CN214726138U - Cylinder structure of adjustable needle valve length - Google Patents
Cylinder structure of adjustable needle valve length Download PDFInfo
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- CN214726138U CN214726138U CN202120859196.5U CN202120859196U CN214726138U CN 214726138 U CN214726138 U CN 214726138U CN 202120859196 U CN202120859196 U CN 202120859196U CN 214726138 U CN214726138 U CN 214726138U
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- needle
- valve
- valve needle
- counter bore
- adjusting block
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Abstract
The utility model relates to the technical field of cylinders, in particular to a cylinder structure with an adjustable needle valve length, which comprises a cylinder body and a piston which is positioned in the cylinder body and can move up and down along the height direction of the cylinder body; the piston is internally provided with a first counter bore, the first counter bore is provided with a first counter bore part, the first counter bore part is sequentially provided with a valve needle pressing part and a valve needle adjusting block from top to bottom, the valve needle pressing part is in threaded connection with the counter bore part of the first counter bore part, the valve needle adjusting block can move up and down along the first counter bore part, and an elastic part for driving the valve needle adjusting block to move towards the valve needle pressing part is arranged between the valve needle adjusting block and the first counter bore part; the valve needle adjusting block is clamped with a valve needle body penetrating out of the piston. Compared with the prior art, the cylinder of this application simple structure adjusts convenient operation, need not to dismantle too much spare part, shortens to adjust consuming time, improves work efficiency, and adjustment needle valve length is more convenient.
Description
Technical Field
The utility model relates to a cylinder technical field, concretely relates to cylinder structure of adjustable needle valve length.
Background
The structure of the existing cylinder comprises a cylinder body, a piston which is located in the cylinder body and can reciprocate up and down and a valve needle which is clamped in the piston are arranged, in order to realize the scheme of clamping the valve needle, a first counter sink is generally arranged in the middle of the piston, an internal thread can be arranged on the counter sink part of the first counter sink, a valve needle adjusting block and a valve needle pressing block can be arranged in the counter sink part of the first counter sink, a second counter sink is arranged on the valve needle adjusting block, the valve needle is clamped on the valve needle adjusting block, an external thread matched with the internal thread is arranged on the peripheral side surface of the valve needle adjusting block, in order to prevent the valve needle from moving up and down, the valve needle pressing block is in threaded connection with the counter sink part of the first counter sink, and the valve needle pressing block is arranged above the valve needle adjusting block, so that the valve needle in the valve needle adjusting block is pressed by the valve needle pressing block, and the valve needle is prevented from moving.
Foretell cylinder structure if the length that the needle stretches out needs to be adjusted, then need dismantle the needle briquetting earlier, then rotate needle adjusting block rebound take the altitude, make the needle rise in the direction of height, still need install the needle briquetting again at last, just so can accomplish the operation of whole adjustment needle height, and this kind of structure operation of adjustment needle height is very troublesome, and is consuming time long, and work efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to be not enough among the prior art, and provide the cylinder structure of adjustable needle valve length that work efficiency is high.
The purpose of the utility model is realized through the following technical scheme: the application provides a cylinder structure capable of adjusting the length of a needle valve, which comprises a cylinder body and a piston, wherein the piston is positioned in the cylinder body and can move up and down along the height direction of the cylinder body; the piston is internally provided with a first counter bore, the first counter bore is provided with a first counter bore part, the first counter bore part is sequentially provided with a valve needle pressing part and a valve needle adjusting block from top to bottom, the valve needle pressing part is in threaded connection with the counter bore part of the first counter bore part, the valve needle adjusting block can move up and down along the first counter bore part, and an elastic part for driving the valve needle adjusting block to move towards the valve needle pressing part is arranged between the valve needle adjusting block and the first counter bore part; the valve needle adjusting block is clamped with a valve needle body penetrating out of the piston.
Wherein, the elastic piece is the elastic cushion block.
Wherein, the elastic cushion block is prepared by rubber or silica gel materials.
Wherein, the elastic cushion block, the valve needle adjusting block and the valve needle pressing piece are coaxially arranged.
