Ball fluid-imitating force increasing device

Abstract

The invention discloses a ball fluid-imitating reinforcement device, which relates to the field of medical equipment, and comprises a containing cavity of a hollow structure, the two ends of the containing cavity are respectively provided with a first insertion hole and a second insertion hole, and the containing cavity is filled with a plurality of balls; one end of the first push rod penetrates through the first insertion hole and extends into the accommodating cavity; one end of the second push rod penetrates through the second insertion hole and extends into the accommodating cavity; the first push rod and the second push rod are cylinders with equal diameters; the cross section area of the first push rod is smaller than that of the second push rod; according to the force increasing device, the ball which cannot be extruded and deformed is arranged in the containing cavity, when extrusion force is applied to the first push rod, the second push rod can be extruded by the ball to move in the direction away from the containing cavity, due to the fact that the cross sectional area of the second push rod is large, the movement speed of the second push rod can be decreased, but the thrust can be increased, and therefore the pressing force can be increased; and the device does not have the condition of oil leakage.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment, and more specifically, relates to a ball-like fluid-enhancing device. Background Art

[0002] In medical equipment, in order to increase the load capacity of the rotating joint after locking, it is usually necessary to increase the boost pressure or increase the friction coefficient or increase the contact radius. When the contact radius cannot be increased due to limited structural space, the static friction coefficient cannot be further increased due to material limitations, and the traditional screw structure lead and transmission torque limitations cannot further increase the clamping force, the Bernoulli principle can be used to convert the high-speed and low-pressure fluid into low-speed and high-pressure to further achieve thrust amplification. However, the establishment of a hydraulic environment requires hydraulic oil, and oil leakage may cause damage to the medical sterile environment. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to provide a ball-like fluid-imitation force-enhancing device, in which a non-extrudable and non-deformable ball is arranged in an accommodating chamber. When an extrusion force is applied to the first push rod, the second push rod will be squeezed by the ball to move away from the accommodating chamber. Since the cross-sectional area of ​​the second push rod is large, the movement speed of the second push rod will be slowed down, but the thrust will be increased, thereby increasing the clamping force and the device will not leak oil.

[0004] In order to achieve the above object, the present invention provides a ball-like fluid-imitation force-increasing device, comprising:

[0005] The accommodating cavity is a hollow structure, with a first plug hole and a second plug hole respectively disposed at two ends of the accommodating cavity, and a plurality of round beads are filled in the accommodating cavity;

[0006] A first push rod, one end of which passes through the first insertion hole and extends into the accommodating cavity;

[0007] A second push rod, one end of which passes through the second insertion hole and extends into the accommodating cavity;

[0008] The first push rod and the second push rod are both cylinders with equal diameters, and the cross-sectional area of ​​the first push rod is smaller than the cross-sectional area of ​​the second push rod.

[0009] Optionally, a first clamping portion is provided on the outer periphery of the middle portion of the first push rod, and the first clamping portion is clamped with the inner wall of the first insertion hole.

[0010] Optionally, a partition is provided in the accommodating cavity, and the partition divides the interior of the accommodating cavity into a buffer cavity and a ball cavity. A third plug hole is provided on the partition, and one end of the first push rod also passes through the third plug hole.

[0011] Optionally, the first clamping portion is movably disposed in the buffer cavity, and a spring is disposed between the first clamping portion and the partition.

[0012] Optionally, a second clamping portion is provided at one end of the second push rod, the second clamping portion is arranged in alignment with the second push rod, and the second clamping portion is clamped with an inner wall of the second insertion hole.

[0013] Optionally, an outer periphery of the second clamping portion fits with an inner wall of the accommodating cavity.

[0014] Optionally, the other end of the first push rod is a force-applying end.

[0015] Optionally, the round balls are steel balls.

[0016] Optionally, the partition is detachably connected to the accommodating cavity.

[0017] The present invention provides a ball-like fluid booster device, which has the beneficial effect that two push rods with different diameters and different materials are used in the booster device to achieve a boost effect at the output end, and the cross-sectional diameters of the first push rod and the second push rod are set to a certain ratio, which can achieve both a force reduction and speed increase effect and a force boost and speed reduction effect, and effectively reduces the potential contamination that may be caused by leakage in the form of conventional fluids.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0020] Figure 1 A schematic diagram of a ball-like fluid-enhancing device according to an embodiment of the present invention is shown.

