Network transformer housing and manufacturing method thereof

Abstract

The invention discloses a network transformer housing and a manufacturing method thereof, and relates to the field related to network transformer housings, including a housing, an anti-corrosion coating, a pin hole, and a reinforcement rib. The plastic transformer housing of the invention adopts a multi-layer reinforcement rib design, combined with a high-strength substrate, an impact-resistant layer, and a soft honeycomb liner, which significantly improves the mechanical strength and seismic resistance of the housing while maintaining lightweight. The reinforcement layer near the pin hole enhances the welding support force to ensure stable electrical connection. The exterior adopts epoxy resin or fluorocarbon coating, has excellent anti-corrosion, weather resistance, and insulation properties, and can operate stably for a long time in complex environments.

Description

Technical Field

[0001] The invention relates to the field related to network transformer housings, and in particular to a network transformer housing and a manufacturing method thereof. Background Art

[0002] The network transformer housing is a structural housing used to protect the core components of the network transformer. It is usually made of high-strength insulating materials or metals. Its design must meet the operating requirements of the network transformer in complex environments, ensure the safety and stability of internal electrical components, and improve the product's service life and performance by optimizing the structure and materials.

[0003] Chinese patent application number: CN202222119145.6 A high-temperature resistant network transformer shell, including a network transformer shell, a pin is provided at the front end of the network transformer shell, heat dissipation plates are provided on both sides of the network transformer shell, heat dissipation holes are provided inside the heat dissipation plates, two card blocks are provided on one side of the heat dissipation plate, spring grooves are provided inside both ends of the heat dissipation plates, a spring B is provided inside the spring groove, an insertion block is provided at one end of the spring B, inner grooves are provided inside both sides of the network transformer shell, a protruding rod is provided inside the inner groove, the protruding rod is inserted into the heat dissipation hole, fixed blocks are fixed at both ends of the inner groove, a card slot is provided inside the fixed block, the card block is inserted into the card slot, a slot is provided inside the network transformer shell, the insertion block is inserted into the slot, and the heat dissipation effect is enhanced while dust prevention is achieved through the storable and pull-out function of the heat dissipation plate.

[0004] The above patents and prior art have the following problems in actual use: the internal transformer components are protected only by the shell, which makes the internal components easily damaged by pressure and the protection effect is weak; and during the manufacturing process, cleaning is mostly static cleaning, which requires manual assistance, resulting in low efficiency. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a network transformer housing and a manufacturing method thereof.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a network transformer housing and a manufacturing method thereof, comprising a shell, the outer surface of the shell is coated with an anti-corrosion coating, pins are fixed to the bottom of the shell, and reinforcement ribs are arranged on the inside of the shell; the reinforcement bar is close to the pin position and is used to support and protect the bottom of the pin.

[0007] Preferably, the specific steps are as follows:

[0008] S1: Material preparation. The shell material is glass fiber reinforced polycarbonate. The reinforcement ribs include an impact-resistant layer, a buffer layer arranged outside the impact-resistant layer, and a reinforcement strip installed on the top of the impact-resistant layer. The impact-resistant layer and the reinforcement strip are made of high-toughness modified polycarbonate. The buffer layer is made of thermoplastic polyurethane honeycomb structure. The anti-corrosion coating is made of epoxy resin coating.

[0009] S2: Shell molding, design of injection mold, the mold needs to use an embedded multi-cavity mold, mold different material layers in steps, reserve space for the buffer layer, and design partial hollowing for subsequent filling of the buffer layer;

[0010] S3: Injection molding process, drying the glass fiber reinforced polycarbonate to ensure low moisture content and prevent molding defects. Injection molding shell base layer: using dual-cavity injection molding technology, the outer contour of the shell is molded in one step, and the reinforcement ribs are embedded. Using the double-material injection molding process, high-toughness modified polycarbonate is injected into the shell and near the pin position to form an impact-resistant layer. The flow channel balance optimization design is adopted to prevent uneven material distribution. Thermoplastic polyurethane material is injected into the reserved space of the ribs, and a soft honeycomb structure is formed through a micro-foaming process;

[0011] S4: Post-treatment process, deburring and polishing, then placing it in an auxiliary cleaning device for cleaning, removing surface residues and improving coating adhesion, and then starting external coating spraying, using epoxy resin coating, and then starting oven curing;

[0012] S5: Quality inspection, size inspection, strength test, impact test, seismic test and electrical performance test.

