A dust protection cover for an optical encoder

By designing a dustproof protective cover for the grating ruler with a base plate, dust blocking mechanism, and dust removal mechanism, the problems of poor protection effect and inconvenient installation of existing grating ruler protective covers are solved. This achieves efficient dust protection and simplified installation of the grating ruler, is suitable for grating rulers of different specifications, and ensures high-precision measurement in complex environments.

CN224401822UActive Publication Date: 2026-06-23SUZHOU JINYUAN PRECISION MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU JINYUAN PRECISION MACHINERY CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-23

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Abstract

The utility model relates to grating ruler technical field discloses a grating ruler dustproof protection cover, including the bottom plate, the outer wall fixedly connected with dustproof mechanism of bottom plate, dustproof mechanism is used for sealing, the top fixedly connected with dust removal mechanism of dustproof mechanism, dust removal mechanism is used for dust removal, dustproof mechanism includes the connecting plate, the outer wall rotationally connected in the outer wall of bottom plate of connecting plate, the outer wall fixedly connected with the top plate of connecting plate, the outer wall rotationally connected with the connecting frame of top plate, the outer wall rotationally connected with the rotating frame of connecting frame, the outer wall of rotating frame is opened and is connected with the connecting assembly, the outer wall front side fixedly connected with the engagement assembly of connecting plate. In the utility model, the sliding groove is opened in the inner wall of fixed frame, the brush plate is located in the outer wall of sliding groove, the handle is located in the outer wall of brush plate, can slide when dustproof plate dust more and clean, the outer wall of fixed frame is equipped with the rotatable connection of rotating column, thereby discharging dust.
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Description

Technical Field

[0001] This utility model relates to the field of grating ruler technology, and in particular to a dustproof protective cover for grating rulers. Background Technology

[0002] As a measurement feedback device that utilizes the optical principle of gratings, the grating ruler has been widely used in precision measurement since the 1950s due to its large detection range, high accuracy, and fast response speed. It can measure linear displacement, angle, and straightness parameters and can be connected to a computer or digital display instrument to complete automated measurement and data processing.

[0003] As a precision measurement feedback device that utilizes the optical principle of gratings, the working environment of grating rulers is often quite complex. In laboratory environments, there may be tiny particulate contaminants generated by surrounding experimental operations. Once these contaminants adhere to the grating ruler, they will interfere with light propagation and the formation of interference fringes, thereby reducing measurement accuracy. In industrial production scenarios, machine tool operation generates a large amount of dust, oil, and metal shavings, often accompanied by coolant splashing. Although there are designs to add protective covers to the grating ruler, existing protective covers generally have limited protective effects, are inconvenient to install, and have poor adaptability to different specifications of grating rulers, thus failing to fully meet actual needs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a dustproof protective cover for a grating ruler, aiming to improve the problems of inconvenient installation and poor dustproof effect in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dustproof protective cover for a grating ruler, comprising a base plate, a dust-blocking mechanism fixedly connected to the outer wall of the base plate for sealing, and a dust removal mechanism fixedly connected to the top of the dust-blocking mechanism for dust removal;

[0006] The dust-blocking mechanism includes a connecting plate, the outer wall of which is rotatably connected to the outer wall of the base plate, a top plate fixedly connected to the outer wall of the connecting plate, a connecting frame rotatably connected to the outer wall of the top plate, a rotating frame rotatably connected to the outer wall of the connecting frame, a connecting component provided on the outer wall of the rotating frame, a locking component fixedly connected to the front side of the outer wall of the connecting plate, and a sealing component slidably connected to the inner wall of the rotating frame.

[0007] As a further description of the above technical solution:

[0008] The dust removal mechanism includes a dust baffle plate, the outer wall of which is fixedly connected to a top plate. A fixed frame is fixedly connected to the top of the top plate. A support component is fixedly connected to the outer wall of the fixed frame. A rotating component is rotatably connected to the outer wall of the support component. A sliding groove is provided on the inner wall of the fixed frame. A dust sweeping component is slidably connected to the outer wall of the sliding groove.

[0009] As a further description of the above technical solution:

[0010] The locking assembly includes a movable buckle, the outer wall of which is fixed to the outer wall of the base plate, and a locking block is fixedly connected to the outer wall of the top plate.

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes a connecting column, the outer wall of which is rotatably connected to a connecting frame, and the outer wall of the rotating frame is provided with a slot.

[0013] As a further description of the above technical solution:

[0014] The sealing assembly includes a telescopic plate that is slidably connected to the inner wall of the rotating frame, and a rubber ring is fixedly connected to the outer wall of the telescopic plate.

[0015] As a further description of the above technical solution:

[0016] The support assembly includes an L-shaped plate, the outer wall of which is fixedly connected to a fixing frame, and a fixing column is fixedly connected to the outer wall of the L-shaped plate.

[0017] As a further description of the above technical solution:

[0018] The rotating assembly includes a baffle, the outer wall of which is rotatably connected to the baffle, and a rotating column is fixedly connected to the outer wall of the baffle.

[0019] As a further description of the above technical solution:

[0020] The dust sweeping assembly includes a brush plate that is slidably connected to a sliding groove, and a handle is fixedly connected to the top of the brush plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when in use, the outer wall base plate is fixed to the outer wall of the grating ruler, the rear side of the base plate is connected to the connecting plate, the outer wall of the connecting plate is connected to the top plate, the outer wall of the top plate is provided with a locking block, the front side of the base plate is provided with a movable buckle and a locking mechanism, the outer wall of the top plate is connected to a connecting frame, the rotating frame is connected to the outer wall of the connecting frame through a slot, the inner wall of the rotating frame is slidably connected to a telescopic plate, and the outer wall of the telescopic plate is connected to a rubber ring for sealing and adjusting the edge of the device.

[0023] 2. In this utility model, a dust baffle is provided on the outer wall of the top plate, a fixed frame is connected to the outer wall of the top plate, an L-shaped plate is provided at the connection between the outer wall of the fixed frame and the top plate to play a reinforcing role, a sliding groove is opened on the inner wall of the fixed frame, a brush plate is provided on the outer wall of the sliding groove, and a handle is located on the outer wall of the brush plate. When there is a lot of dust on the dust baffle, it can be slid to clean. A rotating column is provided on the outer wall of the fixed frame to rotate and connect, thereby discharging dust. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a dustproof protective cover for a grating ruler proposed in this utility model;

[0025] Figure 2 This is a partial structural exploded view of a dustproof protective cover for a grating ruler proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of a dustproof protective cover for a grating ruler proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of a dustproof protective cover for a grating ruler proposed in this utility model;

[0028] Figure 5 This is a partial structural schematic diagram of a dustproof protective cover for a grating ruler proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Dust-blocking mechanism; 201. Connecting plate; 202. Top plate; 203. Connecting frame; 204. Snap-fit ​​assembly; 2041. Movable buckle; 2042. Positioning block; 205. Rotating frame; 206. Connecting assembly; 2061. Connecting column; 2062. Slot; 207. Sealing assembly; 2071. Telescopic plate; 2072. Rubber ring; 3. Dust removal mechanism; 301. Dust-blocking plate; 302. Support assembly; 3021. L-shaped plate; 3022. Fixed column; 303. Fixed frame; 304. Rotating assembly; 3041. Rotating column; 3042. Baffle; 305. Sliding groove; 306. Dust sweeping assembly; 3061. Brush plate; 3062. Handle. Detailed Implementation

[0031] 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.

[0032] Please see the appendixFigure 1 - Appendix Figure 3 An embodiment of this utility model is provided: a dustproof protective cover for a grating ruler, including a base plate 1, a dust blocking mechanism 2 fixedly connected to the outer wall of the base plate 1, the dust blocking mechanism 2 being used for sealing, and a dust removal mechanism 3 fixedly connected to the top of the dust blocking mechanism 2, the dust removal mechanism 3 being used for dust removal.

[0033] The dust-blocking mechanism 2 includes a connecting plate 201, the outer wall of the connecting plate 201 is rotatably connected to the outer wall of the base plate 1, the outer wall of the connecting plate 201 is fixedly connected to a top plate 202, the outer wall of the top plate 202 is rotatably connected to a connecting frame 203, the outer wall of the connecting frame 203 is rotatably connected to a rotating frame 205, the outer wall of the rotating frame 205 is provided with a connecting component 206, the front side of the outer wall of the connecting plate 201 is fixedly connected to a locking component 204, and the inner wall of the rotating frame 205 is slidably connected to a sealing component 207.

