CN215370995U - Bolt with from pressure release function - Google Patents
Bolt with from pressure release function Download PDFInfo
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- CN215370995U CN215370995U CN202121703046.1U CN202121703046U CN215370995U CN 215370995 U CN215370995 U CN 215370995U CN 202121703046 U CN202121703046 U CN 202121703046U CN 215370995 U CN215370995 U CN 215370995U
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- rotating shaft
- pressure
- groove
- cylindrical cavity
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Abstract
The utility model discloses a bolt with a self-pressure-relief function, which comprises a screw rod and a nut, wherein the vertical ends of the screw rod and the nut are provided with cylindrical cavities, the bottoms of the cylindrical cavities are provided with through grooves penetrating through the screw rod, the vertical end of the cylindrical cavity is provided with a rotating shaft in a penetrating way, the top of the rotating shaft is fixedly connected with a rotating block, and the outer surface wall of the bottom of the rotating shaft is fixedly connected with a hexagonal block. According to the utility model, when pressure relief is required, the rotating block and the rotating shaft can be rotated to be unscrewed until the hexagonal block is clamped with the hexagonal groove, the rotating block can be rotated to drive the screw to unscrew, when the rotating shaft moves upwards, the piston block is impacted by the pressure in the kiln or the reaction chamber to move upwards, when the piston block props against the rotating shaft after moving upwards, the pressure relief channel is communicated with the cylindrical cavity, and the pressure in the kiln or the reaction chamber presses the sealing block downwards through the pressure relief channel to be communicated with the pressure relief groove, so that the pressure relief effect is achieved.
Description
Technical Field
The utility model relates to the technical field of bolts, in particular to a bolt with a self-pressure-relief function.
Background
The bolt is a fastener consisting of a head part and a screw (a cylinder with external threads), and is matched with a nut and used for fastening and connecting two parts with through holes.
In the industries of kiln firing, metal heat treatment and the like, the pressure in a sealing mechanism needs to be controlled, so that a reaction chamber is continuously kept in a certain pressure range, a corresponding pressure control and maintaining device needs to be configured, a bolt is installed on the wall of the kiln or the reaction chamber, when the pressure in the kiln or the reaction chamber is too high, the bolt is unscrewed to open a pressure relief opening to complete pressure relief, when the bolt is unscrewed to relieve the pressure, the pressure in the kiln or the reaction chamber is too high, the bolt is not convenient to control to be unscrewed out, the environment is easily damaged, and the operation is difficult for a worker.
Disclosure of Invention
The utility model aims to: in order to solve the problems, a bolt with a self-pressure relief function is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a bolt with a self-pressure-relief function comprises a screw rod and a screw cap, wherein the vertical ends of the screw rod and the screw cap are provided with cylindrical cavities, the bottoms of the cylindrical cavities are provided with through grooves penetrating through the screw rod, the vertical ends of the cylindrical cavities are provided with rotating shafts in a penetrating way, the tops of the rotating shafts are fixedly connected with rotating blocks, the outer surface wall at the bottom of each rotating shaft is fixedly connected with a hexagonal block, the outer surface wall of each rotating shaft is connected with the inner surface wall of each cylindrical cavity in a rotating way through thread grooves, the inner surface wall of each cylindrical cavity is connected with a piston block in a sliding way, the bottom of each rotating shaft is abutted against the top of the piston block, the bottoms of the piston blocks are fixedly connected with sealing columns, the outer surface wall of each sealing column is attached to the inner surface wall of each cylindrical cavity, the inner surface wall of the screw rod is provided with two groups of cylindrical grooves, pressure-relief channels and pressure-relief grooves are communicated between the two groups of cylindrical grooves, and the inner surface walls of the two groups of the cylindrical grooves are elastically connected with sealing blocks through springs, the sealing block is abutted against the pressure relief channel and the bottom of the pressure relief groove.
As a further description of the above technical solution:
the cylindrical cavity is provided with a hexagonal groove matched with the hexagonal block.
As a further description of the above technical solution:
and a polygonal groove is formed in the top of the rotating block.
As a further description of the above technical solution:
the piston block is connected with the sliding groove in a sliding manner through a sliding strip on the outer surface wall.
