Testing device

Abstract

The utility model provides a testing device, which is used for testing electronic cigarette semi-finished products and comprises a bottom shell, a microphone assembly and an indicating lamp, the bottom shell is provided with an air inlet hole, a microphone cavity and an installation cavity, the microphone assembly is contained in the microphone cavity, the installation cavity is respectively communicated with the microphone cavity and the air inlet hole, and the testing device comprises a testing box and a suction assembly. The test box is used for connecting an electronic cigarette semi-finished product and is internally provided with a test cavity; when the test box is connected with the electronic cigarette semi-finished product, the test cavity is communicated with the mounting cavity; the suction assembly is connected with the test box and is used for sucking gas in the test cavity; the suction assembly sucks the gas in the test cavity to cause the pressure change of the microphone cavity and trigger the microphone assembly to start, and the indicating lamp can sense the start of the microphone assembly and illuminate. According to the method, unqualified semi-finished electronic cigarette products can be effectively identified, the test steps are simple and efficient, and the unqualified semi-finished electronic cigarette products can be quickly and accurately screened and picked out and fed back to the production stage in time so as to be adjusted in time.

Description

Technical Field

[0001] The utility model relates to the field of electronic cigarettes, in particular to a testing device. Background Art

[0002] Electronic cigarettes, also known as virtual cigarettes, electronic atomization structures, steam cigarettes, etc., have the same appearance as cigarettes and a similar taste to cigarettes. They are mainly used to simulate the feeling of smoking without affecting health, so as to help people quit smoking or replace cigarettes.

[0003] When electronic cigarette manufacturers sell electronic cigarettes, they ship them in SKD mode, that is, they ship semi-finished electronic cigarettes or electronic cigarette parts, and then the imported manufacturers assemble the finished electronic cigarettes themselves. In this mode, it is impossible to complete the testing of electronic cigarette semi-finished products and electronic cigarette parts in the same way as the finished electronic cigarettes, which easily leads to the outflow of substandard electronic cigarette semi-finished products and electronic cigarette parts.

[0004] In the related art, the semi-finished electronic cigarette product with a microphone assembly installed is prone to the problem that the microphone assembly cannot be started, resulting in the problem that the finished electronic cigarette assembled into a complete machine has no output. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a testing device to solve the problem in the prior art that the microphone assembly of the semi-finished electronic cigarette cannot be effectively detected and cannot be started.

[0006] The present application provides a testing device for testing a semi-finished electronic cigarette, wherein the semi-finished electronic cigarette comprises a bottom shell, a microphone assembly and an indicator light for sensing the activation of the microphone assembly, wherein the bottom shell is provided with an air inlet, a microphone cavity and an installation cavity, wherein the microphone assembly is accommodated in the microphone cavity, and the installation cavity is respectively connected to the microphone cavity and the air inlet, and the testing device comprises:

[0007] A test box, used to connect to the bottom shell, wherein a test cavity is provided in the test box; when the test box is connected to the bottom shell, the test cavity is communicated with the installation cavity;

[0008] A suction assembly connected to the test box and used to suck the gas in the test chamber;

[0009] The suction component sucks the gas in the test cavity to cause a pressure change in the microphone cavity and trigger the microphone component to start, and the indicator light can sense the start of the microphone component and light up. In one embodiment, the test box is formed with a first connection port at one end of the test cavity, and the first connection port is interference-connected with the bottom shell.

[0010] In one embodiment, the test box is an integrated structure made of flexible material, and a sealing rib is provided around the inner wall of the first connection port of the test box so that a partial diameter of the first connection port is smaller than an outer contour of a portion where the bottom shell and the test box are connected.

[0011] In one embodiment, the test kit comprises:

[0012] The box body is provided with the first connection port;

[0013] A sealing ring is installed at the first connection port, and the diameter of the sealing ring is smaller than the outer contour of the portion where the bottom shell and the test box are connected.

[0014] In one embodiment, a second connection port communicating with the test cavity is provided at one end of the test box away from the first connection port, and the second connection port is used to connect to the suction assembly.

