Sensor hand-held power supply test box

Abstract

The utility model relates to the technical field of sensor testing, in particular to a sensor handheld power supply test box, which comprises a shell, a circuit board, a battery and a display part, and is characterized in that the shell comprises a first shell and a second shell, the second shell is provided with a mounting block, the first shell is provided with a mounting groove for embedding the mounting block, and the mounting block is provided with an elastic limiting block; a limiting groove allowing the elastic limiting block to be embedded is formed in the side wall of the mounting groove, a first limiting assembly, a second limiting assembly and a third limiting assembly are arranged in an inner cavity of the first shell, the second limiting assembly and the inner wall of the containing space form a first cavity allowing a battery to be placed, and the third limiting assembly and the inner wall of the containing space form a second cavity allowing a display part to be placed; according to the product assembly, on one hand, the assembly process of the test box is simplified by adopting a screw-free design, the product yield and the production efficiency are improved, on the other hand, the internal space of the test box body is effectively utilized through the segmentation area, the overall structure is more compact, and assembly is simple and reliable.

Description

Technical Field

[0001] The present application relates to the technical field of sensor testing, and in particular to a sensor handheld power supply testing box. Background Art

[0002] A test box is an instrument used to test and calibrate analog signals. The test box can receive analog signals from sensors, instruments or other analog devices as input, and can output analog signals for testing and calibrating other devices. Many test boxes on the market currently require special screws for fixing and sealing in order to ensure that the protection of electrical components meets various safety certification specifications. The use of screw locking has the following defects:

[0003] First, the use of screws for sealing and fixing may require a more complicated installation process, including pre-processing holes, selecting appropriate screws and tightening torque, and may require professional tools and skills to ensure the correctness and reliability of the fixation. Secondly, the screws may damage the sealing material during the fixing process, especially for soft sealing materials (such as rubber or silicone), the sharp edges of the screws may cut or squeeze the sealing material, causing damage to the seal and increasing the defective rate of the product. Furthermore, the use of screws will increase the number of parts in the product, increase the manpower of the workstation, and also increase the burden on the enterprise. The existence of these shortcomings not only fails to improve the yield rate of the product, but also fails to meet the requirements of rapid production. Utility Model Content

[0004] In order to simplify the assembly process of the test box and improve the product yield and production efficiency, the present application provides a sensor handheld power supply test box.

[0005] The present application provides a sensor handheld power supply test box, which adopts the following technical solution:

[0006] A sensor handheld power supply test box comprises a shell and a circuit board, a battery and a display element arranged in an inner cavity of the shell, wherein the shell comprises a first shell and a second shell for covering the first shell, a mounting block is arranged on a side of the second shell close to the first shell, the first shell is provided with a mounting groove for the mounting block to be embedded, an elastic limiting block is arranged on a side of the mounting block close to the side wall of the mounting groove, and the side wall of the mounting groove is provided with a limiting groove for the elastic limiting block to be embedded, a first limiting component for supporting the circuit board is arranged in the inner cavity of the first shell, so that the circuit board and the inner wall of the first shell constitute an accommodating space for placing components, a second limiting component is arranged on the circuit board, so that the second limiting component and the inner wall of the accommodating space constitute a first chamber for placing the battery, the second limiting component is used to limit the position of the battery, a third limiting component is arranged in the accommodating space, so that the third limiting component and the inner wall of the accommodating space constitute a second chamber for placing the display element, and the third limiting component is used to limit the position of the display element.

[0007] By adopting the above technical scheme, the second shell is assembled with the first shell by embedding the mounting block in the mounting groove. In order to improve the stability of the assembly of the first shell and the second shell, an elastic limit block is fixed on the mounting block. By embedding the elastic limit block in the limit groove, the movement between the first shell and the second shell is limited so that the second shell is fixed on the first shell. The inner cavity is then divided into different areas by the first limit assembly, the second limit assembly and the third limit assembly, which is beneficial to the effective utilization of the internal space of the shell and the mutual isolation of components. For example, the first chamber is for placing the battery, and the second chamber is for placing the display, so that the internal components of the test box do not interfere with each other. The assembly of the product of the present application simplifies the assembly process of the test box by adopting a screwless design, thereby improving the product yield and production efficiency. On the other hand, the internal space of the test box body is effectively utilized by dividing the area, and the overall structure is more compact, and the assembly is simple and reliable.

