Air cylinder with adjustable stroke
By setting limit plates and screws inside the cylinder and adjusting the screw position using the turntable and scale, the problem of low air pressure control accuracy of existing cylinders is solved, and the precise adjustment of the air pressure rod stroke and the flexibility of cylinder use is achieved.
Patent Information
- Application Number
- CN202420002091.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-02
AI Technical Summary
When existing cylinders control the stroke by directly using air pressure, the accuracy is low, which is not conducive to the effective use of the cylinder.
A cylinder with adjustable stroke is designed. By setting a limit plate and screw inside the cylinder, the position of the screw is adjusted using a turntable and scale, thereby achieving stroke adjustment of the air pressure rod.
Through the coordination of the limiting plate and the screw, the precise adjustment of the stroke of the air pressure rod is achieved, and the accuracy and flexibility of the cylinder are improved.
Smart Images
Figure CN222502268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cylinders, in particular to a cylinder with adjustable stroke. Background Art
[0002] The cylinder is a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder. It is a key component that converts thermal energy into mechanical energy and is used in engines, compressors, turbines, rotary piston engines, etc.
[0003] When the cylinder is in use, according to the use requirements of the cylinder, some cylinders need to control the stroke of the gas pressure rod inside the cylinder to expand the use range of the cylinder. The stroke is directly controlled by the air pressure inside the cylinder, which has low accuracy and is not conducive to the use of the cylinder. Therefore, a cylinder is now needed that can adjust the stroke of the gas pressure rod by limiting the inside of the cylinder. Utility Model Content
[0004] The purpose of the utility model is to provide a cylinder with adjustable stroke, which has the advantage of adjusting the stroke of the gas pressure rod by limiting the inside of the cylinder, and solves the problem that the stroke is directly controlled by the air pressure inside the cylinder, which has low accuracy and is not conducive to the use of the cylinder.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stroke-adjustable cylinder, comprising a pneumatic rod, a pneumatic cylinder, a piston plate, a limit plate, a bracket and a screw, wherein a first through hole and a second through hole are respectively provided in the middle of both ends of the pneumatic cylinder, the pneumatic rod is movably installed in the interior of the pneumatic cylinder through the first through hole, and one end of the pneumatic rod located in the interior of the pneumatic cylinder is fixed in the middle of one side of the piston plate, a screw hole is provided in the middle of the bracket, the bracket is welded to one end of the pneumatic cylinder located in the second through hole, scales are provided in the middle of both sides of the screw, the screw is threadedly installed in the screw hole, one end of the screw is movably installed in the interior of the pneumatic cylinder through the second through hole, and one end of the screw located in the interior of the pneumatic cylinder is fixed in the middle of one side of the limit plate, and a turntable is fixed to the end of the screw facing away from the limit plate.
[0006] Preferably, the piston plate and the limit plate are both located inside the pneumatic cylinder, the piston plate and the limit plate are both circular, the diameter of the piston plate is adapted to the diameter of the inner side of the pneumatic cylinder, the diameter of the piston plate is larger than the diameter of the limit plate, and the piston plate and the limit plate correspond to each other.
[0007] Preferably, sealing rings are fixed to the inner sides of the first through hole and the second through hole, and the inner sides of the two sealing rings are respectively matched with the outer sides of the pneumatic rod and the screw rod.
[0008] Preferably, the outer diameter of the bracket is equal to the outer diameter of the pneumatic cylinder, and the outer side of the screw rod is matched with the inner side of the screw hole.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0010] 1. The utility model is conducive to achieving the effect of adjusting the travel of the pneumatic rod by setting a limit plate and a screw rod. When the pneumatic rod is used, according to different usage requirements, the screw rod is driven to move in the screw hole through the operation of the turntable, so that the limit plate is moved inside the pneumatic cylinder, and the moving position can be accurately adjusted through the scale. During the movement of the pneumatic rod, the stroke of the pneumatic rod can be limited by the joint between the piston plate and the limit plate, which is convenient for adjusting the stroke of the pneumatic rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0013] Figure 3 It is a side structural schematic diagram of the utility model.
[0014] In the figure: 1. pneumatic rod; 2. first through hole; 3. pneumatic cylinder; 4. piston plate; 5. limit plate; 6. second through hole; 7. bracket; 8. screw hole; 9. screw rod; 10. scale; 11. turntable. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] Embodiment 1
[0019] See also Figures 1 to 3 The utility model provides an embodiment: a stroke-adjustable cylinder, comprising a pneumatic rod 1, a pneumatic cylinder 3, a piston plate 4, a limit plate 5, a bracket 7 and a screw 9. A first through hole 2 and a second through hole 6 are respectively provided in the middle of both ends of the pneumatic cylinder 3. The pneumatic rod 1 is movably installed in the interior of the pneumatic cylinder 3 through the first through hole 2, and the end of the pneumatic rod 1 located in the interior of the pneumatic cylinder 3 is fixed in the middle of one side of the piston plate 4. A screw hole 8 is provided in the middle of the bracket 7. The bracket 7 is welded to one end of the pneumatic cylinder 3 located in the second through hole 6. Scales 10 are provided in the middle of both sides of the screw 9. The screw 9 is threadedly installed in the screw hole 8. One end of the screw 9 is movably installed in the interior of the pneumatic cylinder 3 through the second through hole 6, and the end of the screw 9 located in the interior of the pneumatic cylinder 3 is fixed in the middle of one side of the limit plate 5. A turntable 11 is fixed to the end of the screw 9 away from the limit plate 5.
