阅读说明：本技术 一种磨石固定架 (Grindstone mount ) 是由 陈博辉 于 2021-11-03 设计创作，主要内容包括：本申请的实施例提供一种磨石固定架,涉及生活用品技术领域,能够在调节范围内调节孔与调节靠山的固定孔相配合,固定不同长度的磨石,调节孔与固定孔用螺丝固定不移位,主体下部设延长架使磨石固定架能卡在不同宽度的水槽上,斜脚设计磨刀时越往下压卡得越紧,防止磨石固定架前后移动,设排污槽收集磨刀时产生的污水,防止污水流到外面,设排水口让污水集中排放,调节靠山用快夹装置代替,快夹装置能快速让磨石向靠山一边移动并夹紧,大大增强产品的易用性,拆装磨石便捷。(The embodiment of the application provides a grindstone mount, relate to articles for daily use technical field, can be in the adjusting range regulation hole and the cooperation of the fixed orifices of adjusting the backer, the grindstone of fixed different length, the regulation hole does not shift with the fixed orifices with the screw fixation, the main part lower part is established and is prolonged the frame and make the grindstone mount can block on the basin of different width, press down more and block more tightly when the slant foot design is whetted a knife, prevent grindstone mount back-and-forth movement, establish the sewage that the blowdown groove produced when collecting whetted a knife, prevent that the sewage from flowing to the outside, it lets sewage concentrate the emission to establish the outlet, adjust the backer and replace with quick-clamping device, quick-clamping device can let the grindstone remove and press from both sides tightly to the backer fast, strengthen the ease of product greatly, it is convenient to dismouting grindstone.)

1. The grinding stone fixing frame is characterized in that the grinding stone fixing frame is provided with a main body, the upper portion of the main body is provided with a backer, and the backer prevents a grinding stone from moving under the action of external force; an adjusting backer is arranged at the upper part of the main body, and the adjusting backer is matched with the backer to fix the grindstone; the main body is provided with an adjusting hole, the adjusting hole consists of a plurality of holes, and the adjusting backer is fixed in an adjusting range so as to fix grindstones with different lengths; the adjusting backer is provided with a fixing hole for fixing the adjusting backer to the main body; the backer is replaced by the adjusting backer, and two adjusting backer are used for fixing the grindstone.

2. The grindstone mount according to claim 1, wherein the grindstone mount is further provided with an extension frame, the extension frame is disposed at a lower portion of the main body, the extension frame is provided with the adjustment hole, the adjustment hole of the extension frame can be fixed to the adjustment hole of the main body within an adjustment range, and the extension frame and the main body are provided with an inclined leg below, the inclined leg can be clamped on the water tank and pressed down more and more to prevent the grindstone mount from moving back and forth.

3. The grindstone holder according to claim 2, further comprising a sewage discharge groove provided in the extension frame and the main body for collecting sewage generated during grinding of the grindstone and preventing the sewage from flowing outside, wherein a drain port is provided at a bottom of the sewage discharge groove for draining the sewage or connecting a drain pipe.

4. The grindstone fixing frame according to any one of claims 1 to 3, wherein the adjustment of the backer is replaced with a quick clamping device which can quickly move and clamp the grindstone to the side of the backer, the quick clamping device having a body provided with a fixing hole for fixing the quick clamping device to the main body, and a fitting hole for fitting a spring provided in the fitting hole, the spring generating a pushing force to push and clamp the grindstone to the backer to prevent the grindstone from moving.

5. The grindstone fixing frame according to claim 4, wherein the quick clamping device further comprises a knock pin, the knock pin is disposed on the fitting hole, the spring abuts against the knock pin with one end, the knock pin is used for enlarging a contact surface with the grindstone, and a nut is disposed at a tail portion of the knock pin and prevents the spring and the knock pin from falling out of the fitting hole.

6. The grindstone holder according to any one of claims 1 to 3, wherein the adjustment of the backer is replaced with a quick clamping device which quickly moves and clamps the grindstone to the side of the backer, the quick clamping device has a body provided with a fixing hole for fixing the quick clamping device to the main body, the body is provided with a screw hole in which a screw is provided, one end of the screw is provided with a wrench, the screw is extended forward or retracted backward by rotating the wrench, the grindstone is pushed toward the backer and clamped when the screw is extended forward, the grindstone is prevented from moving, and the grindstone is released when the screw is retracted backward.

