A press-fit structure for high-voltage casting template of dry-type transformer

Abstract

The present invention belongs to the technical field of casting template press-fitting structure, specifically a dry-type transformer high-voltage casting template press-fitting structure, including a clamp; a first pressure strip is fixedly installed on the bottom end of the clamp, a terminal template is provided on one side of the first pressure strip, a second pressure strip is slidably installed on the side of the terminal template away from the first pressure strip, a clamping bolt is connected to the bearing on the side of the second pressure strip away from the terminal template, the clamping bolt is threadedly installed on one side of the clamp, and an abutment component is provided on one side of the second pressure strip to prevent excessive extrusion of the press-fitting structure; by providing the abutment component, when the outer mold of the casting template is press-fitted, the extrusion effect of the press-fitting structure on the outer mold opening and the terminal template is improved, thereby improving the casting effect of the epoxy resin outside the dry-type transformer coil and extending the service life of the outer mold and the terminal template.

Description

Technical Field

[0001] The invention relates to the technical field of casting template press-fit structures, in particular to a high-voltage casting template press-fit structure for a dry-type transformer. Background Art

[0002] The coils of dry-type transformers are typically coated with epoxy resin to provide insulation, heat dissipation, moisture resistance, and corrosion resistance. For example, Chinese patent publication CN217361357U proposes a mold for epoxy resin casting of transformer coils, demonstrating a traditional epoxy resin casting process for dry-type transformer coils. Inner and outer molds are customized according to the actual size of the transformer, and the outer mold is sealed using a press-fit structure. Material is then poured into the gap between the inner and outer molds, completing the epoxy resin casting of the dry-type transformer coils.

[0003] The existing casting template press-fitting structure is often used in the casting of epoxy resin for dry-type transformer coils. For example, China's authorized patent for a dry-type transformer high-voltage casting template press-fitting structure (application number: CN202322707717.7) discloses a dry-type transformer high-voltage casting template press-fitting structure, including a splint, a first pressure strip, a second pressure strip and a clamping bolt. When the outer mold needs to be press-fitted, the clamp is placed on one side of the terminal template, and the first pressure strip is driven to move by rotating the clamping bolt, so that the first pressure strip and the second pressure strip firmly fix the outer mold and the terminal template, thereby completing the press-fitting of the casting mold.

[0004] In the prior art, although the high-voltage casting template of the dry-type transformer can be fastened by setting a first pressure strip, a second pressure strip and a clamping bolt, so that the template can be pressed in without drilling holes on the template, in actual operation, the staff is likely to turn the clamping bolt a large number of times, causing the second pressure strip to over-pressurize the outer mold and the terminal template, causing the outer mold to be concave in the direction close to the clamping bolt, resulting in a gap between the outer mold and the terminal template, thereby affecting the casting effect. In addition, excessive extrusion can easily cause deformation of the outer mold and the terminal template, thereby increasing the frequency of replacement of the casting template and causing economic losses. Therefore, a press-fitting structure for the high-voltage casting template of a dry-type transformer is proposed to address the above problems. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that in actual operation, the staff tends to turn the clamping bolts for a large number of turns, causing the second pressure strip to over-press the outer mold and the terminal template, causing the outer mold to be concave in the direction close to the clamping bolts, resulting in a gap between the outer mold and the terminal template, thereby affecting the casting effect. In addition, excessive extrusion is also likely to cause deformation of the outer mold and the terminal template, thereby increasing the frequency of replacement of the casting template and causing economic losses. The present invention proposes a press-fit structure for the high-voltage casting template of a dry-type transformer.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: a press-fit structure for a high-voltage casting template of a dry-type transformer described in the present invention includes a clamp; a first pressure strip is fixedly installed on the bottom end of the clamp, a terminal template is provided on one side of the first pressure strip, a second pressure strip is slidably installed on the side of the terminal template away from the first pressure strip, a holding bolt is connected to a bearing on the side of the second pressure strip away from the terminal template, the holding bolt is threadedly installed on one side of the clamp, and an abutment component is provided on one side of the second pressure strip to prevent excessive extrusion of the press-fit structure;

[0007] The cam is secured to the upper edge of the support frame, and the cam is secured to the lower edge of the support frame by a spring, and the cam is secured to the lower edge of the support frame by a spring.

