CN220687077U - Hydraulic door closer piston - Google Patents
Hydraulic door closer piston Download PDFInfo
- Publication number
- CN220687077U CN220687077U CN202322137386.8U CN202322137386U CN220687077U CN 220687077 U CN220687077 U CN 220687077U CN 202322137386 U CN202322137386 U CN 202322137386U CN 220687077 U CN220687077 U CN 220687077U
- Authority
- CN
- China
- Prior art keywords
- piston body
- piston
- rack
- door closer
- hole
- 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.)
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Links
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model provides a hydraulic door closer piston, which comprises a piston body, wherein the piston body is provided with a mounting hole, the mounting hole penetrates through two sides of the piston body along the radial direction of the piston body, and a detachable rack is arranged on one side wall of the mounting hole along the radial direction of the piston body. The rack structure on the door closer piston is a detachable structure, so that the piston body only needs to be provided with a machining hole and a groove structure, the rack structure can be independently produced and machined, and then the rack is arranged on the piston body.
Description
Technical Field
The utility model relates to the technical field of hydraulic door closer parts of doors and windows, in particular to a hydraulic door closer piston.
Background
The door closer is generally installed on the fireproof door, the door closer comprises a hydraulic cylinder, a piston is arranged in the hydraulic cylinder, a mounting hole is formed in the piston, a gear is arranged in the mounting hole, a rack is arranged on one side wall of the mounting hole, the gear is meshed with the rack, the gear rotates to drive the piston to move, hydraulic oil is arranged in the hydraulic cylinder, and therefore buffering for closing the door is formed, and reference is made to fig. 1.
Applicant's 2020, 4, 21 patent applications for door closer pistons, such as patent number: CN202020603906.3, CN202020605283.3, also applied for the patent about door closer piston processing, for example, patent No. CN202020603934.5, the name is a patent of door closer piston fixing clamp, wherein, the processing of rack structure on the piston adopts milling cutter to carry out milling processing, but its processing cost is higher, and is limited by the size of mounting hole on the piston, the processing difficulty is also big, need to design special clamp and design milling cutter's travel path for whole processing equipment is also complicated.
Disclosure of Invention
Aiming at the problems pointed out in the background art, the utility model provides the hydraulic door closer piston, and the structure of the rack part on the piston adopts a split detachable structure, so that the rack can be independently processed, the processing cost is low, and the processing difficulty is small.
The technical scheme of the utility model is realized as follows:
the utility model provides a hydraulic pressure door closer piston, includes the piston body, is equipped with the mounting hole on the piston body, and the mounting hole runs through the both sides setting of piston body along the radial direction of piston body, is equipped with detachable rack on the lateral wall of mounting hole on the radial direction of piston body.
The utility model is further arranged that concave connecting grooves are respectively arranged on the two side walls of the mounting hole in the axial direction of the piston body, the connecting grooves penetrate through one radial side of the piston body, and the two ends of the rack are connected in the connecting grooves.
The utility model is further characterized in that the rack is provided with a pin hole, the piston body is provided with a positioning hole corresponding to the pin hole, and the pin hole and the positioning hole are connected with a positioning pin.
The utility model is further characterized in that the two ends of the rack are respectively provided with a connecting part perpendicular to the connecting parts, the piston body is axially provided with an oil hole penetrating through the piston body, the connecting parts are provided with positioning holes corresponding to the oil holes, the oil holes and the positioning holes are internally provided with positioning pins, and the positioning pins are provided with communication holes penetrating through the two axial ends of the positioning pins.
By adopting the technical scheme, the utility model has the beneficial effects that:
the rack structure on the piston of the hydraulic door closer provided by the utility model is of a detachable structure, so that only a hole and a groove structure are needed to be machined on the piston body, the rack structure can be independently produced and machined, and then the rack is arranged on the piston body.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic view of a conventional door closer.
Fig. 2 is a schematic structural view of a conventional door closer piston.
Fig. 3 is a schematic structural view of a piston body according to an embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 5 is a schematic structural diagram of a rack according to an embodiment of the present utility model.
Fig. 6 is a schematic structural diagram of a second embodiment of the present utility model.
Fig. 7 is a schematic structural diagram of a rack according to the second embodiment of the present utility model.
