Flat rod limiting type small telescopic air cylinder
The telescopic column is fixed through the flat rod limit structure and the gear system, and the rotational deviation of the small cylinder push rod is solved, and the stable movement and angle adjustment of the telescopic column is achieved, which is suitable for industrial automation equipment.
Patent Information
- Application Number
- CN202422260845.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The push rods of existing small cylinders are prone to rotational deviations in the cylinder expansion groove, and the rotation angle of the push rod cannot be flexibly adjusted, resulting in inconvenient operation.
The flat rod limiting structure is adopted, and the telescopic column is driven to lift and move through the piston rod, and the telescopic column is fixed using the limit shell and the gear system to prevent rotation. At the same time, the gear drives the limit shell to rotate to adjust the direction of the telescopic column.
Effectively prevent the telescopic column from rotating and offset during movement, and flexibly adjust the orientation of the telescopic column to adapt to the connection of actuators at different angles.
Smart Images
Figure CN223293986U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of power mechanical devices, and in particular to a flat-rod limited small telescopic cylinder. Background Art
[0002] In the field of industrial automation, cylinders are widely used in various automation equipment, such as machine tools, packaging machines, printing machines, etc. In the field of industrial automation, cylinders, as key components of internal combustion engines, usually use linear reciprocating motion for power transmission, thereby converting heat energy or pressure energy into mechanical energy to provide power for the device. However, with the development of the industrial field, the requirements for manufacturing and production have become more and more stringent, resulting in the emergence of small cylinders suitable for refined production. Existing small cylinders usually use a circular push rod structure for telescopic movement to generate thrust, but as the piston pushes the push rod back and forth, the push rod is prone to rotation in the cylinder telescopic groove, resulting in offset, and the push rod needs to be disassembled and adjusted from time to time. At the same time, the angle of the actuator connected to the push rod will change with the product, and it is very troublesome to manually adjust the push rod angle each time. Utility Model Content
[0003] In order to improve the problem that the push rod in the existing conventional small cylinder is prone to rotational deviation and cannot be fixed, and the rotation angle of the push rod cannot be flexibly adjusted, the present application provides a flat rod limited small telescopic cylinder.
[0004] The present application provides a small telescopic cylinder with a flat rod limiter, which adopts the following technical solutions:
[0005] A small telescopic cylinder with a flat rod limit position comprises a main housing, an air inlet for transmitting compressed air is provided on one side of the outer surface of the main housing, an air inlet groove is provided in the main housing relative to the air inlet, and a piston rod is movably provided on the top of the air inlet groove.
[0006] A limit housing is movably provided at the top of the piston rod in the main housing, a telescopic column is inserted in the middle of the limit housing, and a first gear is arranged around the outer surface of the limit housing.
[0007] By adopting the above technical solution, the piston rod is pushed by compressed air, causing the telescopic column to move up and down. At the same time, the telescopic column is limited by the limit shell to prevent rotation during movement. At the same time, the first gear drives the limit shell to rotate, thereby causing the telescopic column to rotate synchronously, thereby changing the direction of the telescopic column's flatness.
[0008] Preferably, a piston groove is provided at the bottom of the air inlet groove in the main shell, and a through groove communicating with the outside is provided at the top of the piston groove in the main shell.
[0009] By adopting the above technical solution, the piston groove reserves space for the lifting and lowering movement of the piston rod, and laterally limits the movement of the piston rod, so that the piston rod transmits the thrust generated by the movement to the subsequent rotating seat.
[0010] Preferably, a sealing layer abutting against the inner wall of the piston groove is fixedly provided at the middle of the piston rod, and a rotating seat is fixedly provided at the top of the piston rod, and the upper end surface of the rotating seat is rotatably connected to the telescopic column.
[0011] By adopting the above technical solution, the sealing layer prevents the oil carried by the compressed air from entering the cylinder, and is fixed to the piston rod, thereby increasing the contact area with the compressed air and enhancing the thrust of the compressed air.
[0012] Preferably, a bottom groove is formed on the lower end surface of the limiting shell, and a limiting hole is formed on one side of the bottom of the bottom groove through the top of the limiting shell, and the inner wall of the limiting hole abuts against the outer surface of the telescopic column.
[0013] By adopting the above technical solution, the telescopic column is inserted into the limiting hole and fixed laterally to form a limiting effect. At the same time, the bottom groove reserves space for the lifting and lowering movement of the rotating seat and limits the above-mentioned height of the rotating seat.
[0014] Preferably, a rotation opening communicating with the central through slot is provided inwardly at the top of the main shell, and the inner wall of the rotation opening abuts against the outer surface of the limiting shell.
