Stainless steel combined hanging cabinet

By using a snap-fit ​​connection method between the hanging brackets and the hangers, and employing an aluminum honeycomb panel structure, the stability and installation accuracy issues of the wall cabinets are resolved, enabling efficient and reliable installation as well as easy disassembly and maintenance.

CN224344542UActive Publication Date: 2026-06-12ZHEJIANG SENG SMART KITCHEN APPLIANCE CO LTD
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Patent Information

Application Number
CN202521198702.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2026-06-12
Estimated Expiration
2035-06-11

AI Technical Summary

Technical Problem

Existing wall cabinet installation methods suffer from insufficient structural stability, high installation precision requirements, and difficulties in disassembly and maintenance. In particular, the use of expansion bolts for fixing can easily lead to cabinet tilting and loosening, and non-professionals are prone to horizontal deviations during installation.

Method used

The cabinet uses a buckle connection method with hanging brackets and wall mounts. The hanging brackets are fixed to the back of the cabinet with fasteners. The aluminum honeycomb panel enhances the structural strength, and the position of the hooks and wall mounts can be adjusted by adjusting the adjustment mechanism to achieve a stable connection between the cabinet and the wall.

Benefits of technology

It improves the installation stability and fault tolerance of the wall cabinet, avoids bolt loosening, enhances installation efficiency and reliability, and simplifies the disassembly and maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224344542U_ABST
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Abstract

The utility model discloses a stainless steel combined hanging cabinet, including cabinet, fixing piece and pendant, and the pendant is fixedly connected at the back of the cabinet's left and right two ends through the fixing piece, and the pendant is buckled with the hanger of wall body, and the cabinet is equipped with the storage cavity of front side opening, and the storage cavity is equipped with the glass layer board, and the glass layer board is fixedly connected in the storage cavity through the connecting piece, and the glass layer board divides the storage cavity and forms the upper cavity and lower cavity, the utility model discloses a fixing piece and pendant are set up at the back of hanging cabinet, and the pendant is fixedly installed at the back of the cabinet's two ends through the fixing piece, and the cabinet is connected with the buckle of the hanger between the wall body through the pendant, compared with the fixed mode of expansion bolt, improves the installation stability, avoids the problem such as bolt loosening, and, the pendant has adjustable effect, and the installation fault tolerance is high, can adjust the hanger of wall body, and the installation efficiency and reliability are improved significantly.
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Description

Technical Field

[0001] This utility model belongs to the technical field of wall cabinet equipment, specifically relating to a stainless steel combination wall cabinet. Background Technology

[0002] Wall cabinets are suspended storage spaces installed on the upper part of a house, mainly used for storage needs in areas such as kitchens and entryways. By utilizing vertical wall space, they alleviate the pressure on floor storage, making them suitable for small apartments to improve space utilization. They can also cover exposed facilities such as exhaust pipes and ducts, maintaining a visually tidy appearance.

[0003] Currently, wall-mounted cabinets on the market are typically installed by directly fixing them to the wall using expansion bolts. However, this installation method has the following technical drawbacks:

[0004] 1) Insufficient structural stability: Relying solely on bolts for load-bearing can easily lead to uneven stress on the cabinet, and after long-term use, problems such as cabinet tilting and loose bolts may occur, posing safety hazards.

[0005] 2) High installation accuracy requirements: Precise positioning and drilling are required in the wall, resulting in a low error tolerance rate. Non-professionals are prone to cabinet level deviations during installation.

[0006] 3) Difficult to disassemble and maintain: The cabinet is rigidly connected to the wall, and the whole unit needs to be dismantled when inspecting pipelines or adjusting its position, which damages the wall structure. Utility Model Content

