Device for testing radial supporting force of mesh basket

Abstract

The utility model belongs to the technical field of net basket testing, and particularly relates to a net basket radial supporting force testing device which comprises a testing module, a transmission module and a pressure sensor, the testing module comprises two bases arranged in parallel, and a plurality of two-connecting rods arranged in an annular array are hinged between the two bases. The two connecting rods comprise two rotating rods hinged end to end through a rotating shaft, the rotating shaft is in threaded connection with a locking head, the transmission module is used for driving the pressure sensor to ascend and descend, the detection end of the pressure sensor is located over the base, and the transmission module comprises a motor, a coupler, a sliding block, a screw rod and the pressure sensor; a supporting column is fixed to the bottom of the top plate, a supporting seat is fixed to the bottom of the supporting column, a motor is fixedly connected with a screw through a coupler, a sliding block is assembled on the screw in a threaded mode, and a connecting piece is fixed to the sliding block. The device is used for testing the radial supporting force of the calculus removing net basket, and has the characteristics of automation, adjustability, improvement of experiment efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of net basket test, concretely to a net basket radial support force testing device. BACKGROUND

[0002] In the medical field, the stone basket is an important instrument for urinary system stone removal operation. Its radial support force plays a key role in the effectiveness and safety of the operation. During the operation, the stone basket needs to be deployed in the body and maintain a certain radial support force to smoothly grasp the stone and take it out. If the radial support force is insufficient, it may lead to stone failure or falling, and if the support force is too large, it may cause unnecessary damage to the human body tissue.

[0003] According to patent number CN202020689570.7, a four-wire net basket structure is disclosed, including a net basket root at the rear end, four main net wires are distributed forwardly from the front end of the net basket root, and each main net wire is forked to form two sub-net wires at the front end; eight sub-net wires converge at the top of the net basket structure, and the front ends of the adjacent sub-net wires from different main net wires are connected through an arc transition section, and four groups of sub-net wire front ends correspond to form four arc transition sections to splice to form the top of the net basket structure; the middle part of the four main net wires is raised outward, the rear end is tightened to the net basket root, and the front end is formed into a spherical net top through the arc transition section.

[0004] The prior art has the following problems:

[0005] The traditional test method for the radial support force of the stone basket often relies on simple manual operation and simple measuring tools, for example, by manually applying a certain force to the net basket, and then using ordinary spring dynamometers and other tools to roughly measure the stress condition. Manual operation is difficult to accurately control the size, direction and speed of the force, resulting in poor accuracy and repeatability of the test results, low efficiency of the test process, and a large amount of manpower and time is consumed. Therefore, the utility model provides a net basket radial support force testing device. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a net basket radial support force testing device to solve the existing problems.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A kind of net basket radial support force testing device, including test module, transmission module and pressure sensor, the test module includes two parallelly arranged bases, a plurality of ring array two connecting rods are hinged between two bases, the two connecting rods include two head-to-tail hinged rotating rods by pivot, locking head is threadedly connected on the pivot, the transmission module is used to drive pressure sensor to lift, the detection end of the pressure sensor is located directly above the base.

[0009] As a preferred technical scheme of the utility model, the transmission module includes motor, shaft coupling, sliding block, screw rod and pressure sensor, the motor is fixed on the top plate, the bottom of the top plate is fixed with support column, the bottom of the support column is fixed with support seat, the motor is fixedly connected with screw rod by shaft coupling, the sliding block is threadedly assembled on the screw rod, the sliding block is fixed with connecting piece, the pressure sensor is fixed on the connecting piece.

[0010] As a preferred technical scheme of the utility model, further include control module, the control module is fixed on the top plate.

[0011] As a preferred technical scheme of the utility model, further include display module, the display module is fixed on the top plate.

[0012] As a preferred technical scheme of the utility model, the base is fixed with stand column, the stand column is hinged with the rotating rod.

[0013] As a preferred technical scheme of the utility model, the control module includes control button and solid state relay, the control button includes up, down and stop button, the control button, solid state relay and motor are connected in series.