[0015] By adopting the above technical solution, the rotation opening reserves a movable gap for the rotation of the limit shell, and at the same time the limit shell rotates in the rotation opening to form an integral fixation.
[0016] Preferably, a ring groove is provided on one side of the central through groove close to the piston groove, and the inner wall of the ring groove is plugged and fixed to the bottom of the limiting shell.
[0017] By adopting the above technical solution, the annular groove is plugged into the bottom of the limiting shell, thereby preventing the limiting shell from deflecting when rotating.
[0018] Preferably, a first gear is fixedly provided on the surface of the limiting shell located in the middle slot, a rotating rod is fixedly provided on the side of the middle slot away from the limiting shell, and a second gear meshing with the first gear is rotatably provided on the surface of the rotating rod.
[0019] By adopting the above technical solution, the second gear rotates around the rotating rod, and transmits the rotational force to the first gear, so that the first gear drives the limiting housing to rotate.
[0020] Preferably, a threaded seat is fixedly provided on one side of the outer surface of the main shell close to the air inlet groove, and the threaded seat is fixedly connected to the mounting end of the air inlet. A plurality of mounting holes are opened on the upper end surface of the main shell around the limiting shell.
[0021] By adopting the above technical solution, the mounting hole provides a fulcrum for fixing the external actuator housing, forming a complete fixation. At the same time, the threaded seat is connected to the air inlet thread to prevent the compressed gas from leaking out and to assist in enhancing the thrust of the compressed gas.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. The piston rod is used to lift the rotating seat to apply thrust to the telescopic column. At the same time, the telescopic column is flat and connected with the limit hole, thus forming a lateral limit, so that the telescopic column can be raised and lowered along the limit hole, effectively preventing the telescopic column from rotating accidentally during the lifting and moving;
[0024] 2. The first gear is longitudinally engaged in the middle through groove, thereby fixing the limit housing longitudinally. At the same time, the first gear drives the limit housing to rotate, thereby forming a whole with the telescopic column, driving the telescopic column to rotate, thereby manually adjusting the direction of the telescopic column, facilitating docking and interaction of actuators at different angles. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a three-dimensional schematic diagram of this application;
[0026] Figure 2 This is an exploded view of the interior of this application;
[0027] Figure 3 This is a side sectional view of the present application;
[0028] Figure 4 This is a side cross-sectional contraction diagram of this application;
[0029] Figure 5 This is a cross-sectional view of the limiting shell of this application.
[0030] Reference numerals: 1, main housing; 2, threaded seat; 3, air inlet; 4, air inlet groove; 5, piston groove; 6, middle through groove; 7, rotating port; 8, piston rod; 9, sealing layer;
[0031] 10. Rotating seat; 11. Limiting housing; 12. Limiting hole; 13. Bottom groove; 14. Telescopic column; 15. Rotating plate; 16. Rotating rod; 17. First gear; 18. Second gear; 19. Ring groove; 20. Mounting hole. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-5 This application is described in further detail.
[0033] The embodiment of the present application discloses a small telescopic cylinder with a flat rod limit.
[0034] Reference Figures 1 to 3A flat rod limited small telescopic cylinder comprises a main shell 1, and four mounting holes 20 are provided around the center of the upper end surface of the main shell 1 for fixing external actuators. A conical air inlet groove 4 is provided inwardly on one side of the outer surface of the main shell 1, and a threaded seat 2 is glued and fixed at the groove around the air inlet groove 4 on the outer surface of the main shell 1. A through hole is formed in the middle of the threaded seat 2, and the through hole is conical and connected to the air inlet groove 4. A threaded groove connecting the through hole is provided inwardly on the side surface of the threaded seat 2 away from the main shell 1, and an air inlet 3 is threadedly connected to the threaded groove of the threaded seat 2, and the threaded connection gap of the air inlet 3 is filled with adhesive to increase the sealing. The air inlet 3 has a through hole in the middle, and the center of the through hole of the air inlet 3 is aligned with the center of the through hole of the threaded seat 2.
[0035] An air compression device is provided at the interface of the air inlet 3 located on the outside, and the air inlet 3 transmits the delivered compressed air to the threaded seat 2. The interfaces on both sides of the threaded seat 2 are respectively fixed to the air inlet 3 and the air inlet groove 4, thereby forming a sealed connection to prevent air leakage. At the same time, the air enters the conical groove of the threaded seat 2, the air flow space is reduced, and the conical surface of the air inlet groove 4 is combined to help increase the flow rate of the compressed air.
