Pressure testing device for negative pressure drainage tube

Abstract

The invention discloses a pressure testing device for a negative pressure drainage tube, and relates to the technical field of pressure testing. The pressure testing device for the negative pressure drainage tube comprises a base, the top of the base is fixedly connected with a control device, the right side of the base is fixedly connected with a bearing seat, the left side of the base is fixedly connected with a mounting seat, the inner wall of the bearing seat is rotatably connected with a main shaft, and the outer wall of the main shaft is fixedly connected with an extrusion mechanism. According to the pressure testing device for the negative pressure drainage tube, the arc-shaped inner wall of the arc-shaped block is matched with the arc-shaped outer wall of the elliptical block, so that an air bag of the negative pressure drainage tube is fully extruded, the air bag of the negative pressure drainage tube is bulged to suck a barometer, and the pressure degree displayed by suction is displayed on the barometer; therefore, the suction force generated by the negative pressure drainage tube can be effectively measured, and the barometer is electrically connected with the control device.

Description

Technical Field

[0001] The invention relates to the technical field of pressure testing, and in particular to a pressure testing device for a negative pressure drainage tube. Background Art

[0002] The core components of negative pressure drainage technology are the negative pressure generator and the negative pressure drainage tube. The negative pressure drainage tube is connected to the negative pressure generator. The negative pressure generator is started to guide the liquid in the wound to the outside of the body with the help of the negative pressure drainage tube. The negative pressure drainage tube must be able to withstand a certain pressure, otherwise it will deform under negative pressure and affect the negative pressure drainage.

[0003] Citing the Chinese publication number CN216524513U, the patent discloses a pressure test device for a negative pressure drainage tube, including a vacuum chamber for forming a vacuum environment therein, a vacuum gauge for detecting the internal vacuum degree of the vacuum chamber, a vacuum pump for evacuating the interior of the vacuum chamber, and a plurality of negative pressure drainage tube interfaces for connecting the two ends of the negative pressure drainage tube to the interior of the vacuum chamber, the vacuum gauge is arranged outside the vacuum chamber and connected to the interior of the vacuum chamber, the vacuum pump is arranged outside the vacuum chamber and connected to the interior of the vacuum chamber, and the negative pressure drainage tube interface is arranged outside the vacuum chamber and connected to the interior of the vacuum chamber through a stop valve;

[0004] During the manufacturing process of the negative pressure drainage tube, there may be problems with materials or installation. Holes and gaps on the negative pressure drainage tube may render the negative pressure drainage tube unusable, so testing is required after production. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a pressure testing device for a negative pressure drainage tube to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure testing device for a negative pressure drainage tube, comprising a base, a control device is fixedly connected to the top of the base, a bearing seat is fixedly connected to the right side of the base, a mounting seat is fixedly connected to the left side of the base, a main shaft is rotatably connected to the inner wall of the bearing seat, and an extrusion mechanism is fixedly connected to the outer wall of the main shaft;

[0007] The extrusion mechanism comprises:

[0008] A mounting bracket, the mounting bracket is fixedly connected to the outer wall of the main shaft, and a limiting hole is provided on the outer wall of the mounting bracket;

[0009] The arc block is fixedly connected to the top of the mounting bracket. The arc-shaped inner wall of the arc block is arranged in coordination with the arc-shaped outer wall of the elliptical block, so that the airbag of the negative pressure drainage tube is fully squeezed. The airbag of the negative pressure drainage tube is inflated to suck the pressure gauge, and the pressure degree displayed by the suction is displayed on the pressure gauge, thereby effectively measuring the suction force that the negative pressure drainage tube can generate. Moreover, the pressure gauge is electrically connected to the control device, and the data measured by the pressure gauge can be transmitted to the control device, ensuring that the negative pressure drainage tube is tested while facilitating the recording and observation of the measured data;

[0010] The telescopic machine is fixedly connected to the bottom of the mounting bracket, and the top of the telescopic machine is movably connected to an elliptical block.

