Device and method for assembling secondary terminal outlet box cover of voltage transformer

Abstract

The invention provides an assembling device and method for a secondary terminal outlet box cover of a voltage transformer, and belongs to the technical field of box cover assembling, the assembling device comprises a secondary terminal outlet box cover, the secondary terminal outlet box cover is connected with a secondary terminal outlet box through a shaft pin, a fastener is installed on the shaft pin, the fastener is a fastening nut, the shaft pin is of a stud structure, and the secondary terminal outlet box cover is connected with the secondary terminal outlet box through the shaft pin. A fixing part is installed on one side of the secondary terminal outlet box cover, a hinge arm is installed on the other side of the secondary terminal outlet box cover, a hinge seat is installed on one side of the secondary terminal outlet box, a long arc hole is formed in the hinge seat, the hinge seat is connected with the hinge arm through a shaft pin, and a fixing nut is installed on the other side of the secondary terminal outlet box cover and is in a butterfly shape. According to the invention, the processing error can be reduced, the influence on the sealing performance of the secondary terminal outlet box cover is reduced, the sealing problem caused by non-uniform pressure of the sealing element can be avoided when the box door is closed, and the sealing reliability and durability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of box cover assembly, and in particular to a device and method for assembling a secondary terminal outlet box cover of a voltage transformer. Background Art

[0002] Capacitor voltage transformer is the main equipment in the power system, mainly used for voltage measurement and carrier communication. The sealing requirements of the secondary terminal outlet box of capacitor voltage transformer are relatively high, and need to meet IP55 and above requirements, especially in areas with heavy rain or strong wind and sand, and the sealing requirements are higher. However, it is not a precision instrument itself, and there are errors in the processing process, which will affect the sealing performance of the conventional hinged box door; therefore, a secondary terminal outlet box door assembly method is designed to reduce the impact of processing errors on the sealing performance.

[0003] At present, there are two main assembly methods for the secondary terminal outlet box cover of capacitive voltage transformers. One is a cover that is separate from the terminal box and fastened with bolts. The cover needs to be removed during maintenance. The advantage of this structure is that it is relatively simple in structure and has low manufacturing and installation costs. However, its significant limitation lies in the inconvenience during maintenance. Since the cover needs to be completely separated from the terminal box, more time and effort are required to remove and reinstall the cover during the maintenance process, which not only increases the complexity of the operation, but may also have a certain impact on the normal operation of the equipment; the other is a hinged door assembled as one with the terminal box. During maintenance, only the locking bolts need to be opened, which is relatively convenient to operate. However, since the hinged door is subjected to a certain pressure during the opening and closing process, if the seal is improperly designed or installed, uneven pressure may occur, resulting in sealing problems, which will not only affect the waterproof and dustproof performance of the equipment, but also damage the internal components of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a secondary terminal outlet box cover assembly device and method for a voltage transformer to overcome the problems existing in the prior art. The present invention can not only reduce processing errors and reduce the impact on the sealing performance of the secondary terminal outlet box cover, but also avoid sealing problems caused by uneven pressure on the sealing member when the box door is closed, thereby improving the reliability and durability of the seal.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A secondary terminal outlet box cover assembly device for a voltage transformer comprises a secondary terminal outlet box cover, wherein the secondary terminal outlet box cover is connected to the secondary terminal outlet box via an axle pin, and a fastener is installed on the axle pin; A fixing piece is installed on one side of the secondary terminal outlet box cover, and a hinge arm is installed on the other side; A hinge seat is installed on one side of the secondary terminal outlet box, and a fixing nut is installed on the other side; The hinge seat is connected to the hinge arm via an axle pin; Furthermore, the shaft pin is a stud bolt structure; Further, the fastener is a fastening nut; Furthermore, a long arc hole is provided inside the hinge seat; Furthermore, the number of hinge seats and hinge arms is equal; Furthermore, the number of the fixing members and the fixing nuts is equal and they are symmetrically arranged; Furthermore, the secondary terminal outlet box cover and the secondary terminal outlet box are sealed by the fixing piece and the fixing nut; Furthermore, the fixing nut is butterfly-shaped.

