Power transformation cabinet

Abstract

The utility model discloses a power transformation cabinet, which belongs to the technical field of power equipment and comprises a power transformation cabinet body, a current transformer fixing assembly is mounted on the inner bottom wall of the power transformation cabinet body, a wire fixing assembly is mounted on the current transformer fixing assembly, and the current transformer fixing assembly comprises a driving assembly and a fixing assembly. The driving assembly is installed on the inner bottom wall of the power transformation cabinet body, three fixing assemblies and three wire fixing assemblies are arranged on the driving assembly in an annular array mode, and the wire fixing assemblies are connected with the driving assembly. By means of the mode, the current transformer is placed on the driving assembly, the three wires penetrate through the through holes and the current transformer, the driving assembly is started to drive the three fixing assemblies to clamp and fix the current transformer, and meanwhile the driving assembly drives the three wire fixing assemblies to fix the wires. Therefore, the synchronous fixation of the current transformer and the three-phase guide in the power transformation cabinet is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a transformer cabinet. Background Art

[0002] Currently, there is a type of substation cabinet on the market that has three-phase conductors entering from the bottom. A current transformer is provided at the entry point of the three-phase conductors to detect the current of the conductors, and the current transformer needs to be fixed.

[0003] Among many existing technologies, Chinese patent CN110718363A discloses a fixing device for a current transformer, including a first T-shaped slide rail fixedly connected to the top surface of a base plate, a first platform slidably connected to the top surface of the base plate through the first T-shaped slide rail, a second T-shaped slide rail fixedly connected to the top surface of the first platform, a second platform slidably connected to the top surface of the first platform through the second T-shaped slide rail, the second platform fixedly connected to two angle irons by screws, the opposite side walls of the two angle irons are fixedly connected to the current transformer by screws, and two connecting ears are fixedly connected to both sides of the current transformer.

[0004] However, the fixing structure in this patent application cannot fix three-phase conductors at the same time, making it inconvenient to use.

[0005] Based on this, the utility model designs a transformer cabinet to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a transformer cabinet.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A substation cabinet comprises a substation cabinet body, a current transformer fixing assembly is mounted on the inner bottom wall of the substation cabinet body, and a wire fixing assembly is mounted on the current transformer fixing assembly;

[0009] The current transformer fixing assembly includes a driving assembly and a fixing assembly. The driving assembly is installed on the inner bottom wall of the transformer cabinet body. Three fixing assemblies and three wire fixing assemblies are arranged in a circular array on the driving assembly. The wire fixing assembly is connected to the driving assembly.

[0010] Furthermore, the transformer cabinet body includes a cabinet body and a through hole, the through hole is opened on the inner bottom wall of the cabinet body, and the drive assembly is installed on the inner bottom wall of the cabinet body.

[0011] Furthermore, the driving assembly includes a hollow disc, a turntable, an arc-shaped groove, a cam follower, a first slider, a first slide groove, a connecting rod and an electric push rod. The hollow disc is fixedly mounted on the inner bottom wall of the cabinet and is concentrically arranged with the through hole. The turntable is rotatably mounted inside the hollow disc. The turntable and the middle of the hollow disc are both provided with through grooves concentric with the through hole. There are three arc-shaped grooves and they are evenly spaced along the central axis of the hollow disc on the turntable. A cam follower is fitted and slidably connected in each arc-shaped groove. The top of the hollow disc Three first slide grooves are provided at equal intervals on the top of the cabinet, and the bottoms of the three first slide grooves are respectively connected to the top of the arc-shaped groove. A first slider is slidably connected in each first slide groove, and the top of the cam follower extends into the first slide groove and is fixedly connected to the bottom of the first slider. One end of the connecting rod is fixedly connected to the turntable, and the other end of the connecting rod is hinged to the output end of the electric push rod, and the electric push rod is hinged to the inner bottom wall of the cabinet. Each first slider extends to the outside of the first slide groove and is connected to a fixing assembly, and the wire fixing assembly is installed on the top of the first slider.

