Novel connecting structure of pulling plate and clamping piece

Abstract

The utility model discloses a novel connecting structure of a pulling plate and a clamping piece, and relates to the technical field of pulling plates of dry type transformers. The clamping device comprises a T-shaped block, a lower clamping plate is arranged below an upper clamping plate, a pulling plate is arranged between the upper clamping plate and the lower clamping plate, the upper clamping plate, the lower clamping plate and the pulling plate are clamped through the T-shaped block, a first limiting mechanism is fixedly connected to the front side of the T-shaped block, and the first limiting mechanism comprises a metal convex ring. According to the utility model, the T-shaped block is arranged, the pull plate is provided with the T-shaped notch, and the end part of the clamping piece is provided with the T-shaped block which can be embedded into the T-shaped notch, so that during assembly, the T-shaped block of the clamping piece is directly embedded into the T-shaped notch on the pull plate, and meanwhile, pin shaft parts are also reduced; and then the metal convex ring and the upper blocking piece play a blocking role, falling in the transferring process is prevented, the assembling difficulty is reduced, and meanwhile the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformer pull plates, in particular to a novel connection structure of a pull plate and a clamp. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to convert one level of voltage and current into another level of voltage and current of the same frequency and transmit electric energy. The transformer is an important device in power transmission and transformation equipment. It occupies an extremely critical position in the power grid and is the main equipment to ensure social production electricity. The structure and material of the transformer directly affect the quality and safety of power supply. There are many types of transformers, which can be classified according to cooling method, moisture-proof method, purpose, voltage regulation method, cooling medium and other methods; among them, those classified by cooling medium include dry-type transformers, liquid (oil) immersed transformers, etc.

[0003] According to the search, a wedge-shaped pull plate of a dry-type transformer with application number 201820090381.0 belongs to the technical field of pull plates of dry-type transformers. It is composed of an upper clamp, a lower clamp and a pull plate. Three wedge-shaped opening mounting holes are respectively provided on the upper clamp and the lower clamp. The upper clamp and the lower clamp are connected and fixed by clamping heads at both ends of the pull plate into the wedge-shaped opening mounting holes opened therein; when the wedge-shaped opening mounting holes are unfolded, the upper half is a wedge-shaped structure, and the lower half is a concave structure. The utility model uses a wedge-shaped structure to make the pull plate and the wedge-shaped opening mounting holes opened on the clamp directly cooperate and connect, cancels the original pull plate shaft, simplifies the structure and processing technology, and the wedge-shaped inclined surface of the pull plate and the wedge-shaped inclined surface of the clamp opening bear weight through face-to-face contact, which has a better load-bearing effect than the point-to-point contact of the original circular pull plate shaft structure, enhances the load-bearing capacity, and through the resistance positioning of the "tongue" structure on the clamp, the pull plate and the clamp are tightly combined and will not move at will.

[0004] In the existing new connection structure of the pull plate and the clamp, the transformer pull plate and the clamp are connected by a pin, that is, a through hole is provided on the pull plate and the clamp, and the pin is embedded in the through hole of the pull plate and the through hole of the clamp. The above connection structure has the following disadvantages: the pin and the through hole are not easy to align during installation, which increases the difficulty of assembly; and because the pin is not tightly matched with the through holes on the pull plate and the clamp, it is easy to fall off during installation, which makes assembly difficult and inefficient. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a novel connection structure between a pull plate and a clamp to solve the technical problem of easy falling during installation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel connection structure between a pull plate and a clamp, comprising a T-shaped block, a lower clamping plate is arranged below an upper clamping plate, a pull plate is arranged between the upper clamping plate and the lower clamping plate, the upper clamping plate, the lower clamping plate and the pull plate are engaged with each other through the T-shaped block, a first limiting mechanism is fixedly connected to the front side of the T-shaped block, the first limiting mechanism comprises a metal convex ring, and an upper blocking sheet is fixedly connected to one side of the metal convex ring;

[0007] By adopting the above technical solution and the novel connection structure between the pull plate and the clamp, the upper clamp plate, the lower clamp plate and the pull plate can be conveniently engaged with each other through T-blocks, thereby achieving rapid assembly and disassembly and improving assembly efficiency.