[0014] As a preferred technical scheme of the utility model, the number of two connecting rods is four, four locking heads are used to clamp four silk stone basket.

[0015] As a preferred technical scheme of the utility model, the display module includes display screen, and the display screen is electrically connected with pressure sensor.

[0016] Compared with the prior art, the utility model provides a kind of net basket radial support force testing device, with following beneficial effects:

[0017] 1. The radial support force testing device for the basket, by setting the test module, control module, display module and transmission module, for testing the radial support force of the stone basket, with the characteristics of automation, adjustable, improve the efficiency of the experiment, etc. Assemble the basket in the test module and fix it. Rotate and press down by operating the control module to drive the transmission module. When the pressure sensor at the top of the test module is contacted, the test module will deform the basket. At the same time, the specific parameters of the radial support force will be shown on the screen in the display module. The test results can be more intuitively displayed.

[0018] 2. The radial support force testing device for the basket, which is designed and improved based on the testing method of the radial support force of the bracket. The radial support force testing method mainly installs the bracket on the device, then pressurizes to get the deformation and support force result. The motor drives the screw rod to make the downward force more uniform, and can apply support force to the basket in the direction of two shafts. This can get more comprehensive support force results of the basket, and the overall operation is more automated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Fig. 2 It is a structure schematic diagram of the transmission module in the utility model;

[0021] Fig. 3 It is a structure schematic diagram of the stand, rotating rod, locking head and base in the utility model.

[0022] In the figure: 1, test module; 2, control module; 3, display module; 4, transmission module; 5, stand; 6, rotating rod; 7, locking head; 8, base; 9, motor; 10, shaft coupling; 11, sliding block; 12, screw rod; 13, pressure sensor; 14, support seat; 15, support column; 16, top plate; 17, connecting piece. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figs. 1-3In the embodiment, the device for testing radial support force of a basket includes a testing module 1, a transmission module 4 and a pressure sensor 13. The testing module 1 is used for clamping and testing the basket. The testing module 1 includes two parallel bases 8. A plurality of two-link rods in annular array are hingedly connected between the two bases 8. Each two-link rod includes two rotating rods 6 hingedly connected at the ends thereof by a rotating shaft. A locking head 7 is threadedly connected to the rotating shaft. The transmission module 4 is used for driving the pressure sensor 13 to move up and down. The detection end of the pressure sensor 13 is located directly above the base 8.

[0025] In the embodiment, the transmission module 4 includes a motor 9, a shaft coupling 10, a sliding block 11, a screw rod 12 and the pressure sensor 13. The motor 9 is fixed to a top plate 16. A support column 15 is fixed to the bottom of the top plate 16. A support base 14 is fixed to the bottom of the support column 15. The motor 9 is fixedly connected to the screw rod 12 through the shaft coupling 10. The sliding block 11 is threadedly assembled on the screw rod 12. A connecting piece 17 is fixed to the sliding block 11. The pressure sensor 13 is fixed to the connecting piece 17. The motor 9 is controlled to rotate forward or reversely by the control module 2. At the same time, the shaft coupling 10 rotates together. The sliding block 11 is assembled on the screw rod 12. When the screw rod rotates, the sliding block 11 slides upward or downward. The pressure sensor 13 is assembled below the sliding block 11. When the sliding block 11 drives the testing module 1 to press downward, the result is displayed on the display module 3. It is worth noting that a guide block is arranged on the sliding block 11. A guide rail is arranged on the support column 15. The guide block is slidably arranged on the guide rail to limit the position.

[0026] In the embodiment, the display module 3 is fixed to the top plate 16. The display module 3 displays and records the maximum support force obtained in the test.

[0027] In the embodiment, the base 8 is fixed with a vertical column 5. The vertical column 5 is hingedly connected to the rotating rod 6. The vertical column 5 is used for connecting the base 8 and transmitting force. The locking head 7 is used for fixing the upper and lower rotating rods and clamping the basket sample in the middle of the rotating rod. When the base 8 is subjected to pressure, the vertical column 5 is connected to the rotating rod 6 and rotates relatively.

