Pressurizing air cylinder

Abstract

The utility model discloses a pressurizing cylinder, which relates to the technical field of pressurizing cylinders and comprises a cylinder body, the upper end and the lower end of the cylinder body are respectively connected with a second connecting flange and a first connecting flange, and the bottom of the first connecting flange is fixedly connected with the pressurizing cylinder body; the upper end of a cavity of the air cylinder body is slidably connected with an air cylinder piston piece, and the center of the bottom of the air cylinder piston piece is vertically and fixedly connected with an air cylinder piston rod. A multi-stage annular groove is formed in the lower end of a cavity of the air cylinder body, the multi-stage annular groove is formed by stacking circular grooves, the cross sectional areas of the circular grooves are evenly decreased layer by layer from top to bottom, and a telescopic cylinder is fixedly connected into the circular groove at the uppermost end in the multi-stage annular groove and comprises a multi-stage sleeve. The sleeve at the innermost end of the telescopic cylinder is fixedly connected to the bottom of the piston rod of the air cylinder; the problem that in the prior art, the output size of a booster cylinder cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of supercharging cylinders, in particular to a supercharging cylinder. Background Art

[0002] The piston rod pressure of an ordinary cylinder is related to the gas pressure and the piston cross-sectional area. When the piston cross-sectional area is fixed, the cylinder has a limited range to adjust the piston rod pressure by adjusting the compressed air pressure. When a higher pressure is required, a larger cylinder can generally be used, but a larger cylinder requires a larger installation space and is limited in some installation occasions. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a supercharged cylinder, which solves the problem that the output size of the supercharged cylinder in the prior art cannot be adjusted.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a booster cylinder.

[0005] As a further solution of the utility model: a booster cylinder comprises a cylinder body, wherein the upper and lower ends of the cylinder body are respectively connected to a second connecting flange and a first connecting flange, and the bottom of the first connecting flange is fixedly connected to the booster cylinder body;

[0006] A through hole is provided in the center of the bottom wall of the booster cylinder body, a booster piston rod is sleeved and slidably connected to the bottom wall through hole of the booster cylinder body, and a booster piston sheet is fixedly connected to the top of the booster piston rod;

[0007] The upper end of the cavity of the cylinder body is slidably connected with a cylinder piston plate, and the bottom center of the cylinder piston plate is vertically fixedly connected with a cylinder piston rod; the lower end of the cavity of the cylinder body is provided with a multi-stage ring groove, and the multi-stage ring groove is composed of circular grooves with uniformly decreasing cross-sectional areas from top to bottom, and a telescopic cylinder is fixedly connected in the uppermost circular groove of the multi-stage ring groove, and the telescopic cylinder includes a multi-stage sleeve, and the innermost sleeve of the telescopic cylinder is fixedly connected to the bottom of the cylinder piston rod;

[0008] A through hole is formed through the center of the first connecting flange, and an oil storage chamber is set between the telescopic cylinder and the booster piston plate; a through hole is formed through the center of the second connecting flange, and an air inlet is fixedly connected to the center of the top of the second connecting flange, and an air storage chamber is set between the air inlet and the cylinder piston plate.

[0009] Furthermore, the number of sleeves in the telescopic cylinder corresponds to the number of circular grooves superimposed in the multi-stage annular groove, and when the telescopic cylinder is fully extended, the outer wall of the sleeve fits with the inner wall of the circular groove.

[0010] Furthermore, the outermost sleeve in the telescopic cylinder is fixedly connected to the uppermost circular groove in the multi-stage annular groove.

[0011] Furthermore, the top of the sleeve in the telescopic cylinder is fixedly connected with a threaded seat, and the threaded seat is penetrated by a threaded groove.

[0012] Furthermore, a plurality of first slide grooves are evenly arranged on the inner wall of the upper end of the cavity of the cylinder body, and a plurality of protrusions are arranged on the edge of the cylinder piston plate, and the protrusions are tightly fitted in the first slide grooves.

[0013] Furthermore, a plurality of second sliding grooves are evenly provided on the inner wall of the multi-stage annular groove, a plurality of protrusions are provided on the outer side of each individual sleeve in the telescopic cylinder, and the protrusions are tightly fitted in the second sliding grooves; a plurality of grooves are provided on the inner side of each individual sleeve in the telescopic cylinder, and the grooves are tightly fitted on the outer protrusions of the sleeve adjacent to the inner side of the sleeve.

[0014] Furthermore, a plurality of third slide grooves are evenly arranged on the inner wall of the cavity of the boost cylinder body, and a plurality of protrusions are arranged on the edge of the boost piston plate, and the protrusions are tightly fitted in the third slide grooves.

