Stirring head with scraping function

Abstract

The utility model discloses a stirring head with a material scraping function, which comprises a stirring rod, a blade mounting frame is fixedly connected onto the stirring rod, a plurality of stirring blades for stirring are arranged on the blade mounting frame, movable material scraping pieces are arranged on the stirring blades, and the movable material scraping pieces can move relative to the stirring blades. The stirring blades are arranged on the stirring shaft and used for scraping residues on the stirring blades after stirring, the movable scraping pieces are arranged on the stirring blades in a sleeving mode, and after a mixture is stirred, the movable scraping pieces can be moved relative to the stirring blades, so that the movable scraping pieces scrape the residues adhering to the stirring blades after stirring.

Description

Technical Field

[0001] The utility model relates to a stirrer, in particular to a stirring head with a material scraping function. Background Art

[0002] A stirrer is a device that forces convection and uniform mixing of liquid and gaseous media. It is commonly used in the fields of construction, chemical industry, food, etc. For example, a hand-held stirrer (also called a putty machine) used to mix concrete in the construction field can also be used to mix paint in the chemical industry.

[0003] For example, patent CN220784385U discloses a mortar mixer, which includes a shell, a housing cavity is formed in the shell, a motor is installed in the housing cavity, a transmission mechanism is connected to the output shaft of the motor, a stirring mechanism is connected to the transmission mechanism and is driven to rotate by the transmission mechanism, the stirring mechanism includes a rotating shaft, a stirring paddle, a screw belt and a reinforcement ring, the rotating shaft is detachably fixedly connected to the transmission shaft of the transmission mechanism, the stirring paddle is fixedly connected to the rotating shaft, the stirring paddle is set at an angle to the rotating shaft, the screw belt is fixedly connected to the stirring paddle, the reinforcement ring is fixedly connected to the stirring paddle, and the stirring mechanism rotates to stir the mixture.

[0004] The stirring heads of existing stirrers have different shapes, but there is a problem that during the process of stirring the mixture, the mixture will remain on the stirring head. If the mixture stuck to the stirring head is not removed after use, it will be extremely difficult to remove after the mixture is left to stand and solidify, affecting use. Utility Model Content

[0005] Based on the problem that during the above-mentioned process of stirring the mixture, the mixture will remain on the stirring head. If the mixture stuck to the stirring head is not removed after use, it will be extremely difficult to remove the mixture after it is left to stand and solidify. The utility model provides a stirring head with a scraping function.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a stirring head with a scraping function comprises a stirring rod, a blade mounting frame is fixedly connected to the stirring rod, a plurality of stirring blades for stirring are arranged on the blade mounting frame, and a movable scraper is arranged on the stirring blade. The movable scraper and the stirring blade can move relatively to each other to scrape off the residue on the stirring blade after stirring.

[0007] A further preferred technical solution of the utility model is: the stirring blade is a straight plate, the stirring blade is parallel to the stirring rod, the movable scraper is sleeved on the stirring blade and can move up and down relative to the stirring blade, and a locking mechanism is provided between the movable scraper and the stirring rod or between the movable scraper and the stirring blade, and the locking mechanism can lock the movement of the movable scraper relative to the stirring blade.

[0008] A further preferred technical solution of the utility model is: a plurality of the stirring blades pass through the movable scraper, and the movable scraper is sleeved on the stirring rod and can move up and down along the stirring rod.

[0009] A further preferred technical solution of the utility model is: the blade mounting frame is a mounting plate fixed to the bottom end of the stirring rod, the movable scraper includes a scraper, the scraper is sleeved on the stirring rod and is located above the mounting plate, the scraper is parallel to the mounting plate, a plurality of stirring blades are located between the mounting plate and the scraper, and a plurality of stirring blades pass through the scraper, and a through hole is provided on the scraper for the stirring blades to pass through, the scraper can move up and down relative to the stirring blade, an anti-slip portion located above the scraper is fixed to the upper end of the stirring blade, the anti-slip portion is used to block the scraper from above when the scraper moves up, a sleeve located above the scraper is fixed on the scraper, the sleeve is sleeved on the stirring rod and can move up and down along the stirring rod.

[0010] A further preferred technical solution of the utility model is: the locking mechanism includes a locking hole arranged on the sleeve and an elastic locking buckle arranged on the stirring rod. The elastic locking buckle can be retracted into the stirring rod after being pressed by force, and can be elastically reset after losing force. The elastic locking buckle is inserted into the locking hole to limit the relative movement of the sleeve and the stirring rod.