7. The grindstone holder according to claim 6, wherein the quick clamping means further comprises an assembly groove provided in front of the screw hole, and a top block provided in the assembly groove for preventing damage to the grindstone by the screw.

8. The grindstone holder according to any one of claims 1 to 3, wherein the adjustment of the backer is replaced with a quick clamping device capable of quickly moving and clamping the grindstone to the side of the backer, the quick clamping device has a body provided with a fixing hole for fixing the quick clamping device to the main body, the body is provided with an assembly groove in which a passive slider is provided, a driving slider is provided at a lower portion of the passive slider, the driving slider is provided with a screw hole in which a screw is provided, a wrench is provided at one end of the screw, the screw is rotated by the wrench to drive the driving slider, the driving slider pushes the passive slider to push the grindstone to the backer and clamp the grindstone, the grindstone is prevented from moving, and the grindstone is loosened when the grindstone is retracted.

9. The stone holder as claimed in any one of claims 6 to 8, wherein the snap-on device further comprises a toothed connection for adjusting the angle between the screw and the wrench, the toothed connection comprising a male tooth disposed at one end of the screw, the toothed connection comprising a female tooth disposed at one end of the wrench, the female tooth being fitted over the male tooth.

10. A stone holder as claimed in any one of claims 1 to 3, the adjusting backer is replaced by a quick clamping device which can quickly move and clamp the grindstone to the side of the backer, the quick clamping device is provided with a body, the body is provided with a fixing hole, used for fixing the quick clamping device on the main body, the main body is provided with an assembling hole used for assembling the ejector pin, the top pin is movably connected with the supporting sheet, the other end of the supporting sheet is movably connected with the wrench, the wrench is movably connected with the body, the wrench is pushed to change the angle between the supporting sheet and the wrench, the top pin is extended forwards to push the grinding stone to the mountain and clamp the grinding stone, so that the grinding stone is prevented from moving, loosening the grindstone when the ejector pin is retracted backwards; the body is provided with a limit position for preventing the wrench from moving to the other direction to loosen the quick clamping device.

11. The stone holder according to any of claims 1 to 3, wherein the adjustment of the backer is replaced with a quick clamping device which allows the stone to be moved to the side of the backer and clamped, the quick clamping device has a body having a fixing hole for fixing the quick clamping device to the main body, the body has a fitting hole for fitting the knock pin movably connected to a wrench, the wrench is movably connected to the body with a support plate, the wrench is pushed to change an angle between the support plate and the wrench, the knock pin is extended forward to push the stone toward the backer and clamp the stone to prevent the stone from moving, the knock pin is retracted to release the stone, and the body has a stopper to prevent the wrench from moving in the other direction to release the quick clamping device.

Technical Field

The application relates to the technical field of articles for daily use, in particular to a grindstone fixing frame.

Background

The grindstone fixing frame is a necessary tool for fixing the grindstone during grinding, and when the tool is blunt, the tool needs to be ground, so that the conventional grindstone fixing frame is inconvenient to adjust, the distance is adjusted by adopting an adjusting groove, the stress is small, the grindstone is easy to move and is not firmly fixed, and the grindstone is inconvenient to fix; the feet of the fixing frame are right angles or splayed angles, and are clamped on the water tank, cannot be clamped and can move back and forth; the sewage that produces when whetting a knife can flow outside the mount and pollute other places, and the function is single extremely inconvenient.