The bottom end of the elastic part props against the inner bottom surface of the first counter sink head part, the top end of the elastic part props against the bottom surface of the valve needle adjusting block, and the top surface of the valve needle adjusting block props against the bottom surface of the valve needle pressing part.
The outer diameter of the valve needle adjusting block is smaller than the inner diameter of the first countersunk head portion.
Wherein, the second counter bore has been seted up to the needle adjusting block, and the second counter bore is equipped with the heavy head portion of second, and the needle body is equipped with the head, and the head card of needle body is held in the heavy head portion of second.
Wherein the depth of the second countersink is equal to or less than the thickness of the head of the valve needle body.
The utility model has the advantages that: according to the cylinder structure with the adjustable needle valve length, when the height of the needle valve body needs to be adjusted, the needle valve pressing piece only needs to be rotated to move upwards, the elastic piece in the first counter sink head part drives the needle valve adjusting block to move upwards, so that the needle valve body clamped on the needle valve adjusting block moves upwards together, and the adjustment of the length of the needle valve body extending out of the piston is completed;
compared with the prior art, the cylinder of this application simple structure adjusts convenient operation, need not to dismantle too much spare part, shortens to adjust consuming time, improves work efficiency, and adjustment needle valve length is more convenient.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic diagram of a cylinder structure for adjusting the length of a needle valve in the embodiment.
Description of the drawings: the valve comprises a cylinder body 1, a piston 2, a first counter sink head part 21, a valve needle pressing part 3, a valve needle adjusting block 4, a second counter sink head part 41, an elastic part 5, a valve needle body 6 and a head part 61.
Detailed Description
The invention will be further described with reference to the following examples.
The utility model discloses a cylinder structure's of adjustable needle valve length embodiment please see figure 1, including cylinder body 1 with be located cylinder body 1 in can follow cylinder body 1's direction of height up-and-down motion's piston 2. It should be noted that the cylinder body 1 is provided with a movable cavity therein, a sealing structure is formed between the piston 2 and the cavity wall of the movable cavity, and the piston 2 can move up and down along the height direction of the cylinder body 1, which is a conventional cylinder structure, and a person skilled in the art can easily know the structure and principle of the cylinder structure.
In this embodiment, a first counter bore is formed in the piston 2, the first counter bore is provided with a first counter bore portion 21, the valve needle pressing member 3 and the valve needle adjusting block 4 are sequentially arranged in the first counter bore portion 21 from top to bottom, and the valve needle pressing member 3 is in threaded connection with the first counter bore portion 21. Different from the prior art, the valve needle adjusting block 4 of the present embodiment can move up and down along the first countersunk head portion 21, that is, there is no connecting structure between the valve needle adjusting block 4 and the side wall of the first countersunk head portion 21, and in order to enable the valve needle adjusting block 4 to smoothly slide up and down in the first countersunk head portion 21, the outer diameter of the valve needle adjusting block 4 can be set to be smaller than the inner diameter of the first countersunk head portion 21, so that a certain gap exists between the valve needle adjusting block 4 and the side wall of the first countersunk head portion 21, and the moving smoothness of the valve needle adjusting block 4 is further improved.
In the present embodiment, the needle adjustment block 4 retains a needle body 6 that extends through the piston 2. The valve needle adjusting block 4 is provided with a second counter bore, the second counter bore is provided with a second counter-head part 41, the valve needle body 6 is provided with a head part 61, and the head part 61 of the valve needle body 6 is clamped in the second counter-head part 41.
As an improvement, an elastic member 5 for driving the valve needle adjusting block 4 to move towards the valve needle pressing member 3 is arranged between the valve needle adjusting block 4 and the bottom of the first counter sink portion 21, the bottom end of the elastic member 5 abuts against the inner bottom surface of the first counter sink portion 21, the top end of the elastic member 5 abuts against the bottom surface of the valve needle adjusting block 4, and the top surface of the valve needle adjusting block 4 abuts against the bottom surface of the valve needle pressing member 3. In this embodiment, the elastic member 5 is an elastic cushion block, and specifically, the elastic cushion block may be made of rubber or silicone material. The elastic member 5 may be other elastic members such as a spring, and may be selected according to actual requirements.