[0012] Furthermore, the fixing assembly includes a second slider, an arc-shaped clamping block, a second slide groove and a tension spring. A second slide groove is opened on the top of each first slider, and each second slide groove is slidably connected to the second slider. The inner end of the second slider extends to the outside of the second slide groove and is fixedly connected to the arc-shaped clamping block. One end of the tension spring is fixedly connected to the end of the second slider, and the other end is on the inner wall of the second slide groove.

[0013] Furthermore, there are three wire fixing assemblies, which are respectively connected to the three first sliders.

[0014] Furthermore, the wire fixing assembly includes a mounting block, a clamping groove, an inner cavity, an oblique groove, an isosceles trapezoidal block, a contact pin, a right-angled trapezoidal block, a push rod and a fixed slider. The top of each first slider is fixedly mounted with a mounting block, a clamping groove is provided on the inner end outer wall of the mounting block, the inner cavity is opened inside the mounting block, the oblique grooves have two and are symmetrically opened on the inner end outer wall of the mounting block, the two oblique grooves are symmetrically arranged on both sides of the clamping groove, the isosceles trapezoidal block is arranged in the inner cavity for sliding connection, the clamping groove is elastically slidably connected to the contact pin, and the contact The end of the pin slides through the inner wall of the clamping groove and extends into the inner cavity to and is fixedly connected to the isosceles trapezoidal block. The two oblique sides of the isosceles trapezoidal block are respectively slidably connected to the oblique sides of the two right-angled trapezoidal blocks. The sides of the two right-angled trapezoidal blocks away from each other are fixedly connected with push rods. The right-angled trapezoidal blocks are slidably connected in the inner cavity, and the push rods are elastically slidably connected in the inner cavity. A fixed slider is slidably provided in each oblique groove, one end of the fixed slider extends to the outside of the oblique groove, and the other end extends into the inner cavity and can slide in fit with the end of the push rod. The fixed slider is elastically slidably connected to the oblique groove.

[0015] Furthermore, the contact pin is connected to the engaging groove via a spring, the push rod is connected to the inner cavity via a spring, and the fixed slider is connected to the inclined groove via a spring.

[0016] Furthermore, the end of the push rod away from the right-angled trapezoidal block is provided with an inclined surface, and the end of the fixed slider is provided with a spherical surface that fits and slides with the inclined surface of the push rod.

[0017] The utility model has the following technical effects:

[0018] When the utility model is used, the current transformer is placed on the driving component, three wires are passed through the through hole and the current transformer, and the driving component is started. The driving component drives the three fixing components to clamp and fix the current transformer, and at the same time the driving component drives the three wire fixing components to fix the wires, thereby realizing the synchronous fixation of the current transformer and the three-phase guide in the substation cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 A three-dimensional transformer cabinet of the utility model Figure 1 ;

[0021] Figure 2 This is a front view of a transformer cabinet according to the present invention;

[0022] Figure 3 A three-dimensional transformer cabinet of the utility model Figure 2 ;

[0023] Figure 4 It is a cross-sectional view of the current transformer fixing assembly and the wire fixing assembly of the utility model;

[0024] Figure 5 It is a cross-sectional view of the wire fixing assembly of the present invention.

[0025] The numbers in the figure represent:

[0026] 1. Substation cabinet body 11. Cabinet body 12. Through hole 2. Current transformer fixing assembly 21. Drive assembly 211. Hollow disk 212. Rotating disk 213. Arc groove 214. Cam follower 215. First slider 216. First slide 217. Connecting rod 218. Electric push rod 22. Fixing assembly 221. Second slider 222. Arc clamping block 223. Second slide 224. Tension spring 3. Wire fixing assembly 31. Mounting block 32. Clamping groove 33. Inner cavity 34. Bevel groove 35. Isosceles trapezoidal block 36. Contact pin 37. Right-angle trapezoidal block 38. Push rod 39. Fixing slider DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0030] Example 1

[0031] Please refer to the instruction manual Figure 1-5 A substation includes a substation main body 1, a current transformer fixing assembly 2 is installed on the inner bottom wall of the substation main body 1, and a wire fixing assembly 3 is installed on the current transformer fixing assembly 2; the current transformer fixing assembly 2 includes a driving assembly 21 and a fixing assembly 22, the driving assembly 21 is installed on the inner bottom wall of the substation main body 1, and a ring-shaped fixing assembly 22 and a ring-shaped wire fixing assembly 3 are arranged in a ring array on the driving assembly 21, and the wire fixing assembly 3 is connected to the driving assembly 21.

