CN220870069U - Sealing structure of electric pneumatic telescopic rod - Google Patents
Sealing structure of electric pneumatic telescopic rod Download PDFInfo
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- CN220870069U CN220870069U CN202322760775.6U CN202322760775U CN220870069U CN 220870069 U CN220870069 U CN 220870069U CN 202322760775 U CN202322760775 U CN 202322760775U CN 220870069 U CN220870069 U CN 220870069U
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- 238000007789 sealing Methods 0.000 title claims abstract description 106
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
Aiming at the technical problems that the traditional electric air pressure telescopic rod has poor sealing performance and cannot meet the air tightness requirement of the electric air pressure telescopic rod in the market, the utility model provides a sealing structure of the electric air pressure telescopic rod, which comprises the following components: a housing, a drive mechanism, and a sealing mechanism. The sealing structure of the electric air pressure telescopic rod is characterized in that an external circuit is electrically connected with the motor assembly through the electric terminal in the working process. The motor assembly drives the driving screw to rotate, the screw rod is utilized to keep away, and the driving screw rod rotates to drive the telescopic rod to move up and down along the limiting cylinder. The bearing ring increases the structural strength of the housing, thereby increasing the structural stability of the sealing structure of the electric pneumatic telescopic rod. The two sealing rings are arranged between the shell and the driving cylinder, so that two airtight protection layers are formed, the air tightness of the sealing structure of the electric air pressure telescopic rod is greatly improved, and the air tightness requirement of the electric air pressure telescopic rod in the market is met.
Description
Technical Field
The utility model relates to the field of electric telescopic rods, in particular to a sealing structure of an electric pneumatic telescopic rod.
Background
The electric telescopic rod is also called an electric push rod, and is an electric driving device for converting the rotation motion of a motor into the linear reciprocating motion of the push rod. The electric push rod is a novel linear actuating mechanism mainly composed of a motor, a push rod, a control device and the like, and can realize remote control and centralized control. The electric push rod makes reciprocating motion in a certain range of travel, and converts the rotary motion of the motor into linear reciprocating motion. A group of link mechanisms are pushed to complete the switching work of the air door, the valve, the gate, the baffle plate and the like. The electric push rod is adopted as the actuating mechanism, so that an air source device and auxiliary equipment required by the pneumatic actuating mechanism can be reduced, and the weight of the actuating mechanism can be reduced. When the control opening degree is changed, power supply is needed, and power supply can be omitted when the required opening degree is reached, so that the electric push rod actuating mechanism has obvious energy-saving advantage compared with the pneumatic actuating mechanism from the aspect of energy saving.
However, the electric telescopic rod is a structural member which is necessarily arranged to achieve an electric opening and closing or telescopic action, and during the electric opening and closing or telescopic action, the electric telescopic rod can provide a supporting force or a pushing and pulling force of the opening and closing or telescopic load member. The supporting force of the opening and closing or telescopic load piece is mainly realized in two modes, namely a mode of an electric spring telescopic rod (an internal or external spring) and a mode of an electric air pressure telescopic rod (high-pressure air filled in the interior). Traditional electric pneumatic telescopic rods, for example, have the application number: CN200710028677.6, patent name is a technical scheme disclosed in the patent of air pressure telescopic rod, the sealing performance is poor, and the air tightness requirement of the electric air pressure telescopic rod in the market cannot be met.
Disclosure of utility model
Based on this, it is necessary to provide a sealing structure of an electric pneumatic telescopic rod against the technical problem that the sealing performance of the traditional electric pneumatic telescopic rod is poor and the air tightness requirement of the electric pneumatic telescopic rod in the market cannot be met.
