CN217327907U - Anti-shearing hydraulic oil cylinder - Google Patents
Anti-shearing hydraulic oil cylinder Download PDFInfo
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- CN217327907U CN217327907U CN202123307020.8U CN202123307020U CN217327907U CN 217327907 U CN217327907 U CN 217327907U CN 202123307020 U CN202123307020 U CN 202123307020U CN 217327907 U CN217327907 U CN 217327907U
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Abstract
The utility model belongs to the technical field of hydraulic cylinder, specific anti-shear formula hydraulic cylinder that says so, the power distribution box comprises a cylinder body, the port threaded connection cylinder cap of cylinder body, the inside sliding connection of cylinder body has the piston rod, the surface rigid coupling of cylinder cap has the thread block, the thread groove has been seted up on the port surface of cylinder body, the surface rigid coupling of cylinder cap has the inserted block, the slot has been seted up on the surface of cylinder body. Through the surface of covering the sealed pad in the thread piece, with thread piece and thread groove butt joint, at the in-process that cylinder cap and cylinder body connect soon, inserted block and slot butt joint, after thread piece and thread groove are stable to connect soon, the recess on inserted block surface aligns with the seal groove port of slot side, the rubber air bag of inserted block bottom surface is stably docked and is extruded to inserted block and slot, rubber air bag receives the inside gas of extrusion and gets into the air seal cushion through the air flue, the inside gas of air seal cushion increases and swells, stabilize and seal groove butt joint, improve the connection leakproofness between cylinder body and the cylinder cap, avoid leaking.
Description
Technical Field
The utility model relates to a hydraulic cylinder technical field specifically is anti-shear formula hydraulic cylinder.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion).
The existing anti-shearing hydraulic oil cylinder is characterized in that the cylinder body and the cylinder cover are connected through simple threads and are sealed by matching with a rubber pad, when a piston rod moves, the piston rod collides with the cylinder cover, the cylinder cover is loosened frequently, leakage is caused, the sealing effect is influenced, and therefore the anti-shearing hydraulic oil cylinder is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
In order to compensate the not enough of prior art, solve the problem among the background art, the utility model provides an anti-shear type hydraulic cylinder.
The utility model provides a technical scheme that its technical problem adopted is: the utility model discloses an anti-shearing hydraulic cylinder, including the cylinder body, the port threaded connection cylinder cap of cylinder body, the sliding connection has the piston rod inside the cylinder body, the surface rigid coupling of cylinder cap has the thread piece, the port surface of cylinder body has the thread groove, the surface rigid coupling of cylinder cap has the inserted block, the surface of cylinder body has the slot, the surface of inserted block has the recess, it has the sealed air cushion to bond in the recess, the surface of cylinder cap is located and has been seted up the seal groove in the slot, the lower extreme surface of inserted block bonds has the rubber gasbag, the inside of inserted block has the air flue, the surface of cylinder cap is located and has bonded the sealed pad outside the thread piece, the surface of cylinder cap has the fixed slot, the port side of cylinder body rigid coupling has the connecting block, the bottom surface rigid coupling of connecting block has the fixed column, the port sliding connection of fixed column has the stop pin, the sealing between the anti-shearing hydraulic oil cylinder, the cylinder body and the cylinder cover is facilitated.
Preferably, screw block and thread groove looks adaptation just are threaded connection each other, sealed the surface of filling up in screw block, sealed the pad is the rubber packing ring, is favorable to the preliminary sealing of cylinder body and cylinder cap.
Preferably, the insertion block is matched with the slot, the cross sections of the ports of the insertion block and the slot are circular, the rubber air bag is matched with the slot, and the sealing air cushion is matched with the groove, so that the sealing effect between the cylinder body and the cylinder cover is improved.
Preferably, the rubber air bag is a hollow rubber ring, the sealing air cushion is a hollow sealing ring, the air passage is L-shaped, and the air passage is used for communicating the sealing air cushion with the rubber air bag, so that the air transfer between the sealing air cushion and the rubber air bag is facilitated.
Preferably, the seal groove and the seal air cushion are matched, and the number of the air passages is a plurality of groups and distributed in an annular array, so that the gas transfer effect is improved.
