CN217976849U - Anti-impact double-telescopic stand column - Google Patents
Anti-impact double-telescopic stand column Download PDFInfo
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- CN217976849U CN217976849U CN202221872364.5U CN202221872364U CN217976849U CN 217976849 U CN217976849 U CN 217976849U CN 202221872364 U CN202221872364 U CN 202221872364U CN 217976849 U CN217976849 U CN 217976849U
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- pressurizing cavity
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Abstract
The utility model discloses a shock-resistant double-telescopic stand column, which relates to the field of telescopic stand columns and comprises an outer cylinder, a middle cylinder and a movable column, wherein the middle cylinder is positioned in the outer cylinder and can axially slide in the outer cylinder; the space between the inner cylinder and the middle cylinder forms a pressurizing cavity, pressure filling liquid is arranged in the pressurizing cavity, and a bottom valve is fixedly arranged at the bottom of the inner cylinder. The utility model discloses a set up well jar, at the inside inner casing that has set up of well jar, and the post that lives is installed in the inner casing, forms the booster chamber between well jar and the inner casing, and the hydraulic oil that increases the chamber is used in the outside of inner casing, and when receiving the impact, pressure in the inner casing can rise, can offset the inside pressure of inner casing, improves the shock resistance effect.
Description
Technical Field
The utility model relates to a flexible stand field specifically is a two flexible stands shock resistance.
Background
The double-telescopic upright column mainly comprises an outer cylinder, a middle cylinder, a plunger, a large guide sleeve, a small guide sleeve, a bottom valve, a sealing element and a connecting piece. The structure and the function of the outer cylinder are basically the same as those of the cylinder body of the single telescopic upright post. The middle cylinder is formed by welding a middle cylinder bottom and a middle cylinder body, and is a plunger of the first-stage cylinder and a cylinder body of the second-stage cylinder. It can move up and down in the outer cylinder and is the main force transfer component in the hydraulic cylinder.
When the hydraulic cylinder is suddenly impacted, the pressure change of the secondary cylinder body is the largest, so that the secondary cylinder body is easily damaged due to expansion.
Chinese patent No. CN201620508386.1 discloses an anti-impact double-telescopic column, but it adopts multiple external hydraulic systems and multiple bottom valves to achieve the anti-impact effect, but its structure is relatively complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two flexible stands resist shock to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: an anti-impact double-telescopic upright post comprises an outer cylinder, a middle cylinder and a plunger, wherein the middle cylinder is positioned in the outer cylinder and can axially slide in the outer cylinder,
the inner cylinder is fixedly arranged in the outer cylinder, the height of the inner cylinder is the same as that of the middle cylinder, and the plunger is arranged in the inner cylinder and can move along the axial direction of the inner cylinder;
the space between the inner cylinder and the middle cylinder forms a pressurizing cavity, pressure filling liquid is arranged in the pressurizing cavity, and a bottom valve is fixedly arranged at the bottom of the inner cylinder.
Preferably, the bottom of the pressurizing cavity is provided with an opening structure, so that the pressurizing cavity is communicated with the inner cavity of the outer cylinder.
Preferably, the bottom of the pressurizing cavity is of a closed structure, and a liquid inlet pipe is fixedly mounted on the outer side of the top of the pressurizing cavity.
Preferably, the bottom of the outer cylinder is fixedly provided with a liquid inlet pipe.
Preferably, the center of the plunger is provided with a liquid channel, and the upper end of the plunger is provided with a liquid inlet communicated with the liquid channel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up well jar, at the inside inner casing that has set up of well jar, and the post that lives is installed in the inner casing, forms the pressure boost chamber between well jar and the inner casing, and the hydraulic oil that increases the chamber is used in the outside of inner casing, and when receiving the impact, pressure in the inner casing can rise, can offset the inside pressure of inner casing, improves the effect of shocking resistance, and simple structure has avoided using outside hydraulic system moreover.
Drawings
FIG. 1 is a sectional view of the present invention;
fig. 2 is another structural section view of the present invention.
In the figure: 1. an outer cylinder; 2. an inner cylinder; 3. a middle cylinder; 4. a plunger; 5. a bottom valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present embodiment provides an anti-impact dual-telescopic column, including an outer cylinder 1, a middle cylinder 3, and a plunger 4, where one end of the middle cylinder 3 is located in an inner cavity of the outer cylinder 1 and can slide axially in the outer cylinder 1, a liquid inlet pipe is fixedly installed at the bottom of the outer cylinder 1, hydraulic oil is injected into the outer cylinder 1 through the liquid inlet pipe, and the hydraulic oil can drive the middle cylinder 3 and the inner cylinder 2 to drive the plunger 4 to axially move outward together in the process of entering the outer cylinder 1, so as to extend outward. A liquid channel is arranged at the center of the plunger 4, and a liquid inlet communicated with the liquid channel is arranged at the upper end of the plunger 4.
