Detachable stirring knife structure

Abstract

A detachable stirring knife structure comprises a base, a shaft hole is formed in the base, a shaft sleeve is rotationally arranged in the shaft hole, a stirring shaft is arranged in the shaft sleeve, a locking buckle plate capable of rotating relative to the shaft sleeve is arranged below the shaft sleeve, a locking groove with an opening in one side is formed in the locking buckle plate, and the locking buckle plate is provided with a locking groove with an opening in the other side. The lower end of the stirring shaft is provided with a necking located below the shaft sleeve, and the lower end of the necking is provided with a limiting piece; when the locking buckle plate rotates relative to the shaft sleeve, the necking part is gradually clamped into the locking groove. A transmission frame is fixedly installed at the lower end of the shaft sleeve, a transmission hole penetrating up and down is formed in the transmission frame, the stirring shaft is inserted into the transmission hole and extends to the position below the transmission frame, the necking down is located below the transmission frame, and the locking buckle plate is rotationally arranged on the transmission frame. The locking device has the advantages of being firm in locking and good in stability.

Description

Technical Field

[0001] The utility model relates to a detachable stirring blade structure. Background Art

[0002] Chinese patent document number CN218791916U on April 7, 2023 discloses a quick-install and quick-disassemble structure for a stirring tool, comprising a tool holder assembly with a stirring shaft, a base with a first through-hole, an intermediate connector with a second through-hole, and a rotating seat with a third through-hole, wherein a limiting hole connected to the third through-hole is provided in the rotating seat, an anti-slip elastic member is provided in the limiting hole, a limiting groove is provided on the outer wall of the other end of the stirring shaft, one end of the intermediate connector passes through the first through-hole and is inserted into the third through-hole to connect with the rotating seat, one end of the stirring shaft passes through the second through-hole and is inserted into the third through-hole, the anti-slip elastic member is snapped into or inserted into the limiting groove, the rotating seat is inserted into the drive seat and coupled thereto; the first through-hole, the second through-hole, and the third through-hole are coaxially arranged. The stirring shaft is provided with a driving portion with a non-circular cross-section, and the intermediate connector is provided with a positioning hole corresponding thereto, and the positioning hole is connected to the second through-hole.

[0003] Based on the above, the prior art uses an anti-slip elastic member that snaps into a limit groove to constrain the vertical position of the agitator shaft. The anti-slip elastic member is a latch with a return spring. Although this elastic latch structure can achieve the function of locking and limiting, the latch with a return spring makes assembly of the latch, second rotating seat, and bottom cover difficult, affecting assembly efficiency.

[0004] At the same time, the existing technology uses elastic constraints. Under strong forces, the reset spring can be easily compressed, causing the pin to separate from the limit groove. At this time, the stirring shaft is no longer constrained by the anti-slip elastic part, and the stirring shaft will move up and down, posing a safety hazard and requiring further improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a detachable stirring blade structure with good stability, so as to overcome the shortcomings of the prior art.

[0006] A detachable stirring blade structure designed for this purpose includes a base, an axial hole is provided on the base, a shaft sleeve is rotatably provided in the shaft hole, a stirring shaft is provided in the shaft sleeve, a locking buckle plate that can rotate relative to the shaft sleeve is provided below the shaft sleeve, a locking buckle plate is provided with a locking groove with an open side, the lower end of the stirring shaft is provided with a neck located below the shaft sleeve, and a limiting member is provided at the lower end of the neck; when the locking buckle plate rotates relative to the shaft sleeve, the neck gradually snaps into the locking groove.

[0007] Furthermore, a transmission frame is fixedly installed at the lower end of the sleeve, and a transmission hole is provided in the transmission frame which passes through the upper and lower parts. The stirring shaft is inserted into the transmission hole and extends to the bottom of the transmission frame. The neck is located below the transmission frame, and the locking plate is rotatably set on the transmission frame.

[0008] Furthermore, the transmission frame is provided with a first pin hole, the locking buckle plate is provided with a second pin hole, pin shafts are provided in the first pin hole and the second pin hole, and the locking buckle plate is rotatably provided relative to the transmission frame with the pin shaft as the rotating axis.

[0009] Furthermore, a protruding limiting column is provided on the transmission frame, and a limiting groove is provided on the locking buckle plate; when the neck is fully inserted into the locking groove, the limiting column is inserted into the limiting groove to form a limiting fit.

[0010] Furthermore, a first sealing member is provided in the shaft hole above the bearing and is in close contact with the outer wall of the sleeve.

[0011] Furthermore, a second sealing member is provided between the shaft sleeve and the outer wall of the stirring shaft.

[0012] Furthermore, a third sealing member is provided in the transmission hole and is in close contact with the outer wall of the stirring shaft.

[0013] Furthermore, a driving frame is provided below the transmission frame for coupling with the transmission frame to transmit power. The driving frame is sleeved on the outside of the transmission frame, and the locking plate is located on the inside of the driving frame.

[0014] Furthermore, a non-circular structure for driving the stirring shaft to rotate is provided on the shaft sleeve or the transmission frame, and the stirring shaft is provided correspondingly thereto.

[0015] Furthermore, a bearing is fixedly installed in the shaft hole, and the inner ring of the bearing is fixedly connected to the shaft sleeve.