[0008] The pull plate is provided with a guide surface for easy installation;

[0009] By adopting the above technical solution, a guide surface for easy installation is provided on the pull plate, which provides an intuitive reference for workers, making it easier to align and insert the pull plate during the installation process, further simplifying the assembly steps.

[0010] There are two first limiting mechanisms, and the two first limiting mechanisms are arranged in a mirror image structure;

[0011] By adopting the above technical solution and providing two first limiting mechanisms in a mirror-image structure, the pull plate can be firmly limited from two directions, effectively preventing the pull plate from accidentally falling off or moving in any direction.

[0012] The upper blocking piece is arranged in an L-shaped structure;

[0013] By adopting the above technical solution, the upper blocking piece is arranged in an L-shaped structure, which can be effectively hooked on the edge of the upper clamping plate or the lower clamping plate, thereby increasing the stability and reliability of the clamping structure.

[0014] A second limiting mechanism is provided between the upper clamping plate, the lower clamping plate and the pull plate, the second limiting mechanism comprises a fixing block, and clamping holes are provided on both the upper clamping plate and the lower clamping plate;

[0015] By adopting the above technical solution, by setting up a second limiting mechanism and opening clamping holes on both the upper clamping plate and the lower clamping plate, additional fixing points are provided for the connection between the pull plate and the clamping plate, thereby enhancing the stability of the connection between the pull plate and the clamping plate.

[0016] The interior of the fixed block is slidably connected with a clamping column, one end of the clamping column is fixedly connected with a fixing plate, a spring is arranged between the fixing plate and the fixed block, and a first threaded hole is provided on the fixing plate;

[0017] By adopting the above technical solution, the flexibility and adjustability of the second limiting mechanism are achieved through the clamping column that is slidably connected inside the fixed block and the fixed plate that is fixedly connected at one end of the clamping column, so that the position of the clamping column can be easily adjusted during the installation process to adapt to upper clamping plates, lower clamping plates and pull plates of different sizes and installation requirements.

[0018] A guide block is fixedly connected to the clamping column, and a guide slope is provided on one side of the guide block;

[0019] By adopting the above technical solution, the guide block fixedly connected to the card column and the guide bevel opened on one side of the guide block can play a guiding role during the installation process, which can simplify the installation steps, make the card column easier to align and insert into the card hole, and improve the efficiency and success rate of installation.

[0020] The guide block is provided with a through hole, two through holes are provided, and one of the through holes is arranged opposite to the first threaded hole;

[0021] By adopting the above technical solution, by opening two through holes on the guide block and making one of the through holes opposite to the first threaded hole on the fixed plate, convenience is provided for subsequent reinforcement operations. Workers can pass fasteners such as bolts through the through holes and the first threaded holes to perform secondary fixation on the connection between the pull plate and the clamp.

[0022] The upper clamping plate and the lower clamping plate are provided with a second threaded hole, and the second threaded hole and the other through hole are arranged opposite to each other;

[0023] By adopting the above technical solution, by opening a second threaded hole on the upper clamping plate and the lower clamping plate, and arranging it opposite to another through hole on the guide block, a direct fixing point is provided for reinforcing the connection, so that workers can easily use fasteners such as bolts to more firmly connect the pull plate and the clamping plate through the through hole and the second threaded hole.

[0024] Four second limiting mechanisms are provided, and the four second limiting mechanisms are fixedly connected to the pulling plate.

[0025] By adopting the above technical solution and setting four second limiting mechanisms, more comprehensive fixation and limiting of the pull plate can be achieved, which significantly enhances the connection stability between the pull plate and the clamping plate and prevents the pull plate from moving or falling off in any direction.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model sets a T-block. Since the pull plate is provided with a T-notch, the end of the clamp is provided with a T-block that can be embedded in the T-notch. During assembly, the T-block of the clamp is directly embedded in the T-notch on the pull plate, and the pin shaft parts are reduced. Then the metal convex ring and the upper blocking sheet play a blocking role to prevent falling during transportation, which not only reduces the difficulty of assembly, but also reduces the cost;

