Pressure testing device

Abstract

The utility model provides a pressure testing device, and relates to the field of medical instrument testing. The pressure testing device comprises a clamping part and an actuating part. The clamping part comprises a clamping unit, the clamping unit is used for fixing a test object in a releasable mode, and the test object is provided with a contact end. The actuating part is used for bearing the pressure receiving unit, and the contact end of the test object is in contact with the pressure receiving unit. The clamping part comprises a force configuration unit, the force configuration unit comprises a balancing weight, and when the contact end and the pressure receiving unit form an included angle larger than 0 degree and smaller than 90 degrees, the force configuration unit is used for adjusting the contact force applied to the pressure receiving unit by the contact end by adjusting the distance between the balancing weight and the test object. The applied pressure is convenient to adjust, so that the pressure testing process is simpler.

Description

Technical Field

[0001] This utility model relates to the field of medical device testing, and in particular to a pressure testing device. Background Technology

[0002] A dental flosser is a medical device used for oral hygiene. Pressure testing is required to ensure the safety of the device. Currently, the pressure testing devices for dental flossers are complex in structure, making it difficult to adjust the applied pressure and precisely control it, resulting in inaccurate test results.

[0003] In addition, a testing platform is needed for mechanical-related tests involving brain-computer interfaces.

[0004] Therefore, a pressure testing device is proposed that facilitates the adjustment of the applied pressure, making the pressure testing process simpler, and may be applied to related tests of invasive brain-computer interfaces. Utility Model Content

[0005] The purpose of this invention is at least to provide a pressure testing device that facilitates the adjustment of the applied pressure, making the pressure testing process simpler.

[0006] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0007] One embodiment of this utility model provides a pressure testing device, which includes a clamping part and an actuating part.

[0008] The clamping part includes a clamping unit for releasably securing a test object, the test object having a contact end.

[0009] The actuator is used to support the pressure receiving unit, and the contact end of the test object contacts the pressure receiving unit.

[0010] The clamping part includes a force configuration unit, which includes a counterweight. When the contact end and the pressure receiving unit form an angle greater than 0° and less than 90°, the force configuration unit is used to adjust the contact force applied to the pressure receiving unit by adjusting the distance between the counterweight and the test object.

[0011] In some embodiments, the clamping part includes a base and a flip plate, and the force configuration unit includes a lifting slide.

[0012] The base is configured to provide a static rigid reference, with the base providing mutually orthogonal X, Y and Z directions.

[0013] The flip plate is set relative to the base in a way that it can be flipped in the YZ plane, where the YZ plane is a plane orthogonal to the Y direction and the Z direction.

[0014] The lifting slide and the clamping unit are respectively set on opposite sides of the flip plate along the Y direction, and the contact end is located at the front end of the test object along the Y direction.

[0015] The lifting slide is configured to adjust the angle between the contact end and the pressure receiving unit by adjusting its own lifting height and the flipping angle of the flipping plate.

[0016] In some embodiments, the clamping part includes a sliding plate that is slidably connected to a groove disposed on the base, the groove being arranged along the Y direction.

[0017] The skateboard is configured to be fixed relative to the base via a locking knob.

[0018] In some embodiments, the force configuration unit includes a linear motor configured to adjust the position of the counterweight along the central axis of the test object to adjust the distance between the counterweight and the test object.

[0019] In some embodiments, counterweights are provided on opposite sides of the flip plate along the X direction, and the counterweights on both sides of the flip plate are symmetrically arranged along the central axis of the test object.

[0020] In some embodiments, adjustable counterweight units are respectively provided on opposite sides of the flip plate along the Y direction, the adjustable counterweight units are arranged along the X direction, and the clamping unit is located between the two adjustable counterweight units in the Y direction.

[0021] The adjusting counterweight unit is configured to adjust the contact force applied to the pressure receiving unit by adjusting its own counterweight weight.

[0022] In some embodiments, the counterweight adjustment unit includes a counterweight rod and a counterweight ring. The counterweight rod is arranged along the X direction, and the counterweight ring is passed through the counterweight rod. The number of counterweight rings on the counterweight rod is adjustable.