[0008] Preferably, the top end of the lifting block is set to be truncated cone-shaped, and the bottom end of the lifting plate is provided with a groove that matches the truncated cone shape of the lifting block; when the lifting block abuts against the lifting plate, the lifting block can decompose the horizontal thrust into a vertical thrust through the truncated cone-shaped inclined surface, thereby driving the lifting plate to move upward. In addition, by providing a matching groove at the bottom end of the lifting plate, the process of the lifting block pushing the lifting plate to move can be made smoother and more stable.

[0009] Preferably, the distance between the two sides of the abutment groove is greater than the distance between the two sides of the abutment block; when the abutment assembly is reset, the bottom end slider can move a distance before the abutment block moves downward.

[0010] Preferably, one side of the abutment block is set as an inclined portion, and the other side of the abutment block is set as a straight portion; this can further extend the moving distance of the bottom slider before the abutment block descends, thereby reducing the risk of motion interference.

[0011] Preferably, the driving assembly includes a connecting strip arranged on one side of the bottom slider, the outer wall of the connecting strip is slidably installed with a guide groove, the guide groove is fixedly installed on the top of the clamp, one end of the connecting strip is fixedly installed with a limiting block, one side of the limiting block is provided with a detection assembly, the bottom end of the limiting block is provided with a fixing assembly, the limiting block is connected to the detection assembly through the fixing assembly; before the outer mold opening is pressed, the limiting block can be abutted against the top of the fixing block to fix the detection assembly.

[0012] Preferably, the detection component includes a detection slider arranged on one side of the limiting block, one end of the detection slider passes through the clamp and extends to one side of the clamp, and the end of the detection slider extended to one side of the clamp is fixedly installed with a detection slide bar, and the detection slider is slidably installed on the inner wall of the detection slide groove, and the detection slide groove is opened on one side of the clamp; when foreign matter such as dust agglomerates, resin clots, etc. are attached to one side of the outer mold opening, or when the terminal template is deformed so that one side of the outer mold opening is bulged, the foreign matter or bulge will hinder the movement of the detection slide bar, so that the detection slide bar stays between the second pressure strip and the outer mold opening, thereby hindering the movement of the second pressure strip. At this time, the staff can inspect and maintain the outer mold opening and the terminal template.

[0013] Preferably, the detection slider and the detection slot are both set to be rectangular; this can avoid the problem that when the detection slide bar abuts against foreign objects, the detection slider is easily deflected, thereby affecting the subsequent operation of the detection component, thereby improving the stability and reliability of the detection component.

[0014] Preferably, the fixing assembly includes a connecting plate, the abutment block is rotatably mounted on one side of the clamp, the inner wall of the connecting plate is fixedly mounted with a first rotating shaft, one end of the first rotating shaft is rotatably mounted on one side of the clamp, both ends of the first rotating shaft are rotatably mounted with fixed blocks, one end of the fixed block is fixedly mounted with a second rotating shaft, the bottom end of the fixed block is rotatably mounted with a limit block, and the limit blocks are fixedly mounted on one side of the connecting plate; it can limit the rotation direction of the fixed block and prevent the fixed block from obstructing the movement of the detection slider when the detection assembly is reset.

[0015] Preferably, the distance between the top of the detection slide groove and the top of the fixed block is greater than the distance between the top and the bottom of the detection slider; the detection slider can be moved upward a sufficient distance so that the fixed block can be rotated and reset, avoiding the problem that the detection slider hinders the rotation and reset of the fixed block when the staff pulls the detection slider to reset it.

[0016] Preferably, a scraper is fixedly mounted on the bottom end of the detection slide bar, and a counterweight is fixedly mounted on one end of the detection slider; the scraper and the counterweight cooperate to separate foreign matter, thereby improving the applicability of the press-fit structure.

