A scalable handle transformer parameter tester

Abstract

The utility model discloses a telescopic handle transformer parameter tester, including the tester body, the surface of tester body is provided with telescopic handle subassembly, the top of tester body is provided with the accommodation groove. The utility model discloses a telescopic handle subassembly is set up, can accommodate the handle to the accommodation groove when not using the handle, reduced the space of tester's occupation, is convenient for storage and carrying. The telescopic handle subassembly's structural design makes the telescopic operation simple and convenient of handle, through the forward rotation handle, drives the rotation of screw rod to make the movement of mobile sleeve in guide groove, and then make the clamping rod separate from the card slot, then pull the handle and move to the appropriate height, then reverse rotation handle, and then make the clamping rod insert the card slot of corresponding height, thereby realize the adjustment of handle height to satisfy the demand of different users.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer testing equipment, specifically a transformer parameter tester with a retractable handle. Background Technology

[0002] Transformer parameter testers are specialized devices used in power systems to accurately measure the electrical performance of transformers. They are mainly divided into MCCS electrical parameter testers and capacity and no-load testers, and are widely used in transformer factory inspection, field maintenance, and power grid upgrades. Their core functions include electrical parameter measurement, capacity verification, loss calculation, and automatic correction. They feature high precision, anti-interference capabilities, and portability, and can meet testing requirements under different standards.

[0003] Existing transformer parameter testers have some shortcomings in practical use. For example, the handle of the tester is usually a fixed structure, which takes up a lot of space when not in use, making it inconvenient to store and carry. This is especially true when the tester needs to be placed in a confined space or transported over long distances. Therefore, we propose a transformer parameter tester with a retractable handle. Utility Model Content

[0004] The purpose of this invention is to provide a transformer parameter tester with a retractable handle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a retractable handle transformer parameter tester, comprising a tester body, a retractable handle assembly provided on the surface of the tester body, a storage slot provided on the top of the tester body, a display screen installed on the front side of the tester body, control buttons fixedly connected to the front side of the tester body, and a data interface and a power interface also provided on the front side of the tester body.

[0006] Furthermore, the retractable handle assembly includes a fixed frame, a sliding column, a slider, a connecting rod, a handle, a slot, a guide groove, a screw, a handle, a movable sleeve, and a locking rod. Fixed frames are fixedly connected to both the left and right sides of the tester body.

[0007] Furthermore, the front and rear sides and the top of the fixing frame are open, and the front and rear sides of the bottom of the inner wall of the fixing frame are fixedly connected with sliding columns. The top of the sliding columns is fixedly connected to the top of the inner wall of the fixing frame, and the two sliding columns are slidably connected below by a slider.

[0008] Furthermore, the surface of the slider is in movable contact with the inner wall of the fixed frame, a connecting rod is fixedly connected to the middle of the top of the slider, a handle is movably connected inside the storage slot, the bottom of the handle is fixedly connected to the top of the connecting rod, the bottom of the handle is in movable contact with the top of the fixed frame, and multiple slots are equally spaced from bottom to top on the front side of the fixed frame.

[0009] Furthermore, a guide groove is provided on the front side of the slider away from the tester body. A screw is rotatably connected to the rear side of the inner wall of the guide groove via a bearing. The front end of the screw passes through the guide groove and the slider in sequence and extends to the outside of the slider and is fixedly connected to a handle.

[0010] Furthermore, the screw and the slider are rotatably connected, the screw surface is threaded with a movable sleeve, the movable sleeve is slidably connected with the guide groove, and the top and bottom of the movable sleeve are in active contact with the inner wall of the guide groove.

[0011] Furthermore, the side of the movable sleeve away from the tester body passes through the guide groove and extends to the outside of the guide groove. A locking rod is fixedly connected to the rear side of the movable sleeve. The rear end of the locking rod passes through the locking groove and extends into the inside of the locking groove. The locking rod and the locking groove are movably engaged.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention features a retractable handle assembly. When not in use, the handle can be stored in a storage slot, reducing the space occupied by the testing instrument and facilitating storage and portability. The retractable handle assembly's structural design makes its extension and retraction simple and convenient. Rotating the handle forward drives the screw, causing the movable sleeve to move within the guide groove, disengaging the locking rod. Pulling the handle up or down to the desired height allows for adjustment of the handle height, accommodating different users' needs. Reversing the handle allows the locking rod to insert into the corresponding height slot, enabling height adjustment to meet the needs of various users. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the assembly structure of the fixing frame and the slider of this utility model;

[0018] Figure 5This is a schematic diagram of the assembly structure of the fixing frame and connecting rod of this utility model.