As a further description of the above technical solution:
the bottom of the sealing block and the bottom of the cylindrical groove are fixedly connected with a telescopic rod, and the spring is sleeved on the outer surface wall of the telescopic rod.
As a further description of the above technical solution:
and the top of the piston block is provided with a guide groove matched with the rotating shaft.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
according to the utility model, when pressure relief is required, the rotating block and the rotating shaft can be rotated to be unscrewed until the hexagonal block is clamped with the hexagonal groove, the rotating block can be rotated to drive the screw to unscrew, when the rotating shaft moves upwards, the piston block is impacted by the pressure in the kiln or the reaction chamber to move upwards, when the piston block props against the rotating shaft after moving upwards, the pressure relief channel is communicated with the cylindrical cavity, and the pressure in the kiln or the reaction chamber presses the sealing block downwards through the pressure relief channel to be communicated with the pressure relief groove, so that the pressure relief effect is achieved.
Drawings
FIG. 1 illustrates a schematic diagram of a structure provided in accordance with an embodiment of the present invention;
FIG. 2 illustrates a schematic top view of a structure provided in accordance with an embodiment of the present invention;
fig. 3 shows an enlarged schematic structural diagram at a provided in accordance with an embodiment of the present invention.
Illustration of the drawings:
1. a screw; 2. a spring; 3. a nut; 4. rotating the block; 5. a hexagonal groove; 6. a thread groove; 7. a rotating shaft; 8. a cylindrical cavity; 9. a chute; 10. a pressure relief channel; 11. a piston block; 12. a sealing block; 13. a slide bar; 14. sealing the column; 15. a slow-pressing groove; 16. a cylindrical groove; 17. hexagonal block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a bolt with a self-pressure-relief function comprises a screw rod 1 and a screw cap 3, wherein a cylindrical cavity 8 is arranged at the vertical end of the screw rod 1 and the screw cap 3, a through groove penetrating through the screw rod 1 is arranged at the bottom of the cylindrical cavity 8, a rotating shaft 7 is arranged at the vertical end of the cylindrical cavity 8 in a penetrating way, a rotating block 4 is fixedly connected at the top of the rotating shaft 7, a hexagonal block 17 is fixedly connected with the outer surface wall at the bottom of the rotating shaft 7, the outer surface wall of the rotating shaft 7 is screwed and connected with the inner surface wall of the cylindrical cavity 8 through a thread groove 6, a piston block 11 is slidably connected with the inner surface wall of the cylindrical cavity 8, the bottom of the rotating shaft 7 is abutted against the top of the piston block 11, a sealing column 14 is fixedly connected with the bottom of the piston block 11, the outer surface wall of the sealing column 14 is attached to the inner surface wall of the cylindrical cavity 8, two groups of cylindrical grooves 16 are arranged on the inner surface wall of the screw rod 1, a pressure-relief channel 10 and a pressure-relief channel 15 are communicated between the two groups of the cylindrical cavities 16, the inner surface walls of the two groups of the cylindrical grooves 16 are elastically connected with a sealing block 12 through springs 2, the seal block 12 abuts against the pressure relief passage 10 and the bottom of the pressure relief groove 15.
Specifically, as shown in fig. 1, a hexagonal groove 5 matched with the hexagonal block 17 is formed in the cylindrical cavity 8, and when the rotating shaft 7 is unscrewed, the hexagonal block 17 is driven to be clamped with the hexagonal groove 5, and the rotating block 4 is continuously rotated to drive the screw rod 1 to rotate.
Specifically, as shown in fig. 2, a polygonal slot is formed at the top of the rotating block 4, so that the rotating block 4 can be selected conveniently.
Specifically, as shown in fig. 1, sliding grooves 9 are formed in both sides of the cylindrical cavity 8, and the piston block 11 is slidably connected with the sliding grooves 9 through a sliding strip 13 on the outer surface wall.
Specifically, as shown in fig. 1, the bottom of the sealing block 12 and the bottom of the cylindrical groove 16 are fixedly connected with a telescopic rod, and the spring 2 is sleeved on the outer surface wall of the telescopic rod, so that the stability of the spring 2 is enhanced.