Preferably, the fixing groove is matched with the fixing block, the surface of the fixing block is in a threaded shape, the fixing groove is a threaded hole, the fixing column is a cylindrical barrel, and the end port of the locking pin penetrates through the fixing column and is fixedly connected with the fixing block, so that the position locking of the cylinder cover and the cylinder body is facilitated, and the looseness is avoided.
Preferably, the surface rigid coupling of stop pin has the dog, the inside cover that the surface of stop pin is located the fixed column is equipped with the spring, the port and the dog rigid coupling of spring are favorable to the quick butt joint of fixed slot and fixed block.
Preferably, the inner chambers of the stop block and the fixing column are matched, the stop block and the fixing column are in sliding connection, the fixing groove, the locking pin and the fixing block are symmetrically distributed on two sides of the cylinder body, and the spring is of a compression type, so that the position locking effect of the cylinder cover and the cylinder body is improved, and looseness is avoided.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a cover the surface at the thread piece with sealed the pad, with thread piece and thread groove butt joint, in the process that anti-shear hydraulic cylinder's cylinder cap and cylinder body connect through thread piece and thread groove soon, inserted block and slot butt joint, after thread piece and thread groove are stable to connect soon, the recess on inserted block surface aligns with the seal groove port of slot side, inserted block and slot are stable to dock and extrude the rubber air bag of inserted block bottom surface, the rubber air bag receives extrusion inside gas and gets into the sealing air cushion through the air flue, the inside gas of sealing air cushion increases and swells, stably dock with the seal groove, improve the connection leakproofness between cylinder body and the cylinder cap, avoid leaking;
2. the utility model discloses a cylinder cap and cylinder body at anti-shear formula hydraulic cylinder connect before soon, the pulling stop pin, make the stop pin drive the dog and remove and extrude the spring, make fixed block shrink to in the connecting block, after cylinder cap and cylinder body are stably connected, loosen the stop pin, the spring promotes the dog and slides in the fixed column is inside, the dog drives stop pin and fixed block and moves up in step, make the fixed block stable with the fixed slot butt joint, rotatory stop pin, the stop pin drives the fixed block at the fixed slot internal rotation, make fixed block and fixed slot connect soon, and then stably carry out the position locking to the cylinder cap, it is not hard up to avoid the cylinder cap to receive the collision, the gyration, cause the leakage, thereby improve the connection leakproofness between cylinder cap and the cylinder body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the structure of the cylinder cover and the cylinder body according to the present invention;
fig. 3 is an enlarged view of a in fig. 2 according to the present invention;
fig. 4 is a cross-sectional view of the cylinder head of the present invention;
fig. 5 is an enlarged view of B in fig. 4 according to the present invention;
fig. 6 is a sectional view of the structure of the locking pin of the present invention.
In the figure: 1. a cylinder body; 2. a piston rod; 3. a cylinder cover; 4. connecting blocks; 5. a fixed block; 6. a gasket; 7. inserting a block; 8. a slot; 9. sealing the air cushion; 10. fixing grooves; 11. a rubber air bag; 12. a groove; 13. a thread block; 14. a thread groove; 15. a sealing groove; 16. an airway; 17. fixing a column; 18. a stopper; 19. a locking pin; 20. a spring.
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 efforts belong to the protection scope of the present invention.
Referring to fig. 1-6, the anti-shear hydraulic cylinder includes a cylinder body 1, a cylinder cover 3 is screwed to a port of the cylinder body 1, a piston rod 2 is slidably connected inside the cylinder body 1, a thread block 13 is fixedly connected to a surface of the cylinder cover 3, a thread groove 14 is formed in a surface of the port of the cylinder body 1, an insert block 7 is fixedly connected to a surface of the cylinder cover 3, an insert groove 8 is formed in a surface of the cylinder body 1, a groove 12 is formed in a surface of the insert block 7, a sealing air cushion 9 is bonded in the groove 12, a sealing groove 15 is formed in the groove 8 in a surface of the cylinder cover 3, a rubber air bag 11 is bonded on a lower end surface of the insert block 7, an air passage 16 is formed inside the insert block 7, a sealing gasket 6 is bonded on an outer portion of the thread block 13 in a surface of the cylinder cover 3, a fixing groove 10 is formed in a surface of the cylinder cover 3, the side face of the port of the cylinder body 1 is fixedly connected with a connecting block 4, the bottom face of the connecting block 4 is fixedly connected with a fixing column 17, and the port of the fixing column 17 is slidably connected with a locking pin 19, so that sealing between the anti-shearing hydraulic cylinder, the cylinder body 1 and the cylinder cover 3 is facilitated.
