CN218052420U - Binding convenient for replacing sealing ring and wear-resistant strip of pneumatic valve - Google Patents
Binding convenient for replacing sealing ring and wear-resistant strip of pneumatic valve Download PDFInfo
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- CN218052420U CN218052420U CN202221733257.4U CN202221733257U CN218052420U CN 218052420 U CN218052420 U CN 218052420U CN 202221733257 U CN202221733257 U CN 202221733257U CN 218052420 U CN218052420 U CN 218052420U
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Abstract
A fastener for replacing a sealing ring and a wear-resistant strip of a pneumatic valve conveniently comprises a fastening ring and a fastening bolt, wherein the fastening ring comprises a main body part and two bolting parts, and the fastening bolt comprises a fastening screw and a fastening nut; the main body part is in an annular design with openings at two ends, and the two bolting parts are respectively and integrally connected to two ends of the main body part and extend towards the outer side of the main body part; the two bolting parts are also provided with bolting through holes penetrating through two sides, and the two bolting through holes are arranged in a left-right corresponding manner; the fastening screw sequentially penetrates through the two bolting through holes, and the fastening nut is sleeved on the fastening screw; the outer diameter of the main body part is larger than the inner diameter of the cylinder barrel and smaller than the outer diameter of the cylinder barrel. The utility model has the advantages that the wear-resistant strips on the piston are fastened in an auxiliary manner by designing the fastener, and the wear-resistant strips are fixed on the piston under the condition of not changing the length of the wear-resistant strips, so that the replacement of the sealing rings and the wear-resistant strips can be completed more conveniently and more efficiently; the utility model discloses the practicality is strong, has stronger popularization meaning.
Description
Technical Field
The utility model relates to a pneumatic valve repair tools especially relates to a binding convenient to pneumatic valve changes sealing washer and wear strip.
Background
The principle of the pneumatic valve is that compressed air enters a cylinder barrel to push a piston to move, an actuating mechanism is driven to rotate torque to change the opening and closing states of the valve, the piston is a pressed part of a cylinder, and a sealing ring is arranged for preventing two cavities of the piston from being communicated with each other. In addition, in order to improve the guidance of the cylinder, reduce the abrasion of the sealing ring and reduce the frictional resistance, the piston is usually additionally provided with a wear-resistant strip. However, after a long-term use, the sealing ring and the wear-resistant strip are worn and leaked to cause poor sealing performance, and the piston is difficult to push to operate, so the sealing ring and the wear-resistant strip need to be replaced.
Pneumatic valve on the market is mostly the structure of O type sealing washer and two wear strips, and its piston has two-layer recess, and the recess of the inside is adorned O type sealing washer, and outer recess then is used for adorning two wear strips. The pneumatic valve with the O-shaped sealing ring structure has the advantage that the sealing ring and the wear-resistant strip are very difficult to replace.
In general, after the O-ring and the wear-resistant strip are installed, the O-ring is always higher than the piston, so that the cylinder cannot be inserted. If external force is adopted to press down the whole piston, the O-shaped sealing ring can be kept as flat as the piston due to compression deformation, but the wear-resistant strip can deform and extend due to stress, and the functional effect of the wear-resistant strip is influenced. If the wear-resistant strips are cut short and then the piston is integrally pressed down, the O-shaped sealing ring bounces after entering the cylinder barrel, the wear-resistant strips can be shortened, the abrasion to the cylinder barrel can be increased, and the sealing effect is reduced. In addition, because the outer layer groove is shallow, the two wear-resistant strips are easy to be separated from the grooves and clamped by the cylinder barrel during installation.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a fastener for facilitating replacement of a seal ring and a wear strip of a pneumatic valve, which overcomes the disadvantages of the prior art.