Disclosure of Invention

The embodiment of the application provides a grindstone mount, establish the backer in the main part and adjust the backer or two regulation backer cooperations, be used for fixed grindstone, establish the regulation hole in the main part and adjust the fixed orifices of backer and cooperate in the accommodation, the grindstone of fixed different length, the regulation hole is with the fixed orifices with the screw fixation not aversion, the extension frame is established to the main part lower part makes grindstone mount can block on the basin of different width, it is tighter to press the card down more when oblique foot design is whetted a knife, prevent grindstone mount back-and-forth movement, establish the sewage that produces when blowdown groove collects the whetting a knife, prevent that the sewage from flowing to the outside, it lets sewage concentrate the emission to establish the outlet, adjust the backer and replace with quick-clamping device, quick clamping device can let the grindstone move and press from both sides tightly to the backer fast, strengthen the ease of product greatly, it is convenient to dismouting grindstone.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the embodiment of the application provides a grinding stone fixing frame which is provided with a main body, wherein the upper part of the main body is provided with a backer, and the backer prevents a grinding stone from moving under the action of external force; an adjusting backer is arranged at the upper part of the main body, and the adjusting backer is matched with the backer to fix the grindstone; the main body is provided with an adjusting hole, the adjusting hole consists of a plurality of holes, and the adjusting backer is fixed in an adjusting range so as to fix grindstones with different lengths; the adjusting backer is provided with a fixing hole for fixing the adjusting backer to the main body; the backer is replaced by the adjusting backer, the two adjusting backer are used for fixing the grindstone, the grindstone is fixed in the middle of the main body, the stress is uniform, and the main body is not easy to damage.

Furthermore, the grindstone mount is further provided with an extension frame, the extension frame is arranged on the lower portion of the main body, the length of the main body is increased, the grindstone mount can be fixed to water tanks with different widths, the extension frame is provided with the adjusting holes, the extension frame is fixed to the adjusting holes of the main body in the adjusting range of the adjusting holes, the adjusting holes of the main body and the adjusting holes of the extension frame are fixed through screws and do not shift, oblique feet are arranged below the extension frame and the main body, the middle space between the two oblique feet is wide at the top and narrow at the bottom, the oblique feet can be clamped on the water tanks and are clamped more tightly when pressed downwards, and the grindstone mount is prevented from moving back and forth.

Further, the grindstone mount still is equipped with the blowdown groove, the blowdown groove set up in the extension frame with in the main part for collect the sewage that produces when whetting a knife, prevent that the sewage from flowing to the difficult washing of outside, the blowdown tank bottom is equipped with the outlet for discharge sewage, connect the drainage pipe and arrange sewage to sewer or slop pail in.

Furthermore, adjust the backer and replace with pressing from both sides the device soon, press from both sides the device soon and can let the grindstone remove and press from both sides tightly to the backer, press from both sides the device soon and be equipped with the body, be equipped with the fixed orifices on the body for press from both sides the device soon and fix in the main part, be equipped with the pilot hole on the body for the assembly spring, the spring set up in the pilot hole, the spring produces thrust and pushes the grindstone to the backer and press from both sides tightly, prevents that the grindstone from removing.

Further, the quick clamping device is further provided with a knock pin, the knock pin is arranged on the assembly hole, one end of the spring props against the knock pin, the knock pin is used for increasing a contact surface with a grinding stone and reducing damage of the spring to the grinding stone, a nut is arranged at the tail of the knock pin, and the nut prevents the spring and the knock pin from falling out of the assembly hole.

Further, adjust the backer and replace with pressing from both sides the device soon, press from both sides the device soon and can let the grindstone remove and press from both sides tightly to backer one side fast, it is equipped with the body to press from both sides the device soon, be equipped with the fixed orifices on the body, be used for the soon press from both sides the device and fix to in the main part, be equipped with the screw hole on the body, be equipped with the screw rod in the screw hole, the spanner is established to screw rod one end, rotates the spanner makes the screw rod is to the forward extension or the backward retraction, pushes the grindstone to when the forward extension the backer is pressed from both sides tightly, prevents that the grindstone from removing, loosens the grindstone when the backward retraction.

Further, the quick clamping device is further provided with an assembly groove, the assembly groove is formed in the front of the screw hole, a jacking block is arranged in the assembly groove, and the jacking block is used for preventing the screw from damaging the grinding stone.

