Wire clamp structure for transformer

Abstract

The utility model relates to the technical field of electric power engineering equipment, in particular to a wire clamp structure for a transformer, which comprises a transformer body, the top of the transformer body is fixedly provided with a high-voltage side lead, the top of the transformer body is fixedly provided with a low-voltage side lead, and one side of the low-voltage side lead is provided with a wire clamp assembly; according to the invention, the wire clamp pre-mounting base, the clamping block, the first bolt and other components are arranged, and the wire clamp pre-mounting base and the clamping block are fixedly connected and matched, so that the clamping block can be stably mounted through the first bolt. And meanwhile, the clamping groove is matched with the positioning block, so that the positioning block can be accurately fixed in the clamping groove. Therefore, the device can accurately position the installation position of the cable through a reasonable structural design, guarantees the stability of the structure of the cable clamp, and provides a good foundation for the subsequent cable connection. And the guide rod sleeve and the second bolt are in threaded sleeving fit, so that the guide rod sleeve can fasten the penetrated cable by tightening the second bolt.

Description

Technical Field

[0001] This application relates to the field of power engineering equipment technology, and in particular to a clamp structure for a transformer. Background Technology

[0002] In power systems, transformers, as crucial electrical equipment, undertake key tasks such as voltage transformation, power transmission, and distribution. The normal operation of transformers is essential for the stability and reliability of power supply. In the actual use of transformers, the connection and fixation of the leads is a critical link. Specifically, the low-voltage side leads need to be securely connected using appropriate clamp structures to ensure safe and stable current transmission. However, existing clamp structures for transformer low-voltage side leads have some shortcomings. Some traditional clamp structures are not convenient to install, requiring significant time and manpower for installation and adjustment, thus affecting the efficiency of power equipment installation and maintenance. The fixing methods of some clamp structures are quite complex, requiring the use of various tools, increasing the difficulty and cost of installation.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following defects: the existing devices do not employ a rigidly connected pre-installed base, resulting in an unstable installation method. This causes the wire clamps to loosen easily due to vibrations during transformer operation, affecting the reliability of the connection between the wire clamps and the transformer body. Furthermore, the lack of designs such as U-shaped slots and rectangular rubber positioning blocks with anti-slip pads makes it difficult to accurately and quickly position the wire clamps during installation, potentially leading to installation deviations and consequently affecting the cable fixing effect and overall performance. Summary of the Invention

[0004] In order to solve the problems mentioned in the background art, this application provides a wire clamp structure for transformers.

[0005] This application provides a wire clamp structure for a transformer, which adopts the following technical solution: A wire clamp structure for a transformer includes a transformer body, a high-voltage side lead is fixedly installed on the top of the transformer body, a low-voltage side lead is fixedly installed on the top of the transformer body, and a wire clamp assembly is provided on one side of the low-voltage side lead.

[0006] A wire clamp assembly includes a wire clamp pre-installation base, a locking block, a first bolt, a locking groove, a positioning block, a guide rod sleeve, a second bolt, and longitudinal flexible anti-slip texture. The wire clamp pre-installation base is fixedly connected to the top of the transformer body. The top of the wire clamp pre-installation base is symmetrically fixedly connected with locking blocks. One side of the locking block is threaded with the first bolt. The top of the locking block has a locking groove. The inside of the locking groove is fixedly installed with a positioning block. The top of the positioning block is fixedly connected with a guide rod sleeve. One side of the guide rod sleeve is threaded with the second bolt. The inner wall of the guide rod sleeve is uniformly fixedly connected with longitudinal flexible anti-slip texture.

[0007] Through the above solution, the cable clamp assembly can achieve precise positioning and firm clamping of cables by working together of multiple components. At the same time, the longitudinal flexible anti-slip texture enhances the friction between the cable and the guide rod sleeve, preventing slippage.

[0008] Optionally, the wire clamp assembly further includes a first clamp plate, a second clamp plate, and a third bolt. The first clamp plate is fixedly connected to one side of the guide rod sleeve, and the angle between the first clamp plate and the guide rod sleeve is 135°. The top of the first clamp plate is fixedly installed with the second clamp plate by the third bolt, and the bottom surface of the second clamp plate and the top surface of the first clamp plate form a cable clamping space.

[0009] The above design provides a larger clamping area for the first and second clamping plates, ensuring that the cables are evenly distributed within the clamping space and reducing local pressure concentration.

