Hydraulic press of action amplifier

Abstract

The utility model discloses a hydraulic press of an action amplifier. The hydraulic press comprises a cylinder barrel, a piston rod and an elastic component. A piston part is arranged at one end of the piston rod, the piston part is connected to the cylinder barrel in a sliding mode, a liquid containing cavity is formed between the piston part and the cylinder barrel, and the cylinder barrel is provided with a connecting nozzle communicated with the liquid containing cavity. The elastic component is located on one side of the cylinder barrel and extends in the length direction of the cylinder barrel, and the two ends of the elastic component are connected to the cylinder barrel and the piston rod respectively. Wherein the piston rod moves along the cylinder barrel, and under the state that the liquid containing cavity is enlarged, the deformation quantity of the elastic component is increased. According to the hydraulic press of the action amplifier, the elastic component is connected to the outer portions of the cylinder barrel and the piston rod, when the elasticity of the elastic component is insufficient or the elastic component is damaged, a new elastic component can be conveniently and directly replaced, the service life of the hydraulic press of the action amplifier is effectively prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to a hydraulic device of an action amplifier. Background Art

[0002] In the prior art, there is a hydraulic assembly including a first hydraulic, a second hydraulic and a connecting pipe. The first hydraulic includes a first cylinder, a first piston rod and a first elastic component. The second hydraulic includes a second cylinder, a second piston rod and a second elastic component. The two ends of the connecting pipe are respectively connected to the first hydraulic and the second hydraulic. Under the action of external force, the movement of the first piston rod can make the liquid flow between the first hydraulic and the second hydraulic through the connecting pipe, so that the pressure change inside and outside the second cylinder drives the movement of the second piston rod. When the external force is removed, the first elastic component restores its deformation, pushes the first piston rod to reset, and drives the second piston rod to reset through the flow of liquid in the connecting pipe. Among them, the length of the first cylinder is greater than the length of the second cylinder, and the inner diameter of the first cylinder is greater than the inner diameter of the second cylinder. When the first piston has a small movement, it can drive the second piston to move a long distance, thereby realizing the amplification operation of the execution action.

[0003] The hydraulic assembly can be applied to an action amplifier, which may include a main body, a plurality of action actuators and the hydraulic assembly. A hand-wearing part is provided on the main body. Each action actuator is movably provided on the main body. The first hydraulic of each hydraulic assembly is provided on the main body, and the second piston rod of the second hydraulic of each hydraulic assembly is connected to the corresponding action actuator. Under the action of external force, the first piston rod of the first hydraulic can move along the first cylinder to drive the corresponding action actuator to move through the second piston rod of the second hydraulic. The action amplifier can be a hand amplification device, for example, the main body can be the main body of a manipulator, the action actuator can be the finger of the manipulator, the first hydraulic can be provided on the main body, and the piston rod of the second hydraulic can be connected to at least the finger of the action actuator. The second hydraulic can be fixed on the main body or on the finger.

[0004] However, the second elastic component in the second hydraulic press in the prior art is sleeved on the second piston rod and located inside the second cylinder. After the action amplifier has been used for a period of time, when the elastic force of the second elastic component is weakened or damaged during multiple compressions and recovery deformations, the action amplifier will perform inaccurate actions or be unable to perform actions. However, the second elastic component is located inside the second cylinder, making it difficult or impossible to replace the second elastic component, which reduces the service life of the second hydraulic press and increases the cost of use.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The utility model provides a hydraulic device of an action amplifier.

[0007] This application provides the following technical solutions:

[0008] A hydraulic press of an action amplifier, comprising:

[0009] Cylinder barrel;

[0010] A piston rod, one end of which is provided with a piston portion, the piston portion is slidably connected to the cylinder, a liquid containing cavity is formed between the piston portion and the cylinder, and the cylinder has a connecting nozzle connected to the liquid containing cavity;

[0011] An elastic component, the elastic component is located on one side of the cylinder and extends along the length direction of the cylinder, and two ends of the elastic component are respectively connected to the cylinder and the piston rod;

[0012] When the piston rod moves along the cylinder barrel and the liquid containing cavity is enlarged, the deformation amount of the elastic component increases;

[0013] Wherein, a first extension body is arranged on the cylinder, and the first extension body protrudes from the outer surface of the cylinder;

[0014] A second extension body is provided on the piston rod, and the second extension body protrudes from the piston rod along a length direction perpendicular to the piston rod;

[0015] Two ends of the elastic component are respectively connected to the first extension body and the second extension body.

[0016] Optionally, two ends of the elastic component are respectively provided with rings, and the two rings are respectively sleeved on the first extension body and the second extension body.