[0032] When the utility model is used, the current transformer is placed on the driving component 21, three wires are passed through the through hole 12 and the current transformer, and the driving component 21 is started. The driving component 21 drives the fixing component 22 to clamp and fix the current transformer, and at the same time, the driving component 21 drives the wire fixing component 3 to fix the wires, thereby realizing the synchronous fixation of the current transformer and the three-phase guide in the substation cabinet.

[0033] The transformer cabinet body 1 includes a cabinet body 11 and a through hole 12 . The through hole 12 is opened on the inner bottom wall of the cabinet body 11 , and the drive assembly 21 is installed on the inner bottom wall of the cabinet body 11 .

[0034] The driving assembly 21 includes a hollow disc 211, a turntable 212, an arc groove 213, a cam follower 214, a first slider 215, a first slide groove 216, a connecting rod 217 and an electric push rod 218. The hollow disc 211 is fixedly mounted on the inner bottom wall of the cabinet 11 and is concentrically arranged with the through hole 12. The turntable 212 is rotatably mounted inside the hollow disc 211. A through groove concentric with the through hole 12 is provided on the middle of the turntable 212 and the hollow disc 211. There are three arc grooves 213 and they are evenly spaced along the central axis of the hollow disc 211 on the turntable 212. A cam follower 214 is fitted and slidably connected in each arc groove 213. The hollow disc 211 is Three first slide grooves 216 are opened at equal intervals on the top, and the bottoms of the three first slide grooves 216 are respectively connected to the top of the arc groove 213. A first slider 215 is slidably connected in each first slide groove 216. The top of the cam follower 214 extends into the first slide groove 216 and is fixedly connected to the bottom of the first slider 215. One end of the connecting rod 217 is fixedly connected to the turntable 212, and the other end of the connecting rod 217 is hinged to the output end of the electric push rod 218. The electric push rod 218 is hinged to the inner bottom wall of the cabinet 11. Each first slider 215 extends to the outside of the first slide groove 216 and is connected to a fixing component 22. The wire fixing component 3 is installed on the first slider 215.

[0035] The fixing assembly 22 includes a second slider 221, an arc-shaped clamping block 222, a second slide groove 223 and a tension spring 224. A second slide groove 223 is opened on the top of each first slider 215, and each second slide groove 223 is slidably connected to the second slider 221. The inner end of the second slider 221 extends to the outer side of the second slide groove 223 and is fixedly connected to the arc-shaped clamping block 222. One end of the tension spring 224 is fixedly connected to the end of the second slider 221, and the other end is on the inner wall of the second slide groove 223.

[0036] When the present invention is in use, the current transformer is placed on the middle part of the top of the hollow disc 211, and the connecting rod 217 is driven to move by the electric push rod 218. The connecting rod 217 drives the turntable 212 to rotate. The three arc grooves 213 on the turntable 212 rotate to drive the corresponding cam follower 214 to move. The cam follower 214 drives the first slider 215 to slide in the first slide groove 216. The first slider 215 drives the second slider 221 to move. The second slider 221 drives the arc clamping block 222 to move, so that the three arc clamping blocks 222 clamp and fix the current transformer. At the same time, the first slider 215 drives the wire fixing assembly 3 to fix the three guides.

[0037] There are three wire fixing assemblies 3 , which are respectively connected to the three first sliders 215 .