[0028] In the embodiment, the control module 2 includes control buttons and solid-state relays. The control buttons include up, down and stop buttons. The control buttons and the solid-state relays are connected in series with the motor 9. The solid-state relays protect the device when the buttons lose control.

[0029] In the embodiment, the number of two-link rods is four. The four locking heads 7 are used for clamping the four-wire basket.

[0030] In the embodiment, the display module 3 includes a display screen. The display screen is electrically connected to the pressure sensor 13. The specific parameters of the radial support force are displayed on the screen of the display module. The test result can be more intuitively displayed.

[0031] The working principle and use process of the utility model: in use, first, the net basket sample is placed in the test module 1, and the column 5, rotating rod 6 and locking head 7 of test module 1 are used to assemble and fix, so that the net basket is in the state of waiting for testing, when operating control module 2, by pressing the control button (up, down or stop), the control button is linked with transmission module 4, if the up button is pressed, control module 2 sends signal to the motor 9 of transmission module 4, the motor 9 rotates forward, the power of motor 9 is transmitted to screw rod 12 through coupling 10, the rotation of screw rod 12 makes the sliding block 11 assembled on it slide upwards, thereby driving the test module 1 connected with sliding block 11 to rise, if the down button is pressed, the motor reverses, screw rod 12 drives sliding block 11 to slide downwards, test module 1 falls with it, pressure sensor 13 is assembled below sliding block 11, when sliding block 11 drives test module 1 to press down, the pressure sensor 13 at the top of test module 1 starts to work, with the pressing down of test module 1, the net basket is extruded to produce deformation, pressure sensor 13 monitors the pressure data in real time, when the pressure reaches the maximum value, the maximum supporting force data is transmitted to display module 3, display module 3 displays and records the maximum supporting force obtained in the test, so that the operator can check and analyze.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A basket radial support force testing device comprising a testing module (1), a transmission module (4) and a pressure sensor (13), characterized in that: The test module (1) comprises two parallel arranged bases (8), a plurality of annular arrays of two connecting rods are hinged between the two bases (8), the two connecting rods comprise two rotating rods (6) hingedly connected by a rotating shaft, a locking head (7) is threadedly connected on the rotating shaft, the transmission module (4) is used for driving the pressure sensor (13) to ascend and descend, and a detection end of the pressure sensor (13) is located directly above the base (8).

2. The radial support force testing device of claim 1, wherein: The transmission module (4) comprises a motor (9), a shaft coupling (10), a sliding block (11), a screw rod (12) and a pressure sensor (13), the motor (9) is fixed on a top plate (16), a supporting column (15) is fixed at the bottom of the top plate (16), a supporting seat (14) is fixed at the bottom of the supporting column (15), the motor (9) is fixedly connected with the screw rod (12) through the shaft coupling (10), the sliding block (11) is threadedly assembled on the screw rod (12), a connecting piece (17) is fixed on the sliding block (11), and the pressure sensor (13) is fixed on the connecting piece (17).

3. The radial support force testing device of claim 2, wherein: A control module (2) is further arranged, and the control module (2) is fixed on the top plate (16).

4. The radial support force testing device of claim 1, wherein: A display module (3) is further arranged, and the display module (3) is fixed on the top plate (16).

5. The radial support force testing device of claim 1, wherein: A stand column (5) is fixed on the base (8), and the stand column (5) is hingedly connected with the rotating rod (6).

6. The radial support force testing device of claim 3, wherein: The control module (2) comprises control buttons and solid-state relays, the control buttons comprise up, down and stop buttons, and the control buttons and the solid-state relays are connected with the motor (9) in series.

7. The radial support force testing device of claim 1, wherein: The number of the two connecting rods is four, and the four locking heads (7) are used for clamping four wire stone extraction net baskets.

8. The radial support force testing device of claim 4, wherein: The display module (3) comprises a display screen, and the display screen is electrically connected with the pressure sensor (13).

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