[0017] The present invention is beneficial in that:

[0018] 1. The present invention provides an abutment assembly. When the outer mold of the casting template is press-fitted, the second pressure strip drives the abutment block to move in a direction away from the clamp through the guide rod, the lifting block, the lifting plate and the lifting strip. At the same time, the second pressure strip drives the abutment groove to move one side of the abutment block through the bottom slider, so that the straight part of the abutment block abuts against one side of the abutment groove, thereby hindering the movement of the bottom slider, and further preventing the second pressure strip from further increasing the pressure on the outer mold opening and the terminal template, thereby avoiding the situation in which the staff easily turns the clamping screw a large number of times during actual operation. The bolt causes the second pressure strip to over-press the outer mold and the terminal template, causing the outer mold to sink in the direction close to the tightening bolt, resulting in a gap between the outer mold and the terminal template, thereby affecting the casting effect. In addition, excessive extrusion can easily cause the outer mold and the terminal template to deform, thereby increasing the replacement frequency of the casting template and causing economic losses. The problem of improving the extrusion effect of the press-fit structure on the outer mold opening and the terminal template, thereby improving the casting effect of the epoxy resin outside the dry-type transformer coil and extending the service life of the outer mold and the terminal template;

[0019] 2. The present invention cooperates with a driving component, a fixing component and a detection component. Before the outer mold opening is pressed, the driving component cooperates with the fixing component to fix the detection component to prevent the detection component from operating prematurely under the action of gravity. When the outer mold opening is pressed, the driving component drives the limiting block to move to one side of the fixing component, so that the fixing component stops fixing the detection component. At this time, the detection slider drives the detection slide rod to move under the action of gravity. When foreign matter such as dust agglomerates and resin clots are attached to one side of the outer mold opening, or when the terminal template is deformed so that one side of the outer mold opening is bulged, the foreign matter or bulge will hinder the movement of the detection slide rod, so that the detection slide rod stays between the second pressure strip and the outer mold opening, thereby hindering the movement of the second pressure strip. At this time, the staff can inspect and maintain the outer mold opening and the terminal template. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the abutment assembly of the present invention;

[0023] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle.

[0027] In the figure: 1. Clamp; 2. First pressure strip; 3. Terminal template; 4. Second pressure strip; 5. Tightening bolt; 6. Guide rod; 7. Lifting block; 8. Lifting plate; 9. Lifting bar; 10. Abutment block; 11. Bottom slider; 12. Abutment groove; 13. Connecting bar; 14. Guide groove; 15. Limiting block; 16. Detection slider; 17. Detection slide bar; 18. Detection slide groove; 19. Connecting plate; 20. First rotating shaft; 21. Fixed block; 22. Second rotating shaft; 23. Limiting block; 24. Scraper; 25. Counterweight. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] See also Figures 1 to 6 As shown, a press-fit structure for a high-voltage casting template for a dry-type transformer includes a clamp 1; a first pressure strip 2 is fixedly installed at the bottom end of the clamp 1, a terminal template 3 is provided on one side of the first pressure strip 2, a second pressure strip 4 is slidably installed on the side of the terminal template 3 away from the first pressure strip 2, a holding bolt 5 is connected to the bearing on the side of the second pressure strip 4 away from the terminal template 3, and the holding bolt 5 is threadedly installed on one side of the clamp 1, and an abutment component is provided on one side of the second pressure strip 4 to prevent excessive extrusion of the press-fit structure;

[0031] The abutment assembly includes a guide rod 6 arranged on one side of the second pressure strip 4, and two guide rods 6 are symmetrically arranged about the clamping bolt 5. One end of the guide rod 6 passes through the clamp 1 and extends to one side of the clamp 1. Compared with the prior art, the provision of a clamping bolt 5 can avoid the need to synchronously rotate the two clamping bolts 5 when the clamping bolt 5 needs to be squeezed between the outer mold opening and the terminal template 3, which causes the problem of cumbersome operation. In addition, the provision of two guide rods 6 can avoid the problem that the second pressure strip 4 is easily offset when moving, thereby affecting the pressing effect. A lifting block 7 is fixedly installed at one end of one of the guide rods 6, and the top of the lifting block 7 abuts against a lifting plate 8. A pair of The lifting bar 9 and the top of the lifting bar 9 away from the lifting plate 8 are fixedly installed with abutment blocks 10, and the top of the abutment blocks 10 are slidably installed with bottom sliders 11. A driving component is provided on one side of the bottom slider 11, and the bottom slider 11 is fixedly installed on the top of the second pressure strip 4. One side of the abutment blocks 10 abuts against the inner wall of the abutment groove 12. When the tightening bolt 5 drives the second pressure strip 4 to move a certain distance and applies a suitable extrusion force to the outer mold opening and the terminal template 3, the abutment blocks 10 abut against the abutment groove 12, thereby preventing the bottom slider 11 from continuing to move, and then the second pressure strip 4 stops continuing to increase the extrusion force. The abutment grooves 12 are all opened at the bottom of the bottom slider 11.