[0006] A method for assembling a secondary terminal outlet box cover of a voltage transformer, based on the above-mentioned device for assembling a secondary terminal outlet box cover of a voltage transformer, comprises the following steps: (1) Rotate the secondary terminal outlet box cover to make the secondary terminal outlet box cover fit with the secondary terminal outlet box; (2) Fix the fixing nut and the fixing piece; (3) Adjust the shaft pin to the appropriate position to close the secondary terminal outlet box cover; Furthermore, the above (1) is specifically as follows: the secondary terminal outlet box cover is driven to rotate by the rotation of the shaft pin in coordination with the hinge seat and the hinge arm, so that the secondary terminal outlet box cover and the secondary terminal outlet box are fitted together.

[0007] The above technical solution has the following advantages or beneficial effects: The present invention provides an assembly device for a secondary terminal outlet box cover of a voltage transformer, which can ensure the matching accuracy between the secondary terminal outlet box cover and the secondary terminal outlet box, reduce the gap caused by processing errors, thereby improving the overall sealing performance, helping to prevent moisture, dust or other pollutants from entering the box interior, and protecting the normal operation of the voltage transformer; utilizing the fixing method of the axle pin and the fastening nut, the hinged setting of the hinge arm and the hinge seat, and the setting of the fixing piece and the fixing nut, it can be ensured that when the box door is closed, the secondary terminal outlet box cover can be pressed on the secondary terminal outlet box stably and evenly, thereby improving the reliability and durability of the seal, and at the same time, it can also enable the secondary terminal outlet box cover to maintain a stable movement trajectory during the opening and closing process, reducing the movement errors caused by the movement errors. The risk of wear or damage caused by instability helps to improve the structural strength and stability of the entire assembly device, and can also make the installation and removal of the secondary terminal outlet box cover easier, providing users with a more convenient and efficient user experience; the axle pin connection provides reliable mechanical support to ensure that the hinge arm will not fall off or loosen during rotation, further improving the sealing performance of the product, ensuring a firm connection between the two, and effectively preventing loosening or falling off due to vibration or external force, thereby improving the structural stability of the entire assembly device and further enhancing the sealing performance of the product; the design of the axle pin connection makes the connection between the hinge seat and the hinge arm more flexible and adjustable, which can adapt to outlet box covers of different sizes and shapes, as well as different installation environments and requirements.

[0008] Furthermore, the stud bolt structure means that both ends of the axle pin have threads, which can firmly connect the hinge seat and the hinge arm or other related parts. The stud bolt structure enables the axle pin to provide a more stable and reliable connection when connecting the secondary terminal outlet box cover and the secondary terminal outlet box, which helps to reduce the problem of reduced sealing performance caused by loose or unstable connection; at the same time, the axle pin with a stud bolt structure can also reduce the number and complexity of parts in the assembly process. Since the axle pin itself has integrated the connection function, no additional connectors or fasteners are required, which simplifies the assembly process and improves production efficiency.

[0009] Furthermore, the main function of the fastening nut as a fastener is to ensure the tight connection between the secondary terminal outlet box cover and the voltage transformer body or other related components, which can significantly improve the overall stability of the assembly structure and prevent loosening or falling off due to vibration or external force.

[0010] Furthermore, the long arc hole allows the hinge arm and the axle pin to have a more flexible range of motion when rotating, which facilitates the closing of the box door; secondly, compared with straight holes or short arc holes, the long arc hole can more effectively disperse the stress generated during rotation, help reduce stress concentration, and reduce the risk of component wear or damage due to long-term stress; in addition, the long arc hole makes it easier to adjust the position and angle of the hinge arm or the axle pin during subsequent maintenance and adjustment, which helps to ensure that the opening and closing actions of the outlet box cover are always kept in the best state, thereby improving efficiency and safety.

[0011] Furthermore, when the number of hinge seats and hinge arms is equal, they can be evenly distributed on both sides of the box cover, thereby providing balanced and uniform supporting force, making the device evenly stressed and reducing the risk of deformation or damage due to uneven force; an equal number of hinge seats and hinge arms means that each hinge point has corresponding support and fixation, making the box cover smoother when opened and closed, reducing sticking or loosening.

[0012] Furthermore, equal and symmetrically arranged fixings and fixing nuts can provide a stronger connection force, which is evenly distributed in key positions of the entire assembly device, effectively resisting external loads and vibrations, and ensuring the sealing and stability of the connection.

