CN219865700U - Novel cylinder with rotation stopping structure - Google Patents
Novel cylinder with rotation stopping structure Download PDFInfo
- Publication number
- CN219865700U CN219865700U CN202321049177.1U CN202321049177U CN219865700U CN 219865700 U CN219865700 U CN 219865700U CN 202321049177 U CN202321049177 U CN 202321049177U CN 219865700 U CN219865700 U CN 219865700U
- Authority
- CN
- China
- Prior art keywords
- guide
- section
- piston
- cap
- rotation stopping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a novel cylinder with a rotation stopping structure, which comprises a cylinder body, a piston rod, a guide piece and a screw cap, wherein a piston cavity is arranged in the cylinder body, the piston rod is accommodated in the piston cavity and partially extends out of the cylinder body, the cylinder body comprises an upper section part and a lower section part with the outer diameter larger than that of the upper section part, the periphery of the upper section part is provided with a mounting groove, the guide piece is accommodated in the mounting groove, a sealing ring is arranged at the step of the flange of the guide piece and the mounting groove, the piston rod is provided with a guide groove which corresponds to the guide piece one by one and is in guide fit with the guide piece, the screw cap is in threaded connection with the periphery of the upper section part, the inner wall of the screw cap drives the guide piece to press the flange of the guide piece inwards so as to press the sealing ring, a guide inclined plane is arranged at the inner ring of the insertion end of the screw cap, and a sealing ring which is in seal fit with the piston rod is arranged between the upper section part or the upper section part and the screw cap.
Description
Technical Field
The utility model relates to the technical field of cylinders, in particular to a novel cylinder with a rotation stopping structure.
Background
The cylinder is a pneumatic executive component for converting the pressure of compressed gas into mechanical energy in pneumatic transmission, wherein the cylinder has various styles, such as a reciprocating linear motion cylinder, a reciprocating swing cylinder and the like, and the cylinders with different functions have different strokes and linkage effects, so the pneumatic executive component can be applied to a proper mechanism. However, most of the cylinders are carried out along with the reciprocating motion, and as the piston rod axially rotates in the moving process, the problems of running precision of driven parts or components, unstable clamping and the like easily occur. In the prior art, the axial rotation of the piston rod is usually solved by changing the shape of the piston rod, and the cylinder body is used for restraining the piston rod to prevent the piston rod from rotating axially; or increase the piston rod, prevent its axial rotation through the mutual constraint between ejector pad and the multiple piston rods, for example, chinese patent publication No. CN210118305U discloses a direct acting cylinder, including cylinder body, drive shaft, piston and end cover, the cylinder body is link up along its axis and is offered the mounting groove, the drive shaft slidably wears to locate in the mounting groove, the piston set up in the cylinder body, the drive shaft set up in on the piston, the end cover set up in order to seal up on the cylinder body the mounting groove keeps away from the one end of drive shaft, the mounting groove includes the rotation stopping hole and the holding hole of intercommunication, the drive shaft includes rotation stopping portion and fixed part, rotation stopping portion movably passes the rotation stopping hole, rotation stopping portion cross-section shape with rotation stopping portion's shape corresponds in order to restrict the drive shaft rotates. The direct-acting cylinder provided by the utility model has a simple structure, and the driving shaft axially moves but cannot axially rotate when the direct-acting cylinder is ventilated through the matching of the rotation stopping part and the shape of the rotation stopping hole, so that the loss of the accuracy of the driving shaft is prevented.
To the above-mentioned technical problem, the skilled person has designed a novel cylinder (patent publication number CN 215486956U), and it sets up two at least groups of guide pieces in the cylinder to set up the guide way on the piston, cooperate in order to play the effect of stopping changeing to the piston rod through guide piece and guide way direction, but this cylinder has following technical problem:
1. when the piston rod is assembled, the piston rod is required to be inserted into the piston cavity first, and then the guide piece is assembled, but when the guide piece is assembled, the guide piece is required to be aligned with the guide groove arranged on the piston rod, and when the piston rod is assembled, the angle of the piston rod is required to be continuously adjusted, and as the assembly staff in the cylinder body cannot accurately know whether the guide groove on the piston rod is aligned with the guide piece, the assembly of the guide piece is more inconvenient;
2. because the mounting groove for accommodating the guide piece is formed in the side wall of the cylinder barrel, part of gas in the piston cavity can run out of the cylinder barrel through a gap between the mounting groove and the guide piece, and for this purpose, the cylinder is provided with a sealing ring on the step surface of the guide piece and the mounting groove, and the sealing ring is tightly pressed by the flange of the guide piece so as to achieve the sealing purpose, but the depth of screwing the guide piece can not be accurately controlled when the guide piece is assembled manually, so that the sealing performance can not be ensured;
3. when the guide piece is assembled, the guide piece needs to be manually screwed one by one, so that the assembly efficiency is lower.