[0032] See also Figures 1 to 3 As shown, the top of the lifting block 7 is set to be a truncated cone, and the bottom end of the lifting plate 8 is provided with a groove that matches the truncated cone shape of the lifting block 7. When the lifting block 7 abuts against the lifting plate 8, the lifting block 7 can decompose the horizontal thrust into a vertical thrust through the truncated cone slope, thereby driving the lifting plate 8 to move upward. In addition, by providing a matching groove at the bottom end of the lifting plate 8, the process of the lifting block 7 pushing the lifting plate 8 to move can be made smoother and more stable.

[0033] See also Figures 2 to 4 As shown, the distance between the two sides of the abutment groove 12 is greater than the distance between the two sides of the abutment block 10, so that when the abutment assembly is reset, the bottom slider 11 can move a certain distance before the abutment block 10 moves downward, avoiding the abutment groove 12 from abutting the other side of the abutment block 10, resulting in the abutment block 10 hindering the movement of the bottom slider 11 when the abutment assembly is reset, thereby making the second pressure strip 4 unable to move, causing the problem of motion interference, and improving the stability and reliability of the structure.

[0034] See also Figures 2 to 4As shown, one side of the abutment block 10 is set as an inclined portion, which can further extend the moving distance of the bottom slider 11 before the abutment block 10 descends, thereby reducing the risk of motion interference. The other side of the abutment block 10 is set as a straight portion, which can effectively limit the movement of the bottom slider 11 and the second pressure strip 4 when the straight portion of the abutment block 10 abuts against the abutment groove 12.

[0035] In summary, by setting the abutment assembly, when the outer mold of the casting template is press-fitted, the second bead 4 drives the abutment block 10 to move away from the clamp 1 through the guide rod 6, the lifting block 7, the lifting plate 8 and the lifting bar 9. At the same time, the second bead 4 drives the abutment groove 12 to move one side of the abutment block 10 through the bottom end slider 11, so that the straight part of the abutment block 10 abuts against one side of the abutment groove 12, thereby hindering the movement of the bottom end slider 11, and further preventing the second bead 4 from further increasing the pressure on the outer mold opening and the terminal template 3, avoiding the staff from easily rotating in actual operation. A large number of turns of the clamping bolts 5 cause the second pressure strip 4 to over-press the outer mold and the terminal template 3, causing the outer mold to sink toward the clamping bolts 5, resulting in a gap between the outer mold and the terminal template 3, thereby affecting the casting effect. In addition, excessive extrusion can easily cause deformation of the outer mold and the terminal template, thereby increasing the replacement frequency of the casting template and causing economic losses. It improves the extrusion effect of the press-fit structure on the outer mold opening and the terminal template 3, thereby improving the casting effect of the epoxy resin outside the dry-type transformer coil and extending the service life of the outer mold and the terminal template 3.

[0036] Example 2

[0037] See also Figures 1 to 6 As shown, compared with Example 1, as another embodiment of the present invention, the driving component includes a connecting bar 13 arranged on one side of the bottom slider 11, and the outer wall of the connecting bar 13 is slidably installed with a guide groove 14, and the guide groove 14 is fixedly installed on the top of the clamp 1, and a limiting block 15 is fixedly installed at one end of the connecting bar 13, and a detection component is provided on one side of the limiting block 15, and a fixing component is provided at the bottom end of the limiting block 15. The limiting block 15 is connected to the detection component through the fixing component, and can be abutted against the top of the fixing block 21 by the limiting block 15 before press-fitting the outer mold opening, thereby fixing the detection component, and when press-fitting the outer mold opening, the limiting block 15 is driven to leave the top of the fixing block 21 by the driving component, thereby stopping the fixation of the detection component, so that the detection component can start to operate under the action of gravity.

