional structure of the connecting block of the present invention.
The reference signs are: 1 piston rod, 2 piston assembly, 3 piston body, 4 piston rod grooves, 5 sealing ring grooves, 6 first grooves, 7 second grooves, 8 retainer rings, 9 connecting rings, 10 first rubber rings, 11 second rubber rings, 12 oil storage tanks, 13 inclined plane seal sleeves, 14 first oil guide tanks, 15 second oil guide tanks, 16 connecting block grooves, 17 connecting blocks, 18 baffles, 19 first screws, 20 first thread grooves, 21 second screws and 22 second thread grooves.
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.
The oil cylinder piston with good sealing performance shown in the attached drawings 1-3 comprises a piston rod 1, wherein a piston assembly 2 is arranged at one end of the piston rod 1;
the piston assembly 2 comprises a piston body 3, a piston rod groove 4 is formed in one side of the piston body 3, one end of a piston rod 1 is arranged in the piston rod groove 4, a plurality of sealing ring grooves 5 are formed in the piston body 3, a first groove 6 and a second groove 7 are formed in the piston body 3, a fixed ring 8 is fixedly arranged in each of the first groove 6 and the second groove 7, a connecting ring 9 is fixedly arranged on one side of the fixed ring 8, a first rubber ring 10 and a second rubber ring 11 are fixedly arranged on one side of the connecting ring 9 away from the fixed ring 8, oil storage grooves 12 are respectively formed in each of the first rubber ring 10 and the second rubber ring 11, an inclined sealing sleeve 13 is sleeved on the outer side of the first rubber ring 10, a first oil guide groove 14 is formed in one side of the piston body 3, a second oil guide groove 15 is formed in the other side of the piston body, and the first oil guide groove 14 is communicated with the first groove 6, the second oil guide groove 15 is communicated with the second groove 7;
the first groove 6 is arranged on one side of the second groove 7, and the first rubber ring 10 is arranged on the outer side of the second rubber ring 11;
the number of the first oil guide grooves 14 is eight, and the number of the second oil guide grooves 15 is eight.
The implementation mode is specifically as follows: a plurality of sealing ring grooves 5 are arranged on a piston rod 1 to place sealing rings, so that the sealing property between the outer side of a piston body 3 and the inner side of a hydraulic cylinder body is improved, a first groove 6 and a second groove 7 are formed in the middle of the outer side of the piston body 3, a fixing ring 8 is arranged in the first groove 6 and the second groove 7, a connecting ring 9 is fixed on the fixing ring 8, the connecting ring 9 and the fixing ring 8 are fixed in the first groove 6 and the second groove 7, a first rubber ring 10 and a second rubber ring 11 are arranged on one side of the connecting ring 9, an oil storage groove 12 is arranged on the first rubber ring 10 and the second rubber ring 11 and used for storing oil, a convex inclined sealing sleeve 13 is arranged on the outer side of the first rubber ring 10, the inclined sealing sleeve 13 is tightly attached to the inner side of the hydraulic cylinder body, so that the outer side of the first rubber ring 10 and the inner side of the hydraulic cylinder body achieve the sealing effect, oil storage grooves 14, 15 and 12 are filled with oil, when piston body 3 receives oil hydraulic pressure force and when the cylinder body inboard slides at the hydraulic cylinder, the oil hydraulic pressure force of the inboard inside of cylinder body increases, thereby the inboard hydraulic cylinder body and first lead oil groove 14 and the interior fluid of second lead oil groove 15 are pushed and are poured into oil storage tank 12, thereby make the oil hydraulic pressure force of the inside of oil storage tank 12 increase, the inside oil hydraulic pressure force of oil storage tank 12 increases and extrudes first rubber ring 10 outside inflation expansion, make inclined plane seal cover 13 further hug closely the cylinder body inboard by the extrusion, thereby further increase the leakproofness between inclined plane seal cover 13 and the cylinder body inboard, the leakproofness of piston body 3 and cylinder body inboard has been increased indirectly promptly, make the outside of piston body 3 and cylinder body inboard reach very good sealed effect.
As shown in fig. 1, 4, 5 and 6, the oil cylinder piston with good sealing performance further comprises a connecting block groove 16, wherein the connecting block groove 16 is formed in one side, far away from the piston rod groove 4, of the piston body 3, and the connecting block groove 16 is communicated with the piston rod groove 4;
one end of the piston rod 1 is fixedly provided with a connecting block 17, and the connecting block 17 is arranged in a connecting block groove 16;
a baffle 18 is arranged on one side of the piston body 3, a first screw 19 penetrates through the baffle 18, a first thread groove 20 is formed in one side of the connecting block 17, a plurality of second screws 21 penetrate through the baffle 18, and a plurality of second thread grooves 22 are formed in one side of the piston body 3, which is far away from the first oil guide groove 14;
one end of the first screw 19 is arranged in the first thread groove 20 in a penetrating way;
one end of the second screw 21 is inserted into the second thread groove 22.