The reference numerals in the drawings indicate: the piston comprises a piston body 1, a mounting hole 2, a rack 3, a connecting groove 4, a pin hole 5, a positioning hole 6, a positioning pin 7, an oil hole 8, a connecting part 9 and a communication hole 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model is illustrated with reference to fig. 3-7 as follows:
the utility model provides a hydraulic pressure door closer piston, includes piston body 1, is equipped with mounting hole 2 on the piston body 1, and mounting hole 2 runs through the both sides setting of piston body 1 along the radial direction of piston body 1, is equipped with the oilhole 8 that runs through its axial both sides along its axial on the piston body 1, is equipped with detachable rack 3 on the lateral wall of mounting hole 2 on the radial direction of piston body 1. The connection structure of the rack 3 and the piston body 1 provides the following two embodiments:
embodiment one: on the axial direction of the piston body 1, connecting grooves 4 which are concave are respectively arranged on two side walls of the mounting hole 2, the connecting grooves 4 penetrate through one radial side of the piston body 1, and two ends of the rack 3 are connected in the connecting grooves 4. The rack 3 is provided with a pin hole 5, the piston body 1 is provided with a positioning hole 6 corresponding to the pin hole 5, the pin hole 5 and the positioning hole 6 are connected with a positioning pin 7, and when the rack 3 is installed, two ends of the rack 3 are inserted into the connecting groove 4, and then the positioning pin 7 is used for positioning and fixing.
Embodiment two: the both ends of rack 3 are equipped with respectively rather than vertically connecting portion 9, and rack 3 and connecting portion 9 wholly form U-shaped structure, and rack 3 and connecting portion 9 set up as an organic wholely, are equipped with the locating hole 6 that corresponds with oilhole 8 on the connecting portion 9, are equipped with locating pin 7 in oilhole 8 and the locating hole 6, are equipped with the intercommunicating pore 10 that runs through its axial both ends on the locating pin 7, and intercommunicating pore 10 supplies hydraulic oil to pass through.
By adopting the technical scheme, the processing of the piston body 1 only needs to be performed on the processing of holes and grooves, the rack 3 can be obtained by processing long-strip-shaped parts, compared with the direct processing of the rack structure on the piston body 1, the independent processing of the rack 3 is simpler in structure, small in processing difficulty and low in manufacturing cost (the rack structure can be processed by a hobbing method, compared with the original milling method, the cost is lower).
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.
Claims (4)
1. The utility model provides a hydraulic pressure door closer piston, includes the piston body, is equipped with the mounting hole on the piston body, and the mounting hole runs through the both sides setting of piston body along the radial direction of piston body, its characterized in that: and a detachable rack is arranged on one side wall of the mounting hole in the radial direction of the piston body.
2. A hydraulic door closer piston according to claim 1, wherein: on the axial direction of the piston body, concave connecting grooves are respectively arranged on the two side walls of the mounting hole, the connecting grooves penetrate through one radial side of the piston body, and the two ends of the rack are connected in the connecting grooves.
3. A hydraulic door closer piston according to claim 2, wherein: the rack on be equipped with the pinhole, the piston body on be equipped with the locating hole that corresponds with the pinhole, be connected with the locating pin in pinhole and the locating hole.
4. A hydraulic door closer piston according to claim 1, wherein: the two ends of the rack are respectively provided with a connecting part perpendicular to the connecting part, the piston body is axially provided with an oil hole penetrating through the piston body, the connecting part is provided with a positioning hole corresponding to the oil hole, positioning pins are arranged in the oil hole and the positioning hole, and the positioning pins are provided with communication holes penetrating through the two axial ends of the positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137386.8U CN220687077U (en) | 2023-08-10 | 2023-08-10 | Hydraulic door closer piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137386.8U CN220687077U (en) | 2023-08-10 | 2023-08-10 | Hydraulic door closer piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687077U true CN220687077U (en) | 2024-03-29 |
Family
ID=90374092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322137386.8U Active CN220687077U (en) | 2023-08-10 | 2023-08-10 | Hydraulic door closer piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687077U (en) |
-
2023
- 2023-08-10 CN CN202322137386.8U patent/CN220687077U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |