A polishing device for aluminum alloy railing surfaces
The aluminum alloy railing surface polishing device, which uses a screw, bevel gear, and push plate structure, solves the problems of unstable fixing and labor-intensive work, achieving stable internal support and efficient filling, thus improving usage efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI ZHONGDAWANG CURTAIN WALL DOORS & WINDOWS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
AI Technical Summary
The existing fixing mechanism of the aluminum alloy railing surface polishing device is unstable due to the internal support of elastic force, requiring manual compression of the damping blocks for installation, which is time-consuming and labor-intensive, reducing the efficiency of use.
It adopts a screw, bevel gear and push plate structure. The handle drives the connecting rod to rotate, which drives the push plate and positioning plate to move. With the help of elastic elements and support blocks, it can achieve stable internal support fixation and simplify the railing filling process.
This achieved stable internal bracing and fixing of the railings, simplified the filling process, reduced labor intensity, and improved the efficiency of the polishing device.
Smart Images

Figure CN224274627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aluminum alloy railing processing equipment, specifically to an aluminum alloy railing surface polishing device. Background Technology
[0002] Aluminum alloy railings are widely used in construction, landscaping, and transportation due to their excellent corrosion resistance, light weight, aesthetic appearance, and high strength. Different locations have varying requirements for the shape and appearance of aluminum alloy railings. Non-circular cross-section aluminum alloy railings, such as rectangular and rhomboid shapes, can meet specific design needs and aesthetic standards. With the acceleration of urbanization and the continuous improvement of people's demands for the quality of their living environment, the demand for aluminum alloy railings continues to grow, while also placing higher demands on their surface quality and production efficiency. Surface polishing is a crucial step in the production process of aluminum alloy railings, requiring the use of polishing equipment.
[0003] The current announcement number: CN119141402A discloses a surface treatment device for the production of aluminum alloy railings, which includes an operating table. A polishing component is provided on the top of the operating table. The polishing component includes a mounting box installed on one side of the operating table. A pair of symmetrically arranged limiting seats are slidably connected to the top of the operating table. The two limiting seats are rotatably connected to a fixing mechanism on their adjacent sides. In this surface treatment device for the production of aluminum alloy railings, the positioning adjustment mechanism can automatically adjust the distance between the polishing disc and the top of the railing according to the height of the top of the railing. After the polishing disc finishes polishing one surface of the aluminum alloy railing, the stepper motor drives the positioning wheel to rotate at a certain angle. This ensures that the polishing degree of the railing remains consistent regardless of whether the flat surface or the rounded corners are facing upwards. Furthermore, the angle at which the railing is flipped is determined by the rotation angle of the positioning wheel. However, in actual use, it was found that the internal fixing mechanism relies solely on the elastic force of springs to internally support and fix the railing. This results in an unstable overall internal support structure. Moreover, this method requires manual compression of the four internal damping blocks before they are inserted into the railing's internal space, which is inconvenient for overall railing loading, time-consuming, labor-intensive, and reduces the efficiency of the polishing device. Therefore, we propose an aluminum alloy railing surface polishing device. Utility Model Content
[0004] The purpose of this utility model is to provide an aluminum alloy railing surface polishing device to solve the problems mentioned in the background art. In the actual use of this device, it was found that the fixing mechanism inside the device only uses the elastic force of the spring to internally support and fix the railing, resulting in an unstable overall internal support structure. Furthermore, this method requires the operator to manually compress the four damping blocks inside before filling them into the internal space of the railing. This is inconvenient for the overall filling and loading of the railing, time-consuming and labor-intensive, increases the labor intensity of the operator, reduces the efficiency of the polishing device, and is inconvenient to use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum alloy railing surface polishing device, comprising a housing, a support plate, and a second housing. The support plate is located on the left side of the housing, and the second housing is fixedly connected to the left side of the support plate. A baffle is fixedly connected to the right side of the bottom of the inner cavity of the housing. A lead screw is rotatably connected to the middle of the right side wall of the inner cavity of the housing, and the lead screw passes through the middle of the upper side of the right side wall of the baffle and is rotatably connected to the middle of the left side wall of the inner cavity of the housing. A first bevel gear is sleeved on the right side of the outer side wall of the lead screw, and a push plate is threadedly connected to the outer side wall of the lead screw. A connecting plate is fixedly connected to the right side wall of the housing. A passage hole is opened in the middle of the right side wall of the support plate, and a first housing is fixedly connected to the right side wall of the support plate. Mounting holes are provided at the top and bottom center of the left side wall of the housing, and an extension rod is slidably connected to the inner cavity of the mounting holes. A limiting plate is fixedly connected to the bottom end of the upper extension rod and the top end of the lower extension rod. An elastic element is fixedly connected to the top of the upper limiting plate and the bottom of the lower limiting plate, and the elastic element is sleeved on the outer wall of the extension rod. The elastic element is fixedly connected to the top center and the bottom center of the inner cavity of the second housing. A connecting block is fixedly connected to the bottom center of the upper limiting plate and the top center of the lower limiting plate. A support block is rotatably connected to the inner wall of the connecting block. A movable shell is fixedly connected to the bottom of the upper support block and the top of the lower support block. An inner support plate is fixedly connected to the top end of the upper extension rod and the bottom end of the lower extension rod.