[0021] Description of reference numerals:

[0022] 1. First plug hole; 2. Second plug hole; 3. Steel ball; 4. First push rod; 5. Second push rod; 6. First clamping part; 7. Partition; 8. Spring; 9. Second clamping part. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0024] The present invention provides a ball-like fluid-imitation force-increasing device, comprising:

[0025] The accommodating cavity is a hollow structure, with a first plug hole and a second plug hole respectively disposed at both ends of the accommodating cavity, and a plurality of round beads are filled in the accommodating cavity;

[0026] A first push rod, one end of which passes through the first insertion hole and extends into the accommodating cavity;

[0027] A second push rod, one end of which passes through the second insertion hole and extends into the accommodating cavity;

[0028] The first push rod and the second push rod are both cylinders with equal diameters, and the cross-sectional area of ​​the first push rod is smaller than the cross-sectional area of ​​the second push rod.

[0029] Specifically, the force-increasing device uses the first push rod as the force-applying end, and moves into the accommodating cavity after the first push rod is subjected to force, thereby reducing the space in the accommodating cavity. Since a plurality of round balls are arranged in the accommodating cavity, when the space in the accommodating cavity is reduced to a certain extent, the round balls can fill up the internal space completely, thus transmitting the force of the first push rod to the second push rod; since the cross-sectional areas of the two push rods are completely different, the force is transmitted from the push rod with a small cross-sectional area to the push rod with a large cross-sectional area, thus the second push rod will have a force-increasing and decelerating effect after being subjected to force. The force-increasing device is used in medical equipment to amplify the thrust, thus increasing the clamping force, and using a cylinder instead of liquid in the accommodating cavity can avoid the leakage of oil and liquid that causes damage to the medical sterile environment.

[0030] The force-enhancing device realizes the way of increasing the pressure at the output end through the principle of fluid mechanics. The cross-sectional diameter of the first push rod at the input end is small and the cross-sectional area is small. Under the conditions of constant thrust and constant push rod speed, the volume of the ball pushed per unit time is constant. Because the total volume of the inner cavity remains unchanged, the cross-sectional diameter of the second push rod at the output end is large and the cross-sectional area is large, so the movement speed of the push rod at the output end is slow, which can provide increased thrust. Considering that the potential mechanical energy loss of the steel ball imitation fluid system is greater than the fluid loss, the desired output end thrust can be achieved by adjusting the input and output end diameter ratio.

[0031] Optionally, a first clamping portion is provided on the outer periphery of the middle portion of the first push rod, and the first clamping portion is clamped with the inner wall of the first insertion hole.

[0032] Specifically, in order to prevent the first push rod from being separated from the accommodating cavity, a first clamping portion is provided on the first push rod, and when the first push rod moves toward the outside of the accommodating cavity, the first clamping portion will be clamped with the inner wall of the first insertion hole.

[0033] Optionally, a partition is provided in the accommodating chamber, the partition divides the interior of the accommodating chamber into a buffer chamber and a bead chamber, a third plug hole is provided on the partition, and one end of the first push rod also passes through the third plug hole.

[0034] Optionally, the first clamping portion is movably arranged in the buffer cavity, and a spring is arranged between the first clamping portion and the partition.

[0035] Specifically, a partition is provided in the accommodating cavity, and the accommodating cavity is divided into a buffer cavity and a ball cavity by the partition. The first push rod passes through the buffer cavity and extends into the ball cavity. When the first push rod moves into the accommodating cavity, it is necessary to continue to squeeze the spring through the first clamping part before the first push rod can slowly enter the ball cavity, so as to avoid the first push rod entering quickly and failing to transmit force to the surface of the ball, causing the first push rod to slide over the surface of the ball and directly contact the second push rod, and failing to achieve the gradual transmission of force.

[0036] Optionally, a second clamping portion is provided at one end of the second push rod, the second clamping portion is arranged in alignment with the second push rod, and the second clamping portion is clamped with the inner wall of the second insertion hole.

[0037] Specifically, the second clamping portion on the second push rod has the same function as the first clamping portion.

[0038] Optionally, the outer periphery of the second clamping portion fits with the inner wall of the accommodating cavity.

[0039] Specifically, when the first push rod is inserted into the accommodating cavity, the space inside the accommodating cavity is reduced, and the balls will be squeezed against each other. When the balls have nowhere to move, the force of the balls will be transmitted to the second clamping part, pushing the second push rod to move outward. The second clamping part makes the force more uniform and can also ensure that the movement direction of the second push rod is correct.

[0040] Optionally, the other end of the first push rod is a force-applying end.

[0041] Optionally, the round ball is a steel ball.

[0042] Optionally, the partition is detachably connected to the accommodating cavity.