[0008] Optionally, the first limiting assembly includes a first supporting column arranged in the first shell cavity and used to support the circuit board, a positioning column arranged in the first shell cavity, and a positioning hole arranged on the circuit board and for the positioning column to pass through.

[0009] By adopting the above technical solution, the first support column is used to support the circuit board and keep it stable, the positioning column is used to help position the circuit board to ensure that it is placed correctly, the positioning hole is located on the circuit board and corresponds to the positioning column, and the positioning column passes through the circuit board through the positioning hole, further ensuring that the circuit board is accurately positioned inside the housing.

[0010] Optionally, the second limiting assembly includes a limiting block disposed in the first chamber, and an avoidance hole disposed on the circuit board and for the battery to pass through, wherein the avoidance hole is used to limit and fix the battery.

[0011] By adopting the above technical solution, a first chamber for placing the battery is formed by the limit block and the inner wall of the accommodating space. The function of the limit block is to provide a fixed point for correctly positioning the battery. The avoidance hole is located on the circuit board and allows the battery to pass through, so that the avoidance hole limits the position of the battery. The cooperation between the limit block and the avoidance hole ensures the correct position of the battery in the outer shell and prevents it from moving or shaking, thereby protecting the stability and safety of the test box.

[0012] Optionally, the third limiting assembly includes a second supporting column arranged in the second cavity and used to support the display element, a limiting column arranged in the second cavity, and a limiting hole arranged on the display element and for the limiting column to be embedded, and the limiting column is used to support the circuit board away from the side of the bottom wall of the first shell.

[0013] By adopting the above technical solution, at least two limit columns are provided, and the two limit columns are diagonally arranged so that the limit columns divide the range of the second chamber. The limit holes on the display component are sleeved on the limit columns. The second support column is used to support the display component to ensure the stability of the display component. The function of the limit column is to limit the movement of the display component and ensure that the display component is fixed in the correct position. The cooperation of the second support column, the limit column and the limit hole ensures the stable support and accurate positioning of the display component in the second chamber, thereby protecting the display component and the circuit board and ensuring the normal operation of the test box.

[0014] Optionally, the display component includes a driving chip disposed in the second cavity and electrically connected to the circuit board, and a display screen disposed on the outer wall of the shell and communicatively connected to the driving chip.

[0015] By adopting the above technical solution, the function of the driver chip is to control the display screen so that it can correctly display images or content. The driver chip is connected to the circuit board to receive instructions and data from the circuit board, and then convert them into signals suitable for the display screen. The display screen is located on the outer wall of the shell and is connected to the driver chip through communication. The display screen is used to display images, texts or other content. The display screen receives signals from the driver chip and generates corresponding displays on the screen based on these signals.

[0016] Optionally, the first shell inner wall and the second shell inner wall are both provided with a plurality of reinforcing ribs.

[0017] By adopting the above technical solution, a number of reinforcing ribs are fixed to the inner wall of the first shell and the inner wall of the second shell. The reinforcing ribs, as structural reinforcement components, are usually some solid materials or structures arranged along the surface inside the shell. The function of the reinforcing ribs is to increase the strength and stability of the shell. Such a design can ensure that the shell is not easily deformed or damaged when subjected to external pressure or vibration, while also providing better support and protection for internal components.

[0018] Optionally, it further includes a power button arranged on the outer wall of the shell, and an anti-sliding block is arranged on the side of the power button away from the shell.

[0019] By adopting the above technical solution, an anti-sliding block is attached to one side of the power button. The purpose of this design is to make it easier for users to touch the power button, and the presence of the anti-sliding block can provide better grip and control to prevent fingers from slipping or making mistakes when pressing the power button.

