Motor insulation resistance tester

Abstract

The utility model discloses a motor insulation resistance tester, and belongs to the technical field of insulation resistance testers. The tester mainly comprises a tester body, and the tester body is provided with a wiring port. The protection mechanism is installed on the tester body, the protection mechanism comprises an installation plate, the installation plate is installed on the tester body, and a cover plate is installed on the installation plate in a hinged mode; the mounting seat is mounted on the tester body, a spring is mounted on the mounting seat, a buckling block is mounted at one end of the spring and comprises a convex block, and concave holes are formed in the two sides of the fixing rod; the pulling and holding rod is mounted on the buckling block, and one end of the pulling and holding rod movably penetrates through the mounting seat. According to the motor insulation resistance tester, through arrangement of the mounting plate, the cover plate, the grip, the fixing rod, the concave hole, the mounting seat, the buckling block, the spring, the pulling rod and the handle, dustproof sealing is performed on the wiring port when the motor insulation resistance tester is not used, so that external dust, moisture, greasy dirt and the like are prevented from entering the wiring port.

Description

Technical Field

[0001] This application relates to the technical field of insulation resistance testers, specifically to an insulation resistance tester for motors. Background Technology

[0002] An insulation resistance tester, also known as a digital insulation resistance tester or megohmmeter, is a specialized instrument used to measure the resistance of insulating materials in electrical equipment, cables, motor windings, and other similar devices. The insulation resistance tester calculates the insulation resistance value based on Ohm's law. It applies a DC voltage to the insulating medium being tested, measures the current flowing through the medium, and then calculates the insulation resistance value.

[0003] For example, patent CN208367092U discloses an insulation resistance tester, including a body, a slider, a slot, a display panel, a first connecting rod, and a second connecting rod. This design causes the display panel to be tilted off-center from the vertical plane and perpendicular to the operator's line of sight, allowing for readings without bending over, thus improving the user experience.

[0004] When the aforementioned patented insulation resistance tester is in use, the wiring ports on the main body of the tester are exposed when not in use. This allows dust, fibers, metal shavings, and other debris from the environment to easily enter the tester through these exposed ports, accumulating on the circuit components. This can interfere with the normal operation of the circuit, reduce the instrument's measurement accuracy and stability, and may even cause short circuits between components, affecting the instrument's lifespan. Simultaneously, in humid environments, moisture can easily enter the instrument through the exposed wiring ports, causing internal components to become damp, leading to decreased insulation performance, corrosion, and other problems, thus affecting the instrument's performance and reliability, and even causing malfunctions. Therefore, it is necessary to design a motor insulation resistance tester to solve these problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a motor insulation resistance tester, which addresses the issue that, when the aforementioned patented insulation resistance tester is in use, the wiring ports on the main body of the tester are exposed when not in use. As a result, dust, fibers, metal shavings, and other debris in the environment can easily enter the tester through the exposed wiring ports, accumulating on the circuit components. This may interfere with the normal operation of the circuit, reduce the measurement accuracy and stability of the instrument, and may also cause short circuits between components, affecting the service life of the instrument. At the same time, in humid environments, moisture can easily enter the instrument through the exposed wiring ports, causing internal components to become damp, leading to problems such as decreased insulation performance and corrosion, thereby affecting the performance and reliability of the instrument, and even causing instrument malfunction.

[0007] The technical solution adopted by this application to solve its technical problem is: a motor insulation resistance tester. It mainly includes: a tester body with a wiring port; a protection mechanism mounted on the tester body, the protection mechanism including: a mounting plate mounted on the tester body, a cover plate hinged to the mounting plate; a mounting base mounted on the tester body, a spring mounted on the mounting base, a latch block mounted at one end of the spring, the latch block including a protrusion; a fixing rod mounted on the bottom of the cover plate, recesses on both sides of the fixing rod; and a pulling rod mounted on the latch block, one end of the pulling rod movably passing through the mounting base.

[0008] Furthermore, the bottom of the tester body is provided with an angle adjustment mechanism, which includes a support base plate at the lower end of the tester body, a suction cup installed on the bottom surface of the support base plate, a connecting plate hinged to the support base plate, the connecting plate being connected to the bottom of the tester body, a locking rod movably passing through the connecting plate, and a locking groove provided on the support base plate.

[0009] Furthermore, the card slot has multiple sets.