[0013] Preferably, the auxiliary cleaning device includes a box body, a driving motor arranged at the right end of the front end surface of the box body, a transmission mechanism arranged at the lower end of the box body and connected to the driving motor, a sweeping mechanism arranged at the left and right ends of the front end surface of the transmission mechanism, a placement frame arranged at the upper part of the box body, a fixing frame connecting the front and rear positions of the placement frame, guide columns arranged at the front and rear ends of the fixing frame, a guide groove opened at the upper end of the box body and movably embedded by the guide column, and a toggle plate arranged at the rear end of the transmission mechanism, and the top of the transmission mechanism is connected to the fixing frame.

[0014] Preferably, the transmission mechanism includes a bottom plate arranged at the lower end of the box body, supports arranged at the front and rear ends of the top of the bottom plate, a driving gear arranged at the right front end of the two groups of supports, a driven gear meshing with the left side of the driving gear, a first toggle wheel arranged on the back of the driving gear, a second toggle wheel arranged on the back of the driven gear, a follower gear meshing with the first toggle wheel and the second toggle wheel, a contact gear arranged on the back of the rear end support, a rack meshing with the top of the contact gear, a skateboard arranged on the top of the rack, and a bracket movably embedded in the skateboard and with the bottom fixed to the top of the bottom plate, the top of the skateboard is connected to the fixing frame, and the first toggle wheel and the second toggle wheel are both provided with convex teeth with half the circumference on the outer sides.

[0015] Preferably, three groups of shafts are arranged in the two groups of supports, the right end shaft is respectively connected to the driving gear and the first driving wheel, and the front end of the right end shaft is respectively connected to the output shaft of the driving motor and the sweeping mechanism at the right end, the left end shaft is respectively connected to the driven gear and the second driving wheel, the front end of the left end shaft is connected to the sweeping mechanism at the left end, and the upper end shaft is respectively connected to the follower gear and the contact gear.

[0016] Preferably, the sweeping mechanism includes a driving wheel respectively connected to two groups of shafts at the lower end of the support, a synchronous belt arranged on the outside of the driving wheel, a driven wheel connected to the outer end of the synchronous belt, a transmission box connected to the driven wheel and arranged on the inside of the box body, and a sweeping member arranged on the inside of the transmission box.

[0017] Preferably, a driving shaft connected to the driving wheel is provided at the lower end of the transmission box, a lower driving bevel gear is provided on the outer side of the driving shaft, the top of the lower driving bevel gear is meshed with the lower driven bevel gear, the middle of the lower driven bevel gear is connected to the connecting shaft, an upper driving bevel gear is provided on the upper end of the outer side of the connecting shaft, the bottom of the upper driving bevel gear is meshed with the upper driven bevel gear, and the middle of the upper driven bevel gear is connected to a toggle piece.

[0018] Preferably, the toggle member includes a linkage shaft penetrating through the transmission box and connected to the middle of the driven bevel gear, a support frame connected to the outside of the linkage shaft, a scraping plate arranged between the support frames, and a toggle piece arranged on the outside of the scraping plate.

[0019] Preferably, a connecting shaft is provided at the lower end of the toggle plate, and a strip groove is provided at the upper end of the toggle plate.

[0020] Beneficial effects of the present invention:

[0021] The plastic transformer shell of the present invention adopts a multi-layer reinforced rib design, combined with a high-strength base material, an impact-resistant layer and a soft honeycomb liner, which significantly improves the mechanical strength and seismic resistance of the shell while maintaining lightweight. The reinforcement layer close to the pin hole enhances the welding support force to ensure stable electrical connection. The exterior adopts epoxy resin or fluorocarbon coating, has excellent corrosion resistance, weather resistance and insulation performance, and can operate stably for a long time in complex environments.

[0022] The present invention is completed by using an auxiliary cleaning device in the cleaning process. Through mechanization and multi-axis linkage design, the reciprocating motion of the placement frame in the cleaning liquid is realized, the stacking of the shell is avoided and the cleaning uniformity is ensured; the swing of the toggle plate further enhances the fluidity of the cleaning liquid, effectively shortens the cleaning time and improves efficiency. At the same time, the sweeping mechanism cooperates with the scraping plate design to realize automatic cleaning of the inner side of the box body, avoid the adhesion of impurities, and concentrate the impurities at the bottom of the box body for easy cleaning, which greatly reduces the frequency of manual maintenance. The overall process has the characteristics of high efficiency, uniformity, automatic cleaning and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the reinforcement rib structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the auxiliary cleaning device of the present invention;

[0026] Figure 4 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the rack connection structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the sweeping mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the transmission box of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the toggle member of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the toggle plate of the present invention.