[0038] See also Figures 5 and 6As shown, the detection assembly includes a detection slider 16 arranged on one side of the limiting block 15, one end of the detection slider 16 passes through the fixture 1 and extends to one side of the fixture 1, and a detection slide bar 17 is fixedly installed on the end of the detection slider 16 extending to one side of the fixture 1. The detection slider 16 is slidably installed on the inner wall of the detection slide groove 18, and the detection slide groove 18 is opened on one side of the fixture 1. When the outer mold opening is pressed, the detection slider 16 moves downward under the action of gravity, so that the detection slider 16 drives the detection slide bar 17 to move, so that the detection slide bar 17 moves along one side of the outer mold opening. When dust clumps, resin clots and other foreign matter are attached to one side of the outer mold opening, or When the terminal template 3 is deformed so that one side of the outer mold opening is bulged, foreign matter or bulges will hinder the movement of the detection slide 17, causing the detection slide 17 to stay between the second pressure strip 4 and the outer mold opening, thereby hindering the movement of the second pressure strip 4. At this time, the staff can inspect and maintain the outer mold opening and the terminal template 3, avoiding the problem that when dust lumps, resin clots and other foreign matter are attached to one side of the outer mold opening, or when the terminal template 3 is deformed so that one side of the outer mold opening is bulged, the second pressure strip 4 squeezes the outer mold opening and the terminal template 3, which easily causes a gap between the outer mold opening and the terminal template 3, thereby affecting the template casting effect.

[0039] See also Figures 5 and 6 As shown, the detection slider 16 and the detection slot 18 are both set to be rectangular, which can prevent the detection slider 16 from tilting or deflecting when moving along the detection slot 18, avoiding the problem that when the detection slide bar 17 abuts against foreign objects, the detection slider 16 is easily deflected, thereby affecting the subsequent operation of the detection component, thereby improving the stability and reliability of the detection component.

[0040] See also Figures 5 and 6 As shown, the fixed assembly includes a connecting plate 19, the abutment block 10 is rotatably installed on one side of the fixture 1, and the inner wall of the connecting plate 19 is fixedly installed with a first rotating shaft 20, one end of the first rotating shaft 20 is rotatably installed on one side of the fixture 1, and both ends of the first rotating shaft 20 are rotatably installed with fixed blocks 21, and one end of the fixed block 21 is fixedly installed with a second rotating shaft 22, so that when the detection assembly is reset and the detection slider 16 abuts against the fixed block 21, the fixed block 21 can rotate with the second rotating shaft 22 as the axis to avoid the fixed block 21 hindering the movement of the detection slider 16, thereby causing motion interference to the reset of the detection assembly, and the bottom end of the fixed block 21 is rotatably installed with a limit block 23, which is fixedly installed on one side of the connecting plate 19 and can limit the rotation direction of the fixed block 21.

[0041] To sum up, by cooperating with the driving component, the fixing component and the detection component, before the outer mold opening is pressed, the driving component cooperates with the fixing component to fix the detection component to prevent the detection component from operating prematurely under the action of gravity, and when the outer mold opening is pressed, the driving component drives the limiting block 15 to move to one side of the fixing component, so that the fixing component stops fixing the detection component. At this time, the detection slider 16 drives the detection slide bar 17 to move under the action of gravity. When dust lumps, resin clots and other foreign matter are attached to one side of the outer mold opening, or when the terminal template 3 is deformed so that one side of the outer mold opening is bulged, the foreign matter or bulge will hinder the movement of the detection slide bar 17, so that the detection slide bar 17 stays between the second pressure strip 4 and the outer mold opening, thereby hindering the movement of the second pressure strip 4. At this time, the staff can inspect and maintain the outer mold opening and the terminal template 3.

[0042] See also Figures 5 and 6 As shown, the distance between the top of the detection slide 18 and the top of the fixed block 21 is greater than the distance between the top and the bottom of the detection slider 16, which enables the detection slider 16 to move upward a sufficient distance so that the fixed block 21 rotates and resets, avoiding the problem that the detection slider 16 hinders the fixed block 21 from rotating and resetting when the staff pulls the detection slider 16 to reset.