[0020] Optionally, the outer wall of the shell is provided with an anti-slip groove.

[0021] By adopting the above technical solution, the shell is provided with anti-skid grooves, which are used to increase the user's grip when holding the device and reduce the risk of accidental sliding or falling. These anti-skid grooves are usually designed as some longitudinal or transverse indentations, which can increase the friction between the fingers and the surface of the shell and provide a more secure grip. In this way, the user can hold the device more stably when using it, reducing the possibility of accidental damage or falling due to loose holding.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The second shell is assembled with the first shell by embedding the mounting block in the mounting groove. In order to improve the stability of the assembly of the first shell and the second shell, an elastic limit block is fixed on the mounting block. By embedding the elastic limit block in the limit groove, the movement between the first shell and the second shell is limited so that the second shell is fixed on the first shell. Then, the inner cavity is divided into different areas by the first limit assembly, the second limit assembly and the third limit assembly, which is conducive to the effective use of the internal space of the shell and the mutual isolation of the components. For example, the first chamber is for placing the battery, and the second chamber is for placing the display component, so that the internal components of the test box do not interfere with each other. The assembly of the product of the present application simplifies the assembly process of the test box by adopting a screwless design, thereby improving the product yield and production efficiency. On the other hand, the internal space of the test box body is effectively utilized by dividing the area, and the overall structure is more compact, and the assembly is simple and reliable.

[0024] 2. The first support column is used to support the circuit board and keep it stable. The positioning column is used to help position the circuit board to ensure that it is correctly placed. The positioning hole is located on the circuit board and corresponds to the positioning column. The positioning column passes through the circuit board through the positioning hole to further ensure that the circuit board is accurately positioned inside the housing.

[0025] 3. The first chamber for placing the battery is formed by the limit block and the inner wall of the accommodating space. The function of the limit block is to provide a fixed point to correctly position the battery. The avoidance hole is located on the circuit board and allows the battery to pass through, so that the avoidance hole limits the position of the battery. The cooperation of the limit block and the avoidance hole ensures the correct position of the battery in the shell and prevents it from moving or shaking, thereby protecting the stability and safety of the test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is an exploded view of the test box in an embodiment of the present application;

[0028] Figure 3 is an exploded view of the first shell and the second shell in the embodiment of the present application;

[0029] Figure 4 is an exploded view of the first housing and the circuit board in the embodiment of the present application;

[0030] Figure 5 is an exploded view of the first housing and the battery in the embodiment of the present application;

[0031] Figure 6 It is an exploded view of the first shell and the display component in the embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Shell; 2. Circuit board; 3. Battery; 4. Display element; 5. First shell; 6. Second shell; 7. Mounting block; 8. Mounting slot; 9. Elastic limit block; 10. Limit slot; 11. First limit assembly; 12. Second limit assembly; 13. First chamber; 14. Third limit assembly; 15. Second chamber; 16. First support column; 17. Positioning column; 18. Positioning hole; 19. Limit block; 20. Avoidance hole; 21. Second support column; 22. Limit column; 23. Limit hole; 24. Driver chip; 25. Display screen; 26. Reinforcement rib; 27. Power button; 28. Anti-slip block; 29. ​​Anti-slip slot. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] The embodiment of the present application discloses a sensor handheld power supply test box.

[0039] Reference Figure 1 and Figure 2A sensor handheld power supply test box includes a shell 1, a circuit board 2, a battery 3 and a display element 4, a power button 27, and an anti-skid groove 29, wherein the circuit board 2, the battery 3 and the display element 4 are all installed in the inner cavity of the shell 1, the power button 27 is installed on the outer wall of the shell 1, and an anti-slip block 28 is attached to one side of the power button 27. The purpose of this design is to make it easier for users to touch the power button 27, and the presence of the anti-slip block 28 can provide better grip and control to prevent fingers from slipping or making mistakes when pressing the power button 27; in order to increase the friction between the fingers and the surface of the shell 1, an anti-slip groove 29 is opened on the outer wall of the shell 1. The anti-slip groove 29 is used to increase the grip of the user when holding the device, reduce the risk of accidental sliding or falling, and the user can hold the test box more stably when using the device, reducing the possibility of accidental damage or falling due to loose holding.