[0007] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a stainless steel combination wall cabinet. By setting fixing parts and hanging brackets on the back of the wall cabinet, the hanging brackets are fixedly installed at both ends of the back of the cabinet through the fixing parts. The cabinet is connected to the wall through the buckle between the hanging brackets and the hanging parts. Compared with the fixing method of using expansion bolts, the installation stability is improved and problems such as bolt loosening are avoided. In addition, the hanging brackets are adjustable, with a high installation error tolerance rate. They can be adjusted according to the wall hanging parts, which significantly improves the installation efficiency and reliability.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A stainless steel modular wall cabinet includes a cabinet body, fasteners, and hanging brackets. The hanging brackets are fixedly connected to the left and right ends of the back of the cabinet body via the fasteners. The hanging brackets are snapped together with wall-mounted brackets. The cabinet body has a storage cavity with a front opening. A glass shelf is installed inside the storage cavity and fixedly connected to the storage cavity via connectors. The glass shelf divides the storage cavity into an upper cavity and a lower cavity. This invention improves installation stability and avoids bolt loosening by using fasteners and hanging brackets on the back of the cabinet. Furthermore, the hanging brackets are adjustable, have a high installation tolerance, and can be adjusted to fit wall-mounted brackets, significantly improving installation efficiency and reliability.

[0010] Furthermore, the cabinet includes a bottom frame, side frames, a top frame, and a back frame. The top frame is located above the bottom frame. Side frames are fixedly connected to both sides of the bottom and top frames. The back frame is fixedly connected to the rear of the top and bottom frames. A top panel is installed on the top of the top frame. Side panels are installed on both side frames, and a bottom panel is installed on the bottom of the bottom frame. The bottom frame, top frame, back frame, and two side frames together form the cabinet. The side panels are installed on the side frames on both sides, and the bottom and top panels are fixed to the bottom and top frames respectively, completing the cabinet assembly.

[0011] Furthermore, aluminum honeycomb panels are installed between the side frames and side panels, between the bottom plate and bottom frame, and between the top plate and top frame. The installation of aluminum honeycomb panels increases the structural strength of the cabinet while reducing its weight, making the hanging of the wall cabinet more stable. It also enhances the cabinet's resistance to deformation, and has the effects of blocking heat penetration and improving fire resistance.

[0012] Furthermore, the connector uses a fixing buckle with a snap-fit ​​groove. The snap-fit ​​groove is open at one end near the glass shelf, and the fixing buckle is fixedly connected to the four corners of the glass shelf in the storage cavity. The glass shelf is snapped into the snap-fit ​​groove. The four corners of the glass shelf are snapped into the snap-fit ​​groove of the fixing buckle, thus fixing the glass shelf in the cabinet and dividing the storage cavity into an upper cavity and a lower cavity.

[0013] Furthermore, the fastener adopts a base with mirrored upper and lower ends. The end of the base near the hanger has a connecting part, which is fixedly connected to the back frame. The connecting part has insertion holes corresponding to the hanger. The end of the hanger near the base has several connecting posts, with the insertion holes corresponding to these connecting posts. The other end of the base has a locking part that locks into a slot in the back frame. The mirrored upper and lower ends of the base eliminate the need for left / right distinctions like with the hanger, improving the fastener's adaptability and facilitating hanger installation and fixation. When fixing the base to the cabinet, first lock the locking part into the slot in the back frame, then fix the connecting part to the back of the cabinet. The connecting part has insertion holes; by inserting the connecting posts into these holes, the hanger and the fastener are connected.

[0014] Furthermore, the connecting part has a through hole corresponding to the back frame, and the through hole is offset from the insertion hole. The base is equipped with a fastening screw, which passes through the through hole and is tightened in the back frame. The connecting part is fixed to the cabinet by the through hole, and the fastening screw is screwed into the through hole and tightened on the back frame, thereby fixing the connecting part to the cabinet.

[0015] Furthermore, the clamping part is equipped with a limiting groove, which matches the back frame. A positioning block is located within the limiting groove, and the back frame has a corresponding positioning groove. When the clamping part is inserted into the groove, the positioning block is inserted into the positioning groove. The limiting groove increases the contact area between the clamping part and the back frame, improving the stability of the connection between the fastener and the cabinet. Simultaneously, the positioning groove and positioning block provide a positioning function for the fastener during installation.

[0016] Furthermore, the connecting column adopts a hollow structure, with a through hole along the direction of the through hole. A corresponding connecting hole is located at the top of the connecting part, and the connecting hole communicates with the through hole. When the connecting column is inserted into the insertion hole, the axis of the through hole and the axis of the connecting hole are aligned. A connecting screw is screwed into the connecting hole and through the insertion hole to tighten it onto the cabinet. To fix the hanging bracket to the fastener, first insert the connecting column into the insertion hole, ensuring the axis of the connecting hole and the axis of the through hole are aligned. Then, screw in the connecting screw to fix it onto the cabinet, thus securing the fastener, hanging bracket, and cabinet together.