[0043] See also Figures 2 to 6 As shown, a scraper 24 is fixedly installed at the bottom end of the detection slide bar 17, and a counterweight block 25 is fixedly installed at one end of the detection slider 16. The counterweight block 25 can increase the weight of the detection slider 16 and the detection slide bar 17, thereby increasing the kinetic energy of the falling detection slide bar 17, and the scraper 24 set at the bottom end of the detection slider 16 can increase the ability to separate foreign matter on the side wall of the outer mold opening. When the foreign matter is small, the scraper 24 and the counterweight block 25 can cooperate to separate the foreign matter, thereby improving the applicability of the press-fitting structure.

[0044] Working principle: When it is necessary to install the high-voltage pouring template of the dry-type transformer, place the inner mold and the outer mold in the specified position, place the terminal template 3 at the opening of the outer mold, and then place the press-fitting structure on both sides of the outer mold opening. At this time, the staff rotates the clamping bolt 5 so that the clamping bolt 5 rotates while moving closer to the clamp 1. The clamping bolt 5 drives the second pressure strip 4 to move, and the second pressure strip 4 drives the guide rod 6 to move. The guide rod 6 drives the lifting block 7 to move, so that the lifting block 7 abuts against the bottom end of the lifting plate 8. The lifting block 7 drives the lifting plate 8 to move away from the guide rod 6, and the lifting plate 8 drives the lifting bar 9 to move, and the lifting bar 9 drives the abutment block 10 to move. At the same time, the second pressure strip 4 drives the bottom slider 11 to move, and the bottom slider 11 drives the abutment groove 12 to move. At this time, the abutment block 10 moves to one side of the abutment groove 12 and The second pressure strip 4 cannot continue to squeeze the outer mold opening and the terminal template 3, and at the same time, the bottom slider 11 drives the connecting strip 13 to move along the guide groove 14, and the connecting strip 13 drives the limiting block 15 to move, so that the limiting block 15 leaves the top of the fixed block 21, so that the limiting block 15 no longer hinders the movement of the fixed block 21. At this time, the counterweight block 25 moves downward under the action of gravity, and the counterweight block 25 drives the detection slider 16 to move along the detection slide groove 18, and the detection slider 16 drives the detection slide bar 17 to move along the outer mold opening. When there is foreign matter attached to one side of the outer mold opening, the foreign matter abuts and hinders the movement of the detection slide groove 18, so that the detection slide groove 18 hinders the movement of the second pressure strip 4. At this time, the staff can inspect and maintain the outer mold or the terminal template 3;

[0045] After completing the high-voltage pouring of the dry-type transformer coil, the staff rotates the clamping bolt 5 in the opposite direction, so that the clamping bolt 5 drives the second pressure strip 4 to move away from the terminal template 3, so that the second pressure strip 4 drives the lifting block 7 to move away from the lifting plate 8 through the guide rod 6, and the lifting block 7 no longer abuts against the bottom end of the lifting plate 8. The lifting plate 8 drives the abutment block 10 to move toward the clamp 1 through the lifting bar 9, so that the abutment block 10 no longer hinders the movement of the bottom slider 11, so that the second pressure strip 4 drives the limiting block 15 to reset through the bottom slider 11 and the connecting bar 13. At this time, the staff can The connecting plate 19 is rotated so that the connecting plate 19 drives the fixed block 21 to rotate to the bottom end of the limit block 15, and then the staff pulls the counterweight block 25 so that the counterweight block 25 drives the detection slide 17 to reset through the detection slider 16. When the detection slider 16 abuts against the bottom end of the fixed block 21, the fixed block 21 rotates with the second rotating shaft 22 as the axis, and when the detection slider 16 moves to the top end of the detection slide groove 18, the fixed block 21 is rotated by gravity to abut against the limit block 23. At this time, the staff pulls the counterweight block 25 again, so that the counterweight block 25 drives the detection slider 16 to abut against the top end of the fixed block 21, completing the reset.

