Manual chain grinding device

Abstract

The utility model discloses a manual chain sharpener which improves stability, improves sharpening effect and prolongs service life. The manual chain sharpener comprises two round files clamped and fixed by an upper fixing head and a lower fixing head, a double-face flat file, two guide columns and a fixing clamp fixed in the upper fixing head. The round files, the flat files and the guide columns are arranged in parallel, the double-face flat file is arranged in the center, the round files are symmetrically arranged on the two sides of the double-face flat file, and the guide columns are symmetrically arranged on the outer sides of the round files. A three-clip elastic clip for inserting a round file and a double-clip elastic clip for inserting a double-sided flat file are arranged on the fixing clip; the section of the guide column is roughly dumbbell-shaped; the guide column is integrally formed by square columns at two ends and a connecting plate for connecting edges and corners of the two square columns; clamping grooves matched with the guide columns are formed in the upper fixing head and the lower fixing head; the upper fixing head and the lower fixing head are each provided with a holding part narrowing outwards, and the two sides of each holding part are each provided with a wave-shaped groove matched with a hand in shape. The outer side of the upper fixing head is hinged with a top cover which is rotatably opened, and the outer side of the lower fixing head is provided with a bottom cover which is buckled and connected; a hanging ring is fixed to the bottom of the bottom cover.

Description

Technical Field

[0001] The utility model relates to a manual chain sharpener for sharpening saw chain cutting teeth. Background Art

[0002] Existing manual chain sharpeners generally use round files and square files to sharpen the saw chain teeth and ensure the cutting force of the saw chain teeth. For example, CN 102039450B discloses a sharpening device for manually sharpening the saw chain teeth of a chain saw, the sharpening device having a frame, the frame having two pairs of guide rods and two head parts spaced apart from each other, the guide rods are arranged parallel to each other and parallel to the longitudinal axis and the head parts are rigidly connected to each other; the round files and two file surfaces are held in the head parts in a gapless and replaceable manner parallel to the longitudinal axis; the guide rod pairs and the corresponding round files and the corresponding file surfaces are arranged rotationally symmetrical about the longitudinal axis; when the saw chain teeth are sharpened with the sharpening device, the two teeth are respectively located between the round files and the file surfaces, and the teeth can be sharpened by pulling the sharpening device back and forth. Since the cutting teeth on the saw chain need to be sharpened regularly and there are a large number of cutting teeth on the saw chain, frequent sharpening will cause the round file and guide rod in the frame to shake, affecting the sharpening effect. The stability and service life of the sharpening device need to be improved. Summary of the invention

[0003] The utility model aims to provide a manual chain grinder which has improved stability, improved grinding effect and service life.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A manual chain sharpener comprises two round files, a double-sided flat file and two guide posts, which are clamped and fixed by upper and lower fixing heads. The round files, the flat file and the guide posts are arranged in parallel, the double-sided flat file is arranged at the center, the round files are symmetrically arranged on both sides of the double-sided flat file, and the guide posts are symmetrically arranged on the outside of the round files; it also comprises a fixing clamp fixed in the upper fixing head, the fixing clamp is provided with a three-clip spring clip for the round file to be inserted and a double-clip spring clip for the double-sided flat file to be inserted; the cross-section of the guide post is roughly dumbbell-shaped, and the guide post is integrally formed by square posts at both ends and a connecting plate connecting the edges and corners of the two square posts; the upper and lower fixing heads are both provided with a card slot matching the guide post; the upper and lower fixing heads are both provided with a gripping portion narrowed outwardly, and both sides of the gripping portion are provided with a wavy groove matching the hand shape; a top cover that is rotatably opened is hinged on the outside of the upper fixing head, and a bottom cover connected with a buckle is provided on the outside of the lower fixing head; a hanging ring is fixed to the bottom of the bottom cover.

[0006] Preferably, a plug-in block which is fixed in a limited position in the upper fixing head is provided at the bottom of the fixing clip, and a plurality of clamping blocks are provided on the plug-in block; and a plurality of limiting blocks which are clamped with the upper fixing head are provided on the side of the fixing clip.

[0007] Preferably, there are two fixing clips, which are fixed in the upper and lower fixing heads respectively.