[0017] Optionally, the first extension body includes a first extension main body and a first axial extension portion, the first extension main body is connected to the cylinder, the first axial extension portion is arranged at the end of the first extension body and extends to the side away from the second extension body, and the ring is sleeved on the first extension main body of the first extension body and is limited between the first axial extension portion and the cylinder.

[0018] Optionally, the second extension body includes a second extension main body and a second axial extension portion, the second extension main body is connected to the piston rod, the second axial extension portion is arranged at the end of the second extension body and extends to the side away from the first extension body, and the ring is sleeved on the second extension main body of the second extension body and is limited between the second axial extension portion and the piston rod.

[0019] Optionally, the cylinder comprises a cylinder body and an end cover, a cylinder opening is arranged at one end of the cylinder body, the end cover is connected to the cylinder body, and the end cover closes the cylinder opening;

[0020] The first extension body is arranged on the end cover.

[0021] Optionally, the end cover includes an end cover cylinder and an extension seat;

[0022] The end cover tube is connected to the cylinder body and closes the cylinder mouth. The extension seat is connected to the end cover tube and extends along the cylinder body to a side away from the second extension body. The first extension body is arranged at the end of the extension seat.

[0023] The piston rod is slidably arranged to penetrate the end cover cylinder.

[0024] Optionally, the extension seat includes an arc-shaped strip and two side baffles;

[0025] The arc-shaped strip is attached to the cylinder and extends along the length direction of the cylinder;

[0026] The two side baffles are arranged on both sides of the arc-shaped strip along the width direction;

[0027] The elastic component is located between the two side baffles, the first extension body is connected to the arc-shaped strip plate, and the first extension body is located between the two side baffles.

[0028] Optionally, the end cover cylinder comprises two half cover shells, two ends of one of the two half cover shells are respectively provided with a first clamping groove, and two ends of the other half cover shells are respectively provided with a first clamping protrusion;

[0029] The middle parts of the two half-cover shells are each provided with a second clamping groove, and the cylinder body is provided with a second clamping protrusion;

[0030] When the end cap tube is connected to the tube body, each first clamping protrusion is respectively clamped in the corresponding first clamping groove, and each second clamping protrusion is respectively clamped in the corresponding second clamping groove;

[0031] The extension seat is connected to one of the half cover shells.

[0032] Optionally, ends of the first extension body and the second extension body on the opposite sides are both provided with inclined surfaces.

[0033] By adopting the above technical solution, the present application has the following beneficial effects:

[0034] The elastic component of the hydraulic machine of the action amplifier of the present application is connected to the outside of the cylinder and the piston rod. When the elastic component is insufficiently elastic or damaged, it can be conveniently and directly replaced with a new elastic component, which effectively extends the service life of the hydraulic machine of the action amplifier of the present application and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation of the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of the structure of a hydraulic device of an action amplifier provided in an embodiment of the utility model;

[0037] Figure 2 An exploded diagram of a hydraulic machine of an action amplifier provided in an embodiment of the utility model;

[0038] Figure 3 A schematic structural diagram of the end cover and the first extension body of the hydraulic machine of the action amplifier provided in an embodiment of the utility model.

[0039] In the figure: cylinder 1, connecting nozzle 11, cylinder body 12, cylinder mouth 121, second clamping protrusion 122, end cover 13, end cover cylinder 131, through hole 1311, extension seat 132, arc strip plate 1321, side baffle 1322, first clamping groove 133, first clamping protrusion 134, second clamping groove 135, first extension body 14, first extension main body 141, first axial extension portion 142, piston rod 2, piston portion 21, second extension body 22, second extension main body 221, second axial extension portion 222, elastic component 3, collar 31, inclined surface a. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] See also Figures 1 to 3 As shown, the embodiment of the present application provides a hydraulic device of an action amplifier, comprising: a cylinder 1, a piston rod 2 and an elastic component 3. A piston portion 21 is provided at one end of the piston rod 2, and the piston portion 21 is slidably connected to the cylinder 1. A liquid-containing cavity is formed between the piston portion 21 and the cylinder 1, and the cylinder 1 has a connecting nozzle 11 connected to the liquid-containing cavity. The elastic component 3 is located on one side of the cylinder 1, and the elastic component 3 extends along the length direction of the cylinder 1. The two ends of the elastic component 3 are respectively connected to the cylinder 1 and the piston rod 2. Among them, when the piston rod 2 moves along the cylinder 1 and the liquid-containing cavity is enlarged, the deformation amount of the elastic component 3 increases. The elastic component 3 of the hydraulic device of the action amplifier of the present application is connected to the outside of the cylinder 1 and the piston rod 2. When the elastic component 3 is insufficient in elasticity or damaged, a new elastic component 3 can be conveniently and directly replaced, which effectively prolongs the service life of the hydraulic device of the action amplifier of the present application and reduces the use cost.