[0015] Furthermore, adjacent sleeves in the telescopic cylinder are threadedly connected with threaded rods in the threaded seat so as to control the pressure application area of ​​the telescopic cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By using threaded rods to connect adjacent threaded seats, the central fixed area of ​​the telescopic cylinder is made to have the bottom area of ​​the innermost sleeve become the sum of the bottom areas of the fixedly connected sleeves. When the multiple groups of fixed sleeves are telescoped into one of the fitting multi-stage ring grooves, according to Pascal's principle, it can be known that the hydraulic pressure in the closed hydraulic system is equal everywhere, and thus the force remains unchanged and the force application area is the sum of the bottom areas of the multiple groups of fixed sleeves. Thus, the pressure on the booster piston plate can be controlled by controlling the size of the sum of the bottom areas of the sleeves, and the output of the booster cylinder can be adjusted by controlling the number of fixed sleeves. The utility model satisfies the need for manufacturers to only produce booster cylinders of the same model, and the fixed number of sleeves in the telescopic cylinder can be controlled by connecting the threaded seats in series with the threaded rods, thereby changing the output of the booster cylinder, thereby realizing a variable output booster cylinder that meets multiple needs on one production line, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the telescopic cylinder structure of the utility model.

[0021] In the figure: 1. cylinder body; 2. booster cylinder body; 3. booster piston rod; 4. first connecting flange; 5. second connecting flange; 6. air inlet; 7. cylinder piston plate; 8. first slide groove; 9. cylinder piston rod; 10. telescopic cylinder; 11. multi-stage ring groove; 12. second slide groove; 13. oil storage chamber; 14. third slide groove; 15. booster piston plate; 16. air storage chamber; 17. threaded seat; 18. threaded rod. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 As shown, a boost cylinder comprises a cylinder body 1, wherein the upper and lower ends of the cylinder body 1 are respectively connected with a second connecting flange 5 and a first connecting flange 4, and the bottom of the first connecting flange 4 is fixedly connected with the boost cylinder body 2;

[0024] A through hole is provided in the center of the bottom wall of the booster cylinder 2, a booster piston rod 3 is sleeved and slidably connected to the bottom wall through hole of the booster cylinder 2, and a booster piston plate 15 is fixedly connected to the top of the booster piston rod 3;

[0025] The upper end of the cavity of the cylinder body 1 is slidably connected with a cylinder piston plate 7, and the bottom center of the cylinder piston plate 7 is vertically fixedly connected with a cylinder piston rod 9; the lower end of the cavity of the cylinder body 1 is provided with a multi-stage annular groove 11, and the multi-stage annular groove 11 is composed of circular grooves with uniformly decreasing cross-sectional areas from top to bottom, and a telescopic cylinder 10 is fixedly connected in the circular groove at the upper end of the multi-stage annular groove 11, and the telescopic cylinder 10 includes a multi-stage sleeve, and the innermost sleeve of the telescopic cylinder 10 is fixedly connected to the bottom of the cylinder piston rod 9;

[0026] A through hole is formed through the center of the first connecting flange 4, and an oil storage chamber 13 is arranged between the telescopic cylinder 10 and the booster piston plate 15; a through hole is formed through the center of the second connecting flange 5, and an air inlet 6 is fixedly connected to the center of the top of the second connecting flange 5, and an air storage chamber 16 is arranged between the air inlet 6 and the cylinder piston plate 7.

[0027] Preferably, the number of sleeves in the telescopic cylinder 10 corresponds to the number of superimposed circular grooves in the multi-stage annular groove 11, and when the telescopic cylinder 10 is fully extended, the outer wall of the sleeve fits the inner wall of the circular groove.

[0028] Preferably, the outermost sleeve in the telescopic cylinder 10 is fixedly connected to the uppermost circular groove in the multi-stage annular groove 11 .

[0029] Preferably, the top of the sleeve in the telescopic cylinder 10 is fixedly connected with a threaded seat 17, and the threaded seat 17 is penetrated by a thread groove.

[0030] Preferably, a plurality of first slide grooves 8 are evenly arranged on the inner wall of the upper end of the cavity of the cylinder body 1 , and a plurality of protrusions are arranged on the edge of the cylinder piston plate 7 , and the protrusions are tightly fitted in the first slide grooves 8 .

[0031] Preferably, a plurality of second slide grooves 12 are evenly formed on the inner wall of the multi-stage annular groove 11, a plurality of protrusions are provided on the outer side of each individual sleeve in the telescopic cylinder 10, and the protrusions are tightly fitted in the second slide grooves 12; a plurality of grooves are provided on the inner side of each individual sleeve in the telescopic cylinder 10, and the grooves are tightly fitted on the outer protrusions of the sleeve adjacent to the inner side of the sleeve.

[0032] Preferably, a plurality of third slide grooves 14 are evenly arranged on the inner wall of the cavity of the boosting cylinder 2 , and a plurality of protrusions are arranged on the edge of the boosting piston plate 15 , and the protrusions are tightly fitted in the third slide grooves 14 .

[0033] Preferably, adjacent sleeves in the telescopic cylinder 10 are threadedly connected with threaded rods 18 in the threaded seat 17 so as to control the pressure application area of ​​the telescopic cylinder 10 .

