A mounting and fixing mechanism of a through-type mutual inductor

Abstract

The application discloses a mounting and fixing mechanism of a through-type mutual inductor, which comprises a base and a positioning and adjusting assembly; the positioning and adjusting assembly comprises an adjusting rod, a first fixing part and a second fixing part; the adjusting rod is arranged through the base; the second fixing part is arranged on the top of the base; the first fixing part is arranged on the base at the bottom and corresponds to the second fixing part; and the first fixing part and the second fixing part are matched with each other to clamp and fix two ends of the through-type mutual inductor. The scheme has the advantages of simple structure, the ability of fixing the through-type mutual inductor through the mechanism, the solution to the defects of the present installation and the great improvement of the installation efficiency of the through-type mutual inductor.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, and specifically to an installation and fixing mechanism for a through-type current transformer. Background Technology

[0002] In the power industry, regarding the through-type instrument transformer assembly in indoor metal-clad withdrawable switchgear, it includes the through-type instrument transformer and the through-type instrument transformer mounting plate. The through-type instrument transformer has a cylindrical structure, and it is installed in conjunction with the through-type instrument transformer mounting plate. However, due to the large size and weight of the through-type instrument transformer, its installation has the following drawbacks:

[0003] (1) The installation method is unsafe. There is no reliable fixing mechanism. It can only be tied with cables, supported by manpower, and then pried and raised with iron or wooden poles. The through-core transformer is fixed with screws by the auxiliary personnel in the equipment cabinet. This installation method has the following problems: First, the strength of iron or wooden poles is questionable. Whether to pry the heavy through-core transformer is controlled by manpower, which is very easy to cause injury to the main personnel. Second, since the through-core transformer is not fixed during installation, it may accidentally injure the auxiliary personnel once the through-core transformer is about to move.

[0004] (2) It will cause damage to the through-type current transformer. The cable used to bind the through-type current transformer has a certain service life. Once wear occurs, the cable will break, which will not only injure the installers, but also damage the through-type current transformer, causing economic losses.

[0005] (3) During installation, since the through-type current transformer is not firmly fixed, a certain number of personnel are required to prevent accidents. The excessive personnel allocation reduces work efficiency.

[0006] The aforementioned defects significantly reduce the installation efficiency of through-type instrument transformers. Therefore, improving the installation efficiency of through-type instrument transformers is a problem that needs to be solved in this field. Summary of the Invention

[0007] To address the technical problem of low installation efficiency in existing through-type instrument transformers, the present invention aims to provide an installation and fixing mechanism for through-type instrument transformers, which can greatly improve the installation efficiency of through-type instrument transformers and effectively overcome the problems existing in the prior art.

[0008] To achieve the above objectives, the present invention provides an installation and fixing mechanism for a through-type current transformer, comprising a base and a positioning adjustment assembly; the positioning adjustment assembly includes an adjustment rod, a first fixing member, and a second fixing member; the adjustment rod passes through the base; the second fixing member is disposed at the top of the base; the first fixing member is disposed at the bottom of the base corresponding to the second fixing member; the first fixing member and the second fixing member cooperate with each other to clamp and fix both ends of the through-type current transformer.

[0009] Furthermore, the first fixing member and the second fixing member cooperate to form the first fixing point and the second fixing point of the through-type current transformer.

[0010] Furthermore, the adjusting rod passes through the base and can move relative to the base; the side wall of the adjusting rod is provided with a waist hole, which can be used to limit the position of the adjusting rod movement by a threaded pin.

[0011] Furthermore, the positioning adjustment assembly also includes a crank arm; one end of the crank arm is connected to the top of the adjustment rod and is connected to the adjustment rod through a hinge structure, and the other end is connected to the second fixing member; the crank arm can drive the second fixing member to rotate in a first direction and a second direction relative to the adjustment rod through the hinge structure.

[0012] Furthermore, the side wall of the adjusting rod is also provided with a positioning pin, which passes through the adjusting rod and the crank arm to position the adjusting rod and the crank arm.

[0013] Furthermore, the mounting and fixing mechanism of the through-type current transformer also includes a baffle assembly; the baffle assembly is disposed through the base and can move axially relative to the base.