Specifically, as shown in fig. 1, a guide groove matched with the rotating shaft 7 is formed at the top of the piston block 11, so that the rotating shaft 7 is tightly attached to the piston block 11.
The working principle is as follows: during the use, accessible rotates turning block 4 and pivot 7 when needs pressure release, unscrew it to hexagonal piece 17 and 5 joints in hexagonal groove, accessible rotates turning block 4 this moment and drives screw rod 1 and unscrew, when pivot 7 rebound, piston block 11 receives the impact of kiln or the inside pressure of reacting chamber, make piston block 11 move up, when piston block 11 withstands pivot 7 after moving up, slowly press passageway 10 and cylindrical cavity 8 intercommunication, kiln or the inside pressure of reacting chamber make its and slowly press the groove 15 intercommunication through slowly pressing passageway 10 down sealed piece 12, reach the effect of pressure release.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The bolt with the self-pressure-relief function comprises a screw rod (1) and a nut (3), and is characterized in that a cylindrical cavity (8) is formed in the vertical ends of the screw rod (1) and the nut (3), a through groove penetrating through the screw rod (1) is formed in the bottom of the cylindrical cavity (8), a rotating shaft (7) penetrates through the vertical end of the cylindrical cavity (8), a rotating block (4) is fixedly connected to the top of the rotating shaft (7), a hexagonal block (17) is fixedly connected to the outer surface wall of the bottom of the rotating shaft (7), the outer surface wall of the rotating shaft (7) is rotatably connected with the inner surface wall of the cylindrical cavity (8) through a thread groove (6), a piston block (11) is slidably connected to the inner surface wall of the cylindrical cavity (8), the bottom of the rotating shaft (7) is abutted to the top of the piston block (11), a sealing column (14) is fixedly connected to the bottom of the piston block (11), the outer surface wall of the sealing column (14) is attached to the inner surface wall of the cylindrical cavity (8), two sets of column-shaped grooves (16) have been seted up to the table wall in screw rod (1), and are two sets of communicate between column-shaped groove (16) and column-shaped chamber (8) and have slowly pressing passageway (10) and slowly pressing groove (15), and are two sets of table wall all has sealed piece (12) through spring (2) elastic connection in column-shaped groove (16), sealed piece (12) and slowly press passageway (10) and slowly pressing groove (15) bottom butt.
2. The bolt with the function of self pressure relief according to claim 1, characterized in that the cylindrical cavity (8) is provided with a hexagonal groove (5) cooperating with a hexagonal block (17).
3. The bolt with the self-pressure-relief function according to claim 1, characterized in that a polygonal groove is formed at the top of the rotating block (4).
4. The bolt with the self-pressure-relief function according to claim 1, wherein sliding grooves (9) are formed in both sides of the cylindrical cavity (8), and the piston block (11) is connected with the sliding grooves (9) in a sliding mode through a sliding strip (13) on the outer surface wall.
5. The bolt with the self-pressure-relief function according to claim 1, wherein a telescopic rod is fixedly connected to the bottom of the sealing block (12) and the bottom of the cylindrical groove (16), and the spring (2) is sleeved on the outer surface wall of the telescopic rod.
6. The bolt with the self-pressure-relief function according to claim 1, characterized in that a guide groove matched with the rotating shaft (7) is formed at the top of the piston block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121703046.1U CN215370995U (en) | 2021-07-26 | 2021-07-26 | Bolt with from pressure release function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121703046.1U CN215370995U (en) | 2021-07-26 | 2021-07-26 | Bolt with from pressure release function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370995U true CN215370995U (en) | 2021-12-31 |
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ID=79611820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121703046.1U Active CN215370995U (en) | 2021-07-26 | 2021-07-26 | Bolt with from pressure release function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199631A (en) * | 2022-07-26 | 2022-10-18 | 靖江市飞天紧固件制造有限公司 | Pressure relief type bolt structure |
-
2021
- 2021-07-26 CN CN202121703046.1U patent/CN215370995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199631A (en) * | 2022-07-26 | 2022-10-18 | 靖江市飞天紧固件制造有限公司 | Pressure relief type bolt structure |
| CN115199631B (en) * | 2022-07-26 | 2023-09-19 | 靖江市飞天紧固件制造有限公司 | Pressure relief type bolt structure |
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