[0034] Working principle:

[0035] When in use, compressed gas is added to the air inlet 6, so that the cylinder piston plate 7 moves downward, and then the cylinder piston rod 9 applies downward pressure to the telescopic cylinder 10, so that the telescopic cylinder 10 stretches downward to squeeze the hydraulic oil, and then pushes the booster piston plate 15 to move downward, so that the booster piston rod 3 moves outward and outputs pressure;

[0036] Since different construction work devices require different pressures, the threaded rod 18 is used to connect adjacent threaded seats 17, so that the central fixed area of ​​the telescopic cylinder 10 has the bottom area of ​​the innermost sleeve becoming the sum of the bottom areas of the fixedly connected sleeves. When the multiple groups of fixed sleeves are telescoped into one of the stages of the fitted multi-stage annular grooves 11, according to Pascal's principle, it can be known that the hydraulic pressure in the closed hydraulic system is equal everywhere, so the magnitude of the force remains unchanged, and the force application area is the sum of the bottom areas of the multiple groups of fixed sleeves. Therefore, the magnitude of the pressure on the booster piston plate 15 is controlled by controlling the size of the sum of the bottom areas of the sleeves, and the output of the booster cylinder can be adjusted by controlling the number of fixed sleeves. The utility model satisfies the need for manufacturers to only produce booster cylinders of the same model, and the fixed number of sleeves in the telescopic cylinder 10 is controlled by connecting the threaded seat 17 in series with the threaded rod 18, thereby changing the output of the booster cylinder, thereby realizing a variable output booster cylinder that meets multiple needs on one production line, thereby improving production efficiency.

[0037] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A supercharged cylinder, characterized in that: It comprises a cylinder body (1), wherein the upper and lower ends of the cylinder body (1) are respectively fixedly connected to a second connecting flange (5) and a first connecting flange (4), and the bottom of the first connecting flange (4) is fixedly connected to a booster cylinder body (2); A through hole is provided in the center of the bottom wall of the booster cylinder (2), a booster piston rod (3) is sleeved and slidably connected to the bottom wall through hole of the booster cylinder (2), and a booster piston plate (15) is fixedly connected to the top of the booster piston rod (3); The upper end of the cavity of the cylinder body (1) is slidably connected to a cylinder piston plate (7), and the center of the bottom of the cylinder piston plate (7) is vertically fixedly connected to a cylinder piston rod (9); the lower end of the cavity of the cylinder body (1) is provided with a multi-stage annular groove (11), and the multi-stage annular groove (11) is composed of circular grooves with uniformly decreasing cross-sectional areas from top to bottom, and a telescopic cylinder (10) is fixedly connected in the uppermost circular groove of the multi-stage annular groove (11), and the telescopic cylinder (10) includes a multi-stage sleeve, and the innermost sleeve of the telescopic cylinder (10) is fixedly connected to the bottom of the cylinder piston rod (9); A through hole is formed through the center of the first connecting flange (4), and an oil storage chamber (13) is arranged between the telescopic cylinder (10) and the booster piston plate (15); a through hole is formed through the center of the second connecting flange (5), and an air inlet (6) is fixedly connected to the center of the top of the second connecting flange (5), and an air storage chamber (16) is arranged between the air inlet (6) and the cylinder piston plate (7).

2. A supercharged cylinder according to claim 1, characterized in that: The number of sleeves in the telescopic cylinder (10) corresponds to the number of superimposed circular grooves in the multi-stage annular groove (11), and when the telescopic cylinder (10) is fully extended, the outer wall of the sleeve fits the inner wall of the circular groove.

3. A supercharged cylinder according to claim 2, characterized in that: The outermost sleeve in the telescopic cylinder (10) is fixedly connected to the uppermost circular groove in the multi-stage annular groove (11).

4. A supercharged cylinder according to claim 3, characterized in that: The top of the sleeve in the telescopic cylinder (10) is fixedly connected with a threaded seat (17), and the threaded seat (17) is penetrated by a threaded groove.

5. A supercharged cylinder according to claim 4, characterized in that: The inner wall of the upper end of the cavity of the cylinder body (1) is evenly provided with a plurality of first sliding grooves (8), and the edge of the cylinder piston plate (7) is provided with a plurality of protrusions, which are tightly fitted in the first sliding grooves (8).

6. A supercharged cylinder according to claim 5, characterized in that: The inner wall of the multi-stage annular groove (11) is evenly provided with a plurality of second sliding grooves (12); the outer side of each individual sleeve in the telescopic cylinder (10) is provided with a plurality of protrusions, and the protrusions are tightly fitted in the second sliding grooves (12); the inner side of each individual sleeve in the telescopic cylinder (10) is provided with a plurality of grooves, and the grooves are tightly fitted on the outer side protrusions of the sleeves adjacent to the inner side of the sleeve.

7. A supercharged cylinder according to claim 6, characterized in that: A plurality of third slide grooves (14) are evenly arranged on the inner wall of the cavity of the boosting cylinder (2), and a plurality of protrusions are arranged on the edge of the boosting piston plate (15), and the protrusions are tightly fitted in the third slide grooves (14).

8. A supercharged cylinder according to claim 7, characterized in that: Adjacent sleeves in the telescopic cylinder (10) are threadedly connected to threaded rods (18) in the threaded seat (17), thereby controlling the pressure application area of ​​the telescopic cylinder (10).

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