[0014] Furthermore, the baffle assembly includes a slider, a stop block, a shaft, and a compression spring; the slider has a transversely extending mounting groove for mounting the stop block, and the stop block is installed in the mounting groove with a gap between it and one end of the slider.

[0015] The slider has a through hole in the middle for mounting a shaft. One end of the shaft is connected to one side of the slider, and the other end passes through the stop block and is connected to the other side of the slider. The shaft can move the baffle assembly axially to form a guide structure.

[0016] The slider has a through hole on one side and a groove around the stop hole. The compression spring is sleeved on the shaft and its two ends are respectively embedded in the groove, abutting against the slider and the stop respectively. The slider can move axially relative to the base by the force of the compression spring.

[0017] Furthermore, one end of the slider is a flat end, and the other end is a beveled end; the flat end of the slider is located at the bottom of the base, and the beveled end is located at the top of the base.

[0018] Furthermore, the oblique end of the slider is fitted with the through-type current transformer, which can form the third fixed support point of the through-type current transformer.

[0019] Furthermore, the slider has a handle at its flat end, and the slider is driven to move axially relative to the base under the force of the compression spring by pushing or pulling the handle.

[0020] The installation and fixing mechanism for the through-type current transformer provided by this invention has a simple structure and can fix the through-type current transformer through the mechanism, which solves the defects of the current installation and greatly improves the installation efficiency of the through-type current transformer. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the mounting and fixing mechanism for this through-type instrument transformer.

[0023] Figure 2 This is a plan view of the fixing plate structure in the installation and fixing mechanism of this through-type instrument transformer;

[0024] Figure 3 This is a sectional view of the fixing plate structure in the installation and fixing mechanism of this through-type instrument transformer;

[0025] Figure 4 This is a schematic diagram of the top of the fixing plate structure in the installation and fixing mechanism of this through-type current transformer;

[0026] Figure 5 This is a schematic diagram of the rear structure of the positioning and adjusting component in the mounting and fixing mechanism of this through-type current transformer;

[0027] Figure 6 This is a side view of the positioning and adjusting assembly in the mounting and fixing mechanism of this through-type current transformer.

[0028] Figure 7 This is a schematic diagram of the top structure of the baffle assembly in the installation and fixing mechanism of this through-type current transformer;

[0029] Figure 8 This is a structural cross-sectional view of the baffle assembly in the mounting and fixing mechanism of this through-type instrument transformer;

[0030] Figure 9 This is a schematic diagram of the baffle assembly in the installation and fixing mechanism of this through-type current transformer;

[0031] Figure 10 This is a schematic diagram of the vertical installation of the mounting and fixing mechanism for this through-type current transformer.

[0032] Figure 11This is a sectional view of the vertically mounted installation and fixing mechanism of the through-type current transformer.

[0033] Figure 12 This is a schematic diagram of the horizontal installation plan of the mounting and fixing mechanism for this through-type instrument transformer.

[0034] Figure 13 This is a cross-sectional view of the horizontally mounted installation and fixing mechanism of this through-type instrument transformer.

[0035] The following are the component labels in the attached diagram:

[0036] 100. Base; 200. Positioning and Adjustment Assembly; 300. Baffle Assembly

[0037] 110. Fixing plate 210. First fixing component 220. Crank arm 230. Threaded pin 240. Positioning pin 250. Adjusting rod 260. Second fixing component 270. Threaded pin 280. Waist hole 310. Slider 320. Stop block 330. Compression spring 340. Shaft 350. First threaded pin 360. Second threaded pin 370. Handle 400. Through-type current transformer 500. Through-type current transformer mounting plate. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0039] To address the technical problem of low installation efficiency in existing through-type instrument transformers, this solution provides an installation and fixing mechanism for through-type instrument transformers. This mechanism has a simple structure and can fix the through-type instrument transformer, solving the current installation defects and greatly improving the installation efficiency of through-type instrument transformers.

[0040] See Figure 1 The installation and fixing mechanism for the through-type current transformer provided in this solution includes a base 100, a positioning adjustment component 200, and a baffle assembly 300.

[0041] Among them, see Figures 2-4 The base 100 is the mounting body and fixing base of the entire mounting and fixing mechanism, and it is the fixing plate 110.