[0011] Another topic: A stirring head with a scraping function, comprising a stirring rod, a blade mounting frame fixedly connected to the stirring rod, a plurality of stirring blades for stirring are provided on the blade mounting frame, a movable scraper is provided on the stirring blade, the movable scraper can move relative to the stirring blade to move and switch between a scraping starting position and a scraping ending position, an elastic member for driving the movable scraper to move and reset is provided on the stirring blade or the stirring rod, when the movable scraper is subjected to force to move toward the scraping ending position relative to the stirring blade, the movable scraper scrapes off the residue on the stirring blade after stirring, and when the movable scraper loses force, the elastic member drives the movable scraper to move relative to the stirring blade and reset to the scraping starting position.

[0012] A further preferred technical solution of the utility model is: the stirring blade is a straight plate, the stirring blade is parallel to the stirring rod, and the movable scraper is sleeved on the stirring blade and can move up and down relative to the stirring blade.

[0013] A further preferred technical solution of the utility model is: a plurality of the stirring blades pass through the movable scraper, and the movable scraper is sleeved on the stirring rod and can move up and down along the stirring rod.

[0014] A further preferred technical solution of the utility model is: the blade mounting frame is a mounting plate fixed to the bottom end of the stirring rod, the movable scraper includes a scraper, the scraper is sleeved on the stirring rod and is located above the mounting plate, the scraper is parallel to the mounting plate, a plurality of stirring blades are located between the mounting plate and the scraper, and a plurality of stirring blades pass through the scraper, and a through hole is provided on the scraper for the stirring blades to pass through, the scraper can move up and down relative to the stirring blade, an anti-slip portion located above the scraper is fixed to the upper end of the stirring blade, the anti-slip portion is used to block the scraper from above when the scraper moves up, a sleeve located above the scraper is fixed on the scraper, the sleeve is sleeved on the stirring rod and can move up and down along the stirring rod.

[0015] A further preferred technical solution of the utility model is: a plurality of stirring blades are arranged in a ring array with the stirring rod as the center, the stirring blades have a stirring surface for stirring, a point on the stirring surface is connected with a point on the stirring rod to form a vertical line perpendicular to the stirring rod, the vertical line has an angle with the stirring surface, and the stirring surface is not perpendicular to the vertical line.

[0016] Compared with the prior art, the utility model has the advantage that a movable scraper is provided on the stirring blade, and the movable scraper can move relative to the stirring blade. After the mixture is stirred, the movable scraper can be moved relative to the stirring blade to scrape off the residue stuck on the stirring blade after stirring, so as to avoid the problem that the mixture is extremely difficult to remove after it is left to stand and solidify. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a structural schematic diagram of embodiment 1;

[0019] Figure 2 This is a state diagram of the movable scraper member in the first embodiment when moving downward to scrape the material;

[0020] Figure 3 It is a structural schematic diagram of the movable scraper in the first embodiment;

[0021] Figure 4 This is a disassembled diagram of the stirring blade and the blade mounting frame in the first embodiment;

[0022] Figure 5 It is a cutaway schematic diagram of Embodiment 1;

[0023] Figure 6 for Figure 5 A local enlarged view of point A in FIG.

[0024] Figure 7 This is a state diagram of the movable scraper in the second embodiment being located at the scraping starting position;

[0025] Figure 8 A state diagram of the movable scraper member in the second embodiment being located at the scraping end position;

[0026] Fig. 9 It is a cross-sectional schematic diagram of the second embodiment.

[0027] In the figure: 1. stirring rod; 2. sleeve; 3. elastic lock; 4. locking hole; 5. scraper; 6. anti-slip part; 7. stirring blade; 8. blade mounting frame; 9. perforation; 10. stirring surface; 11. vertical line; 12. second inner ring plate; 13. second connecting plate; 14. second outer ring plate; 15. first outer ring plate; 16. first connecting plate; 17. first inner ring plate; 18. plug-in hole; 19. plug-in block; 20. mounting groove; 21. first center hole; 22. fastening nut; 23. threaded connection part; 24. first step; 25. elastic member; 26. upper limit part; 27. outer ring edge; 28. connecting sleeve; 29. ​​connecting cavity. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0029] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0030] Embodiment 1

[0031] Figure 1-Figure 6 As shown, a stirring head with a scraping function comprises a stirring rod 1, to which a blade mounting frame 8 is fixedly connected, on which a plurality of stirring blades 7 for stirring are arranged, and on which a movable scraper is arranged, and the movable scraper and the stirring blade 7 can move relative to each other to scrape off residues on the stirring blade 7 after stirring, and a locking mechanism is arranged between the movable scraper and the stirring rod 1 or between the movable scraper rod and the stirring blade 7, and the locking structure can lock the movement of the movable scraper relative to the stirring blade 7.

[0032] Preferably, the movable scraper is sleeved on the stirring blade 7 , and the movable scraper can move up and down relative to the stirring blade 7 .

