Ball fluid-imitating force increasing device

Abstract

The utility model discloses a ball imitated fluid boosting device, which relates to the field of medical equipment, and comprises a hollow accommodating cavity, a first inserting hole and a second inserting hole are respectively arranged at two ends of the accommodating cavity, and a plurality of balls are filled in the accommodating cavity; 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 utility model belongs to the field of medical equipment, and more specifically relates to a ball-like fluid-imitation force-increasing device. Background Art

[0002] In medical devices, increasing the load capacity of locked rotary joints typically requires increasing the boost pressure, friction coefficient, or contact radius. When limited structural space prevents increasing the contact radius, material limitations prevent further increases in the static friction coefficient, and traditional screw lead and transmission torque limitations prevent further increases in clamping force, Bernoulli's principle can be used to further amplify thrust by converting high-speed, low-pressure fluids into low-speed, high-pressure fluids. However, establishing a hydraulic environment requires hydraulic oil, and oil leakage can compromise the sterile medical environment. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the prior art and to provide a ball-like fluid-imitation booster 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 preventing oil leakage from occurring in the device.

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

[0005] The accommodating cavity is a hollow structure, with a first insertion hole and a second insertion hole respectively provided at both ends of the accommodating cavity, and the accommodating cavity is filled with a plurality of round beads;

[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 the inner wall of the second insertion hole.

[0013] Optionally, the outer periphery of the second clamping portion fits into the 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 utility model provides a ball-like fluid boosting device, which has the beneficial effect that two push rods with different diameters and different materials are used in the boosting device to achieve a boosting 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 increase and deceleration effect, and effectively reduces the potential pollution possibility caused by leakage of conventional fluid forms.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. 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 the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

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

[0021] Description of reference numerals:

[0022] 1. First jack; 2. Second jack; 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 following describes preferred embodiments of the present invention in greater detail. Although 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 described herein. Rather, 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 utility model provides a ball-like fluid-imitation force-increasing device, comprising:

[0025] The accommodating cavity is a hollow structure, with a first insertion hole and a second insertion hole provided at both ends of the accommodating cavity respectively, 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-amplifying device uses the first push rod as the force-applying end. After the first push rod is subjected to force, it moves into the accommodating chamber, thereby reducing the space in the accommodating chamber. Since multiple round balls are arranged in the accommodating chamber, when the space in the accommodating chamber is reduced to a certain extent, the round balls can completely fill the internal space, 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 smaller cross-section to the push rod with a larger cross-section. In this way, the second push rod will have a force-increasing and decelerating effect after being subjected to force. This force-amplifying device is used in medical equipment to amplify the thrust, thereby increasing the pressing force. In addition, the use of cylinders instead of liquid in the accommodating chamber can avoid the leakage of oil and the destruction of the medical sterile environment.

[0030] The force-boosting device increases the pressure at the output end through the principles 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. Since 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 output end push rod 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 avoid the first push rod from separating from the accommodating cavity, a first clamping portion is arranged on the first push rod, and the first clamping portion is clamped with the inner wall of the first insertion hole when the first push rod moves out of the accommodating cavity.

[0033] Optionally, a partition plate is arranged in the accommodating cavity, the partition plate divides the accommodating cavity into a buffer cavity and a ball cavity, a third insertion hole is arranged on the partition plate, and one end of the first push rod also penetrates through the third insertion 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 plate.

[0035] Specifically, the partition plate is arranged in the accommodating cavity, the accommodating cavity is divided into a buffer cavity and a ball cavity through the partition plate, the first push rod penetrates through the buffer cavity and extends into the ball cavity, and when the first push rod moves into the accommodating cavity, the spring needs to be continuously pressed through the first clamping portion, and then the first push rod can slowly enter the ball cavity, so that the first push rod cannot quickly enter and transmit force to the surface of the ball, the first push rod directly contacts the second push rod without sliding on the surface of the ball, and the step-by-step transmission of the force cannot be achieved.

[0036] Optionally, one end of the second push rod is provided with a second clamping portion, the second clamping portion is centrally arranged on 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 effect as the first clamping portion.

[0038] Optionally, the outer periphery of the second clamping portion is attached to the inner wall of the accommodating cavity.

[0039] Specifically, when the first push rod is inserted into the accommodating cavity, the space in the accommodating cavity is reduced, the balls are pressed against each other, when the balls have no place to move, the force of the balls is transmitted to the second clamping portion, the second push rod is pushed to move outward, the second clamping portion makes the force more uniform, and the movement direction of the second push rod is ensured to be correct.

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

[0041] Optionally, the balls are steel balls.

[0042] Optionally, the partition plate and the accommodating cavity are detachably connected.

[0043] Specifically, the steel balls are filled into the accommodating cavity in the force increasing device, the service life can be improved, the partition plate is detached in the device, the cavity wall of the buffer cavity and the cavity wall of the ball cavity are separated, the two push rods can be detached from the device, the second push rod with a different cross-sectional diameter can be replaced according to needs, and the required output thrust can be achieved.

[0044] Example

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

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

[0047] A first push rod 4 has one end passing through the first insertion hole 1 and extending into the accommodating cavity;

[0048] A second push rod 5 has one end passing through the second insertion hole 2 and extending 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 cavity, which divides the interior of the accommodating cavity into a buffer cavity and a ball cavity. A third insertion hole is provided on the partition 7, and one end of the first push rod 4 also passes through the third insertion 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 provided at one end of the second push rod 5 . The second clamping portion 9 is arranged 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 is in contact with the inner wall of the accommodating cavity.

[0055] In summary, during the use of the force-boosting device, the second push rod 5 is subjected to a reaction force F2, and this reaction force F2 is applied toward the accommodating chamber. In order to achieve the force-boosting 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-boosting effect of the second push rod, wherein F3=F1+F2.

[0056] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations 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 insertion hole and a second insertion hole respectively provided at both ends of the accommodating cavity, and the accommodating cavity is filled with a plurality of round beads; 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 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.

3. The ball-like fluid booster device according to claim 2, characterized in that: 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.

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.

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 is detachably connected to the accommodating cavity.

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