Clip-on ammeter convenient for finding faults of photovoltaic string

Abstract

The utility model relates to the related technical field of clip-on ammeters, in particular to a clip-on ammeter convenient for finding photovoltaic string faults, which comprises a display screen and a support mechanism, the support mechanism is arranged on one side of the surface of the display screen, and a combination mechanism is arranged at one end of the display screen. According to the clip-on ammeter convenient for finding the photovoltaic string fault, through the arrangement of the supporting mechanism, firstly, supporting legs are in threaded connection to a display screen, then a limiting block is pressed, the limiting block presses a first spring, then a connecting block is embedded into a sliding groove, and when the position of a first limiting groove is aligned with the position of a groove, the limiting block moves from the groove to the first limiting groove; when the limiting block is completely embedded into the first limiting groove and presses the handle, clamping is completed, then the button is pressed, the button is pressed into the integration groove, then the sliding rod slides, the supporting angle of the land touching block is adjusted, after adjustment is completed, the button is embedded into the second limiting groove again, and supporting is completed.

Description

Technical Field

[0001] This utility model relates to the technical field of clamp-on ammeters, and in particular to a clamp-on ammeter that facilitates the location of faults in photovoltaic strings. Background Technology

[0002] A clamp meter is an electrical instrument used to measure current. It can measure current directly without disconnecting the circuit. It uses a current sensor to clamp a wire, sense the current flowing through the wire, and then displays the current value. Clamp meters are widely used in power, industry, and home appliance repair, offering the advantages of convenient and non-destructive testing. In outdoor maintenance, it is usually necessary for maintenance personnel to climb to a high place to use the device for testing. With the continuous development of technology, the functional requirements for clamp meters are also increasing. Therefore, there is a particular need for a clamp meter that can easily locate faults in photovoltaic strings.

[0003] However, existing clamp-on ammeters, which are convenient for finding faults in photovoltaic strings, can quickly detect high-altitude strings with simple zero-coupling without climbing ladders. However, since the device is handheld, the shaking caused by the person performing the test not only affects the actual detection effect of the device, but also poses a certain degree of danger.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN215218956U that discloses a clamp-on ammeter for facilitating the location of photovoltaic string faults. The patent describes a device comprising a lifting sleeve, a lifting rod, an adjusting bolt, a concave support frame, and a clamp-on ammeter. The lifting rod is slidably inserted into the lifting sleeve, and a threaded hole is located at the top of one side of the lifting sleeve. The adjusting bolt is threaded into the hole. The concave support frame is fixedly connected to the end of the lifting rod away from the lifting sleeve. The clamp-on ammeter is fixed within the groove of the concave support frame via fixing structures located at the top of both sides. This invention eliminates the need for ladders, significantly increasing the speed of locating faulty strings. The operation is simple, safe, labor-saving, and efficient. While this mechanism allows for rapid detection of high-altitude strings with minimal setup and without the need for ladders, the device is manually operated. The shaking during manual inspection not only affects the actual detection effect but also poses a certain degree of danger.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a clamp meter that facilitates the location of photovoltaic string faults, in order to solve the problem mentioned in the background art that although existing clamp meters for locating photovoltaic string faults can quickly detect high-altitude strings with simple zero-coupling without climbing ladders, the device is manually held, and the shaking caused by manual inspection not only affects the actual detection effect of the device, but also poses a certain degree of danger.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamp-on ammeter for facilitating the location of photovoltaic string faults, comprising a display screen and a support mechanism, wherein the support mechanism is provided on one side of the surface of the display screen and a combination mechanism is provided at one end of the display screen;

[0008] The support mechanism includes a support leg, a sliding groove, a first limiting groove, a connecting block, a handle, a groove, a connecting rod, a first spring, a sliding rod, a second limiting groove, a limiting block, an integrated groove, a ground contact block, a second spring, and a button. A support leg is threaded onto one side of the display screen. A sliding groove is formed on the surface of the display screen. First limiting grooves are formed on both sides of the sliding groove. A connecting block is fitted inside the sliding groove. A handle is fitted inside the first limiting groove. Grooves are formed at both ends of the connecting block. A connecting rod is rotatably connected to one side of the connecting block. A first spring is connected to one side of the groove. A sliding rod is fitted inside the connecting rod. A second limiting groove is formed on one side of the surface of the connecting rod. A limiting block is connected to the other side of the first spring. An integrated groove is formed on one side of the surface of the sliding rod. A ground contact block is connected to one end of the sliding rod. A second spring is connected to one side of the integrated groove. A button is connected to the other side of the second spring.