[0033] After the mixture is stirred, the movable scraper can be moved relative to the stirring blade 7 to scrape off the residues adhering to the stirring blade 7 after stirring, so as to avoid the problem that the mixture is extremely difficult to remove after being left to solidify.

[0034] Figure 1 , Figure 2 As shown, preferably, the stirring blade 7 is a straight plate, and the stirring blade 7 is parallel to the stirring rod 1. Each stirring blade 7 has the same structure.

[0035] Preferably, a plurality of stirring blades 7 are arranged in a circular array with the stirring rod 1 as the center, and the stirring blades 7 have a stirring surface 10 for contacting the mixture to be stirred, and a point on the stirring surface 10 is connected to a point on the stirring rod 1 to form a vertical line 11 perpendicular to the stirring rod 1, and the vertical line 11 has an angle with the stirring surface 10, and the stirring surface 10 is not perpendicular to the vertical line 11, so that the stirring surface 10 is not in the radial direction of the stirring rod 1, and the angle is α.

[0036] Preferably, a plurality of stirring blades 7 pass through a movable scraper, and the movable scraper is sleeved on the stirring rod 1 and can move up and down along the stirring rod 1 .

[0037] Figure 1-Figure 4 As shown, preferably, the blade mounting frame 8 is a mounting plate fixed to the bottom end of the stirring rod 1, and the movable scraper includes a scraper 5, which is sleeved on the stirring rod 1 and located above the mounting plate, and the scraper 5 is parallel to the mounting plate. A plurality of stirring blades 7 are located between the mounting plate and the scraper 5, and one end of the stirring blade 7 is connected to the mounting plate, and the other end of the stirring blade 7 passes through the scraper 5. The scraper 5 is provided with a through hole 9 for the stirring blade 7 to pass through, and the scraper 5 is sleeved on all the stirring blades 7 through each through hole 9. The scraper 5 can move up and down relative to the stirring blade 7, and the upper end of the stirring blade 7 is fixed with an anti-slip portion 6 located above the scraper 5, and the anti-slip portion 6 is used to block the scraper 5 from above when the scraper 5 moves up, and the scraper 5 is fixed with a sleeve 2 located above the scraper 5, and the sleeve 2 is sleeved on the stirring rod 1 and can move up and down along the stirring rod 1.

[0038] Figure 5 As shown, preferably, a threaded connection portion 23 is provided at the lower end of the stirring rod 1, and a first step 24 is formed between the threaded connection portion 23 and the outer wall of the stirring rod 1. A first center hole 21 is provided at the center of the mounting plate, and the mounting plate is sleeved on the threaded connection portion 23 through the first center hole 21. The mounting plate is threadedly connected to the threaded connection portion 23 through a fastening nut 22 to press the mounting plate tightly on the first step 24 and fix it to the stirring rod 1.

[0039] Preferably, the mounting plate includes a first inner ring plate 17, a first outer ring plate 15 and a plurality of first connecting plates 16, the first outer ring plate 15 is sleeved on the outside of the first inner ring plate 17, and the first inner ring plate 17 is concentric with the first outer ring plate 15, the first connecting plate 16 is arranged between the first outer ring plate 15 and the first inner ring plate 17, and the two ends of the first connecting plate 16 are respectively connected to the first inner ring plate 17 and the first outer ring plate 15, the center of the first inner ring plate 17 has a first center hole 21, and the lower ends of a plurality of stirring blades 7 are fixedly connected to the first outer ring plate 15.

[0040] Preferably, a plug-in block 19 is provided on the lower end surface of the stirring blade 7, and a plug-in hole 18 corresponding to the plug-in block 19 is provided on the first outer ring plate 15. The plug-in block 19 is inserted into the plug-in hole 18 and fixed to the first outer ring plate 15, and the lower end surfaces of the stirring blade 7 on both sides of the plug-in block 19 are against the upper surface of the first outer ring plate 15. The plug-in block 19 can be tightly plugged with the plug-in hole 18 on the first outer ring plate 15, or the plug-in block 19 and the first outer ring plate 15 are fixed by screws after being plugged, or the plug-in block 19 and the first outer ring plate 15 are fixed together by welding after being plugged. Existing conventional fixing methods are all applicable to this patent.

[0041] Preferably, the scraper 5 includes a second inner ring plate 12, a second outer ring plate 14 and a plurality of second connecting plates 13, the second outer ring plate 14 is sleeved on the outside of the second inner ring plate 12, and the second inner ring plate 12 is concentric with the second outer ring plate 14, the second connecting plate 13 is arranged between the second outer ring plate 14 and the second inner ring plate 12, and the two ends of the second connecting plate 13 are respectively connected to the second outer ring plate 14 and the second inner ring plate 12, a second center hole is provided in the center of the second inner ring plate 12 for the second inner ring plate 12 to be movably sleeved on the stirring rod 1, the above-mentioned sleeve 2 is fixed on the upper surface of the second inner ring plate 12, and the inner hole of the sleeve 2 is connected to the second center hole, and the above-mentioned through hole 9 is arranged on a circle of the second outer ring plate 14.