[0010] Optionally, the pre-installation base of the wire clamp is a metal component, the bottom of which is rigidly connected to the top of the transformer body by welding or bolting, and the top surface of the pre-installation base of the wire clamp is provided with an installation groove that matches the shape of the clamp block.

[0011] The above solution ensures the strength and stability of the overall structure through the metal material and rigid connection of the pre-installed base of the wire clamp, while the design of the mounting slot simplifies the installation process of the clip.

[0012] Optionally, the slot at the top of the card block is a U-shaped groove structure, and the positioning block fixedly installed inside it is a rectangular rubber block. An anti-slip pad is provided between the bottom surface of the positioning block and the inner wall of the slot.

[0013] The above solution combines the U-shaped groove structure with the rubber positioning block to provide good cushioning and anti-slip effects, further enhancing the reliability of cable fixing.

[0014] Optionally, the guide rod sleeve is a hollow cylinder made of insulating material, with a threaded hole on its outer wall that is compatible with the second bolt. The longitudinal flexible anti-slip texture is evenly distributed along the inner wall of the guide rod sleeve and has a depth of 1-2 mm.

[0015] Through the above solution, the insulating material of the guide rod sleeve effectively prevents the risk of electrical short circuit, while the deep design of the longitudinal flexible anti-slip texture ensures the stability of the cable during the clamping process.

[0016] Optionally, both the first and second clamping plates are metal plates. The clamping surface of the second clamping plate is provided with an arc-shaped groove coaxial with the third bolt, and the surface of the arc-shaped groove is provided with transverse anti-slip texture.

[0017] The above design, with its arc-shaped grooves and transverse anti-slip textures, further enhances the friction between the cable and the clamp, preventing the cable from slipping or falling off during clamping.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. This utility model, by setting up a pre-installation base for the cable clamp, a locking block, and a first bolt, etc., and through the fixed connection between the pre-installation base and the locking block, allows the locking block to be securely installed by the first bolt. Simultaneously, the cooperation between the locking slot and the positioning block ensures that the positioning block is accurately fixed within the locking slot. Thus, this device, through its reasonable structural design, can accurately position the cable installation location, ensuring the stability of the cable clamp structure and providing a good foundation for subsequent cable connections.

[0020] 2. This utility model, by incorporating components such as a guide rod sleeve, a second bolt, and longitudinal flexible anti-slip textures, achieves a secure connection between the guide rod sleeve and the second bolt through a threaded engagement. Tightening the second bolt secures the inserted cable to the guide rod sleeve. The longitudinal flexible anti-slip textures increase friction with the cable. Thus, this device effectively prevents cable slippage and ensures stable power transmission by utilizing the cooperation of these components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0023] Figure 3 This is a partial structural diagram of the wire clamp assembly in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of a partial structure installation of the wire clamp assembly in an embodiment of this application;

[0025] Reference numerals: 1. Transformer body; 2. High-voltage side lead; 3. Low-voltage side lead; 4. Wire clamp assembly; 401. Wire clamp pre-installation base; 402. Locking block; 403. First bolt; 404. Locking groove; 405. Positioning block; 406. Guide rod sleeve; 407. Second bolt; 408. Longitudinal flexible anti-slip texture; 409. First clamping plate; 410. Second clamping plate; 411. Third bolt. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses a wire clamp structure for a transformer.

[0028] Please see Figure 1 A clamp structure for a transformer includes a transformer body 1, a high-voltage side lead 2 fixedly installed on the top of the transformer body 1, a low-voltage side lead 3 fixedly installed on the top of the transformer body 1, and a clamp assembly 4 provided on one side of the low-voltage side lead 3.

[0029] Please see Figures 2 to 4 The wire clamp assembly 4 includes a wire clamp pre-installation base 401, a locking block 402, a first bolt 403, a locking groove 404, a positioning block 405, a guide rod sleeve 406, a second bolt 407, and longitudinal flexible anti-slip textures 408. The wire clamp pre-installation base 401 is fixedly connected to the top of the transformer body 1. The locking block 402 is symmetrically fixedly connected to the top of the wire clamp pre-installation base 401. The first bolt 403 is threaded onto one side of the locking block 402. The locking groove 404 is opened on the top of the locking block 402. The positioning block 405 is fixedly installed inside the locking groove 404. The guide rod sleeve 406 is fixedly connected to the top of the positioning block 405. The second bolt 407 is threaded onto one side of the guide rod sleeve 406. The longitudinal flexible anti-slip textures 408 are uniformly fixedly connected to the inner wall of the guide rod sleeve 406.