[0011] Preferably, a pressure gauge is fixedly connected to the outer wall of the main shaft. The setting of the pressure gauge can effectively test the suction force of the negative pressure drainage tube, and then cooperate with the simulation of the human body to simulate the human body's possible turning around and coughing during the test, thereby improving the diversity of the test environment and ensuring the effective testing of the negative pressure drainage tube. The top of the pressure gauge is fixedly connected to a rubber port, which is made of rubber material. The negative pressure drainage tube is also attached to the rubber port by tape. The rubber port is similar to human skin, thereby enhancing the simulation test environment. The setting of the rubber material of the rubber port can simulate human skin and improve the detection effect.

[0012] Preferably, a steering detection mechanism is fixedly connected to the outer wall of the base, and the steering detection mechanism includes a connecting bracket, and the connecting bracket is fixedly connected to the right side of the base.

[0013] Preferably, the outer wall of the connecting bracket is fixedly connected to a motor, and the counterclockwise rotation and clockwise rotation of the motor can drive the main shaft to rotate, and then drive the main shaft to rotate clockwise and counterclockwise. When the main shaft rotates, it will drive the rotation of the barometer. The rotation of the barometer by a certain angle simulates the activity of the human body during the measurement of the human body, and tests the adhesion between the negative pressure drainage tube and the rubber mouth. If the negative pressure drainage tube tilts and falls off the rubber mouth, the negative pressure drainage tube cannot suck the barometer. At this time, the barometer reading is zero, and the barometer reading will be transmitted to the control device, ensuring the timely transmission of data. The rotation of the main shaft will also drive the steering needle to rotate accordingly. The skewness of the steering needle will squeeze the angle detection device, and then the skew angle of the steering needle will be monitored, so that the angle at which the negative pressure drainage tube can be skewed can be effectively measured and recorded. The motor is fixedly connected to the main shaft through a rotating shaft, and the angle at which the motor drives the main shaft to rotate is 20 to -20 degrees.

[0014] Preferably, a limit bearing is fixedly connected to the right side of the base, and a belt is sleeved on the outer wall of the limit bearing and the outer wall of the main shaft.

[0015] Preferably, a steering needle is rotatably connected to the outer wall of the limit bearing, an angle detection device is fixedly connected to the outer wall of the limit bearing, and the steering needle is in active contact with the angle detection device.

[0016] Preferably, a vibration detection mechanism is fixedly connected to the top of the bearing seat, and the vibration detection mechanism comprises a spring, and the spring is fixedly connected to the top of the bearing seat.

[0017] Preferably, a fixing block is fixedly connected to the top of the spring, and a toggle rod is fixedly connected to the outer wall of the fixing block.

[0018] Preferably, a raised plate is fixedly connected to the outer wall of the main shaft adjacent to the toggle rod, and the kinetic energy generated by the intermittent counterclockwise and clockwise rotation of the main shaft is used to drive the rotation of the raised plate. When rotating, the raised plate collides with the toggle rod to drive the vibration of the raised plate, which is then transmitted to the rubber port and the negative pressure drainage tube through the main shaft, simulating the coughing and small-amplitude activities of the human body in reality, so as to test the measurement effect of the negative pressure drainage tube in the face of this situation. The vibration scale monitors the vibration of the vibration disk through vibration detection, and then the vibration amplitude will be transmitted to the vibration scale for display, and then the vibration scale transmits the detected vibration amplitude to the control device, which can effectively monitor the vibration amplitude and then record it. The raised plate is in active contact with the toggle rod.

[0019] Preferably, a vibration disk is fixedly connected to the outer wall of the main shaft, a vibration scale is fixedly connected to the top of the mounting seat, a vibration detection needle is movably connected to the outer wall of the vibration scale, and the vibration detection needle is in movably contact with the vibration disk.