[0038] The wire fixing assembly 3 includes a mounting block 31, a snap-fit ​​groove 32, an inner cavity 33, an oblique groove 34, an isosceles trapezoidal block 35, a contact pin 36, a right-angled trapezoidal block 37, a push rod 38 and a fixed slider 39. The top of each first slider 215 is fixedly mounted with a mounting block 31. A snap-fit ​​groove 32 is provided on the inner end outer wall of the mounting block 31. The inner cavity 33 is provided inside the mounting block 31. There are two oblique grooves 34 and they are symmetrically provided on the inner end outer wall of the mounting block 31. The two oblique grooves 34 are symmetrically arranged on both sides of the snap-fit ​​groove 32. The isosceles trapezoidal block 35 is provided in the inner cavity 33 for sliding connection. The snap-fit ​​groove 32 is elastically slidably connected to the contact pin 36. The contact pin 36 is The end slides through the inner wall of the engaging slot 32, extends into the inner cavity 33, and is fixedly connected to the isosceles trapezoidal block 35. The two hypotenuses of the isosceles trapezoidal block 35 are respectively slidably connected to the hypotenuses of the two right-angled trapezoidal blocks 37. The two sides of the right-angled trapezoidal blocks 37 facing away from each other are fixedly connected to push rods 38. The right-angled trapezoidal blocks 37 are slidably connected within the inner cavity 33, and the push rods 38 are elastically slidably connected within the inner cavity 33. A fixed slider 39 is slidably provided within each oblique slot 34. One end of the fixed slider 39 extends to the outside of the oblique slot 34, and the other end extends into the inner cavity 33 and can slide in contact with the end of the push rod 38. The fixed slider 39 is elastically slidably connected to the oblique slot 34. The contact pin 36 is connected to the arcuate slot 32 by a spring.

[0039] The push rod 38 is connected to the inner cavity 33 via a spring. The fixed slider 39 is also connected to the inclined slot 34 via a spring. The end of the push rod 38 away from the right-angled trapezoidal block 37 is provided with an inclined surface, and the end of the fixed slider 39 is provided with a spherical surface that slidably fits the inclined surface of the push rod 38.

[0040] When the present invention is in use, the first slider 215 drives the mounting block 31 to move, and the arc groove 32 positions the wire. After the contact pin 36 contacts the wire, the contact pin 36 is forced to compress the spring between it and the arc groove 32. At the same time, the contact pin 36 drives the isosceles trapezoidal block 35 to slide in the inner cavity 33. The isosceles trapezoidal block 35 and the right-angled trapezoidal block 37 slide in contact with each other, and the right-angled trapezoidal block 37 drives the two push rods 38 to move in opposite directions. The push rod 38 compresses the spring between it and the inner cavity 33. At the same time, the end inclined surface of the push rod 38 slides in contact with the end spherical surface of the fixed slider 39, so that the fixed slider 39 slides out of the inclined groove 34 and compresses the spring between it and the inclined groove 34. The ends of the two fixed sliders 39 located outside the inclined groove 34 clamp and fix the outer wall of the wire, thereby achieving the fixation of the wire.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A transformer cabinet, comprising a transformer cabinet body (1), characterized in that: A current transformer fixing assembly (2) is installed on the inner bottom wall of the transformer cabinet body (1), and a wire fixing assembly (3) is installed on the current transformer fixing assembly (2); The current transformer fixing assembly (2) comprises a driving assembly (21) and a fixing assembly (22); the driving assembly (21) is mounted on the inner bottom wall of the transformer cabinet body (1); three fixing assemblies (22) and three wire fixing assemblies (3) are arranged in a circular array on the driving assembly (21); the wire fixing assemblies (3) are connected to the driving assembly (21).

2. The transformer cabinet according to claim 1, characterized in that: The transformer cabinet body (1) comprises a cabinet body (11) and a through hole (12); the through hole (12) is provided on the inner bottom wall of the cabinet body (11); and the drive assembly (21) is installed on the inner bottom wall of the cabinet body (11).

