CN204400528U - A kind of stretching structure - Google Patents
A kind of stretching structure Download PDFInfo
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- CN204400528U CN204400528U CN201420757874.7U CN201420757874U CN204400528U CN 204400528 U CN204400528 U CN 204400528U CN 201420757874 U CN201420757874 U CN 201420757874U CN 204400528 U CN204400528 U CN 204400528U
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- pipe
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- top cover
- pipeline
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Abstract
A kind of stretching structure, relates to a kind of technical field of stretching structure, comprises base, cavity pipe is connected successively with top cover; Base or top cover arrange conduit air inlet and cavity admission port; Cavity pipe is closed by two or more sections of pipe threads and forms, and forms a pipeline, pipeline one end of cavity pipe and conduit air inlet between the inwall of section pipe and outer wall, and the other end and top cover or base offset; Base, cavity pipe and top cover form a cavity structure.The utility model is by injecting gas or liquid in the cavity of cavity pipe, and the section of enabling pipe relative sliding, completes stretching routine; Injecting gas or liquid in the pipeline of cavity pipe, the section of enabling pipe relative sliding, completes contractile motion.
Description
Technical field
The utility model relates to a kind of stretching structure.
Background technology
In various stretching structure, great majority are being filled with and releasing and realize telescopic effect by hydraulic fluid in its structure.If application publication number is a kind of triple retractable column disclosed in the utility application of CN101845957A and hydraulic support, triple retractable column comprises outer cylinder body, be provided with cylinder in one-level in outer cylinder body, in one-level, in cylinder, be provided with cylinder in secondary, in secondary, in cylinder, be provided with post alive; Outer cylinder body is provided with epicoele liquid mouth and cavity of resorption liquid mouth; In one-level, the diapire of cylinder is provided with the first bottom valve, and in one-level, the diapire of cylinder is provided with the first bottom valve; In one-level, the sidewall of cylinder is provided with the first liquid hole that the epicoele of outer cylinder body is communicated with the epicoele of cylinder in one-level; In one-level, the sidewall of cylinder is provided with the first liquid hole that the epicoele of cylinder in one-level is communicated with the epicoele of cylinder in one-level; This kind of hydraulically extensible structure, the flow of liquid that need realize between upper and lower cavity liquid mouth by the propulsion source of external hydraulic pump and so on, and the hydraulic pressure in cylinder is acquired a certain degree, thus realize flexible function; This kind of flexible mode, need by external force, and operation is comparatively complicated.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of stretching structure, and it uses gas or liquid to carry out fore and aft motion, also pollution-free to it when providing power.
Be achieved through the following technical solutions above-mentioned purpose:
A kind of stretching structure, comprise base, cavity pipe is connected successively with top cover, described base arranges a conduit air inlet and a cavity admission port; Described cavity pipe is closed by two or more sections of pipe threads and forms; A pipeline is formed between the inwall of described section pipe and outer wall; One end of the pipeline of described cavity pipe is communicated with described conduit air inlet, and the other end and described top cover offset; Described base, cavity pipe and top cover form a cavity structure closed.
Say further, fastened by step between described Duan Guanyu section pipe and form, the pipeline of two sections of pipes communicates, and the length direction section-drawing of the step of described section pipe is stepped appearance.
Say further, the length of each section of described pipe is equal.
Say further, at described base on the direction of top cover, the internal diameter of previous section of pipe in described cavity pipe equals the external diameter of a rear section pipe.
A kind of stretching structure, comprise base, cavity pipe is connected successively with top cover, described top cover arranges a conduit air inlet and a cavity admission port; Described cavity pipe is closed by two or more sections of pipe threads and forms; Described section pipe comprises outer section of pipe and inner segment pipe; Form a pipeline between the inwall of described inner segment pipe or outer section pipe and outer wall, one end of the pipeline of described cavity pipe is communicated with the conduit air inlet of described top cover, and the other end and described base offset; Described base, cavity pipe and top cover composition hollow cylinder, described base, outer section of pipe, inner segment pipe and top cover form a cavity structure.