[0006] As a further description of the above technical solution:
[0007] Push rods are fixedly connected to the upper and lower sides of the left side wall of the push plate, and the push rods penetrate the left side wall of the inner cavity of the housing and extend into the inner cavity of the first housing.
[0008] As a further description of the above technical solution:
[0009] A positioning plate is fixedly connected between the left ends of the push rod, and a cone is fixedly connected to the middle of the left side wall of the positioning plate.
[0010] As a further description of the above technical solution:
[0011] A fixed base is fixedly connected to the middle of the top right side of the housing. A connecting rod is rotatably connected to the inner cavity of the fixed base, and the connecting rod passes through the middle of the top right side of the housing and extends into the inner cavity of the housing.
[0012] As a further description of the above technical solution:
[0013] A handle is fixedly connected to the top of the connecting rod, and the outer side wall of the handle is provided with anti-slip texture.
[0014] As a further description of the above technical solution:
[0015] The bottom end of the connecting rod is fixedly connected to a second bevel gear, and the second bevel gear meshes with the first bevel gear.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This aluminum alloy railing surface polishing device uses a handle to rotate a connecting rod, which in turn drives a second bevel gear in conjunction with a first bevel gear to rotate a lead screw. This, in turn, drives a push plate in conjunction with a push rod to move a positioning plate and a cone from right to left. Simultaneously, the cone presses against a movable shell, causing the movable shell, in conjunction with a support block and a connecting block, to move two extension rods upward and downward respectively. This, in turn, drives an inner support plate to fix the inner wall of the railing, ensuring the stability of the overall inner support structure. This makes the polishing device easy to load and fill with materials for the entire railing, saving time and labor, reducing the labor intensity of workers, improving the efficiency of the polishing device, and making it easy to use.
[0018] 2. The aluminum alloy railing surface polishing device, through the smooth gradient of the cone, can drive the extension rod to extend infinitely by means of the rotating movable shell of the support block and connecting block. This allows the device to provide internal support for spaces of different sizes inside the railing, making it easy to fix the polishing device to railings of different sizes inside and making it convenient to use. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of an aluminum alloy railing surface polishing device proposed in this utility model;
[0020] Figure 2 This is a three-dimensional sectional view of the housing of an aluminum alloy railing surface polishing device proposed in this utility model;
[0021] Figure 3 This is a three-dimensional sectional view of the second shell of the aluminum alloy railing surface polishing device proposed in this utility model;
[0022] Figure 4This is a three-dimensional sectional view of the support plate of the aluminum alloy railing surface polishing device proposed in this utility model.
[0023] Figure 5 This is a three-dimensional sectional view of the fixing seat of an aluminum alloy railing surface polishing device proposed in this utility model.
[0024] In the diagram: 100, housing; 110, baffle; 120, lead screw; 130, first bevel gear; 140, push plate; 150, push rod; 160, positioning plate; 170, cone; 180, fixed seat; 181, connecting rod; 182, handle; 183, second bevel gear; 190, connecting plate; 200, support plate; 210, passage hole; 220, first housing; 300, second housing; 310, mounting hole; 320, extension rod; 330, limiting plate; 340, elastic element; 350, connecting block; 360, support block; 370, movable housing; 380, inner support plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] This utility model provides a surface polishing device for aluminum alloy railings. The overall internal support structure is stable, facilitating the overall filling and loading of the railing. It also allows for easy internal support adjustments based on the internal size of the railing and convenient fixing of railings with different internal dimensions. Please refer to [link / reference]. Figure 1-5 It includes a shell 100, a support plate 200, and a second shell 300;
[0029] Please refer to it again. Figure 1-5 A baffle 110 is fixedly connected to the bottom right side of the inner cavity of the housing 100. The baffle 110 is used to restrict the movement of the push plate 140. A lead screw 120 is rotatably connected to the middle of the right side wall of the inner cavity of the housing 100. The lead screw 120 passes through the middle of the upper side of the right side wall of the baffle 110 and is rotatably connected to the middle of the left side wall of the inner cavity of the housing 100. The lead screw 120 is used to rotate and drive the push plate 140 to move the push rod 150 left and right. A first bevel gear 130 is sleeved on the right side of the outer side wall of the lead screw 120. The first bevel gear 130 is used to drive the lead screw 120 to rotate under force. The push plate 140 is threadedly connected to the outer side wall of the lead screw 120. A connecting plate 190 is fixedly connected to the right side wall of the housing 100. The connecting plate 190 is used to establish a connection with external equipment. The housing 100 is used to support the support plate 200 and the second housing 300.