A sealing structure of an electric air pressure expansion link, the sealing structure of the electric air pressure expansion link comprising: a housing, a drive mechanism, and a sealing mechanism;
The shell is of a hollow tubular structure with two open ends; an annular bearing groove, an annular mounting groove and two annular sealing grooves are formed in the inner wall of the shell;
The driving mechanism comprises a sealing cover, a motor assembly, a driving screw, a sliding sealing block, a limiting cylinder and a telescopic rod; the sealing cover is covered at one end of the shell and is detachably connected with the shell, and the sealing cover is provided with an electric terminal; the motor assembly, the driving screw, the sliding sealing block and the limiting cylinder are all accommodated in the shell; the motor component is connected with the shell and is electrically connected with an external circuit through the electric connection terminal; the driving shaft of the motor assembly is in driving connection with one end of the driving screw rod, and the sliding sealing block is connected with one end of the driving screw rod, which is far away from the motor assembly; one end of the limiting cylinder is connected with the motor assembly, and the driving screw rod is partially inserted into the limiting cylinder; the telescopic rod comprises a limit sliding block and a driving cylinder, and the driving cylinder is of a hollow cylinder structure with one end open; the opening end of the driving cylinder is connected with the limiting slide block, a threaded hole is formed in the limiting slide block, and the threaded hole is communicated with the driving cylinder; the driving screw is matched with the threaded hole, inserted into the threaded hole and in threaded connection with the limit sliding block; the sliding sealing block is inserted into the driving cylinder and is connected with the driving cylinder in a sliding way; the limiting slide block is of a polygonal column structure and is matched with the limiting cylinder, and the limiting slide block is inserted into the limiting cylinder and is in sliding connection with the limiting cylinder;
The sealing mechanisms are arranged in the shell and comprise end cover rings, a bearing ring and two sealing rings; the end cover ring, the bearing ring and the two sealing rings are sleeved on the driving cylinder and are in sliding connection with the driving cylinder; the annular mounting groove is formed in one end, far away from the sealing cover, of the shell, the end cover ring is matched with the annular mounting groove, and the end cover ring is partially inserted into the annular mounting groove and connected with the shell; the two sealing rings are respectively arranged on two sides of the bearing ring, the bearing ring is matched with the annular bearing groove, and the bearing ring is partially inserted into the annular bearing groove and connected with the shell; the sealing ring is matched with the annular sealing groove, and the sealing ring is partially inserted into the annular sealing groove and connected with the shell.
In one embodiment, an annular sealing groove is formed in the outer wall of the sliding sealing block, an annular elastic sealing ring is arranged in the annular sealing groove, and the annular elastic sealing ring is in sliding butt joint with the inner wall of the driving cylinder.
In one embodiment, the annular elastic sealing ring is a rubber sealing ring.
In one embodiment, the annular elastic sealing ring is a silicone sealing ring.
In one embodiment, the seal ring is provided with an inner seal lip and an outer seal lip, the inner seal lip being in abutment with the drive cylinder, the outer seal lip being in abutment with the housing.
In one embodiment, the driving cylinder and the limit sliding block are integrally formed.
In one embodiment, the limit sliding block is of a cuboid structure.
In one embodiment, annular reinforcing ribs are arranged on the outer wall of the shell.
In one embodiment, a plurality of annular reinforcing ribs are arranged on the outer wall of the shell.
In one embodiment, the outer wall of the shell is provided with anti-skid patterns.
The sealing structure of the electric air pressure telescopic rod is characterized in that an external circuit is electrically connected with the motor assembly through the electric terminal in the working process. The motor assembly drives the driving screw to rotate, the screw rod is utilized to keep away, and the driving screw rod rotates to drive the telescopic rod to move up and down along the limiting cylinder. The bearing ring increases the structural strength of the housing, thereby increasing the structural stability of the sealing structure of the electric pneumatic telescopic rod. The two sealing rings are arranged between the shell and the driving cylinder, so that two airtight protection layers are formed, the air tightness of the sealing structure of the electric air pressure telescopic rod is greatly improved, and the air tightness requirement of the electric air pressure telescopic rod in the market is met.
Drawings
FIG. 1 is a schematic structural view of a seal structure of an electro-pneumatic telescopic rod in one embodiment;
FIG. 2 is a schematic view of the sealing structure of the pneumatic electric telescopic rod according to another view of the embodiment of FIG. 1;
FIG. 3 is a schematic illustration of a disassembled structure of a seal structure of an electro-pneumatic telescopic rod according to an embodiment;
FIG. 4 is a schematic illustration of a disassembled structure of a seal structure of an electro-pneumatic telescopic rod according to an embodiment;
fig. 5 is a schematic diagram showing a disassembled structure of a sealing structure of an electric pneumatic telescopic rod according to another embodiment.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 to 5, the present utility model provides a sealing structure 10 of an electric pneumatic telescopic rod, the sealing structure 10 of the electric pneumatic telescopic rod includes: housing 100, drive mechanism 200, and sealing mechanism 300.
The housing 100 is a hollow tubular structure with both ends open. An annular force-bearing groove (not shown), an annular mounting groove (not shown) and two annular sealing grooves (not shown) are formed in the inner wall of the housing 100.