[0028] 2. The utility model provides a guide surface, which can facilitate the insertion of the pull plate into the T-shaped notch, thereby achieving rapid installation, reducing friction during installation, and improving installation efficiency;

[0029] 3. The utility model sets a second limiting mechanism. When installing the pull plate, the guiding slope can be used to realize the automatic positioning and resetting of the clamping column, which simplifies the installation steps and improves the installation efficiency. The elastic force of the spring can ensure that the clamping column is tightly inserted into the clamping hole, thereby enhancing the stability of the connection. When the T-block on the pull plate is inserted between the clamping plates, it can be reinforced by screwing in bolts, which further improves the installation strength of the pull plate, makes the connection more stable, and can effectively prevent the pull plate from falling off or shifting during use, thereby ensuring the safety and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the connection structure between the transformer pull plate and the clamp of the utility model;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;

[0032] Figure 3 This is a rear perspective structural diagram of the second embodiment of the utility model;

[0033] Figure 4 It is a three-dimensional structural schematic diagram of the second limiting mechanism of the utility model.

[0034] In the figure: 1, upper clamping plate; 2, lower clamping plate; 3, pulling plate; 4, T-block; 5, first limiting mechanism; 501, metal convex ring; 502, upper blocking plate; 6, guiding surface; 7, second limiting mechanism; 701, fixing block; 702, clamping column; 703, fixing plate; 704, spring; 705, guiding block; 706, guiding inclined surface; 707, through hole; 708, first threaded hole; 709, second threaded hole; 710, clamping hole. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] Embodiment 1:

[0038] A new type of connection structure between the pull plate and the clamp, such as Figure 1-Figure 4 As shown, it includes a T-block 4, a lower splint 2 is arranged below the upper splint 1, a pull plate 3 is arranged between the upper splint 1 and the lower splint 2, the upper splint 1, the lower splint 2 and the pull plate 3 are clamped together through the T-block 4, and the front side of the T-block 4 is fixedly connected with a first limiting mechanism 5, the first limiting mechanism 5 includes a metal convex ring 501, and one side of the metal convex ring 501 is fixedly connected with an upper blocking plate 502. Through this new connection structure between the pull plate and the clamp, the upper splint 1, the lower splint 2 and the pull plate 3 can be conveniently clamped together through the T-block 4, thereby realizing rapid assembly and disassembly and improving assembly efficiency. At the same time, the first limiting mechanism 5 fixedly connected to the front side of the T-block 4, including the metal convex ring 501 and the upper blocking plate 502, can form a clamping structure, which effectively prevents the pull plate 3 from falling off the upper splint 1 and the lower splint 2 during movement, thereby enhancing the stability and safety of the connection structure.

[0039] See also Figure 1 , Figure 2 and Figure 3 A guide surface 6 for facilitating installation is provided on the pull plate 3. By providing the guide surface 6 for facilitating installation on the pull plate 3, an intuitive reference is provided for the workers, making it easier to align and insert the pull plate 3 during the installation process, further simplifying the assembly steps. At the same time, the design of the guide surface 6 also helps to reduce friction and resistance during assembly, thereby reducing the risk of damage that may occur during the assembly process and improving the smoothness and success rate of assembly.

[0040] See also Figure 1 , Figure 2 and Figure 3 There are two first limiting mechanisms 5, and the two first limiting mechanisms 5 are arranged in a mirror structure. By setting two first limiting mechanisms 5 in a mirror structure, the pull plate 3 can be firmly limited from two directions, effectively preventing the pull plate 3 from accidentally falling off or moving in any direction. At the same time, the setting of this mirror structure also enhances the symmetry and balance of the overall structure, so that the connecting structure can distribute the pressure more evenly when subjected to force, thereby improving the stability and bearing capacity of the overall structure.

[0041] See also Figure 1 , Figure 2 and Figure 3The upper blocking piece 502 is arranged in an L-shaped structure. The upper blocking piece 502 is arranged in an L-shaped structure, which can be effectively hooked on the edge of the upper clamping plate 1 or the lower clamping plate 2, thereby increasing the stability and reliability of the clamping structure. At the same time, the upper blocking piece 502 with an L-shaped structure can prevent the pull plate 3 from accidentally falling off or shifting when subjected to external force, thereby further ensuring the safety of the connection structure.