[0034] Specifically, the outer wall of the connecting plate 201 is connected to the outer wall of the base plate 1 via a rotatable connection to ensure that the two can rotate flexibly. A top plate 202 is also fixedly connected to the outer wall of the connecting plate 201. The outer wall of the top plate 202 is also connected to the connecting frame 203 via a rotatable connection, so that the connecting frame 203 can rotate within a certain range. The outer wall of the connecting frame 203 is further connected to the rotating frame 205 via a rotatable connection. A connecting component 206 is provided on the outer wall of the rotating frame 205 to facilitate the expansion of more functions. In addition, a locking component 204 is fixedly connected to the front side of the outer wall of the connecting plate 201 to enhance the stability of the overall structure. The inner wall of the rotating frame 205 is connected to the sealing component 207 via a sliding connection.

[0035] Please see the appendix Figure 2 - Appendix Figure 3 The dust removal mechanism 3 includes a dust baffle 301, the outer wall of which is fixedly connected to the top plate 202, a fixed frame 303 is fixedly connected to the top of the top plate 202, a support component 302 is fixedly connected to the outer wall of the fixed frame 303, a rotating component 304 is rotatably connected to the outer wall of the support component 302, a sliding groove 305 is provided on the inner wall of the fixed frame 303, and a dust sweeping component 306 is slidably connected to the outer wall of the sliding groove 305.

[0036] Specifically, the outer wall of the dust baffle 301 is fixedly connected to the surface of the top plate 202 to ensure its stability and durability. The top area of ​​the top plate 202 is fixedly connected to a fixing frame 303. A support component 302 is fixedly connected to the outer wall of the fixing frame 303. The support component 302 plays a supporting role in the overall structure. A rotating component 304 that can rotate freely is rotatably connected to the outer wall of the support component 302, which makes the whole device flexible during use. In addition, a precision sliding groove 305 is opened on the inner wall of the fixing frame 303. A dust sweeping component 306 is connected to the outer wall of the sliding groove 305 through a smooth sliding connection.

[0037] Please see the appendix Figure 3 - Appendix Figure 4 The engaging assembly 204 includes a movable buckle 2041, the outer wall of which is fixed to the outer wall of the base plate 1. A locking block 2042 is fixedly connected to the outer wall of the top plate 202. The connecting assembly 206 includes a connecting post 2061, the outer wall of which is rotatably connected to the connecting frame 203. A slot 2062 is provided on the outer wall of the rotating frame 205. The sealing assembly 207 includes a telescopic plate 2071, which is slidably connected to the inner wall of the rotating frame 205. A rubber ring 2072 is fixedly connected to the outer wall of the telescopic plate 2071.

[0038] Specifically, the outer wall of the movable buckle 2041 is fixed to the outer wall of the base plate 1 to ensure its stability. The outer wall of the top plate 202 is fixedly connected to a locking block 2042 for docking. The connecting component 206 mainly consists of a connecting post 2061. The outer wall of the connecting post 2061 is rotatably connected to the connecting frame 203. The outer wall of the rotating frame 205 has a slot 2062 for cooperating with the connecting post 2061 to ensure the stability and reliability of the connection. The sealing component 207 includes a key telescopic plate 2071. The telescopic plate 2071 is slidably connected to the inner wall of the rotating frame 205 and can be telescopically adjusted when needed. A high-quality rubber ring 2072 is fixedly connected to the outer wall of the telescopic plate 2071, which provides a good sealing effect.

[0039] Please see the appendix Figure 3 - Appendix Figure 5The support component 302 includes an L-shaped plate 3021, the outer wall of which is fixedly connected to the fixing frame 303, and a fixing column 3022 is fixedly connected to the outer wall of the L-shaped plate 3021. The rotating component 304 includes a baffle 3042, the outer wall of which is rotatably connected to the baffle 3042, and a rotating column 3041 is fixedly connected to the outer wall of the baffle 3042. The dust sweeping component 306 includes a brush plate 3061, which is slidably connected to the sliding groove 305, and a handle 3062 is fixedly connected to the top of the brush plate 3061.

[0040] Specifically, the outer wall of the L-shaped plate 3021 is fixedly connected to the fixed frame 303 to ensure its stability. The outer wall of the L-shaped plate 3021 is also connected to a fixed column 3022. The outer wall of the baffle 3042 is fixedly connected to a rotating column 3041. The dust sweeping assembly 306 is mainly composed of a brush plate 3061. The brush plate 3061 is slidably connected in the sliding groove 305, allowing it to slide freely in the groove. The top of the brush plate 3061 is also fixedly connected to a handle 3062 for easy operation.