[0013] Furthermore, through the close fit of the fixings and the fixing nuts, an effective seal can be formed between the secondary terminal outlet box cover and the secondary terminal outlet box, which can prevent dust, moisture and other contaminants from entering the box, thereby protecting the internal electrical components and connecting lines and ensuring the normal operation of the voltage transformer; the fit of the fixings and the fixing nuts also enhances the structural connection between the secondary terminal outlet box cover and the secondary terminal outlet box.

[0014] Furthermore, the butterfly nut allows the operator to easily tighten and loosen without using additional tools, which simplifies the assembly process, reduces assembly time and cost, and improves work efficiency; due to its unique shape, the butterfly nut allows the tightening force to be felt more intuitively during the rotation process, thereby helping the operator to more accurately control the tightening degree and avoid assembly problems caused by over-tightening or over-loosening.

[0015] The present invention also provides a method for assembling a secondary terminal outlet box cover of a voltage transformer, which ensures that the secondary terminal outlet box cover and the secondary terminal outlet box are in a fitted state by rotating the secondary terminal outlet box cover, and then fixing nuts and fixings, thereby ensuring a close fit between the secondary terminal outlet box cover and the box body, and adjusting the axle pin to a suitable position further ensures that the box cover is firmly closed, thereby improving the overall assembly accuracy and stability; the tight assembly can prevent external impurities such as dust and moisture from entering the interior of the secondary terminal outlet box, protecting the internal electrical components from damage, and at the same time, the stable box cover also reduces the risk of loosening or damage caused by vibration or external force impact, thereby improving the safety and reliability of the entire voltage transformer; the assembly process is guided by clear steps (rotating to fit, fixing nuts and fixings, adjusting the axle pin position), making the assembly work more orderly and efficient, which not only reduces the assembly time, but also reduces the error rate in the assembly process.

[0016] Furthermore, through the cooperation of the axle pin, hinge seat and hinge arm, a rotational connection between the secondary terminal outlet box cover and the secondary terminal outlet box is achieved, which not only enables the box cover to be easily opened and closed, but also allows fine-tuning during the assembly process to ensure that the box cover and the box body fit perfectly; the synergistic effect of the axle pin, hinge seat and hinge arm provides a stable support and rotation point for the secondary terminal outlet box cover, which can prevent the box cover from being deformed or loosened due to external forces during the assembly process, thereby improving the stability and reliability of the entire assembly structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a secondary terminal outlet box cover assembly device of a voltage transformer according to the present invention; Figure 2 It is a top view of a secondary terminal outlet box cover assembly device of a voltage transformer according to the present invention; In the figure, 1-secondary terminal outlet box cover; 2-secondary terminal outlet box; 3-hinge seat; 4-hinge arm; 5-axle pin; 6-fastening nut; 7-fixing piece; 8-fixing nut. DETAILED DESCRIPTION

[0018] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally disposed component.

[0020] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1: like Figure 1 and Figure 2 As shown, the present invention provides a secondary terminal outlet box cover assembly device for a voltage transformer, comprising a secondary terminal outlet box cover 1, the secondary terminal outlet box cover 1 is connected to a secondary terminal outlet box 2 through an axle pin 5, and a fastener is installed on the axle pin 5; a fixing piece 7 is installed on one side of the secondary terminal outlet box cover 1, and a hinge arm 4 is installed on the other side; a hinge seat 3 is installed on one side of the secondary terminal outlet box 2, a long arc hole is arranged inside the hinge seat 3, and a fixing nut 8 is installed on the other side, and the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 are sealed by the fixing piece 7 and the fixing nut 8; Preferably, the shaft pin 5 is a stud bolt structure, and the hinge seat 3 is connected to the hinge arm 4 via the shaft pin 5; Preferably, the number of hinge seats 3 and hinge arms 4 is equal; Preferably, the fastener is a fastening nut 6; Preferably, the number of fixing members 7 and fixing nuts 8 is equal and they are symmetrically arranged; Preferably, the fixing nut 8 is butterfly-shaped.

[0023] The present invention also provides a method for assembling a secondary terminal outlet box cover of a voltage transformer, based on the above-mentioned device for assembling a secondary terminal outlet box cover of a voltage transformer, comprising the following steps: (1) Rotate the secondary terminal outlet box cover 1 so that the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 fit together; (2) Fix the fixing nut 8 and the fixing member 7; (3) Adjust the shaft pin 5 to a suitable position to close the secondary terminal outlet box cover 1; Preferably, (1) is specifically as follows: the secondary terminal outlet box cover 1 is driven to rotate by the shaft pin 5 in cooperation with the hinge seat 3 and the hinge arm 4, so that the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 are fitted together.

[0024] Embodiment 2: like Figure 1 and Figure 2 As shown, the present invention provides an assembly device for a secondary terminal outlet box cover of a voltage transformer, comprising a secondary terminal outlet box cover 1 and a secondary terminal outlet box 2; a fixing part 7 is installed on one side of the secondary terminal outlet box cover 1, and a hinge arm 4 is welded on the other side; a hinge seat 3 is installed on one side of the secondary terminal outlet box 2, and a long arc hole is arranged inside the hinge seat 3, so that the hinge arm 4 and the axle pin 5 can have a more flexible range of activities when rotating, which is convenient for closing the box door. At the same time, compared with a straight hole or a short arc hole, the long arc hole can more effectively disperse the stress generated during rotation, which helps to reduce stress concentration and reduce the risk of component wear or damage caused by long-term stress. A fixing nut 8 is installed on the other side; the hinge arm 4 of the secondary terminal outlet box cover 1 is fixedly connected to the hinge seat 3 of the secondary terminal outlet box 2 through the axle pin 5 and the fastening nut 6, and the axle pin 5 is a stud bolt structure, so that the axle pin 5 is connected to the secondary terminal outlet box cover 1 and the secondary terminal outlet When the terminal box 2 is opened, it can provide a more stable and reliable connection, which helps to reduce the problem of reduced sealing performance due to loose or unstable connection; the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 are sealed by the fixing piece 7 and the fixing nut 8, which can ensure that when the box door is closed, the secondary terminal outlet box cover 1 can be pressed on the secondary terminal outlet box 2 stably and evenly, thereby improving the reliability and durability of the seal, forming an effective seal, and preventing dust, moisture and other pollutants from entering the box, thereby protecting the internal electrical components and connection lines, ensuring the normal operation of the voltage transformer, and at the same time, it can also enable the secondary terminal outlet box cover 1 to maintain a stable motion trajectory during the opening and closing process, reducing the risk of wear or damage caused by unstable movement, helping to improve the structural strength and stability of the entire assembly device, and can also make the installation and removal of the secondary terminal outlet box cover 1 easier; Preferably, the shaft pin 5 penetrates and connects the hinge seat 3 and the hinge arm 4, providing reliable mechanical support, ensuring that the hinge arm 4 will not fall off or loosen when rotating, further improving the sealing performance of the product, ensuring a firm connection between the two, and effectively preventing loosening or falling off due to vibration or external force, thereby improving the structural stability of the entire assembly device and further enhancing the sealing performance of the product; Preferably, the number of hinge seats 3 and hinge arms 4 is equal, both are 2, and can be evenly distributed on both sides of the box cover, thereby providing a balanced and uniform supporting force, so that the device is evenly stressed; Preferably, the number of the fastening nuts 6 is 2, which can provide a more reliable connection and fixation, can effectively prevent the connection failure caused by looseness or vibration, ensure the stable connection between the hinge seat 3 and the hinge arm 4, can effectively prevent the loosening phenomenon, improve the stability of the entire assembly device, and thus improve the sealing properties of the box door; Preferably, the number of the fixing members 7 and the fixing nuts 8 are both two and they are symmetrically arranged, which can provide a stronger connection force, and by being evenly distributed in various key parts of the entire assembly device, effectively resist external loads and vibrations, and ensure the sealing and stability of the connection; Preferably, the fixing nut 8 is butterfly-shaped, so that the operator can easily perform tightening and loosening operations without using additional tools, thereby simplifying the assembly process, reducing assembly time and cost, and improving work efficiency.

[0025] The present invention also provides a method for assembling a secondary terminal outlet box cover of a voltage transformer, based on the above-mentioned device for assembling a secondary terminal outlet box cover of a voltage transformer, comprising the following steps: (1) The secondary terminal outlet box cover 1 is driven to rotate by the rotation of the shaft pin 5 in cooperation with the hinge seat 3 and the hinge arm 4, so that the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 are fitted together; the rotation connection between the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 is realized through the cooperation of the shaft pin 5, the hinge seat 3 and the hinge arm 4, which not only makes the box cover easy to open and close, but also allows fine-tuning during the assembly process to ensure that the box cover and the box body fit perfectly; the synergistic effect of the shaft pin 5, the hinge seat 3 and the hinge arm 4 provides a stable support and rotation point for the secondary terminal outlet box cover 1, which can prevent the box cover from being deformed or loosened due to external forces during the assembly process, thereby improving the stability and reliability of the entire assembly structure; (2) Fixing the fixing nut 8 and the fixing piece 7 can ensure a tight fit between the secondary terminal outlet box cover 1 and the box body. (3) Adjust the axle pin 5 to the appropriate position to close the secondary terminal outlet box cover 1. Adjusting the axle pin 5 further ensures that the box cover is firmly closed, thereby improving the overall assembly accuracy and stability. Tight assembly can prevent external impurities such as dust and moisture from entering the interior of the secondary terminal outlet box 2, protecting the internal electrical components from damage. At the same time, the stable box cover also reduces the risk of loosening or damage caused by vibration or external force impact, thereby improving the safety and reliability of the entire voltage transformer. The assembly process is guided by clear steps (rotating to fit, fixing nuts and fixings, adjusting the axle pin position), making the assembly work more orderly and efficient, which not only reduces the assembly time, but also reduces the error rate during the assembly process.

[0026] The structure and working principle of the present invention are further described below: The object of the present invention is to provide a device and method for assembling the secondary terminal outlet box cover of a voltage transformer. When using the device, the secondary terminal outlet box cover 1 and the secondary terminal outlet box 2 are rotated to fit together through the shaft pin 5 in conjunction with the hinge seat 3 and the hinge arm 4, and then the fixing nut 8 and the fixing piece 7 are fixed, and the shaft pin 5 is adjusted to a suitable position again to close the box door. By fixing both sides at the same time, the hinge seat 3, the hinge arm 4, the shaft pin 5, the fastening nut 6, the fixing piece 7 and the fixing nut 8 are evenly pressed, which can improve the sealing performance of the secondary terminal outlet box 2.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A secondary terminal outlet box cover assembly device for a voltage transformer, characterized in that: It comprises a secondary terminal outlet box cover (1), the secondary terminal outlet box cover (1) is connected to the secondary terminal outlet box (2) via an axle pin (5), and a fastener is installed on the axle pin (5); A fixing member (7) is installed on one side of the secondary terminal outlet box cover (1), and a hinge arm (4) is installed on the other side; A hinge seat (3) is installed on one side of the secondary terminal outlet box (2), and a fixing nut (8) is installed on the other side; The hinge seat (3) is connected to the hinge arm (4) via an axle pin (5).

2. A secondary terminal outlet box cover assembly device for a voltage transformer according to claim 1, characterized in that: The shaft pin (5) is a stud bolt structure.

3. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 2, characterized in that: The fastener is a fastening nut (6).

4. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 1, characterized in that: A long arc hole is arranged inside the hinge seat (3).

5. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 1, characterized in that: The number of hinge seats (3) and hinge arms (4) is equal.

6. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 1, characterized in that: The number of the fixing members (7) and the fixing nuts (8) are equal and they are symmetrically arranged.

7. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 1, characterized in that: The secondary terminal outlet box cover (1) and the secondary terminal outlet box (2) are sealed by means of a fixing piece (7) and a fixing nut (8).

8. The secondary terminal outlet box cover assembly device of a voltage transformer according to claim 1, characterized in that: The fixing nut (8) is butterfly-shaped.

9. A method for assembling a secondary terminal outlet box cover of a voltage transformer, based on a device for assembling a secondary terminal outlet box cover of a voltage transformer according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, rotating the secondary terminal outlet box cover (1) so that the secondary terminal outlet box cover (1) and the secondary terminal outlet box (2) fit together; S2, fixing the fixing nut (8) and the fixing member (7); S3, adjust the shaft pin (5) to a suitable position to close the secondary terminal outlet box cover (1).

10. A method for assembling a secondary terminal outlet box cover of a voltage transformer according to claim 9, characterized in that: The S1 specifically comprises: the shaft pin (5) cooperates with the hinge seat (3) and the hinge arm (4) to rotate, thereby driving the secondary terminal outlet box cover (1) to rotate, so that the secondary terminal outlet box cover (1) and the secondary terminal outlet box (2) fit together.

Images