[0042] The shape of the through hole 9 is the same as the cross-section of the stirring blade 7, so that when the scraper 5 moves downward, the mixture adhering to the peripheral wall of the stirring blade 7 can be scraped downward through the lower edge of the through hole 9.

[0043] Preferably, the anti-detachment portion 6 is a baffle fixed to the upper end of the stirring blade 7 , and both ends of the baffle protrude from both sides of the stirring blade 7 to prevent the scraper 5 from moving upward and detaching from the stirring blade 7 .

[0044] The locking mechanism is a conventional locking method in the art, and all conventional existing locking structures are applicable to this patent. For example, a threaded hole connected to the sleeve 2 is provided on the sleeve 2, a fastening bolt is threadedly connected to the threaded hole, and the fastening bolt is screwed in so that the fastening bolt is pressed against the outer wall of the inner stirring rod 1, thereby locking the movable scraper relative to the stirring blade 7; or, for example, a first pin hole penetrating the sleeve 2 is provided on the sleeve 2, and a second pin hole penetrating the stirring rod 1 is provided, and a first pin shaft passes through the first pin hole and the second pin hole to lock the movable scraper relative to the stirring blade 7.

[0045] Figure 6 As shown, for example, in this patent, the locking mechanism includes a locking hole 4 provided on the sleeve 2 and an elastic lock buckle 3 provided on the stirring rod 1. The elastic lock buckle 3 can be retracted into the stirring rod 1 after being pressed by force, and can be elastically restored after losing force. The elastic lock buckle 3 is inserted into the locking hole 4 to limit the relative movement of the sleeve 2 and the stirring rod 1.

[0046] Specifically, a mounting groove 20 is provided on the upper end surface of the stirring rod 1, and the elastic locking buckle 3 is a V-shaped spring clip buckle currently available on the market for connecting between tubes. A protruding opening is provided on the side wall of the stirring rod 1 and is connected to the mounting groove 20. The V-shaped spring clip buckle is inserted into the mounting groove 20 from the notch on the upper end surface of the stirring rod 1, and the two elastic edges of the V-shaped spring clip buckle are supported on the inner walls on both sides of the mounting groove 20, and the buckling part of the V-shaped spring clip buckle protrudes from the protruding opening. When the sleeve 2 and the scraper 5 move upward along the stirring rod 1 relative to the stirring blade 7, the buckling part of the V-shaped spring clip buckle contacts the upper edge of the sleeve 2 and is squeezed by the sleeve 2 to shrink into the mounting groove 20. At this time, the elastic edge of one side of the buckling part of the V-shaped spring clip buckle is compressed and deformed to store force. After the buckling part of the V-shaped spring clip buckle is retracted into the mounting groove 20, the sleeve 2 and the scraper 5 can continue to move upward until the locking hole 4 moves to a position opposite to the protruding opening. At this time, the buckle The outside of the buckle part is no longer under stress, and the elastic edge of the V-shaped spring clip buckle elastically resets and releases the elastic force to push the buckle part out of the extension port, so that the buckle part is inserted into the locking hole 4 to limit the movement of the sleeve 2 and the scraper 5 relative to the stirring blade 7. When unlocking is required, the hand holds the sleeve 2 and pushes the sleeve 2 downward, so that the sleeve 2 and the scraper 5 move downward along the stirring rod 1. At this time, the edge of the locking hole 4 squeezes the buckle part to retract the buckle part into the mounting groove 20. At this time, the elastic edge of one side of the buckle part fixed with the V-shaped spring clip buckle is compressed and deformed to accumulate force. After the buckle part of the V-shaped spring clip buckle is retracted into the mounting groove 20, the sleeve 2 and the scraper 5 can continue to move downward until the sleeve 2 moves to the bottom of the extension port and exposes the extension port, completing the unlocking. The V-shaped spring clip buckle no longer restricts the movement of the movable scraper relative to the stirring blade 7. At this time, the outside of the buckle part is no longer under stress, and the elastic edge of the V-shaped spring clip buckle elastically resets and releases the elastic force to push the buckle part out of the extension port.

[0047] The V-shaped spring clip buckle is an example of the V-shaped spring clip of the brand OYES / OYES Technology.