[0020] The present invention provides a pressure testing device for a negative pressure drainage tube. It has the following beneficial effects:

[0021] 1. The pressure testing device for the negative pressure drainage tube, through the setting of the arc-shaped inner wall of the arc block and the setting of the arc-shaped outer wall of the elliptical block, can fully squeeze the airbag of the negative pressure drainage tube. The airbag of the negative pressure drainage tube inflates to suck the pressure gauge, and the pressure degree displayed by the suction is displayed on the pressure gauge, thereby effectively measuring the suction force that the negative pressure drainage tube can generate. Moreover, the pressure gauge is electrically connected to the control device, and the data measured by the pressure gauge can be transmitted to the control device, ensuring that the negative pressure drainage tube is tested while facilitating the recording and observation of the measured data.

[0022] 2. The pressure testing device for the negative pressure drainage tube can drive the main shaft to rotate through the counterclockwise rotation and clockwise rotation of the motor, which will then drive the main shaft to rotate clockwise and counterclockwise in a cycle. When the main shaft rotates, it will drive the rotation of the barometer. The rotation of the barometer by a certain angle simulates the movement of the human body during the measurement of the human body, and tests the adhesion between the negative pressure drainage tube and the rubber mouth. If the negative pressure drainage tube tilts and falls off the rubber mouth, the negative pressure drainage tube cannot suck the barometer. At this time, the barometer reading is zero. The barometer reading will be transmitted to the control device, ensuring the timely transmission of data. The rotation of the main shaft will also drive the steering needle to rotate. The tilt of the steering needle will squeeze the angle detection device, and then the tilt angle of the steering needle will be monitored, so that the tilt angle of the negative pressure drainage tube can be effectively measured and recorded.

[0023] 3. The pressure testing device for the negative pressure drainage tube utilizes the kinetic energy generated by the intermittent counterclockwise and clockwise rotation of the main shaft to drive the rotation of the raised plate. When the raised plate rotates, it collides with the toggle rod to drive the vibration of the raised plate, which is then transmitted to the rubber port and the negative pressure drainage tube through the main shaft, simulating the coughing and small-amplitude activities of the human body in reality, so as to test the measurement effect of the negative pressure drainage tube when facing this situation. The vibration scale monitors the vibration of the vibration disk through vibration detection, and then the vibration amplitude will be transmitted to the vibration scale for display, and then the vibration scale transmits the detected vibration amplitude to the control device, which can effectively monitor the vibration amplitude and then record it.

[0024] 4. The pressure testing device for the negative pressure drainage tube is made of rubber material through a rubber mouth, and the negative pressure drainage tube is attached to the rubber mouth by adhesive tape. The rubber mouth is similar to human skin, thereby enhancing the simulated test environment. The setting of the rubber material of the rubber mouth simulates human skin and improves the detection effect.

[0025] 5. The pressure testing device for the negative pressure drainage tube effectively tests the suction force of the negative pressure drainage tube by setting the barometer, and then simulates the human body to simulate that the human body may turn around and cough during the test, thereby improving the diversity of the test environment and ensuring the effective test of the negative pressure drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the axial side stereoscopic structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the local structure of the extrusion mechanism of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the negative pressure drainage tube of the present invention;

[0029] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0030] Figure 5 It is a schematic diagram of the left three-dimensional structure of the present invention;

[0031] Figure 6 For the present invention Figure 5 The enlarged structural diagram of the middle B part;

[0032] Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0033] Figure 8 It is a schematic diagram of the local structure of the vibration detection needle of the present invention.

[0034] In the figure: 1. base; 2. control device; 3. main shaft; 4. bearing seat; 5. mounting seat; 6. extrusion mechanism; 61. arc block; 62. elliptical block; 63. limit hole; 64. mounting bracket; 65. telescopic machine; 7. vibration detection mechanism; 71. vibration scale; 72. vibration plate; 73. vibration detection needle; 74. fixing block; 75. spring; 76. toggle rod; 77. raised plate; 8. steering detection mechanism; 81. belt; 82. steering needle; 83. angle detection device; 84. limit bearing; 85. motor; 86. connecting bracket; 9. barometer; 10. rubber mouth. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Embodiment 1

[0038] See also Figure 1-3 The present invention provides a technical solution: a pressure testing device for a negative pressure drainage tube, comprising a base 1, a control device 2 is fixedly connected to the top of the base 1, a bearing seat 4 is fixedly connected to the right side of the base 1, a mounting seat 5 is fixedly connected to the left side of the base 1, a main shaft 3 is rotatably connected to the inner wall of the bearing seat 4, and an extrusion mechanism 6 is fixedly connected to the outer wall of the main shaft 3;