[0008] Compared with the prior art, the utility model has the following beneficial effects: first, a three-clip spring clip and a double-clip spring clip are arranged on the fixing clip, which firmly clamp the round file and the double-sided flat file in the fixing clip. After the fixing clip is fixed in the upper fixing head, it is pressed by the upper and lower fixing heads, which has higher stability, more stable grinding process and better grinding effect; second, the guide column is integrally formed by the square columns at both ends and the connecting plate connecting the edges and corners of the two square columns, and its cross section is roughly dumbbell-shaped, which greatly expands the fixed connection area of ​​the guide column, making the overall device more stable, and the grinding chain saw teeth more stable, and the integrally formed structure is more compact, and the assembly is more convenient and easy. When the round file or the double-sided straight file needs to be replaced, it is more time-saving and labor-saving, and is more conducive to promotion; third, wavy grooves are arranged on both sides of the gripping parts of the upper and lower fixing heads, and the wavy grooves match the hand shape, which is more convenient and labor-saving to operate, and effectively improves the grinding effect; fourth, the design of the hanging ring can be hung when not in use to prevent other debris from touching and damaging the chain grinder, saving space, facilitating storage, and effectively improving the service life.

[0009] Further beneficial effects: first, a plug-in block is provided at the bottom of the fixing clamp, and the block of the plug-in block is limited and fixed in the upper fixing head. A limit block is provided on the side of the fixing clamp and is fixed with the upper fixing head. In this way, the fixing clamp is firmly fixed in the horizontal and vertical directions, and the stability of the internal round file and double-sided straight file of the fixing clamp is further improved, the grinding is more stable, and the grinding effect is better; second, the fixing clamp is set to two, which are respectively fixed in the upper and lower fixing heads, which further improves the stability of the overall device and makes the assembly simpler and easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the manual chain sharpener of the utility model;

[0011] Figure 2 It is a schematic diagram of the three-dimensional exploded structure of the manual chain sharpener of the utility model;

[0012] Figure 3 It is a three-dimensional structural schematic diagram of a fixing clamp in a manual chain sharpener of the utility model;

[0013] Figure 4 It is a partial cross-sectional structural schematic diagram of the manual chain grinder of the utility model;

[0014] Figure 5 It is a schematic diagram of the transverse cross-sectional structure of the chain grinder of the utility model;

[0015] Among them, 1. double-sided flat file; 2. round file; 3. guide column; 4. fixing clip; 5. gripping part; 10. upper fixing head; 11. top cover; 20. lower fixing head; 21. bottom cover; 22. hanging ring; 30. card slot; 40. three-clip spring card; 41. double-clip spring card; 42. plug-in block; 43. limit block; 44. card block; 110. card hook. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the utility model clearer, the following Figure 1-5 It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the protection scope of the utility model.

[0017] A manual chain sharpener, comprising an upper fixed head 10, a lower fixed head 20, two round files 2 arranged in parallel, a double-sided flat file 1, two guide posts 3, and a fixing clamp 4; the round file 2, the double-sided flat file 1, and the guide post 3 are all arranged in parallel, and the two ends are respectively inserted into the upper fixed head 10 and the lower fixed head 20; the installation positions of the round file 2, the double-sided flat file 1, and the guide post 3 are all in the prior art, that is, the double-sided flat file 1 is arranged at the center, the two round files 2 are respectively arranged on both sides of the double-sided flat file 1, and the two guide posts 3 are respectively arranged on the two round files 2 The fixing clip 4 is installed in the upper fixing head 10, and the upper fixing head 10 and the lower fixing head 20 are both provided with limiting grooves that match and limit the ends of the guide column 3, the round file 2, and the double-sided flat file 1; a top cover 11 is hingedly connected to the top surface of the upper fixing head 10, and a hook 110 is matched with the side of the top cover 11 and the inner side of the upper fixing head 10. The top cover 11 is rotated and opened to replace the round file 2, the double-sided straight file 1, etc. After the top cover 11 is closed, it is fixedly buckled with the upper fixing head 10 by pressing the hook 110; a bottom cover 21 is provided on the bottom surface of the lower fixing head 20, The connection between the bottom cover 21 and the lower fixing head 20 can be by screw fastening, buckle fixing, etc.; the fixing clip 4 installed in the upper fixing head 10 is composed of an upper clamping end and a lower limiting end, and the clamping end includes two three-clip spring clips 40 for inserting the round file 2 and a double-clip spring clip 41 for inserting the double-sided flat file 1; the three-clip spring clips 40 are respectively arranged on both sides of the double-clip spring clip 41; the lower limiting end of the fixing clip 4 includes a plug-in block 42 extending outward and a limiting block 43 extending to the side, and a plurality of card blocks 44 are arranged on the plug-in block 42 The upper fixing head 10 is provided with a plurality of grooves matching the clamping block 44, and the upper fixing head 10 is also provided with a plurality of limit grooves matching the limit block 43. The arrangement of the plug-in block 42 and the limit block 43 limits the four degrees of freedom of the fixing clip 4 in the horizontal and vertical directions. In addition, the clamping at both ends of the upper and lower fixing heads limits the six degrees of freedom of the fixing clip 4, and the fixing clip 4 is firmly installed and fixed in the upper fixing head 10; a more preferred solution is that the fixing clip 4 can also be set to two, which are respectively fixed in the upper and lower fixing heads, so that the overall device is more stable and the grinding is more stable.

