A transformer noise isolation fence

Abstract

The utility model provides a kind of transformer noise isolation fence, including sound-absorbing baffle and locking mechanism;Two ends of sound-absorbing baffle are respectively clamped with a stand;Locking mechanism is detachably set on the upper end of stand, and sound-absorbing baffle is positioned and locked;Locking mechanism includes base, four telescopic components, clamping sleeve, adjusting assembly and top extension component;Base is fixed on the upper end of stand;Four telescopic components are embedded on the circumferential side wall of base with equal interval radially;Clamping sleeve is sleeved on the outside of base;Adjusting assembly is set on the upper end of clamping sleeve;Top extension component is movably embedded in base and coaxially arranged with adjusting assembly, and can be extruded under adjusting assembly, simultaneously push four telescopic components to move radially outside base, so that telescopic component is inserted on the inner side wall of clamping sleeve.The utility model can isolate and sound-absorbing effect to the noise generated by transformer, and while ensuring the stability of sound-absorbing baffle, reduce the dismounting difficulty of the transformer noise isolation fence.

Description

Technical Field

[0001] This utility model relates to the field of noise isolation technology, specifically to a transformer noise isolation enclosure. Background Technology

[0002] In power systems, transformers, as crucial electrical equipment, generate continuous noise during operation. This noise not only pollutes the surrounding environment and affects residents' daily lives and work, but may also fail to meet environmental regulations regarding noise emissions. Therefore, installing noise isolation barriers around transformers is an effective means of reducing noise impact.

[0003] Currently, existing transformer noise isolation barriers are typically composed of multiple panels joined together, with the panels connected to each other and to the supporting structure primarily using bolts or welding. However, this traditional connection method has the following drawbacks:

[0004] On the one hand, when installing the fencing, operators need to tighten a large number of bolts one by one or perform on-site welding, which not only consumes a lot of time and manpower but also requires a high level of technical skill from the installers, making it difficult to achieve fast and efficient installation. On the other hand, maintaining, replacing parts, or dismantling the fencing also involves tedious operations. Removing bolts requires extra force and time; welded connections require cutting operations, which are not only complex but may also damage surrounding structures, and the waste generated during the cutting process will also have a certain impact on the environment. Utility Model Content

[0005] The purpose of this utility model is to provide a transformer noise isolation enclosure, which effectively solves the technical problem of the difficulty in disassembling and assembling existing transformer noise isolation enclosures.

[0006] To solve the above-mentioned technical problems, this utility model provides a transformer noise isolation enclosure, including a noise-absorbing baffle and a locking mechanism; a column is respectively snapped into each end of the noise-absorbing baffle; the locking mechanism is detachably installed on the upper end of the column and limits and locks the noise-absorbing baffle; the locking mechanism includes a base, four telescopic components, a snap-fit ​​sleeve, an adjusting component, and a top extension component; the base is fixed to the upper end of the column; the four telescopic components are radially embedded at equal intervals on the circumferential sidewall of the base; the snap-fit ​​sleeve is sleeved outside the base; the adjusting component is installed on the upper end of the snap-fit ​​sleeve; the top extension component is movably embedded in the base and coaxially arranged with the adjusting component, and can simultaneously push the four telescopic components radially outward of the base under the pressure of the adjusting component, so that the telescopic components are inserted into the inner sidewall of the snap-fit ​​sleeve.

[0007] Preferably, the base has a central shaft hole, and a partition ring is provided on the inner peripheral wall of the central shaft hole, which divides the central shaft hole into an extrusion groove and an extension groove; the extrusion groove is located above the extension groove; the extension assembly includes a top plate, an extrusion rod, an expansion rod, a first spring, and a mandrel; the top plate is slidably disposed in the extrusion groove; one end of the extrusion rod is connected to the top plate, and the other end extends through the central hole of the partition ring into the extension groove and is connected to the expansion rod; the first spring is sleeved on the extrusion rod, and both ends of the first spring are connected to the top plate and the partition ring respectively; the mandrel is connected to the lower end of the expansion rod.

[0008] Preferably, the telescopic assembly includes a fixed sleeve, a push block, a plug-in post, and a second spring; the fixed sleeve is embedded in a groove on the side wall of the extension slot; one end of the push block is slidably inserted into the fixed sleeve, and the other end extends radially to below the top head; and the end of the push block near the top head forms a downwardly inclined push surface; one end of the plug-in post is connected to the end of the push block located in the fixed sleeve, and the other end extends radially away from the push block to the center hole at the end of the fixed sleeve; the second spring is fixed in the fixed sleeve and sleeved on the outside of the plug-in post.

