Fuel tank connecting pipe fixing device

Abstract

The utility model discloses a tank connecting pipe fixing device, comprising a U-shaped clamp, an embedding groove, a limiting nail and a C-shaped guard plate, wherein embedding grooves are provided on both sides of the U-shaped clamp, the design of the U-shaped clamp can provide good covering and stability, the embedding groove plays a role of fixing and supporting the tank connecting pipe, and limiting nails are fixedly arranged on the sides of the embedding groove. The fixing of the limiting nails can effectively prevent the bracket from loosening due to vibration or external force during use, thereby improving the safety of the connection; in addition, a C-shaped guard plate is arranged at the end of the tightening bolt, and the C-shaped guard plate can provide additional protection for the connecting pipe, preventing the tightening bolt from being directly impacted or damaged by external factors during use, causing wear of the coating at the contact part between the tank bracket and the connecting pipe, while also increasing the stability and safety of the connection, and improving the reliability of the overall structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer manufacturing, and in particular relates to an oil tank connecting pipe fixing device. Background Art

[0002] In the precision manufacturing process of transformer oil tanks, the pre-installation stage is undoubtedly the top priority of the entire process. This link plays a decisive role in ensuring the stability and safety of the subsequent operation of the oil tank. However, the pre-installation stage often faces a thorny challenge, which is the fixation of multiple small downward-leading joints inside the oil tank. As an important component of the oil tank, these small joints carry the key task of conveying and conducting transformer oil or other key fluids. However, during the pre-installation process, due to the large number and different sizes of these small joints, and the lack of special tooling to match them, the fixing work becomes extremely difficult. Traditional fixing methods often fail to ensure the stability and accuracy of the small joints, resulting in problems such as the small joints not being vertical and the flange surface not being horizontal after the pre-installation is completed.

[0003] These problems not only seriously affect the overall appearance and aesthetics of the oil tank, but more importantly, they may pose a potential threat to the performance and safety of the transformer. Non-vertical small connecting pipes may lead to poor fluid transportation, affecting the heat dissipation and cooling effect of the transformer; and non-horizontal flange surfaces may lead to poor sealing, causing safety hazards such as oil leakage.

[0004] More seriously, these problems often lead to the need for oil tank repair, which not only increases production costs, but also greatly prolongs the production cycle of the product. In particular, during pre-installation, the process of installing the U-shaped clamp of the connecting pipe according to the drawing requirements takes up to 4 hours due to the need for precise measurement and careful adjustment, which greatly restricts the production efficiency of the oil tank.

[0005] By solving the problem of fixing small coupling pipes, not only can the overall quality of the transformer oil tank be improved, but also the performance and safety of the transformer can be ensured, providing a solid guarantee for the stable operation of the power system. Summary of the invention

[0006] The purpose of the utility model is to overcome the above-mentioned problems and provide a fuel tank connecting pipe fixing device, which can ensure the verticality and horizontality of the connecting pipe assembly, avoid the wear of the coating at the contact part between the fuel tank bracket and the connecting pipe, and improve the quality and efficiency of the fuel tank assembly and installation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a tank connecting pipe fixing device, comprising a U-shaped clamp, two sides of the U-shaped clamp are provided with embedding grooves, the sides of the embedding grooves are fixedly provided with limiting nails, the ends of the U-shaped clamp are provided with through holes, nuts are fixedly provided at the through holes, a tightening bolt is screwed into the nut, and a C-shaped guard plate is provided at the ends of the tightening bolts.

[0009] A further improvement of the present invention is that the opening directions of the embedding grooves on both sides of the U-shaped clip are the same.

[0010] A further improvement of the utility model is that the C-shaped guard plate is fixed to the end of the tightening bolt by welding.

[0011] A further improvement of the utility model is that the bottom of the C-shaped guard plate is provided with an internal thread, the diameter of which is 16 to 20 mm.

[0012] A further improvement of the utility model is that an arc-shaped plate with a width of 20 mm is welded to the end of the C-shaped guard plate.

[0013] A further improvement of the utility model is that a protective gasket is pasted inside the C-shaped guard plate, and a rubber sleeve is sleeved on the limiting nail.

[0014] A further improvement of the utility model is that the protective gasket and the rubber sleeve are both made of rubber or silicone.

[0015] A further improvement of the utility model is that the diameter of the limiting nail is 8 mm and the length is 8 mm to 10 mm.

[0016] A further improvement of the utility model is that the inner diameter of the nut is consistent with the size of the through hole at the end of the U-shaped clamp.

[0017] A further improvement of the utility model is that the nut is a stainless steel nut, and the tightening bolt is a stainless steel bolt.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a U-shaped clamp with embedded grooves on both sides. The design of the U-shaped clamp can provide good covering and stability. The embedded grooves play a role of fixing and supporting the fuel tank connecting pipe. Limiting nails are fixedly arranged on the sides of the embedded grooves. The fixing of the limiting nails can effectively prevent the bracket from loosening due to vibration or external force during use, thereby improving the safety of the connection. In addition, a through hole is provided at the end of the U-shaped clamp, and a nut is fixedly arranged at the through hole. The setting of the nut provides convenience for the installation of the tightening bolt, so that the tightening bolt can be easily screwed into the nut to further tighten the connecting pipe. A C-shaped guard plate is provided at the end of the tightening bolt. The C-shaped guard plate can provide additional protection for the connecting pipe, prevent the tightening bolt from being directly impacted or damaged by external factors during use, causing wear of the coating at the contact part between the fuel tank bracket and the connecting pipe, and also increase the stability and safety of the connection, thereby improving the reliability of the overall structure.

[0020] Furthermore, the opening directions of the embedding grooves on both sides of the U-shaped clip are the same, which can ensure the consistency of the U-shaped clip during operation, and there is no need to adjust the direction of the U-shaped clip during installation or removal.

[0021] Furthermore, a protective gasket is pasted inside the C-shaped guard plate, and a rubber sleeve is covered on the limit pin. The protective gasket can effectively reduce the direct contact between the C-shaped guard plate and the fuel tank bracket and the connecting pipe, reduce the wear caused by friction, vibration and other reasons, and thus extend the service life of the C-shaped guard plate; the rubber sleeve can protect the limit pin from corrosion and wear, and when the limit pin contacts the fixing part, the rubber sleeve can play a buffering role and reduce the noise caused by metal collision.

[0022] Furthermore, the protective gasket and rubber sleeve are both made of rubber or silicone. Rubber has excellent elasticity, wear resistance and corrosion resistance, can quickly recover to its original state after being subjected to external force, maintain good performance during long-term use, reduce failure caused by wear, and can maintain stable performance in harsh environments such as humidity, acid and alkali; silicone has better high temperature resistance and beneficial sealing, can maintain stable performance in high temperature environment, and is not easy to age or deform.

[0023] Furthermore, the inner diameter of the nut is consistent with the size of the through hole at the end of the U-shaped clamp, which can ensure that the tightening bolt can smoothly pass through the through hole, thereby forming a stable connection to the fuel tank bracket and reducing wear and loosening caused by friction or vibration.

[0024] Furthermore, the nuts and tightening bolts are made of stainless steel. The stainless material has a high strength and hardness, so that the nuts and tightening bolts can withstand large tensile and shear forces. At the same time, stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances, including acids, alkalis, salts, etc. In a humid and highly corrosive environment, stainless steel nuts and tightening bolts can maintain long-term stable performance and are not easy to rust or corrode, thereby extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention.

[0026] Figure 1 This is a front view of a fuel tank connecting pipe fixing device of the utility model;

[0027] Figure 2 This is a top view of a fuel tank connecting pipe fixing device of the utility model;

[0028] Figure 3 This is a specific use diagram of a fuel tank connecting pipe fixing device of the utility model;

[0029] Figure 4 This is a top view of a specific use of an oil tank connecting pipe fixing device of the utility model.

[0030] Among them: 1. U-shaped clip; 2. embedded groove; 3. tightening bolt; 4. nut; 5. limit pin; 6. C-shaped guard plate. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0037] like Figure 1 and Figure 2 As shown, the utility model provides a tank connecting pipe fixing device, including a U-shaped clamp 1, a groove 2, a tightening bolt 3, a nut 4, a limit nail 5 and a C-shaped guard plate 6, wherein the U-shaped clamp 1 is used as a fixing structure, and the U shape is used as an integrally formed part to avoid welding welds in the forming process. The arc design is not only visually beautiful, but also compared with the right-angle structure, the arc-shaped outer part can avoid external bumps, and the inner wall has no angle to reduce moisture accumulation, and the anti-corrosion effect is better.

[0038] Grooves 2 are provided on both sides of the U-shaped clamp 1, and stainless steel limiting nails 5 are welded on the sides of the grooves 2. The diameter of the limiting nails 5 is 8 mm and the length is 8 mm to 10 mm. Since a bracket for fixing the connecting pipe is welded on the fuel tank, the size and spacing of the bracket openings are fixed. Therefore, using the limiting nails 5 to pass through the bracket openings can ensure the installation size of the connecting pipe without the need for measuring instruments.

[0039] The opening directions of the embedding grooves 2 on both sides of the U-shaped clip 1 are the same. The same opening directions of the embedding grooves 2 can ensure the consistency and ease of use of the U-shaped clip 1 during operation. There is no need to adjust the direction of the U-shaped clip 1 during installation or removal, thereby simplifying the operation process; a through hole is opened at the end of the U-shaped clip 1, and a nut 4 is welded at the through hole. The inner diameter of the nut 4 is consistent with the size of the through hole at the end of the U-shaped clip 1. The setting of the nut 4 facilitates the installation of the tightening bolt 3. The unified aperture design ensures a close fit between the nut 4 and the through hole, avoiding installation difficulties or loosening problems caused by size mismatch. The welded nut 4 and the U-shaped clip 1 become a whole, which enhances the firmness and stability of the connection, making the entire structure more reliable. At the same time, when subjected to external force or vibration, the welded nut 4 is not easy to loosen or fall off, thereby ensuring the durability of the connection.

[0040] The tightening bolt 3 is screwed into the nut 4, and the end of the tightening bolt 3 is welded and fixed to a C-shaped guard plate 6. An internal thread is provided at the bottom of the C-shaped guard plate 6, and its diameter is 16 to 20 mm. An arc plate with a width of 20 mm is welded to the end of the C-shaped guard plate 6, or the end of the C-shaped guard plate 6 is directly processed into an arc shape. The C-shaped guard plate 6 can fit the curvature of the connecting pipe wall more stably to prevent deformation of the pipe wall due to excessive pressure. Moreover, the connecting pipe is sprayed with a coating. This structure can reduce rigid contact and prevent damage to the contact surface coating. The C-shaped guard plate 6 is fitted with the oil tank connecting pipe by rotating the tightening bolt 3, thereby achieving further tightening of the connecting pipe.

[0041] The tightening bolt 3 and the nut 4 are both made of stainless steel. The stainless material has a high strength and hardness, so that the nut and the tightening bolt can withstand large tension and shear forces. At the same time, stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances, including acids, alkalis, salts, etc. In a humid and highly corrosive environment, the stainless steel nuts and tightening bolts can maintain long-term stable performance and are not easy to rust or corrode, thereby extending their service life.

[0042] A rubber sleeve is provided on the limit pin 5, which can protect the limit pin from corrosion and wear. When the limit pin contacts the fixing part, the rubber sleeve can play a buffering role and reduce the noise caused by metal collision. The rubber sleeve is made of rubber or silicone material and has good corrosion resistance. It can effectively isolate the limit pin from direct contact with corrosive substances in the surrounding environment, thereby extending the service life of the limit pin 5. When the limit pin 5 contacts the connecting pipe bracket hole, the rubber sleeve can absorb part of the impact energy, play a buffering role, and reduce the impact damage to the limit pin 5 and the connecting pipe bracket hole.

[0043] A protective gasket is pasted inside the C-shaped guard plate 6. The protective gasket is made of rubber or silicone. The protective gasket can effectively reduce the direct contact between the C-shaped guard plate 6 and the fuel tank bracket and the connecting pipe, reduce the wear caused by friction, vibration, etc., and thus extend the service life of the C-shaped guard plate 6.

[0044] like Figure 3 and Figure 4 As shown, when the oil tank connecting pipe fixing device is used, first place the connecting pipe on one side of the oil tank fixing bracket, fix the opening groove 2 on the U-shaped clamp 1 downward on the bracket, rotate the tightening bolt 3 at the end of the U-shaped clamp 1, and tighten the C-shaped guard plate 6 at the end of the tightening bolt 3 to tighten the connecting pipe, and at the same time, make the limiting nail 5 push into the through hole opened in the oil tank bracket. Through the tightening bolt 3, the limiting nail 5 and the C-shaped guard plate 6, the connection between the connecting pipe and the oil tank is tighter, which can ensure the stability of the position of the connecting pipe on the oil tank, reduce the risk of loosening or falling off of the connecting pipe due to vibration, bumps or other external factors, avoid wear of the coating on the contact part between the oil tank bracket and the connecting pipe, improve the quality and efficiency of the oil tank assembly and installation, and ensure the safety of the connecting pipe after the transformer is operated.

[0045] Embodiment 1:

[0046] The present embodiment provides a tank connecting pipe fixing device. In the present embodiment, the U-shaped clip 1 is made of a steel plate with a thickness of 50 mm, wherein the maximum opening diameter of the U-shaped clip 1 is 50 mm, the bending radius is 25 mm, the side of the U-shaped clip 1 is a rectangle with a length of 80 mm and a width of 50 mm, and rectangular embedding grooves 2 with a length of 30 mm and a width of 20 mm are provided on both sides of the U-shaped clip 1. The embedding grooves 2 provided on both sides of the U-shaped clip 1 have the same size and the same opening direction, and are both located 20 mm away from the tail of the U-shaped clip 1 and 20 mm away from the top.

[0047] In this embodiment, a limiting pin 5 with a length of 8 mm and a diameter of 8 mm is welded on the side of the embedding groove 2. The center of the limiting pin 5 is 30 mm away from the top of the U-shaped clip 1, and the limiting pins 5 welded on the embedding grooves 2 on both sides are at the same position, and a rubber sleeve is provided on the limiting pin 5.

[0048] In this embodiment, a through hole with a diameter of 14.5 mm is opened at the end of the U-shaped clamp 1, the center of the through hole is 28 mm away from the upper side of the end of the U-shaped clamp 1, and the center of the through hole is 22 mm away from the lower side of the end of the U-shaped clamp 1. A nut 4 with a model number of M12 is welded on the outside of the through hole, and a tightening bolt 3 is screwed into the nut 4. The tightening bolt 3 is a bolt with a model number of M12, and the screw length of the tightening bolt 3 is 55 mm.

[0049] In this embodiment, a C-shaped guard plate 6 is provided at the end of the tightening bolt 3. The bottom of the C-shaped guard plate 6 is provided with an M12 internal thread with a diameter of 16 mm. An arc plate with a width of 20 mm is welded at the end of the C-shaped guard plate 6, and a rubber protective gasket is pasted on the top of the arc plate.

[0050] Embodiment 2:

[0051] The present embodiment provides a tank connecting pipe fixing device. In the present embodiment, the U-shaped clip 1 is made of a steel plate with a thickness of 50 mm, wherein the maximum opening diameter of the U-shaped clip 1 is 50 mm, the bending radius is 25 mm, the side of the U-shaped clip 1 is a rectangle with a length of 80 mm and a width of 50 mm, and rectangular embedding grooves 2 with a length of 30 mm and a width of 20 mm are provided on both sides of the U-shaped clip 1. The embedding grooves 2 provided on both sides of the U-shaped clip 1 have the same size and the same opening direction, and are both located 20 mm away from the tail of the U-shaped clip 1 and 20 mm away from the top.

[0052] In this embodiment, a limiting pin 5 with a length of 10 mm and a diameter of 8 mm is welded on the side of the embedding groove 2. The center of the limiting pin 5 is 30 mm away from the top of the U-shaped clip 1, and the limiting pins 5 welded on the embedding grooves 2 on both sides are at the same position, and a silicone rubber sleeve is provided on the limiting pin 5.

[0053] In this embodiment, a through hole with a diameter of 14.5 mm is opened at the end of the U-shaped clamp 1, the center of the through hole is 28 mm away from the upper side of the end of the U-shaped clamp 1, and the center of the through hole is 22 mm away from the lower side of the end of the U-shaped clamp 1. A nut 4 with a model number of M12 is welded on the outside of the through hole, and a tightening bolt 3 is screwed into the nut 4. The tightening bolt 3 is a bolt with a model number of M12, and the screw length of the tightening bolt 3 is 55 mm.

[0054] In this embodiment, a C-shaped guard plate 6 is provided at the end of the tightening bolt 3. The bottom of the C-shaped guard plate 6 is provided with an M12 internal thread with a diameter of 20 mm. The end of the C-shaped guard plate 6 is processed into an arc shape, and a silicone protective gasket is pasted above the C-shaped guard plate 6.

[0055] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A fuel tank connecting pipe fixing device, characterized in that: The invention comprises a U-shaped clamp (1), wherein two sides of the U-shaped clamp (1) are provided with embedding grooves (2), and limiting nails (5) are fixedly arranged on the sides of the embedding grooves (2); a through hole is provided at the end of the U-shaped clamp (1), and a nut (4) is fixedly arranged at the through hole; a tightening bolt (3) is screwed into the nut (4), and a C-shaped guard plate (6) is arranged at the end of the tightening bolt (3).

2. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The embedding grooves (2) on both sides of the U-shaped clip (1) have the same opening direction.

3. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The C-shaped guard plate (6) is fixed to the end of the tightening bolt (3) by welding.

4. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The bottom of the C-shaped guard plate (6) is provided with an internal thread, the diameter of which is 16 to 20 mm.

5. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: An arc-shaped plate with a width of 20 mm is welded to the end of the C-shaped guard plate (6).

6. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: A protective gasket is pasted inside the C-shaped guard plate (6), and a rubber sleeve is sleeved on the limiting nail (5).

7. The fuel tank connecting pipe fixing device according to claim 6, characterized in that: The protective gasket and the rubber sleeve are both made of rubber or silicone.

8. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The limiting nail (5) has a diameter of 8 mm and a length of 8 mm to 10 mm.

9. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The inner diameter of the nut (4) is consistent with the size of the through hole at the end of the U-shaped clamp (1).

10. The fuel tank connecting pipe fixing device according to claim 1, characterized in that: The nut (4) is a stainless steel nut, and the tightening bolt (3) is a stainless steel bolt.

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