[0015] In one embodiment, the semi-finished electronic cigarette product also includes a circuit board and a power supply assembly connected to the circuit board, the microphone assembly separates the microphone cavity into a first cavity and a second cavity, the first cavity is connected to the installation cavity, the circuit board is connected to the bottom shell and encloses the second cavity, and the microphone assembly can sense the pressure difference between the first cavity and the second cavity and start; when the test box is connected to the bottom shell, the power supply assembly is accommodated in the test cavity.

[0016] In one embodiment, the suction assembly comprises:

[0017] A negative pressure generator for generating suction;

[0018] The suction shell is provided with a suction nozzle connected to the negative pressure generator, the suction nozzle is used to connect the test box, and the negative pressure generator can suck the gas in the test cavity through the suction nozzle.

[0019] In one embodiment, the suction assembly further comprises:

[0020] A suction force adjustment member, used for controlling the negative pressure generator to generate suction force at a preset suction force value;

[0021] The negative pressure display sensor is used to sense and display the suction value adjusted by the suction adjustment member.

[0022] In one embodiment, the suction assembly further comprises a time-delay output element, and the time-delay output element is used to control the duration of the suction force generated by the negative pressure generator.

[0023] In one embodiment, a power connection socket is further provided on the suction shell, and a power module is connected to the power connection socket. The power module is used to control the power on and off of the negative pressure generator.

[0024] In this embodiment, a test box is set to simulate the shell of an electronic cigarette, and a test cavity is constructed as a closed cavity to simulate the whole machine environment of the electronic cigarette, and the suction component can suck the gas in the test cavity. When the microphone assembly is installed correctly or the air inlet hole is of appropriate size, the microphone assembly can sense the pressure change in the microphone cavity and start and trigger the indicator light to light up, indicating that the quality of the semi-finished electronic cigarette is relatively good. When the microphone assembly is installed incorrectly or the air inlet hole is flashing or blocked, the pressure change in the microphone cavity is small or even unable to produce a pressure change, and the microphone assembly cannot sense the pressure change in the microphone cavity and start, indicating that the quality of the semi-finished electronic cigarette is poor. The test device of this embodiment has a simple structure and can effectively identify unqualified semi-finished electronic cigarettes, and the test steps are simple and efficient, which can quickly and accurately screen out semi-finished electronic cigarettes with poor processes, and promptly feedback to the production stage for timely adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Schematic diagram of the structure of the test device in the embodiment of the present application.

[0027] Figure 2 This is a schematic diagram of the structure of the test box and the semi-finished electronic cigarette in the embodiment of the present application.

[0028] Figure 3 This is a schematic diagram of the structure of a semi-finished electronic cigarette in an embodiment of the present application.

[0029] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0030] Figure 5 Schematic diagram of the structure of the test box in the embodiment of the present application.

[0031] Figure 6 Schematic diagram of the internal structure of the test box in the embodiment of the present application.

[0032] Figure 7 It is a schematic diagram of the structure of the suction component in the embodiment of the present application.

[0033] Among them: 10, test box; 11, test cavity; 12, first connection port; 13, second connection port; 14, sealing rib; 20, suction assembly; 21, suction shell; 211, suction nozzle; 22, negative pressure generator; 23, suction force adjustment member; 24, negative pressure display sensor; 25, delayed output member; 26, power module; 27, power connection socket; 30, electronic cigarette semi-finished product; 31, bottom shell; 311, installation cavity; 312, air inlet; 313, microphone cavity; 3131, first cavity; 3132, second cavity; 32, power assembly; 33, microphone assembly; 34, circuit board. DETAILED DESCRIPTION

[0034] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0037] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0038] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0039] At present, some countries have the demand for SKD shipment of products, that is, exporting in the form of semi-finished products and / or parts and components, and then assembling them by the importing manufacturers themselves; in this state, the products do not need to be assembled into a complete machine, resulting in the inability to complete the testing of key product characteristics as a complete machine, and defective products cannot be intercepted and flow out, resulting in customers experiencing problems such as no output, empty suction experience, and large suction resistance when assembling the whole machine.

