CN202867403U - Novel double-action multistage telescopic cylinder - Google Patents
Novel double-action multistage telescopic cylinder Download PDFInfo
- Publication number
- CN202867403U CN202867403U CN 201220521660 CN201220521660U CN202867403U CN 202867403 U CN202867403 U CN 202867403U CN 201220521660 CN201220521660 CN 201220521660 CN 201220521660 U CN201220521660 U CN 201220521660U CN 202867403 U CN202867403 U CN 202867403U
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- piston
- piston rod
- gas
- rod assembly
- oil
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Abstract
The utility model discloses a novel double-action multistage telescopic cylinder which comprises an outer cylinder body (1). The novel double-action multistage telescopic cylinder is characterized in that a transition pipe (4) is arranged in the outer cylinder body (1), multiple stages of piston and piston rod assemblies are arranged between the outer cylinder body (1) and the transition pipe (4), a front cover is arranged outside one end of each stage of piston and piston rod assembly, a front threaded plug (7) is arranged in one end of the innermost stage of piston and piston rod assembly, and the outer cylinder body (1) is provided with a rear oil (gas) port (1-1) and a front oil (gas) port (1-2); each stage of piston and piston rod assembly is provided with a rear cavity oil (gas) passing port and a front cavity oil (gas) passing port; and the innermost stage of piston and piston rod assembly is provided with an oil (gas) passing port. The novel double-action multistage telescopic cylinder is compact in structure, high in operational reliability, capable of being suitable for various installation forms like a common double-action single-stage cylinder, and quite wide in application range.
Description
Technical field:
The utility model relates to a kind of telescopic cylinder, relates in particular to a kind of new-type two-action multi-stage telescopic cylinder.
Background technique:
At present, existing two-action multi-stage telescopic cylinder mainly contains following several: 1. former and later two oil (gas) mouth all is integrated in the minimum level piston rod head, can only be applied to generally that piston rod head is fixed and the cylinder body afterbody connects the occasion (such as the push pedal oil cylinder of compression type garbage truck) of load, on the contrary will be very inconvenient; 2. rear oil (gas) mouthful shares, and front oil (gas) mouthful every grade has one, and progression is more, and pipeline is more numerous and diverse; 3. former and later two oil (gas) mouthful all are positioned on the outer cylinder body, but all will add one deck sleeve between inner every two-stage to realize the conversion of oil (gas) road, and it is much larger that the radial dimension of telescopic cylinder and deadweight are added, and have also increased its manufacture cost.
Summary of the invention:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and a kind of compact structure is provided, operational reliability is high, and can be applicable to diversified installation form as common double effect single-stage cylinder, application area is new-type two-action multi-stage telescopic cylinder very widely.
The purpose of this utility model can reach by following measure: a kind of new-type multistage double-action telescopic cylinder, it comprises outer cylinder body, it is characterized in that being provided with in the outer cylinder body transition tube, be provided with the multi-level piston piston rod assembly between outer cylinder body and the transition tube, one end of piston piston rod assemblies at different levels is equipped with protecgulum outward, be provided with front screw plug in the end of the piston piston rod assembly of interior one-level, outer cylinder body is provided with rear oil (gas) mouthful, front oil (gas) mouthful; Piston piston rod assemblies at different levels are provided with that back cavity is crossed oil (gas) mouthful and ante-chamber is crossed oil (gas) mouth; Interior first stage piston piston rod assembly was provided with oil (gas) mouth.
The utility model can produce following good effect compared with the prior art: the utility model compact structure, and operational reliability is high, and can be applicable to diversified installation form as common double effect single-stage cylinder, and application area is very extensive.
Description of drawings:
Fig. 1 is structural representation of the present utility model (take the two-stage cylinder as example);
Fig. 2 is the schematic representation of the overhanging state of the utility model;
Fig. 3 is the schematic representation that the utility model all stretches out state;
Embodiment
Embodiment: a kind of new-type multi-stage expansion cylinder (oil hydraulic cylinder or cylinder) is (take the two-stage cylinder as example, referring to Fig. 1), it comprises outer cylinder body 1, be provided with first stage piston piston rod assembly 2 in the outer cylinder body 1, be provided with second piston piston rod assembly 3 in the first stage piston piston rod assembly 2, be provided with transition tube 4 in the second piston piston rod assembly 3, one end of first stage piston piston rod assembly 2 is provided with one-level protecgulum 5 outward, one end of second piston piston rod assembly 3 is provided with secondary protecgulum 6 outward, is provided with front screw plug 7 in the end of second piston piston rod assembly 3.Outer cylinder body 1 is provided with rear oil (gas) mouthful 1-1, front oil (gas) mouthful 1-2; First stage piston piston rod assembly 2 is provided with that back cavity is crossed oil (gas) mouthful 2-1 and ante-chamber is crossed oil (gas) mouthful 2-2; Second piston piston rod assembly 3 was provided with oil (gas) mouthful 3-1.Form back cavity 8 between outer cylinder body 1 and the first stage piston piston rod assembly 2; Form ante-chamber 9 between outer cylinder body 1 and first stage piston piston rod assembly 2 and the one-level protecgulum 5; Form time ante-chamber 10 between first stage piston piston rod assembly 2 and second piston piston rod assembly 3 and the secondary protecgulum 6; Form adapter cavity 11 between second piston piston rod assembly 3 and transition tube 4 and the front screw plug 7; Form time back cavity 12(between first stage piston piston rod assembly 2 and second piston piston rod assembly 3 and the transition tube 4 and see Fig. 3).
