CN215674702U - Improved grease nozzle pressure release valve - Google Patents
Improved grease nozzle pressure release valve Download PDFInfo
- Publication number
- CN215674702U CN215674702U CN202121784225.2U CN202121784225U CN215674702U CN 215674702 U CN215674702 U CN 215674702U CN 202121784225 U CN202121784225 U CN 202121784225U CN 215674702 U CN215674702 U CN 215674702U
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- valve body
- hole
- valve
- rubber gasket
- closed side
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Abstract
The utility model discloses an improved grease nozzle pressure release valve which comprises a cylindrical valve body, wherein one end of the cylindrical valve body is open, the other end of the cylindrical valve body is closed, a through hole is formed in the closed side, a valve rod penetrates through the through hole, a pressing block is arranged at the position, close to the end, of the part, inside the cylindrical valve body, of the valve rod, a spring is arranged on the valve rod between the pressing block and the closed side of the cylindrical valve body, a valve tail with the size larger than that of the through hole is formed at the end, a spigot step is formed on the outer surface of the closed side of the cylindrical valve body, the surface of the spigot step is subjected to roughening treatment, a rubber gasket is arranged on the spigot step, and the position of the through hole in the rubber gasket is the same as the position of the through hole in the closed side of the cylindrical valve body. By adopting the design scheme of the utility model, the butter is not easy to overflow from the cylindrical valve body after being liquefied at high temperature, so that the waste of the butter is caused, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of Roots blower parts, and particularly relates to an improved grease nozzle pressure release valve.
Background
And a lubricating medium adopted by a part of Roots blower driving ends is grease. And lubricating grease is required to be filled into the cavity of the driving end by a grease gun at certain intervals until the cavity is full. Because the grease filling pressure is large, a pressure relief device is needed to protect parts such as an oil seal in the end cover. The existing grease relief valve can cause the situation of excessive oil drainage after the long-time high-pressure operation of a fan, so that the bearing cannot be lubricated enough to cause the bearing damage, and the main shaft is broken and the like.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the utility model aims to solve the problems that the existing grease relief valve has excessive oil drainage after a fan runs at high pressure for a long time, so that a bearing cannot be lubricated enough to cause bearing damage, a main shaft is broken and the like.
The technical scheme is as follows: the utility model adopts the following technical scheme:
the utility model provides an improved generation grease nipple relief valve, including the tube-type valve body, along the length direction of tube-type valve body, one end opening, the other end is sealed, the closed side is equipped with the through-hole, the valve rod passes the through-hole, the part of valve rod in the tube-type valve body sets up the briquetting in the position that is close to the tip, set up the spring on the valve rod between the closed side of briquetting and tube-type valve body, the valve rod forms the valve tail that the size is greater than the through-hole at the outer tip of tube-type valve body, surface at the tube-type valve body closed side forms the tang step, tang step surface is handled through the alligatoring, be equipped with the rubber packing ring on the tang step, through-hole position on the rubber packing ring is the same with the position of tube-type valve body closed side through-hole, and the internal diameter of the through-hole on the diameter more than or equal to the rubber packing ring of valve rod.
The technical scheme before does not possess the tang step, the direct clearance that passes through-hole and valve rod of butter after the liquefaction overflows, cause the waste of butter easily, and influence the use of other parts, after the technical scheme of tang step has been increased, cooperation through the rubber packing ring, make valve rod and rubber packing ring produce interference fit, the butter can no longer directly pass through the space between valve rod and through-hole and pass through, again because the tang step has passed through the alligatoring, can form the capillary hole that can lead to the outside after setting up the rubber packing ring, make gaseous still can be discharged, and the butter of liquefaction need just can overflow through the capillary hole, one has increased the distance that overflows, the degree of difficulty that spills over has also been controlled simultaneously, the function of holding back to the butter has been improved.
Furthermore, the rubber gasket is fixed in the seam allowance step, and a capillary channel capable of communicating the inside and the outside of the cylindrical valve body is formed between the fixed rubber gasket and the roughened seam allowance step.
Further, the size of the rubber gasket is smaller than that of the spigot step.
So that the rubber gasket can be attached to the bottom of the seam allowance step.
Furthermore, the circumference of the pressing block is close to the inner wall of the cylinder-shaped valve body, and a gap exists between the pressing block and the inner wall of the cylinder-shaped valve body.
The gas can reach the through hole of the closed side through the pressing block gap of the cylinder valve body, then reach the capillary hole and then reach the outside of the cylinder valve body.
Further, the distance between the pressing block and the valve tail is larger than the length of the spring in the relaxation state.