3. The transformer cabinet according to claim 2, characterized in that: The driving assembly (21) comprises a hollow disc (211), a rotating disc (212), an arcuate groove (213), a cam follower (214), a first slider (215), a first slide groove (216), a connecting rod (217) and an electric push rod (218). The hollow disc (211) is fixedly mounted on the inner bottom wall of the cabinet (11) and is arranged concentrically with the through hole (12). The rotating disc (212) is rotatably mounted inside the hollow disc (211). A through groove concentric with the through hole (12) is provided on the middle of the rotating disc (212) and the hollow disc (211). Three arcuate grooves (213) are provided on the rotating disc (212) at equal intervals along the central axis of the hollow disc (211). A cam follower (214) is fitted and slidably connected in each of the arcuate grooves (213). The hollow disc Three first slide grooves (216) are provided at equal intervals on the top of (211), and the bottoms of the three first slide grooves (216) are respectively connected to the top of the arc groove (213), and a first slider (215) is slidably connected in each first slide groove (216). The top of the cam follower (214) extends into the first slide groove (216) and is fixedly connected to the bottom of the first slider (215). One end of the connecting rod (217) is fixedly connected to the turntable (212), and the other end of the connecting rod (217) is hinged to the output end of the electric push rod (218), and the electric push rod (218) is hinged to the inner bottom wall of the cabinet (11). Each first slider (215) extends to the outside of the first slide groove (216) and is connected to a fixing assembly (22), and the wire fixing assembly (3) is installed on the top of the first slider (215).

4. The transformer cabinet according to claim 3, characterized in that: The fixing assembly (22) includes a second slider (221), an arc-shaped clamping block (222), a second slide groove (223) and a tension spring (224). The top of each first slider (215) is provided with a second slide groove (223). Each second slide groove (223) is slidably connected to the second slider (221). The inner end of the second slider (221) extends to the outer side of the second slide groove (223) and is fixedly connected to the arc-shaped clamping block (222). One end of the tension spring (224) is fixedly connected to the end of the second slider (221), and the other end is on the inner wall of the second slide groove (223).

5. The transformer cabinet according to claim 4, characterized in that: There are three wire fixing assemblies (3) and they are respectively connected to three first sliders (215).

6. The transformer cabinet according to claim 5, characterized in that: The wire fixing assembly (3) comprises a mounting block (31), a snap-fit ​​groove (32), an inner cavity (33), an inclined groove (34), an isosceles trapezoidal block (35), a contact pin (36), a right-angled trapezoidal block (37), a push rod (38) and a fixed slider (39). The top of each first slider (215) is fixedly mounted with a mounting block (31). The inner end outer wall of the mounting block (31) is provided with a snap-fit ​​groove (32). The inner cavity (33) is provided inside the mounting block (31). The inclined grooves (34) are provided in two symmetrical positions on the inner end outer wall of the mounting block (31). The two inclined grooves (34) are symmetrically arranged on both sides of the snap-fit ​​groove (32). The isosceles trapezoidal block (35) is provided in the inner cavity (33) and is slidably connected. The snap-fit ​​groove (32) and the contact pin (36) are elastically slidably connected. The end of the contact pin (36) slides through the inner wall of the clamping groove (32) and extends into the inner cavity (33) to be fixedly connected to the isosceles trapezoidal block (35). The two oblique sides of the isosceles trapezoidal block (35) are respectively slidably connected to the oblique sides of the two right-angled trapezoidal blocks (37). The two right-angled trapezoidal blocks (37) are fixedly connected to the side surfaces away from each other with a push rod (38). The right-angled trapezoidal block (37) is slidably connected in the inner cavity (33). The push rod (38) is elastically slidably connected in the inner cavity (33). A fixed slider (39) is slidably provided in each inclined groove (34). One end of the fixed slider (39) extends to the outside of the inclined groove (34), and the other end extends into the inner cavity (33) and can slide in contact with the end of the push rod (38). The fixed slider (39) is elastically slidably connected to the inclined groove (34).

7. The transformer cabinet according to claim 6, characterized in that: The contact pin (36) and the clamping groove (32) are connected via a spring, the push rod (38) and the inner cavity (33) are connected via a spring, and the fixed slider (39) and the inclined groove (34) are connected via a spring.

8. The transformer cabinet according to claim 7, characterized in that: The end of the push rod (38) away from the right-angled trapezoidal block (37) is provided with an inclined surface, and the end of the fixed slider (39) is provided with a spherical surface that fits the inclined surface of the push rod (38) and is in sliding connection.

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