[0043] Specifically, the force-enhancing device uses steel balls to fill the accommodating chamber, which can increase the service life; the accommodating chamber in the device is a detachable structure. The partition is removed, so that the wall of the buffer chamber and the wall of the ball chamber will be separated, and the two push rods can be removed from the device. The second push rod with a different cross-sectional diameter can be replaced as needed to achieve the required output thrust.

[0044] Example

[0045] like Figure 1 As shown, the present invention provides a ball-like fluid-imitation force-increasing device, comprising:

[0046] The accommodating cavity is a hollow structure, and a first plug hole 1 and a second plug hole 2 are respectively provided at both ends of the accommodating cavity, and a plurality of steel balls 3 are filled in the accommodating cavity;

[0047] A first push rod 4, one end of which passes through the first insertion hole 1 and extends into the accommodating cavity;

[0048] A second push rod 5, one end of which passes through the second insertion hole 2 and extends into the accommodating cavity;

[0049] The cross-sectional area of ​​the first push rod 4 is smaller than the cross-sectional area of ​​the second push rod 5 .

[0050] In this embodiment, a first clamping portion 6 is provided on the outer periphery of the middle portion of the first push rod 4 , and the first clamping portion 6 is clamped with the inner wall of the first insertion hole 1 .

[0051] In this embodiment, a partition 7 is provided in the accommodating chamber, which divides the interior of the accommodating chamber into a buffer chamber and a bead chamber. A third plug hole is provided on the partition 7, and one end of the first push rod 4 also passes through the third plug hole.

[0052] In this embodiment, the first clamping portion 6 is movably disposed in the buffer cavity, and a spring 8 is disposed between the first clamping portion 6 and the partition plate 7 .

[0053] In this embodiment, a second clamping portion 9 is disposed at one end of the second push rod 5 , the second clamping portion 9 is disposed in alignment with the second push rod 5 , and the second clamping portion 9 is clamped with the inner wall of the second insertion hole 2 .

[0054] In this embodiment, the outer periphery of the second clamping portion 9 fits with the inner wall of the accommodating cavity.

[0055] In summary, during the use of the force-enhancing device, the second push rod 5 is subjected to a reaction force F2, and the reaction force F2 is applied in the direction of the accommodating chamber. In order to achieve the force-enhancing effect on the second push rod 5, a force F1 is now applied to the first push rod 4, and F1>F2. In this way, after the steel ball 3 in the accommodating chamber is squeezed in the space inside the accommodating chamber, a force F3 is applied to the second push rod 5. The force F3 drives the second push rod 5 to move away from the accommodating chamber, thereby achieving the force-enhancing effect of the second push rod, wherein F3=F1+F2.

[0056] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A ball-like fluid booster device, characterized in that: include: The accommodating cavity is a hollow structure, with a first plug hole and a second plug hole respectively disposed at two ends of the accommodating cavity, and a plurality of round beads are filled in the accommodating cavity; A first push rod, one end of which passes through the first insertion hole and extends into the accommodating cavity; A second push rod, one end of which passes through the second insertion hole and extends into the accommodating cavity; The first push rod and the second push rod are both cylinders with equal diameters, and the cross-sectional area of ​​the first push rod is smaller than the cross-sectional area of ​​the second push rod.

2. The ball-like fluid booster device according to claim 1, characterized in that: A first clamping portion is disposed on the outer periphery of the middle portion of the first push rod, and the first clamping portion is clamped with the inner wall of the first insertion hole.

3. The ball-like fluid booster device according to claim 2, characterized in that: A partition is arranged in the accommodating cavity, and the partition divides the interior of the accommodating cavity into a buffer cavity and a ball cavity. A third plug hole is arranged on the partition, and one end of the first push rod also passes through the third plug hole.

4. The ball-like fluid booster device according to claim 3, characterized in that: The first clamping portion is movably disposed in the buffer cavity, and a spring is disposed between the first clamping portion and the partition plate.

5. The ball-like fluid booster device according to claim 3, characterized in that: A second clamping portion is provided at one end of the second push rod, the second clamping portion is arranged in alignment with the second push rod, and the second clamping portion is clamped with the inner wall of the second insertion hole.

6. The ball-like fluid booster device according to claim 5, characterized in that: The outer periphery of the second clamping portion is in contact with the inner wall of the accommodating cavity.

7. The ball-like fluid booster device according to claim 1, characterized in that: The other end of the first push rod is a force-applying end.

8. The ball-like fluid booster device according to claim 1, characterized in that: The round balls are steel balls.

9. The ball-like fluid booster device according to claim 3, characterized in that: The partition plate is detachably connected to the accommodating cavity.

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