Screw block 13 and thread groove 14 looks adaptation just are threaded connection each other, sealed 6 covers in screw block 13's surface of filling up, sealed 6 rubber packing rings that are of filling up are favorable to the preliminary sealing of cylinder body 1 and cylinder cap 3.
The plug block 7 is matched with the slot 8, the cross sections of the ports of the plug block 7 and the slot 8 are circular, the rubber air bag 11 is matched with the slot 8, and the sealing air cushion 9 is matched with the groove 12, so that the sealing effect between the cylinder body 1 and the cylinder cover 3 is further improved.
The fixing groove 10 is matched with the fixing block 5, the surface of the fixing block 5 is in a threaded shape, the fixing groove 10 is a threaded hole, the fixing column 17 is a cylindrical barrel, the port of the locking pin 19 penetrates through the fixing column 17 and is fixedly connected with the fixing block 5, the position locking of the cylinder cover 3 and the cylinder body 1 is facilitated, and the leakage of hydraulic oil in the cylinder body 1 due to looseness is avoided.
The surface rigid coupling of stop pin 19 has dog 18, the inside cover that the surface of stop pin 19 is located fixed column 17 is equipped with spring 20, spring 20's port and dog 18 rigid coupling are favorable to the quick butt joint of fixed slot 10 and fixed block 5, the inner chamber looks adaptation of dog 18 and fixed column 17, and be sliding connection between dog 18 and the fixed column 17, fixed slot 10 and stop pin 19 and fixed block 5 symmetric distribution are in the both sides of cylinder body 1, spring 20 is the compression, is favorable to improving the position locking effect of cylinder cap 3 and cylinder body 1, avoids becoming flexible to improve the connection leakproofness between cylinder cap 3 and the cylinder body 1.
The working principle of the utility model is that the sealing gasket 6 is sleeved on the surface of the thread block 13 by arranging the inserting block 7, the inserting slot 8, the rubber air bag 11, the sealing air cushion 9, the groove 12 and the sealing groove 15, the thread block 13 is butted with the thread groove 14, in the process that the cylinder cover 3 and the cylinder body 1 of the anti-shearing hydraulic cylinder are screwed through the thread block 13 and the thread groove 14, the insertion block 7 is butted with the slot 8, after the thread block 13 and the thread groove 14 are stably screwed, the groove 12 on the surface of the insert block 7 is aligned with the port of the sealing groove 15 on the side surface of the slot 8, the insert block 7 is stably butted with the slot 8 and extrudes the rubber air bag 11 on the bottom surface of the insert block 7, the rubber air bag 11 is extruded to allow internal air to enter the sealing air cushion 9 through the air passage 16, the internal air in the sealing air cushion 9 is increased and expanded, the rubber air bag is stably butted with the sealing groove 15, the connection sealing performance between the cylinder body 1 and the cylinder cover 3 is improved, and leakage is avoided; by arranging the connecting block 4, the fixing column 17, the fixing block 5, the fixing groove 10, the stop block 18, the locking pin 19 and the spring 20, before the cylinder cover 3 and the cylinder body 1 of the anti-shearing hydraulic cylinder are screwed, the locking pin 19 is pulled, so that the locking pin 19 drives the stop block 18 to move and extrude the spring 20, the fixed block 5 is contracted into the connecting block 4, after the cylinder cover 3 and the cylinder body 1 are stably connected, the locking pin 19 is loosened, the spring 20 pushes the stop block 18 to slide in the fixing column 17, the stop block 18 drives the locking pin 19 and the fixing block 5 to synchronously move upwards, so that the fixing block 5 is stably butted with the fixing groove 10, the locking pin 19 is rotated, the locking pin 19 drives the fixing block 5 to rotate in the fixing groove 10, so that the fixing block 5 is rotatably butted with the fixing groove 10, and then stably carry out position locking to cylinder cap 3, avoid cylinder cap 3 to receive the collision not hard up, the gyration leads to the fact the leakage to improve the connection leakproofness between cylinder cap 3 and the cylinder body 1.