[0046] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A press-fit structure for high-voltage casting templates for dry-type transformers, characterized by: The clamp (1) comprises a first pressure strip (2) fixedly mounted on the bottom end of the clamp (1), a terminal template (3) being provided on one side of the first pressure strip (2), a second pressure strip (4) being slidably mounted on the side of the terminal template (3) away from the first pressure strip (2), a clamping bolt (5) being connected to the bearing on the side of the second pressure strip (4) away from the terminal template (3), the clamping bolt (5) being threadedly mounted on one side of the clamp (1), and an abutment component for preventing the press-fit structure from being over-extruded being provided on one side of the second pressure strip (4); The abutment assembly includes a guide rod (6) arranged on one side of the second pressure strip (4), and two guide rods (6) are symmetrically arranged about the clamping bolt (5). One end of each guide rod (6) passes through the clamp (1) and extends to one side of the clamp (1). A lifting block (7) is fixedly installed at one end of one of the guide rods (6), and the top end of the lifting block (7) abuts against a lifting plate (8), and a pair of lifting bars (9) are fixedly installed at the top end of the lifting plate (8). The top of the lifting bar (9) away from the lifting plate (8) is fixedly installed with an abutment block (10), and the top of the abutment block (10) is slidably installed with a bottom slider (11), and a driving component is provided on one side of the bottom slider (11). The bottom slider (11) is fixedly installed on the top of the second pressure bar (4), and one side of the abutment block (10) abuts against the inner wall of the abutment groove (12), and the abutment groove (12) is opened at the bottom of the bottom slider (11).

2. The dry-type transformer high-voltage casting template press-fit structure according to claim 1 is characterized in that: The top end of the lifting block (7) is arranged in a truncated cone shape, and the bottom end of the lifting plate (8) is provided with a groove that matches the truncated cone shape of the lifting block (7).

3. The dry-type transformer high-voltage casting template press-fit structure according to claim 1 is characterized in that: The distance between the two sides of the abutment groove (12) is greater than the distance between the two sides of the abutment block (10).

4. The high-voltage casting template press-fit structure for dry-type transformers according to claim 1, characterized in that: One side of the abutment block (10) is configured as an inclined portion, and the other side of the abutment block (10) is configured as a straight portion.

5. The dry-type transformer high-voltage casting template press-fit structure according to claim 1 is characterized in that: The driving assembly comprises a connecting bar (13) arranged on one side of the bottom slider (11); a guide groove (14) is slidably mounted on the outer wall of the connecting bar (13); the guide groove (14) is fixedly mounted on the top of the clamp (1); a limiting block (15) is fixedly mounted on one end of the connecting bar (13); a detection assembly is arranged on one side of the limiting block (15); a fixing assembly is arranged at the bottom end of the limiting block (15); and the limiting block (15) is connected to the detection assembly via the fixing assembly.

6. The dry-type transformer high-voltage casting template press-fit structure according to claim 5, characterized in that: The detection assembly includes a detection slider (16) arranged on one side of the limiting block (15), one end of the detection slider (16) passes through the clamp (1) and extends to one side of the clamp (1), and a detection slide bar (17) is fixedly installed on the end of the detection slider (16) extending to one side of the clamp (1), and the detection slider (16) is slidably installed on the inner wall of the detection slide groove (18), and the detection slide groove (18) is opened on one side of the clamp (1).

7. The dry-type transformer high-voltage casting template press-fit structure according to claim 6, characterized in that: The detection slide block (16) and the detection slide groove (18) are both configured as rectangles.

8. The dry-type transformer high-voltage casting template press-fit structure according to claim 5, characterized in that: The fixing assembly includes a connecting plate (19), the abutting block (10) is rotatably mounted on one side of the clamp (1), a first rotating shaft (20) is fixedly mounted on the inner wall of the connecting plate (19), one end of the first rotating shaft (20) is rotatably mounted on one side of the clamp (1), both ends of the first rotating shaft (20) are rotatably mounted with a fixing block (21), one end of the fixing block (21) is fixedly mounted with a second rotating shaft (22), the bottom end of the fixing block (21) is rotatably mounted with a limiting block (23), and the limiting block (23) is fixedly mounted on one side of the connecting plate (19).

9. The dry-type transformer high-voltage casting template press-fit structure according to claim 6, characterized in that: The distance between the top of the detection chute (18) and the top of the fixed block (21) is greater than the distance between the top and the bottom of the detection slider (16).

10. The dry-type transformer high-voltage casting template press-fit structure according to claim 6, characterized in that: A scraper (24) is fixedly mounted on the bottom end of the detection slide bar (17), and a counterweight (25) is fixedly mounted on one end of the detection slider (16).

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