[0039] The extrusion mechanism 6 comprises:

[0040] A mounting bracket 64, the mounting bracket 64 is fixedly connected to the outer wall of the main shaft 3, and a limiting hole 63 is provided on the outer wall of the mounting bracket 64;

[0041] The arc block 61 is fixedly connected to the top of the mounting bracket 64. The arc-shaped inner wall of the arc block 61 is arranged in coordination with the arc-shaped outer wall of the elliptical block 62, so that the airbag of the negative pressure drainage tube is fully squeezed. The airbag of the negative pressure drainage tube is inflated to suction the barometer 9, and the pressure displayed by the suction is displayed on the barometer 9, thereby effectively measuring the suction force that the negative pressure drainage tube can generate. Moreover, the barometer 9 is electrically connected to the control device 2, and the data measured by the barometer 9 can be transmitted to the control device 2, ensuring that the negative pressure drainage tube is tested while facilitating the recording and observation of the measured data;

[0042] The telescopic machine 65 is fixedly connected to the bottom of the mounting bracket 64, and the top of the telescopic machine 65 is movably connected to the elliptical block 62;

[0043] A barometer 9 is fixedly connected to the outer wall of the main shaft 3 , and a rubber port 10 is fixedly connected to the top of the barometer 9 .

[0044] When in use, the control device 2 can control the start of each device, place the airbag part of the negative pressure drainage tube between the arc block 61 and the elliptical block 62, the negative pressure drainage tube is inserted into the limiting hole 63, and the suction end of the negative pressure drainage tube is inserted into the rubber port 10. The rubber port 10 is made of rubber material, and the negative pressure drainage tube is attached to the rubber port 10 by tape. The rubber port 10 is similar to human skin, thereby enhancing the simulated test environment. The telescopic machine 65 is powered on and started to drive the elliptical block 62 to rise. The arc-shaped inner wall of the arc block 61 is matched with the arc-shaped outer wall of the elliptical block 62, so the airbag position of the negative pressure drainage tube is squeezed, and then the elliptical block 62 descends. At this time, the bulging of the airbag of the negative pressure drainage tube will suction the barometer 9, and the pressure degree displayed by the suction is displayed on the barometer 9.

[0045] Embodiment 2

[0046] See also Figure 1-6 Based on the first embodiment, the present invention provides a technical solution:

[0047] A steering detection mechanism 8 is fixedly connected to the outer wall of the base 1 . The steering detection mechanism 8 includes a connecting bracket 86 . The connecting bracket 86 is fixedly connected to the right side of the base 1 .

[0048] The outer wall of the connecting bracket 86 is fixedly connected with a motor 85. The counterclockwise and clockwise rotations of the motor 85 can drive the main shaft 3 to rotate, and then drive the main shaft 3 to rotate clockwise and counterclockwise. When the main shaft 3 rotates, it will drive the rotation of the barometer 9. The rotation of the barometer 9 at a certain angle simulates the movement of the human body during the measurement of the human body, and tests the adhesion between the negative pressure drainage tube and the rubber mouth 10. If the negative pressure drainage tube falls off the rubber mouth 10 at an angle, the negative pressure drainage tube cannot suck the barometer 9. At this time, the reading of the barometer 9 is zero, and the reading of the barometer 9 will be transmitted to the control device 2, ensuring the timely transmission of data. The rotation of the main shaft 3 will also drive the steering needle 82 to rotate. The deflection of the steering needle 82 will squeeze the angle detection device 83, and then the deflection angle of the steering needle 82 will be monitored, so that the deflection angle of the negative pressure drainage tube can be effectively measured and recorded. The motor 85 is fixedly connected to the main shaft 3 through the rotating shaft, and the angle of rotation of the main shaft 3 driven by the motor 85 is 20 to -20 degrees.