[0048] Figure 1 As shown, during stirring, the movable scraper is locked by the locking mechanism to move relative to the stirring blade 7. At this time, the scraper 5 is located at the upper end of the stirring blade 7. The stirring rod 1 is connected to the power output device on the stirring body. The stirring rod 1 is driven to rotate by the power output device of the stirring device. The stirring rod 1 drives the mounting plate, the scraper 5 and the stirring blade 7 to rotate together. At this time, the mounting plate and the scraper 5 serve as support frames at the upper and lower ends of the stirring blade 7 respectively to support the stirring blade 7. During the rotation of the stirring blade 7, the stirring surface 10 contacts the mixture to stir the mixture.

[0049] Figure 2 As shown, when the stirring blade 7 needs to be scraped after stirring, the locking mechanism is released so that the movable scraper can move up and down relative to the stirring blade 7. The user can hold the stirring rod 1 with one hand and hold the sleeve 2 on the stirring rod 1 with the other hand to push the sleeve 2 downward so that the sleeve 2 moves downward along the stirring rod 1, and the scraper 5 moves downward relative to the stirring blade 7 together with the sleeve 2. During the downward movement of the scraper 5, the mixture adhered to the stirring blade 7 is scraped downward, thereby avoiding the problem that the mixture is extremely difficult to remove after it is left to solidify. After the residue on the stirring blade 7 is scraped off by the scraper 5, the sleeve 2 is pulled upward, so that the sleeve 2 and the scraper 5 move upward synchronously to the initial position, that is, the position when the scraper 5 is against the anti-detachment portion 6, and then the locking mechanism is used to lock the stirring movable scraper to move relative to the stirring blade 7.

[0050] Embodiment 2

[0051] Figure 7-Figure 9 As shown, a stirring head with a scraping function comprises a stirring rod 1, to which a blade mounting frame 8 is fixedly connected, on which a plurality of stirring blades 7 for stirring are arranged, and on which a movable scraper is arranged. The stirring blade 7 is provided with a movable scraper, and the movable scraper can move relative to the stirring blade 7 so as to move and switch between a scraping starting position and a scraping ending position. An elastic member 25 for driving the movable scraper to move and reset is arranged on the stirring blade 7 or the stirring rod 1, and when the movable scraper is subjected to force and moves toward the scraping ending position relative to the stirring blade 7, the movable scraper scrapes off the residue on the stirring blade 7, and when the movable scraper loses force, the elastic member 25 drives the movable scraper to move relative to the stirring blade 7 and reset to the scraping starting position.

[0052] Preferably, the movable scraper is sleeved on the stirring blade 7 , and the movable scraper can move up and down relative to the stirring blade 7 .

[0053] After the mixture is stirred, the movable scraper can be moved relative to the stirring blade 7 to scrape off the residues stuck on the stirring blade 7 after stirring, so as to avoid the problem that the mixture is extremely difficult to remove after being left to solidify. After moving, the movable scraper can be driven to return automatically by the elastic member 25.

[0054] Preferably, the stirring blade 7 is a straight plate, and the stirring blade 7 is parallel to the stirring rod 1. Each stirring blade 7 has the same structure.

[0055] Figure 7 , Figure 8 As shown, preferably, a plurality of stirring blades 7 are arranged in a circular array with the stirring rod 1 as the center, and the stirring blades 7 have a stirring surface 10 for contacting the mixture to be stirred, and a point on the stirring surface 10 is connected with a point on the stirring rod 1 to form a vertical line 11 perpendicular to the stirring rod 1, and the vertical line 11 has an angle with the stirring surface 10, and the stirring surface 10 is not perpendicular to the vertical line 11, so that the stirring surface 10 is not in the radial direction of the stirring rod 1, and the angle is α.

[0056] Preferably, a plurality of stirring blades 7 pass through a movable scraper, and the movable scraper is sleeved on the stirring rod 1 and can move up and down along the stirring rod 1 .

[0057] Preferably, the blade mounting frame 8 is a mounting plate fixed to the bottom end of the stirring rod 1, and the movable scraper includes a scraper 5, which is sleeved on the stirring rod 1 and located above the mounting plate. The scraper 5 is parallel to the mounting plate, and a plurality of stirring blades 7 are located between the mounting plate and the scraper 5, and one end of the stirring blade 7 is connected to the mounting plate, and the other end of the stirring blade 7 passes through the scraper 5. The scraper 5 is provided with a through hole 9 for the stirring blade 7 to pass through. The scraper 5 is sleeved on all the stirring blades 7 through each through hole 9, and the scraper 5 can move up and down relative to the stirring blade 7. The upper end of the stirring blade 7 is fixed with an anti-slip portion 6 located above the scraper 5, and the anti-slip portion 6 is used to block the scraper 5 from above when it moves up to limit the scraper 5. The scraper 5 is fixed with a sleeve 2 located above the scraper 5, and the sleeve 2 is sleeved on the stirring rod 1 and can move up and down along the stirring rod 1.