[0017] Furthermore, the hanging bracket includes a fixed plate and an adjustable plate. The fixed plate is fixedly connected to the back frame, and one end of the adjustable plate is movably connected to the fixed plate via an adjusting component. The other end of the adjustable plate is equipped with a hook for matching wall-mounted brackets. The fixed plate is fixedly connected to the back frame of the cabinet, and the adjusting component is used to adjust the position of the adjustable plate, thereby adjusting the hook to facilitate the hook's snap-fit ​​connection with the wall-mounted brackets.

[0018] Furthermore, the adjusting component includes a fixed base, a threaded rod, a driving bevel gear, and a transmission bevel gear. The fixed bases are fixedly connected to both ends of the top of the fixed plate. The threaded rod is rotatably connected between the two fixed bases. The driving bevel gear is rotatably connected to one end of the top of the fixed plate. The transmission bevel gear is fixedly connected to the end of the threaded rod near the driving bevel gear. The driving bevel gear meshes with the transmission bevel gear. The top of the driving bevel gear has a cross groove. One end of the adjusting plate is threadedly connected to the threaded rod. Through the cross groove, a Phillips screwdriver is used to turn the driving bevel gear, which in turn drives the transmission bevel gear to rotate, thereby causing the threaded rod to rotate. This allows the adjusting plate to adjust the hook along the axial direction of the threaded rod.

[0019] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0020] This utility model improves installation stability and avoids problems such as bolt loosening by setting fixing components and hanging brackets on the back of the wall cabinet. The hanging brackets are fixedly installed at both ends of the back of the cabinet by fixing components. The cabinet is connected to the wall by the buckle between the hanging brackets and the hanging parts. Compared with the fixing method of expansion bolts, this method improves installation stability and avoids problems such as bolt loosening. In addition, the hanging brackets are adjustable, have a high installation error tolerance, and can be adjusted for wall hanging parts, significantly improving installation efficiency and reliability.

[0021] In this invention, the connecting column adopts a hollow structure. The connecting column has a through hole along the direction of the through hole, and the top of the connecting part has a corresponding connecting hole. The connecting hole communicates with the through hole. When the connecting column is inserted into the insertion hole, the axis of the through hole and the axis of the connecting hole are collinear. A connecting screw is screwed into the connecting hole and passes through the insertion hole to tighten it onto the cabinet. To fix the hanging bracket to the fastener, first insert the connecting column into the insertion hole, ensuring the axis of the connecting hole and the axis of the through hole are collinear. Then, screw in the connecting screw to fix it onto the cabinet, thus fixing the fastener, hanging bracket, and cabinet together.

[0022] In this invention, the adjusting component includes a fixed base, a threaded rod, a driving bevel gear, and a transmission bevel gear. The fixed bases are fixedly connected to both ends of the top of a fixed plate. The threaded rod is rotatably connected between the two fixed bases. The driving bevel gear is rotatably connected to one end of the top of the fixed plate. The transmission bevel gear is fixedly connected to the end of the threaded rod near the driving bevel gear. The driving bevel gear meshes with the transmission bevel gear, and the top of the driving bevel gear has a cross groove. By using a Phillips screwdriver to turn the driving bevel gear through the cross groove, the driving bevel gear drives the transmission bevel gear to rotate, thereby causing the threaded rod to rotate. This allows the adjusting plate to adjust the hook along the axial direction of the threaded rod. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1This is a structural schematic diagram of a stainless steel combined hanging cabinet according to the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0026] Figure 3 This is a schematic diagram of the structure of the back of the wall cabinet in this utility model;

[0027] Figure 4 This is a schematic diagram of the back frame structure in this utility model;

[0028] Figure 5 This is a schematic diagram of the connection between the lifting bracket and the fixing component in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the base body in this utility model;

[0030] Figure 7 This is a schematic diagram of the connection between the hanging bracket and the hanger in this utility model.