[0009] Preferably, the slide groove is provided in three sets, and the three sets of slide groove are distributed at equal angles on the support leg.

[0010] Preferably, the groove is positioned directly opposite the first limiting groove, and the dimensions of the groove and the first limiting groove match.

[0011] Preferably, two sets of the first springs are provided in the groove, and the connecting block forms a sliding structure with the groove and the first limiting groove respectively through the first springs.

[0012] Preferably, six sets of the second limiting grooves are provided on the connecting rod, and they are evenly distributed on the connecting rod, with the second limiting grooves and the integrated grooves being aligned.

[0013] Preferably, the surface of the button is fitted inside the second limiting groove, and the button forms a sliding structure with the second limiting groove and the integrated groove respectively through the second spring.

[0014] Preferably, the combined mechanism includes a module rod, a threaded groove, a cylinder, and a contact current assembly. The module rod is threadedly connected to the other side of the display screen, and a threaded groove is provided on the other side of the module rod. A cylinder is threadedly connected inside the threaded groove, and the output end of the cylinder is connected to the contact current assembly.

[0015] Preferably, the contact current component is electrically connected to the display screen, and the cylinder is electrically connected to the display screen.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the clamp-on ammeter that facilitates the finding of photovoltaic string faults, through the setting of the support mechanism and the combination mechanism, the support mechanism completes the fixed support of the detection component through the cooperation of simple parts, avoiding the shaking of the device during use, thereby improving the detection effect, and the combination mechanism adapts to strings of different heights through modular design, thereby improving the flexibility of the device. Attached Figure Description

[0017] Figure 1 This is a side view of the appearance structure of this utility model;

[0018] Figure 2 This is an exploded cross-sectional view of some parts of the support mechanism of this utility model;

[0019] Figure 3 This is an exploded cross-sectional view of some parts of the combined mechanism of this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Display screen; 2. Support mechanism; 201. Support leg; 202. Slide groove; 203. First limiting groove; 204. Connecting block; 205. Handle; 206. Groove; 207. Connecting rod; 208. First spring; 209. Slide rod; 210. Second limiting groove; 211. Limiting block; 212. Integrated groove; 213. Ground contact block; 214. Second spring; 215. Button; 3. Combination mechanism; 301. Module rod; 302. Threaded groove; 303. Cylinder; 304. Contact current assembly. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a clamp-on ammeter for facilitating the location of photovoltaic string faults, comprising a display screen 1 and a support mechanism 2, wherein the support mechanism 2 is provided on one side of the surface of the display screen 1 and a combination mechanism 3 is provided at one end of the display screen 1;

[0025] The support mechanism 2 includes a support leg 201, a slide groove 202, a first limiting groove 203, a connecting block 204, a handle 205, a groove 206, a connecting rod 207, a first spring 208, a slide rod 209, a second limiting groove 210, a limiting block 211, an integrated groove 212, a ground contact block 213, a second spring 214, and a button 215. The support leg 201 is threaded onto one side of the display screen 1. The slide groove 202 is formed on the surface of the display screen 1. First limiting grooves 203 are formed on both sides of the slide groove 202. A connecting block 204 is fitted inside the slide groove 202, and a handle 205 is fitted inside the first limiting groove 203. 5. The connecting block 204 has grooves 206 at both ends. A connecting rod 207 is rotatably connected to one side of the connecting block 204. A first spring 208 is connected to one side of the groove 206. A sliding rod 209 is fitted inside the connecting rod 207. A second limiting groove 210 is formed on one side of the surface of the connecting rod 207. A limiting block 211 is connected to the other side of the first spring 208. An integrated groove 212 is formed on one side of the surface of the sliding rod 209. A ground contact block 213 is connected to one end of the sliding rod 209. A second spring 214 is connected to one side of the integrated groove 212. A button 215 is connected to the other side of the second spring 214. The configuration of the support leg 201, slide groove 202, first limiting groove 203, connecting block 204, handle 205, groove 206, connecting rod 207, first spring 208, slide rod 209, second limiting groove 210, limiting block 211, integrated groove 212, ground contact block 213, second spring 214, and button 215 is as follows: In use, firstly, the support leg 201 is threaded onto the display screen 1. Then, the limiting block 211 is pressed, which presses the first spring 208. Afterward, the connecting block 204 is fitted into the slide groove 202. When the first limiting groove 203 and the groove 206 are aligned, the first spring... 208 rebounds and deforms, thereby driving the limiting block 211 to move from the groove 206 to the first limiting groove 203. When the limiting block 211 is fully engaged in the first limiting groove 203 and the handle 205 is pressed, the locking installation is completed. Then, the button 215 is pressed from the second limiting groove 210 into the integrated groove 212. Then, the slide rod 209 is slid to adjust the support angle of the ground contact block 213. After the adjustment is completed, the second limiting groove 210 and the integrated groove 212 are aligned. The button 215 will engage in the second limiting groove 210, thereby completing the locking of the slide rod 209 and completing the support.