[0058] Fig. 9 As shown, preferably, a threaded connection portion 23 is provided at the lower end of the stirring rod 1, and a first step 24 is formed between the threaded connection portion 23 and the outer wall of the stirring rod 1. A first center hole 21 is provided at the center of the mounting plate, and the mounting plate is sleeved on the threaded connection portion 23 through the first center hole 21. The mounting plate is threadedly connected to the threaded connection portion 23 through a fastening nut 22 to press the mounting plate tightly on the first step 24 and fix it to the stirring rod 1.

[0059] Preferably, the mounting plate includes a first inner ring plate 17, a first outer ring plate 15 and a plurality of first connecting plates 16, the first outer ring plate 15 is sleeved on the outside of the first inner ring plate 17, and the first inner ring plate 17 is concentric with the first outer ring plate 15, the first connecting plate 16 is arranged between the first outer ring plate 15 and the first inner ring plate 17, and the two ends of the first connecting plate 16 are respectively connected to the first inner ring plate 17 and the first outer ring plate 15, the center of the first inner ring plate 17 has a first center hole 21, and the lower ends of a plurality of stirring blades 7 are fixedly connected to the first outer ring plate 15.

[0060] Preferably, a plug-in block 19 is provided on the lower end surface of the stirring blade 7, and a plug-in hole 18 corresponding to the plug-in block 19 is provided on the first outer ring plate 15. The plug-in block 19 is inserted into the plug-in hole 18 and fixed to the first outer ring plate 15, and the lower end surfaces of the stirring blade 7 on both sides of the plug-in block 19 are against the upper surface of the first outer ring plate 15. The plug-in block 19 can be tightly plugged with the plug-in hole 18 on the first outer ring plate 15, or the plug-in block 19 and the first outer ring plate 15 are fixed by screws after being plugged, or the plug-in block 19 and the first outer ring plate 15 are fixed together by welding after being plugged. Existing conventional fixing methods are all applicable to this patent.

[0061] Preferably, the scraper 5 includes a second inner ring plate 12, a second outer ring plate 14 and a plurality of second connecting plates 13, the second outer ring plate 14 is sleeved on the outside of the second inner ring plate 12, and the second inner ring plate 12 is concentric with the second outer ring plate 14, the second connecting plate 13 is arranged between the second outer ring plate 14 and the second inner ring plate 12, and the two ends of the second connecting plate 13 are respectively connected to the second outer ring plate 14 and the second inner ring plate 12, a second center hole is provided in the center of the second inner ring plate 12 for the second inner ring plate 12 to be movably sleeved on the stirring rod 1, the above-mentioned sleeve 2 is fixed on the upper surface of the second inner ring plate 12, and the inner hole of the sleeve 2 is connected to the second center hole, and the above-mentioned through hole 9 is arranged on a circle of the second outer ring plate 14.

[0062] The shape of the through hole 9 is the same as the cross-section of the stirring blade 7, so that when the scraper 5 moves downward, the mixture adhering to the peripheral wall of the stirring blade 7 can be scraped downward through the lower edge of the through hole 9.

[0063] Preferably, the anti-detachment portion 6 is a baffle fixed to the upper end of the stirring blade 7 , and both ends of the baffle protrude from both sides of the stirring blade 7 to prevent the scraper 5 from moving upward and detaching from the stirring blade 7 .

[0064] Preferably, the elastic member 25 is a reset spring, and there are various structures for the reset spring, which are applicable to the present invention as long as they can achieve the functional effect of the present invention. For example:

[0065] One solution: a first connecting part is fixed on the outer wall of the sleeve 2, and a second connecting part opposite to the first connecting part is fixed on the outer wall of the stirring rod 1 above the sleeve 2. The reset spring is a tension spring, and the two ends of the tension spring are respectively connected to the first connecting part and the second connecting part. When the movable scraper moves downward along the stirring rod 1 to the scraping end position, the movable scraper stretches the tension spring to store force. When the user releases the movable scraper, the tension spring elastically resets and pulls the movable scraper upward to the scraping starting position.

[0066] Another scheme: the return spring is sleeved on the outside of the sleeve 2, and the upper end of the sleeve 2 is provided with an upper abutting portion that abuts against the return spring. First openings are opened on both sides of the sleeve 2, and the first openings extend upward along the length direction of the sleeve 2 and pass through the upper edge of the sleeve 2. A pin shaft is detachably fixed on the stirring rod 1, and the pin shaft passes through the stirring rod 1 and both ends protrude from both sides of the stirring rod 1. The two ends of the pin shaft pass through the first openings on both sides of the sleeve 2 respectively, and the two ends of the pin shaft are located below the return spring and abut against the lower end of the return spring. The first opening has a length for the pin shaft to slide relative to each other. When the movable scraper moves downward along the stirring rod 1 to the scraping end position, the upper abutting portion presses down the return spring to store force in the return spring. When the user releases the movable scraper member, the return spring acts on the upper abutting portion to push the movable scraper member to move up to the scraping starting position.

