Quick detaching structure for protective cover of cutting machine

Abstract

The utility model discloses a cutting machine protective cover quick dismounting structure which comprises a cutting machine main machine, a saw blade, an inner cover and a protective cover are installed at the front end of the cutting machine main machine, the saw blade is covered with the inner cover, the inner cover is covered with the protective cover, the bottom of the protective cover is rotationally connected with a supporting plate, and a scale strip is arranged at the upper right end of the supporting plate and leans against the outer portion of the right end of the protective cover. A locking knob used for pressing the scale bar is screwed at the right end of the protective cover, a locking piece is installed on the protective cover and comprises a shifting button and a connecting rod connected to the bottom of the shifting button, the shifting button is exposed out of the top of the protective cover, the connecting rod is contained in the protective cover, the middle of the connecting rod is hinged to the protective cover, and a check block is arranged at the bottom of the connecting rod in a leftward protruding mode. The stop block leans against the bottom of the right end of the inner cover. The device is convenient to assemble and disassemble, and can be assembled and disassembled without using a tool, so that the operation time is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting machine technical field, specifically is a cutting machine protective cover quick detach structure. BACKGROUND

[0002] Cutting machine as an important processing equipment, plays a vital role in the processing of various metals, nonmetallic materials. The application range of cutting machine is wide, from simple plate cutting to complex profile processing, all cannot leave its efficient, accurate cutting capacity. However, in the actual operation process, cutting machine often needs to be adjusted in different forms according to the processing demand, one of which is the disassembly and installation of protective cover.

[0003] In the mechanical processing, the protective cover of cutting machine mainly plays the role of protecting the operator from the harm of splashing sparks, fragments, etc., and also helps to maintain the cleanliness of equipment and prolong the service life. However, in some specific situations, such as fine angle grinding, the protective cover of cutting machine needs to be removed, so that the saw blade of cutting machine is exposed, in order to carry out more accurate processing operation. At this time, cutting machine can be used as an angle grinder, to meet different processing requirements.

[0004] The cutting machine of prior art and structure generally includes cutting machine host, the saw blade, inner cover and protective cover are installed at the front end of cutting machine host, the saw blade is fixedly connected with the output shaft of cutting machine host, the inner cover is fixedly connected at the front end of cutting machine host, the inner cover covers the saw blade, the protective cover is detachably covered outside the inner cover. However, the protective cover of most cutting machines on the market is relatively cumbersome to disassemble, usually adopts the way of screw connection to fix the protective cover on the cutting machine. Although this connection mode is firm and reliable, it is not convenient enough in the occasion where the protective cover needs to be frequently disassembled. Since screw connection needs to be completed by means of tools, not only increases the operation difficulty and time cost, but also may damage the screw or protective cover itself in the disassembly process, which brings inconvenience to the maintenance and maintenance of equipment. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the purpose of the utility model is to provide a cutting machine protective cover quick detach structure.

[0006] The utility model discloses a technical solution is: cutting machine protective cover quick -detachable structure, including cutting machine host computer, cutting machine host computer front end is installed saw blade, inner cover and protective cover, the inner cover covers saw blade outside, the protective cover covers the inner cover outside, the bottom of protective cover is rotatably connected with a support plate, the right upper end of support plate has scale bar, scale bar leans on the right end of protective cover, the right end of protective cover is rotated and has the locking knob for pressing scale bar, the locking knob is installed on the protective cover, and the locking knob includes knob and the connecting rod of the knob bottom, and the knob is exposed on the top of protective cover, and the connecting rod is contained in the protective cover, and the connecting rod middle part is hinged with the protective cover, and the connecting rod bottom is left and protrudes with a stopper, and the stopper leans on the right end bottom position of inner cover.

[0007] Further, the left end of the support plate is rotatably connected with the left lower end of the protective cover through a pin shaft.

[0008] Further, the locking knob includes a screw rod and a knob body fixed outside the screw rod, the right lower end of the protective cover has a threaded hole for the screw rod to be screwed into, the left end of the knob body is pressed on the outer wall of the scale bar, the scale bar has a sliding groove extending upward and downward, and the screw rod passes through the sliding groove and is in upward and downward sliding fit with the sliding groove.

[0009] Further, the left and right ends of the knob bottom are respectively protruded with a first clamping block and a second clamping block, and the first clamping block and the second clamping block are respectively extended into the protective cover and are in contact with the inner wall of the protective cover.

[0010] Further, the top of the protective cover has a movable groove, and the knob is in left and right sliding fit with the movable groove.