[0030] Please refer to it again. Figure 1-5 The support plate 200 has a passage hole 210 in the middle of the right side wall. The passage hole 210 facilitates the entry and exit of the cone 170 into the second shell 300. The support plate 200 is fixedly connected to the right side wall and the first shell 220 is fixedly connected to the left side wall of the shell 100. The first shell 220 provides space for storing the cone 170. The support plate 200 is located on the left side of the shell 100 and is used to support the second shell 300.
[0031] Please refer to it again. Figure 1-5The second housing 300 has mounting holes 310 at the top and bottom center, providing space for the extension rod 320. The extension rod 320 is slidably connected to the inner cavity of the mounting hole 310. The extension rod 320 is used to move the inner support plate 380 outwards under force. A limiting plate 330 is fixedly connected to the bottom and top of the upper and lower extension rods 320, providing a platform for the installation of the elastic element 340. An elastic element 340 is fixedly connected to the top and bottom of the upper and lower limiting plates 330, and fits onto the outer wall of the extension rod 320. The elastic element 340 is fixedly connected to the top and bottom center of the inner cavity of the second housing 300, and uses elastic force to support the inner support plate 380. The 80-degree return to its original position provides convenience. A connecting block 350 is fixedly connected to the middle of the bottom of the upper limiting plate 330 and the middle of the top of the lower limiting plate 330. A support block 360 is rotatably connected to the middle of the inner wall of the connecting block 350. A movable shell 370 is fixedly connected to the bottom of the upper support block 360 and the top of the lower support block 360. The movable shell 370 is used to drive the extension rod 320 to move up and down respectively by using the squeezing force of the cone 170 and with the help of the support block 360 and the connecting block 350. An inner support plate 380 is fixedly connected to the top of the upper extension rod 320 and the bottom of the lower extension rod 320. The inner support plate 380 is used to support the inner wall of the railing. A second shell 300 is fixedly connected to the left side of the support plate 200. The second shell 300 is used to provide space for storing the extension rod 320.
[0032] Please refer to it again. Figure 1-5 Push rods 150 are fixedly connected to the upper and lower sides of the left side wall of the push plate 140. The push rods 150 penetrate the left side wall of the inner cavity of the housing 100 and extend to the inner cavity of the first housing 220. The push rods 150 can drive the positioning plate 160 to move the cone 170 from right to left by the force applied to them.
[0033] Please refer to it again. Figure 1-5 A positioning plate 160 is fixedly connected between the left ends of the push rod 150. A cone 170 is fixedly connected in the middle of the left side wall of the positioning plate 160. As the cone 170 moves from right to left, it can squeeze the movable shell 370 to move outward step by step.
[0034] Please refer to it again. Figure 1-5 A fixed base 180 is fixedly connected to the middle of the top right side of the housing 100. A connecting rod 181 is rotatably connected to the inner cavity of the fixed base 180. The connecting rod 181 passes through the middle of the top right side of the housing 100 and extends into the inner cavity of the housing 100. The second bevel gear 183 can be driven to rotate by the force of the connecting rod 181.
[0035] Please refer to it again. Figure 1-5A handle 182 is fixedly connected to the top of the connecting rod 181. The outer wall of the handle 182 is provided with anti-slip texture, which makes it convenient to rotate the handle 182.
[0036] Please refer to it again. Figure 1-5 The bottom end of the connecting rod 181 is fixedly connected to a second bevel gear 183, and the second bevel gear 183 meshes with the first bevel gear 130. During the rotation of the second bevel gear 183 under force, it can drive the first bevel gear 130 to rotate.
[0037] In summary, the handle 182 drives the connecting rod 181 to rotate, which in turn drives the second bevel gear 183 to work with the first bevel gear 130 to drive the lead screw 120 to rotate. This causes the push plate 140 to work with the push rod 150 to move the positioning plate 160 and the cone 170 from right to left. At the same time, the cone 170 presses against the movable shell 370, which in turn drives the movable shell 370 to work with the support block 360 and the connecting block 350 to move the two extension rods 320 upward and downward respectively. This causes the inner support plate 380 to fix the inner wall of the railing, making the overall inner support structure stable. This makes it easier for the polishing device to fill and load the railing as a whole, saving time and effort, reducing the labor intensity of the workers, improving the efficiency of the polishing device, and making it easy to use.