[0040] After investigation, it was found that the above problems occurred mainly due to the following two reasons: First, since electronic cigarette products use microphones to trigger the products, screws or buckles are generally used to fix the microphone components. During the assembly process, there are cases where the buckles or screws fail, resulting in the microphone components being unable to seal and leaking and unable to be triggered, and the product cannot be used; second, there are problems with the air inlet holes on the bottom cover, such as flaring and hole blockage, resulting in large suction resistance. When the suction force is small, the microphone cannot be driven to start, and the product is difficult to start. A larger suction force must be used to start the electronic cigarette, resulting in a poor user experience.

[0041] like Figure 1-7 As shown, this embodiment provides a testing device for testing an electronic cigarette semi-finished product 30, the electronic cigarette semi-finished product 30 includes a bottom shell 31, a microphone assembly 33 and an indicator light (not shown) for sensing the activation of the microphone assembly 33, the bottom shell 31 is provided with an air inlet 312, a microphone cavity 313 and an installation cavity 311, the microphone assembly 33 is accommodated in the microphone cavity 313, the installation cavity 311 is respectively connected to the microphone cavity 313 and the air inlet 312, the testing device includes a test box 10 and a suction assembly 20 The test box 10 is used to connect the semi-finished electronic cigarette 30, and a test chamber 11 is provided in the test box 10; when the test box 10 is connected to the semi-finished electronic cigarette 30, the test chamber 11 is connected to the installation chamber 311; the suction component 20 is connected to the test box 10, and is used to suck the gas in the test chamber 11; wherein, the suction component 20 sucks the gas in the test chamber 11, which can cause the pressure change of the microphone chamber 313 and trigger the microphone component 33 to start, and the indicator light can sense the start of the microphone component 33 and light up.

[0042] In this embodiment, by setting the test box 10 to simulate the shell of the electronic cigarette, constructing the test chamber 11 as a closed chamber to simulate the whole machine environment of the electronic cigarette, the suction component 20 can suck the gas in the test chamber 11. When the microphone assembly 33 is installed correctly or the air inlet 312 is of appropriate size, the microphone assembly 33 can sense the pressure change in the microphone chamber 313 and start and trigger the indicator light to light up, indicating that the quality of the electronic cigarette semi-finished product 30 is relatively good. When the microphone assembly 33 is installed incorrectly or there are problems such as flashing and blocking of the air inlet 312, the pressure change in the microphone chamber 313 is small or even unable to produce a pressure change, and the microphone assembly 33 cannot sense the pressure change in the microphone chamber 313 and start, indicating that the quality of the electronic cigarette semi-finished product 30 is poor. The test device of this embodiment has a simple structure, can effectively identify the unqualified electronic cigarette semi-finished product 30, and the test steps are simple and efficient, can quickly and accurately screen out the electronic cigarette semi-finished product 30 with poor process, and timely feedback to the production stage for timely adjustment.

[0043] In one embodiment, the test box 10 has a first connection port 12 formed at one end of the test cavity 11 , and the first connection port 12 is interference-connected with the bottom shell 31 .

[0044] like Figure 5 and Figure 6 As shown, in one embodiment, the test box 10 is an integrated structure made of a flexible material, and the test box 10 is provided with a sealing rib 14 around the inner wall of the first connection port 12, so that the caliber of part of the first connection port 12 is smaller than the outer contour of the part where the bottom shell 31 and the test box 10 are connected. In this embodiment, the test box 10 is 50° silicone and is integrally formed by injection molding, so that the test box 10 has good air tightness. The first connection port 12 is an oval hole opened on the upper surface of the test box 10 and adapted to the shape of the bottom shell 31. Two annular sealing ribs 14 are provided along the inner wall of the first connection port 12. The caliber of the sealing rib 14 is smaller than the outer contour of the bottom shell 31. When the bottom shell 31 is connected to the test box 10, the sealing rib 14 can be deformed and squeezed toward the test box 10, ensuring interference connection between the bottom box and the test box 10 and having good sealing. It is understandable that the test box 10 can also be made of flexible materials such as rubber. The number of sealing ribs 14 can be adjusted according to the quantity.