Disclosure of Invention
The utility model aims to provide a novel cylinder with a rotation stopping structure, which is simple in structure and convenient to assemble, and an assembler can accurately and quickly insert a guide part into a guide groove and can effectively ensure the tightness of a sealing ring.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a novel cylinder with structure of only changeing, includes cylinder body, piston rod, guide and cap soon, is equipped with the piston chamber in the cylinder body, and the piston rod holding is in the piston intracavity and part stretches out in the cylinder body, the cylinder body includes upper segment portion and external diameter is greater than the hypomere portion of upper segment portion, is equipped with the mounting groove around upper segment portion, and the guide holding is in the mounting groove, and the flange of guide is equipped with the sealing washer with the step department of mounting groove, and the piston rod be equipped with guide one-to-one and with guide direction complex guide way, cap soon threaded connection is in the periphery at upper segment portion, drives the guide inwards extrudees so that the flange of guide compresses tightly the sealing washer through the inner wall of cap soon, and cap soon inserts the end inner ring and is equipped with the guide inclined plane, upper segment portion or be equipped with between upper segment portion and the cap soon with piston rod seal complex sealing ring.
Further, the piston rod comprises a piston section and an output section, the piston section is fixedly connected with the output section through a fastener, the piston section is in sliding fit with a piston cavity of the lower section, and the output section is in sliding fit with an inner cavity of the upper section.
Further, the guide slot extends through a side of the output section adjacent the piston section.
Further, the mounting ring is arranged on the end face of the other side of the upper section relative to the lower section, the sealing ring is arranged in the mounting ring and attached to the outer wall of the output section, the rotary cap is provided with an end cover which is covered on the sealing ring, and the end cover is provided with a through hole matched with the output section for the output section to extend out.
Further, the outer diameter of the screw cap is matched with the outer diameter of the lower section.
Further, the guide piece comprises a guide part and a flange with the outer diameter larger than that of the guide part, the installation groove is matched with the guide piece in shape, and at least part of the guide part extends out of the installation groove and is in guide fit with the guide groove after the screw cap is assembled.
Further, a step surface is formed between the lower section and the upper section, and when the screw cap is screwed to the step surface to prop against the step surface, the screw cap completely props the flange of the guide piece into the mounting groove.
Further, a flat tangential surface is arranged on the lower section part, a first air passage communicated with the upper section piston cavity is arranged at the upper end of the flat tangential surface, and a second air passage communicated with the upper section piston cavity is arranged at the lower end of the flat tangential surface.
Further, the lower section part is provided with a through hole which is arranged relative to one side of the screw cap, and the through end of the lower section part is connected with a tail cover in a sealing way.
In summary, the utility model has the following beneficial effects:
the cylinder disclosed by the utility model is simple in structure and convenient to assemble, an assembler can accurately and rapidly insert a guide part into a guide groove, and meanwhile, the tightness of a sealing ring can be effectively ensured, and the specific assembly process is as follows: during assembly, the sealing ring is sleeved in the guide piece, the guide piece is placed in the mounting groove, the screw cap is screwed into the periphery of the upper section, the guide groove of the output section is aligned with the guide piece and inserted into the upper section, the output section and the piston section are fixed through the fastening piece, and finally the tail cover is mounted.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a schematic view of the structure of the first view angle of the present utility model.
Fig. 3 is a schematic structural view of the second view of the present utility model.
Fig. 4 is an exploded view of the present utility model.
In the figure: 1. a cylinder; 11. an upper section; 111. a mounting groove; 112. a mounting ring; 12. a lower section; 121. a first airway; 122. a second airway; 13. a tail cover; 2. a piston rod; 21. a piston section; 22. an output section; 221. a guide groove; 23. a fastener; 3. a guide member; 31. a guide part; 32. a flange; 4. a cap is screwed; 41. a guide slope; 42. an end cap; 421. a through hole; 5. a seal ring; 6. and (3) a sealing ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a novel cylinder with a rotation stopping structure comprises a cylinder body 1, a piston rod 2, a guide piece 3 and a screw cap 4, and the above forms the basic structure of the utility model.
The cylinder body 1 is internally provided with a piston cavity, the piston rod 2 is accommodated in the piston cavity and partially extends out of the cylinder body 1, the cylinder body 1 comprises an upper section 11 and a lower section 12 with the outer diameter larger than that of the upper section 11, the periphery of the upper section 11 is provided with an installation groove 111, the guide piece 3 is accommodated in the installation groove 111, the step of the flange 32 of the guide piece 3 and the installation groove 111 is provided with a sealing ring 5, the piston rod 2 is provided with guide grooves 221 which are in one-to-one correspondence with the guide piece 3 and are in guiding fit with the guide piece 3, the piston rod 2 is guided by the guide piece 3 to prevent the piston rod 2 from axially rotating in the reciprocating telescopic process, and further the problems of running precision losing, unstable clamping and the like are solved.