[0009] Preferably, the adjusting assembly includes an adjusting cylinder, an adjusting bolt, and a pressure plate; the adjusting cylinder is fixed to the upper end of the snap-fit ​​sleeve, and the upper end of the adjusting cylinder has a threaded hole, and the adjusting cylinder is provided with a receiving cavity below the threaded hole; the receiving cavity is connected to the extrusion groove; the adjusting bolt passes through the threaded hole and is threadedly connected to the threaded hole; the pressure plate is disposed in the receiving cavity and is connected to the adjusting bolt.

[0010] Preferably, the outer perimeter of the column is provided with four longitudinal slots at equal intervals; the two ends of the sound-absorbing baffle are respectively provided with locking strips that are adapted to the longitudinal slots; the two locking strips are respectively locked into one longitudinal slot of the two columns.

[0011] Preferably, a plurality of parallel sound-absorbing holes are provided on one side wall of the sound-absorbing baffle; the interior of the sound-absorbing baffle forms a cavity for filling sound-absorbing cotton; the cavity is connected to the sound-absorbing holes.

[0012] Preferably, a limiting groove is provided on each of the two side walls of the fixed sleeve, and a limiting block is provided on each of the two sides of the end of the push block located inside the fixed sleeve, and the limiting block is slidably connected to the limiting groove.

[0013] Preferably, the bottom of the column is provided with a mounting base.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] (1) The transformer noise isolation enclosure provided by this utility model is equipped with a sound-absorbing baffle and a locking mechanism. The two ends of the sound-absorbing baffle are respectively connected to a column, and the locking mechanism is equipped with a base, four telescopic components, a snap-fit ​​sleeve, an adjustment component and a top extension component. Through the cooperation of the above components, it can not only isolate and absorb the noise generated by the transformer, but also reduce the difficulty of disassembling and assembling the transformer noise isolation enclosure and improve the construction efficiency while ensuring the stability of the sound-absorbing baffle.

[0016] (2) The transformer noise isolation enclosure provided by this utility model has a central shaft hole in the base, and a baffle ring is provided on the inner peripheral wall of the central shaft hole to divide the central shaft hole into a squeezing groove and a top extension groove. The top extension assembly is provided with a top plate, a squeezing rod, an expansion rod, a first spring and a top head. Through the cooperation between the above components, the top extension assembly can extend four telescopic components under the squeezing action of the adjustment assembly, and can be reset under the action of the first spring.

[0017] (3) The transformer noise isolation enclosure provided by this utility model has a fixed sleeve, a push block, a plug-in post and a second spring in the telescopic component. The push block has a downwardly inclined push surface at the end near the top. Through the cooperation between the above components, when the telescopic component is squeezed by the adjustment component, the push block can be pushed by the contact between the top and the push surface to drive the plug-in post to extend out of the fixed sleeve and realize the plug-in with the snap-fit ​​sleeve. When the top is reset, the second spring can reset and drive the plug-in post to automatically retract into the fixed sleeve so as to disassemble the snap-fit ​​sleeve.

[0018] (4) The transformer noise isolation enclosure provided by this utility model has an adjusting component with an adjusting cylinder, adjusting bolts and a pressure plate. The adjusting cylinder has a threaded hole and a receiving cavity. Therefore, by loosening or tightening the adjusting bolts, the pressure plate can be moved up and down relative to the receiving cavity, thereby squeezing or releasing the top plate, and thus realizing the installation and disassembly of the snap-fit ​​sleeve. The operation is simple and convenient, which greatly improves the installation and disassembly efficiency of the transformer noise isolation enclosure.

[0019] (5) The transformer noise isolation enclosure provided by this utility model can effectively absorb and reduce the noise generated by the transformer by setting a cavity inside the sound-absorbing baffle and filling the cavity with sound-absorbing cotton (such as glass wool), and facing the side panel with sound-absorbing holes of the sound-absorbing baffle towards the transformer, thereby improving the overall sound absorption effect.