[0023] In some embodiments, the actuating part and the clamping part have corresponding mutually orthogonal X, Y and Z directions.

[0024] The actuator includes a Y-axis motion module and an X-axis motion module. The Y-axis motion module and the X-axis motion module jointly support the pressure receiving unit. The Y-axis motion module and the X-axis motion module are configured to perform interpolation motion, driving the pressure receiving unit to execute an arbitrary two-dimensional trajectory in the XY plane, where the XY plane is a plane orthogonal to the X and Y directions.

[0025] In some embodiments, the Y-axis motion module and the X-axis motion module are connected to the pressure receiving unit via a connecting plate, and a flip hinge is provided between the connecting plate and the pressure receiving unit.

[0026] The flip hinge is configured to cause the pressure receiving unit to flip in the YZ plane, where the YZ plane is a plane orthogonal to the Y and Z directions.

[0027] In some embodiments, the flip hinge and pressure receiving unit are provided with a pressure measuring unit, which is arranged in parallel with the pressure receiving unit. The pressure measuring unit is used to measure the pressure applied to the pressure measuring unit by the contact end.

[0028] In some embodiments, when the flip hinge is in a horizontal state, the pressure receiving unit is parallel to the XY plane, and the test object includes a dental flosser.

[0029] A leveling support rod is installed between the connecting plate and the pressure receiving unit. The leveling support rod is supported between the connecting plate and the pressure receiving unit. The height of the leveling support rod along the Z direction is adjustable to help the pressure receiving unit to be parallel to the XY plane.

[0030] In some embodiments, when the flip hinge is in a vertical state, the pressure receiving unit is parallel to the XZ plane, and the test object includes a brain-computer interface, wherein the XZ plane is a plane orthogonal to the X and Z directions.

[0031] The flip hinge includes a self-locking component, which is used to lock the flip hinge in a vertical position.

[0032] The force configuration unit involved in this utility model can adjust the torque balance by adjusting the distance between the counterweight and the test object when the contact end of the test object and the pressure receiving unit are at an angle greater than 0° and less than 90°. This adjusts the contact force applied to the pressure receiving unit by the contact end, enabling precise control of the contact force between the contact end and the pressure receiving unit under oblique contact conditions. It is suitable for various test scenarios. Attached Figure Description

[0033] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals. Wherein:

[0034] Figure 1 This is a structural schematic diagram of a pressure testing device according to some embodiments;

[0035] Figure 2 A structural schematic diagram of the base is shown in some embodiments;

[0036] Figure 3 A schematic diagram of the internal structure of the base shown in some embodiments;

[0037] Figure 4 A schematic diagram of the clamping part shown in some embodiments;

[0038] Figure 5 A schematic diagram of the actuator is shown in some embodiments. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0040] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other words can achieve the same purpose, they may be replaced by other expressions.

[0041] It is understood that the technical terms that may be involved in the description of this specification, such as “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the implementation method 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, they should not be construed as limiting the scope of protection of the utility model.

[0042] It should be noted that the use of terms such as "first" and "second" to define features in this document is merely for the purpose of distinguishing the corresponding features. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. As shown in this specification and claims, the terms "a," "an," "a kind," and / or "the" do not specifically refer to the singular and may also include the plural, unless the context clearly indicates otherwise. Generally, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0043] In the description of this specification, it should also be noted that, unless otherwise expressly specified or limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium, or a connection within two components, etc. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0044] Figure 1 This is a structural schematic diagram of a pressure testing device according to some embodiments.