[0036] Reference Figure 2 The main housing 1 is provided with a piston groove 5 at the top of the end of the air inlet groove 4. The inner wall of the piston groove 5 is surrounded by a circular sealing layer 9. The middle of the sealing layer 9 is fixed with a piston rod 8, and the top of the piston rod 8 is set to a conical surface (such as Figure 2 As shown, the conical surface of the piston rod 8 is located above the sealing layer 9), and a central groove 6 is provided at the top of the piston groove 5 inside the main shell 1. The central groove 6 passes through the outer surface of the main shell 1 on the other side of the air inlet 3 to communicate with the outside, and an annular groove 19 is provided around the connecting port between the central groove 6 and the piston groove 5. The central groove 6 passes through the main shell 1 upward at the other end relative to the piston groove 5 to provide a rotating port 7, and the top of the rotating port 7 protrudes from the upper end surface of the main shell 1.
[0037] The lower end surface of the sealing layer 9 comes into contact with the compressed air delivered by the air inlet groove 4. The compressed air applies an upward thrust to the sealing layer 9, so that the sealing layer 9 drives the piston rod 8 to move upward. At the same time, the opening of the middle groove 6 and the rotating opening 7 reserves installation space for the extension and contraction of the telescopic column 14 and the rotation structure.
[0038] Reference Figures 2 to 5A rotating seat 10 is fixed to the top of the conical surface of the piston rod 8, and a rotating rod in the middle of the upper end surface of the rotating seat 10 is rotatably connected to a rotating disk 15 (the rotating seat 10 and the rotating disk 15 are in a longitudinal fixed state). The rotating disk 15 is fixed with a flat telescopic column 14 relative to the other end surface of the rotating seat 10. At the same time, the inner surface of the air inlet 3 fits against the limiting shell 11, and the upper end surface of the limiting shell 11 is flush with the upper end surface of the air inlet 3. A limiting hole 12 is opened inward in the middle of the upper end surface of the limiting shell 11, and the shape of the limiting hole 12 is consistent with the shape of the telescopic column 14. The bottom of the limiting hole 12 passes through the bottom surface of the limiting shell 11 and is provided with a circular bottom groove 13.
[0039] It should be noted that the diameter of the limit shell 11 is consistent with the diameter of the annular groove 19 and a movable gap is reserved. The bottom of the limit shell 11 is inserted into the annular groove 19 to form a limit. The diameter of the rotating seat 10 is consistent with the diameter of the bottom groove 13 and a movable gap is reserved. Under normal circumstances, the piston rod 8, the rotating seat 10 and the rotating disk 15 are located in the piston groove 5, the telescopic column 14 is inserted into the limit hole 12, and the telescopic column 14 is flush with the upper end surface of the limit shell 11.
[0040] The piston rod 8 translates upward and applies an upward thrust to the bottom of the rotating seat 10, so that the rotating seat 10 lifts the rotating disk 15 to transmit the thrust to the bottom of the telescopic column 14, so that the top of the telescopic column 14 protrudes from the top of the limit shell 11. At the same time, the inner wall of the limit hole 12 fits with the telescopic column 14 to perform lateral limitation, preventing the telescopic column 14 from deflecting during the extension and retraction process.
[0041] Reference Figures 2 to 5 A first gear 17 is fixed around the portion of the outer surface of the limit shell 11 located in the middle through groove 6. At the same time, a rotating rod 16 is fixed in the middle through groove 6 on the other side relative to the first gear 17. The surface of the rotating rod 16 is rotatably connected to a second gear 18, and the tooth surface of the second gear 18 is meshed and abutted with the first gear 17. The side of the second gear 18 away from the first gear 17 protrudes from the main shell 1 and is located on the outside. The tooth surface of the second gear 18 located on the outside is meshed and connected with a motor device that provides rotational force.
[0042] The second gear 18 is connected to the external motor device and rotates, thereby driving the first gear 17 to rotate synchronously. The first gear 17 drives the limit housing 11 to rotate in the middle groove 6 and the rotating mouth 7, so that the telescopic column 14 rotates synchronously. At the same time, as the telescopic column 14 rotates, the rotating disk 15 is driven to rotate in the rotating seat 10, forming a limit connection to fix it longitudinally, preventing the telescopic column 14 from deflecting during rotation. The first gear 17 is located in the middle groove 6 to form a longitudinal fixation, preventing the piston rod 8 from pushing up and causing the limit housing 11 to protrude from the rotating mouth 7 and cause deflection.