[0030] The cable clamp assembly 4 also includes a first clamping plate 409, a second clamping plate 410, and a third bolt 411. The first clamping plate 409 is fixedly connected to one side of the guide rod sleeve 406, and the angle between the first clamping plate 409 and the guide rod sleeve 406 is 135°. The second clamping plate 410 is fixedly installed on the top of the first clamping plate 409 by the third bolt 411. The bottom surface of the second clamping plate 410 and the top surface of the first clamping plate 409 form a cable clamping space.

[0031] The wire clamp pre-installation base 401 is a metal component. Its bottom is rigidly connected to the top of the transformer body 1 by welding or bolting. The top surface of the wire clamp pre-installation base 401 is provided with an installation groove that matches the shape of the card block 402.

[0032] The slot 404 on the top of the card block 402 is a U-shaped groove structure. The positioning block 405 fixedly installed inside it is a rectangular rubber block. An anti-slip pad is provided between the bottom surface of the positioning block 405 and the inner wall of the slot 404.

[0033] The guide rod sleeve 406 is a hollow cylinder made of insulating material. Its outer wall is provided with threaded holes that are compatible with the second bolt 407. The longitudinal flexible anti-slip texture 408 is evenly distributed along the inner wall of the guide rod sleeve 406 and has a depth of 1-2mm.

[0034] Both the first clamping plate 409 and the second clamping plate 410 are metal plates. The clamping surface of the second clamping plate 410 is provided with an arc-shaped groove coaxial with the third bolt 411, and the surface of the arc-shaped groove is provided with transverse anti-slip texture.

[0035] Further explanation is needed regarding the wire clamp assembly 4. Its primary function is to provide a stable and precise foundation for the installation of the low-voltage side lead 3 of the transformer. The wire clamp pre-installation base 401 is fixed to the top of the transformer body 1, serving as the supporting foundation for the entire wire clamp assembly 4. Its metal material and rigid connection method ensure stability during transformer operation. The locking block 402 is installed on the wire clamp pre-installation base 401 and fixed by the first bolt 403, further enhancing the stability of the structure. The locking groove 404 on the top of the locking block 402 and the internal positioning block 405 cooperate with each other to accurately position the guide rod sleeve 406. The anti-slip rubber pad at the bottom of the positioning block 405 prevents it from moving, ensuring the accurate installation position of the guide rod sleeve 406 and providing a reliable foundation for the subsequent connection and fixation of cables.

[0036] The cable clamp assembly 4 also plays an important role in effectively connecting and fixing the cable. The guide rod sleeve 406 is made of insulating material to prevent leakage and ensure safety. The longitudinal flexible anti-slip texture 408 on its inner wall increases the friction with the cable and prevents the cable from sliding inside the guide rod sleeve 406. The first clamping plate 409 and the second clamping plate 410 are connected by the third bolt 411 to form a cable clamping space. The arc-shaped groove and transverse anti-slip texture on the second clamping plate 410 further enhance the clamping effect on the cable. By tightening the third bolt 411, the cable can be firmly clamped, so that the cable will not loosen or shift due to vibration, external force or other factors during transformer operation, ensuring stable current transmission, reducing safety hazards, and improving the reliability and stability of transformer operation.

[0037] The implementation principle of a wire clamp structure for a transformer according to an embodiment of this application is as follows:

[0038] First, the pre-installed base 401 of the wire clamp is fixed to the top of the transformer body 1. It is made of metal and is rigidly connected to the transformer body 1 by welding or bolting. This connection method ensures the overall stability and reliability of the wire clamp assembly 4 and provides a solid foundation for subsequent operations. At the same time, the top surface of the pre-installed base 401 of the wire clamp is provided with an installation groove that matches the shape of the card block 402, which facilitates the positioning and installation of the card block 402.

[0039] Next, the locking blocks 402 are symmetrically installed in the mounting grooves on the top of the pre-installation base 401 of the wire clamp. Then, the locking blocks 402 are firmly fixed to the pre-installation base 401 of the wire clamp by threading the first bolt 403 onto one side of the locking blocks 402. The U-shaped slot 404 opened on the top of the locking blocks 402 is used for the installation of subsequent components. The positioning block 405 in the slot 404 is a rectangular rubber block, and an anti-slip pad is provided between its bottom surface and the inner wall of the slot 404, which further enhances the stability of the positioning block 405.