[0020] (6) The transformer noise isolation enclosure provided by this utility model has a limit groove in the fixed sleeve and a limit block in the push block position. Through the cooperation of the limit block and the limit groove, it can not only guide the sliding of the push block in the fixed sleeve and ensure that the push block moves stably in the preset direction, but also prevent the push block from deviating or falling off during the sliding process, thereby improving the stability of the telescopic component operation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the prior art and the embodiments of this application, the drawings used in the description of the prior art and the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram showing the usage status of a transformer noise isolation enclosure according to this utility model.

[0023] Figure 2 This is a schematic diagram of the assembly structure of the column and the base in this utility model.

[0024] Figure 3 This is a cross-sectional view of the locking mechanism in this utility model.

[0025] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0026] Figure 5 This is a schematic diagram of the telescopic component in this utility model.

[0027] Figure 6 for Figure 5 A magnified view of a section at point B in the middle.

[0028] Figure 7 This is a schematic diagram of the top extension component in this utility model.

[0029] Figure 8 This is a cross-sectional view of the sound-absorbing baffle in this utility model.

[0030] Explanation of reference numerals in the attached drawings: Silencing baffle 10, locking strip 11, silencing hole 12, cavity 13, locking mechanism 20, base 21, partition ring 21a, extrusion groove 21b, top extension groove 21c, telescopic assembly 22, fixing sleeve 22a, pushing block 22b, plug-in post 22c, second spring 22d, pushing surface 22e, limiting groove 22f, limiting block 22g, locking sleeve 23, adjusting assembly 24, adjusting cylinder 24a, adjusting bolt 24b, pressure plate 24c, threaded hole 24d, receiving cavity 24e, top extension assembly 25, top plate 25a, extrusion rod 25b, expansion rod 25c, first spring 25d, top head 25e, column 30, longitudinal groove 31, mounting base 32. Detailed Implementation

[0031] To better understand the purpose, structure, and function of this utility model, the following detailed description of a transformer noise isolation enclosure provided by this utility model is provided in conjunction with the accompanying drawings, so that those skilled in the art can better understand and implement this utility model. However, the embodiments described are not intended to limit this utility model.

[0032] Please see Figures 1 to 8 As shown, this application embodiment provides a transformer noise isolation enclosure, including a noise-absorbing baffle 10 and a locking mechanism 20; a column 30 is respectively snapped onto both ends of the noise-absorbing baffle 10; the locking mechanism 20 is detachably disposed on the upper end of the column 30 and limits and locks the noise-absorbing baffle 10; the locking mechanism 20 includes a base 21, four telescopic components 22, a snap-fit ​​sleeve 23, an adjusting component 24, and a top extension component 25; the base 21 is fixed to the upper end of the column 30; the four telescopic components 22 are radially embedded at equal intervals on the circumferential sidewall of the base 21; the snap-fit ​​sleeve 23 is sleeved on the outside of the base 21; the adjusting component 24 is disposed on the upper end of the snap-fit ​​sleeve 23; the top extension component 25 is movably embedded in the base 21 and coaxially disposed with the adjusting component 24, and can simultaneously push the four telescopic components 22 to move radially outward of the base 21 under the compression of the adjusting component 24, so that the telescopic components 22 are inserted into the inner sidewall of the snap-fit ​​sleeve 23. The bottom of the column 30 is provided with a mounting base 32 for fixing the column 30.

[0033] Because of the presence of a noise-absorbing baffle 10 and a locking mechanism 20, with a column 30 attached to each end of the noise-absorbing baffle 10, and the locking mechanism 20 consisting of a base 21, four telescopic components 22, a snap-fit ​​sleeve 23, an adjustment component 24, and a top extension component 25, the combined use of these components not only isolates and reduces the noise generated by the transformer, but also reduces the difficulty of disassembling and assembling the transformer noise isolation enclosure while ensuring the stability of the noise-absorbing baffle 10, thus improving construction efficiency.