[0045] In another embodiment, the test box 10 includes a box body and a sealing ring, and the box body is provided with a first connection port 12; the sealing ring is installed at the first connection port 12, and the diameter of the sealing ring is smaller than the outer contour of the portion where the bottom shell 31 and the test box 10 are connected. In this embodiment, the box body can be made of metal or plastic, and the sealing ring is made of rubber or silicone, and the sealing ring is embedded in the first connection port 12 by a process such as clamping or gluing. Among them, the sealing ring is an annular sealing ring, and its diameter is smaller than the outer contour of the bottom shell 31, which can ensure interference connection between the bottom shell 31 and the test box 10 and good sealing.

[0046] In one embodiment, a second connection port 13 connected to the test cavity 11 is provided at one end of the test box 10 away from the first connection port 12, and the second connection port 13 is used to connect the suction assembly 20. In this embodiment, the second connection port 13 is a circular through hole penetrating the lower surface of the test box 10, and the suction assembly 20 can be directly connected to the test cavity 11 through the second connection port 13, and the gas in the test cavity 11 can be conveniently and quickly extracted, so that the air pressure in the test cavity 11 reaches a preset pressure, and then the quality of the semi-finished electronic cigarette 30 is quickly tested to be qualified.

[0047] like Figure 2-4 As shown, in one embodiment, the electronic cigarette semi-finished product 30 also includes a circuit board 34 and a power supply component 32 connected to the circuit board 34, the microphone component 33 separates the microphone cavity 313 into a first cavity 3131 and a second cavity 3132, the first cavity 3131 is connected to the installation cavity 311, the circuit board 34 is connected to the bottom shell 31 and encloses the second cavity 3132, and the microphone component 33 can sense the pressure difference between the first cavity 3131 and the second cavity 3132 and start; when the test box 10 is connected to the bottom shell 31, the power supply component 32 is accommodated in the test cavity 11. In this embodiment, the power supply component 32 is connected to the circuit board 34, and can supply power to the microphone component 33 and the indicator light. In addition, the power supply component 32 is also used to supply power to the atomization core (not shown) and other components that form the whole machine with the electronic cigarette semi-finished product 30. A power interface (not shown) is also installed on the bottom shell 31, and the power interface can be connected to a power source to supply power to the power supply component 32.

[0048] Among them, for the electronic cigarette semi-finished product 30 with relatively good quality, since the first cavity 3131 is connected with the installation cavity 311, when the suction component 20 sucks the gas in the test cavity 11, the gas in the installation cavity 311 connected with the test cavity 11 and the first cavity 3131 can be extracted by the suction component 20, thereby causing the air pressure in the first cavity 3131 to decrease, and the second cavity 3132 is a closed cavity formed by the circuit board 34 and the bottom shell 31, and the air pressure inside it remains unchanged, thereby generating a pressure difference between the first cavity 3131 and the second cavity 3132. When the generated pressure difference reaches the pressure difference threshold sensed by the microphone component 33, the microphone component 33 can be started and sensed by the indicator light. As for the electronic cigarette semi-finished product 30 of poor quality, due to the wrong installation position of the microphone assembly 33, the second cavity 3132 cannot form a closed cavity, and the pressure difference cannot be generated between the first cavity 3131 and the second cavity 3132; or due to the problem of flashing and hole blockage in the air inlet 312, the pressure difference between the first cavity 3131 and the second cavity 3132 cannot reach the pressure difference threshold, and the microphone cannot be driven to start.

