Portable ladder stool test device

Abstract

The utility model discloses a portable ladder stool test device, and relates to the insulating stool test equipment technology field, the portable ladder stool test device comprises a support bench, an experiment mechanism and an adjusting mechanism, the support bench is provided with the experiment mechanism, the support bench is internally provided with a hollow connecting shaft, the connecting shaft is provided with an annular groove, the connecting shaft is rotatably connected with a connecting plate through the annular groove, and the adjusting mechanism is arranged on the connecting plate. The beneficial effects of the utility model are that: through adopting the advanced electronic circuit measurement and control principle of the touch screen, the electric push rod, the pressure sensor and the like, the accurate control of the loading test of the insulation bench is realized; the device can simulate the standing posture and position of a field user, ensures the balanced stress of the insulating stool, improves the accuracy of a test result, has an automatic control function, can automatically complete the test process, reduces manual operation errors, and improves the test efficiency and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating stool test equipment, in particular to a portable ladder stool test device. Background Art

[0002] With the continuous development of the power industry, the importance of electrical safety tools has become increasingly prominent. As a key component of electrical safety tools, the performance and quality of insulating stools are directly related to the safety of electrical operation personnel. According to Article 5.4.4 of the DL / T1476-2023 Preventive Test Regulations for Electrical Safety Tools, insulating stools need to be regularly subjected to static load tests to ensure their safety and reliability.

[0003] The disadvantages of the existing technology are that the static load test of insulating stools generally adopts the traditional method of manually moving and placing weights. This method is difficult to accurately simulate the posture and position of on-site users when standing, resulting in uneven stress distribution on the insulating stools, and it is difficult to accurately control the weight addition and static pressure time; this not only affects the accuracy of the test results, but also may lead to incorrect evaluation of the performance of insulating stools, thus bringing potential safety risks to users; secondly, the traditional test method is inefficient, requiring a large amount of manpower and time for the moving and adjustment of weights, increasing the complexity and cost of the test; in addition, due to the large weight of the weights themselves, there are also safety hazards during the handling process, increasing the possibility of accidents. Summary of the Utility Model

[0004] A portable ladder stool test device proposed by the utility model solves the existing problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A portable ladder stool test device includes a support platform, an experimental mechanism, and an adjustment mechanism. The support platform is provided with an experimental mechanism. A hollow connecting shaft is provided inside the support platform. An annular groove is provided on the connecting shaft. The connecting shaft is rotationally connected to the connecting plate through the annular groove. The connecting plate is connected to the adjustment mechanism, and the adjustment mechanism can adapt to insulating stools of different sizes and heights.

[0006] Preferably, the experimental mechanism includes a motor, an electric push rod, a shoe mold, a pressure sensor, and a control box. The motor is provided on the surface of the support platform. The output shaft of the motor passes through the connecting shaft and is connected to the electric push rod. One end of the electric push rod is connected to the shoe mold. The shoe mold is provided with a pressure sensor. The motor and the control box are electrically connected.

[0007] Preferably, the adjusting mechanism includes a telescopic cross bar, a connecting block, a first vertical rod, a second vertical rod, positioning holes and a positioning bolt. One end of the connecting plate is connected to the telescopic cross bar, the other end of the telescopic cross bar is connected to one side of the connecting block, the bottom of the connecting block is connected to the first vertical rod, one end of the first vertical rod is sleeved inside the second vertical rod, several positioning holes are provided on the second vertical rod, and a positioning bolt is provided on the second vertical rod.

[0008] Preferably, a touch screen is provided on the control box, and a buzzer is provided on the control box.

[0009] Preferably, one end of the positioning bolt passes through the positioning hole and contacts the surface of the first vertical rod.

[0010] Preferably, a pressing plate is provided at the bottom of the second vertical rod, a protective pad is provided on the pressing plate, a mounting plate is provided on one side of the second vertical rod, and the mounting plate is connected to the universal wheel through a rotating shaft.