The utility model provides a binding convenient to pneumatic valve changes sealing washer and wear-resisting strip for pneumatic valve's portable is maintained, pneumatic valve includes the cylinder and installs the piston in the cylinder, the piston is provided with the annular groove outward, be equipped with the sealing washer in the recess, the sealing washer is equipped with wear-resisting strip outward. The fastener convenient for replacing the sealing ring and the wear-resistant strip is arranged on the outer side of the wear-resistant strip and comprises a fastening ring and a fastening bolt, the fastening ring comprises a main body part and two bolting parts, and the fastening bolt comprises a fastening screw and a fastening nut. The main part is the annular design of both ends open-ended, two bolted connection part be integrated connection respectively in the both ends of main part and all extend to the main part outside. And bolt through holes penetrating through two sides are formed in the two bolt connecting parts, and the bolt through holes are correspondingly arranged left and right. The fastening screw sequentially penetrates through the two bolting through holes, and the fastening nut is sleeved on the fastening screw. The outer diameter of the main body part is larger than the inner diameter of the cylinder barrel and smaller than the outer diameter of the cylinder barrel.
Further, the inner diameter of the main body portion is identical to the inner diameter of the cylinder.
Furthermore, the fastening ring is made of stainless steel.
To sum up, the utility model relates to a binding convenient to pneumatic valve changes sealing washer and wear strip's beneficial effect lies in: the wear-resistant strips on the piston are fastened in an auxiliary manner by designing the fastener, and the wear-resistant strips are fixed on the piston under the condition of not changing the length of the wear-resistant strips, so that the replacement of the sealing rings and the wear-resistant strips can be completed more conveniently and more efficiently; the fastening rings with various sizes can be matched with starting valves with different sizes to replace the sealing rings and the wear-resistant strips; the fastening ring made of stainless steel has high-strength rigidity and toughness, so that the manufacturing cost is greatly controlled, and the fastening performance of the fastener is remarkably enhanced; the utility model discloses the practicality is strong, has stronger popularization meaning.
Drawings
Fig. 1 is a schematic structural view of a fastener for facilitating replacement of a seal ring and a wear strip of a pneumatic valve according to the present invention;
fig. 2 is an exploded view of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 to 2, the present invention provides a fastener 100 for facilitating replacement of a seal ring and a wear strip of a pneumatic valve, which is used for convenient maintenance of the pneumatic valve (not shown). The pneumatic valve comprises a cylinder (not shown) and a piston (not shown), a groove (not shown) is arranged on the outer peripheral surface of the piston, a sealing ring (not shown) is arranged in the groove, and a wear-resistant strip (not shown) is arranged outside the sealing ring. The fastener 100 for facilitating replacement of the seal ring and the wear strip includes a fastening ring 10 and a fastening bolt 20, the fastening ring 10 includes a main body portion 11 and two bolting portions 12, and the fastening bolt 20 includes a fastening screw 21 and a fastening nut 22.
The main body 11 is of an annular design with two open ends, and the two bolting parts 12 are respectively integrally connected to two ends of the main body 11 and extend towards the outside of the main body 11. The two bolting parts 12 are provided with bolting through holes 13 penetrating through two sides, and the two bolting through holes 13 are arranged in a left-right corresponding manner. The fastening screw 21 sequentially passes through the two bolting through holes 13, and the fastening nut 22 is sleeved on the fastening screw 21. The perimeter of the main body part 11 is consistent with the length of the piston and the wear strip, and the height of the main body part 11 is larger than the thickness of the piston, so that the main body part 11 can just completely cover the whole outer circumferential surface of the piston. The bolt 12, the fastening screw 21 and the fastening nut 22 cooperate to lock the main body 11 to fasten and fix the piston and the wear strip embedded in the piston groove, thereby facilitating subsequent cylinder sleeving.
In this embodiment, the fastening ring 10 has a plurality of sizes, and the fastening ring 10 is made of stainless steel. When the sealing ring and the wear-resistant strip of the pneumatic valve are actually replaced, the fastening ring 10 with a proper size can be selected according to the size specification of the piston for auxiliary fastening. The fastening ring 10 is made of stainless steel, and the raw materials are easily available, so that the fastener is convenient to manufacture; and the fastening ring 10 of stainless steel material has both a great toughness to ensure the fastening effect of the fastener and a sufficient rigidity to facilitate its withdrawal from the piston by knocking during the replacement process.
The utility model discloses when using, at first make the piston stand upside down on the maintenance platform, with sealing washer, wear-resisting strip gomphosis in the recess of piston to locate the outside of piston with tighrening ring 10 cover. The fastening ring 10 is locked by the fastening bolt 20, so that the fastening ring 10 is firmly fixed on the outer circumferential surface of the piston.