The driving mechanism 200 includes a sealing cover 210, a motor assembly 220, a driving screw 230, a sliding sealing block 240, a limiting cylinder 250, and a telescopic rod 260. The sealing cover 210 is covered at one end of the housing 100 and detachably connected with the housing 100, and the sealing cover 210 is provided with an electrical terminal 211. The motor assembly 220, the drive screw 230, the sliding seal 240, and the stopper tube 250 are all housed in the housing 100. The motor assembly 220 is connected to the housing 100, and the motor assembly 220 is electrically connected to an external circuit through the power connection terminal 211. The drive shaft of the motor assembly 220 is drivingly connected to one end of the drive screw 230, and the sliding seal 240 is connected to the end of the drive screw 230 remote from the motor assembly 220. One end of the limiting cylinder 250 is connected with the motor assembly 220, and the driving screw 230 is partially inserted into the limiting cylinder 250. The telescopic rod 260 comprises a limiting slide block 261 and a driving cylinder 262, and the driving cylinder 262 is of a hollow cylinder structure with one end open. The open end of the driving cylinder 262 is connected with the limit slider 261, and in this embodiment, the driving cylinder 262 and the limit slider 261 are integrally formed to increase the structural strength and structural stability of the telescopic rod 260.
The limiting slide block 261 is provided with a threaded hole 201, the threaded hole 201 is communicated with the driving cylinder 262, the driving screw 230 is matched with the threaded hole 201, the driving screw 230 is inserted into the threaded hole 201 and is in threaded connection with the limiting slide block 261, and the sliding sealing block 240 is inserted into the driving cylinder 262 and is in sliding connection with the driving cylinder 262. The limit slide 261 is of a polygonal column structure, the limit slide 261 is matched with the limit cylinder 250, and the limit slide 261 is inserted into the limit cylinder 250 and is in sliding connection with the limit cylinder 250. In this embodiment, the limit slider 261 has a rectangular parallelepiped structure.
The sealing mechanism 300 is disposed within the housing 100, and the sealing mechanism 300 includes an end cap ring 310, a load ring 320, and two seal rings 330. The end cap ring 310, the bearing ring 320 and the two sealing rings 330 are all sleeved on the driving cylinder 262 and are all connected with the driving cylinder 262 in a sliding manner. The annular mounting groove is formed at one end of the housing 100 far away from the sealing cover 210, the end cover ring 310 is matched with the annular mounting groove, and the end cover ring 310 is partially inserted into the annular mounting groove and connected with the housing 100. The two sealing rings 330 are respectively disposed at two sides of the bearing ring 320, the bearing ring 320 is adapted to the annular bearing groove, and the bearing ring 320 is partially inserted into the annular bearing groove and connected to the housing 100. The sealing ring 330 is matched with the annular sealing groove, and part of the sealing ring 330 is inserted into the annular sealing groove and connected with the shell 100.
In order to increase the sealing performance of the sliding seal block 240, in one embodiment, the outer wall of the sliding seal block 240 is provided with an annular sealing groove 202, the sliding seal block 240 is provided with an annular elastic sealing ring 241 in the annular sealing groove 202, and the annular elastic sealing ring 241 is slidably abutted against the inner wall of the driving cylinder 262. In the present embodiment, the annular elastic seal ring 241 is a rubber seal ring. In another embodiment, the annular elastic sealing ring 241 is a silicone sealing ring. In this way, the sealing performance of the sliding seal block 240 is increased.
In order to increase the sealing performance of the seal ring 330, in one embodiment, the seal ring 330 is provided with an inner seal lip 331 and an outer seal lip 332, the inner seal lip 331 abuts against the driving cylinder 262, and the outer seal lip 332 abuts against the housing 100. In this way, the sealing performance of the seal ring 330 is increased.
In order to increase the structural strength of the housing 100, in one embodiment, annular ribs are provided on the outer wall of the housing 100. In this embodiment, a plurality of annular reinforcing ribs are provided on the outer wall of the housing 100. In one embodiment, anti-slip corrugations are provided on the outer wall of the housing 100 to increase the anti-slip properties of the housing 100. In this manner, the structural strength and structural stability of the housing 100 are increased.