[0041] Working principle: When in use, the outer wall base plate 1 is fixed to the outer wall of the grating ruler. A connecting plate 201 is connected to the rear side of the base plate 1. A top plate 202 is connected to the outer wall of the connecting plate 201. A locking block 2042 is provided on the outer wall of the top plate 202. A movable buckle 2041 is provided on the front side of the base plate 1 and engages with the locking block 2042. A connecting frame 203 is connected to the outer wall of the top plate 202. A rotating frame 205 is connected to the outer wall of the connecting frame 203 through a slot 2062. A telescopic plate 2071 is slidably connected to the inner wall of the rotating frame 205. A rubber ring 2072 is connected to the outer wall of the telescopic plate 2071 to seal and adjust the edge of the device.

[0042] A dust baffle 301 is provided on the outer wall of the top plate 202. A fixed frame 303 is connected to the outer wall of the top plate 202. An L-shaped plate 3021 is provided at the connection between the outer wall of the fixed frame 303 and the top plate 202 for reinforcement. A sliding groove 305 is provided on the inner wall of the fixed frame 303. A brush plate 3061 is provided on the outer wall of the sliding groove 305. A handle 3062 is provided on the outer wall of the brush plate 3061. When there is a lot of dust on the dust baffle 301, it can be slid and cleaned. A rotating column 3041 is provided on the outer wall of the fixed frame 303 for rotational connection to discharge dust.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof protective cover for a grating ruler, comprising a base plate (1), characterized in that: A dust-blocking mechanism (2) is fixedly connected to the outer wall of the base plate (1). The dust-blocking mechanism (2) is used for sealing. A dust removal mechanism (3) is fixedly connected to the top of the dust-blocking mechanism (2). The dust removal mechanism (3) is used for dust removal. The dust-blocking mechanism (2) includes a connecting plate (201), the outer wall of the connecting plate (201) is rotatably connected to the outer wall of the base plate (1), the outer wall of the connecting plate (201) is fixedly connected to a top plate (202), the outer wall of the top plate (202) is rotatably connected to a connecting frame (203), the outer wall of the connecting frame (203) is rotatably connected to a rotating frame (205), the outer wall of the rotating frame (205) is provided with a connecting component (206), the front side of the outer wall of the connecting plate (201) is fixedly connected to a locking component (204), and the inner wall of the rotating frame (205) is slidably connected to a sealing component (207).

2. The dustproof protective cover for a grating ruler according to claim 1, characterized in that: The dust removal mechanism (3) includes a dust baffle (301), the outer wall of which is fixedly connected to a top plate (202), a fixed frame (303) is fixedly connected to the top of the top plate (202), a support component (302) is fixedly connected to the outer wall of the fixed frame (303), a rotating component (304) is rotatably connected to the outer wall of the support component (302), a sliding groove (305) is provided on the inner wall of the fixed frame (303), and a dust sweeping component (306) is slidably connected to the outer wall of the sliding groove (305).

3. The dustproof protective cover for a grating ruler according to claim 1, characterized in that: The locking assembly (204) includes a movable buckle (2041), the outer wall of which is fixed to the outer wall of the base plate (1), and a locking block (2042) is fixedly connected to the outer wall of the top plate (202).

4. The dustproof protective cover for a grating ruler according to claim 1, characterized in that: The connecting assembly (206) includes a connecting post (2061), the outer wall of which is rotatably connected to the connecting frame (203), and the outer wall of the rotating frame (205) is provided with a slot (2062).

5. The dustproof protective cover for a grating ruler according to claim 1, characterized in that: The sealing assembly (207) includes a telescopic plate (2071) which is slidably connected to the inner wall of the rotating frame (205), and a rubber ring (2072) is fixedly connected to the outer wall of the telescopic plate (2071).

6. The dustproof protective cover for a grating ruler according to claim 2, characterized in that: The support component (302) includes an L-shaped plate (3021), the outer wall of which is fixedly connected to a fixing frame (303), and a fixing column (3022) is fixedly connected to the outer wall of which.

7. A dustproof protective cover for a grating ruler according to claim 2, characterized in that: The rotating assembly (304) includes a baffle (3042), the outer wall of which is rotatably connected to the baffle (3042), and a rotating column (3041) is fixedly connected to the outer wall of the baffle (3042).

8. The dustproof protective cover for a grating ruler according to claim 2, characterized in that: The dust sweeping assembly (306) includes a brush plate (3061), which is slidably connected to a sliding groove (305), and a handle (3062) is fixedly connected to the top of the brush plate (3061).