[0032] Wherein: shell-a, anti-corrosion coating-b, pin-c, reinforcement rib-d, auxiliary cleaning device-e, impact-resistant layer-d1, buffer layer-d2, reinforcement strip-d3, box-1, drive motor-2, transmission mechanism-3, sweeping mechanism-4, placement frame-5, fixing frame-6, guide column-7, guide groove-8, toggle plate-9, bottom plate-31, support-32, driving gear-33, driven gear-34, first toggle wheel-35, second toggle wheel-36, follower gear-37, Contact gear-38, rack-39, skateboard-310, bracket-311, driving wheel-41, synchronous belt-42, driven wheel-43, transmission box-44, toggle piece-45, driving shaft-441, lower driving bevel gear-442, lower driven bevel gear-443, connecting shaft-444, upper driving bevel gear-445, upper driven bevel gear-446, linkage shaft-451, supporting frame-452, scraping plate-453, toggle piece-454, connecting shaft-91, strip groove-92. DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0034] See also Figure 1 and Figure 2 The present invention provides a network transformer housing, comprising a housing a, the outer surface of the housing a is coated with an anti-corrosion coating b, the anti-corrosion coating b is an epoxy resin coating, which ensures that the housing has excellent corrosion resistance, a pin c is embedded and fixed at the bottom of the housing a, and a reinforcing rib d is fixed on the inner side of the housing a;

[0035] The reinforcement rib d includes an impact-resistant layer d1, which is made of high-toughness modified polycarbonate, and a buffer layer d2 is bonded to the outside of the impact-resistant layer d. A thermoplastic polyurethane honeycomb structure is selected, which has good buffering effect and maintains a lightweight design at the same time. After the two groups are combined, they perform excellently in shock absorption and lightweight. A reinforcement strip d3 is fixed on the top of the impact-resistant layer d1. The reinforcement strip d3 and the impact-resistant layer d1 are made of the same material and are of hard design, providing reliable support for the pins. The reinforcement strip d3 is close to the pin c.

[0036] A method for manufacturing a network transformer housing, the specific steps are as follows: S1: material preparation, the housing a material is glass fiber reinforced polycarbonate, the reinforcement rib d material is prepared, the impact-resistant layer d1 and the reinforcement strip d3 are made of high-toughness modified polycarbonate, the buffer layer d2 is made of thermoplastic polyurethane honeycomb structure, and the anti-corrosion coating b is made of epoxy resin coating; S2: housing a molding, designing an injection mold, the mold needs to use an embedded multi-cavity mold, and molding different material layers in steps, the buffer layer d2 reserves space, and designs partial hollowing to facilitate subsequent filling of the buffer layer d2; S3: injection molding process, the glass fiber reinforced polycarbonate is dried at 110°C for 4 hours to ensure low moisture content and prevent molding defects , Injection molding shell base layer: Use double-cavity injection molding technology to mold the outer contour of the shell in one go, embed reinforcement ribs d, and use double-material injection molding process to inject high-toughness modified polycarbonate inside the shell a and near the pin position to form an impact-resistant layer d1. Use flow channel balance optimization design to prevent uneven material distribution. Inject thermoplastic polyurethane material into the reserved space of the ribs, and form a soft honeycomb structure through a micro-foaming process; S4: Post-processing process, deburring and polishing, and then place it in the auxiliary cleaning device e for cleaning to remove surface residues and improve coating adhesion. After treatment, start external coating spraying, select epoxy resin coating, and then start oven curing; S5: Quality inspection, size inspection, strength test, impact test, seismic test and electrical performance test, impact test, impact strength ≥50 kJ / m², 3D scanning, ±0.05mm, insulation resistance test, ≥10 6 MΩ, high temperature aging, 80°C / 168h, salt spray test, no corrosion after 48h.