In operation, the sealing structure 10 of the electric pneumatic telescopic rod 260 is electrically connected to the motor assembly 220 through the electrical terminal 211. The motor assembly 220 drives the driving screw 230 to rotate, and the driving screw 230 rotates to drive the telescopic rod 260 to move up and down along the limiting cylinder 250 by utilizing the screw distance. The load ring 320 increases the structural strength of the housing 100 and thus increases the structural stability of the seal structure 10 of the electro-pneumatic telescopic link 260. The two sealing rings 330 are arranged between the housing 100 and the driving cylinder 262 to form two airtight protection layers, so that the airtight performance of the sealing structure 10 of the electric air pressure telescopic rod 260 is greatly improved, and the airtight performance requirement of the electric air pressure telescopic rod 260 in the market is met.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides a seal structure of electronic atmospheric pressure telescopic link which characterized in that includes: a housing, a drive mechanism, and a sealing mechanism;
The shell is of a hollow tubular structure with two open ends; an annular bearing groove, an annular mounting groove and two annular sealing grooves are formed in the inner wall of the shell;
The driving mechanism comprises a sealing cover, a motor assembly, a driving screw, a sliding sealing block, a limiting cylinder and a telescopic rod; the sealing cover is covered at one end of the shell and is detachably connected with the shell, and the sealing cover is provided with an electric terminal; the motor assembly, the driving screw, the sliding sealing block and the limiting cylinder are all accommodated in the shell; the motor component is connected with the shell and is electrically connected with an external circuit through the electric connection terminal; the driving shaft of the motor assembly is in driving connection with one end of the driving screw rod, and the sliding sealing block is connected with one end of the driving screw rod, which is far away from the motor assembly; one end of the limiting cylinder is connected with the motor assembly, and the driving screw rod is partially inserted into the limiting cylinder; the telescopic rod comprises a limit sliding block and a driving cylinder, and the driving cylinder is of a hollow cylinder structure with one end open; the opening end of the driving cylinder is connected with the limiting slide block, a threaded hole is formed in the limiting slide block, and the threaded hole is communicated with the driving cylinder; the driving screw is matched with the threaded hole, inserted into the threaded hole and in threaded connection with the limit sliding block; the sliding sealing block is inserted into the driving cylinder and is connected with the driving cylinder in a sliding way; the limiting slide block is of a polygonal column structure and is matched with the limiting cylinder, and the limiting slide block is inserted into the limiting cylinder and is in sliding connection with the limiting cylinder;
The sealing mechanisms are arranged in the shell and comprise end cover rings, a bearing ring and two sealing rings; the end cover ring, the bearing ring and the two sealing rings are sleeved on the driving cylinder and are in sliding connection with the driving cylinder; the annular mounting groove is formed in one end, far away from the sealing cover, of the shell, the end cover ring is matched with the annular mounting groove, and the end cover ring is partially inserted into the annular mounting groove and connected with the shell; the two sealing rings are respectively arranged on two sides of the bearing ring, the bearing ring is matched with the annular bearing groove, and the bearing ring is partially inserted into the annular bearing groove and connected with the shell; the sealing ring is matched with the annular sealing groove, and the sealing ring is partially inserted into the annular sealing groove and connected with the shell.
2. The seal structure of an electric pneumatic telescopic rod according to claim 1, wherein an annular seal groove is formed in the outer wall of the sliding seal block, an annular elastic seal ring is arranged in the annular seal groove of the sliding seal block, and the annular elastic seal ring is in sliding abutting connection with the inner wall of the driving cylinder.
3. The seal structure of an electro-pneumatic telescopic rod according to claim 2, wherein the annular elastic seal ring is a rubber seal ring.
4. The sealing structure of an electric pneumatic telescopic rod according to claim 2, wherein the annular elastic sealing ring is a silica gel sealing ring.
5. The sealing structure of an electric pneumatic telescopic rod according to claim 1, wherein the seal ring is provided with an inner seal lip and an outer seal lip, the inner seal lip being abutted against the drive cylinder, the outer seal lip being abutted against the housing.
6. The sealing structure of the electric pneumatic telescopic rod according to claim 1, wherein the driving cylinder and the limit sliding block are integrally formed.
7. The sealing structure of the electric pneumatic telescopic rod according to claim 1, wherein the limit sliding block is of a cuboid structure.
8. The sealing structure of an electric pneumatic telescopic rod according to claim 1, wherein annular reinforcing ribs are arranged on the outer wall of the housing.
9. The sealing structure of an electric pneumatic telescopic rod according to claim 8, wherein a plurality of annular reinforcing ribs are arranged on the outer wall of the housing.
10. The sealing structure of an electric pneumatic telescopic rod according to claim 1, wherein anti-skid patterns are arranged on the outer wall of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322760775.6U CN220870069U (en) | 2023-10-16 | 2023-10-16 | Sealing structure of electric pneumatic telescopic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322760775.6U CN220870069U (en) | 2023-10-16 | 2023-10-16 | Sealing structure of electric pneumatic telescopic rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220870069U true CN220870069U (en) | 2024-04-30 |
Family
ID=90809057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322760775.6U Active CN220870069U (en) | 2023-10-16 | 2023-10-16 | Sealing structure of electric pneumatic telescopic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220870069U (en) |
-
2023
- 2023-10-16 CN CN202322760775.6U patent/CN220870069U/en active Active
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