[0045] This specification provides an embodiment of a pressure testing device 1000. For example... Figure 1 As shown, the pressure testing device 1000 includes a base 100, a clamping part 200, and an actuating part 300. The base 100 adopts a rigid frame structure, providing a static reference for the clamping part 200 and the actuating part 300. The clamping part 200 is used to clamp and fix the test object (e.g., a dental flosser, a brain-computer interface, etc.), and the actuating part 300 carries a pressure receiving unit (e.g., a glass slide). The clamping part 200 clamps the test object and applies pressure to the pressure receiving unit to achieve pressure testing. For example, the clamping part 200 clamps and fixes a dental flosser, and the actuating part 300 carries the pressure receiving unit, so that the dental flosser and the pressure receiving unit generate a contact force of approximately 0.15N, which meets the test requirements of YY / T0751-2009. As another example, the clamping part 200 clamps and fixes a brain-computer interface, and the actuating part 300 carries the pressure receiving unit, so that the brain-computer interface and the pressure receiving unit generate a small contact force, which meets the relevant puncture force detection conditions for brain-computer interfaces.

[0046] Figure 2 A structural schematic diagram of the base is shown according to some embodiments. Figure 3 A schematic diagram of the internal structure of the base is shown according to some embodiments.

[0047] like Figure 2 and Figure 3 As shown, the base 100 includes a base plate 102, a top plate 104, a front enclosure 103, and a rear enclosure 105. The base plate 102, top plate 104, front enclosure 103, and rear enclosure 105 together form a box-like structure, providing rigid support for the clamping part 200 and the actuating part 300. A foot 101 is provided on the base plate 102 facing outwards. The foot 101 is used to lift the base plate 102, creating a certain space between the base plate 102 and the placement surface, facilitating movement.

[0048] The box-like structure formed by the base 100 has an internal space for housing the power supply, driver, controller, processor, and other equipment associated with the pressure testing device 1000.

[0049] In some embodiments, the base plate 102 and the top plate 104 are made of aluminum alloy metal sheets. In some embodiments, the front enclosure 103 is manufactured using sheet metal processing and baking paint processes to reduce the overall weight of the device. In some embodiments, the base plate 102 and the top plate 104 are reinforcedly connected using standard aluminum profiles 106 to provide a solid foundation for the clamping part 200 and the actuating part 300.

[0050] Figure 4 A schematic diagram of the clamping portion is shown in some embodiments. The clamping portion 200 has X, Y and Z directions that are mutually orthogonal to each other.

[0051] like Figure 4 As shown, the clamping part 200 includes a clamping unit. The clamping unit secures the test object, such as the dental flosser 240, in a releasable manner (e.g., by clamps, clips, or screws). For ease of description, this specification will continue to use the dental flosser 240 as an example of the test object, and does not constitute a limiting description of the test objects of the pressure testing device. In some embodiments, such as Figure 4 As shown, the clamping unit includes two fixed clamping plates 212 and several (e.g., 1 to 4) adjustable support rods 213. The two fixed clamping plates 212 pass through the adjustable support rods 213, which extend along the Z direction. The height of the fixed clamping plates 212 on the adjustable support rods 213 is adjustable. The dental flosser 240 is clamped and fixed between the two fixed clamping plates 212. The height of the dental flosser 240 can be adjusted by adjusting the height of the two fixed clamping plates 212 on the adjustable support rods 213.

[0052] The test object has a contact end, such as the cleaning head of a dental scaler 240 or the probe of a brain-computer interface. The contact end of the test object faces the pressure receiving unit of the actuator 300. The contact end is located at the front end of the test object along the Y direction.

[0053] The clamping unit 200 includes a flip plate 210, which can be considered as a connection structure between the clamping unit and the force configuration unit. The clamping unit is fixed on the flip plate 210. Specifically, the adjustable support rod 213 is fixed on the flip plate 210.

[0054] The clamping part 200 includes a force configuration unit, which includes a counterweight. When the contact end and the pressure receiving unit form an angle greater than 0° and less than 90°, the force configuration unit adjusts the distance between the counterweight and the dental scaler 240, for example, by moving the counterweight along the central axis of the dental scaler 240, to change the torque balance and thus adjust the contact force applied by the contact end to the pressure receiving unit. This design enables precise control of the contact force between the contact end and the pressure receiving unit under oblique contact conditions and is suitable for various testing scenarios.