Say further, fastened by step between described Duan Guanyu section pipe and form, the pipeline of two sections of pipes communicates, and the length direction section-drawing of the step of described section pipe is stepped appearance.
Say further, the length of each section of described pipe is equal.
Say further, at described base on the direction of top cover, the internal diameter of previous section of pipe in described cavity pipe equals the external diameter of a rear section pipe.
By the stretch mode of any stretching structure above-mentioned, it is characterized in that: completed by following steps:
A. cavity pipe is formed by two or more sections of pipes;
B. base, cavity pipe and top cover composition stretching structure;
C. injecting gas or liquid in cavity admission port, along with the volume of gas or liquid increases, first top cover rises, and drive each section of pipe to rise with back header, finally each section of pipe all rises to top, completes the motion of stretching, extension;
D., in the process stretched, the gas in pipeline or liquid will to outflows from conduit air inlet;
E. the gas of cavity admission port or the injection of liquid is stopped;
F. injecting gas or liquid in conduit air inlet, along with the volume of gas or liquid increases, the gap of the step of two sections of pipes increases, section pipe also declines thereupon, after each section of pipe drops to bottom, gas or liquid will enter on higher pipeline, repeat above-mentioned action, most back segment pipe and top cover will drop to minimum thereupon, complete the motion of contraction;
G., in the process of shrinking, the gas in cavity pipe or liquid will from cavity admission ports to outflow;
H. the gas of conduit air inlet or the injection of liquid is stopped;
I. repeat above-mentioned.
The beneficial effects of the utility model are: by arranging conduit air inlet and cavity admission port on base or top cover, and cavity pipe is closed by two or more sections of pipe threads and forms; A pipeline is formed between the inwall of section pipe and outer wall; One end of the pipeline of cavity pipe is communicated with conduit air inlet, and gas or liquid can be allowed to enter from it, and the other end and top cover or base offset, and in the filling of gas, gap between any two will increase, thus realizes the contraction of cylinder; Another admission port connects the cavity place in the middle of it, and in the process of its inflation, cavity pipe and top cover upwards push up by its gas.At described base on the direction of top cover, the internal diameter of previous section of pipe in cavity pipe equals the external diameter of a rear section pipe; The cavity of cavity pipe is communicated with cavity admission port, and when gas or liquid inject cavity, along with the volume of cavity increases, cavity pipe stretches thereupon, finally completes the motion of stretching, extension.The utility model provides power by gas, and efficiency is fast, pollution-free, environmental protection, and totally, without the puzzlement of traditional liquid stain, also available liquid substitutes where necessary.
Accompanying drawing explanation
Fig. 1 is constructional drawing of the present utility model;
Fig. 2 is pinned sheepshank composition of the present utility model;
Fig. 3 is the constructional drawing of hollow cylinder twin flue of the present utility model;
Fig. 4 is the pinned sheepshank composition of hollow cylinder of the present utility model.
Icon: 1, base; 2, cavity pipe; 3, top cover; 4, pipeline; 5, gap; 11, conduit air inlet; 12, cavity admission port; 21, inner segment pipe; 22, outer section of pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
The direction term mentioned in following examples, such as " upper and lower, left and right " are only the directions with reference to accompanying drawing, and therefore, the direction term of use is used to illustrate and is not used for limiting the utility model.
Embodiment 1
According to Fig. 1-2, calculate as first paragraph pipe from the section pipe be connected with base 1, the Duan Guanwei second segment pipe be connected with first paragraph pipe, the rest may be inferred, the Duan Guanwei N section pipe be connected with top cover 3, the external diameter of described second segment pipe equals the internal diameter of first paragraph pipe, the external diameter of the 3rd section of described pipe equals the internal diameter of second segment pipe, the rest may be inferred, the external diameter of described N section pipe equals the internal diameter of (N-1) section pipe, the length of each section of pipe is identical, base 1 and cavity pipe 2 interlock, between the inner and outer wall of cavity pipe 2, pipeline 4 is set, the conduit air inlet 11 that pipeline 4 and base 1 are arranged, base 1 is also arranged a cavity admission port 12, and be connected with the cavity structure of cavity pipe 2, cavity pipe 2 is made up of two or more sections of pipes, can freely add or reduce to control its length, top cover 3 and cavity pipe 2 interlock, connection between section pipe is step, and its length direction section-drawing is notch cuttype, is preferably shape as " Z " type.