[0040] Specifically, the housing 1 is handheld in design, which is easy to carry and use. The top of the housing 1 has a power port, an output port, a ground port and a teaching port. The power button 27 is set on one side of the housing 1, and the side of the housing 1 away from the power button 27 is provided with a teaching button, a mode button, a USB input port, and a USB output port; the power button 27 is used to control the power on and off of the test box, and the teaching button is used to set the control output voltage. When the teaching button is pressed, the teaching terminal will output a high-level voltage, and the voltage logic is consistent with the brown terminal voltage. When the button is released, the teaching terminal will output a low-level voltage; the mode button is used to switch different test modes, which can be switched between three modes: current, voltage, and switch; the USB input port is used to connect an external power supply to charge the battery 3, and the USB output port is used to connect a sensor to provide a test power supply for the sensor.

[0041] In current mode, the test box will be used to test the current output of the sensor. This means that it can measure and record the current value passing through the sensor. In voltage mode, the test box is used to measure the voltage output of the sensor. This means that it can measure and record the voltage value output by the sensor. In switch mode, the test box is used to detect the switch state of the sensor. This means that it can detect whether the digital signal output by the sensor is in an open or closed state. The test box has a memory function that can store the current test mode. When the test box is restarted, it will remember the last test mode and automatically restore to that mode. This function is very convenient for users because they don’t have to reset the mode of the test box every time, especially when they need to test different types of sensors continuously.

[0042] The above describes the overall functional structure of the test box. For ease of understanding, the assembly structure of the test box is described below:

[0043] Reference Figure 3The housing 1 is composed of a first housing 5 and a second housing 6. The second housing 6 is used to cover the first housing 5. The specific installation structure is as follows: a mounting block 7 is fixed on the side of the second housing 6 close to the first housing 5. A mounting groove 8 for the mounting block 7 to be embedded is provided on the side of the second housing 6 close to the mounting block 7. The mounting groove 8 is used for the mounting block 7 to be embedded to ensure the correct alignment between the first housing 5 and the second housing 6. In order to improve the assembly stability of the first housing 5 and the second housing 6, an elastic limit block 9 is fixed on the side of the mounting block 7 close to the side wall of the mounting groove 8. A limit groove 10 for the elastic limit block 9 to be embedded is provided on the side wall of the mounting groove 8. The elastic limit block 9 cooperates with the limit groove 10 to ensure a stable connection between the components of the housing 1.

[0044] In one embodiment, a plurality of reinforcing ribs 26 are fixed to the inner walls of the first shell 5 and the second shell 6. The reinforcing ribs 26, as structural reinforcement components, are usually some solid materials or structures arranged along the surface inside the shell 1. The function of the reinforcing ribs 26 is to increase the strength and stability of the shell 1. Such a design can ensure that the shell 1 is not easily deformed or damaged when subjected to external pressure or vibration, while also providing better support and protection for internal components.

[0045] like Figure 4 and Figure 5 As shown, in order to effectively utilize the internal space of the test box body, the overall structure is more compact, and the assembly is simple and reliable. A first limiting component 11, a second limiting component 12 and a third limiting component 14 are installed in the inner cavity of the first shell 5, wherein the first limiting component 11 is used to support the circuit board 2, and forms a receiving space on the inner wall of the first shell 5 for placing components (display 4, battery 3, etc.); the second limiting component 12 is located on the circuit board 2, and cooperates with the inner wall of the receiving space to form a first chamber 13 for placing the battery 3, and defines the position of the battery 3; the third limiting component 14: is located in the receiving space, cooperates with the inner wall of the receiving space, forms a second chamber 15 for placing the display 4, and defines the position of the display 4; the structure of the housing 1 and the installation method of the internal components are described above, ensuring the correct alignment and firm connection between the components, and providing appropriate space to accommodate different components, such as the circuit board 2, the battery 3 and the display 4, and the first limiting component 11, the second limiting component 12 and the third limiting component 14 are described below respectively:

[0046] like Figure 4As shown, the first limiting assembly 11 includes a first support column 16, a positioning column 17 and a positioning hole 18. The first support column 16 is installed in the inner cavity of the first shell 5 and is used to support the circuit board 2. The positioning column 17 is installed in the inner cavity of the first shell 5. The positioning hole 18 is opened on the circuit board 2 and is passed through for positioning. The first support column 16 is used to support the circuit board 2 and keep it stable. The positioning column 17 is used to help position the circuit board 2 to ensure that it is correctly placed. The positioning hole 18 is located on the circuit board 2 and corresponds to the positioning column 17. The positioning column 17 passes through the circuit board 2 through the positioning hole 18, further ensuring that the circuit board 2 is accurately positioned inside the shell 1, and the first limiting assembly 11 lifts the circuit board 2 so that the circuit board 2 has heat dissipation space on both sides of the shell 1, thereby extending the life of the circuit board 2.

[0047] like Figure 5 As shown, the second limiting assembly 12 includes a limiting block 19 and an avoidance hole 20. The limiting block 19 is installed in the first chamber 13. The avoidance hole 20 is opened on the circuit board 2. The limiting block 19 and the inner wall of the accommodating space form a first chamber 13 for placing the battery 3. The limiting block 19 provides a fixed point for correctly positioning the battery 3. The avoidance hole 20 is located on the circuit board 2 and allows the battery 3 to pass through, so that the avoidance hole 20 limits the position of the battery 3. The cooperation between the limiting block 19 and the avoidance hole 20 ensures the correct position of the battery 3 in the outer casing 1 and prevents it from moving or shaking, thereby protecting the stability and safety of the test box.

[0048] like Figure 6As shown, the third limiting component 14 includes a second support column 21, a limiting column 22 and a limiting hole 23, and the display element 4 includes a driving chip 24 and a display screen 25. The function of the driving chip 24 is to control the display screen 25 so that it can correctly display images or content. The driving chip 24 is connected to the circuit board 2 to receive instructions and data from the circuit board 2, and then convert them into signals suitable for the display screen 25. The display screen 25 is located on the outer wall of the shell 1 and is connected to the driving chip 24 through communication. The display screen 25 is used to display images, texts or other content. The display screen 25 receives signals from the driving chip 24 and generates corresponding displays on the screen according to these signals; wherein the second supporting column 21 is fixed in the second chamber 15 and is used to support the display element 4, the limiting column 22 is fixed in the second chamber 15, and the limiting hole 23 is opened At least two limit columns 22 are arranged on the driving chip 24 in the display part 4, and the two limit columns 22 are arranged diagonally so that the limit columns 22 divide the range of the second chamber 15. The limit holes 23 on the display part 4 are sleeved on the limit columns 22. The second support columns 21 are used to support the display part 4 to ensure the stability of the display part 4. The function of the limit columns 22 is to limit the movement of the display part 4 and ensure that the display part 4 is fixed in the correct position. The cooperation of the second support columns 21, the limit columns 22 and the limit holes 23 ensures the stable support and accurate positioning of the display part 4 in the second chamber 15, thereby protecting the display part 4 and the circuit board 2 and ensuring the normal operation of the test box. It should be noted that the height of the limit columns 22 is consistent with the height of the first support columns 16, so that the limit columns 22 can support the circuit board 2.