[0037] See also Figure 3 The auxiliary cleaning device e includes a box body 1 for carrying cleaning liquid, a driving motor 2 is installed at the lower right end of the front end face of the box body 1, a transmission mechanism 3 is arranged at the lower end inside the box body 1, and a group of sweeping mechanisms 4 are respectively connected to the two ends of the front end face of the transmission mechanism 3, and the outer side of the sweeping mechanism 4 is fixed to the inner side of the box body 1, and a placement frame 5 for placing workpieces to be cleaned is arranged at the upper end inside the box body 1, and a fixing frame 6 is fixed at the lower end of the outer side of the placement frame 5, and two groups of guide columns 7 are respectively fixed at the front and rear ends of the fixing frame 6, and a guide groove 8 is opened at the upper end of the inner side of the box body 1 corresponding to the guide column 7, and the guide column 7 is movably embedded in the guide groove 8, and the bottom of the fixing frame 6 is connected to the transmission mechanism 3, and the left front end of the transmission mechanism 3 is connected to the output shaft of the driving motor 2, and the back of the transmission mechanism 3 is connected to the toggle plate 9, and the back of the toggle plate 9 is connected to the rear end of the box body 1.

[0038] See also Figure 4 and Figure 5The transmission mechanism 3 includes a bottom plate 31 fixed to the bottom of the box body 1, a support 32 is welded and fixed to the top front end of the bottom plate 31, a driving gear 33 is arranged at the right front end inside the support 32, the middle part of the driving gear 33 is connected to the output shaft of the driving motor 2 through a shaft rod, and is connected to the sweeping mechanism 4 at the right end, the left front end inside the support 32 is connected to the driven gear 34 through another set of shaft rods, the right side of the driven gear 34 is meshed with the driving gear 33, and the middle part of the driven gear 34 is connected to the sweeping mechanism 4 at the left end through the shaft rod, the rear end of the right end shaft rod is provided with a first toggle wheel 35, and the rear end of the left end shaft rod is provided with a first toggle wheel 35. A second toggle wheel 36 is provided, and convex teeth with half the circumference are provided on the outer sides of the first toggle wheel 35 and the second toggle wheel 36, and the tops of both are meshed with the follower gear 37. The middle part of the follower gear 37 is connected to the upper ends of the two groups of supports 32 through a third group of shafts. The back side of the shaft passes through the support 32 to connect to the contact gear 38. The top of the contact gear 38 is meshed with the rack 39. A slide plate 310 is fixed to the top of the rack 39. The bottom of the slide plate 310 is movably matched with the bracket 311. The bottom of the bracket 311 is welded to the rear end of the top of the bottom plate 31, and the top of the slide plate 310 is connected to the fixed frame 6.

[0039] See also Figure 6-Figure 8 The sweeping mechanism 4 includes a driving wheel 41 connected to two sets of shafts at the lower ends of the support members 32 respectively, the outer side of the driving wheel 41 is connected to the driven wheel 43 through a synchronous belt 42, the middle part of the driven wheel 43 is connected to a transmission box 44, the transmission box 44 is fixed to the inner side of the box body 1, a toggle member 45 is arranged on the inner side of the transmission box 44, a driving shaft 441 connected to the driving wheel 41 is arranged on the lower end of the transmission box 44, a lower driving bevel gear 442 is arranged on the outer side of the driving shaft 441, the top of the lower driving bevel gear 442 is meshed with the lower driven bevel gear 443, the middle part of the lower driven bevel gear 443 is connected to a connecting shaft 444, an upper driving bevel gear 445 is arranged on the upper end of the outer side of the connecting shaft 444, the bottom of the upper driving bevel gear 445 is meshed with the upper driven bevel gear 446, and the middle part of the upper driven bevel gear 446 is connected to the toggle member 45;

[0040] The toggle member 45 includes a linkage shaft 451, one end of which passes through the interior of the transmission box 44 and is connected to the middle of the driven bevel gear 446. A support frame 452 is provided on the outside of the linkage shaft 451, and a scraping plate 453 is provided between the support frames 452. The inner side of the scraping plate 453 fits the surface of the transmission box 44, and a toggle piece 454 is fixed on the outside of the support frame 452. The toggle piece 454 facilitates the toggle of the cleaning liquid and effectively increases the flow rate.

[0041] See also Fig. 9 A connecting shaft 91 is provided at the lower end of the toggle plate 9, the front end of the connecting shaft 91 is connected to the middle of the contact gear 38, the back of the connecting shaft 91 is connected to the box body 1, and a strip groove 92 is opened at the upper end of the toggle plate 9.