When insufflation gas in the cavity admission port 12 at base 1, because the utility model middle part is hollow, each parts form a cavity structure, injecting gas or liquid in cavity pipe 2, first top cover 3 rises, N section pipe is driven to rise with back header 3, and the lower end of N section pipe due to the upper end position with (N-1) section pipe be buckle structure, when N section pipe is raised to the highest, also drive (N-1) section pipe is risen, finally each section of pipe all rises to top, stops the conveying of gas or liquid, completes the motion of stretching, extension.
If have gas or liquid in gap 5, in stretching routine, along with the stretching, extension of cavity pipe 2, gap 5 reduces thereupon, and gas or liquid also will flow out from conduit air inlet end.
When insufflation gas in the conduit air inlet 11 at base 1, by the pipeline 4 of first paragraph pipe, step between first paragraph pipe and second segment pipe is by softened, gap 5 will be formed, along with gas or liquid are filled in gap 5, gap 5 increases gradually, second segment pipe also declines thereupon, second segment pipe drop to minimum after, gas or liquid, by entering on the pipeline 4 of second segment pipe, are so analogized, and last N section pipe and top cover 3 will drop to minimum thereupon, stop the conveying of gas or liquid, complete the motion of contraction.
In contractile motion process, the increase along with gap 5 is flowed out by the gas in cavity pipe 2 or liquid from cavity admission port.
Repeat above-mentioned motion, will the requirement of piston movement be reached.
The length direction section-drawing of top cover 3 is preferably " U " type.
Embodiment 2
According to Fig. 3-4, provide a kind of another kind of stretching structure of hollow cylinder.
From the inner segment pipe be connected with base 1, it is the first inner segment pipe that outer section of pipe is calculated, first outer section pipe, with the first inner segment pipe, the inner segment pipe that first outer section pipe is connected, outer section of pipe is the second inner segment pipe, second outer section pipe, the rest may be inferred, the inner segment pipe be connected with top cover 3, outer section of Guan Wei N inner segment pipe, the outer section pipe of N, the external diameter of the described second outer section pipe equals the internal diameter of the first inner segment pipe, the external diameter of the described the 3rd outer section pipe equals the internal diameter of the second inner segment pipe, the rest may be inferred, the external diameter of the outer section pipe of described N equals the internal diameter of (N-1) inner segment pipe, each inner segment pipe is identical with the length of outer section of pipe.
Outside between the inwall of section pipe 22 or inner segment pipe 21 and outer wall, pipeline can be set, also outside between the inwall of section pipe 22 and inner segment pipe 21 and outer wall, pipeline 4 can be all set; .
Connection between section pipe is step, and its length direction section-drawing is notch cuttype, is preferably shape as " Z " type.
Cavity pipe 2 and base 1, top cover 3 form a hollow cylinder, and base 1, outer section of pipe 22, inner segment pipe 21 and top cover 3 form a cavity structure.
When insufflation gas in the cavity admission port 12 at top cover 3, because the utility model middle part is hollow, each parts form a cavity structure, injecting gas or liquid in cavity pipe 2, first top cover 3 rises, N section pipe is driven to rise with back header 3, and the lower end of N section pipe due to the upper end position with (N-1) section pipe be buckle structure, when N section pipe is raised to the highest, also drive (N-1) section pipe is risen, finally each section of pipe all rises to top, stops the conveying of gas or liquid, completes the motion of stretching, extension.
If have gas or liquid in gap 5, in stretching routine, along with the stretching, extension of cavity pipe 2, gap 5 reduces thereupon, and gas or liquid also will flow out from conduit air inlet end.