[0044] The cylinder 1 is provided with a first extension body 14, which protrudes from the outer surface of the cylinder 1 and extends in a direction perpendicular to the length of the cylinder 1. The piston rod 2 is provided with a second extension body 22, which protrudes from the piston rod 2 in a direction perpendicular to the length of the piston rod 2. Both ends of the elastic component 3 are connected to the first extension body 14 and the second extension body 22, respectively. The first extension body 14 and the second extension body 22 are both located on the same side of the cylinder 1 and the piston rod 2, and the line connecting the tops of the first extension body 14 and the second extension body 22 is parallel to the length direction of the cylinder 1 and the piston rod 2.

[0045] In a possible implementation, the elastic component 3 is provided with a collar 31 at both ends, and the two collars 31 are respectively sleeved on the first extension body 14 and the second extension body 22. The elastic component 3 can be a spring, and the plane where the collar 31 is located is perpendicular to the cross section of the elastic component 3, and the collar 31 is conveniently sleeved on the first extension body 14 and the second extension body 22.

[0046] The first extension body 14 includes a first extension body 141 and a first axial extension portion 142. The first extension body 141 is connected to the cylinder 1. The first axial extension portion 142 is arranged at the end of the first extension body 14 and extends to the side away from the second extension body 22. The collar 31 is sleeved on the first extension body 141 of the first extension body 14 and is limited between the first axial extension portion 142 and the cylinder 1. A first limiting groove is formed between the cylinder 1, the first extension body 141 and the first axial extension portion. The opening of the first limiting groove is located on the side away from the second extension body 22. The collar 31 is sleeved on the first extension body 141 and is limited in the first limiting groove, so that the collar 31 is not easy to be disengaged.

[0047] The second extension body 22 includes a second extension body 221 and a second axial extension portion 222, the second extension body 221 is connected to the piston rod 2, the second axial extension portion 222 is arranged at the end of the second extension body 22 and extends to the side away from the first extension body 14, a collar 31 is sleeved on the second extension body 221 of the second extension body 22 and is limited between the second axial extension portion 222 and the piston rod 2. A second limiting groove is formed between the cylinder 1, the second extension body 221 and the second axial extension portion, the opening of the second limiting groove is located on the side away from the first extension body 14, a collar 31 is sleeved on the second extension body 221 and is limited in the second limiting groove, so that the collar 31 is not easy to be disengaged.

[0048] In a possible implementation, the cylinder 1 includes a cylinder body 12 and an end cover 13. A cylinder opening 121 is disposed at one end of the cylinder body 12. The end cover 13 is connected to the cylinder body 12 and closes the cylinder opening 121. The first extension body 14 is disposed on the end cover 13.

[0049] The end cap 13 includes an end cap tube 131 and an extension seat 132. The end cap tube 131 is connected to the cylinder body 12, and the end cap tube 131 closes the cylinder mouth 121. The extension seat 132 is connected to the end cap tube 131, and the extension seat 132 extends along the cylinder body 12 to the side away from the second extension body 22, and the first extension body 14 is arranged at the end of the extension seat 132. The piston rod 2 is slidably arranged to penetrate the end cap tube 131. A through hole 1311 is arranged on the end cap tube 131, and the piston rod 2 penetrates the through hole 1311. The through hole 1311 plays a role in avoiding the movement of the piston rod 2. When the piston rod 2 moves, it can drive the piston part 21 to slide in the cylinder 1.

[0050] The extension seat 132 includes an arc strip 1321 and two side baffles 1322. The arc strip 1321 is attached to the cylinder 12 and extends along the length direction of the cylinder 12. The two side baffles 1322 are arranged on both sides of the arc strip 1321 along the width direction. The elastic component 3 is located between the two side baffles 1322. The first extension body 14 is connected to the arc strip 1321, and the first extension body 14 is located between the two side baffles 1322. The two side baffles 1322 limit the elastic component 3 and protect it, preventing the elastic component 3 from being interfered by external structures.

[0051] In a possible implementation, the end cover cylinder 131 includes two half-cover shells, and the two ends of one of the two half-cover shells are respectively provided with a first clamping groove 133, and the two ends of the other are respectively provided with a first clamping protrusion 134. The middle part of the two half-cover shells is provided with a second clamping groove 135, and the cylinder body 12 is provided with a second clamping protrusion 122. When the end cover cylinder 131 is connected to the cylinder body 12, each first clamping protrusion 134 is respectively clamped in the corresponding first clamping groove 133, and each second clamping protrusion 122 is respectively clamped in the corresponding second clamping groove 135, and the extension seat 132 is connected to one of the half-cover shells. The end cover cylinder 131 is detachably connected to the cylinder body 12, and the clamping structure is simple and easy to operate, so that the assembly of the cylinder barrel 1 is very convenient.