[0042] The specific implementation process is as follows:

[0043] When the shell needs to be cleaned, the shells are poured into the placement frame 5 in batches, and then the cleaning liquid is poured into the box body 1, and then the driving motor 2 can be started to work, and the driving motor 2 drives the shaft rod at the right end to rotate. During the rotation of the shaft rod, the driving gear 33 can be driven to rotate, and during the rotation of the driving gear 33, the driven gear 34 can be driven to rotate. The shaft rods connected in the middle of the two sets of gears rotate in opposite directions, and during the rotation, the first and second toggle wheels 35 and 36 can be driven to rotate respectively, and the follower gear 37 is driven in turn, and the follower gear 37 can be driven to reciprocate, so that the contact gear 38 is driven to follow the rotation through the shaft rod at the upper end, and the rack 39 can be driven during the rotation, and finally the slide plate 310 can be moved back and forth on the bracket 311, and the fixed frame 6 connected at the top can drive the placement frame 5 to reciprocate in the cleaning liquid to prevent the shells inside the placement frame 5 from stacking, thereby improving the cleaning efficiency;

[0044] During the rotation of the contact gear 38, the toggle plate 9 connected to the back can follow its movement, and the toggle plate 9 can swing back and forth inside the box body 1. During the swinging process, the flow speed of the cleaning liquid can be increased, and the overall cleaning efficiency can be effectively improved;

[0045] During the rotation of the two sets of shafts at the lower end, the two sets of sweeping mechanisms 4 can be synchronously driven to move, the driving wheel 41 inside the sweeping mechanism 4 starts to rotate, and the driving wheel 41 drives the driven wheel 43 to rotate synchronously through the synchronous belt 42, and the driven wheel 43 can drive the middle driving shaft 441 to rotate, and the driving shaft 441 drives the lower driving bevel gear 442 to make the lower driven bevel gear 443 rotate, and the connecting shaft 444 in the middle of the lower driven bevel gear 443 rotates accordingly, so that the upper driving bevel gear 445 connected at the upper end rotates, and the upper driving bevel gear 445 can drive the upper driven bevel gear 446 to make the linkage shaft 451 rotate, and during the rotation of the linkage shaft 451, the support frame 452 and the sweeping plate 453 start to rotate, and the paddle piece 454 on the inner side of the sweeping plate 453 moves accordingly, and the cleaning liquid can also be paddled during the movement, and the sweeping plate 453 contacts the surface of the transmission box 44 to scrape and sweep the impurities on its surface, so that they fall into the bottom of the box body 1 to avoid the adhesion of impurities, and fall into the bottom uniformly for easy cleaning;

[0046] After cleaning is completed, the shell is taken out from the placement frame 5 and enters the next step for further processing.

[0047] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for manufacturing a network transformer housing, characterized in that: The specific steps are as follows: S1: Material preparation. The shell (a) is made of glass fiber reinforced polycarbonate. The reinforcement rib (d) includes an impact-resistant layer (d1), a buffer layer (d2) arranged outside the impact-resistant layer (d1), and a reinforcement strip (d3) installed on the top of the impact-resistant layer (d1). The impact-resistant layer (d1) and the reinforcement strip (d3) are made of high-toughness modified polycarbonate. The buffer layer (d2) is made of a thermoplastic polyurethane honeycomb structure. The anti-corrosion coating (b) is made of epoxy resin coating. S2: Molding of the shell (a), design of the injection mold, the mold needs to use an embedded multi-cavity mold, and mold different material layers in steps. Space is reserved for the buffer layer (d2), and local hollowing is designed to facilitate subsequent filling of the buffer layer (d2); S3: Injection molding process, drying the glass fiber reinforced polycarbonate to ensure low moisture content and prevent molding defects, injection molding the shell base layer: using double-cavity injection molding technology, the outer contour of the shell is molded in one step, and the reinforcement ribs (d) are embedded. Using the double-material injection molding process, high-toughness modified polycarbonate is injected into the shell (a) and near the pin position to form an impact-resistant layer (d1). The flow channel balance optimization design is adopted to prevent uneven material distribution. Thermoplastic polyurethane material is injected into the reserved space of the ribs, and a soft honeycomb structure is formed through a micro-foaming process; S4: post-treatment process, deburring and polishing, and then placing it in the auxiliary cleaning device (e) for cleaning to remove surface residues and improve coating adhesion. After treatment, external coating spraying is started, and epoxy resin coating is selected, and then oven curing is started; S5: Quality inspection, size inspection, strength test, impact test, seismic test and electrical performance test.