[0026] Furthermore, three sets of slide rails 202 are provided, which are distributed at equal angles on the support leg 201. Through the arrangement of the slide rails 202, a sliding channel is provided for the connecting block 204, allowing the connecting block 204 to move freely along the slide rails 202 on the support leg 201. This design allows the height and angle of the display screen 1 to be adjusted as needed, ensuring that users can easily change the display angle or position of the display screen 1 to meet different work requirements.

[0027] Furthermore, the groove 206 and the first limiting groove 203 are aligned, and their dimensions match. Through the arrangement of the groove 206 and the first limiting groove 203, the groove 206 serves as a key structural component for engaging the connecting block 204, ensuring that the connecting block 204 can be securely fixed on the support leg 201 without tilting or shifting. When the groove 206 of the connecting block 204 slides to the position of the first limiting groove 203, it can cooperate with the first limiting groove 203 to form a fixed structure, ensuring that the connecting block 204 remains stationary in the target position, thus guaranteeing the stability of the support device and preventing misoperation or loosening.

[0028] Furthermore, two sets of first springs 208 are provided in the groove 206. The connecting block 204 forms a sliding structure with the groove 206 and the first limiting groove 203 respectively through the first springs 208. Through the arrangement of the first springs 208, the structure of the first springs 208 and the groove 206 cooperates so that when the connecting block 204 slides to the position of the first limiting groove 203, the spring's rebound force can ensure that the connecting block 204 is stably fixed. This rebound force can prevent the connecting block 204 from loosening or shifting after adjustment, thereby enhancing the stability of the display screen 1.

[0029] Furthermore, six sets of second limiting grooves 210 are provided on the connecting rod 207, and they are evenly distributed on the connecting rod 207. The second limiting grooves 210 are aligned with the integrated groove 212. By setting the second limiting grooves 210, the second limiting grooves 210 are located on the surface of the connecting rod 207, ensuring that the sliding range of the slide rod 209 within the connecting rod 207 is not too large or too small. By setting the position and size of the second limiting grooves 210, the movement of the slide rod 209 is precisely controlled, preventing the slide rod 209 from exceeding the predetermined movement range, thereby ensuring the stability and reliability of the system.

[0030] Furthermore, the surface of button 215 is fitted inside the second limiting groove 210. Button 215 forms a sliding structure with the second limiting groove 210 and the integrated groove 212 respectively through the second spring 214. Through the setting of button 215, button 215 plays the role of adjusting the position of slide rod 209 by cooperating with the second limiting groove 210 and the integrated groove 212. Button 215 achieves precise adjustment of slide rod 209 through the interaction between the second spring 214 and the second limiting groove 210 and the integrated groove 212. When button 215 is pressed, button 215 cooperates with the second limiting groove 210 to drive slide rod 209 to slide in connecting rod 207, thereby adjusting the position of ground block 213.

[0031] Furthermore, the assembly mechanism 3 includes a module rod 301, a threaded groove 302, a cylinder 303, and a contact current component 304. The module rod 301 is threadedly connected to the other side of the display screen 1. The other side of the module rod 301 has a threaded groove 302. The cylinder 303 is threadedly connected inside the threaded groove 302. The output end of the cylinder 303 is connected to the contact current component 304. After the support is completed by setting up the module rod 301, the threaded groove 302, the cylinder 303, and the contact current component 304, the other side of the display screen 1 is threadedly connected to the module rod 301. The module rod 301 is selected according to different heights, and the cylinder 303 is installed on the other side for fine adjustment. The cylinder 303 can adjust the movement of the contact current component 304 through air pressure control, so that the contact current component 304 contacts the string. The data after contact will be displayed on the display screen 1.

[0032] Furthermore, the contact current component 304 is electrically connected to the display screen 1, and the cylinder 303 is electrically connected to the display screen 1. Through the arrangement of the cylinder 303 and the contact current component 304, the cylinder 303 provides power support to the contact current component 304 through its pneumatic drive function. The output end of the cylinder 303 is connected to the contact current component 304, allowing the contact current component 304 to be precisely positioned or adjusted in the device as needed. The contact current component 304 is electrically connected to the display screen 1, enabling it to interact with the working circuit of the display screen 1, thereby quickly performing detection work.