[0019] In the diagram: 1. Tester body; 2. Retractable handle assembly; 201. Fixing frame; 202. Sliding column; 203. Sliding block; 204. Connecting rod; 205. Handle; 206. Slot; 207. Guide groove; 208. Screw; 209. Handle; 210. Moving sleeve; 211. Locking rod; 3. Storage slot. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] Please see Figure 1-5 A retractable handle transformer parameter tester includes a tester body 1, a retractable handle assembly 2 on the surface of the tester body 1, a storage slot 3 adapted to the handle 205 on the top of the tester body 1, a display screen 4 installed on the front of the tester body 1, control buttons fixedly connected to the front of the tester body 1, and a data interface and a power interface also provided on the front of the tester body 1.

[0023] Please see Figure 1-5The retractable handle assembly 2 includes a fixed frame 201, a sliding column 202, a slider 203, a connecting rod 204, a handle 205, a slot 206, a guide groove 207, a screw 208, a handle 209, a movable sleeve 210, and a locking rod 211. The fixed frame 201 is fixedly connected to both the left and right sides of the tester body 1. The fixed frame 201 adopts a frame structure with open front, rear, and top sides. This design reduces structural weight and provides ample space for the extension and retraction of the handle 205. Sliding columns 202 and 203 are fixedly connected to the front and rear sides of the bottom inner wall of the fixed frame 201. The top of the column 202 and the sliding column 202 are fixedly connected to the top of the inner wall of the fixed frame 201. The two sliding columns 202 are slidably connected below by the slider 203. The surface of the slider 203 and the inner wall of the fixed frame 201 are made of precision clearance fit to achieve active contact, ensuring smooth sliding without jamming. The sliding guide mechanism formed by the sliding column 202 and the slider 203 ensures that the handle 205 maintains a vertical movement trajectory during the extension and retraction process, avoiding deviation and jamming. With the precision clearance fit design, the lifting and lowering operation of the handle 205 is smooth and effortless, significantly improving the operating feel.

[0024] Please see Figure 1-5A connecting rod 204 is fixedly connected to the top center of the slider 203. A handle 205 is movably connected inside the storage slot 3. The bottom of the handle 205 is fixedly connected to the top of the connecting rod 204 by welding or bolt fastening. The bottom of the handle 205 is in movable contact with the top of the fixing frame 201. The front side of the fixing frame 201 has multiple positioning slots 206 at equal intervals from bottom to top. The multi-position slots 206 design realizes the graded adjustment of the height of the handle 205, which can be flexibly adjusted according to the height of the operator and the usage habits. The adjustable grip height reduces handling fatigue and improves operational comfort and user-friendliness. A guide groove 207, rectangular in shape, is located on the front side of the slider 203 away from the tester body 1. A screw 208 is rotatably connected to the rear inner wall of the guide groove 207 via a bearing. The front end of the screw 208 passes through the guide groove 207 and the slider 203, extending to the outside of the slider 203 and fixedly connected to a handle 209. The screw 208 and the slider 203 are rotatably connected. The surface of the screw 208... A threaded movable sleeve 210 is provided, which slides between itself and the guide groove 207. The top and bottom of the movable sleeve 210 are in active contact with the inner wall of the guide groove 207 to ensure stable movement. The side of the movable sleeve 210 furthest from the tester body 1 passes through the guide groove 207 and extends to the outside of the guide groove 207. The screw 208 and the movable sleeve 210 form a helical transmission mechanism, which converts rotational motion into linear motion to achieve precise positioning of the clamping rod 211. The rear side of the movable sleeve 210... A locking rod 211 is fixedly connected. The rear end of the locking rod 211 passes through the locking groove 206 and extends into the interior of the locking groove 206. The locking rod 211 and the locking groove 206 are movably engaged. The interference fit structure between the locking rod 211 and the locking groove 206 provides sufficient locking force to prevent the handle 205 from sliding accidentally. The overall telescopic structure allows the handle 205 to be stored in the storage slot 3 when not in use, keeping the surface of the equipment flat, reducing the space occupied, facilitating storage in small spaces and dense stacking transportation, and reducing packaging and transportation costs.