[0034] Specifically, a noise-absorbing baffle 10 is installed to isolate and reduce the noise generated by the transformer. Four longitudinal slots 31 are evenly spaced on the outer perimeter of the column 30; each end of the noise-absorbing baffle 10 has a locking strip 11 that matches the longitudinal slots 31; two locking strips 11 are respectively engaged in one longitudinal slot 31 of each of the two columns 30. The engagement of the longitudinal slots 31 and the locking strips 11 allows for quick disassembly, assembly, and maintenance of the noise-absorbing baffle 10. Furthermore, the four longitudinal slots 31 on the outer perimeter of the column 30 facilitate the splicing of the noise-absorbing baffle 10, thereby changing the length or width of the transformer noise isolation enclosure to suit the actual size of the transformer and effectively isolate and reduce the noise generated by the transformer. The base 21 is fixed at the center of the upper end of the column 30 and is located in the middle of the four longitudinal slots 31. The locking strip 11 is engaged in the longitudinal slots 31 and is flush with the upper end of the column 30. By sleeved with a locking sleeve 23 on the outside of the base 21, the locking sleeve 23 can press against the locking strip 11 to limit its position. By setting four telescopic components 22 on the circumferential side wall of the base 21, when the adjusting bolt 24b of the adjusting component 24 is tightened, the pressure plate 24c of the adjusting component 24 can squeeze the top extension component 25 and simultaneously push the four telescopic components 22 to move radially outward from the base 21, so that the insertion post 22c of the telescopic component 22 is inserted into the limiting hole on the inner side wall of the locking sleeve 23, thereby limiting the locking sleeve 23 and preventing it from detaching from the base 21, thus achieving the limiting and locking of the muffler baffle 10. Conversely, when the adjusting bolt 24b of the adjusting component 24 is loosened until its pressure plate 24c no longer presses against the extension component 25, the insertion post 22c of the telescopic component 22 disengages from the limiting hole of the snap sleeve 23 and retracts into the base 21, so that the snap sleeve 23 can be removed from the base 21, and the muffler baffle 10 can be disassembled. The operation is simple and convenient, which greatly improves the disassembly and assembly efficiency of the muffler baffle 10.

[0035] In a preferred embodiment, the base 21 has a central shaft hole, and a partition ring 21a is provided on the inner peripheral wall of the central shaft hole. The partition ring 21a divides the central shaft hole into an extrusion groove 21b and an extension groove 21c. The extrusion groove 21b is located above the extension groove 21c. The extension assembly 25 includes a top plate 25a, an extrusion rod 25b, an expansion rod 25c, a first spring 25d, and a top head 25e. The top plate 25a is slidably disposed in the extrusion groove 21b. One end of the extrusion rod 25b is connected to the top plate 25a, and the other end extends through the central hole of the partition ring 21a into the extension groove 21c and is connected to the expansion rod 25c. The first spring 25d is sleeved on the outside of the extrusion rod 25b, and both ends of the first spring 25d are connected to the top plate 25a and the partition ring 21a, respectively. The top head 25e is connected to the lower end of the expansion rod 25c.

[0036] Since the base 21 has a central shaft hole, and the inner peripheral wall of the central shaft hole is provided with a baffle ring 21a that divides the central shaft hole into a pressing groove 21b and a top extension groove 21c, and the top extension assembly 25 is provided with a top plate 25a, a pressing rod 25b, an expanding rod 25c, a first spring 25d, and a top head 25e, through the cooperation of the above components, the top extension assembly 25 can extend the four telescopic components 22 under the pressing action of the adjusting assembly 24, and can be reset under the action of the first spring 25d.

[0037] Specifically, the top plate 25a moves downward relative to the extrusion groove 21b under the pressure of the adjusting component 24. While driving the extrusion rod 25b downward, it simultaneously drives the expansion rod 25c and the top head 25e downward. The first spring 25d is compressed under the extrusion force. The top head 25e pushes the four telescopic components 22 to move radially. As the top head 25e moves downward, the telescopic components 22 are extended to a greater and greater length until the push block 22b of the telescopic component 22 abuts against the outer peripheral wall of the expansion section. The telescopic component 22 then stops extending. The expansion section can effectively prevent the telescopic component 22 from retracting and ensure that it remains in an extended state to achieve a locking and limiting effect with the snap-fit ​​sleeve 23. When the top plate 25a loses the squeezing force of the adjusting component 24, the first spring 25d resets and drives the top plate 25a to move upward, while simultaneously driving the squeezing rod 25b, the expanding rod 25c and the top head 25e to move upward. The telescopic component 22 automatically retracts into the base 21 without the limiting effect of the expanding part.

