Rock cutter with reduced energy loss

Abstract

The utility model relates to the technical field of stone cutter, disclose reduce the stone cutter of energy loss, including inner tube spare and outer tube spare, outer tube spare sets up inner tube spare, and inner tube spare is driven relatively and presents the sliding of outer tube spare and carries out the stone operation, inner tube spare includes inner tube body and a plurality of inner rib, and the radial direction of inner rib is arranged away from the convexity of inner tube body, and outer tube spare has inner support ring, and inner support ring is arranged away from the convexity of inner tube spare's direction, and inner support ring is used for providing radial support to inner tube spare. When working, inner tube spare is driven relatively and presents the sliding of outer tube spare's axial direction and works until completing the stone operation, and inner support ring provides radial support to inner tube spare, and cooperates each reinforcing rib and provides axial support, makes the overall structural strength of inner tube spare and outer tube spare greater, and is not easy to damage, simultaneously, the contact between inner tube spare and outer tube spare changes from surface contact to point line contact, reduces the contact area between outer tube spare and inner tube spare, and energy loss is small when working, and the heat quantity is small, thereby increasing work efficiency.

Description

Technical Field

[0001] This utility model patent relates to the technical field of stone crushing tools, and more specifically, to stone crushing tools with reduced energy loss. Background Technology

[0002] Urinary tract stones are a general term for stones in various parts of the urinary system and are a common disease of the urinary system. Depending on the location of the stone, they are divided into kidney stones, ureteral stones, bladder stones, and urethral stones. The main treatment methods for urinary tract stones are laser lithotripsy, pneumatic ballistic lithotripsy, or ultrasonic lithotripsy. Ultrasonic lithotripsy uses a transducer to convert electrical energy into mechanical vibration energy, which is transmitted to an ultrasonic probe and used in conjunction with lithotripsy blades to achieve the stone-breaking effect without causing damage to soft tissues.

[0003] For example, the prior patent with authorization announcement number CN221555813U discloses a multi-frequency ultrasonic lithotripsy waveguide device for the ureter, including an elongated main body, a variable-diameter connecting part located on the proximal side of the main body, and a lithotripsy part located on the distal side of the main body. The main body is a solid cylinder, and the outer wall of the main body has a plurality of support rings spaced apart in the longitudinal direction. The distance between each support ring is mλ / 2, where m is 1 or 2, and λ is the longitudinal wave wavelength of the ultrasonic wave in the multi-frequency ultrasonic lithotripsy waveguide device for the ureter. The variable-diameter connecting part has at least a two-stage variable-diameter structure and is fixedly connected to the main body by welding. The end of the lithotripsy part facing the stone has a non-planar structure.

[0004] In existing technologies, the blade tube suffers significant energy loss during operation and its overall structural strength is insufficient, making it prone to damage and resulting in a poor service life for the stone crushing blade. Utility Model Content

[0005] The purpose of this invention is to provide a stone crushing tool with reduced energy loss, aiming to solve the problem of insufficient structural strength and easy damage of existing stone crushing tools.

[0006] This utility model is implemented as follows: a stone crushing tool with reduced energy loss includes an inner tube and an outer tube. The inner tube and the outer tube are movably assembled. The outer tube is fitted onto the inner tube, and the inner tube is driven to slide relative to the outer tube to perform stone crushing operations. The inner tube includes an inner tube body and multiple inner ribs. Each inner rib is arranged at intervals along the circumference of the inner tube body. The inner ribs are elongated and extend in a radial direction away from the inner tube body. The outer tube has an inner support ring that protrudes towards the inner tube and provides radial support for the inner tube.

[0007] Furthermore, the inner support ring is arranged in a ring shape, and the inner support ring surrounds each of the inner ribs.

[0008] Furthermore, the inner support ring has an inner ring surface, which is arranged in an arc shape facing the inner tube, and the inner ring surface surrounds each of the inner ribs.