[0018] The cross-section of the guide column 3 is roughly dumbbell-shaped, and the guide column 3 is integrally formed by square columns at both ends and a connecting plate connecting the corner edges of the two square columns; the upper and lower fixed heads are each provided with a card slot 30 matching the guide column 3, and the two guide columns 3 are firmly clamped by the card slot 30; the upper and lower fixed heads are also each provided with a gripping portion 5 that narrows outward, and both sides of the gripping portion 5 are provided with a wavy groove matching the hand shape, which is convenient for hand-held operation, saves time and effort, and has better grinding stability; a hanging ring 22 is fixed to the bottom of the bottom cover 21, and it is hung by the hanging ring 22, which saves space and is more convenient for storage.

[0019] In the description of the present technical solution, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "inner" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present technical solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technical solution.

[0020] At the same time, in the description of this technical solution, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0021] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present technical solution, and that the scope of the present technical solution is defined by the appended claims and their equivalents.

Claims

1. A manual chain sharpener, comprising two round files (2) clamped and fixed by upper and lower fixing heads, a double-sided flat file (1), and two guide posts (3), wherein the round file (2), the double-sided flat file (1) and the guide posts (3) are arranged in parallel, the double-sided flat file (1) is arranged at the center, the round file (2) is symmetrically arranged on both sides of the double-sided flat file (1), and the guide posts (3) are symmetrically arranged on the outside of the round file (2), characterized in that: The invention also comprises a fixing clamp (4) fixed in the upper fixing head (10), and the fixing clamp (4) is provided with a three-clip spring clip (40) for inserting the round file (2) and a double-clip spring clip (41) for inserting the double-sided flat file (1); the cross section of the guide column (3) is roughly dumbbell-shaped, and the guide column (3) is integrally formed by square columns at both ends and a connecting plate connecting the edges of the two square columns; the upper and lower fixing heads are both provided with a card slot (30) matching the guide column (3); the upper and lower fixing heads are both provided with a gripping portion (5) narrowed outwards, and both sides of the gripping portion (5) are provided with a wavy groove matching the shape of a hand; the outer side of the upper fixing head (10) is hinged with a top cover (11) that rotates to open, and the outer side of the lower fixing head (20) is provided with a bottom cover (21) connected with a buckle; the bottom of the bottom cover (21) is fixed with a hanging ring (22).

2. The manual chain sharpener according to claim 1, characterized in that: The bottom of the fixing clamp (4) is provided with a plug-in block (42) which is fixed in a limited position in the upper fixing head (10), and the plug-in block (42) is provided with a plurality of clamping blocks (44); the side of the fixing clamp (4) is provided with a plurality of limiting blocks (43) which are clamped with the upper fixing head (10).

3. The manual chain sharpener according to claim 2, characterized in that: There are two fixing clips (4), which are fixed in the upper and lower fixing heads respectively.

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