[0042] The implementation principle of the utility model is as follows: first, the worker pulls the metal convex ring 501 and pulls the pull plate 3 outward, driving the metal convex ring 501 and the upper blocking plate 502 to pass through the T-shaped openings reserved on the upper clamping plate 1 and the lower clamping plate 2, and then get stuck on one side of the upper clamping plate 1 and the lower clamping plate 2. At this time, the metal convex ring 501 and the upper blocking plate 502 form a clamping structure to prevent the pull plate 3 from falling off the upper clamping plate 1 and the lower clamping plate 2 during movement. At the same time, the T-block 4 on the pull plate 3 is embedded in the corresponding position between the upper clamping plate 2 and the lower clamping plate 3 to ensure that they are engaged with each other through the T-block 4 to form a stable connection structure.

[0043] Embodiment 2:

[0044] See also Figure 4 A second limiting mechanism 7 is arranged between the upper splint 1, the lower splint 2 and the pull plate 3, and the second limiting mechanism 7 includes a fixing block 701. A clamping hole 710 is provided on both the upper splint 1 and the lower splint 2. By setting the second limiting mechanism 7 and providing clamping holes 710 on both the upper splint 1 and the lower splint 2, an additional fixing point is provided for the connection between the pull plate 3 and the splint, thereby enhancing the connection stability between the pull plate 3 and the splint. At the same time, the fixing block 701 in the second limiting mechanism 7 can be accurately embedded in the clamping hole 710, thereby ensuring the precise alignment between the components, which not only improves the assembly accuracy, but also further enhances the stability and carrying capacity of the overall structure.

[0045] See also Figure 4 The fixing block 701 is internally slidably connected with a card column 702, one end of the card column 702 is fixedly connected with a fixing plate 703, a spring 704 is arranged between the fixing plate 703 and the fixing block 701, and a first threaded hole 708 is opened on the fixing plate 703. Through the card column 702 slidably connected inside the fixing block 701, and the fixing plate 703 fixedly connected at one end of the card column 702, the flexibility and adjustability of the second limiting mechanism 7 are realized, so that the position of the card column 702 can be easily adjusted during the installation process to adapt to the upper clamping plate 1, lower clamping plate 2 and pulling plate 3 of different sizes and installation requirements. At the same time, by arranging a spring 704 between the fixing plate 703 and the fixing block 701, elastic support is provided for the card column 702, so that it can automatically reset during the installation process and tightly fit into the card hole 710, thereby enhancing the stability of the connection.

[0046] See also Figure 4A guide block 705 is fixedly connected to the card column 702, and a guide bevel 706 is provided on one side of the guide block 705. The guide block 705 fixedly connected to the card column 702 and the guide bevel 706 on one side of the guide block 705 can play a guiding role in the installation process, which can simplify the installation steps, make the card column 702 more easily aligned and inserted into the card hole 710, and improve the efficiency and success rate of installation. At the same time, the setting of the guide bevel 706 also reduces the friction and resistance during installation, reduces the problems such as jamming or misalignment that may occur during the installation process, and makes the installation process smoother, thereby reducing the installation time and labor costs.

[0047] See also Figure 4 A through hole 707 is provided on the guide block 705, and there are two through holes 707, one of which is opposite to the first threaded hole 708. By providing two through holes 707 on the guide block 705 and making one of the through holes 707 opposite to the first threaded hole 708 on the fixing plate 703, convenience is provided for subsequent reinforcement operations. Workers can pass fasteners such as bolts through the through hole 707 and the first threaded hole 708 to perform secondary fixation on the connection between the pull plate 3 and the splint. At the same time, the design of the two through holes 707 also increases the flexibility of the reinforcement method. Workers can choose appropriate through holes 707 for reinforcement according to actual needs, so as to better adapt to different working environments and usage requirements.