[0055] In some embodiments, see Figure 4The force configuration unit includes a linear counterweight assembly 220, which includes a linear motor and a counterweight block. The linear motor is configured to adjust the position of the counterweight block along the Y direction to adjust the distance between the counterweight block and the test object. Specifically, the linear motor includes a transmission rod, and the counterweight block is disposed on the transmission rod. The linear motor can drive the counterweight block to move on the transmission rod, which is parallel to the central axis. In some embodiments, the linear motor and the counterweight block are respectively disposed on opposite sides of the flip plate 210 along the Z direction. In this case, the flip plate 210 is coplanar with the XY plane, which is a plane orthogonal to the X and Y directions. In some embodiments, a pair of linear counterweight assemblies 220 are mounted on the lower side of the flip plate 210. The pair of linear counterweight assemblies 220 are respectively disposed on opposite sides of the flip plate 210 along the X direction. In this case, the flip plate 210 is coplanar with the XY plane, the central axis of the dental scaler 240 extends along the Y direction, and the linear counterweight assemblies 220 on both sides of the flip plate 210 are symmetrically arranged along the central axis of the dental scaler 240.

[0056] In some embodiments, adjustable counterweight units 211 are respectively provided on opposite sides of the flip plate 210 along the Y direction. In this case, the flip plate 210 is coplanar with the XY plane, and the adjustable counterweight units 211 are arranged along the X direction, i.e., the adjustable counterweight units 211 are perpendicular to the central axis of the dental scaler 240. The clamping unit is located between the two adjustable counterweight units 211 in the Y direction. The adjustable counterweight units 211 can adjust their own weight, for example, by increasing or decreasing the weight, to change the weight distribution on the flip plate 210, thereby adjusting the contact force applied to the pressure receiving unit at the contact end. This design provides another force adjustment mechanism, which, when used in conjunction with a linear motor, enhances the flexibility of pressure adjustment.

[0057] In some embodiments, the adjusting counterweight unit 211 includes a counterweight rod and counterweight rings. The counterweight rod is detachably mounted (e.g., via a bracket) on the flip plate 210 along the X direction. The counterweight rings (e.g., metal rings or standard weights) are threaded onto the counterweight rod and can slide or be fixed along it. The number of counterweight rings can be adjusted, thereby changing the total weight of the adjusting counterweight unit 211. Users can quickly adjust the counterweight according to testing needs, achieving coarse or fine adjustment of the contact force.

[0058] In some embodiments, the clamping part 200 includes a base 201, which provides a static rigid reference for the entire clamping part 200. The base 201 provides and defines two mutually orthogonal X-direction, Y-direction, and Z-direction. The X-direction can be understood as horizontal, the Y-direction as horizontal, and the Z-direction as vertical. The base 201 is fixed to the base 100 by a detachable method (e.g., bolt connection), which facilitates disassembly and assembly and makes maintenance convenient.

[0059] In some embodiments, the flip plate 210 is configured relative to the base 201 in a manner that allows it to flip within the YZ plane (i.e., rotate about the X-axis), wherein the YZ plane is a plane orthogonal to the Y and Z directions. Specifically, the flip plate 210 is connected to the base 201 via a hinge or a flip bearing 204, allowing the flip plate 210 to flip within the YZ plane. In some embodiments, the flip bearing 204 is connected to opposite sides of the flip plate 210 (coplanar with the XY plane) along the X direction.

[0060] In some embodiments, the force configuration unit includes a lifting slide 202. The lifting slide 202 and the clamping unit are respectively disposed on opposite sides of the flip plate 210 (coplanar with the XY plane) along the Y direction. The lifting slide 202 is located on one side of the flip plate 210, and the clamping unit is located on the other side of the flip plate 210, and the lifting slide 202 and the clamping unit are arranged along the Y direction.