[0067] Another solution: the return spring is sleeved on the stirring rod 1 above the sleeve 2, and an upper limit portion 26 is provided on the stirring rod 1 above the sleeve 2. The lower end of the return spring abuts against the upper surface of the upper limit portion 26. The stirring rod 1 is movably sleeved with an upper abutment ring located above the return spring. The upper abutment ring is fixedly connected to the sleeve 2 through a connecting rod. The upper end of the return spring abuts against the upper abutment ring. When the movable scraper moves downward along the stirring rod 1 to the scraping end position, the upper abutment ring presses down the return spring to store force. When the user releases the movable scraper, the return spring acts on the upper abutment ring to push the movable scraper to move up to the scraping starting position.

[0068] Fig. 9As shown, another solution is as follows: a connecting sleeve 28 is sleeved on the stirring rod 1, and the connecting sleeve 28 can move up and down relative to the stirring rod 1. A cavity is provided in the connecting sleeve 28, and the stirring rod 1 passes through the cavity. A reset spring is arranged in the connecting sleeve 28 and sleeved on the stirring rod 1. A limiting portion located in the connecting sleeve 28 is provided on the stirring rod 1. The upper end of the reset spring abuts against the top inner wall of the cavity, and the lower end of the reset spring abuts against the upper limit portion 26. The connecting sleeve 28 is located above the sleeve 2, and a connecting cavity 29 is provided at the lower end of the connecting sleeve 28. The connecting cavity 29 is located below the cavity, the stirring rod 1 passes through the connecting cavity 29, an outer ring edge 27 is provided on the upper side wall of the sleeve 2, the outer ring edge 27 is inserted into the connecting cavity 29 and connected to the lower end of the connecting sleeve 28, so that the connecting sleeve 28 can move up and down with the sleeve 2, when the movable scraper moves down along the stirring rod 1 to the scraping end position, the connecting sleeve 28 moves down with the sleeve 2 and presses down the reset spring to make the reset spring accumulate force, when the user releases the movable scraper, the reset spring acts on the connecting sleeve 28 to push the movable scraper to move up to the scraping start position. Preferably, the connecting sleeve 28 includes a left half shell and a right half shell, the lower end of the left half shell is provided with a left card slot, the lower end of the right half shell is provided with a right card slot, the left half shell and the rear half shell are fixed by screws after being matched, and the left card slot and the right card slot are combined to form the above-mentioned connecting cavity 29 for the outer ring edge 27 to be inserted.

[0069] Preferably, when the scraper 5 moves upward against the anti-slip portion 6, this position is used as the scraping starting position of the movable scraper, and an upper limit portion 26 located above the sleeve 2 is provided on the stirring rod 1. When the movable scraper moves upward to the scraping starting position under the action of the spring member, the sleeve 2 just presses against the upper limit portion 26. A buffer member for contacting the sleeve 2 can be provided on the upper limit portion 26. When the return spring drives the movable scraper to move upward, the upper end of the sleeve 2 contacts the buffer member to buffer the impact force of the movable scraper moving upward, thereby avoiding damage to the parts. The buffer member can be a rubber member or a silicone member.

[0070] Figure 7 As shown, during stirring, the movable scraper is limited at the scraping starting position by the elastic member 25. At this time, the scraper 5 is located at the upper end of the stirring blade 7. The stirring rod 1 is connected to the power output device on the stirrer body. The stirring rod 1 is driven to rotate by the power output device of the stirrer. The stirring rod 1 drives the mounting plate, the scraper 5 and the stirring blade 7 to rotate together. At this time, the mounting plate and the scraper 5 serve as support frames at the upper and lower ends of the stirring blade 7 respectively to support the stirring blade 7. During the rotation of the stirring blade 7, the stirring surface 10 contacts the mixture to stir the mixture.

[0071] Figure 8As shown, when the stirring blade 7 needs to be scraped after stirring, the user can hold the stirring rod 1 with one hand and hold the sleeve 2 on the stirring rod 1 with the other hand to push the sleeve 2 downward. The movable scraper overcomes the elastic force of the elastic member 25 and moves downward along the stirring rod 1. The scraper 5 moves downward relative to the stirring blade 7. During the downward movement of the scraper 5, the mixture adhered to the stirring blade 7 is scraped downward, thereby avoiding the problem that the mixture is extremely difficult to remove after it is left to solidify. After the residue on the stirring blade 7 is scraped off by the scraper 5, the hand holding the sleeve 2 is released, and the elastic force of the elastic member 25 drives the movable scraper to move back to the scraping starting position, that is, the position when the scraper 5 is against the anti-slip portion 6.