[0009] Furthermore, the outer tube has a plurality of inner support rings, and each inner support ring is arranged at intervals along the axial direction of the outer tube.

[0010] Furthermore, the cross-section of the inner reinforcing bars is arranged in a rectangular shape.

[0011] Furthermore, each of the inner ribs is integrally formed with the inner tube body.

[0012] Furthermore, the inner tube is hollow, and an inner cavity is formed inside the inner tube, which is used for sucking in and discharging gravel.

[0013] Furthermore, the inner rib has two side rib surfaces, which are arranged opposite each other on both sides. Along the direction toward the inner tube, the two side rib surfaces extend obliquely in opposite directions.

[0014] Furthermore, a rib gap is formed between the two inner ribs, and the cross-section of the rib gap is arranged in a trapezoidal shape.

[0015] Furthermore, the plurality of inner reinforcing bars are arranged in an even number, and each of the inner reinforcing bars is arranged symmetrically in pairs.

[0016] Compared with existing technologies, the energy-reducing stone crushing tool provided by this utility model works by the inner tube sliding relative to the outer tube axially under the driving force until the stone crushing operation is completed. Under the action of the inner support ring, the inner tube is provided with radial support, and with the help of various reinforcing ribs, it provides axial support, making the overall structure formed by the inner and outer tubes stronger and less prone to damage. At the same time, the contact between the inner and outer tubes changes from surface contact to point-line contact, reducing the contact area between the outer and inner tubes. The stone crushing tool has less energy loss and less heat generation during operation, thereby increasing work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the energy-reducing stone crushing tool provided by this utility model; Figure 2 This is a radial cross-sectional schematic diagram of the energy-reducing stone crushing tool provided by this utility model; Figure 3 This is an enlarged schematic diagram of part A of the energy-reducing stone crushing tool provided by this utility model; Figure 4 This is an axial cross-sectional schematic diagram of the energy-reducing stone crushing tool provided by this utility model; Figure 5 This is an enlarged schematic diagram of part B of the energy-reducing stone crushing tool provided by this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Reference Figure 1-5 The image shown is a preferred embodiment of the present invention.

[0022] The energy-reducing stone crushing blade includes an inner tube 1 and an outer tube 2. The inner tube 1 and the outer tube 2 are movably assembled. The outer tube 2 is fitted with the inner tube 1. The inner tube 1 is driven to slide relative to the outer tube 2 to perform stone crushing operations. The inner tube 1 includes an inner tube body 11 and a plurality of inner ribs 12. Each inner rib 12 is arranged at intervals along the circumference of the inner tube body 11. The inner ribs 12 are elongated and extend in a radial direction away from the inner tube body 11. The outer tube 2 has an inner support ring 21, which is arranged to protrude towards the inner tube 1. The inner support ring 21 is used to provide radial support for the inner tube 1.

[0023] The aforementioned energy-reducing stone crushing cutter operates by the inner tube 1 sliding relative to the outer tube 2 axially under driving force until the stone crushing operation is completed. Under the action of the inner support ring 21, radial support is provided for the inner tube 1, and axial support is provided by various reinforcing ribs, making the overall structure formed by the inner tube 1 and the outer tube 2 stronger and less prone to damage. At the same time, the contact between the inner tube 1 and the outer tube 2 changes from surface contact to point-line contact, reducing the contact area between the outer tube 2 and the inner tube 1. The stone crushing cutter has low energy loss and low heat generation during operation, thereby increasing work efficiency.

[0024] The inner support ring 21 is arranged in a ring shape and surrounds each inner rib 12, so that the inner rib 12 is subjected to more uniform axial force during sliding, reducing radial offset, thereby reducing vibration and friction loss; improving the cooperation between the inner support ring 21 and each inner rib 12, improving the radial support effect of the inner support ring 21, effectively reducing the radial offset space of the inner tube 1, and ensuring the sliding accuracy of the inner tube 1.