[0038] In summary, the smooth gradient of the cone 170 allows the movable shell 370, which rotates with the support block 360 and the connecting block 350, to drive the extension rod 320 to extend infinitely. This enables the device to provide internal support for spaces of different sizes inside the railing, making it easier for the polishing device to fix railings of different sizes inside and facilitating its use.
[0039] In practical use, those skilled in the art first manually insert the second shell 300 and the inner support plate 380 into the internal space of the railing. Then, by holding the handle 182, they rotate the connecting rod 181. The connecting rod 181 is forced to rotate the second bevel gear 183. At the same time, the second bevel gear 183, in conjunction with the first bevel gear 130, drives the lead screw 120 to rotate. The lead screw 120, under force, rotates to drive the push plate 140, in conjunction with the push rod 150, to move from right to left. It also drives the positioning plate 160 to move the cone 170 from left to right. Simultaneously, the cone 170 presses against the movable shell 370, causing the movable shell 370, in conjunction with the support block 360 and the connecting block 350, to drive the two extension rods 320 to move upward and downward respectively. This causes the inner support plate 380 to contact the bottom and top of the inner wall of the railing to complete the inner support fixation.
[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A polishing device for aluminum alloy railing surfaces, characterized in that: The device includes a housing (100), a support plate (200), and a second housing (300). The support plate (200) is located on the left side of the housing (100), and the second housing (300) is fixedly connected to the left side of the support plate (200). A baffle (110) is fixedly connected to the right side of the bottom of the inner cavity of the housing (100). A lead screw (120) is rotatably connected to the middle of the right side wall of the inner cavity of the housing (100), and the lead screw (120) passes through the middle of the upper side of the right side wall of the baffle (110) and is rotatably connected to the housing (100). In the middle of the left side wall of the inner cavity, a first bevel gear (130) is sleeved on the right side of the outer side wall of the lead screw (120). A push plate (140) is threadedly connected to the outer side wall of the lead screw (120). A connecting plate (190) is fixedly connected to the right side wall of the housing (100). A passage hole (210) is opened in the middle of the right side wall of the support plate (200). A first sleeve (220) is fixedly connected to the right side wall of the support plate (200), and the first sleeve (220) is fixedly connected to the left side wall of the housing (100). The second sleeve (30) The top and bottom of the 0) have mounting holes (310) in the middle. An extension rod (320) is slidably connected to the inner cavity of the mounting hole (310). A limiting plate (330) is fixedly connected to the bottom end of the upper extension rod (320) and the top end of the lower extension rod (320). An elastic element (340) is fixedly connected to the top of the upper limiting plate (330) and the bottom of the lower limiting plate (330). The elastic element (340) is sleeved on the outer wall of the extension rod (320). The elastic element (340) is fixedly connected to the second shell ( A connecting block (350) is fixedly connected to the middle of the top and bottom of the inner cavity of the 300, the middle of the bottom of the upper limiting plate (330) and the middle of the top of the lower limiting plate (330). A support block (360) is rotatably connected to the middle of the inner wall of the connecting block (350). A movable shell (370) is fixedly connected to the bottom of the upper support block (360) and the top of the lower support block (360). An inner support plate (380) is fixedly connected to the top of the upper extension rod (320) and the bottom of the lower extension rod (320).
2. The aluminum alloy railing surface polishing device according to claim 1, characterized in that: Push rods (150) are fixedly connected to the upper and lower sides of the left side wall of the push plate (140), and the push rods (150) penetrate the left side wall of the inner cavity of the housing (100) and extend to the inner cavity of the first sleeve (220).
3. The aluminum alloy railing surface polishing device according to claim 2, characterized in that: A positioning plate (160) is fixedly connected between the left ends of the push rod (150), and a vertebra (170) is fixedly connected to the middle of the left side wall of the positioning plate (160).
4. The aluminum alloy railing surface polishing device according to claim 1, characterized in that: A fixing seat (180) is fixedly connected to the middle of the top right side of the housing (100). A connecting rod (181) is rotatably connected to the inner cavity of the fixing seat (180). The connecting rod (181) passes through the middle of the top right side of the housing (100) and extends into the inner cavity of the housing (100).
5. The aluminum alloy railing surface polishing device according to claim 4, characterized in that: A handle (182) is fixedly connected to the top of the connecting rod (181), and the outer side wall of the handle (182) is provided with anti-slip texture.
6. The aluminum alloy railing surface polishing device according to claim 4, characterized in that: The bottom end of the connecting rod (181) is fixedly connected to a second bevel gear (183), and the second bevel gear (183) meshes with the first bevel gear (130).