[0011] The beneficial effects of the present utility model are as follows: By adopting advanced electronic circuit measurement and control principles such as a touch screen, an electric push rod, and a pressure sensor, precise control of the insulation stool loading test is achieved. It can simulate the standing postures and positions of on-site users, ensure the uniform stress of the insulation stool, improve the accuracy of the test results. The device has an automatic control function, can automatically complete the test process, reduce human operation errors, and improve the efficiency and reliability of the test.

[0012] At the same time, the device is lightweight, simple to install and operate, convenient for rapid transfer and use between the customer site and the laboratory, further improving the flexibility and convenience of the test. By precisely controlling parameters such as pressure and time during the test process, potential problems of the insulation stool can be detected in a timely manner, avoiding safety risks for users during use. At the same time, the device itself also meets safety standards, reducing safety hazards during the test process. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of the present utility model.

[0014] Figure 2 is Figure 1 The enlarged structural schematic diagram at A in

[0015] Figure 3 It is the circuit schematic diagram of the present utility model.

[0016] Figure 4 It is the specific circuit diagram of the present utility model.

[0017] Figure 5 It is the test flow chart of the present utility model.

[0018] Reference numerals in the figures: 1, support platform; 2, connecting shaft; 3, annular groove; 4, connecting plate; 5, motor; 6, electric push rod; 7, shoe mold; 8, pressure sensor; 9, control box; 10, telescopic cross bar; 11, connecting block; 12, first vertical rod; 13, second vertical rod; 14, positioning hole; 15, positioning bolt; 16, touch screen; 17, buzzer; 18, pressing plate; 19, universal wheel; 20, mounting plate. Detailed implementation

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Refer to Figures 1 - 5 As shown, a portable ladder stool test device includes a support platform 1, an experimental mechanism, and an adjustment mechanism. The experimental mechanism is provided on the support platform 1. A hollow connecting shaft 2 is provided inside the support platform 1. An annular groove 3 is provided on the connecting shaft 2. The connecting shaft 2 is rotatably connected to the connecting plate 4 through the annular groove 3, and can be rotated and adjusted to ensure that the stress point is at the center of the stool surface. The connecting plate 4 is connected to the adjustment mechanism, and the adjustment mechanism can adapt to insulating stools of different sizes and heights.

[0021] The experimental mechanism includes a motor 5, an electric push rod 6, a shoe mold 7, a pressure sensor 8, and a control box 9. The motor 5 is provided on the surface of the support platform 1. The output shaft of the motor 5 passes through the connecting shaft 2 and is connected to the electric push rod 6. One end of the electric push rod 6 is connected to the shoe mold 7. The electric push rod 6 drives the shoe mold 7 to press down. The shoe mold 7 can simulate the stress surface in actual use. A pressure sensor 8 is provided on the shoe mold 7. The loading force value is collected in real time through the pressure sensor 8, and the current force value is displayed in real time on the touch screen 16 to facilitate controlling the pressure size. The motor 5 and the control box 9 are electrically connected. After each test, the control system of the control box 9 will automatically save the test data, including key parameters such as test force value, loading rate, and holding time. Through the database management system, the classification storage and management of test data are realized, which is convenient for subsequent query and analysis. A friendly user interface is provided, allowing testers to query historical test data according to conditions such as test date and test level. The query results will be displayed in the form of tables or charts, which is convenient for testers to analyze and compare data under different test conditions.

[0022] The adjusting mechanism includes a telescopic cross bar 10, a connecting block 11, a first vertical rod 12, a second vertical rod 13, positioning holes 14 and positioning bolts 15. The connecting plate 4 is connected to one end of the telescopic cross bar 10, and the other end of the telescopic cross bar 10 is connected to one side of the connecting block 11. The telescopic cross bar 10 can be an electric telescopic rod. The bottom of the connecting block 11 is connected to the first vertical rod 12. One end of the first vertical rod 12 is sleeved inside the second vertical rod 13. There are several positioning holes 14 on the second vertical rod 13, and there is a positioning bolt 15 on the second vertical rod 13, so that the height can be adjusted to adapt to insulating stools of different models and specifications. One end of the positioning bolt 15 passes through the positioning hole 14 and contacts the surface of the first vertical rod 12. There is a pressing plate 18 at the bottom of the second vertical rod 13. The insulating stool is placed on the pressing plate 18, and there is a protective pad on the pressing plate 18. There is a mounting plate 20 on one side of the second vertical rod 13. The mounting plate 20 and the universal wheel 19 are connected by a rotating shaft, making it easy to move and convenient to carry.