[0042] The fixing plate 110 is the entire base plate, which is provided with several mounting holes, threaded holes and through holes, which can be connected to the positioning adjustment component 200 and the baffle component 300 respectively.

[0043] The positioning adjustment assembly 200 is used to fix the through-type current transformer 400. It is set on the fixing plate 110 and connected to the fixing plate 110 through the mounting holes.

[0044] See Figures 2-6 The positioning adjustment assembly 200 includes a first fixing member 210, a second fixing member 260, a crank arm 220, an adjusting rod 250, a threaded pin 230, a positioning pin 240, and a threaded pin 270.

[0045] The adjusting rod 250 is installed through the fixed plate 110 and can move up and down relative to the fixed plate 110. Its top end is provided with a groove that is connected to the crank arm 220. Its side is provided with three pin holes on different planes, namely the first pin hole, the second pin hole and the waist hole 280, which can be connected to the threaded pin 230, the positioning pin 240 and the threaded pin 270 respectively.

[0046] One end of the crank arm 220 is embedded in the groove at the top of the adjusting rod 250, and the crank arm 220 is connected to the adjusting rod 250 by passing through the first pin hole on the side wall of the adjusting rod 250 via the threaded pin 230. The crank arm 220 can rotate clockwise or counterclockwise relative to the adjusting rod 250 along the threaded pin 230.

[0047] Meanwhile, the arm 220 can be fixed to the adjusting rod 250 by passing the positioning pin 240 through the second pin hole on the side wall of the adjusting rod 250.

[0048] Furthermore, a second fixing member 260 is provided at the bottom of the other end of the crank arm 220. The second fixing member 260 is a block with an outwardly convex arc surface structure at the end face, which is used to press against the wall of the through-type current transformer 400 to form the second fixing support point of the through-type current transformer 400.

[0049] Furthermore, the first fixing member 210 is a block, which is used to fit and fix the wall of the through-type current transformer 400 to form the first fixing support point of the through-type current transformer 400.

[0050] The first fixing member 210 is installed in the middle of the fixing plate 110 and is connected to the fixing plate 110 through the mounting hole; its top surface is an arc surface. The use of an arc surface can better fit the wall surface of the cylindrical through-hole current transformer 400, so that it can fit fully and improve the stability during fixing.

[0051] The threaded pin 270 is set on the fixed plate 110 and is connected to the waist hole 280 on the side wall of the adjusting rod 250. It can pass through the waist hole 280 on the side wall of the adjusting rod 250 and limit the stroke of the adjusting rod 250 moving up and down.

[0052] The choice of the type of threaded pin 270 is not limited here. It is preferable to use the threaded pin 270 with a handle. Since the threaded pin 270 needs to be adjusted manually, the threaded pin 270 with a handle is preferred because it is more convenient to manually turn the threaded pin 270. However, the specific choice can be determined according to the actual situation.

[0053] The first fixing member 210 and the second fixing member 260 in the positioning adjustment assembly 200 can form a clamping force on the through-type current transformer 400 and fix the through-type current transformer 400 disposed between the first fixing member 210 and the second fixing member 260.

[0054] Furthermore, the perforation on the fixing plate 110 is connected to the baffle assembly 300. The length and width of the perforation correspond to the baffle assembly 300, allowing the baffle assembly 300 to be clearance-fitted with the fixing plate 110 and to move up and down relative to the fixing plate 110.

[0055] Specifically, the baffle assembly 300 is used to fit and fix the wall of the through-type current transformer 400, forming the third fixed support point of the through-type current transformer 400.

[0056] Further, see Figures 7-9 The baffle assembly 300 includes a slider 310, a stop block 320, a compression spring 330, a shaft 340, a first threaded pin 350, a second threaded pin 360, and a handle 370.

[0057] The first threaded pin 350 and the second threaded pin 360 are disposed on both sides of the slider 310. By screwing out or retracting the first threaded pin 350 and the second threaded pin 360, the oblique surface of the slider 310 is mounted on or retracted into the fixed plate 110 relative to the fixed plate 110.

[0058] The slider 310 has a through mounting groove inside for mounting the stop block 320. The stop block 320 is installed in this mounting groove and has a certain travel distance from one end of the slider 310.