The screw cap 4 is in threaded connection with the periphery of the upper section 11, the inner wall of the screw cap 4 drives the guide piece 3 to extrude inwards so that the flange 32 of the guide piece 3 presses the sealing ring 5, the inner ring of the insertion end of the screw cap 4 is provided with a guide inclined surface 41, and the screw cap 4 can extrude and limit four groups of guide pieces 3 arranged in the circumferential direction at the same time, so that the assembly efficiency is improved.
In the utility model, a mounting ring 112 is arranged on the other side end surface of the upper section 11 relative to the lower section 12, the sealing ring 6 is arranged in the mounting ring 112 and is attached to the outer wall of the output section 22, the screw cap 4 is provided with an end cover 42 covered on the sealing ring 6, and the end cover 42 is provided with a through hole 421 matched with the output section 22 for the output section 22 to extend.
The piston rod 2 comprises a piston section 21 and an output section 22, the piston section 21 and the output section 22 are fixedly connected through a fastener 23, the piston section 21 is in sliding fit with a piston cavity of the lower section 12, the output section 22 is in sliding fit with an inner cavity of the upper section 11, and further, the guide groove 221 penetrates through one side, adjacent to the piston section 21, of the output section 22.
The external diameter of cap 4 and the external diameter phase-match of hypomere 12 soon, this setting makes this novel cylinder appearance unanimous, whole more pleasing to the eye.
The guide member 3 comprises a guide portion 31 and a flange 32 with an outer diameter larger than that of the guide portion 31, the mounting groove 111 is matched with the shape of the guide member 3, and at least part of the guide portion 31 extends out of the mounting groove 111 and is in guide fit with the guide groove 221 after the screw cap 4 is assembled. Further, a step surface is formed between the lower section 12 and the upper section 11, and when the cap 4 is screwed against the step surface, the cap 4 fully abuts the flange 32 of the guide 3 into the mounting groove 111.
A flat section surface is formed on the lower section 12, a first air passage 121 communicated with the upper section piston cavity is formed at the upper end of the flat section surface, and a second air passage 122 communicated with the upper section piston cavity is formed at the lower end of the flat section surface.
The lower section 12 is provided with a through arrangement relative to one side of the screw cap 4, the through end of the lower section 12 is in sealing connection with a tail cover 13, specifically, the tail cover 13 is fixedly connected with the cylinder body 1 through a fastener 23, and a sealing ring 5 is arranged between the cylinder body 1 and the tail cover 13 and used for playing a sealing role.
In summary, the utility model has the following beneficial effects:
the cylinder disclosed by the utility model is simple in structure and convenient to assemble, an assembler can accurately and rapidly insert a guide piece 3 into the guide groove 221, and meanwhile, the tightness of the sealing ring 5 can be effectively ensured, and the specific assembly process is as follows: during assembly, the sealing ring 5 is sleeved in the guide piece 3, the guide piece 3 is placed in the mounting groove 111, the screw cap 4 is screwed into the periphery of the upper section 11, the guide groove 221 of the output section 22 is aligned with the guide piece 3 and inserted into the upper section 11, the output section 22 and the piston section 21 are fixed through the fastener 23, and finally the tail cover 13 is mounted.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (9)
1. Novel cylinder with structure of ending, its characterized in that: including cylinder body (1), piston rod (2), guide (3) and cap (4) soon, be equipped with the piston chamber in cylinder body (1), piston rod (2) holding just partly stretches out in cylinder body (1) in the piston chamber, cylinder body (1) is including upper segment portion (11) and external diameter be greater than lower segment portion (12) of upper segment portion (11), be equipped with mounting groove (111) around upper segment portion (11), guide (3) holding in mounting groove (111), flange (32) of guide (3) are equipped with sealing washer (5) with the step department of mounting groove (111), piston rod (2) be equipped with guide (3) one-to-one and with guide (3) direction complex guide groove (221), cap (4) threaded connection is in the periphery of upper segment portion (11) soon, through the inside wall of cap (4) order about guide (3) inwards extrudees so that flange (32) of guide (3) compress tightly sealing washer (5), cap (4) insert the end and be equipped with inside ring inclined plane (41), upper segment portion (11) or cap (4) or upper segment (4) are equipped with between cap (4) and cap (6) and seal (4).