Further, adjust the backer and replace with pressing from both sides the device soon, press from both sides the device soon and can let the grindstone remove and press from both sides tightly to backer one side fast, it is equipped with the body to press from both sides the device soon, be equipped with the fixed orifices on the body, be used for the soon press from both sides the device and fix in the main part, establish in the assembly tank on the body, be equipped with passive slider in the assembly tank, passive slider lower part is equipped with the initiative slider, the initiative slider is equipped with the screw hole, be equipped with the screw rod in the screw hole, the spanner is established to the screw rod one end, rotates the spanner makes the screw rod rotates the drive the initiative slider, the initiative slider promotes passive slider pushes the grindstone to the backer and press from both sides tightly, prevents that the grindstone from removing, loosens the grindstone when retracting backward.

Furthermore, the quick clamping device is further provided with a tooth-shaped connection, the tooth-shaped connection is used for adjusting the angle between the screw rod and the wrench, the length of the screw hole, which is extended out of the screw rod, of the screw rod is adjusted, the wrench is stopped at a proper position, the wrench cannot be touched during sharpening, male teeth are arranged on the tooth-shaped connection and arranged at one end of the screw rod, female teeth are arranged on one end of the wrench, and the female teeth are sleeved outside the male teeth.

Furthermore, the adjusting backer is replaced by a quick clamping device, the quick clamping device can quickly enable the grinding stone to move towards the backer and clamp the grinding stone, the quick clamping device is provided with a body, the body is provided with a fixing hole for fixing the quick clamping device on the main body, the body is provided with an assembling hole for assembling the ejector pin, the ejector pin is movably connected with a supporting sheet, the other end of the supporting sheet is movably connected with a wrench, the wrench is movably connected with the body, the wrench is pulled to change the angle between the supporting sheet and the wrench, the ejector pin extends forwards to push the grinding stone towards the backer and clamp the grinding stone, the grinding stone is prevented from moving, the ejector pin loosens the grinding stone when retracting backwards, and the body is provided with a limit position for preventing the wrench from moving towards the other direction and loosening the quick clamping device.

Furthermore, the adjusting backer is replaced by a quick clamping device, the quick clamping device can quickly move and clamp the grinding stone to the backer side, the quick clamping device is provided with a body, the body is provided with a fixing hole for fixing the quick clamping device on the main body, the body is provided with an assembling hole for assembling the ejector pin, the ejector pin is movably connected with a wrench, the wrench is movably connected with the body by a supporting sheet, the wrench is pulled to change the angle between the supporting sheet and the wrench, the ejector pin extends forwards to push the grinding stone to the backer and clamp the grinding stone, the grinding stone is prevented from moving, and the grinding stone is loosened when the ejector pin retracts backwards; the body is provided with a limit position for preventing the wrench from moving to the other direction to loosen the quick clamping device.

Drawings

FIG. 1 is a top view of a grindstone holder;

FIG. 2 is a top view of two adjustable backer boards fixedly mounted on the grindstone;

FIG. 3 is a front oblique view of the extension frame and the oblique leg for fixing and erecting the grindstone;

FIG. 4 is a top oblique view of a sewage draining groove fixedly erected on the grindstone and a spring arranged on the quick clamp;

FIG. 5 is a top oblique view of a spring and a knock pin mounted on the quick clamp of the grindstone holder;

FIG. 6 is a bottom view of the grindstone holder with a spring and a knock pin clamped quickly;

FIG. 7 is a sectional view of the body with a spring and a knock pin mounted on the quick clamp;

FIG. 8 is a top oblique view of a wrench and a screw for quick clamping of the grindstone holder;

FIG. 9 is a top oblique view of the connection of the wrench and the screw of the quick clamping device in a tooth form;

FIG. 10 is a top oblique view of a quick clamping device with a wrench, a screw and a top block of the grindstone holder;

FIG. 11 is a top oblique view of the quick clamp apparatus with a wrench, a screw, a passive slider, and an active slider;

FIG. 12 is a bottom oblique view of the quick clamp apparatus with wrench, screw, passive slider, and active slider;

FIG. 13 is a top oblique view of the quick clamp with the ejector pin, the support plate and the wrench;

FIG. 14 is a bottom oblique view of the quick clamp device with the ejector pin, the support plate and the wrench;

FIG. 15 is a top oblique view of the quick clamp apparatus with the ejector pin, wrench and support plate;