[0061] By way of example only, the lifting slide 202 includes a lifting mechanism. The lifting slide 202 pushes or pulls the tilting plate 210 by adjusting the lifting height of the lifting mechanism, thereby changing the tilting angle of the tilting plate 210, where the tilting angle of the tilting plate 210 is the angle between the tilting plate 210 and the XY plane. By adjusting the tilting angle of the tilting plate 210, the angle between the contact end of the dental flosser 240 and the pressure receiving unit is adjusted, varying it between 0° and 90° to accommodate different testing angles. Simultaneously, under different tilt contact angles, the force is redistributed, and the contact force between the contact end of the dental flosser 240 and the pressure receiving unit is adjusted. This design provides another force adjustment mechanism, which, when used in conjunction with the adjusting counterweight unit 211 or the linear counterweight assembly 220, enhances the flexibility of force control.

[0062] In some embodiments, the clamping part 200 includes a slide plate 203, which is slidably connected to a groove disposed on the base 201. The groove is arranged along the Y direction, i.e., parallel to the central axis of the test object. The slide plate 203 is configured to be fixed relative to the base by a locking knob 205. Specifically, the slide plate 203 can be moved along the groove manually or automatically to adjust the position of the clamping unit in the Y direction, facilitating the alignment of the contact end of the dental scaler 240 with the pressure receiving unit. When the locking knob 205 is tightened, the slide plate 203 is locked in the desired position, ensuring the stability of the clamping unit during testing.

[0063] The clamping part 200 provided in the embodiments of this specification clamps the dental flosser 240. By adjusting the lifting height of the lifting slide 202, adjusting the position of the counterweight block of the linear counterweight assembly 220, and / or changing the counterweight weight of the adjusting counterweight unit 211, the contact force generated between the dental flosser 240 and the pressure receiving unit can be flexibly adjusted.

[0064] Figure 5A schematic diagram of the actuator is shown in some embodiments. The actuator 300 has X, Y and Z directions that are mutually orthogonal to each other and correspond to the clamping part 200.

[0065] like Figure 5 As shown, the actuating part 300 is used to carry the pressure receiving unit (e.g., a glass slide 317), and the contact end of the dental scaler contacts the surface of the pressure receiving unit. In some embodiments, the actuating part 300 includes a connecting platform 314, a glass stage 315, and a fixing clip 316, wherein the pressure receiving unit is the glass slide 317. The fixing clip 316 presses against the glass stage 315, and the glass stage 315 is fixed on the connecting platform 314.

[0066] In some embodiments, the actuator 300 includes a Y-axis motion motor 301 and a Y-axis motion module 302, which provide the foundation for the actuator 300 as a whole. The Y-axis motion motor 301 drives the Y-axis motion module 302 to move along the Y direction.

[0067] In some embodiments, the actuating unit 300 includes an X-axis motion motor 303 and an X-axis motion module 304. The X-axis motion motor 303 drives the X-axis motion module 304, which is fixed to the Y-axis motion module 302. The Y-axis motion module 302 and the X-axis motion module 304 jointly support the pressure receiving unit. The Y-axis motion module and the X-axis motion module are configured to perform interpolation motion, causing the pressure receiving unit to execute arbitrary two-dimensional trajectories in the XY plane. This allows the pressure receiving unit to simulate various motion modes to test the pressure response of the test object under different trajectories. For example, the pressure receiving unit executes the U-shaped path specified in YY / T0751-2009. When the pressure receiving unit moves according to the preset U-shaped path parameters, it contacts the dental scaler 240 and leaves a mark. Subsequent detection and judgment are performed based on the mark.

[0068] In some embodiments, see Figure 5 The X-axis motion module 304 is connected to the pressure receiving unit via a connecting plate 310. A flip hinge 311 is provided between the connecting plate 310 and the pressure receiving unit. The flip hinge 311 is configured to cause the pressure receiving unit to flip in the YZ plane (i.e., rotate around the X-axis). The flip hinge 311 is a hinge or ball joint, etc. The setting of the flip hinge 311 allows the pressure receiving unit to adjust its tilt angle to match the included angle of the contact end of the test object, improving test accuracy or adapting to the detection of more medical-related pressures.