2. The novel cylinder with the rotation stopping structure according to claim 1, wherein: the piston rod (2) comprises a piston section (21) and an output section (22), the piston section (21) is fixedly connected with the output section (22) through a fastener (23), the piston section (21) is in sliding fit with a piston cavity of the lower section (12), and the output section (22) is in sliding fit with an inner cavity of the upper section (11).
3. A novel cylinder with a rotation stopping structure according to claim 2, characterized in that: the guide groove (221) penetrates one side of the output section (22) adjacent to the piston section (21).
4. A novel cylinder with a rotation stopping structure according to claim 2, characterized in that: the upper section (11) is provided with a mounting ring (112) relative to the end face of the other side of the lower section (12), the sealing ring (6) is arranged in the mounting ring (112) and is attached to the outer wall of the output section (22), the screw cap (4) is provided with an end cover (42) covered on the sealing ring (6), and the end cover (42) is provided with a through hole (421) matched with the output section (22) for the output section (22) to extend out.
5. The novel cylinder with the rotation stopping structure according to claim 1, wherein: the outer diameter of the screw cap (4) is matched with the outer diameter of the lower section (12).
6. The novel cylinder with the rotation stopping structure according to claim 1, wherein: the guide piece (3) comprises a guide part (31) and a flange (32) with the outer diameter larger than that of the guide part (31), the installation groove (111) is matched with the shape of the guide piece (3), and at least part of the guide part (31) extends out of the installation groove (111) and is in guide fit with the guide groove (221) after the screw cap (4) is assembled.
7. The novel cylinder with the rotation stopping structure according to claim 6, wherein: a step surface is formed between the lower section (12) and the upper section (11), and when the screw cap (4) is screwed to the step surface to abut against, the screw cap (4) completely abuts against the flange (32) of the guide piece (3) in the mounting groove (111).
8. A novel cylinder with a rotation stopping structure according to any one of claims 1-7, characterized in that: a flat section is formed in the lower section (12), a first air passage (121) communicated with the upper section piston cavity is formed in the upper end of the flat section, and a second air passage (122) communicated with the upper section piston cavity is formed in the lower end of the flat section.
9. A novel cylinder with a rotation stopping structure according to any one of claims 1-7, characterized in that: the lower section (12) is arranged to penetrate through one side of the screw cap (4), and the penetrating end of the lower section (12) is connected with a tail cover (13) in a sealing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321049177.1U CN219865700U (en) | 2023-05-05 | 2023-05-05 | Novel cylinder with rotation stopping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321049177.1U CN219865700U (en) | 2023-05-05 | 2023-05-05 | Novel cylinder with rotation stopping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865700U true CN219865700U (en) | 2023-10-20 |
Family
ID=88369556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321049177.1U Active CN219865700U (en) | 2023-05-05 | 2023-05-05 | Novel cylinder with rotation stopping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865700U (en) |
-
2023
- 2023-05-05 CN CN202321049177.1U patent/CN219865700U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219865700U (en) | Novel cylinder with rotation stopping structure | |
| CN215596222U (en) | Marine bearing of butt locate mode | |
| CN212486258U (en) | End cover sealing structure of precision motor | |
| CN211648318U (en) | Cylinder head cover convenient to disassemble | |
| CN217494399U (en) | Sheath processingequipment of wired cable manufacture usefulness | |
| CN216343133U (en) | Mechanical self-locking spiral swinging oil cylinder | |
| CN208323631U (en) | A kind of quick-replaceable box device of Multi-row Multi-shaft drill | |
| CN212055030U (en) | Novel piston structure for refrigerant recycling machine and refrigerant recycling machine | |
| CN110873087A (en) | Cylinder with adjustable piston rod control position | |
| CN220668134U (en) | Hat ring roller assembly of hat embroidery machine | |
| CN212959345U (en) | Hydraulic loading device | |
| CN220706280U (en) | Diaphragm tension cylinder for frame type stranding machine | |
| CN218429605U (en) | Multifunctional flange plate structure of injection seat | |
| CN214304630U (en) | Prevent rotation pneumatic cylinder | |
| CN209875611U (en) | Two-dimensional hydraulic cylinder | |
| CN219548925U (en) | Pneumatic motor with waterproof exhaust structure | |
| CN218151777U (en) | Novel hydraulic oil cylinder | |
| CN214788327U (en) | Thin hydraulic oil cylinder | |
| CN220706107U (en) | Locking engineering pneumatic cylinder that moves | |
| CN215486956U (en) | Novel air cylinder | |
| CN208764034U (en) | A kind of embedded threaded guide sleeve structure | |
| CN217433236U (en) | Floating file machine | |
| CN220839143U (en) | Roller screw pair for numerical control machine tool | |
| CN217123037U (en) | Tool for pulling small box body of plunger pump | |
| CN218953763U (en) | Locking bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |