Sphygmomanometer calibrating device

Abstract

The utility model provides a sphygmomanometer calibrating device, which relates to the technical field of sphygmomanometer calibration, and comprises a cuff, a calibrating block is wrapped in the cuff, one end of the calibrating block is fixedly provided with an electric telescopic rod, one end of the electric telescopic rod is fixedly provided with a central bracket, and the other end of the central bracket is fixedly provided with a connecting rod. The two ends of the center support are rotationally connected with fixing supports, and elastic positioning blocks are fixedly installed in the fixing supports. The sphygmomanometer has the advantages that the pressure detection structure capable of being wrapped by the sphygmomanometer detection structure is arranged, pressure detection is conducted on the pressure detection structure by controlling the sphygmomanometer to work normally, and meanwhile the pressure detection structure detects the pressure value which can be detected when the sphygmomanometer is detected through the acting force and the counter-acting force; the pressure value detected by the sphygmomanometer is verified according to the pressure value detected by the pressure detection structure, the detection accuracy of the sphygmomanometer can be accurately judged, and the verification accuracy of the sphygmomanometer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sphygmomanometer calibration, in particular to a sphygmomanometer calibration device. Background Art

[0002] A sphygmomanometer is an instrument for measuring blood pressure, also known as a blood pressure monitor. Currently, sphygmomanometers on the market can be divided into two types: mercury type and electronic type. As for mercury sphygmomanometers, although they have higher accuracy, they are easily affected by environmental factors and may cause measurement errors. For patients with hypertension, sphygmomanometers not only fail to achieve the purpose of monitoring blood pressure, but may even delay the condition of the disease. Therefore, it is necessary to use a calibration device to calibrate the sphygmomanometer to ensure its accuracy.

[0003] CN202321435789.4 introduces a sphygmomanometer calibration device, which connects the hose of the mercury sphygmomanometer to the docking head, twists the adjustment ring to rotate, and the adjustment ring can drive the sealing plug to move in the cylinder through the threaded driving rod, which is conducive to the sealing plug to pressurize the mercury sphygmomanometer through the cavity, avoiding the disadvantage of inaccurate manual pressure control. The pressure in the mercury sphygmomanometer can be transferred to the pressure gauge through the delivery pipeline for detection, which is conducive to the calibration of the pressure in the sphygmomanometer and determines whether the sphygmomanometer reading is accurate. However, the calibration device is not convenient for calibrating the pressure value of the sphygmomanometer during operation, and it is easy to have a certain detection deviation due to the structure of the sphygmomanometer itself, and the accuracy of the calibration is low. Utility Model Content

[0004] Therefore, the purpose of the present invention is to provide a sphygmomanometer calibration device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a sphygmomanometer calibration device, including a sphygmomanometer frame, a manometer is fixedly installed on one end of the sphygmomanometer frame, a cuff is fixedly installed on one end of the manometer through a rubber tube, a balloon is fixedly installed on the cuff through a rubber tube, a calibration block is coated on the inside of the cuff, an electric telescopic rod is fixedly installed on one end of the calibration block, a center bracket is fixedly installed on one end of the electric telescopic rod, fixed brackets are rotatably connected at both ends of the center bracket, an elastic positioning block is fixedly installed on the inside of the fixed bracket, the calibration block is located inside the cuff, a pressure detection assembly is fixedly installed on the inside of the calibration block, the pressure detection assembly includes a pressure sensor and a detection plate, the pressure sensor is fixedly installed on the inside of the calibration block, and the detection end of the pressure sensor is fixedly installed on the detection plate.

[0006] Preferably, any of the above schemes is that a fixing groove adapted to the pressure gauge is provided inside the sphygmomanometer frame, a control air valve is provided at the air outlet of the balloon, and a one-way air hole is provided at one end of the balloon.

[0007] The above technical solution is adopted: gas is pumped into the inside of the cuff through a balloon to expand the cuff, Velcro is set on the surface of the cuff so that the cuffs can fit together to form a ring structure, and the pressure of the object tightly bound by the cuff is detected by a pressure gauge.

[0008] The calibration block is wrapped and tightly bound by a cuff that forms a circular ring structure after being fitted, and the pressure between the cuff and the calibration block is detected by a pressure detection component.

[0009] The pressure of the cuff-tightened calibration block acts on the detection plate. The pressure sensor detects the pressure on the detection plate. At the same time, the pressure gauge detects the pressure on the cuff. From the action force and reaction force, it can be seen that the pressure values ​​detected by the pressure sensor and the pressure gauge are the same. The detection accuracy of the sphygmomanometer is judged based on the value detected by the pressure sensor.

[0010] Preferably, any of the above schemes is that a connecting groove compatible with the electric telescopic rod is provided at one end of the calibration block, a movable groove compatible with the calibration block is provided in the middle of the central bracket, rotating grooves compatible with the fixed bracket are provided at both ends of the central bracket, and a positioning groove compatible with the elastic positioning block is provided inside the rotating groove.

[0011] The above technical solution is adopted: a display screen is set on the central bracket to display the pressure value detected by the pressure sensor for easy observation, and the central bracket is used to limit the calibration block. According to the calibration requirements, the electric telescopic rod is controlled to extend and retract to drive the calibration block to move, the position of the calibration block can be adjusted, and the pressure between the cuff and the calibration block can be adjusted.

[0012] Preferably, any of the above schemes has one end of the fixed bracket being provided with a notch matched with the central bracket, and both ends of the fixed bracket being provided with sliding grooves matched with the elastic positioning block.

[0013] By adopting the above technical solution, the central bracket can be supported by a fixed bracket, which is convenient for fixing the calibration device, and the position of the fixed bracket can be adjusted to facilitate disassembly, assembly, transportation and carrying of the central bracket.

[0014] Preferably, any of the above schemes comprises a positioning spring, a positioning movable block and a positioning limiting block, wherein the positioning spring is fixedly installed inside a fixed bracket, one end of the positioning spring is fixedly installed with a positioning movable block movably connected to the fixed bracket, and one end of the positioning movable block is fixedly connected with a positioning limiting block.

[0015] The above technical solution is adopted: according to the position requirement of the fixed bracket, the positioning movable block is manually pulled to drive the positioning spring to deform, and at the same time, the positioning movable block drives the positioning limiting block to move, so that the positioning limiting block can be moved out from the inside of the center bracket. After rotating the fixed bracket, the positioning movable block drives the positioning limiting block to reset under the action of the positioning spring.

[0016] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0017] 1. Set up a pressure detection structure that can be covered by the sphygmomanometer detection structure, perform pressure detection on the pressure detection structure by controlling the normal operation of the sphygmomanometer, and use the action force and reaction force to enable the pressure detection structure to detect the pressure value that can be detected by the sphygmomanometer during detection. Verify the pressure value detected by the sphygmomanometer according to the pressure value detected by the pressure detection structure, which can accurately judge the accuracy of the sphygmomanometer during detection and improve the accuracy of sphygmomanometer calibration.

[0018] 2. Support structures that can be rotated and adjusted are set at both ends of the calibration structure to support the calibration structure, so as to facilitate the placement of the calibration structure and improve the convenience of using the calibration structure.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of a local structure according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of a partial explosion structure according to an embodiment of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of a central support according to an embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of a fixing bracket according to an embodiment of the utility model;

[0026] Among them: 1-sphygmomanometer frame, 2-pressure gauge, 3-cuff, 4-balloon, 5-calibration block, 6-electric telescopic rod, 7-center bracket, 8-fixed bracket, 9-elastic positioning block, 91-positioning spring, 92-positioning movable block, 93-positioning limiting block, 10-pressure detection assembly, 101-pressure sensor, 102-detection board. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0028] like Figure 1-5 As shown, a sphygmomanometer calibration device of an embodiment of the utility model comprises a sphygmomanometer frame 1, a manometer 2 is fixedly mounted on one end of the sphygmomanometer frame 1, a cuff 3 is fixedly mounted on one end of the manometer 2 through a rubber tube, a balloon 4 is fixedly mounted on the cuff 3 through a rubber tube, a calibration block 5 is coated inside the cuff 3, an electric telescopic rod 6 is fixedly mounted on one end of the calibration block 5, a center bracket 7 is fixedly mounted on one end of the electric telescopic rod 6, fixed brackets 8 are rotatably connected at both ends of the center bracket 7, an elastic positioning block 9 is fixedly mounted inside the fixed bracket 8, the calibration block 5 is located inside the cuff 3, a pressure detection assembly 10 is fixedly mounted inside the calibration block 5, the pressure detection assembly 10 comprises a pressure sensor 101 and a detection plate 102, the pressure sensor 101 is fixedly mounted inside the calibration block 5, and the detection end of the pressure sensor 101 is fixedly mounted with the detection plate 102.

[0029] Preferably, any of the above schemes has a fixing groove adapted to the manometer 2 opened inside the sphygmomanometer frame 1, a control air valve is provided at the air outlet of the balloon 4, and a one-way air hole is provided at one end of the balloon 4.

[0030] The above technical solution is adopted: the balloon 4 pumps gas into the inside of the cuff 3 to expand the cuff 3, and Velcro is set on the surface of the cuff 3 so that the cuff 3 can fit together to form a circular ring structure, and the pressure of the object tightly bound by the cuff 3 is detected by the pressure gauge 2.

[0031] The cuff 3 that forms a circular ring structure after being attached is used to wrap and tightly bind the calibration block 5 , and the pressure between the cuff 3 and the calibration block 5 is detected by the pressure detection component 10 .

[0032] The pressure of the cuff 3 tightly tied to the calibration block 5 acts on the detection plate 102, and the pressure sensor 101 detects the pressure on the detection plate 102. At the same time, the pressure gauge 2 detects the pressure on the cuff 3. From the action force and the reaction force, it can be seen that the pressure values ​​detected by the pressure sensor 101 and the pressure gauge 2 are the same. The detection accuracy of the sphygmomanometer is judged based on the value detected by the pressure sensor 101.

[0033] Preferably, any of the above schemes has a connecting groove that is compatible with the electric telescopic rod 6 at one end of the calibration block 5, a movable groove that is compatible with the calibration block 5 is opened in the middle of the center bracket 7, rotating grooves that are compatible with the fixed bracket 8 are opened at both ends of the center bracket 7, and a positioning groove that is compatible with the elastic positioning block 9 is opened inside the rotating groove.

[0034] The above technical solution is adopted: a display screen is set on the central bracket 7 to display the pressure value detected by the pressure sensor 101 for easy observation, and the central bracket 7 is used to limit the calibration block 5. According to the calibration requirements, the electric telescopic rod 6 is controlled to extend and retract to drive the calibration block 5 to move, the position of the calibration block 5 can be adjusted, and the pressure between the cuff 3 and the calibration block 5 can be adjusted.

[0035] Preferably, any of the above solutions has one end of the fixed bracket 8 provided with a notch matched with the central bracket 7 , and both ends of the fixed bracket 8 provided with sliding grooves matched with the elastic positioning block 9 .

[0036] By adopting the above technical solution, the central support 7 can be supported by the fixed support 8, which is convenient for fixing the calibration device, and the position of the fixed support 8 can be adjusted to facilitate the disassembly, assembly, transportation and carrying of the central support 7.

[0037] Preferably, any of the above schemes comprises a positioning spring 91, a positioning movable block 92 and a positioning limiting block 93, the positioning spring 91 is fixedly installed inside the fixed bracket 8, one end of the positioning spring 91 is fixedly installed with a positioning movable block 92 movably connected to the fixed bracket 8, and one end of the positioning movable block 92 is fixedly connected with the positioning limiting block 93.

[0038] The above technical solution is adopted: according to the position requirement of the fixed bracket 8, the positioning movable block 92 is manually pulled to drive the positioning spring 91 to deform, and at the same time, the positioning movable block 92 drives the positioning limiting block 93 to move, so that the positioning limiting block 93 can be moved out from the inside of the center bracket 7. After rotating the fixed bracket 8, the positioning movable block 92 drives the positioning limiting block 93 to reset under the action of the positioning spring 91.