[0049] like Figure 7As shown, in one embodiment, the suction assembly 20 includes a negative pressure generator 22 for generating suction and a suction housing 21. The suction housing 21 is provided with a suction nozzle 211 connected to the negative pressure generator 22. The suction nozzle 211 is used to connect the test box 10. The negative pressure generator 22 can suck the gas in the test chamber 11 through the suction nozzle 211. In this embodiment, the negative pressure generator 22 uses its internal nozzle (not shown) to spray compressed air at high speed, forming a jet at the nozzle outlet, generating a suction flow, and under the suction effect, the air around the nozzle outlet is continuously sucked away, so that the pressure in the test chamber 11 connected to the negative pressure generator 22 drops below the atmospheric pressure, forming a certain vacuum. The negative pressure generator 22 is installed in the suction housing 21, and the suction housing 21 is provided with a suction nozzle 211 extending from the inside of the shell to the outside of the shell. The suction nozzle 211 can be connected to the nozzle of the negative pressure generator 22 through a rubber hose, so that the negative pressure generator 22 is connected to the test chamber 11 of the test box 10. Among them, the suction nozzle 211 protrudes from the outer surface of the suction shell 21 and is exposed outwardly. When testing the semi-finished electronic cigarette 30, the test box 10 can be connected to the semi-finished electronic cigarette 30 first, and then the second connection port 13 of the test box 10 can be connected to the suction nozzle 211, which is convenient for quick installation and disassembly of the semi-finished electronic cigarette 30 to improve testing efficiency.

[0050] In one embodiment, the suction assembly 20 further includes a suction adjustment member 23 and a negative pressure display sensor 24. The suction adjustment member 23 is used to control the negative pressure generator 22 to generate suction at a preset suction value; the negative pressure display sensor 24 is used to sense and display the suction value adjusted by the suction adjustment member 23. In this embodiment, the suction adjustment member 23 can adjust the suction efficiency of the negative pressure generator 22 by controlling the power of the negative pressure generator 22, thereby realizing the control of the suction of the negative pressure generator 22. An indication panel (not shown) corresponding to the negative pressure generator 22 is provided on the suction housing 21, and the indication panel is provided with a corresponding control knob (not shown). The suction adjustment member 23 can be adjusted to a corresponding gear selection by rotating the control knob to realize the suction control of the negative pressure generator 22. The negative pressure display sensor 24 is provided with a corresponding display panel (not shown), which can measure and display the suction of the negative pressure generator 22.

[0051] In one embodiment, the suction assembly 20 further includes a time-delay output element 25 , which is used to control the duration of the suction force generated by the negative pressure generator 22 .

[0052] In one embodiment, the suction housing 21 is further provided with a power connection socket 27, and the power connection socket 27 is connected to a power module 26, and the power module 26 is used to control the power on and off of the negative pressure generator 22. In this embodiment, the suction assembly 20 can be powered by plugging a power cord into the power connection socket 27.

[0053] The testing device of this embodiment can test the semi-finished electronic cigarette 30 by the following testing method:

[0054] Step S100: adjusting the suction of the negative pressure generator 22 to -1.5 KPa as a preset negative pressure value through the suction adjustment member 23;

[0055] Step S200: The bottom shell 31 of the semi-finished electronic cigarette 30 is connected to the first connection port 12 of the test box 10 by interference fit, and the second connection port 13 of the test box 10 is connected to the suction nozzle 211 of the suction assembly 20;

[0056] Step S300: Start the switch of the suction assembly 20, so that the negative pressure generator 22 is powered and generates a suction force of 0.2-2.5Kpa;

[0057] Step S400: Setting the working time of the negative pressure generator 22 through the delay output component 25;

[0058] Step S500: Observe whether the indicator light of the semi-finished electronic cigarette 30 is on; if it is on, it indicates that the semi-finished electronic cigarette 30 is qualified; if it is not on, it indicates that the finished electronic cigarette tray is unqualified.

[0059] It is understandable that the above-mentioned preset negative pressure value and suction force value may be changed with different models of the semi-finished electronic cigarette 30 .

[0060] In summary, the testing device of this embodiment has a simple structure and can effectively identify unqualified electronic cigarette semi-finished products 30. The testing steps are simple and efficient, and can quickly and accurately screen out electronic cigarette semi-finished products 30 with poor manufacturing processes, and provide timely feedback to the production stage for timely adjustment.