[0010] Furthermore, a sealing ring is installed on the cover plate, and a sealing groove adapted to the sealing ring is provided on the tester body.

[0011] Furthermore, a handle is installed on the cover plate.

[0012] Furthermore, a handle is installed at one end of the holding rod.

[0013] The beneficial effects of this application are: the motor insulation resistance tester provided by this application, through the setting of mounting plate, cover plate, handle, fixing rod, recess, mounting base, buckle, spring, pull rod and handle, can achieve dustproof sealing of the wiring port when not in use, so as to prevent external dust, moisture, oil and other contaminants from entering the wiring port.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is an overall schematic diagram of a motor insulation resistance tester according to this application;

[0017] Figure 2 for Figure 1 Exploded view;

[0018] Figure 3 for Figure 2 Enlarged view of point A;

[0019] The following are the labeling elements in the figure:

[0020] 1. Tester body; 11. Control panel; 12. Display screen; 13. Button; 14. Wiring port; 15. Sealing groove; 2. Angle adjustment mechanism; 21. Support base plate; 22. Suction cup; 23. Connecting plate; 24. Slot; 25. Locking rod; 3. Protection mechanism; 31. Mounting plate; 32. Cover plate; 33. Handle; 34. Fixing rod; 35. Recessed hole; 36. Mounting base; 37. Buckle block; 38. Spring; 39. Pull rod; 310. Handle. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] like Figures 1-3 As shown, this application provides a motor insulation resistance tester, including a tester body 1. One end face of the tester body 1 is a control panel 11. The control panel 11 is suitable for realizing human-computer interaction to control the working status of the tester and obtain the required information. The control panel 11 includes a display screen 12 fixedly installed at one end of the tester body 1. The display screen 12 is used to display various test data, parameter information and the working status of the instrument.

[0024] Furthermore, a button 13 is installed on the tester body 1 on one side of the display screen 12. The button 13 enables input of various operation commands for the tester. A wiring port 14 is fixedly installed on the tester body 1. The wiring port 14 is used to connect to external test lines.

[0025] An angle adjustment mechanism 2 is provided at the bottom of the tester body 1. The angle adjustment mechanism 2 is used to tilt the tester body 1. The angle adjustment mechanism 2 includes a support base plate 21 provided at the lower end of the tester body 1, and a suction cup 22 is fixedly installed on the bottom surface of the support base plate 21. The suction cup 22 is suitable for adhering to the ground. A connecting plate 23 is hinged to the support base plate 21 and is connected to the bottom of the tester body 1.

[0026] The connecting plate 23 is suitable for rotating along the hinge axis of the supporting base plate 21, and a locking rod 25 is movably inserted through the connecting plate 23. At the same time, the supporting base plate 21 is provided with a locking groove 24 adapted to the locking rod 25. Multiple sets of locking grooves 24 are equally spaced. The locking rod 25 has a rotation function. When it is necessary to fix the position of the connecting plate 23, by rotating the locking rod 25, it can be accurately locked into the corresponding locking groove 24, thereby fixing the relative position of the connecting plate 23 and the supporting base plate 21, thus meeting different usage requirements.

[0027] By adjusting the locking rod 25 to engage with different slots 24, the angle or position of the connecting plate 23 relative to the supporting base plate 21 can be changed to adapt to various operating scenarios and mechanical actions. During operation, the rotation of the locking rod 25 and its engagement with the slots 24 provide a simple and effective position adjustment and locking mechanism for the connecting plate 23, ensuring the stability and functionality of the entire device structure, so that the device can perform the expected actions and adjustments under different working conditions.

[0028] Furthermore, a protection mechanism 3 is installed on the tester body 1. The protection mechanism 3 is used to protect the wiring port 14. The protection mechanism 3 includes a mounting plate 31 fixedly installed on the tester body 1. A cover plate 32 is hinged on the mounting plate 31. The cover plate 32 is suitable for rotation to fit against the tester body 1.

[0029] Furthermore, a sealing ring (not shown in the figure) is fixedly installed on the side of the cover plate 32 near the tester body 1, and a corresponding sealing groove 15 adapted to the sealing ring is provided on the tester body 1. When the cover plate 32 is rotated to the closed position, that is, when it is fastened to the tester body 1, the sealing ring will be embedded in the sealing groove 15. This improves the sealing performance of the connection port 14. The sealing ring can be made of elastic and sealing materials such as rubber or silicone, which can effectively fill the tiny gap between the cover plate 32 and the tester body 1, preventing external dust, moisture, oil, etc. from entering the connection port 14.