[0033] Working principle: First, connect the support leg 201 to the display screen 1 by thread. Then, press the limiting block 211, which presses the first spring 208. Next, engage the connecting block 204 into the sliding groove 202. When the first limiting groove 203 and the recess 206 are aligned, the first spring 208 springs back, causing the limiting block 211 to move from the recess 206 into the first limiting groove 203. When the limiting block 211 is fully engaged in the first limiting groove 203 and the handle 205 is pressed, the engagement is complete. Then, press the button 215, moving it from the second limiting groove 210 into the integrated groove 212. Finally, slide the sliding rod 2... 09, thereby adjusting the support angle of the ground contact block 213. After the adjustment is completed, the second limiting groove 210 and the integrated groove 212 are aligned. The button 215 will be fitted into the second limiting groove 210, thereby completing the engagement of the slide rod 209 and completing the support. After the support is completed, the other side of the display screen 1 is connected to the module rod 301 by thread. The module rod 301 is selected according to different heights, and the cylinder 303 is installed on the other side for fine adjustment. The cylinder 303 can adjust the movement of the contact current component 304 by air pressure control, thereby making the contact current component 304 contact the string. The data after contact will be displayed on the display screen 1.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamp-on ammeter for facilitating the location of photovoltaic string faults, comprising a display screen (1) and a support mechanism (2), characterized in that: A support mechanism (2) is provided on one side of the surface of the display screen (1), and a combination mechanism (3) is provided at one end of the display screen (1); The support mechanism (2) includes a support leg (201), a slide groove (202), a first limiting groove (203), a connecting block (204), a handle (205), a groove (206), a connecting rod (207), a first spring (208), a slide rod (209), a second limiting groove (210), a limiting block (211), an integrated groove (212), a ground contact block (213), a second spring (214), and a button (215). The support leg (201) is threadedly connected to one side of the display screen (1). The surface of the display screen (1) is provided with a slide groove (202). The first limiting grooves (203) are provided on both sides of the slide groove (202). The connecting block (204) is fitted inside the slide groove (202). The handle is fitted inside the first limiting groove (203). (205) The connecting block (204) has grooves (206) at both ends. A connecting rod (207) is rotatably connected to one side of the connecting block (204). A first spring (208) is connected to one side of the groove (206). A slide rod (209) is fitted inside the connecting rod (207). A second limiting groove (210) is opened on one side of the surface of the connecting rod (207). A limiting block (211) is connected to the other side of the first spring (208). An integrated groove (212) is opened on one side of the surface of the slide rod (209). A ground contact block (213) is connected to one end of the slide rod (209). A second spring (214) is connected to one side of the integrated groove (212). A button (215) is connected to the other side of the second spring (214).

2. The clamp-on ammeter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: The slide groove (202) is provided in three sets, and the three sets of slide groove (202) are distributed at equal angles on the support leg (201).

3. A clamp meter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: The groove (206) is positioned directly opposite the first limiting groove (203), and the dimensions of the groove (206) and the first limiting groove (203) match.

4. A clamp meter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: Two sets of the first spring (208) are provided in the groove (206), and the connecting block (204) forms a mutual sliding structure with the groove (206) and the first limiting groove (203) respectively through the first spring (208).

5. A clamp-on ammeter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: The second limiting groove (210) is provided in six sets on the connecting rod (207) and is distributed at equal intervals on the connecting rod (207). The second limiting groove (210) is aligned with the integrated groove (212).

6. A clamp meter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: The surface of the button (215) is fitted inside the second limiting groove (210), and the button (215) forms a sliding structure with the second limiting groove (210) and the integrated groove (212) respectively through the second spring (214).

7. A clamp meter for facilitating the location of photovoltaic string faults according to claim 1, characterized in that: The combined mechanism (3) includes a module rod (301), a threaded groove (302), a cylinder (303), and a contact current assembly (304). The module rod (301) is threadedly connected to the other side of the display screen (1). The other side of the module rod (301) has a threaded groove (302). The cylinder (303) is threadedly connected inside the threaded groove (302). The output end of the cylinder (303) is connected to the contact current assembly (304).

8. A clamp meter for facilitating the location of photovoltaic string faults according to claim 7, characterized in that: The contact current component (304) is electrically connected to the display screen (1), and the cylinder (303) is electrically connected to the display screen (1).

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