[0069] In some embodiments, when the flip hinge 311 is in a horizontal state, the pressure receiving unit is parallel to the XY plane, that is, the pressure receiving unit is placed horizontally. Figure 5As shown, the test object includes a dental flosser 240. The position of the contact end of the dental flosser 240 is adjusted by the slide plate 203 and the clamping unit, and the contact force between the dental flosser 240 and the pressure receiving unit is flexibly adjusted by adjusting the lifting height of the lifting slide 202, adjusting the position of the counterweight block of the linear counterweight assembly 220, and / or changing the counterweight weight of the adjusting counterweight unit 211.

[0070] In some embodiments, a leveling rod 312, such as an adjustable screw, is provided between the connecting plate 310 and the pressure receiving unit. The leveling rod 312 is supported between the connecting plate 310 and the pressure receiving unit, and its height along the Z direction is adjustable. By adjusting the height of the leveling rod 312, the user can help keep the pressure receiving unit parallel to the XY plane, eliminate installation errors, and ensure the accuracy of the test.

[0071] Current pressure testing devices are limited to testing dental scalers and cannot be used for testing many other medical devices. For example, invasive brain-computer interface (BCI) devices are being developed frequently, creating a significant demand for mechanical testing related to these devices. The pressure testing device provided in this specification, however, is applicable to testing a wider range of medical devices.

[0072] In some embodiments, when the flip hinge 311 is in a vertical state, the pressure receiving unit is parallel to the XZ plane, i.e., the pressure receiving unit is placed vertically, where the XZ plane is a plane orthogonal to the X and Z directions. The test object includes a brain-computer interface (BCI). The position of the BCI contact end is adjusted by the clamping unit, and the angle between the BCI contact end and the pressure receiving unit is adjusted by adjusting the lifting height of the lifting slide 202. The slide assists the BCI in piercing the pressure receiving unit to achieve the relevant puncture force detection of the BCI.

[0073] In some embodiments, the flip hinge 311 includes a self-locking component, such as a magnetic lock or a mechanical latch, for locking the flip hinge 311 when it is in a vertical state, preventing the pressure receiving unit from accidentally flipping over, and ensuring stability and safety during the testing process.

[0074] In some embodiments, the actuating unit 300 includes a pressure measuring unit 313, such as a pressure sensor or a force gauge. The pressure measuring unit 313 is disposed between the flip hinge 311 and the pressure receiving unit, and is arranged parallel to the pressure receiving unit. The pressure measuring unit 313 is used to measure the pressure applied to the pressure measuring unit by the contact end. The parallel arrangement of the pressure measuring unit 313 with the pressure receiving unit allows the pressure measuring unit 313 to directly measure the pressure when pressure is applied to the contact end. The output signal of the pressure measuring unit 313 can be connected to a data acquisition system for real-time monitoring and recording of the contact force, ensuring the reliability of the test data.

[0075] The basic concepts have been described above. It is clear that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification, especially for those skilled in the art. Furthermore, unless expressly stated in the claims, the order of elements and sequences, the use of numbers and letters, or other names in this specification are not intended to limit the order of the processes and methods described herein. Although various examples of utility model embodiments that are currently considered useful have been discussed in the foregoing disclosure, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments described herein.

Claims

1. A pressure testing device, characterized by, The pressure testing device comprises a clamping part and an actuating part; The clamping part comprises a clamping unit for releasably fixing a test object, the test object having a contact end; The actuating part is configured to carry a pressure receiving unit, the contact end of the test object being in contact with the pressure receiving unit; The clamping part comprises a force configuration unit, the force configuration unit comprising a counterweight, when the contact end and the pressure receiving unit form an angle greater than 0° and less than 90°, the force configuration unit is configured to adjust the contact force of the contact end on the pressure receiving unit by adjusting the distance between the counterweight and the test object.