[0052] In a possible implementation, the ends of the first extension body 14 and the second extension body 22 on the opposite side are both provided with an inclined surface a. The inclined surface a reduces the volume of the first extension body 14 and the second extension body 22, so that the area of ​​the first extension body 14 and the second extension body 22 protruding from the cylinder 1 and the piston rod 2 is reduced, thereby preventing excessive interference with external structures and playing a role in avoiding external structures.

[0053] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details in detail, nor do they limit the present application to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic pressure machine with an action amplifier, characterized in that: include: Cylinder barrel; A piston rod, one end of which is provided with a piston portion, the piston portion is slidably connected to the cylinder, a liquid containing cavity is formed between the piston portion and the cylinder, and the cylinder has a connecting nozzle connected to the liquid containing cavity; An elastic component, the elastic component is located on one side of the cylinder and extends along the length direction of the cylinder, and two ends of the elastic component are respectively connected to the cylinder and the piston rod; When the piston rod moves along the cylinder barrel and the liquid containing cavity is enlarged, the deformation amount of the elastic component increases; Wherein, a first extension body is arranged on the cylinder, and the first extension body protrudes from the outer surface of the cylinder; A second extension body is provided on the piston rod, and the second extension body protrudes from the piston rod along a length direction perpendicular to the piston rod; Two ends of the elastic component are respectively connected to the first extension body and the second extension body.

2. The hydraulic machine of the action amplifier according to claim 1, characterized in that: Rings are respectively arranged at both ends of the elastic component, and the two rings are respectively sleeved on the first extension body and the second extension body.

3. The hydraulic device of the action amplifier according to claim 2, characterized in that: The first extension body includes a first extension main body and a first axial extension portion, the first extension main body is connected to the cylinder, the first axial extension portion is arranged at the end of the first extension body and extends to the side away from the second extension body, and the ring is sleeved on the first extension main body of the first extension body and is limited between the first axial extension portion and the cylinder.

4. The hydraulic device of the action amplifier according to claim 2, characterized in that: The second extension body includes a second extension main body and a second axial extension portion, the second extension main body is connected to the piston rod, the second axial extension portion is arranged at the end of the second extension body and extends to the side away from the first extension body, and the ring is sleeved on the second extension main body of the second extension body and is limited between the second axial extension portion and the piston rod.

5. The hydraulic machine of the action amplifier according to claim 1, characterized in that: The cylinder comprises a cylinder body and an end cover, one end of the cylinder body is provided with a cylinder opening, the end cover is connected to the cylinder body, and the end cover closes the cylinder opening; The first extension body is arranged on the end cover.

6. The hydraulic machine of the action amplifier according to claim 5, characterized in that: The end cover comprises an end cover cylinder and an extension seat; The end cover tube is connected to the cylinder body and closes the cylinder mouth. The extension seat is connected to the end cover tube and extends along the cylinder body to a side away from the second extension body. The first extension body is arranged at the end of the extension seat. The piston rod is slidably arranged to penetrate the end cover cylinder.

7. The hydraulic machine of the action amplifier according to claim 6, characterized in that: The extension seat includes an arc-shaped strip plate and two side baffles; The arc-shaped strip is attached to the cylinder and extends along the length direction of the cylinder; The two side baffles are arranged on both sides of the arc-shaped strip along the width direction; The elastic component is located between the two side baffles, the first extension body is connected to the arc-shaped strip plate, and the first extension body is located between the two side baffles.

8. The hydraulic machine of the action amplifier according to claim 7, characterized in that: The end cover cylinder comprises two half cover shells, two ends of one of the two half cover shells are respectively provided with a first clamping groove, and two ends of the other half cover shells are respectively provided with a first clamping protrusion; The middle parts of the two half-cover shells are each provided with a second clamping groove, and the cylinder body is provided with a second clamping protrusion; When the end cap tube is connected to the tube body, each first clamping protrusion is respectively clamped in the corresponding first clamping groove, and each second clamping protrusion is respectively clamped in the corresponding second clamping groove; The extension seat is connected to one of the half cover shells.

9. The hydraulic device of the action amplifier according to any one of claims 1 to 8, characterized in that: The ends of the first extension body and the second extension body on the opposite side are both provided with inclined surfaces.

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