[0025] The inner diameter surface of the inner support ring 21 and the outer end face of the inner rib 12 maintain a small gap 13 to ensure smooth relative movement.

[0026] The inner support ring 21 has an inner ring surface, which is arranged in an arc shape facing the inner tube 1, and the inner ring surface surrounds each inner rib 12. This reduces the contact area between the outer tube 2 and the inner tube 1, resulting in less energy loss and less heat generation when the stone crusher is working, which helps to increase work efficiency.

[0027] The outer tube 2 has multiple inner support rings 21, and each inner support ring 21 is arranged at intervals along the axial direction of the outer tube 2. Under the cooperative action of each inner support ring 21, the inner tube 11 is radially supported at multiple positions along the axial direction, thereby improving the sliding stability of the inner tube 1.

[0028] The inner reinforcing bars 12 have a rectangular cross-section, which improves their stability and service life.

[0029] Each inner rib 12 is integrally formed with the inner tube body 11, which reduces production costs and facilitates the assembly between the inner tube 1 and the outer tube 2.

[0030] The inner pipe fitting 1 is hollow, and the interior of the inner pipe fitting 1 forms an inner cavity, which is used to suck in and discharge crushed stone; thus facilitating the discharge of crushed stone.

[0031] The inner rib 12 has two side rib surfaces, which are arranged on both sides in a corresponding manner. Along the direction towards the inner tube 11, the two side rib surfaces are arranged in an inclined manner in the opposite direction; this improves the overall structural strength of the inner tube 1 and makes the inner tube 1 less prone to damage.

[0032] A rib gap 13 is formed between the two inner ribs 12, and the cross section of the rib gap 13 is arranged in a trapezoidal shape; this improves the overall structural strength of the inner tube 1 and makes the inner tube 1 less prone to damage.

[0033] Multiple internal ribs are arranged in an even number, and each internal rib is arranged symmetrically in pairs; this makes the force on the inner tube 1 more uniform and the movement more stable. At the same time, it facilitates the uniformity of the restriction of the inner tube 1 by the inner support ring 21, and ensures the accuracy of the movement of the inner tube 1.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stone crushing tool with reduced energy loss, characterized in that, The device includes an inner pipe and an outer pipe, which are movably assembled together. The outer pipe is fitted onto the inner pipe, and the inner pipe is driven to slide relative to the outer pipe for crushing operations. The inner pipe includes an inner pipe body and multiple inner ribs, which are arranged at intervals along the circumference of the inner pipe body. The inner ribs are elongated and protrude radially away from the inner pipe body. The outer pipe has an inner support ring that protrudes towards the inner pipe and provides radial support for the inner pipe.

2. The energy-reducing rock-crushing tool as described in claim 1, characterized in that, The inner support ring is arranged in a ring shape and surrounds each of the inner ribs.

3. The energy-reducing rock-crushing tool as described in claim 1, characterized in that, The inner support ring has an inner ring surface, which is arranged in an arc shape facing the inner tube, and the inner ring surface surrounds each of the inner ribs.

4. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, The outer tube has multiple inner support rings, and each inner support ring is arranged at intervals along the axial direction of the outer tube.

5. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, The cross-section of the inner reinforcing bars is arranged in a rectangular shape.

6. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, Each of the inner ribs is integrally formed with the inner tube body.

7. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, The inner tube is hollow and forms an inner cavity inside, which is used to suck in and discharge gravel.

8. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, The inner rib has two side rib surfaces, which are arranged on opposite sides. Along the direction toward the inner tube, the two side rib surfaces extend obliquely in opposite directions.

9. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, A rib gap is formed between the two inner ribs, and the cross-section of the rib gap is arranged in a trapezoidal shape.

10. The energy-reducing rock-crushing tool as described in any one of claims 1-3, characterized in that, The number of internal reinforcing bars is even, and each of the internal reinforcing bars is arranged symmetrically in pairs.

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