Make the spring be in the contraction state all the time, only internal pressure reaches specific degree, and after the solid state butter extrusion briquetting, the spring just can further contract, and after the butter liquefaction, the spring can relax, supports the closed side outside until the valve tail.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
by adopting the design scheme of the utility model, the butter is not easy to overflow from the cylindrical valve body after being liquefied at high temperature, so that the waste of the butter is caused, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the prior art.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
Example 1
As shown in the attached drawings 1 to 2, an improved grease nozzle relief valve comprises a cylindrical valve body 1, one end of the cylindrical valve body 1 is open, the other end of the cylindrical valve body is closed, a through hole is formed in a closed side 2, a valve rod 3 penetrates through the through hole, a pressing block 4 is arranged at a position, close to the end, of the part, inside the cylindrical valve body 1, of the valve rod 3, a spring 5 is arranged between the pressing block 4 and the closed side 2 of the cylindrical valve body 1 on the valve rod 3, a valve tail 6, with the size larger than that of the through hole, is formed at the end, outside the cylindrical valve body 1, of the valve rod 3, a spigot step 7 is formed on the outer surface of the closed side of the cylindrical valve body 1, the surface of the spigot step 7 is subjected to roughening treatment, a rubber gasket 8 is arranged on the spigot step 7, the position of the through hole in the rubber gasket 8 is the same as that of the through hole in the closed side of the cylindrical valve body 1, and the diameter of the valve rod 3 is larger than or equal to the inner diameter of the through hole in the rubber gasket 8.
The technical scheme before does not possess the tang step, the direct clearance that passes through-hole and valve rod of butter after the liquefaction overflows, cause the waste of butter easily, and influence the use of other parts, after the technical scheme of tang step has been increased, cooperation through the rubber packing ring, make valve rod and rubber packing ring produce interference fit, the butter can no longer directly pass through the space between valve rod and through-hole and pass through, again because the tang step has passed through the alligatoring, can form the capillary hole that can lead to the outside after setting up the rubber packing ring, make gaseous still can be discharged, and the butter of liquefaction need just can overflow through the capillary hole, one has increased the distance that overflows, the degree of difficulty that spills over has also been controlled simultaneously, the function of holding back to the butter has been improved.
The rubber gasket 8 is fixed in the spigot step, and a capillary channel (not shown) capable of communicating the inside of the cylinder-shaped valve body 1 and the outside of the cylinder-shaped valve body 1 is formed between the fixed rubber gasket 8 and the roughened spigot step 7.
The rubber gasket 8 is smaller in size than the spigot step 7.
So that the rubber gasket can be attached to the bottom of the seam allowance step.
The circumference of the pressing block 4 is close to the inner wall of the cylinder type valve body 1, and a gap exists between the pressing block and the inner wall of the cylinder type valve body 1.
The gas can reach the through hole of the closed side through the pressing block gap of the cylinder valve body, then reach the capillary hole and then reach the outside of the cylinder valve body.
The distance between the pressure block 4 and the valve tail 6 is larger than the length of the spring 5 in the relaxation state.
Make the spring be in the contraction state all the time, only internal pressure reaches specific degree, and after the solid state butter extrusion briquetting, the spring just can further contract, and after the butter liquefaction, the spring can relax, supports the closed side outside until the valve tail.
Claims (5)
1. The utility model provides an improved generation grease nipple relief valve, includes the tube-type valve body, along the length direction of tube-type valve body, one end opening, the other end is sealed, and the closed side is equipped with the through-hole, and the valve rod passes the through-hole, and the part of valve rod in the tube-type valve body sets up the briquetting in the position that is close to the tip, sets up the spring on the valve rod between the closed side of briquetting and tube-type valve body, and the valve rod forms the valve tail that the size is greater than the through-hole at the outer tip of tube-type valve body, its characterized in that: the outer surface of the closed side of the cylindrical valve body is provided with a spigot step, the surface of the spigot step is subjected to roughening treatment, the spigot step is provided with a rubber gasket, the position of a through hole in the rubber gasket is the same as that of a through hole in the closed side of the cylindrical valve body, and the diameter of the valve rod is larger than or equal to the inner diameter of the through hole in the rubber gasket.
2. The improved grease fitting relief valve of claim 1, wherein: the rubber gasket is fixed in the seam allowance step, and a capillary channel capable of communicating the inside and the outside of the cylindrical valve body is formed between the fixed rubber gasket and the roughened seam allowance step.
3. The improved grease fitting relief valve of claim 1, wherein: the size of the rubber gasket is smaller than that of the seam allowance step.
4. The improved grease fitting relief valve of claim 1, wherein: the circumference of the pressing block is close to the inner wall of the cylinder-shaped valve body, and a gap is reserved between the pressing block and the inner wall of the cylinder-shaped valve body.
5. The improved grease fitting relief valve of claim 1, wherein: the distance between the pressing block and the valve tail is larger than the length of the spring in the relaxation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121784225.2U CN215674702U (en) | 2021-08-02 | 2021-08-02 | Improved grease nozzle pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121784225.2U CN215674702U (en) | 2021-08-02 | 2021-08-02 | Improved grease nozzle pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215674702U true CN215674702U (en) | 2022-01-28 |
Family
ID=79983013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121784225.2U Active CN215674702U (en) | 2021-08-02 | 2021-08-02 | Improved grease nozzle pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215674702U (en) |
-
2021
- 2021-08-02 CN CN202121784225.2U patent/CN215674702U/en active Active
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