[0023] There is a touch screen 16 on the control box 9. The panel of the touch screen 16 provides an intuitive and easy-to-use operation interface, which is convenient for users to set test parameters and monitor the test process. The touch screen 16 is used to display key information such as the current loading force value, loading rate and holding time in real time, so that users can understand the test status at any time and ensure the accuracy and controllability of the test process. There is a buzzer 17 on the control box 9. When the holding time is reached or an abnormality occurs during the test process, the control system will issue an alarm prompt, such as a buzzer sound or screen flashing, to remind the test personnel to pay attention.

[0024] Working principle: When the device of the present utility model is in use, first click the parameter setting option on the touch screen 16, and set relevant parameters according to the test requirements. For example: the test force value is set to 1765 N, the holding time is set to 300 s, and the loading rate is set to 100 mm / min. Place the insulating stool on the pressing plate 18, and the adjusting mechanism adjusts the height to adapt to insulating stools of different models and specifications. Start the test, click the test start button, and the device starts to load the test at a constant speed. The touch screen 16 will display the current loading force value in real time. When the loading force value reaches the set value, the buzzer 17 will emit a buzzer sound to prompt. Subsequently, the instrument starts to count down for 300 s. When the countdown ends, a continuous buzzer sound will be emitted again, and the loading force will be automatically unloaded. After the test ends, the screen will display the final test force value. The test personnel make a result judgment according to the situation of the insulating stool after the test and record the current force value.

[0025] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A portable step stool test device, comprising a support platform (1), a test mechanism and an adjustment mechanism, characterized in that: The support platform (1) is provided with an experimental mechanism, the support platform (1) is provided with a hollow connecting shaft (2), the connecting shaft (2) is provided with an annular groove (3), the connecting shaft (2) and the connecting plate (4) are rotatably connected via the annular groove (3), the connecting plate (4) is connected to an adjustment mechanism, and the adjustment mechanism is a telescopic bracket structure used for placing insulating stools of different sizes and heights.

2. A portable step stool test device according to claim 1, characterized in that: The experimental mechanism comprises a motor (5), an electric push rod (6), a shoe mold (7), a pressure sensor (8) and a control box (9); a motor (5) is arranged on the surface of the support platform (1); an output shaft of the motor (5) passes through a connecting shaft (2) and is connected to the electric push rod (6); one end of the electric push rod (6) is connected to the shoe mold (7); a pressure sensor (8) is arranged on the shoe mold (7); and the motor (5) and the control box (9) are electrically connected.

3. A portable step stool test device according to claim 1, characterized in that: The adjustment mechanism comprises a telescopic cross bar (10), a connecting block (11), a first vertical bar (12), a second vertical bar (13), a positioning hole (14) and a positioning bolt (15); the connecting plate (4) is connected to one end of the telescopic cross bar (10); the other end of the telescopic cross bar (10) is connected to one side of the connecting block (11); the bottom of the connecting block (11) is connected to the first vertical bar (12); one end of the first vertical bar (12) is sleeved in the second vertical bar (13); the second vertical bar (13) is provided with a plurality of positioning holes (14); and the second vertical bar (13) is provided with a positioning bolt (15).

4. A portable step stool test device according to claim 2, characterized in that: The control box (9) is provided with a touch screen (16), and the control box (9) is provided with a buzzer (17).

5. A portable step stool test device according to claim 3, characterized in that: One end of the positioning bolt (15) passes through the positioning hole (14) and contacts the surface of the first vertical pole (12).

6. A portable step stool test device according to claim 3, characterized in that: A pressure plate (18) is provided at the bottom of the second vertical pole (13), and a protective pad is provided on the pressure plate (18). A mounting plate (20) is provided on one side of the second vertical pole (13), and the mounting plate (20) is connected to the universal wheel (19) via a rotating shaft.

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