CN211574234U - Piston pin connection sealing structure - Google Patents
Piston pin connection sealing structure Download PDFInfo
- Publication number
- CN211574234U CN211574234U CN202020079627.1U CN202020079627U CN211574234U CN 211574234 U CN211574234 U CN 211574234U CN 202020079627 U CN202020079627 U CN 202020079627U CN 211574234 U CN211574234 U CN 211574234U
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- piston
- sleeve
- piston pin
- sealing
- connecting rod
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Abstract
The utility model relates to a piston accessory technical field just discloses a piston pin joint driving fit structure, which comprises a piston, two fixed orificess, two have been seted up to the outer wall symmetry of piston the activity of fixed orifices has cup jointed same piston pin, the outer movable sleeve of piston pin is equipped with the sleeve, telescopic outer wall fixedly connected with connecting rod, the sleeve is located the piston, the outer wall movable sleeve of piston pin is equipped with two sealing washers, two the sealing washer is located telescopic left and right sides, the sealing washer is close to telescopic one side and the inseparable laminating of sleeve, the sealing washer is close to telescopic one side fixedly connected with sealing ring, the sealing ring is located telescopic inside. The utility model discloses the effectual relatively poor problem that leads to connecting rod and piston to produce the skew easily of the driving fit of having avoided piston pin and connecting rod junction.
Description
Technical Field
The utility model relates to a piston accessory technical field especially relates to a piston pin joint driving fit structure.
Background
The piston pin is a cylindrical pin arranged on the skirt part of the piston, the middle part of the piston pin penetrates through the small end hole of the connecting rod and is used for connecting the piston and the connecting rod, and the function of the piston pin is to transmit the gas acting force born by the piston to the connecting rod or enable the small end of the connecting rod to drive the piston to move together.
The junction of current piston pin and connecting rod is swing joint, and the leakproofness is relatively poor, and when lubricating oil got into piston pin and connecting rod junction, the connector that leads to the connecting rod easily slided for the piston pin to lead to producing the skew between connecting rod and the piston, influence the normal use of piston.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the poor sealing performance of the junction of piston pin and connecting rod leads to connecting rod and piston to produce the skew easily among the prior art, and a piston pin joint sealing structure who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a piston pin joint driving fit structure, includes the piston, two fixed orificess, two have been seted up to the outer wall symmetry of piston the activity in the fixed orifices has cup jointed same piston pin, the outer movable sleeve of piston pin is equipped with the sleeve, telescopic outer wall fixedly connected with connecting rod, the sleeve is located the piston, the outer wall movable sleeve of piston pin is equipped with two sealing washers, two the sealing washer is located telescopic left and right sides, the sealing washer is close to telescopic one side and closely laminates with the sleeve, the sealing washer is close to telescopic one side fixedly connected with sealing ring, the sealing ring is located telescopic inside.
Preferably, the inner wall of the piston is symmetrically and fixedly connected with two jacking pipes, the two jacking pipes are sleeved outside the piston pin, the two jacking pipes are respectively positioned at the left side and the right side of the sleeve, and the two jacking pipes are sleeved outside the sealing ring.
Preferably, the inner walls of the left side and the right side of the piston are symmetrically and fixedly connected with two clamping blocks, one side of the sealing ring close to the inner wall of the piston is provided with two clamping grooves corresponding to the clamping blocks, and the clamping blocks are located in the clamping grooves.
Preferably, clamping springs are embedded in the two fixing holes and are respectively located at two ends of the piston pin.
Preferably, the piston pin is movably sleeved with a fixed cylinder, and the fixed cylinder is positioned in the sleeve.
Preferably, the sealing ring is integrally formed with the sealing ring.
Compared with the prior art, the utility model provides a driving fit structure is connected to piston pin possesses following beneficial effect:
this driving fit structure is connected to piston pin, piston through the setting, the fixed orifices, the piston pin, the sleeve, the connecting rod, sealing washer and sealing ring, during the use, place two sealing washers in the piston, prevent putting in the middle of two sealing washers with the sleeve, pass two sealing washers and sleeve with the piston pin, telescopic both ends can be hugged closely to the sealing washer, seal the junction of sleeve and piston pin, avoid lubricating oil to get into telescopic inside, the sealing ring can further seal telescopic inside, improve the leakproofness between sleeve and the piston pin, the effectual relatively poor connecting rod and the piston problem that produces the skew easily that leads to of the driving fit of piston pin and the junction of connecting rod of having avoided.
The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the effectual poor problem that leads to connecting rod and piston to produce the skew easily of the driving fit of having avoided piston pin and connecting rod junction.
Drawings
Fig. 1 is a schematic structural view of a piston pin connection sealing structure according to the present invention;
FIG. 2 is a schematic structural view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a portion B in fig. 2.