The cylinder structure of adjustable needle valve length of this embodiment, when the height of needle body 6 was adjusted to needs, only need rotating needle casting die 3, made needle casting die 3 rebound, the elastic component 5 in the first heavy head portion 21 then can order about needle adjusting block 4 rebound to the needle body 6 upward movement in the lump that the messenger held on needle adjusting block 4 is held, thereby accomplishes the regulation that needle body 6 stretches out piston 2 length.
In the present embodiment, in order to prevent the needle from being stuck, the resilient pad, the needle adjusting block 4, and the needle pressing member 3 are coaxially disposed.
In the present embodiment, when the depth of the second countersunk portion 41 is equal to the thickness of the head portion 61 of the needle body 6, and the resilient cushion block abuts against the needle adjustment block 4, the top surface of the head portion 61 of the needle body 6 abuts against the bottom surface of the needle pressing member 3, so as to further prevent the needle body 6 from moving, similarly, when the depth of the second countersunk portion 41 is equal to the thickness of the head portion 61 of the needle body 6, only the top surface of the head portion 61 of the needle body 6 abuts against the bottom surface of the needle pressing member 3, so as to prevent the needle from moving.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a cylinder structure of adjustable needle valve length which characterized in that: the piston type air cylinder comprises an air cylinder body and a piston which is positioned in the air cylinder body and can move up and down along the height direction of the air cylinder body;
a first counter bore is formed in the piston, a first counter bore is formed in the first counter bore, a valve needle pressing piece and a valve needle adjusting block are sequentially arranged in the first counter bore from top to bottom, the valve needle pressing piece is in threaded connection with the first counter bore, the valve needle adjusting block can move up and down along the first counter bore, and an elastic piece for driving the valve needle adjusting block to move towards the valve needle pressing piece is arranged between the valve needle adjusting block and the first counter bore;
the valve needle adjusting block is clamped with a valve needle body penetrating out of the piston.
2. The cylinder structure of adjustable needle valve length of claim 1, characterized in that: the elastic piece is an elastic cushion block.
3. The cylinder structure of adjustable needle valve length of claim 2, characterized in that: the elastic cushion block is made of rubber or silica gel materials.
4. The cylinder structure of adjustable needle valve length of claim 2, characterized in that: the elastic cushion block, the valve needle adjusting block and the valve needle pressing piece are coaxially arranged.
5. The cylinder structure of adjustable needle valve length of claim 1, characterized in that: the bottom end of the elastic part props against the inner bottom surface of the first counter sink head part, the top end of the elastic part props against the bottom surface of the valve needle adjusting block, and the top surface of the valve needle adjusting block props against the bottom surface of the valve needle pressing part.
6. The cylinder structure of adjustable needle valve length of claim 1, characterized in that: the outer diameter of the valve needle adjusting block is smaller than the inner diameter of the first counter sink head part.
7. The cylinder structure of adjustable needle valve length of claim 1, characterized in that: the needle adjusting block is provided with a second counter bore, the second counter bore is provided with a second counter bore portion, the needle body is provided with a head portion, and the head portion of the needle body is clamped in the second counter bore portion.
8. The cylinder structure of adjustable needle valve length of claim 7, characterized in that: the depth of the second countersink portion is equal to or less than the thickness of the head portion of the valve needle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859196.5U CN214726138U (en) | 2021-04-23 | 2021-04-23 | Cylinder structure of adjustable needle valve length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859196.5U CN214726138U (en) | 2021-04-23 | 2021-04-23 | Cylinder structure of adjustable needle valve length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214726138U true CN214726138U (en) | 2021-11-16 |
Family
ID=78613034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120859196.5U Active CN214726138U (en) | 2021-04-23 | 2021-04-23 | Cylinder structure of adjustable needle valve length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214726138U (en) |
-
2021
- 2021-04-23 CN CN202120859196.5U patent/CN214726138U/en active Active
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