The implementation mode is specifically as follows: through fixed setting connecting block 17 on piston rod 1 to through first screw 19 fixed connection baffle 18 and connecting block 17, make piston body 3 press from both sides tightly between piston rod 1 and baffle 18, thereby fine fix piston body 3 on piston rod 1, and through second screw 21 here fixed connection baffle 18 and piston body 3, thereby further strengthened the fixed effect between piston rod 1 and the piston body 3 indirectly.
The utility model discloses the theory of operation:
referring to the attached drawings 1-3 of the specification, oil in the inner side of the cylinder body of the hydraulic cylinder and the first oil guide groove 14 and the second oil guide groove 15 is extruded and injected into the oil storage groove 12, so that the oil pressure in the oil storage groove 12 is increased, the first rubber ring 10 is extruded to expand outwards, the inclined surface sealing sleeve 13 is extruded to be attached to the inner side of the cylinder body of the hydraulic cylinder, the sealing performance between the inclined surface sealing sleeve 13 and the inner side of the cylinder body of the hydraulic cylinder is further improved, namely the sealing performance between the piston body 3 and the inner side of the cylinder body of the hydraulic cylinder is indirectly improved, and the outer side of the piston body 3 and the inner side of the;
referring to the attached drawings 1, 4, 5 and 6 of the specification, the baffle plate 18 and the connecting block 17 are fixedly connected through the first screw 19, so that the piston body 3 is clamped between the piston rod 1 and the baffle plate 18, the piston body 3 is well fixed on the piston rod 1, the baffle plate 18 and the piston body 3 are fixedly connected through the second screw 21, and the fixing effect between the piston rod 1 and the piston body 3 is further indirectly enhanced.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a hydro-cylinder piston that leakproofness is good, includes piston rod (1), its characterized in that: one end of the piston rod (1) is provided with a piston assembly (2);
the piston assembly (2) comprises a piston body (3), a piston rod groove (4) is formed in one side of the piston body (3), one end of the piston rod (1) is arranged inside the piston rod groove (4), a plurality of sealing ring grooves (5) are formed in the piston body (3), a first groove (6) and a second groove (7) are formed in the piston body (3), a fixing ring (8) is fixedly arranged inside each of the first groove (6) and the second groove (7), a connecting ring (9) is fixedly arranged on one side of each fixing ring (8), a first rubber ring (10) and a second rubber ring (11) are fixedly arranged on one side, far away from the fixing ring (8), of each connecting ring (9), oil storage grooves (12) are formed in each of the first rubber ring (10) and the second rubber ring (11), and an inclined sealing sleeve (13) is sleeved on the outer side of each first rubber ring (10), piston body (3) one side is seted up first oil groove (14) and the opposite side is seted up second and is led oil groove (15), first oil groove (14) of leading is linked together with first recess (6), second oil groove (15) of leading is linked together with second recess (7).
2. The cylinder piston with good sealing performance as claimed in claim 1, wherein: and a connecting block groove (16) is formed in one side, far away from the piston rod groove (4), of the piston body (3), and the connecting block groove (16) is communicated with the piston rod groove (4).
3. The cylinder piston with good sealing performance as claimed in claim 2, wherein: and one end of the piston rod (1) is fixedly provided with a connecting block (17), and the connecting block (17) is arranged in the connecting block groove (16).
4. The oil cylinder piston with good sealing performance as claimed in claim 3, wherein: piston body (3) one side is equipped with baffle (18), run through on baffle (18) and be equipped with first screw (19), first thread groove (20) have been seted up to connecting block (17) one side, run through on baffle (18) and be equipped with a plurality of second screw (21), piston body (3) are kept away from first oil guide groove (14) one side and have been seted up a plurality of second thread grooves (22).
5. The cylinder piston with good sealing performance as claimed in claim 4, wherein: one end of the first screw (19) penetrates through the first thread groove (20).
6. The cylinder piston with good sealing performance as claimed in claim 4, wherein: one end of the second screw (21) penetrates through the second thread groove (22).
7. The cylinder piston with good sealing performance as claimed in claim 1, wherein: the first groove (6) is arranged on one side of the second groove (7), and the first rubber ring (10) is arranged on the outer side of the second rubber ring (11).
8. The cylinder piston with good sealing performance as claimed in claim 1, wherein: the number of the first oil guide grooves (14) is eight, and the number of the second oil guide grooves (15) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124678.5U CN210164718U (en) | 2019-07-18 | 2019-07-18 | Oil cylinder piston with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124678.5U CN210164718U (en) | 2019-07-18 | 2019-07-18 | Oil cylinder piston with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210164718U true CN210164718U (en) | 2020-03-20 |
Family
ID=69795371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921124678.5U Active CN210164718U (en) | 2019-07-18 | 2019-07-18 | Oil cylinder piston with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210164718U (en) |
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2019
- 2019-07-18 CN CN201921124678.5U patent/CN210164718U/en active Active
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