[0059] The slider 310 has a longitudinal through hole inside for mounting the shaft 340. One end of the shaft 340 is connected to one side of the slider 310, and the other end passes through the stop block 320 and is connected to the other side of the slider 310. The shaft 340 serves as a guide for the up-and-down movement of the baffle assembly 300.

[0060] In addition, a groove is provided on one side of the slider 310 and around the through hole of the stop block 320. The compression spring 330 is sleeved on the shaft 340 and its two ends are respectively embedded in the groove, which abut against the slider 310 and the stop block 320 respectively.

[0061] Therefore, the slider 310 can move back and forth relative to the slider 310 under the force of the compression spring 330, and the stroke of the movement is the gap between the stop block 320 and the slider 310.

[0062] Furthermore, one end of the slider 310 is a flat end, which is connected to the handle 370; the other end is a beveled surface.

[0063] With one end of the handle 370 placed at the bottom and the beveled surface at the top, passing through the hole in the fixing plate 110, and the stop block 320 fixedly connected to the fixing plate 110, the slider 310 can be moved up and down relative to the fixing plate 110 under the force of the compression spring 330 by pushing and pulling the handle 370. The up and down movement of the slider 310 can press the through-type current transformer 400 placed between the first fixing member 210 and the second fixing member 260 on the third side.

[0064] Therefore, it can be seen that the two sides of the through-type current transformer 400 can be clamped and fixed by the first fixing member 210 and the second fixing member 260, and the other two sides of the through-type current transformer 400 can be fixed by the threaded pin 270 and the slider 310, which can ensure the stability of the through-type current transformer 400.

[0065] The mounting and fixing mechanism for the through-type current transformer constructed by the above scheme is dual-purpose, satisfying both vertical and horizontal installation of the through-type current transformer. The following example illustrates the working process of this scheme in use. It should be noted that the following content is only a specific application example of this scheme and does not constitute a limitation on this scheme.

[0066] Vertical installation of through-type current transformer:

[0067] First, see Figures 10-11 This fixing mechanism is placed vertically by an external drive mechanism.

[0068] Therefore, the stop block 320 in the baffle assembly 300 of the baffle assembly is fixedly connected to the fixing plate 110 in the base assembly with screws. Since the fixing plate 110 is relatively stationary during installation, the baffle 320 is also relatively stationary. After ensuring that the first threaded pin 350 and the second threaded pin 360 are inside the stop block 320, the slider 310 will extend to the right due to the reaction force of the compression spring 330, supporting the through-core current transformer 400 as a fulcrum.

[0069] Above the through-type current transformer 400, it is clamped by the first fixing member 260 and the second fixing member 210. The ring spring positioning pin 240 is inserted to fix the crank arm 220. Then, the height of the adjusting rod 250 is adjusted to make the through-type current transformer 400 vertical. The threaded pin 270 with handle is tightened to fix the adjusting rod 250, forming another fulcrum. This constitutes two-point fixation, which fixes the through-type current transformer 400 in the vertical direction.

[0070] Release from fixation: After the through-type current transformer 400 is placed above the through-type current transformer mounting plate 500, pull the baffle 320 to the left. After pulling past the inflection point of the baffle 320, due to the slope of the baffle 320 and the weight of the through-type current transformer 400 itself, the through-type current transformer 400 will slide down and force the baffle 320 to move to the left. When the baffle 320 is fully retracted into the fixing plate 110, the through-type current transformer 400 falls onto the through-type current transformer mounting plate 500. Under the force of the compression spring 330, the stop block 320 resets. Pull out the ring spring positioning pin 240, the crank arm 220 is released from fixation, and the mechanism can be removed.

[0071] Horizontal installation of through-type current transformer:

[0072] First, see Figures 12-13 The fixed mechanism is placed horizontally by means of an external drive mechanism.

[0073] Pull down the stop block 320 and retract it into the fixing plate 110. Unscrew the first threaded pin 350 and the second threaded pin 360 to keep the stop block 320 in the retracted state. Place the through-type current transformer 400 horizontally on the fixing plate 110 and clamp it with the first fixing member 260 and the second fixing member 210. Insert the ring spring positioning pin 240 to fix the crank arm 220. Adjust the height of the adjusting rod 250 to make the through-type current transformer 400 vertical. Tighten the handle threaded pin 270 to fix the adjusting rod 250. The through-type current transformer 400 is now horizontally fixed.

[0074] After the fixing is released and the through-type current transformer 400 and the through-type current transformer mounting plate 500 are installed horizontally, pull out the ring spring positioning pin 240, the crank arm 220 is released from fixing, and the mechanism can be taken out.

[0075] The mounting and fixing mechanism for the through-type current transformer constructed by the above scheme is as follows:

[0076] Firstly, the mechanism is versatile, satisfying both vertical and horizontal installation requirements for the through-type current transformer, resulting in high economic efficiency.

[0077] Secondly, the structure is simple, easy to operate, and cost-effective.

[0078] Meanwhile, the fixing of the through-type current transformer is firm and reliable, solving the defects of the current installation, ensuring the safety of the installation, preventing damage to personnel and the through-type current transformer, and avoiding loss of personal safety and property safety.

[0079] In addition, by combining the installation equipment available on the market, fewer installation personnel are required, which greatly improves work efficiency.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A mounting and fixing mechanism for a through-type current transformer, characterized in that, It includes a base and a positioning adjustment assembly; the positioning adjustment assembly includes an adjustment rod, a first fixing member and a second fixing member; the adjustment rod is disposed through the base; The first fixing member is a block, installed in the middle of the base. The top surface of the first fixing member is an arc surface, which is used to fit and fix with the outer wall surface of the through-type current transformer, forming the first fixing support point of the through-type current transformer. The second fixing member is set on the adjusting rod corresponding to the first fixing member. The second fixing member is a block, and the end face is a convex arc surface structure, which is used to press against the inner wall surface of the through-type current transformer, forming the second fixing support point of the through-type current transformer. The first fixing member and the second fixing member cooperate with each other to clamp and fix the two sides of the side wall of the through-type current transformer. The mounting and fixing mechanism of the through-type current transformer also includes a baffle assembly; the baffle assembly is disposed through the base and can move axially relative to the base; the baffle assembly includes a slider, a stop block, a shaft and a compression spring; the slider has a transversely through-hole for mounting the stop block, the stop block is installed in the mounting groove and a gap is left between it and one end of the slider; The slider has a through hole in the middle for mounting a shaft. One end of the shaft is connected to one side of the slider, and the other end passes through the stop block and is connected to the other side of the slider. The shaft can move the baffle assembly axially to form a guide structure. The slider has a through hole on one side and a groove around the stop hole. The compression spring is sleeved on the shaft and its two ends are respectively embedded in the groove, abutting against the slider and the stop respectively. The slider can move axially relative to the base by the force of the compression spring.

2. The mounting and fixing mechanism for a through-type current transformer according to claim 1, characterized in that, The adjusting rod passes through the base and can move relative to the base; the side wall of the adjusting rod is provided with a waist hole, which can be used to set a threaded pin to limit the position of the adjusting rod.

3. The mounting and fixing mechanism for a through-type current transformer according to claim 1, characterized in that, The positioning adjustment assembly also includes a crank arm; one end of the crank arm is connected to the top of the adjustment rod and is connected to the adjustment rod through a hinge structure, and the other end is connected to the second fixing member; the crank arm can drive the second fixing member to rotate in a first direction and a second direction relative to the adjustment rod through the hinge structure.

4. The mounting and fixing mechanism for a through-type current transformer according to claim 1, characterized in that, The side wall of the adjusting rod is also equipped with a positioning pin, which passes through the adjusting rod and the crank arm to position the adjusting rod and the crank arm.

5. The mounting and fixing mechanism for a through-type current transformer according to claim 1, characterized in that, One end of the slider is a flat end, and the other end is a beveled end; the flat end of the slider is located at the bottom of the base, and the beveled end is located at the top of the base.

6. The mounting and fixing mechanism for a through-type current transformer according to claim 5, characterized in that, The oblique end of the slider is fitted to the through-type current transformer, which can form the third fixed support point of the through-type current transformer.

7. The mounting and fixing mechanism for a through-type current transformer according to claim 5, characterized in that, The slider is provided with a handle at its flat end. By pushing or pulling the handle, the slider is driven to move axially relative to the base under the force of the compression spring.

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