[0049] The implementation principle of a sensor handheld power supply test box in an embodiment of the present application is as follows: the second shell 6 is assembled with the first shell 5 by embedding the mounting block 7 into the mounting groove 8. In order to improve the stability of the assembly of the first shell 5 and the second shell 6, an elastic limit block 9 is fixed on the mounting block 7. By embedding the elastic limit block 9 into the limit groove 10, the movement between the first shell 5 and the second shell 6 is limited so that the second shell 6 is fixed on the first shell 5. The inner cavity is divided into different areas by the first limit component 11, the second limit component 12 and the third limit component 14, which is beneficial to the effective use of the internal space of the shell 1 and the mutual isolation of the components. For example, the first chamber 13 is for placing the battery 3, and the second chamber 15 is for placing the display 4, so that the internal components of the test box do not interfere with each other. The assembly of the product of the present application simplifies the assembly process of the test box by adopting a screwless design, thereby improving the product yield and production efficiency. On the other hand, the internal space of the test box body is effectively utilized by dividing the area, and the overall structure is more compact, and the assembly is simple and reliable.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sensor handheld power supply test box, characterized in that: The invention comprises a housing (1) and a circuit board (2), a battery (3) and a display element (4) arranged in the inner cavity of the housing (1); the housing (1) comprises a first housing (5) and a second housing (6) for covering the first housing (5); a mounting block (7) is arranged on the side of the second housing (6) close to the first housing (5); the first housing (5) is provided with a mounting groove (8) for the mounting block (7) to be embedded; an elastic limiting block (9) is arranged on the side of the mounting block (7) close to the side wall of the mounting groove (8); a limiting groove (10) is arranged on the side wall of the mounting groove (8) for the elastic limiting block (9) to be embedded; the inner cavity of the first housing (5) is provided with a second housing (6) for supporting the circuit board (2); A limiting assembly (11) is provided so that the circuit board (2) and the inner wall of the first shell (5) form a storage space for placing components; a second limiting assembly (12) is provided on the circuit board (2) so that the second limiting assembly (12) and the inner wall of the storage space form a first chamber (13) for placing the battery (3); the second limiting assembly (12) is used to limit the position of the battery (3); a third limiting assembly (14) is provided in the storage space so that the third limiting assembly (14) and the inner wall of the storage space form a second chamber (15) for placing the display element (4); the third limiting assembly (14) is used to limit the position of the display element (4).

2. A sensor handheld power supply test box according to claim 1, characterized in that: The first limiting assembly (11) comprises a first supporting column (16) arranged in the inner cavity of the first shell (5) and used to support the circuit board (2), a positioning column (17) arranged in the inner cavity of the first shell (5), and a positioning hole (18) arranged on the circuit board (2) and for the positioning column (17) to pass through.

3. A sensor handheld power supply test box according to claim 2, characterized in that: The second limiting assembly (12) comprises a limiting block (19) arranged in the first chamber (13), and an avoidance hole (20) arranged on the circuit board (2) and for the battery (3) to pass through, the avoidance hole (20) being used to limit and fix the battery (3).

4. A sensor handheld power supply test box according to claim 2, characterized in that: The third limiting assembly (14) comprises a second supporting column (21) arranged in the second chamber (15) and used to support the display element (4), a limiting column (22) arranged in the second chamber (15), and a limiting hole (23) arranged on the display element (4) and for the limiting column (22) to be embedded, wherein the limiting column (22) is used to support the circuit board (2) on a side away from the bottom wall of the first shell (5).

5. A sensor handheld power supply test box according to claim 4, characterized in that: The display element (4) comprises a drive chip (24) disposed in the second chamber (15) and electrically connected to the circuit board (2), and a display screen (25) disposed on the outer wall of the housing (1) and communicatively connected to the drive chip (24).

6. A sensor handheld power supply test box according to claim 1, characterized in that: The inner wall of the first shell (5) and the inner wall of the second shell (6) are both provided with a plurality of reinforcing ribs (26).

7. A sensor handheld power supply test box according to claim 1, characterized in that: It also comprises a power button (27) arranged on the outer wall of the housing (1), and an anti-sliding block (28) is arranged on the side of the power button (27) away from the housing (1).

8. The sensor handheld power supply test box according to claim 1, characterized in that: The outer wall of the housing (1) is provided with an anti-slip groove (29).

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