[0031] In the diagram, 1-cabinet body; 2-fixing component; 3-hanging bracket; 4-hanging component; 5-storage cavity; 6-glass shelf; 7-upper cavity; 8-lower cavity; 9-bottom frame; 10-side frame; 11-top frame; 12-back frame; 13-top plate; 14-side plate; 15-bottom plate; 16-aluminum honeycomb panel; 17-fixing buckle; 18-slot; 19-base; 20-connecting part; 21-insertion hole; 22-connecting column; 23-clamping part; 24-slot; 25-through hole; 26-limiting slot; 27-positioning block; 28-positioning slot; 29-through hole; 30-connecting hole; 31-fixing plate; 32-adjusting plate; 33-hook; 34-fixed base; 35-threaded rod; 36-drive bevel gear; 37-transmission bevel gear; 38-cross groove. Detailed Implementation

[0032] like Figures 1 to 7 As shown, this utility model discloses a stainless steel combination wall cabinet, which includes a cabinet body 1, a fixing component 2, and a hanging bracket 3. The hanging bracket 3 is fixedly connected to the left and right ends of the back of the cabinet body 1 through the fixing component 2. The hanging bracket 3 is snapped to the wall hanging component 4. The cabinet body 1 has a storage cavity 5 with a front opening. A glass shelf 6 is provided in the storage cavity 5. The glass shelf 6 is fixedly connected to the storage cavity 5 through a connector. The glass shelf 6 divides the storage cavity 5 into an upper cavity 7 and a lower cavity 8.

[0033] Cabinet 1 includes a bottom frame 9, side frames 10, a top frame 11, and a back frame 12. The top frame 11 is located above the bottom frame 9. The side frames 10 are fixedly connected to both sides between the bottom frame 9 and the top frame 11. The back frame 12 is fixedly connected to the rear side of the top frame 11 and the bottom frame 9. A top plate 13 is installed on the top of the top frame 11. Side plates 14 are installed on both side frames 10. A bottom plate 15 is installed on the bottom of the bottom frame 9. The bottom frame 9, top frame 11, back frame 12, and two side frames 10 together form cabinet 1. The side plates 14 are installed on the side frames 10 located on both sides. The bottom plate 15 and top plate 13 are fixed to the bottom frame 9 and the top frame 11, respectively, completing the installation of cabinet 1.

[0034] Aluminum honeycomb panels 16 are provided between the side frame 10 and the side panel 14, between the bottom plate 15 and the bottom frame 9, and between the top plate 13 and the top frame 11. The installation of aluminum honeycomb panels 16 increases the structural strength of the cabinet 1 while reducing its weight, making the hanging of the wall cabinet more stable. It also enhances the deformation resistance of the cabinet 1 and has the effects of blocking heat penetration and improving fire resistance.

[0035] The connector uses a fixing buckle 17, which has a snap-fit ​​groove 18. The snap-fit ​​groove 18 is open at one end near the glass shelf 6. The fixing buckle 17 is fixedly connected to the storage cavity 5 at the four corners of the glass shelf 6, and the glass shelf 6 is snapped into the snap-fit ​​groove 18. The four corners of the glass shelf 6 are snapped into the snap-fit ​​groove 18 of the fixing buckle 17, so that the glass shelf 6 is fixed in the cabinet 1 and the storage cavity 5 is divided into an upper cavity 7 and a lower cavity 8.

[0036] The fastener 2 adopts a base 19, with the upper and lower ends of the base 19 mirrored. The end of the base 19 near the hanger 3 is provided with a connecting part 20, which is fixedly connected to the back frame 12. The connecting part 20 has a through insertion hole 21 corresponding to the hanger 3. The end of the hanger 3 near the base 19 is provided with several connecting posts 22, and the insertion hole 21 is provided with the connecting post 22. The other end of the base 19 is provided with a locking part 23, which is locked in the slot 24 of the back frame 12. The mirrored design of the upper and lower ends of the base 19 eliminates the need for left and right distinctions in the fastener 2, unlike the hanging bracket 3, thus improving the adaptability of the fastener 2 and facilitating the installation and fixation of the hanging bracket 3. When fixing the base 19 to the cabinet 1, the clamping part 23 is first clamped into the slot 24 of the back frame 12, and then the connecting part 20 is fixedly installed on the back of the cabinet 1. The connecting part 20 is provided with a plug hole 21. By inserting the connecting post 22 into the plug hole 21, the hanging bracket 3 and the fastener 2 are connected.