[0040] Next, the bottom of the guide rod sleeve 406 is aligned with the positioning block 405 in the slot 404 and installed. The positioning block 405 ensures that the guide rod sleeve 406 is accurately installed in the predetermined position. After the guide rod sleeve 406 is installed, the guide rod sleeve 406 is further fixed and tightened by threading the second bolt 407 on one side of the guide rod sleeve 406. The guide rod sleeve 406 is a hollow cylinder made of insulating material, and its inner wall is evenly distributed with longitudinal flexible anti-slip textures 408, which can prevent the inserted cable from sliding inside the guide rod sleeve 406.

[0041] Next, the cable to be connected is passed through the guide sleeve 406. Since the longitudinal flexible anti-slip texture 408 on the inner wall of the guide sleeve 406 is in close contact with the cable, it can fix the position of the cable to a certain extent and prevent it from shaking randomly. At the same time, the guide sleeve 406 made of insulating material can effectively prevent cable leakage and ensure safe use.

[0042] Finally, a first clamping plate 409 with an angle of 135° to the guide rod sleeve 406 is fixedly connected to one side of the guide rod sleeve 406. A second clamping plate 410 is installed on the top of the first clamping plate 409 by a third bolt 411. The cable is placed in the cable clamping space formed between the first clamping plate 409 and the second clamping plate 410. Then, the third bolt 411 is tightened to bring the second clamping plate 410 closer to the first clamping plate 409, thereby clamping the cable. The arc-shaped groove and transverse anti-slip texture on the clamping surface of the second clamping plate 410 can further enhance the clamping effect on the cable, ensuring that the cable is firmly fixed in the clamping assembly 4 and achieving stable power transmission.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamp structure for a transformer, comprising a transformer body (1), characterized in that: A high-voltage side lead (2) is fixedly installed on the top of the transformer body (1), and a low-voltage side lead (3) is fixedly installed on the top of the transformer body (1). A wire clamp assembly (4) is provided on one side of the low-voltage side lead (3). The wire clamp assembly (4) includes a wire clamp pre-installation base (401), a locking block (402), a first bolt (403), a locking groove (404), a positioning block (405), a guide rod sleeve (406), a second bolt (407), and longitudinal flexible anti-slip texture (408). The wire clamp pre-installation base (401) is fixedly connected to the top of the transformer body (1), and the locking blocks (402) are symmetrically fixedly connected to the top of the wire clamp pre-installation base (401). A first bolt (403) is threaded onto one side of the locking block (402). A locking groove (404) is provided on the top of the locking block (402). A positioning block (405) is fixedly installed inside the locking groove (404). A guide rod sleeve (406) is fixedly connected to the top of the positioning block (405). A second bolt (407) is threaded onto one side of the guide rod sleeve (406). Longitudinal flexible anti-slip textures (408) are uniformly fixedly connected to the inner wall of the guide rod sleeve (406).

2. The wire clamp structure for a transformer according to claim 1, characterized in that: The cable clamp assembly (4) further includes a first clamping plate (409), a second clamping plate (410), and a third bolt (411). The first clamping plate (409) is fixedly connected to one side of the guide rod sleeve (406), and the angle between the first clamping plate (409) and the guide rod sleeve (406) is 135°. The second clamping plate (410) is fixedly installed on the top of the first clamping plate (409) by the third bolt (411). The bottom surface of the second clamping plate (410) and the top surface of the first clamping plate (409) form a cable clamping space.

3. The wire clamp structure for a transformer according to claim 1, characterized in that: The pre-installation base (401) of the wire clamp is a metal component. Its bottom is rigidly connected to the top of the transformer body (1) by welding or bolting. The top surface of the pre-installation base (401) is provided with an installation groove that matches the shape of the card block (402).

4. The wire clamp structure for a transformer according to claim 1, characterized in that: The slot (404) at the top of the card block (402) is a U-shaped groove structure, and the positioning block (405) fixedly installed inside it is a rectangular rubber block. An anti-slip pad is provided between the bottom surface of the positioning block (405) and the inner wall of the slot (404).

5. A wire clamp structure for a transformer according to claim 1, characterized in that: The guide rod sleeve (406) is a hollow cylinder made of insulating material. Its outer wall is provided with threaded holes that are compatible with the second bolt (407). The longitudinal flexible anti-slip texture (408) is distributed equidistantly along the inner wall of the guide rod sleeve (406) and has a depth of 1-2 mm.

6. A wire clamp structure for a transformer according to claim 2, characterized in that: The first clamping plate (409) and the second clamping plate (410) are both metal plates. The clamping surface of the second clamping plate (410) is provided with an arc-shaped groove coaxial with the third bolt (411), and the surface of the arc-shaped groove is provided with transverse anti-slip texture.

Images