FIG. 16 is a bottom oblique view of the quick clamp apparatus with the ejector pin, wrench and support piece;

reference numerals: 1 a main body; 1-1 leaning against a mountain; 1-2, adjusting backer; 1-3 adjusting holes; 1-4 fixing holes; 1-5 of an extension frame; 1-6 oblique feet; 1-7 sewage draining grooves; 1-8 water outlets; 2, a quick clamping device; 2-1 of a body; 2-2 assembling holes; 2-3 springs; 2-4, jacking; 2-5 screw caps; 2-6 screw holes; 2-7 screw rods; 2-8 wrenches; 2-9 assembling grooves; 2-10 of a top block; 2-11 tooth-shaped connection; 2-12 male teeth; 2-13 female teeth; 2-14 passive sliders; 2-15 active slide block; 2-16 support sheet; 2-17 limit.

Detailed Description

As shown in fig. 1 and 2, the embodiment of the present application provides a grinding stone fixing frame, which includes a main body 1, a rest 1-1 disposed on the upper portion of the main body 1 for preventing the grinding stone from moving under the action of external force, and an adjusting rest 1-2 disposed on the upper portion of the main body 1 for cooperating with the rest 1-1 to clamp the grinding stone therebetween; the main body 1 is provided with adjusting holes 1-3, the adjusting holes 1-3 are composed of a plurality of holes, and the backer 1-2 is fixedly adjusted in an adjusting range, so that grinding stones with different lengths are fixed; the adjusting backer 1-2 is provided with a fixing hole 1-4 for fixing the adjusting backer 1-2 on the main body 1; the backer 1-1 or the adjusting backer 1-2 is used for replacing, the two adjusting backer 1-2 are used for fixing the grindstone in the middle of the main body 1, the stress is uniform, and the main body is not easy to damage.

As shown in fig. 3, 4 and 5, the grindstone fixing frame is further provided with an extension frame 1-5, the extension frame 1-5 is arranged at the lower part of the main body 1, the length of the main body 1 is increased, so that the grindstone fixing frame can be fixed on water tanks with different widths, the extension frame 1-5 is provided with an adjusting hole 1-3, the extension frame 1-5 is fixed on the adjusting hole 1-3 of the main body in the adjusting range of the adjusting hole 1-3, the adjusting hole of the main body 1 and the adjusting hole 1-3 of the extension frame 1-5 are fixed by screws without displacement, the extension frame 1-5 and the main body 1 are provided with an inclined leg 1-6, the middle space between the two inclined legs 1-6 is wide at the top and narrow at the bottom, the inclined leg 1-6 can be clamped on the water tank and is pressed more tightly, and the front and back movement of the grindstone fixing frame during grinding is prevented.

As shown in fig. 4, 5 and 6, the grindstone holder is further provided with a sewage discharge groove 1-7, which is disposed on the extension frame 1-5 and the main body 1 and is used for collecting sewage generated during sharpening of the grindstone and preventing the sewage from flowing outside and being difficult to clean, and a water discharge port 1-8 is disposed at the bottom of the sewage discharge groove 1-7 and is used for discharging the sewage and is connected with a water discharge pipe to discharge the sewage into a sewer or a sewage bucket.

As shown in fig. 1, 4, 5 and 6, the adjusting backer 1-2 is replaced by a quick clamping device 2, and the quick clamping device 2 can quickly move and clamp the grinding stone to the side of the backer without tools, so that the method is convenient and quick; the quick clamping device 2 is provided with a body 2-1, a plurality of fixing holes 1-4 are formed in the body and fixed with adjusting holes 1-3, the adjusting holes 1-3 are arranged in six rows, the rows are arranged in a staggered mode, four adjusting holes 1-3 are communicated with the fixing holes 1-4 after moving for about 2mm each time, the quick clamping device 2 is used for fixing the quick clamping device 2 to the body 1, assembling holes 2-2 are formed in the body 2-1 and used for assembling springs 2-3, the springs 2-3 are arranged in the assembling holes 2-2, and the springs 2-3 generate thrust to push a grinding stone to a mountain 1-1 and clamp the grinding stone to prevent the grinding stone from moving; the operation method for assembling the grinding stone comprises the following steps: holding two sides of the grindstone by hands, pushing the spring 2-3 into the assembling hole 2-2 by pushing the middle part of one end of the grindstone against the spring, and pressing the grindstone downwards to ensure that the bottom of the grindstone touches the main body 1 and the grindstone is loosened, so that the grindstone is automatically clamped; the operation method for disassembling the grindstone comprises the following steps: holding the two sides of the grindstone by hands, pushing the spring 2-3 into the assembling hole 2-2 by the grindstone, lifting one end of the grindstone to be away from the backer 1-1, moving the grindstone towards the backer 1-1, and unloading the grindstone.