[0037] The connecting part 20 has a through hole 25 corresponding to the back frame 12. The through hole 25 is offset from the insertion hole 21. The base 19 is provided with a fastening screw, which passes through the through hole 25 and is tightened in the back frame 12. The connecting part 20 is fixed to the cabinet 1 by providing the through hole 25. After the fastening screw is screwed into the through hole 25, it is tightened on the back frame 12, thereby fixing the connecting part 20 to the cabinet 1.

[0038] The clamping part 23 is provided with a limiting groove 26, which is matched with the back frame 12. A positioning block 27 is provided in the limiting groove 26, and the back frame 12 is provided with a corresponding positioning groove 28. When the clamping part 23 is inserted into the clamping groove 24, the positioning block 27 is inserted into the positioning groove 28. The setting of the limiting groove 26 increases the contact area between the clamping part 23 and the back frame 12, and improves the stability of the connection between the fastener 2 and the cabinet 1. At the same time, the setting of the positioning groove 28 and the positioning block 27 plays a positioning role in the installation of the fastener 2.

[0039] The connecting post 22 has a hollow structure. A through hole 29 is provided along the direction of the through hole 25. A corresponding connecting hole 30 is provided at the top of the connecting part 20. The connecting hole 30 communicates with the through hole 25. When the connecting post 22 is inserted into the insertion hole 21, the axis of the through hole 29 and the axis of the connecting hole 30 are on the same straight line. A connecting screw is screwed into the connecting hole 30 and passes through the insertion hole 21 to tighten it onto the cabinet 1. When fixing the hanging bracket 3 to the fastener 2, first insert the connecting post 22 into the insertion hole 21, ensuring that the axis of the connecting hole 30 and the axis of the through hole 29 are on the same straight line. Then, screw in the connecting screw to fix it onto the cabinet 1, thereby fixing the fastener 2, hanging bracket 3, and cabinet 1 together.

[0040] The hanging bracket 3 includes a fixed plate 31 and an adjusting plate 32. The fixed plate 31 is fixedly connected to the back frame 12. One end of the adjusting plate 32 is movably connected to the fixed plate 31 via an adjusting member. The other end of the adjusting plate 32 is provided with a hook 33, which is used to match the wall-mounted bracket 4. The fixed plate 31 is fixedly connected to the back frame 12 of the cabinet 1. The adjusting member is used to adjust the position of the adjusting plate 32, thereby driving the hook 33 to adjust, so that the hook 33 can be snapped into place with the wall-mounted bracket 4.

[0041] The adjusting component includes a fixed base 34, a threaded rod 35, a driving bevel gear 36, and a transmission bevel gear 37. The fixed base 34 is fixedly connected to both ends of the top of the fixed plate 31. The threaded rod 35 is rotatably connected between the two fixed bases 34. The driving bevel gear 36 is rotatably connected to one end of the top of the fixed plate 31. The transmission bevel gear 37 is fixedly connected to the end of the threaded rod 35 near the driving bevel gear 36. The driving bevel gear 36 and the transmission bevel gear 37 mesh. The top of the driving bevel gear 36 is provided with a cross groove 38. One end of the adjusting plate 32 is threadedly connected to the threaded rod 35. By turning the driving bevel gear 36 through the cross groove 38 with a Phillips screwdriver, the driving bevel gear 36 drives the transmission bevel gear 37 to rotate, thereby causing the threaded rod 35 to rotate. This allows the adjusting plate 32 to drive the hook 33 to adjust along the axial direction of the threaded rod 35.

[0042] This utility model provides a fixing component 2 and a hanging bracket 3 on the back of the wall cabinet. The hanging bracket 3 is fixedly installed at both ends of the back of the cabinet body 1 by the fixing component 2. The cabinet body 1 is connected to the wall by the buckle between the hanging bracket 3 and the hanging component 4. Compared with the fixing method of expansion bolts, this method improves the installation stability and avoids problems such as loose bolts. In addition, the hanging bracket 3 is adjustable, has a high installation error tolerance, and can be adjusted for the hanging component 4 on the wall, which significantly improves the installation efficiency and reliability.