[0048] See also Figure 4 A second threaded hole 709 is provided on the upper clamping plate 1 and the lower clamping plate 2, and the second threaded hole 709 and another through hole 707 are arranged opposite to each other. By providing the second threaded hole 709 on the upper clamping plate 1 and the lower clamping plate 2 and arranging them opposite to another through hole 707 on the guide block 705, a direct fixing point is provided for reinforcing the connection, so that workers can easily use fasteners such as bolts to more firmly connect the pull plate 3 and the clamping plate through the through hole 707 and the second threaded hole 709. At the same time, the provision of the second threaded hole 709 also improves the maintainability and adjustability of the overall structure. When it is necessary to disassemble or replace parts, workers can easily loosen the bolts and perform necessary maintenance or adjustments.

[0049] See also Figure 4 There are four second limiting mechanisms 7, and the four second limiting mechanisms 7 are fixedly connected to the pull plate 3. By setting four second limiting mechanisms 7, the pull plate 3 can be more comprehensively fixed and limited, which significantly enhances the connection stability between the pull plate 3 and the clamping plate, and prevents the pull plate 3 from moving or falling off in any direction. At the same time, the uniform distribution of the four second limiting mechanisms 7 also ensures that the pull plate 3 can evenly disperse the pressure when subjected to force, avoiding structural damage caused by excessive force on a single point, thereby improving the stability and safety of the overall structure.

[0050] The implementation principle of the utility model is: first, when installing the pull plate 3, push the pull plate 3. At this time, the guiding inclined surface 706 and the upper clamping plate 1 are in contact with the lower clamping plate 2. The guiding inclined surface 706 drives the clamping column 702 to overcome the elastic force of the spring 704 and move downward. When the T-block 4 on the pull plate 3 is inserted into the upper clamping plate 1 and the lower clamping plate 2, the spring 704 pulls the clamping column 702 to reset through the fixing plate 703 and inserts it into the clamping hole 710 to realize the positioning of the pull plate 3. At this time, the through hole 707 and the first threaded hole 708 and the second threaded hole 709 are relative, and bolts can be screwed in for reinforcement to improve the installation strength of the pull plate 3.

[0051] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0052] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A new type of connection structure between a pull plate and a clamp, characterized in that: It comprises a T-shaped block (4), a lower clamping plate (2) is arranged below an upper clamping plate (1), a pull plate (3) is arranged between the upper clamping plate (1) and the lower clamping plate (2), the upper clamping plate (1), the lower clamping plate (2) and the pull plate (3) are engaged with each other via the T-shaped block (4), a first limiting mechanism (5) is fixedly connected to the front side of the T-shaped block (4), the first limiting mechanism (5) comprises a metal convex ring (501), and an upper blocking plate (502) is fixedly connected to one side of the metal convex ring (501); The pull plate (3) is provided with a guide surface (6) for facilitating installation; Two of the first limiting mechanisms (5) are provided, and the two first limiting mechanisms (5) are arranged in a mirror image structure; The upper blocking sheet (502) is arranged in an L-shaped structure; A second limiting mechanism (7) is provided between the upper clamping plate (1), the lower clamping plate (2) and the pulling plate (3), the second limiting mechanism (7) comprising a fixing block (701), and a clamping hole (710) is provided on both the upper clamping plate (1) and the lower clamping plate (2); The fixing block (701) is slidably connected to a clamping column (702) inside, one end of the clamping column (702) is fixedly connected to a fixing plate (703), a spring (704) is provided between the fixing plate (703) and the fixing block (701), and a first threaded hole (708) is provided on the fixing plate (703); A guide block (705) is fixedly connected to the clamping column (702), and a guide inclined surface (706) is provided on one side of the guide block (705); The guide block (705) is provided with a through hole (707), and two through holes (707) are provided, and one of the through holes (707) and the first threaded hole (708) are arranged opposite to each other; The upper clamping plate (1) and the lower clamping plate (2) are provided with a second threaded hole (709), and the second threaded hole (709) and the other through hole (707) are arranged opposite to each other; Four of the second limiting mechanisms (7) are provided, and the four second limiting mechanisms (7) are fixedly connected to the pull plate (3).

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