As shown in fig. 4, 5, 6 and 7, the quick clamping device 2 is further provided with a knock pin 2-4, the knock pin 2-4 is arranged on the assembly hole 2-2, one end of the spring 2-3 abuts against the knock pin 2-4, the knock pin 2-4 is used for enlarging a contact surface with a grinding stone and reducing damage of the spring 2-3 to the grinding stone, the tail part of the knock pin 2-4 is provided with a nut 2-5, the nut 2-5 prevents the spring 2-3 and the knock pin 2-4 from falling out of the assembly hole 2-2, and the operation method for assembling the grinding stone comprises the following steps: holding two sides of the grindstone by hands, pushing the ejector pin 2-4 in the middle of one end of the grindstone, pushing the ejector pin 2-4 into the assembly hole, and pressing the grindstone downwards to enable the bottom of the grindstone to touch the main body 1 and then loosening the hands to automatically clamp the grindstone; the operation method for disassembling the grindstone comprises the following steps: holding the two sides of the grindstone by hands, pushing the top pin 2-4 into the assembling hole 2-2 by the grindstone, lifting one end of the grindstone to leave the backer 1-1, moving the grindstone in the direction of the backer 1-1, and unloading the grindstone.

As shown in fig. 1, 5 and 8, the adjusting backer 1-2 is replaced by a quick clamping device 2, the quick clamping device can quickly move and clamp the grinding stone to one side of the backer 1-1, the quick clamping device is provided with a body 2-1, the body 2-1 is provided with a fixing hole 1-4 for fixing the quick clamping device on the main body 1, the body 1 is provided with a screw hole 2-6, a screw 2-7 is arranged in the screw hole 2-6, one end of the screw 2-7 is provided with a wrench 2-8, the wrench 2-8 is rotated to enable the screw 2-7 to extend forwards or retract backwards, the grinding stone is pushed to the backer 1-1 and clamped when the screw extends forwards, the grinding stone is prevented from moving, and the grinding stone is loosened when the screw retracts backwards; the operation method for disassembling and assembling the grindstone comprises the following steps: the grinding stone is placed between the backer 1-1 and the quick clamping device 2, and the wrench 2-8 is rotated to jack 2-4 to clamp the grinding stone, so that the grinding stone can be used; the grinding stone can be dismounted by rotating the wrench 2-8 in the opposite direction and retracting the knock pin 2-4 backwards.

As shown in figure 10, the quick clamping device is further provided with an assembly groove 2-9, the assembly groove 2-9 is arranged in front of a screw hole 2-6, a top block 2-10 is arranged in the assembly groove 2-9, and the top block 2-10 is used for preventing a screw from damaging a grinding stone.

As shown in figures 1, 5, 10, 11 and 12, the adjusting backer 1-2 is replaced by a quick clamping device 2 which can quickly move and clamp the grinding stone to one side of the backer 1-1, the quick clamping device is provided with a body 2-1 which is provided with a fixing hole 1-4 for fixing the quick clamping device on a main body 1, the body 2-1 is provided with an assembly groove 2-2, a driven slide block 2-14 is arranged in the assembly groove 2-2, a driving slide block 2-15 is arranged at the lower part of the driven slide block 2-14, the driving slide block 2-15 is provided with a screw hole 2-6, a screw rod 2-7 is arranged in the screw hole 2-6, a spanner 2-8 is arranged at one end of the screw rod 2-7, the screw rod 2-7 is rotated by rotating the spanner 2-8 and drives the driving slide block 2-15, the driving slide block 2-15 pushes the driven slide block 2-14 to push the grinding stone to the backer 1-1 and clamp the grinding stone, so as to prevent the grinding stone from moving, and the grinding stone is loosened when the driven slide block 2-14 retracts backwards; the operation method for disassembling and assembling the grindstone comprises the following steps: the grinding stone is placed between the backer 1-1 and the quick clamping device 2, and the spanner 2-8 is rotated to clamp the grinding stone by the driven slide block 2-14, so that the grinding stone can be used; the driven sliding blocks 2-14 of the wrench are rotated in the opposite direction to retract backwards, and the grindstone can be dismounted after being loosened.