The inner cylinder 2 is fixedly arranged in the outer cylinder 1, the height of the inner cylinder 2 is the same as that of the middle cylinder 3, a pressurizing cavity is formed in the space between the inner cylinder 2 and the middle cylinder 3, pressure filling liquid is arranged in the pressurizing cavity, the pressure filling liquid is hydraulic oil, the pressure in the pressurizing cavity is improved after the hydraulic oil is filled in the pressurizing cavity, and the plunger 4 is arranged in the inner cylinder 2 and can move along the axial direction of the inner cylinder 2; the inner part of the inner cylinder 2 is a space for installing a plunger 4, and the bottom of the inner cylinder 2 is fixedly provided with a bottom valve 5. When the plunger 4 is extended outward, the bottom valve 5 is opened, and hydraulic oil can enter the inner cylinder 2, so that the plunger 4 is extended.
When the hydraulic oil is located inside the outer cylinder 1, the hydraulic oil can enter the pressurizing cavity, and the pressure in the pressurizing cavity can act on the outer side of the inner cylinder 2 to provide pressure for the outer side of the inner cylinder 2. When the plunger 4 receives the striking suddenly, the plunger 4 can move down, forms instantaneous high pressure to the hydraulic oil in the inner cylinder 2, and because there is hydraulic oil to provide pressure in the outside of inner cylinder 2 also to the outside of acting on inner cylinder 2, can form with the high pressure in the inner cylinder 2 and offset, thereby improves the effect of shocking resistance of inner cylinder, avoids inner cylinder 2 to damage, thereby improves holistic shock resistance.
In a further embodiment, as shown in fig. 2, the bottom of the pressurizing cavity is a closed structure, a liquid inlet pipe is fixedly installed on the outer side of the top of the pressurizing cavity, hydraulic oil can be separately filled into the pressurizing cavity through the liquid inlet pipe, the pressure of the filled hydraulic oil can be set according to actual use requirements, the applicability is higher during use, and the pressure of the filled hydraulic oil cannot exceed the bearing capacity of the inner cylinder 2 and the middle cylinder 3.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a two flexible stands of shocking resistance which characterized in that: comprises an outer cylinder (1), a middle cylinder (3) and a plunger (4), wherein the middle cylinder (3) is positioned in the outer cylinder (1) and can axially slide in the outer cylinder (1),
the inner cylinder (2) is fixedly arranged in the outer cylinder (1), the height of the inner cylinder (2) is the same as that of the middle cylinder (3), and the plunger (4) is arranged in the inner cylinder (2) and can move along the axial direction of the inner cylinder (2);
the space between the inner cylinder (2) and the middle cylinder (3) forms a pressurizing cavity, pressure filling liquid is arranged in the pressurizing cavity, and a bottom valve (5) is fixedly arranged at the bottom of the inner cylinder (2).
2. An impact resistant dual telescopic column as claimed in claim 1, wherein: the bottom of the pressurizing cavity is of an open structure, so that the pressurizing cavity is communicated with the inner cavity of the outer cylinder (1).
3. An impact resistant dual telescopic column as claimed in claim 1, wherein: the bottom of the pressurizing cavity is of a closed structure, and a liquid inlet pipe is fixedly installed on the outer side of the top of the pressurizing cavity.
4. An impact resistant dual telescopic column as claimed in claim 1, wherein: the bottom of the outer cylinder (1) is fixedly provided with a liquid inlet pipe.
5. An impact resistant dual telescopic column as claimed in claim 1, wherein: a liquid channel is arranged at the center of the movable column (4), and a liquid inlet communicated with the liquid channel is arranged at the upper end of the movable column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221872364.5U CN217976849U (en) | 2022-07-15 | 2022-07-15 | Anti-impact double-telescopic stand column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221872364.5U CN217976849U (en) | 2022-07-15 | 2022-07-15 | Anti-impact double-telescopic stand column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217976849U true CN217976849U (en) | 2022-12-06 |
Family
ID=84280765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221872364.5U Active CN217976849U (en) | 2022-07-15 | 2022-07-15 | Anti-impact double-telescopic stand column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217976849U (en) |
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2022
- 2022-07-15 CN CN202221872364.5U patent/CN217976849U/en active Active
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