[0039] The utility model is a sphygmomanometer calibration device, the working principle of which is as follows:

[0040] Wrap the cuff 3 around the calibration block 5, press the balloon 4 to inflate the cuff 3, the manometer 2 detects the pressure value, the pressure sensor 101 detects the pressure between the detection plate 102 and the cuff 3, and the pressure detected by the sphygmomanometer is calibrated using the pressure value detected by the pressure sensor 101. Pull the positioning movable block 92 to rotate the fixed bracket 8 ninety degrees and then release the positioning movable block 92.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. Set up a pressure detection structure that can be covered by the sphygmomanometer detection structure, perform pressure detection on the pressure detection structure by controlling the normal operation of the sphygmomanometer, and use the action force and reaction force to enable the pressure detection structure to detect the pressure value that can be detected by the sphygmomanometer during detection. Verify the pressure value detected by the sphygmomanometer according to the pressure value detected by the pressure detection structure, which can accurately judge the accuracy of the sphygmomanometer during detection and improve the accuracy of sphygmomanometer calibration.

[0043] 2. Support structures that can be rotated and adjusted are set at both ends of the calibration structure to support the calibration structure, so as to facilitate the placement of the calibration structure and improve the convenience of using the calibration structure.

Claims

1. A sphygmomanometer calibration device, comprising a sphygmomanometer frame (1), a sphygmomanometer (2) being fixedly mounted on one end of the sphygmomanometer frame (1), a cuff (3) being fixedly mounted on one end of the sphygmomanometer (2) via a rubber tube, and a balloon (4) being fixedly mounted on the cuff (3) via a rubber tube, characterized in that: The cuff (3) is coated with a calibration block (5) inside, an electric telescopic rod (6) is fixedly mounted on one end of the calibration block (5), a center bracket (7) is fixedly mounted on one end of the electric telescopic rod (6), both ends of the center bracket (7) are rotatably connected to fixed brackets (8), an elastic positioning block (9) is fixedly mounted inside the fixed bracket (8), the calibration block (5) is located inside the cuff (3), a pressure detection assembly (10) is fixedly mounted inside the calibration block (5), the pressure detection assembly (100) comprises a pressure sensor (101) and a detection plate (102), the pressure sensor (101) is fixedly mounted inside the calibration block (5), and the detection end of the pressure sensor (101) is fixedly mounted with the detection plate (102).

2. A sphygmomanometer calibration device as claimed in claim 1, characterized in that: A fixing groove adapted to the pressure gauge (2) is provided inside the sphygmomanometer frame (1), a control air valve is provided at the air outlet of the balloon (4), and a one-way air hole is provided at one end of the balloon (4).

3. A sphygmomanometer calibration device as claimed in claim 2, characterized in that: One end of the calibration block (5) is provided with a connection groove adapted to the electric telescopic rod (6), the middle of the central bracket (7) is provided with a movable groove adapted to the calibration block (5), both ends of the central bracket (7) are provided with rotation grooves adapted to the fixed bracket (8), and the interior of the rotation groove is provided with a positioning groove adapted to the elastic positioning block (9).

4. A sphygmomanometer calibration device as claimed in claim 3, characterized in that: One end of the fixed bracket (8) is provided with a notch that matches the central bracket (7), and both ends of the fixed bracket (8) are provided with sliding grooves that match the elastic positioning block (9).

5. A sphygmomanometer calibration device as claimed in claim 4, characterized in that: The elastic positioning block (9) comprises a positioning spring (91), a positioning movable block (92) and a positioning limiting block (93); the positioning spring (91) is fixedly mounted inside the fixed bracket (8); one end of the positioning spring (91) is fixedly mounted with a positioning movable block (92) movably connected to the fixed bracket (8); one end of the positioning movable block (92) is fixedly connected with the positioning limiting block (93).

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