[0049] The right side of the base 1 is fixedly connected to a limit bearing 84, and the motor 85 is powered on and started. The counterclockwise and clockwise rotations of the motor 85 can drive the main shaft 3 to rotate. When the main shaft 3 rotates, it will drive the rotation of the pressure gauge 9, and then test the adhesion between the negative pressure drainage tube and the rubber mouth 10. When the main shaft 3 is skewed to a certain angle, the negative pressure drainage tube will tilt and fall off the rubber mouth 10, and the negative pressure drainage tube cannot suction the pressure gauge 9. At this time, the degree of the pressure gauge 9 is zero, and the degree of the pressure gauge 9 will be transmitted to the control device 2. At this time, the rotation of the main shaft 3 will also drive the steering needle 82 to rotate. The skewness of the steering needle 82 will squeeze the angle detection device 83, and then monitor the skew angle of the steering needle 82, and then transmit it to the control device 2. The outer wall of the limit bearing 84 and the outer wall of the main shaft 3 are sleeved with a belt 81.

[0050] The outer wall of the limit bearing 84 is rotatably connected with a steering needle 82 , and the outer wall of the limit bearing 84 is fixedly connected with an angle detection device 83 , and the steering needle 82 is in active contact with the angle detection device 83 .

[0051] When in use, the motor 85 is powered on and started. The counterclockwise rotation and clockwise rotation of the motor 85 can drive the main shaft 3 to rotate. When the main shaft 3 rotates, it will drive the rotation of the pressure gauge 9, thereby testing the adhesion between the negative pressure drainage tube and the rubber mouth 10. When the main shaft 3 is skewed to a certain angle, the negative pressure drainage tube will tilt and fall off the rubber mouth 10, and the negative pressure drainage tube will not be able to suction the pressure gauge 9. At this time, the degree of the pressure gauge 9 is zero, and the degree of the pressure gauge 9 will be transmitted to the control device 2. At this time, the rotation of the main shaft 3 will also drive the steering needle 82 to rotate. The skewness of the steering needle 82 will squeeze the angle detection device 83, thereby monitoring the skew angle of the steering needle 82 and then transmitting it to the control device 2.

[0052] Embodiment 3

[0053] See also Figure 1-8 Based on the first and second embodiments, the present invention provides a technical solution:

[0054] The top of the bearing seat 4 is fixedly connected with a vibration detection mechanism 7 , which includes a spring 75 , and the spring 75 is fixedly connected to the top of the bearing seat 4 .

[0055] The top of the spring 75 is fixedly connected to a fixing block 74 , and the outer wall of the fixing block 74 is fixedly connected to a toggle rod 76 .

[0056] A protruding plate 77 is fixedly connected to the outer wall of the main shaft 3 adjacent to the toggle rod 76 , and the protruding plate 77 is in movable contact with the toggle rod 76 .

[0057] A vibration plate 72 is fixedly connected to the outer wall of the main shaft 3 , a vibration scale 71 is fixedly connected to the top of the mounting seat 5 , a vibration detection needle 73 is movably connected to the outer wall of the vibration scale 71 , and the vibration detection needle 73 is in movably contact with the vibration plate 72 .

[0058] When in use, during the intermittent counterclockwise and clockwise rotation of the main shaft 3, the raised plate 77 will be driven to rotate. The raised plate 77 will collide with the toggle rod 76 during rotation. The toggle rod 76 is fixed to the bearing seat 4 through the fixing block 74 and the spring 75. During the mutual toggle movement between the raised plate 77 and the toggle rod 76, the raised plate 77 will be driven to vibrate, and then transmitted to the rubber port 10 and the negative pressure drainage tube through the main shaft 3, simulating the activities of the human body in the real process. The vibration of the main shaft 3 is transmitted through the vibration disk 72, and then the vibration scale 71 monitors the vibration of the vibration disk 72 through the vibration detection needle 73, and then the vibration amplitude will be transmitted to the vibration scale 71 for display, and then the vibration scale 71 transmits the detected vibration amplitude to the control device 2.