2. The pressure testing device of claim 1, wherein, The clamping part comprises a base and a turnover plate, and the force configuration unit comprises a jacking slide; The base is configured to provide a static rigid reference, and the base provides X, Y and Z directions that are mutually orthogonal in pairs; The turnover plate is arranged on the base in a manner that can be turned in the YZ plane, wherein the YZ plane is a plane in which the Y direction and the Z direction are orthogonal; The jacking slide and the clamping unit are respectively arranged on opposite sides of the turnover plate along the Y direction, and the contact end is located at the front end of the test object along the Y direction; The jacking slide is configured to adjust the turning angle of the turnover plate by adjusting its own jacking height, thereby adjusting the angle between the contact end and the pressure receiving unit.

3. The pressure testing device of claim 2, wherein, The clamping part comprises a sliding plate, which is slidingly connected with a sliding groove arranged on the base, and the sliding groove is arranged along the Y direction; The sliding plate is configured to be fixed relative to the base by a locking knob.

4. The pressure testing device of claim 2, wherein, The force configuration unit comprises a linear motor configured to adjust the position of the counterweight along the central axis of the test object to adjust the distance between the counterweight and the test object.

5. The pressure testing device of claim 3, wherein, Counterweights are arranged on opposite sides of the turnover plate along the X direction, and the counterweights on both sides of the turnover plate are symmetrically arranged along the central axis of the test object.

6. The pressure testing device of claim 2, wherein, Adjusting counterweight units are respectively arranged on opposite sides of the turnover plate along the Y direction, and the adjusting counterweight units are arranged along the X direction, and the clamping unit is located between the two adjusting counterweight units along the Y direction; The adjusting counterweight units are configured to adjust the contact force of the contact end on the pressure receiving unit by adjusting the weight of the adjusting counterweight units.

7. The pressure testing device of claim 6, wherein, The adjusting counterweight unit comprises a counterweight rod and a counterweight ring, the counterweight rod is arranged along the X direction, the counterweight ring is arranged on the counterweight rod, and the number of the counterweight rings on the counterweight rod is adjustable.

8. The pressure testing device of any one of claims 1-7, wherein, The actuating part and the clamping part have corresponding X, Y and Z directions that are mutually orthogonal in pairs; The actuating part comprises a Y-direction motion module and an X-direction motion module, and the Y-direction motion module and the X-direction motion module jointly carry the pressure receiving unit, and the Y-direction motion module and the X-direction motion module are configured to perform interpolation motion to drive the pressure receiving unit to perform any two-dimensional trajectory in the XY plane, wherein the XY plane is a plane in which the X direction and the Y direction are orthogonal.

9. The pressure testing device of claim 8, wherein, The Y-direction motion module and the X-direction motion module are connected with the pressure receiving unit through a connecting plate, and a turnover hinge is arranged between the connecting plate and the pressure receiving unit; The turnover hinge is configured to drive the pressure receiving unit to turn over in a YZ plane, wherein the YZ plane is a plane in which the Y direction and the Z direction are orthogonal.

10. The pressure testing device of claim 9, wherein, The turnover hinge and the pressure receiving unit are provided with a pressure measuring unit, the pressure measuring unit is arranged in parallel with the pressure receiving unit, and the pressure measuring unit is used to measure the pressure applied by the contact end to the pressure measuring unit.

11. The pressure testing device of claim 9, wherein, When the turnover hinge is in a horizontal state, the pressure receiving unit is parallel to the XY plane, and the test object includes a dental cleaner; A leveling support rod is arranged between the connecting plate and the pressure receiving unit, the leveling support rod is supported between the connecting plate and the pressure receiving unit, the height of the leveling support rod in the Z direction is adjustable, and the leveling support rod is used to assist the pressure receiving unit to be parallel to the XY plane.

12. The pressure testing device of claim 9, wherein, When the turnover hinge is in a vertical state, the pressure receiving unit is parallel to the XZ plane, and the test object includes a brain-computer interface, wherein the XZ plane is a plane in which the X direction and the Z direction are orthogonal. The turnover hinge includes a self-locking assembly, and the self-locking assembly is used to realize self-locking of the turnover hinge when the turnover hinge is in a vertical state.

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