[0038] In a preferred embodiment, the telescopic assembly 22 includes a fixed sleeve 22a, a push block 22b, a plug post 22c, and a second spring 22d. The fixed sleeve 22a is embedded in a groove on the side wall of the extension groove 21c. One end of the push block 22b is slidably inserted into the fixed sleeve 22a, and the other end extends radially to below the top head 25e. The end of the push block 22b near the top head 25e forms a downwardly inclined push surface 22e. One end of the plug post 22c is connected to the end of the push block 22b located in the fixed sleeve 22a, and the other end extends radially away from the push block 22b to the center hole at the end of the fixed sleeve 22a. The second spring 22d is fixed in the fixed sleeve 22a and sleeved on the outside of the plug post 22c.

[0039] Since the telescopic assembly 22 is provided with a fixed sleeve 22a, a push block 22b, a plug-in post 22c, and a second spring 22d, and the push block 22b has a downwardly inclined push surface 22e at the end near the top head 25e, through the cooperation of the above components, when the telescopic assembly 25 is squeezed by the adjusting assembly 24, the push block 22b can be pushed by the contact between the top head 25e and the push surface 22e to drive the plug-in post 22c to extend out of the fixed sleeve 22a and insert into the snap-fit ​​sleeve 23; and when the top head 25e is reset, the second spring 22d can be reset to drive the plug-in post 22c to automatically retract into the fixed sleeve 22a so that the snap-fit ​​sleeve 23 can be disassembled.

[0040] In a preferred embodiment, the adjusting assembly 24 includes an adjusting cylinder 24a, an adjusting bolt 24b, and a pressure plate 24c; the adjusting cylinder 24a is fixed to the upper end of the snap-fit ​​sleeve 23, and the upper end of the adjusting cylinder 24a is provided with a threaded hole 24d, and a receiving cavity 24e is provided below the threaded hole 24d; the receiving cavity 24e is connected to the extrusion groove 21b; the adjusting bolt 24b passes through the threaded hole 24d and is threadedly connected to the threaded hole 24d; the pressure plate 24c is disposed in the receiving cavity 24e and is connected to the adjusting bolt 24b.

[0041] Since the adjusting assembly 24 is equipped with an adjusting cylinder 24a, an adjusting bolt 24b, and a pressure plate 24c, and the adjusting cylinder 24a has a threaded hole 24d and a receiving cavity 24e, the pressure plate 24c can be moved up and down relative to the receiving cavity 24e by loosening or tightening the adjusting bolt 24b, thereby squeezing or releasing the top plate 25a, and thus realizing the installation and disassembly of the snap-fit ​​sleeve 23. The operation is simple and convenient, which greatly improves the installation and disassembly efficiency of the transformer noise isolation enclosure.

[0042] In a preferred embodiment, a plurality of parallel sound-absorbing holes 12 are provided on one side wall of the sound-absorbing baffle 10; a cavity 13 for filling sound-absorbing cotton is formed inside the sound-absorbing baffle 10; the cavity 13 is connected to the sound-absorbing holes 12.

[0043] By setting a cavity 13 inside the silencing baffle 10 and filling the cavity 13 with sound-absorbing cotton (such as glass wool), and facing the transformer with the side panel of the silencing baffle 10 with the sound-absorbing hole 12, the noise generated by the transformer can be effectively absorbed and reduced, thus improving the overall sound absorption effect.

[0044] Preferably, a limiting groove 22f is provided on each of the two side walls of the fixed sleeve 22a, and a limiting block 22g is provided on each of the two sides of the push block 22b located inside the fixed sleeve 22a. The limiting block 22g is slidably connected to the limiting groove 22f.

[0045] Since the fixed sleeve 22a has a limiting groove 22f and the push block 22b is provided with a limiting block 22g, the combination of the limiting block 22g and the limiting groove 22f can not only guide the sliding of the push block 22b in the fixed sleeve 22a and ensure that the push block 22b moves stably in the preset direction, but also prevent the push block 22b from deviating or falling off during the sliding process, thereby improving the stability of the telescopic component 22.