[0011] Further, the inner cover is in semicircular ring shape, the inner wall of the protective cover is in arc shape, and the outer wall of the inner cover is in contact with the inner wall of the protective cover.

[0012] Further, the stopper and the lower end of the connecting rod form a clamping groove for the right end of the inner cover to be clamped into.

[0013] Further, after the knob is pushed leftward by hand, the knob drives the connecting rod to rotate counterclockwise, so that the stop plate is away from the inner cover, that is, the stop plate is separated from the right end of the inner cover.

[0014] Further, the left side of the protective cover has a dust outlet.

[0015] The cutting machine protective cover quick-detachable structure has the following beneficial effects: when disassembling, the locking knob is loosened, then the support plate can be rotated clockwise, the support plate is "opened" to facilitate the disassembly of the protective cover, the knob is pushed leftward by hand, the knob drives the connecting rod to rotate counterclockwise, the stop plate is separated from the right end of the inner cover, the inner cover is separated from the restraint of the stopper, and is unlocked, so that the protective cover can be easily taken off, and the operation time is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model when the support plate is not "opened";

[0017] Figure 2 It is a sectional view schematic view of the utility model when the support plate is not "opened";

[0018] Figure 3 It is a whole structure schematic view of the utility model when the support plate is "opened";

[0019] Figure 4 It is a sectional view schematic view of the utility model when the support plate is "opened";

[0020] Figure 5 It is a structure schematic view of the locking piece of the utility model;

[0021] Figure 6 It is another whole structure schematic view of the utility model when the support plate is not "opened".

[0022] As shown in the figure: 1 - cutting machine host, 2 - saw blade, 3 - inner cover, 4 - protective cover, 41 - threaded hole, 42 - dust outlet, 43 - movable groove, 5 - support plate, 6 - scale bar, 61 - sliding groove, 7 - locking knob, 71 - screw rod, 72 - knob main body, 8 - locking piece, 81 - knob, 811 - first clamping block, 812 - second clamping block, 82 - connecting rod, 821 - stop block, 822 - clamping groove, 9 - pin shaft. DETAILED DESCRIPTION

[0023] In order to compare intuitively and completely understand the technical scheme of the utility model, now the following non-restrictive feature descriptions are combined with the utility model drawings:

[0024] As shown in the figure: Figure 1 As shown in the figure: Figure 6 The cutting machine protective cover quick release structure includes cutting machine host 1, the saw blade 2, the inner cover 3 and the protective cover 4 are installed at the front end of the cutting machine host 1, the inner cover 3 is covered outside the saw blade 2, the protective cover 4 is covered outside the inner cover 3, the bottom of the protective cover 4 is rotatably connected with a support plate 5, the right upper end of the support plate 5 has a scale bar 6, the scale bar 6 leans on the right end of the protective cover 4, the right end of the protective cover 4 is rotated with a locking knob 7 for pressing the scale bar 6, the protective cover 4 is installed with a locking piece 8, the locking piece 8 includes a knob 81 and a connecting rod 82 connected at the bottom of the knob 81, the knob 81 is exposed outside the top of the protective cover 4, the connecting rod 82 is contained in the protective cover 4, and the middle part of the connecting rod 82 is hinged with the protective cover 4, the bottom of the connecting rod 82 is protruded with a stop block 821 to the left, and the stop block 821 leans on the right end bottom position of the inner cover 3.

[0025] As shown in the figure: Figure 1 The left end of the support plate 5 is rotatably connected with the left lower end of the protective cover 4 through a pin shaft 9.Figure 3 As shown in the drawings.

[0026] As shown in the drawings. Figure 2 The locking knob 7 comprises a screw rod 71 and a knob body 72 fixed outside the screw rod 71. The right lower end of the protective cover 4 has a threaded hole 41 for the screw rod 71 to screw into. The left end of the knob body 72 is pressed against the outer wall of the scale bar 6. The scale bar 6 has a sliding groove 61 extending upward and downward. The screw rod 71 passes through the sliding groove 61 and is in upward and downward sliding fit with the sliding groove 61. After the locking knob 7 is loosened, the knob body 72 releases the scale bar 6, so the support plate 5 can be rotated.

[0027] As shown in the drawings. Figure 5 The first clamping block 811 and the second clamping block 812 are respectively provided at the left end and the right end of the bottom of the knob 81 and extend into the protective cover 4 and are in contact with the inner wall of the protective cover 4. The first clamping block 811 and the second clamping block 812 are provided to enable the knob 81 to be in close contact with the protective cover 4 and not to be loose.