When insufflation gas in the conduit air inlet 11 at top cover 3, by the pipeline 4 of first paragraph pipe, step between first paragraph pipe and second segment pipe is by softened, gap 5 will be formed, along with gas or liquid are filled in gap 5, gap 5 increases gradually, second segment pipe also declines thereupon, second segment pipe drop to minimum after, gas or liquid, by entering on the pipeline 4 of second segment pipe, are so analogized, and last N section pipe and top cover 3 will drop to minimum thereupon, stop the conveying of gas or liquid, complete the motion of contraction.
In contractile motion process, the increase along with gap 5 is flowed out by the gas in cavity pipe 2 or liquid from cavity admission port.
Repeat above-mentioned motion, will the requirement of piston movement be reached.
Because the present embodiment is hollow cylinder structure, the below of obstacle at object can be applied to.
Fig. 1-4 shows, conduit air inlet 11 and cavity admission port 12 are not limited to be arranged on base 1 or top cover 3.
The utility model can be used in jack etc. to be needed to use in the structure of fore and aft motion.
Because the utility model uses the expansion effect of gas, non-environmental-pollution, again no liquid stain, can add lubricant in junction, increases its efficiency; Also alternative gas can be carried out with liquid where necessary.
The above not imposes any restrictions technical scope of the present utility model, all above embodiment is done according to the utility model technical spirit any amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (8)
1. a stretching structure, comprises base, cavity pipe is connected successively with top cover, it is characterized in that: described base arranges a conduit air inlet and a cavity admission port; Described cavity pipe is closed by two or more sections of pipe threads and forms; A pipeline is formed between the inwall of described section pipe and outer wall; One end of the pipeline of described cavity pipe is communicated with described conduit air inlet, and the other end and described top cover offset; Described base, cavity pipe and top cover form a cavity structure.
2. a kind of stretching structure according to claim 1, is characterized in that: fastened by step between described Duan Guanyu section pipe and form, the pipeline of two sections of pipes communicates, and the length direction section-drawing of the step of described section pipe is stepped appearance.
3. a kind of stretching structure according to claim 2, is characterized in that: the length of each section of described pipe is equal.
4. a kind of stretching structure according to claim 3, is characterized in that: at described base on the direction of top cover, and the internal diameter of previous section of pipe in described cavity pipe equals the external diameter of a rear section pipe.
5. a stretching structure, comprises base, cavity pipe is connected successively with top cover, it is characterized in that: described top cover arranges a conduit air inlet and a cavity admission port; Described cavity pipe is closed by two or more sections of pipe threads and forms; Described section pipe comprises outer section of pipe and inner segment pipe; Form a pipeline between the inwall of described inner segment pipe or outer section pipe and outer wall, one end of the pipeline of described cavity pipe is communicated with the conduit air inlet of described top cover, and the other end and described base offset; Described base, cavity pipe and top cover composition hollow cylinder, described base, outer section of pipe, inner segment pipe and top cover form a cavity structure.
6. a kind of stretching structure according to claim 5, is characterized in that: fastened by step between described Duan Guanyu section pipe and form, the pipeline of two sections of pipes communicates, and the length direction section-drawing of the step of described section pipe is stepped appearance.
7. a kind of stretching structure according to claim 6, is characterized in that: the length of each section of described pipe is equal.
8. a kind of stretching structure according to claim 7, is characterized in that: at described base on the direction of top cover, and the internal diameter of previous section of pipe in described cavity pipe equals the external diameter of a rear section pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757874.7U CN204400528U (en) | 2014-12-08 | 2014-12-08 | A kind of stretching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757874.7U CN204400528U (en) | 2014-12-08 | 2014-12-08 | A kind of stretching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204400528U true CN204400528U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757874.7U Expired - Fee Related CN204400528U (en) | 2014-12-08 | 2014-12-08 | A kind of stretching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204400528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444922A (en) * | 2014-12-08 | 2015-03-25 | 范军 | Stretching structure and stretching manner thereof |
-
2014
- 2014-12-08 CN CN201420757874.7U patent/CN204400528U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444922A (en) * | 2014-12-08 | 2015-03-25 | 范军 | Stretching structure and stretching manner thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20181208 |