[0020] The piston plate 4 and the limit plate 5 are both located inside the pneumatic cylinder 3. The piston plate 4 and the limit plate 5 are both circular. The diameter of the piston plate 4 matches the diameter of the inner side of the pneumatic cylinder 3. The diameter of the piston plate 4 is larger than the diameter of the limit plate 5, and the piston plate 4 and the limit plate 5 correspond to each other.
[0021] The outer diameter of the bracket 7 is equal to the outer diameter of the pneumatic cylinder 3 , and the outer side of the screw rod 9 is matched with the inner side of the screw hole 8 .
[0022] When the pneumatic rod 1 is used, according to different usage requirements, the screw rod 9 is driven to move in the screw hole 8 through the operation of the turntable 11, so that the limit plate 5 moves inside the pneumatic cylinder 3, and the moving position can be accurately adjusted through the scale 10. During the movement of the pneumatic rod 1, the stroke of the pneumatic rod 1 can be limited through the connection between the piston plate 4 and the limit plate 5, which facilitates the adjustment of the stroke of the pneumatic rod 1.
[0023] Embodiment 2
[0024] See also Figures 1 to 3, the utility model provides an embodiment: a stroke-adjustable cylinder. Compared with the first embodiment, the present embodiment further includes: a pneumatic rod 1, a pneumatic cylinder 3, a piston plate 4, a limit plate 5, a bracket 7 and a screw 9. The middle parts of both ends of the pneumatic cylinder 3 are respectively provided with a first through hole 2 and a second through hole 6. The pneumatic rod 1 is movably mounted inside the pneumatic cylinder 3 through the first through hole 2, and one end of the pneumatic rod 1 located inside the pneumatic cylinder 3 is fixed to the middle part of one side of the piston plate 4. A screw hole 8 is provided in the middle part of the bracket 7. The bracket 7 is welded to one end of the pneumatic cylinder 3 located at the second through hole 6. Scales 10 are provided in the middle part of both sides of the screw 9. The screw 9 is threadedly mounted in the screw hole 8. One end of the screw 9 is movably mounted inside the pneumatic cylinder 3 through the second through hole 6, and one end of the screw 9 located inside the pneumatic cylinder 3 is fixed to the middle part of one side of the limit plate 5. A turntable 11 is fixed to the end of the screw 9 away from the limit plate 5.
[0025] Sealing rings are fixed to the inner sides of the first through hole 2 and the second through hole 6 , and the inner sides of the two sealing rings are respectively matched with the outer sides of the pneumatic rod 1 and the screw rod 9 .
[0026] The sealing rings on the first through hole 2 and the second through hole 6 improve the sealing inside the pneumatic cylinder 3, which is beneficial to the use of the pneumatic rod 1. When the pneumatic rod 1 is in use, the air pressure enters the inside of the pneumatic cylinder 3 through the bottom of the pneumatic cylinder 3. At the same time, the gas can move on the outside of the limit plate 5 without affecting the force of the gas on the piston plate 4.
[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A stroke-adjustable cylinder, comprising a pneumatic rod (1), a pneumatic cylinder (3), a piston plate (4), a limit plate (5), a bracket (7) and a screw rod (9), characterized in that: A first through hole (2) and a second through hole (6) are respectively provided in the middle of both ends of the pneumatic cylinder (3); the pneumatic rod (1) is movably mounted inside the pneumatic cylinder (3) through the first through hole (2); and one end of the pneumatic rod (1) located inside the pneumatic cylinder (3) is fixed to the middle of one side of the piston plate (4); a screw hole (8) is provided in the middle of the bracket (7); the bracket (7) is welded to one end of the pneumatic cylinder (3) located at the second through hole (6); scales (10) are provided in the middle of both sides of the screw rod (9); the screw rod (9) is threadedly mounted in the screw hole (8); one end of the screw rod (9) is movably mounted inside the pneumatic cylinder (3) through the second through hole (6); and one end of the screw rod (9) located inside the pneumatic cylinder (3) is fixed to the middle of one side of the limit plate (5); and a rotating disk (11) is fixed to one end of the screw rod (9) away from the limit plate (5).
2. A stroke-adjustable cylinder according to claim 1, characterized in that: The piston plate (4) and the limit plate (5) are both located inside the pneumatic cylinder (3); the piston plate (4) and the limit plate (5) are both circular; the diameter of the piston plate (4) matches the diameter of the inner side of the pneumatic cylinder (3); the diameter of the piston plate (4) is larger than the diameter of the limit plate (5); and the piston plate (4) and the limit plate (5) correspond to each other.
3. A stroke-adjustable cylinder according to claim 1, characterized in that: Sealing rings are fixed on the inner sides of the first through hole (2) and the second through hole (6), and the inner sides of the two sealing rings are respectively matched with the outer sides of the pneumatic rod (1) and the screw rod (9).
4. The stroke-adjustable cylinder according to claim 1, characterized in that: The outer diameter of the bracket (7) is equal to the outer diameter of the pneumatic cylinder (3), and the outer side of the screw rod (9) is matched with the inner side of the screw hole (8).