[0028] As shown in the drawings. Figure 1 The protective cover 4 has a movable groove 43 at the top. The knob 81 is in left and right sliding fit with the movable groove 43.

[0029] As shown in the drawings. Figure 2 The inner cover 3 is in the shape of a semicircular ring. The inner wall of the protective cover 4 is in the shape of an arc. The outer wall of the inner cover 3 is in contact with the inner wall of the protective cover 4.

[0030] As shown in the drawings. Figure 5 The stop block 821 and the lower end of the connecting rod 82 form a clamping groove 822 for the right end of the inner cover 3 to be clamped into.

[0031] After the knob 81 is pushed leftward by hand, the knob 81 drives the connecting rod 82 to rotate counterclockwise, so that the baffle is away from the inner cover 3, i.e. the baffle is separated from the right end of the inner cover 3.

[0032] As shown in the drawings. Figure 6 The left end of the protective cover 4 has a dust outlet 42 on the outer side, which is convenient for matching the use of a dust collector.

[0033] When disassembling, the locking knob 7 is loosened. At this time, the support plate 5 can be rotated clockwise. The support plate 5 is "opened" to facilitate the disassembly of the protective cover 4. Then the knob 81 is pushed leftward by hand. The knob 81 drives the connecting rod 82 to rotate counterclockwise. The baffle is separated from the right end of the inner cover 3. The inner cover 3 is separated from the restraint of the stop block 821. The locking is released. At this time, the protective cover 4 can be easily taken off without the use of tools, thereby greatly saving the operation time.

[0034] Of course, the above only is the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any simple modification and equivalent structural change according to the content of the present application specification and drawings should be reasonably included in the patent protection scope of the present application.

Claims

1. A quick-release structure of a protective cover of a cutting machine, comprising a cutting machine main body, a saw blade, an inner cover and a protective cover being installed at the front end of the cutting machine main body, the inner cover covering the saw blade, and the protective cover covering the inner cover, characterized in that: The bottom of the protective cover is rotationally connected with a support plate, the upper right end of the support plate is provided with a scale bar, the scale bar is located outside the right end of the protective cover, the right end of the protective cover is rotationally provided with a locking knob for pressing the scale bar, the protective cover is provided with a locking member, the locking member comprises a knob and a connecting rod connected to the bottom of the knob, the knob is exposed outside the top of the protective cover, the connecting rod is accommodated in the protective cover, the middle part of the connecting rod is hingedly connected with the protective cover, the bottom of the connecting rod is protrudingly provided with a stopper on the left, and the stopper is located at the bottom of the right end of the inner cover.

2. The quick release structure of a cutting machine guard according to claim 1, wherein: The left end of the support plate is rotationally connected with the lower left end of the protective cover through a pin shaft.

3. The quick release structure of a cutting machine guard according to claim 1, wherein: The locking knob comprises a screw rod and a knob body fixed outside the screw rod, the lower right end of the protective cover is provided with a threaded hole for the screw rod to be screwed into, the left end of the knob body is pressed against the outer wall of the scale bar, the scale bar is provided with a sliding groove extending upward and downward, the screw rod passes through the sliding groove and is in upward and downward sliding fit with the sliding groove.

4. The quick release structure of a cutting machine guard according to claim 1, wherein: The bottom of the knob is protrudingly provided with a first clamping block and a second clamping block on the left and right ends, respectively, the first clamping block and the second clamping block are inserted into the protective cover and are in contact with the inner wall of the protective cover.

5. The quick release structure of a cutting machine guard according to claim 1, wherein: The top of the protective cover is provided with a movable groove, the knob is in left and right sliding fit with the movable groove.

6. The quick release structure of a cutting machine guard according to claim 1, wherein: The inner cover is in a semicircular ring shape, the inner wall of the protective cover is in an arc shape, and the outer wall of the inner cover is in contact with the inner wall of the protective cover.

7. The quick release structure of a cutting machine guard according to claim 1, wherein: The stopper and the lower end of the connecting rod form a clamping groove for the right end of the inner cover to be clamped into.

8. The quick release structure of a cutting machine guard according to claim 1, wherein: After the knob is pulled to the left by hand, the knob drives the connecting rod to rotate counterclockwise, so that the baffle is away from the inner cover, that is, the baffle is separated from the right end of the inner cover.

9. The quick release structure of a cutting machine guard according to claim 1, wherein: The left side of the protective cover is provided with a dust outlet.

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