[0072] The above is an introduction to the stirring head with scraping function provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A stirring head with a scraping function, characterized in that: The stirring rod comprises a stirring rod fixedly connected with a blade mounting frame, the blade mounting frame is provided with a plurality of stirring blades for stirring, the stirring blades are provided with movable scraping parts, the movable scraping parts and the stirring blades can move relative to each other to scrape off the residue on the stirring blades after stirring.

2. The stirring head with scraping function according to claim 1, characterized in that: The stirring blade is a straight plate, and the stirring blade is parallel to the stirring rod. The movable scraper is sleeved on the stirring blade and can move up and down relative to the stirring blade. A locking mechanism is provided between the movable scraper and the stirring rod or between the movable scraper and the stirring blade, and the locking mechanism can lock the movable scraper from moving relative to the stirring blade.

3. The stirring head with scraping function according to claim 2, characterized in that: A plurality of the stirring blades pass through the movable scraper, and the movable scraper is sleeved on the stirring rod and can move up and down along the stirring rod.

4. The stirring head with scraping function according to claim 3, characterized in that: The blade mounting frame is a mounting plate fixed to the bottom end of the stirring rod, and the movable scraper includes a scraper, which is sleeved on the stirring rod and located above the mounting plate. The scraper is parallel to the mounting plate, and a plurality of stirring blades are located between the mounting plate and the scraper, and a plurality of stirring blades pass through the scraper. The scraper is provided with a through hole for the stirring blades to pass through, and the scraper can move up and down relative to the stirring blade. An anti-slip portion located above the scraper is fixed to the upper end of the stirring blade, and the anti-slip portion is used to block the scraper from above when the scraper moves up, and a sleeve located above the scraper is fixed on the scraper, and the sleeve is sleeved on the stirring rod and can move up and down along the stirring rod.

5. The stirring head with scraping function according to claim 4, characterized in that: The locking mechanism includes a locking hole arranged on the sleeve and an elastic lock buckle arranged on the stirring rod. The elastic lock buckle can be retracted into the stirring rod after being pressed by force, and can be elastically reset after losing force. The elastic lock buckle is inserted into the locking hole to limit the relative movement of the sleeve and the stirring rod.

6. A stirring head with a scraping function, characterized in that: The invention comprises a stirring rod, which is fixedly connected with a blade mounting frame, wherein the blade mounting frame is provided with a plurality of stirring blades for stirring, and the stirring blade is provided with a movable scraper, which can move relative to the stirring blade so as to move and switch between a scraping starting position and a scraping ending position, and an elastic member for driving the movable scraper to move and reset is provided on the stirring blade or the stirring rod, and when the movable scraper is subjected to force and moves toward the scraping ending position relative to the stirring blade, the movable scraper scrapes off the residue on the stirring blade after stirring, and when the movable scraper loses force, the elastic member drives the movable scraper to move relative to the stirring blade and reset to the scraping starting position.

7. The stirring head with scraping function according to claim 6, characterized in that: The stirring blade is a straight plate, the stirring blade is parallel to the stirring rod, and the movable scraper is sleeved on the stirring blade and can move up and down relative to the stirring blade.

8. The stirring head with scraping function according to claim 7, characterized in that: A plurality of the stirring blades pass through the movable scraper, and the movable scraper is sleeved on the stirring rod and can move up and down along the stirring rod.

9. The stirring head with scraping function according to claim 8, characterized in that: The blade mounting frame is a mounting plate fixed to the bottom end of the stirring rod, and the movable scraper includes a scraper, which is sleeved on the stirring rod and located above the mounting plate. The scraper is parallel to the mounting plate, and a plurality of stirring blades are located between the mounting plate and the scraper, and a plurality of stirring blades pass through the scraper. The scraper is provided with a through hole for the stirring blades to pass through, and the scraper can move up and down relative to the stirring blade. An anti-slip portion located above the scraper is fixed to the upper end of the stirring blade, and the anti-slip portion is used to block the scraper from above when the scraper moves up, and a sleeve located above the scraper is fixed on the scraper, and the sleeve is sleeved on the stirring rod and can move up and down along the stirring rod.

10. The stirring head with scraping function according to claim 7, characterized in that: A plurality of stirring blades are arranged in a circular array with the stirring rod as the center. The stirring blades have a stirring surface for stirring. A point on the stirring surface is connected with a point on the stirring rod to form a vertical line perpendicular to the stirring rod. The vertical line has an angle with the stirring surface, and the stirring surface is not perpendicular to the vertical line.

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