[0059] Embodiment 4

[0060] See also Figure 1-8 Based on the first, second and third embodiments, the present invention provides a technical solution:

[0061] A pressure testing system for a negative pressure drainage tube comprises a base 1, a control device 2 is fixedly connected to the top of the base 1;

[0062] In practical applications, the control device 2 is a plc programmable logic controller, which can control the operation of the device and record data;

[0063] Optionally, the model of the control device 2 may be S7-1200;

[0064] The control device 2 records the transmitted data during use. Optionally, the program may be:

[0065] class DataRecord:

[0066] def __init__(self):

[0067] self.records = [] # Use lists to store data records

[0068] def add_record(self, record):

[0069] """

[0070] Add a data record

[0071] """

[0072] self.records.append(record)

[0073] def display_records(self):

[0074] """

[0075] Show all data records

[0076] """

[0077] for i, record in enumerate(self.records):

[0078] print(f"Record {i+1}: {record}");

[0079] The right side of the base 1 is fixedly connected with a bearing seat 4, the left side of the base 1 is fixedly connected with a mounting seat 5, the inner wall of the bearing seat 4 is rotatably connected with a main shaft 3, and the outer wall of the main shaft 3 is fixedly connected with an extrusion mechanism 6;

[0080] The extrusion mechanism 6 comprises:

[0081] A mounting bracket 64, the mounting bracket 64 is fixedly connected to the outer wall of the main shaft 3, and a limiting hole 63 is provided on the outer wall of the mounting bracket 64;

[0082] An arc block 61, the arc block 61 is fixedly connected to the top of the mounting bracket 64;

[0083] The telescopic machine 65 is fixedly connected to the bottom of the mounting bracket 64, and the top of the telescopic machine 65 is movably connected to the elliptical block 62;

[0084] In practical applications, the telescopic machine 65 is used to promote the rise and fall of the elliptical block 62;

[0085] The outer wall of the main shaft 3 is fixedly connected with a barometer 9;

[0086] In practical applications, the barometer 9 is used to measure the air pressure;

[0087] Optionally, the model of the barometer 9 may be an ELECALL round pointer precision micro differential pressure gauge;

[0088] A rubber port 10 is fixedly connected to the top of the barometer 9;

[0089] A steering detection mechanism 8 is fixedly connected to the outer wall of the base 1 . The steering detection mechanism 8 includes a connecting bracket 86 . The connecting bracket 86 is fixedly connected to the right side of the base 1 .

[0090] The outer wall of the connecting bracket 86 is fixedly connected with a motor 85;

[0091] In practical applications, the motor 85 can drive the spindle 3 to rotate clockwise and counterclockwise in a cycle;

[0092] The angle at which the motor 85 drives the spindle 3 to rotate is transmitted to the control device 2;

[0093] The motor 85 is fixedly connected to the main shaft 3 via a rotating shaft, and the motor 85 drives the main shaft 3 to rotate at an angle of 20 to -20 degrees.

[0094] A limit bearing 84 is fixedly connected to the right side of the base 1 , and a belt 81 is sleeved on the outer wall of the limit bearing 84 and the outer wall of the main shaft 3 .

[0095] The outer wall of the limit bearing 84 is rotatably connected with a steering needle 82 , and the outer wall of the limit bearing 84 is fixedly connected with an angle detection device 83 , and the steering needle 82 is in active contact with the angle detection device 83 .

[0096] The top of the bearing seat 4 is fixedly connected with a vibration detection mechanism 7 , which includes a spring 75 , and the spring 75 is fixedly connected to the top of the bearing seat 4 .

[0097] The top of the spring 75 is fixedly connected to a fixing block 74 , and the outer wall of the fixing block 74 is fixedly connected to a toggle rod 76 .

[0098] A protruding plate 77 is fixedly connected to the outer wall of the main shaft 3 adjacent to the toggle rod 76 , and the protruding plate 77 is in movable contact with the toggle rod 76 .