As shown in fig. 9 and 10, the quick clamping device is further provided with a tooth-shaped connection 2-11, the tooth-shaped connection 2-11 is used for adjusting the angle between the screw rod 2-7 and the wrench 2-8, the length of the screw rod 2-7 extending out of the screw hole 2-6 is adjusted, the wrench is allowed to stay at a proper position, the wrench is not touched when grinding the knife, the tooth-shaped connection 2-11 is provided with male teeth, the male teeth 2-12 are arranged at one end of the screw rod 2-7, the tooth-shaped connection 2-11 is provided with female teeth, the female teeth 2-13 are arranged at one end of the wrench 2-8, and the female teeth 2-13 are sleeved outside the male teeth 2-12.

As shown in figures 1, 5, 10, 13 and 14, the adjusting backer 1-2 is replaced by a quick clamping device 2 which can quickly move and clamp the grindstone to one side of the backer, the quick clamping device is provided with a body 2-1 which is provided with a fixing hole 1-4 for fixing the quick clamping device on a main body 1, the body 2-1 is provided with an assembling hole 2-2 for assembling a top pin 2-4, the top pin 2-4 is movably connected with a supporting sheet 2-16, the other end of the supporting sheet 2-16 is movably connected with a wrench 2-8, the wrench 2-8 is movably connected with the body 2-1, the wrench 2-8 is pulled to change the angle between the supporting sheet 2-16 and the wrench 2-8, the top pin 2-4 is extended forwards to push and clamp the grindstone to the backer 1-1 to prevent the grindstone from moving, loosening the grinding stones when the ejector pins 2-4 are retracted backwards; the body 2-1 is provided with a limit 2-17 for preventing the wrench 2-8 from moving to the other direction to loosen the quick clamping device; the operation method for disassembling and assembling the grindstone comprises the following steps: the grinding stone is placed between the backer 1-1 and the quick clamping device 2, and the wrench 2-8 pulls the knock pin 2-4 backwards to clamp the grinding stone, so that the grinding stone can be used; the grinding stone can be dismounted by pushing the ejector pin 2-4 forwards and retracting the spanner 2-8 backwards.

As shown in fig. 1, 5, 10, 15 and 16, the adjusting backer 1-2 is replaced by a quick clamping device 2, the quick clamping device can quickly move and clamp the grinding stone to the side of the backer, the quick clamping device is provided with a body, the body is provided with fixing holes 1-4 for fixing the quick clamping device on the main body 1, the body is provided with assembling holes 2-2 for assembling ejector pins 2-4, the ejector pins 2-4 are movably connected with a wrench 2-8, the wrench 2-8 is movably connected with the body 2-1 by support sheets 2-16, the wrench 2-8 is pushed to change the angle of the support sheets 2-16 and the wrench 2-8, the ejector pins 2-4 are extended forwards to push the grinding stone to the backer 1-1 and clamp the grinding stone so as to prevent the grinding stone from moving, and the ejector pins 2-4 are retracted backwards to loosen the grinding stone; the body is provided with a limit 2-17 for preventing the wrench from moving to the other direction to loosen the quick clamping device; the operation method for disassembling and assembling the grindstone comprises the following steps: the grinding stone is placed between the backer 1-1 and the quick clamping device 2, and the wrench 2-8 pulls the knock pin 2-4 backwards to clamp the grinding stone, so that the grinding stone can be used; the grinding stone can be dismounted by pushing the ejector pin 2-4 forwards and retracting the spanner 2-8 backwards.