In the figure: 1 piston, 2 fixed orificess, 3 piston pins, 4 sleeves, 5 connecting rods, 6 sealing rings, 7 sealing rings, 8 jacking pipes, 9 clamping blocks, 10 clamping grooves, 11 clamping springs and 12 fixed cylinders.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, a piston pin connection sealing structure, including a piston 1, two fixing holes 2 are symmetrically formed on the outer wall of the piston 1, the same piston pin 3 is movably sleeved in the two fixing holes 2, a sleeve 4 is movably sleeved outside the piston pin 3, a connecting rod 5 is fixedly connected to the outer wall of the sleeve 4, the sleeve 4 is positioned in the piston 1, two sealing rings 6 are movably sleeved on the outer wall of the piston pin 3, the two sealing rings 6 are positioned at the left side and the right side of the sleeve 4, one side of the sealing ring 6 close to the sleeve 4 is tightly attached to the sleeve 4, one side of the sealing ring 6 close to the sleeve 4 is fixedly connected with a sealing ring 7, the sealing ring 7 is positioned in the sleeve 4, when in use, the two sealing rings 6 are placed in the piston 1, the sleeve 4 is prevented from being placed between the two sealing rings 6, the piston pin 3 passes, sealing up sleeve 4 and piston pin 3's junction, avoiding lubricating oil to get into sleeve 4's inside, sealing ring 7 can further seal up sleeve 4's inside, improves the leakproofness between sleeve 4 and the piston pin 3, and the effectual poor connecting rod that leads to of the adaptation of piston pin 3 with the junction of connecting rod and the problem that piston 1 produced the skew easily of having avoided.
Two push pipes 8 of the inner wall symmetry fixedly connected with of piston 1, two push pipes 8 all overlap outside piston pin 3 is located, two push pipes 8 are located the left and right sides of sleeve 4 respectively, and outside sealing washer 6 was located to two push pipes 8 all overlaps, push pipe 8 can carry on spacingly to sleeve 4, makes sleeve 4 be located the centre of piston.
Two fixture blocks 9 of the equal symmetry fixedly connected with of inner wall of the piston 1 left and right sides, two draw-in grooves 10 corresponding with fixture block 9 have been seted up to one side that sealing washer 6 is close to piston 1 inner wall, and fixture block 9 is located draw-in groove 10, mutually supports through fixture block 9 and draw-in groove 10, can fix a position sealing washer 6, improves sealing washer 6's stability.
All inlaying in two fixed orificess 2 and being equipped with jump ring 11, two jump rings 11 are located the both ends of piston pin 3 respectively, and jump ring 11 can be fixed a position piston pin 3, avoids piston pin 3 to break away from piston 1.
The movable sleeve is equipped with a fixed cylinder 12 outside the piston pin 3, and the fixed cylinder 12 is located the sleeve 4, and the fixed cylinder 12 can improve the leakproofness of sleeve 4 and piston pin 3 junction.
The sealing ring 6 and the sealing ring 7 are integrally formed, so that the production convenience of the sealing ring 6 and the sealing ring 7 is improved, and the cost of the sealing ring 6 and the sealing ring 7 is reduced.
The utility model discloses in, during the use, place two sealing washer 6 in piston 1, prevent to put sleeve 4 in the middle of two sealing washer 6, pass two sealing washer 6 and sleeve 4 with piston pin 3, sleeve 4's both ends can be hugged closely to sealing washer 6, seal sleeve 4 and piston pin 3's junction, avoid lubricating oil to get into sleeve 4's inside, sealing ring 7 can further seal sleeve 4's inside, improve the leakproofness between sleeve 4 and the piston pin 3, the effectual relatively poor connecting rod and the piston 1 problem that produces the skew of leading to of the driving fit of avoiding piston pin 3 and the junction of connecting rod.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A piston pin connection sealing structure comprises a piston (1), wherein two fixing holes (2) are symmetrically formed in the outer wall of the piston (1), a same piston pin (3) is movably sleeved in the two fixing holes (2), a sleeve (4) is movably sleeved outside the piston pin (3), the outer wall of the sleeve (4) is fixedly connected with a connecting rod (5), the sleeve (4) is positioned in the piston (1), it is characterized in that two sealing rings (6) are movably sleeved on the outer wall of the piston pin (3), the two sealing rings (6) are positioned at the left side and the right side of the sleeve (4), one side of the sealing ring (6) close to the sleeve (4) is tightly attached to the sleeve (4), one side fixedly connected with sealing ring (7) that sealing washer (6) are close to sleeve (4), sealing ring (7) are located the inside of sleeve (4).
2. The piston pin connection sealing structure according to claim 1, wherein two top pipes (8) are symmetrically and fixedly connected to the inner wall of the piston (1), the two top pipes (8) are respectively sleeved outside the piston pin (3), the two top pipes (8) are respectively positioned at the left side and the right side of the sleeve (4), and the two top pipes (8) are respectively sleeved outside the sealing ring (6).
3. A piston pin connection sealing structure according to claim 1, wherein two clamping blocks (9) are symmetrically and fixedly connected to the inner walls of the left and right sides of the piston (1), one side of the sealing ring (6) close to the inner wall of the piston (1) is provided with two clamping grooves (10) corresponding to the clamping blocks (9), and the clamping blocks (9) are located in the clamping grooves (10).
4. A piston pin connection sealing structure according to claim 1, wherein a snap spring (11) is embedded in each of the two fixing holes (2), and the two snap springs (11) are respectively located at two ends of the piston pin (3).
5. A piston pin connection sealing structure according to claim 1, wherein said piston pin (3) is movably sleeved with a fixed cylinder (12), and said fixed cylinder (12) is located in the sleeve (4).
6. A piston pin connection sealing structure according to claim 1, wherein the seal ring (6) is formed integrally with the seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020079627.1U CN211574234U (en) | 2020-01-15 | 2020-01-15 | Piston pin connection sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020079627.1U CN211574234U (en) | 2020-01-15 | 2020-01-15 | Piston pin connection sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574234U true CN211574234U (en) | 2020-09-25 |
Family
ID=72554861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020079627.1U Active CN211574234U (en) | 2020-01-15 | 2020-01-15 | Piston pin connection sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574234U (en) |
-
2020
- 2020-01-15 CN CN202020079627.1U patent/CN211574234U/en active Active
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