[0025] In practical applications: When the handle 205 needs to be used, rotating the handle 209 forward causes the screw 208 to rotate, thereby moving the movable sleeve 210 forward within the guide groove 207. This causes the locking rod 211 to disengage from the slot 206. Then, the handle 205 is pulled upward to a suitable height. Reversing the rotation of the handle 209 causes the locking rod 211 to insert into the corresponding height slot 206, thus adjusting the height of the handle 205 to meet the needs of different users and facilitate the user's gripping of the handle 205 to transport the testing instrument. When the handle 205 needs to be stored, rotating the handle 209 forward causes the screw 208 to rotate, moving the movable sleeve 210 forward within the guide groove 207, thereby disengaging the locking rod 211 from the slot 206. At this point, push the handle 205 downwards. The handle 205 drives the slider 203 to slide down on the slide column 202 to the limit position via the connecting rod 204, thereby storing the handle 205 in the storage slot 3. Then, rotate the handle 209 in the opposite direction, so that the locking rod 211 can be inserted into the corresponding height slot 206. Through the above steps, the space occupied by the tester is reduced, making it easier to store and collect.

[0026] 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 retractable handle transformer parameter tester, comprising a tester body (1), characterized in that: The surface of the tester body (1) is provided with a retractable handle assembly (2), the top of the tester body (1) is provided with a storage slot (3), the front of the tester body (1) is provided with a display screen (4), the front of the tester body (1) is fixedly connected with control buttons, and the front of the tester body (1) is also provided with a data interface and a power interface.

2. The retractable handle transformer parameter tester according to claim 1, characterized in that: The retractable handle assembly (2) includes a fixed frame (201), a sliding column (202), a slider (203), a connecting rod (204), a handle (205), a slot (206), a guide groove (207), a screw (208), a handle (209), a movable sleeve (210), and a locking rod (211). The fixed frame (201) is fixedly connected to both the left and right sides of the tester body (1).

3. The retractable handle transformer parameter tester according to claim 2, characterized in that: The front, rear, and top sides of the fixed frame (201) are open. The front and rear sides of the bottom of the inner wall of the fixed frame (201) are fixedly connected with sliding columns (202). The top of the sliding column (202) is fixedly connected to the top of the inner wall of the fixed frame (201). The two sliding columns (202) are slidably connected below each other by a slider (203).

4. The retractable handle transformer parameter tester according to claim 3, characterized in that: The surface of the slider (203) is in movable contact with the inner wall of the fixing frame (201). A connecting rod (204) is fixedly connected to the middle of the top of the slider (203). A handle (205) is movably connected inside the storage slot (3). The bottom of the handle (205) is fixedly connected to the top of the connecting rod (204). The bottom of the handle (205) is in movable contact with the top of the fixing frame (201). Multiple slots (206) are evenly spaced from bottom to top on the front side of the fixing frame (201).

5. The retractable handle transformer parameter tester according to claim 4, characterized in that: A guide groove (207) is provided on the side of the slider (203) away from the tester body (1). A screw (208) is rotatably connected to the rear side of the inner wall of the guide groove (207) through a bearing. The front end of the screw (208) passes through the guide groove (207) and the slider (203) in sequence and extends to the outside of the slider (203) and is fixedly connected to a handle (209).

6. The retractable handle transformer parameter tester according to claim 5, characterized in that: The screw (208) is rotatably connected to the slider (203). The screw (208) is threaded with a movable sleeve (210). The movable sleeve (210) is slidably connected to the guide groove (207). The top and bottom of the movable sleeve (210) are in active contact with the inner wall of the guide groove (207).

7. A retractable handle transformer parameter tester according to claim 6, characterized in that: The movable sleeve (210) extends through the guide groove (207) and out of the guide groove (207) on the side away from the tester body (1). A locking rod (211) is fixedly connected to the rear side of the movable sleeve (210). The rear end of the locking rod (211) extends through the locking groove (206) and into the interior of the locking groove (206). The locking rod (211) and the locking groove (206) are movably engaged.

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