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. Anti-shear type hydraulic cylinder, its characterized in that: including cylinder body (1), port threaded connection cylinder cap (3) of cylinder body (1), the inside sliding connection of cylinder body (1) has piston rod (2), the surface rigid coupling of cylinder cap (3) has thread block (13), thread groove (14) have been seted up on the port surface of cylinder body (1), the surface rigid coupling of cylinder cap (3) has inserted block (7), slot (8) have been seted up on the surface of cylinder body (1), the surface of inserted block (7) is seted up flutedly (12), recess (12) internal bonding has sealing air cushion (9), seal groove (15) have been seted up in the surface of cylinder cap (3) is located slot (8), the lower extreme surface bonding of inserted block (7) has rubber air bag (11), air flue (16) have been seted up to the inside of inserted block (7), the surface of cylinder cap (3) is located the outside bonding of thread block (13) and has sealed pad (6), fixed slot (10) have been seted up on the surface of cylinder cap (3), the port side rigid coupling of cylinder body (1) has connecting block (4), the bottom surface rigid coupling of connecting block (4) has fixed column (17), the port sliding connection of fixed column (17) has stop pin (19).
2. The anti-shear hydraulic ram of claim 1, wherein: the thread block (13) is matched with the thread groove (14) and in threaded connection with the thread groove, the sealing gasket (6) is sleeved on the surface of the thread block (13), and the sealing gasket (6) is a rubber gasket.
3. The anti-shear hydraulic ram of claim 1, wherein: the plug block (7) is matched with the slot (8), the cross sections of the ports of the plug block (7) and the slot (8) are circular, the rubber air bag (11) is matched with the slot (8), and the sealing air cushion (9) is matched with the groove (12).
4. The anti-shear hydraulic ram of claim 3, wherein: the rubber air bag (11) is a hollow rubber ring, the sealing air cushion (9) is a hollow sealing ring, the air passage (16) is L-shaped, and the sealing air cushion (9) is communicated with the rubber air bag (11) through the air passage (16).
5. The anti-shear hydraulic ram of claim 1, wherein: the sealing grooves (15) are matched with the sealing air cushions (9), and the number of the air passages (16) is a plurality of groups and is distributed in an annular array.
6. The anti-shear hydraulic ram of claim 1, wherein: the fixing groove (10) is matched with the fixing block (5), the surface of the fixing block (5) is in a threaded shape, the fixing groove (10) is a threaded hole, the fixing column (17) is a cylindrical barrel, and the end opening of the locking pin penetrates through the fixing column (17) and is fixedly connected with the fixing block (5).
7. The anti-shear hydraulic ram of claim 6, wherein: the surface of the locking pin is fixedly connected with a stop block (18), a spring (20) is sleeved on the surface of the locking pin and positioned in the fixed column (17), and the port of the spring (20) is fixedly connected with the stop block (18).
8. The anti-shear hydraulic ram of claim 7, wherein: the inner cavities of the stop block (18) and the fixing column (17) are matched, the stop block (18) is in sliding connection with the fixing column (17), the fixing groove (10), the locking pin and the fixing block (5) are symmetrically distributed on two sides of the cylinder body (1), and the spring (20) is in a compression type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307020.8U CN217327907U (en) | 2021-12-24 | 2021-12-24 | Anti-shearing hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123307020.8U CN217327907U (en) | 2021-12-24 | 2021-12-24 | Anti-shearing hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217327907U true CN217327907U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123307020.8U Active CN217327907U (en) | 2021-12-24 | 2021-12-24 | Anti-shearing hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217327907U (en) |
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2021
- 2021-12-24 CN CN202123307020.8U patent/CN217327907U/en active Active
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