2. The method for manufacturing a network transformer housing according to claim 1, characterized in that: The auxiliary cleaning device (e) comprises a box body (1), a driving motor (2) arranged at the right end of the front end surface of the box body (1), a transmission mechanism (3) arranged at the lower end of the box body (1) and connected to the driving motor (2), a sweeping mechanism (4) arranged at the left and right ends of the front end surface of the transmission mechanism (3), a placement frame (5) arranged at the upper part of the box body (1), a fixing frame (6) connecting the front and rear positions of the placement frame (5), a guide column (7) arranged at the front and rear ends of the fixing frame (6), a guide groove (8) opened at the upper end of the box body (1) and movably embedded by the guide column (7), and a toggle plate (9) arranged at the rear end of the transmission mechanism (3), wherein the top of the transmission mechanism (3) is connected to the fixing frame (6).

3. The method for manufacturing a network transformer housing according to claim 2, characterized in that: The transmission mechanism (3) comprises a bottom plate (31) arranged at the lower end of the box body (1), support members (32) arranged at the front and rear ends of the top of the bottom plate (31), a driving gear (33) arranged at the right front end of the two sets of support members (32), a driven gear (34) meshing with the left side of the driving gear (33), a first toggle wheel (35) arranged at the back of the driving gear (33), a second toggle wheel (36) arranged at the back of the driven gear (34), and two toggle wheels (35) and a second toggle wheel (36) meshing with the first toggle wheel (35) and the second toggle wheel (36). A meshing follower gear (37), a contact gear (38) disposed on the back of the rear end support (32), a rack (39) meshing with the top of the contact gear (38), a slide plate (310) disposed on the top of the rack (39), and a bracket (311) movably embedded in the slide plate (310) and having its bottom fixed to the top of the bottom plate (31), wherein the top of the slide plate (310) is connected to the fixing frame (6), and the outer sides of the first toggle wheel (35) and the second toggle wheel (36) are both provided with convex teeth having half the circumference.

4. The method for manufacturing a network transformer housing according to claim 3, characterized in that: Three groups of shafts are arranged in the two groups of support members (32), the right end shafts are respectively connected to the driving gear (33) and the first toggle wheel (35), and the front ends of the right end shafts are respectively connected to the output shaft of the driving motor (2) and the right end sweeping mechanism (4), the left end shafts are respectively connected to the driven gear (34) and the second toggle wheel (36), the front ends of the left end shafts are connected to the left end sweeping mechanism (4), and the upper end shafts are respectively connected to the follower gear (37) and the contact gear (38).

5. The method for manufacturing a network transformer housing according to claim 4, characterized in that: The sweeping mechanism (4) comprises a driving wheel (41) respectively connected to two sets of shafts at the lower ends of the support (32), a synchronous belt (42) arranged outside the driving wheel (41), a driven wheel (43) connected to the outer end of the synchronous belt (42), a transmission box (44) connected to the driven wheel (43) and arranged inside the box body (1), and a shifting member (45) arranged inside the transmission box (44).

6. The method for manufacturing a network transformer housing according to claim 5, characterized in that: A driving shaft (441) connected to the driving wheel (41) is arranged at the lower end of the transmission box (44), a lower driving bevel gear (442) is arranged on the outer side of the driving shaft (441), the top of the lower driving bevel gear (442) is meshed with the lower driven bevel gear (443), the middle of the lower driven bevel gear (443) is connected to the connecting shaft (444), an upper driving bevel gear (445) is arranged on the upper end of the outer side of the connecting shaft (444), the bottom of the upper driving bevel gear (445) is meshed with the upper driven bevel gear (446), and the middle of the upper driven bevel gear (446) is connected to the shifting member (45).

7. The method for manufacturing a network transformer housing according to claim 6, characterized in that: The toggle member (45) comprises a linkage shaft (451) penetrating the transmission case (44) and connected to the middle of the driven bevel gear (446), a support frame (452) connected to the outside of the linkage shaft (451), a scraping plate (453) disposed between the support frames (452), and a toggle plate (454) disposed on the outside of the scraping plate (453).

8. The method for manufacturing a network transformer housing according to claim 2, characterized in that: A connecting shaft (91) is provided at the lower end of the toggle plate (9), and a strip-shaped groove (92) is provided at the upper end of the toggle plate (9).

9. A network transformer housing manufactured by the method for manufacturing a network transformer housing according to claim 1, characterized in that: The invention comprises a shell (a), wherein the outer surface of the shell (a) is coated with an anti-corrosion coating (b), a pin (c) is fixed to the bottom of the shell (a), and a reinforcing rib (d) is arranged on the inner side of the shell (a); the reinforcing bar (d3) is close to the pin (c) and is used to support and protect the bottom of the pin (c).

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