Its operating principle is as follows:
Overhanging process: the hydraulic oil of certain pressure (pressurized air) enters back cavity 8 from rear oil (gas) mouthful 1-1 of outer cylinder body 1, promote first stage piston piston rod assembly 2, together with transition tube 4, secondary protecgulum 6 and drive second piston piston rod assembly 3 and front screw plug 7(connects load) move right.Although hydraulic oil this moment (pressurized air) is crossed oil (gas) mouthful 2-1 by the back cavity on the first stage piston piston rod assembly 2 and has also been entered inferior back cavity 12, but the thrust that second piston piston rod assembly 3 is produced because of its pressure also is not enough to overcome the suffered resistance (back pressure in load force, stiction and the inferior ante-chamber 10) of second piston piston rod assembly 3, so do not produce relative movement between second piston piston rod assembly 3 and the first stage piston piston rod assembly 2.Until first stage piston piston rod assembly 2 is reached home when (being position shown in Figure 2), the pressure of hydraulic oil (pressurized air) raises naturally, overcome the suffered resistance of second piston piston rod assembly 3, promote it and move right, until second piston piston rod assembly 3 also all stretches out (see figure 3).
Retraction process: (see figure 3) hydraulic oil (pressurized air) enters ante-chamber 9 from front oil (gas) mouthful 1-2 of outer cylinder body 1, and cross oily (gas) mouthful 3-1 on oil (gas) mouthful 2-2, transition tube 4, adapter cavity 11, the second piston piston rod assembly 3, the inferior ante-chamber 10 of arrival by the ante-chamber on the first stage piston piston rod assembly 2 with excessivelying.This moment, ante-chamber 9 and time ante-chamber 10 interior pressure reached balanced, which rank of bounces back first and depends on their separately ratios of suffered pulling force and resistance for first stage piston piston rod assembly 2 and second piston piston rod assembly 3, but eventually all to all retract, return to state shown in Figure 1.
Claims (1)
1. new-type two-action multi-stage telescopic cylinder, it comprises outer cylinder body (1), it is characterized in that being provided with in the outer cylinder body (1) transition tube (4), be provided with the multi-level piston piston rod assembly between outer cylinder body (1) and the transition tube (4), one end of piston piston rod assemblies at different levels is equipped with protecgulum outward, be provided with front screw plug (7) in the end of the piston piston rod assembly of interior one-level, outer cylinder body (1) is provided with rear oil (gas) mouthful (1-1), front oil (gas) mouthful (1-2); Piston piston rod assemblies at different levels are provided with that back cavity is crossed oil (gas) mouthful and ante-chamber is crossed oil (gas) mouth; Interior first stage piston piston rod assembly was provided with oil (gas) mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521660 CN202867403U (en) | 2012-10-12 | 2012-10-12 | Novel double-action multistage telescopic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521660 CN202867403U (en) | 2012-10-12 | 2012-10-12 | Novel double-action multistage telescopic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867403U true CN202867403U (en) | 2013-04-10 |
Family
ID=48034126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521660 Expired - Lifetime CN202867403U (en) | 2012-10-12 | 2012-10-12 | Novel double-action multistage telescopic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762951A (en) * | 2016-12-28 | 2017-05-31 | 王金达 | A kind of compressed air backhaul single-action hydraulic cylinder |
| CN106859465A (en) * | 2017-03-24 | 2017-06-20 | 王博 | Feces collecting system |
-
2012
- 2012-10-12 CN CN 201220521660 patent/CN202867403U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762951A (en) * | 2016-12-28 | 2017-05-31 | 王金达 | A kind of compressed air backhaul single-action hydraulic cylinder |
| CN106859465A (en) * | 2017-03-24 | 2017-06-20 | 王博 | Feces collecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |