Fixing device for preassembled small connecting pipe of oil tank

Abstract

The utility model discloses an oil tank preassembling small connecting pipe fixing device which comprises a groove-shaped clamp, caulking grooves, nuts and puller bolts, the caulking grooves with downward openings are formed in the two sides of the groove-shaped clamp, through holes are formed in the end portions of the groove-shaped clamp, the nuts are welded to the through holes, the rotatable puller bolts are arranged in the nuts, and the puller bolts are connected with the caulking grooves. The tight connection between the small connecting pipe and the oil tank bracket is realized by rotating the puller bolt; the fixing device is simple in overall structure, reliably fixes the down-leading small connecting pipe when the oil tank is preassembled, not only guarantees perpendicularity and horizontal assembly of the connecting pipe, but also improves preassembling work efficiency and preassembling quality, ensures that the position of the connecting pipe on the oil tank is stable, and reduces production cost. The risk that the connecting pipe is loosened or falls off due to vibration, bumping or other external factors is reduced, and the safety of the small connecting pipe in the preassembling process is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer manufacturing, and in particular relates to a fixing device for pre-installed small connecting pipes in an oil tank. 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 problems and provide a fuel tank pre-installed small connecting pipe fixing device, which can improve the fixing effect of the small connecting pipe, increase the pre-installation accuracy, and shorten the pre-installation time.

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

[0008] The utility model provides a small joint pipe fixing device for pre-installing an oil tank, comprising a groove-shaped clamp, embedding grooves are provided on both sides of the groove-shaped clamp, a through hole is provided at the end of the groove-shaped clamp, and a fixing component is arranged on the through hole.

[0009] A further improvement of the utility model is that the opening directions of the embedding grooves on both sides of the groove-shaped clip are the same.

[0010] A further improvement of the utility model is that the groove-shaped clamp is made of steel plate.

[0011] A further improvement of the utility model lies in that the fixing component is a nut.

[0012] A further improvement of the utility model lies in that the nut is welded to the through hole at the end of the slot-shaped clamp.

[0013] A further improvement of the utility model is that the nut and the through hole at the end of the slot-shaped clamp are concentric circles.

[0014] A further improvement of the utility model is that the nut is a stainless steel nut.

[0015] A further improvement of the utility model is that a rotatable tightening bolt is arranged in the nut.

[0016] A further improvement of the utility model is that the tightening bolts are made of stainless steel bolts.

[0017] A further improvement of the utility model is that the diameter of the through hole is 14.5 mm.

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

[0019] The utility model provides embedding grooves on both sides of the groove-shaped clamp, and provides through holes at the ends of the groove-shaped clamp, and fixing components are arranged on the through holes, so that the small connecting pipe is tightly connected to the oil tank bracket through the action of the fixing components. The utility model has a simple structure, and can reliably fix the small connecting pipe when the oil tank is pre-installed, which not only ensures the verticality and horizontal assembly of the connecting pipe, but also improves the pre-installation work efficiency and pre-installation quality.

[0020] Furthermore, the opening directions of the embedding grooves on both sides of the groove-shaped clamp are the same, so that the fixing device can be fixed downward on the fuel tank bracket through the embedding grooves.

[0021] Furthermore, the slot-shaped clamp is made of steel plate, which is corrosion-resistant and high-temperature-resistant, and can adapt to various complex working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1This is a front view of a small connecting pipe fixing device for pre-installing an oil tank according to the utility model;

[0024] Figure 2 This is a specific usage diagram of a small connecting pipe fixing device pre-installed in an oil tank according to the utility model.

[0025] Among them: 1. slot-shaped clamp; 2. embedded groove; 3. nut; 4. tightening bolt. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, the utility model provides a fixing device for pre-installed small connecting pipes in an oil tank, comprising a groove-shaped clamp 1, an embedding groove 2, a nut 3 and a tightening bolt 4, wherein embedding grooves 2 are provided on both sides of the groove-shaped clamp 1, a through hole is provided at the end of the groove-shaped clamp 1, and a fixing component is welded on the through hole, so that the small connecting pipe is tightly connected to the oil tank bracket through the action of the fixing component.

[0033] The groove-shaped clamp 1 is made of steel plate, which has the characteristics of corrosion resistance and high temperature resistance and can adapt to various complex working environments.

[0034] The embedding grooves 2 on both sides of the groove-shaped clamp 1 have the same opening direction, so that the fixing device can be fixed downward on the fuel tank bracket through the embedding grooves 2 .

[0035] The fixing component is a nut 3, which is made of a stainless steel nut. The nut 3 and the through hole at the end of the slot-shaped clamp 1 are concentric circles.

[0036] The tightening bolts 4 are made of stainless steel bolts.

[0037] The nut 3 is welded to the through hole at the end of the grooved clamp 1. A rotatable tightening bolt 4 is arranged in the nut 3. The screw of the tightening bolt 4 passes through the nut 3 and the through hole to tighten the small connecting pipe and the oil tank bracket.

[0038] like Figure 2As shown, when the small coupling pipe fixing device is pre-installed on the oil tank for use, first place the small coupling pipe on one side of the oil tank fixing bracket, fix the slot 2 with the opening on the slot-shaped clamp 1 downward on the bracket, rotate the end of the slot-shaped clamp 1 to tighten the bolt 4, so that the screw of the tightening bolt 4 tightens the small coupling pipe and the oil tank bracket. This fixing device has been installed during the production process of the oil tank, and no additional coupling pipe fixing operation is required during the subsequent assembly process, thereby improving production efficiency; through the fixing device, the connection between the small coupling pipe and the oil tank is tighter, which can ensure the stability of the coupling pipe on the oil tank, reduce the risk of the coupling pipe loosening or falling off due to vibration, bumps or other external factors, and ensure the safety of the small coupling pipe during the pre-installation process.

[0039] Example:

[0040] like Figure 1 As shown, a fixing device for pre-installed small connecting pipes in an oil tank comprises a groove-shaped clamp 1, which is a 5 mm thick steel plate, wherein the end of the groove-shaped clamp 1 is a 50 mm square, and the two sides of the groove-shaped clamp 1 are rectangles with a length of 80 mm and a width of 50 mm; embedding grooves 2 are provided on both sides of the groove-shaped clamp 1, and the embedding grooves 2 are rectangles with a length of 38 mm and a width of 12 mm. The embedding grooves 2 are located at a position 15 mm from the tail of the groove-shaped clamp 1 and 12 mm from the top, and the positions of the embedding grooves 2 on both sides are the same.

[0041] The end of the slot-shaped clamp 1 is provided with a through hole, which is a circular hole with a diameter of 14.5 mm. The center of the through hole is 28 mm away from the upper side of the end of the slot-shaped clamp 1 , and the center of the through hole is 22 mm away from the lower side of the end of the slot-shaped clamp 1 .

[0042] An M12 nut 3 is welded outside the through hole, and a rotatable tightening bolt 4 is arranged inside the nut 3. The tightening bolt 4 is an M12 bolt, wherein the screw length of the tightening bolt 4 is 55 mm.

[0043] In summary, this embodiment provides a small connecting pipe fixing device with a simple structure and easy assembly, which can not only ensure the verticality and horizontal installation of the connecting pipe, but also the tightening bolt 4 has a certain adjustment range and can adapt to connecting pipes of different specifications and models. It has significant advantages in improving safety, enhancing reliability, simplifying installation and maintenance, etc.

[0044] In summary, the utility model provides a fuel tank pre-installed small joint pipe fixing device, which has the following advantages compared with the existing fuel tank pre-installed fixing device:

[0045] The oil tank pre-installed small connecting pipe fixing device of the utility model is designed to be pre-installed, that is, it has been installed during the oil tank manufacturing process, and there is no need to perform fixing operations during later maintenance or pipeline installation, which greatly reduces installation time and steps.

[0046] Secondly, the pre-installed small pipe fixture has been carefully designed and pre-installed, with higher stability and safety, which can better fix the pipeline and reduce the risk of loosening or leakage caused by vibration or external factors.

[0047] In addition, the tank pre-installed small header fixture can be customized for different pipe sizes and layouts to ensure optimal fit and stability.

[0048] In summary, the oil tank pre-installed small connecting pipe fixing device of the utility model is not only simple in structure and reliable in fixing, but also ensures the verticality and horizontality of the connecting pipe through its unique design, thereby improving the pre-installation work efficiency and pre-installation quality.

[0049] 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.

[0050] 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 pre-installed small joint pipe fixing device, characterized in that: The invention comprises a slot-shaped clip (1), wherein two sides of the slot-shaped clip (1) are provided with embedding grooves (2), and an end of the slot-shaped clip (1) is provided with a through hole, and a fixing component is arranged on the through hole.

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

3. The fuel tank pre-installed small connecting pipe fixing device according to claim 1, characterized in that: The groove-shaped clip (1) is made of steel plate.

4. The fuel tank pre-installed small connecting pipe fixing device according to claim 1, characterized in that: The fixing component is a nut (3).

5. The fuel tank pre-installed small connecting pipe fixing device according to claim 4, characterized in that: The nut (3) is welded to the through hole at the end of the slot-shaped clamp (1).

6. The fuel tank pre-installed small connecting pipe fixing device according to claim 4, characterized in that: The nut (3) and the through hole at the end of the slot-shaped clamp (1) are concentric circles.

7. The fuel tank pre-installed small connecting pipe fixing device according to claim 4, characterized in that: The nut (3) is a stainless steel nut.

8. The fuel tank pre-installed small connecting pipe fixing device according to claim 4, characterized in that: A rotatable tightening bolt (4) is arranged inside the nut (3).

9. The fuel tank pre-installed small connecting pipe fixing device according to claim 8, characterized in that: The tightening bolts (4) are made of stainless steel bolts.

10. The fuel tank pre-installed small connecting pipe fixing device according to claim 1, characterized in that: The through hole has a diameter of 14.5 mm.

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