[0030] Furthermore, a handle 33 is fixedly installed on the cover plate 32, which facilitates the rotation of the cover plate 32 so that the operator can apply force comfortably and easily, making the opening and closing operation of the cover plate 32 more convenient. A fixing rod 34 is fixedly installed at the bottom of the cover plate 32, and two sets of locking units are fixedly installed on the tester body 1.

[0031] The locking unit includes a mounting base 36 fixedly installed on the tester body 1, and a spring 38 fixedly installed on the mounting base 36. The spring 38 is located on the side of the mounting base 36 near the fixing rod 34, and a buckle 37 is fixedly installed on one end of the spring 38. The buckle 37 includes a protrusion (not shown in the figure), and recesses 35 adapted to the protrusion are provided on both sides of the fixing rod 34.

[0032] Under the elastic force of the spring 38, the latch 37 moves towards the fixing rod 34. When the protrusion enters the recess 35, the latch 37 locks the cover 32 in the closed position. This latching mechanism is similar to a latch in daily life. Through the cooperation of the protrusion and the recess 35, the position of the cover 32 is fixed to prevent it from shaking or accidentally opening. During the latching process, the latch 37 is subjected to the continuous elastic force of the spring 38, ensuring that it remains in the latched state under various environments (such as being subjected to certain vibrations or external impacts), ensuring the stability of the cover 32 and the safety of the tester connection port 14.

[0033] A pull rod 39 is fixedly installed on the buckle 37. One end of the pull rod 39 extends through the mounting base 36, and a handle 310 is fixedly installed on one end of the pull rod 39. The handle 310 is suitable for pulling the buckle 37 to move.

[0034] When it is necessary to open the cover 32 to connect the wiring, the operator first grasps the handle 310 and pulls the lever 39. Since the lever 39 is fixedly connected to the latch 37, pulling the lever 39 will cause the latch 37 to move, moving the protrusion on the latch 37 away from the recess 35 on the fixing rod 34. During this process, the spring 38 will be further compressed, storing more elastic potential energy. Once the protrusion is completely disengaged from the recess 35, the cover 32 is no longer locked. At this time, the operator can rotate the cover 32 by holding the handle 33 in the protective mechanism 3 to open it, thereby exposing the wiring port 14 for easy connection.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A motor insulation resistance tester, characterized in that: include: Tester body (1), which has a wiring port (14) installed on it. Protection mechanism (3), which is installed on the tester body (1), includes: Mounting plate (31), which is mounted on the tester body (1), and a cover plate (32) is hinged to the mounting plate (31). Mounting base (36), which is mounted on the tester body (1), and a spring (38) is mounted on the mounting base (36). A buckle (37) is mounted on one end of the spring (38), and the buckle (37) includes a protrusion. A fixing rod (34) is installed at the bottom of the cover plate (32), and recesses (35) are provided on both sides of the fixing rod (34). A pull rod (39) is mounted on the buckle block (37), and one end of the pull rod (39) extends through the mounting base (36).

2. The motor insulation resistance tester according to claim 1, characterized in that: An angle adjustment mechanism (2) is provided at the bottom of the tester body (1). The angle adjustment mechanism (2) includes a support base plate (21) at the lower end of the tester body (1). A suction cup (22) is installed on the bottom surface of the support base plate (21). A connecting plate (23) is hinged on the support base plate (21). The connecting plate (23) is connected to the bottom of the tester body (1). A locking rod (25) is movably passed through the connecting plate (23). A locking groove (24) is provided on the support base plate (21).

3. The motor insulation resistance tester according to claim 2, characterized in that: The card slot (24) has multiple sets.

4. The motor insulation resistance tester according to claim 3, characterized in that: The two sets of cover plates (32) are equipped with sealing rings, and the tester body (1) is provided with a sealing groove (15) that is compatible with the sealing rings.

5. The motor insulation resistance tester according to claim 4, characterized in that: A handle (33) is installed on the cover plate (32).

6. The motor insulation resistance tester according to claim 5, characterized in that: A handle (310) is installed at one end of the holding rod (39).

Images