[0046] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A transformer noise isolation enclosure, characterized in that, The device includes a silencing baffle (10) and a locking mechanism (20); each end of the silencing baffle (10) is respectively secured to a column (30); the locking mechanism (20) is detachably mounted on the upper end of the column (30) and limits and locks the silencing baffle (10); the locking mechanism (20) includes a base (21), four telescopic components (22), a snap-fit ​​sleeve (23), an adjusting component (24), and a top extension component (25); the base (21) is fixed to the upper end of the column (30); the four telescopic components (22) are evenly spaced. The base (21) is radially embedded in the circumferential sidewall of the base (21); the snap sleeve (23) is sleeved on the outside of the base (21); the adjustment component (24) is disposed at the upper end of the snap sleeve (23); the top extension component (25) is movably embedded in the base (21) and coaxially disposed with the adjustment component (24), and can simultaneously push the four telescopic components (22) to move radially outward of the base (21) under the pressure of the adjustment component (24), so that the telescopic components (22) are inserted into the inner sidewall of the snap sleeve (23).

2. The transformer noise isolation enclosure according to claim 1, characterized in that, The base (21) has a central shaft hole, and a partition ring (21a) is provided on the inner peripheral wall of the central shaft hole. The partition ring (21a) divides the central shaft hole into an extrusion groove (21b) and an extension groove (21c). The extrusion groove (21b) is located above the extension groove (21c). The extension assembly (25) includes a top plate (25a), an extrusion rod (25b), an expansion rod (25c), a first spring (25d), and a top head (25e). The top plate (25a) is slidably disposed on the extrusion groove. Inside the groove (21b); one end of the extrusion rod (25b) is connected to the top plate (25a), and the other end extends through the central hole of the partition ring (21a) into the top extension groove (21c) and is connected to the expansion rod (25c); the first spring (25d) is sleeved on the outside of the extrusion rod (25b), and both ends of the first spring (25d) are connected to the top plate (25a) and the partition ring (21a) respectively; the top head (25e) is connected to the lower end of the expansion rod (25c).

3. The transformer noise isolation enclosure according to claim 2, characterized in that, The telescopic assembly (22) includes a fixed sleeve (22a), a push block (22b), a plug post (22c), and a second spring (22d); the fixed sleeve (22a) is embedded in a groove on the side wall of the extension groove (21c); one end of the push block (22b) is slidably inserted into the fixed sleeve (22a), and the other end extends radially to below the top head (25e); and the end of the push block (22b) near the top head (25e) forms a downwardly inclined push surface (22e); one end of the plug post (22c) is connected to the end of the push block (22b) located in the fixed sleeve (22a), and the other end extends radially to the end center hole of the fixed sleeve (22a) away from the push block (22b); the second spring (22d) is fixed in the fixed sleeve (22a) and sleeved on the outside of the plug post (22c).

4. The transformer noise isolation enclosure according to claim 2, characterized in that, The adjusting assembly (24) includes an adjusting cylinder (24a), an adjusting bolt (24b), and a pressure plate (24c); the adjusting cylinder (24a) is fixed to the upper end of the snap-fit ​​sleeve (23), and the upper end of the adjusting cylinder (24a) is provided with a threaded hole (24d), and the adjusting cylinder (24a) is provided with a receiving cavity (24e) below the threaded hole (24d); the receiving cavity (24e) is connected to the extrusion groove (21b); the adjusting bolt (24b) passes through the threaded hole (24d) and is threadedly connected to the threaded hole (24d); the pressure plate (24c) is disposed in the receiving cavity (24e) and is connected to the adjusting bolt (24b).

5. The transformer noise isolation enclosure according to any one of claims 1 to 4, characterized in that, The outer periphery of the column (30) is provided with four longitudinal slots (31) at equal intervals; the two ends of the sound-absorbing baffle (10) are respectively provided with a locking strip (11) that is compatible with the longitudinal slots (31); the two locking strips (11) are respectively locked into one longitudinal slot (31) of the two columns (30).

6. The transformer noise isolation enclosure according to claim 5, characterized in that, The sound-absorbing baffle (10) has a plurality of parallel sound-absorbing holes (12) on one side wall; the sound-absorbing baffle (10) has a cavity (13) inside for filling sound-absorbing cotton; the cavity (13) is connected to the sound-absorbing holes (12).

7. The transformer noise isolation enclosure according to claim 3, characterized in that, The fixed sleeve (22a) has a limiting groove (22f) on each of its two side walls. The push block (22b) is located inside the fixed sleeve (22a) and has a limiting block (22g) on ​​each of its two sides. The limiting block (22g) is slidably connected to the limiting groove (22f).

8. The transformer noise isolation enclosure according to claim 5, characterized in that, The bottom of the column (30) is provided with a mounting base (32).

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