[0099] A vibration plate 72 is fixedly connected to the outer wall of the main shaft 3, and a vibration scale 71 is fixedly connected to the top of the mounting seat 5;

[0100] In actual application, the vibration scale 71 monitors the vibration of the main shaft 3 through the vibration detection needle 73, and then transmits the monitored data to the control device 2;

[0101] Optionally, the vibration scale 71 may be a DELIXI vibration meter;

[0102] The outer wall of the vibration scale 71 is movably connected with a vibration detection needle 73, and the vibration detection needle 73 is in movably contact with the vibration disk 72;

[0103] In actual application, the vibration scale 71 , the telescopic machine 65 , the barometer 9 , and the angle detection device 83 are all electrically connected to the control device 2 via power lines.

[0104] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressure testing device for a negative pressure drainage tube, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a control device (2), the right side of the base (1) is fixedly connected to a bearing seat (4), the left side of the base (1) is fixedly connected to a mounting seat (5), the inner wall of the bearing seat (4) is rotatably connected to a main shaft (3), and the outer wall of the main shaft (3) is fixedly connected to an extrusion mechanism (6); The extrusion mechanism (6) comprises: A mounting bracket (64), the mounting bracket (64) being fixedly connected to an outer wall of the main shaft (3), and a limiting hole (63) being provided on the outer wall of the mounting bracket (64); An arc-shaped block (61), wherein the arc-shaped block (61) is fixedly connected to the top of the mounting bracket (64); A telescopic machine (65), the telescopic machine (65) is fixedly connected to the bottom of the mounting bracket (64), and the top of the telescopic machine (65) is movably connected to an elliptical block (62).

2. A pressure testing device for a negative pressure drainage tube according to claim 1, characterized in that: A pressure gauge (9) is fixedly connected to the outer wall of the main shaft (3), and a rubber port (10) is fixedly connected to the top of the pressure gauge (9).

3. A pressure testing device for a negative pressure drainage tube according to claim 1, characterized in that: A steering detection mechanism (8) is fixedly connected to the outer wall of the base (1); the steering detection mechanism (8) comprises a connecting bracket (86); and the connecting bracket (86) is fixedly connected to the right side of the base (1).

4. A pressure testing device for a negative pressure drainage tube according to claim 3, characterized in that: The outer wall of the connecting bracket (86) is fixedly connected to a motor (85), and the motor (85) is fixedly connected to the main shaft (3) via a rotating shaft. The motor (85) drives the main shaft (3) to rotate at an angle of 20 to -20 degrees.

5. A pressure testing device for a negative pressure drainage tube according to claim 4, characterized in that: The right side of the base (1) is fixedly connected to a limit bearing (84), and the outer wall of the limit bearing (84) and the outer wall of the main shaft (3) are sleeved with a belt (81).

6. A pressure testing device for a negative pressure drainage tube according to claim 5, characterized in that: The outer wall of the limit bearing (84) is rotatably connected to a steering needle (82), the outer wall of the limit bearing (84) is fixedly connected to an angle detection device (83), and the steering needle (82) is in active contact with the angle detection device (83).

7. A pressure testing device for a negative pressure drainage tube according to claim 1, characterized in that: A vibration detection mechanism (7) is fixedly connected to the top of the bearing seat (4); the vibration detection mechanism (7) comprises a spring (75); and the spring (75) is fixedly connected to the top of the bearing seat (4).

8. A pressure testing device for a negative pressure drainage tube according to claim 7, characterized in that: The top of the spring (75) is fixedly connected to a fixing block (74), and the outer wall of the fixing block (74) is fixedly connected to a toggle rod (76).

9. A pressure testing device for a negative pressure drainage tube according to claim 8, characterized in that: A protruding plate (77) is fixedly connected to the outer wall of the main shaft (3) at a position adjacent to the toggle rod (76), and the protruding plate (77) is in movably contact with the toggle rod (76).

10. A pressure testing device for a negative pressure drainage tube according to claim 9, characterized in that: The outer wall of the main shaft (3) is fixedly connected to a vibration disk (72), the top of the mounting seat (5) is fixedly connected to a vibration scale (71), the outer wall of the vibration scale (71) is movably connected to a vibration detection needle (73), and the vibration detection needle (73) is in movably contact with the vibration disk (72).

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