The fastening ring 10 is then lowered slightly by knocking so that the bottom of the piston is higher than the fastening ring 10. Then the cylinder is inverted and sleeved at the bottom of the piston, so that the top end of the cylinder is connected with the fastening ring 10.
The bottom of the cylinder is then knocked down, causing both the cylinder and the fastening ring 10 to descend progressively. At this time, the cylinder is gradually sleeved on the piston, and the fastening ring 10 is gradually separated from the piston. When the cylinder barrel is knocked, a force is applied vertically downwards along the center of the bottom of the cylinder barrel, so that the problem of deflection when the cylinder barrel is sleeved is avoided; and in the process that the cylinder barrel replaces the fastening ring 10 and is gradually sleeved on the piston, a screwdriver is used for assisting in pressing down the wear-resistant strips to prevent the wear-resistant strips from loosening from the grooves of the piston.
And finally, when the cylinder barrel is completely sleeved on the piston and the fastening ring 10 is completely separated from the piston, the replacement of the sealing ring and the wear strip on the pneumatic valve is completed, and the fastening bolt 20 is opened to take out the fastening ring 10.
To sum up, the utility model relates to a binding 100 convenient to pneumatic valve changes sealing washer and wear strip's beneficial effect lies in: the wear-resistant strips on the piston are fastened in an auxiliary manner by designing the fastener, and the wear-resistant strips are fixed on the piston under the condition that the length of the wear-resistant strips is not changed, so that the replacement of the sealing rings and the wear-resistant strips can be completed more conveniently and more efficiently; the fastening rings 10 with various sizes can be matched with starting valves with different sizes to replace sealing rings and wear-resistant strips; the stainless steel material enables the fastening ring 10 to have high-strength rigidity and toughness, so that the manufacturing cost is greatly controlled, and the fastening performance of the fastener is remarkably enhanced; the utility model discloses the practicality is strong, has stronger popularization meaning.
The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention. Therefore, the protection scope of the utility model should be subject to the appended claims.
Claims (3)
1. The utility model provides a binding convenient to pneumatic valve changes sealing washer and wear strip for pneumatic valve's portable is maintained, its characterized in that: the pneumatic valve comprises a cylinder barrel and a piston arranged in the cylinder barrel, an annular groove is arranged outside the piston, a sealing ring is arranged in the groove, and a wear-resistant strip is arranged outside the sealing ring; the fastener convenient for replacing the sealing ring and the wear-resistant strip is arranged on the outer side of the wear-resistant strip and comprises a fastening ring and a fastening bolt, the fastening ring comprises a main body part and two bolting parts, and the fastening bolt comprises a fastening screw and a fastening nut; the main body part is in an annular design with openings at two ends, and the two bolting parts are respectively and integrally connected to two ends of the main body part and extend towards the outer side of the main body part; the two bolting parts are also provided with bolting through holes penetrating through two sides, and the two bolting through holes are arranged in a left-right corresponding manner; the fastening screw sequentially penetrates through the two bolting through holes, and the fastening nut is sleeved on the fastening screw; the outer diameter of the main body part is larger than the inner diameter of the cylinder barrel and smaller than the outer diameter of the cylinder barrel.
2. The fastener for facilitating replacement of seal and wear strip for pneumatic valves as claimed in claim 1, wherein: the inner diameter of the main body part is consistent with the inner diameter of the cylinder barrel.
3. The fastener for facilitating replacement of a seal and wear strip for a pneumatically actuated valve as claimed in claim 1, wherein: the fastening ring is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221733257.4U CN218052420U (en) | 2022-07-06 | 2022-07-06 | Binding convenient for replacing sealing ring and wear-resistant strip of pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221733257.4U CN218052420U (en) | 2022-07-06 | 2022-07-06 | Binding convenient for replacing sealing ring and wear-resistant strip of pneumatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218052420U true CN218052420U (en) | 2022-12-16 |
Family
ID=84436355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221733257.4U Active CN218052420U (en) | 2022-07-06 | 2022-07-06 | Binding convenient for replacing sealing ring and wear-resistant strip of pneumatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218052420U (en) |
-
2022
- 2022-07-06 CN CN202221733257.4U patent/CN218052420U/en active Active
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