[0043] The implementation principle of a flat rod limited small telescopic cylinder in the embodiment of the present application is as follows: when using this device, a person starts an externally arranged air compression device through a microcomputer, so that the compressed air is delivered from the air inlet 3 to the air inlet groove 4. During the delivery process, the air passes through the conical groove in the middle of the threaded seat 2, reducing the flow area and thereby increasing the flow speed. After entering the air inlet groove 4, the air is delivered to the piston groove 5, and generates a thrust on the bottom of the piston rod 8 and the bottom surface of the sealing layer 9, so that the piston rod 8 as a whole moves upward along the piston groove 5. As the piston rod 8 moves upward, a thrust is applied to the bottom of the rotating seat 10. The rotating seat 10 transmits the thrust from the rotating disk 15 to the telescopic column 14, so that the telescopic column 14 moves upward along the limiting hole 12, and finally protrudes from the rotating port 7 and the outside. At the same time, the bottom groove 13 limits the upward movement height of the rotating disk 15, and stops rising when the upper end surface of the rotating disk 15 abuts against the bottom of the bottom groove 13.
[0044] Similarly, the external air compression device extracts air, changing the piston groove 5 to a vacuum state, generating a pulling force to move the piston rod 8 downward, thereby retracting the telescopic column 14 into the limiting hole 12. Repeated operations allow the telescopic column 14 to interact with the external actuator, and the telescopic column 14 is flat and engaged with the limiting hole 12, thereby preventing the telescopic column 14 from accidentally rotating during the telescopic process.
[0045] When the telescopic column 14 performs telescopic movement, the personnel drives the second gear 18 to rotate through the microcomputer-controlled motor device. The second gear 18 rotates around the rotating rod 16, thereby driving the first gear 17 to rotate. The first gear 17 is longitudinally fixed by the upper and lower inner walls of the middle through groove 6. When the rotating disk 15 abuts against the bottom groove 13, the first gear 17 limits the limit housing 11 to prevent the limit housing 11 from protruding from the rotating opening 7 as a whole. At the same time, the first gear 17 drives the limit housing 11 to rotate around the center. As the limit housing 11 rotates, the telescopic column 14 is driven to rotate, so that the direction of the telescopic column 14 can be manually adjusted, which is convenient for adjustment and interaction with actuators at different angles.
[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A small telescopic cylinder with a flat rod limit, characterized by: The invention comprises a main shell (1), wherein one side of the outer surface of the main shell (1) is connected to an air inlet (3) for transmitting compressed air, an air inlet groove (4) is provided in the main shell (1) at a position relative to the air inlet (3), and a piston rod (8) is movably provided at the top of the air inlet groove (4) of the main shell (1); A limit housing (11) is movably provided at the top of the piston rod (8) in the main housing (1), a telescopic column (14) is inserted in the middle of the limit housing (11), and a first gear (17) is provided around the outer surface of the limit housing (11).
2. A flat rod limited small telescopic cylinder according to claim 1, characterized in that: A piston groove (5) is provided at the bottom of the air inlet groove (4) in the main housing (1), and a through groove (6) communicating with the outside is provided at the top of the piston groove (5) in the main housing (1).
3. A flat-rod limited small telescopic cylinder according to claim 2, characterized in that: A sealing layer (9) is fixedly provided in the middle of the piston rod (8) and abuts against the inner wall of the piston groove (5). A rotating seat (10) is fixedly provided on the top of the piston rod (8). The upper end surface of the rotating seat (10) is rotatably connected to the telescopic column (14).
4. A flat-rod limited small telescopic cylinder according to claim 1, characterized in that: A bottom groove (13) is provided on the lower end surface of the limiting shell (11), and a limiting hole (12) is provided on one side of the bottom of the bottom groove (13) through the top of the limiting shell (11), and the inner wall of the limiting hole (12) abuts against the outer surface of the telescopic column (14).
5. A flat-rod limited small telescopic cylinder according to claim 1, characterized in that: A rotation opening (7) communicating with the central through groove (6) is provided inwardly on the top of the main housing (1), and the inner wall of the rotation opening (7) abuts against the outer surface of the limiting housing (11).
6. A flat-rod limited small telescopic cylinder according to claim 2, characterized in that: A ring groove (19) is provided on one side of the middle through groove (6) close to the piston groove (5), and the inner wall of the ring groove (19) is plugged and fixed to the bottom of the limiting housing (11).
7. A flat-rod limited small telescopic cylinder according to claim 1, characterized in that: A first gear (17) is fixedly provided on a portion of the surface of the limiting housing (11) located in the central through slot (6); a rotating rod (16) is fixedly provided on a side of the central through slot (6) away from the limiting housing (11); and a second gear (18) is rotatably provided on the surface of the rotating rod (16) and meshes with the first gear (17).
8. The flat-rod limited small telescopic cylinder according to claim 1, characterized in that: A threaded seat (2) is fixedly connected to one side of the outer surface of the main shell (1) near the air inlet groove (4), and the threaded seat (2) is fixedly connected to the mounting end of the air inlet (3). A plurality of mounting holes (20) are formed on the upper end surface of the main shell (1) around the limiting shell (11).