[0043] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A stainless steel modular wall cabinet, characterized in that: The cabinet includes a cabinet body, fasteners, and hanging brackets. The hanging brackets are fixedly connected to the left and right ends of the back of the cabinet body through the fasteners. The hanging brackets are connected to the wall hanging brackets with snap fasteners. The cabinet body has a storage cavity with a front opening. The storage cavity has a glass shelf. The glass shelf is fixedly connected to the storage cavity through connectors. The glass shelf divides the storage cavity into an upper cavity and a lower cavity.

2. A stainless steel modular wall cabinet according to claim 1, characterized in that: The cabinet includes a bottom frame, side frames, a top frame, and a back frame. The top frame is located above the bottom frame. The side frames are fixedly connected to both sides of the bottom frame and the top frame. The back frame is fixedly connected to the rear side of the top frame and the bottom frame. A top plate is installed on the top of the top frame. Side plates are installed on both side frames. A bottom plate is installed on the bottom of the bottom frame.

3. A stainless steel modular wall cabinet according to claim 1, characterized in that: Aluminum honeycomb panels are provided between the side frame and the side plate, between the bottom plate and the bottom frame, and between the top plate and the top frame.

4. A stainless steel modular wall cabinet according to claim 2, characterized in that: The connector uses a fixing buckle with a snap-fit ​​groove. The snap-fit ​​groove is open at one end near the glass layer. The fixing buckle is fixedly connected to the storage cavity at the four corners of the glass layer, and the glass layer is snapped into the snap-fit ​​groove.

5. A stainless steel modular wall cabinet according to claim 2, characterized in that: The fastener is a base with its upper and lower ends mirror-shaped. The end of the base near the hanger is provided with a connecting part, which is fixedly connected to the back frame. The connecting part has a through-hole corresponding to the hanger. The end of the hanger near the base is provided with several connecting posts, and the through-hole is provided with the connecting posts. The other end of the base is provided with a locking part, which is locked into the slot of the back frame.

6. A stainless steel modular wall cabinet according to claim 5, characterized in that: The connecting part has a through hole corresponding to the back frame. The through hole is offset from the insertion hole. The base is provided with a fastening screw, which passes through the through hole and is tightened in the back frame.

7. A stainless steel modular wall cabinet according to claim 5, characterized in that: The clamping part is provided with a limiting groove, which is matched with the back frame. A positioning block is provided in the limiting groove, and the back frame is provided with a corresponding positioning groove. When the clamping part is inserted into the clamping groove, the positioning block is inserted into the positioning groove.

8. A stainless steel modular wall cabinet according to claim 6, characterized in that: The connecting column has a hollow structure and a through hole along the direction of the through hole. The top of the connecting part has a corresponding connecting hole. The connecting hole is connected to the through hole. When the connecting column is inserted into the insertion hole, the axis of the through hole and the axis of the connecting hole are on the same straight line. A connecting screw is screwed into the connecting hole and passes through the insertion hole to be tightened onto the cabinet.

9. A stainless steel modular wall cabinet according to claim 2, characterized in that: The hanging bracket includes a fixed plate and an adjusting plate. The fixed plate is fixedly connected to the back frame. One end of the adjusting plate is movably connected to the fixed plate through an adjusting member. The other end of the adjusting plate is provided with a hook for matching wall hanging components.

10. A stainless steel modular wall cabinet according to claim 9, characterized in that: The adjusting component includes a fixed base, a threaded rod, a driving bevel gear, and a transmission bevel gear. The fixed base is fixedly connected to the connecting end of the top of the fixed plate. The threaded rod is rotatably connected between the two fixed bases. The driving bevel gear is rotatably connected to one end of the top of the fixed plate. The transmission bevel gear is fixedly connected to one end of the threaded rod near the driving bevel gear. The driving bevel gear meshes with the transmission bevel gear. The top of the driving bevel gear is provided with a cross groove. One end of the adjusting plate is threadedly connected to the threaded rod.