[0061] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A testing device for testing a semi-finished electronic cigarette (30), wherein the semi-finished electronic cigarette (30) comprises a bottom shell (31), a microphone assembly (33) and an indicator light for sensing the activation of the microphone assembly (33), wherein the bottom shell (31) is provided with an air inlet (312), a microphone cavity (313) and an installation cavity (311), wherein the microphone assembly (33) is accommodated in the microphone cavity (313), and the installation cavity (311) is respectively connected to the microphone cavity (313) and the air inlet (312), wherein: The testing device comprises: A test box (10) is used to connect the semi-finished electronic cigarette product (30), wherein a test cavity (11) is provided in the test box (10); when the test box (10) is connected to the semi-finished electronic cigarette product (30), the test cavity (11) is connected to the installation cavity (311); A suction assembly (20), connected to the test box (10), and used for sucking gas in the test chamber (11); The suction component (20) sucks the gas in the test chamber (11), which can cause a pressure change in the microphone chamber (313) and trigger the microphone component (33) to start, and the indicator light can sense the start of the microphone component (33) and light up.

2. The testing device according to claim 1, characterized in that: The test box (10) is formed with a first connection port (12) at one end opening of the test cavity (11), and the first connection port (12) is interference-connected with the bottom shell (31).

3. The testing device according to claim 2, characterized in that: The test box (10) is an integrated structure made of a flexible material. The test box (10) is provided with a sealing rib (14) around the inner wall of the first connection port (12), so that a portion of the first connection port (12) has a smaller diameter than the outer contour of a portion where the bottom shell (31) and the test box (10) are connected.

4. The testing device according to claim 2, characterized in that: The test kit (10) comprises: The box body is provided with the first connecting port (12); A sealing ring is installed at the first connection port (12), and the diameter of the sealing ring is smaller than the outer contour of the portion where the bottom shell (31) and the test box (10) are connected.

5. The testing device according to any one of claims 2 to 4, characterized in that: A second connection port (13) communicating with the test cavity (11) is provided at one end of the test box (10) away from the first connection port (12), and the second connection port (13) is used for connecting to the suction assembly (20).

6. The testing device according to claim 1, characterized in that: The electronic cigarette semi-finished product (30) further comprises a circuit board (34) and a power supply assembly (32) connected to the circuit board (34); the microphone assembly (33) divides the microphone cavity (313) into a first cavity (3131) and a second cavity (3132); the first cavity (3131) is connected to the installation cavity (311); the circuit board (34) is connected to the bottom shell (31) and encloses the second cavity (3132); the microphone assembly (33) can sense the pressure difference between the first cavity (3131) and the second cavity (3132) and start; when the test box (10) is connected to the bottom shell (31), the power supply assembly (32) is accommodated in the test cavity (11).

7. The testing device according to claim 1, characterized in that: The suction assembly (20) comprises: A negative pressure generator (22) for generating suction; The suction shell (21) is provided with a suction nozzle (211) connected to the negative pressure generator (22), the suction nozzle (211) is used to connect to the test box (10), and the negative pressure generator (22) can suck the gas in the test cavity (11) through the suction nozzle (211).

8. The testing device according to claim 7, characterized in that: The suction assembly (20) further comprises: A suction force adjustment member (23), used for controlling the negative pressure generator (22) to generate suction force at a preset suction force value; The negative pressure display sensor (24) is used to sense and display the suction value adjusted by the suction adjustment member (23).

9. The testing device according to claim 7, characterized in that: The suction assembly (20) further comprises a time-delay output element (25), wherein the time-delay output element (25) is used to control the duration of the suction force generated by the negative pressure generator (22).

10. The testing device according to any one of claims 7 to 9, characterized in that: The suction housing (21) is also provided with a power connection socket (27), and the power connection socket (27) is connected to a power module (26), and the power module (26) is used to control the power on and off of the negative pressure generator (22).

Images