[0016] Furthermore, the base is an electric heating chassis, and the upper end of the stirring shaft extends above the shaft sleeve and is equipped with a cutter.

[0017] Furthermore, the lower end surface of the locking buckle plate is in contact with the upper end surface of the limiting member.

[0018] The utility model provides a locking buckle plate which can be rotated relative to the shaft sleeve under the shaft sleeve, and a locking groove with an opening on one side is provided on the locking buckle plate, and the lower end of the stirring shaft is provided with a neck located below the shaft sleeve, and a limiting part is provided at the lower end of the neck; when the locking buckle plate is rotated relative to the shaft sleeve, the neck is clamped into the locking groove; by rotating the locking buckle plate, the locking buckle plate can be connected or separated with the neck by rotating relative to the shaft sleeve, so that the axial position of the stirring shaft can be locked or unlocked by the locking buckle plate. Compared with the existing anti-slip elastic part locking, it has better stability and when the stirring shaft needs to be disassembled, the locking buckle plate can be quickly unlocked, which is more convenient to operate.

[0019] In summary, the utility model has the characteristics of firm locking and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial cross-sectional structural diagram of an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the driven frame and the locking plate.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model after assembly.

[0024] Figure 5 Schematic diagram of the exploded structure of the stirring shaft and sleeve.

[0025] In the figure: 10 is the base, 100 is the shaft hole, 110 is the bearing, 120 is the first sealing member, 20 is the shaft sleeve, 21 is the non-circular cross-section hole, 30 is the stirring shaft, 310 is the necking, 320 is the limiter, 40 is the transmission frame, 400 is the transmission hole, 420 is the first pin hole, 50 is the locking buckle plate, 500 is the locking groove, 510 is the second pin hole, 520 is the limit groove, 60 is the drive frame, and 70 is the pin shaft. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] See also Figure 1-Figure 5A detachable stirring blade structure includes a base 10, wherein the base 10 is provided with an axial hole 100, a shaft sleeve 20 is rotatably arranged in the axial hole 100, a stirring shaft 30 is arranged in the shaft sleeve 20, a locking buckle plate 50 that can rotate relative to the shaft sleeve 20 is provided below the shaft sleeve 20, and a locking groove 500 with an opening on one side is provided on the locking buckle plate 50, the lower end of the stirring shaft 30 is provided with a neck 310 located below the shaft sleeve 20, and a limiting member 320 is provided at the lower end of the neck 310; when the locking buckle plate 50 rotates relative to the shaft sleeve 20, the neck 310 gradually snaps into the locking groove 500.

[0028] The utility model realizes the connection or separation with the neck by rotating the locking buckle plate which is arranged relative to the shaft sleeve.

[0029] The cross-sectional shape of the locking plate 50 is the same as that of the transmission frame 40 .

[0030] During assembly, the agitator shaft 30 is first inserted into the sleeve 20, and the locking groove 500 and the neck 310 are at the same height. Then, the locking plate 50 is rotated to gradually fit the neck 310 into the locking groove 500. In this state, the up and down movement of the agitator shaft can be restricted.

[0031] In order to prevent the stirring shaft 30 in the locked state from moving up and down, the lower end surface of the locking plate 50 can be fitted with the upper end surface of the limiting member 320.

[0032] When the agitator shaft in the locked state needs to be unlocked, the locking buckle plate is rotated in the opposite direction so that the neck of the agitator shaft disengages from the locking groove and the locking buckle plate completely moves away from above the limiter, and the constraint can be released. At this time, the agitator shaft can be taken out upward relative to the sleeve.

[0033] See also Figure 1 A transmission frame 40 is fixedly installed at the lower end of the sleeve 20, and a transmission hole 400 is provided in the transmission frame 40 that passes through the upper and lower parts. The stirring shaft 30 is inserted into the transmission hole 400 and the stirring shaft 30 extends to the bottom of the transmission frame 40. The neck 310 is located below the transmission frame 40, and the locking plate 50 is rotatably set on the transmission frame 40.

[0034] A driving frame 60 is provided below the transmission frame 40 for coupling with the transmission frame to transmit power. The driving frame 60 is sleeved on the outside of the transmission frame 40 , and the locking plate 50 is located on the inside of the driving frame 60 .

[0035] In practical applications, the driving frame 60 is connected to the power output shaft of the motor, and the rotation of the driving frame 60 can drive the transmission frame 40 to rotate.

[0036] See also Figure 2 and Figure 3 A first pin hole 420 is provided on the transmission frame 40, and a second pin hole 510 is provided on the locking buckle plate 50. A pin shaft 70 is provided in the first pin hole 420 and the second pin hole 510, and the locking buckle plate 50 is rotatably arranged relative to the transmission frame 40 with the pin shaft 70 as the rotating axis.

[0037] See also Figure 2 and Figure 3 The transmission frame 40 is provided with a protruding limiting column 410, and the locking plate 50 is provided with a limiting groove 520; when the neck 310 is fully inserted into the locking groove 500, the limiting column 410 is inserted into the limiting groove 520 to form a limiting fit. When the locking plate 50 is rotated to constrain the position of the stirring shaft 30, the limiting groove 520 and the limiting column 410 gradually approach each other. When the locking plate 50 is in a fully constrained state, the state Figure 3 As shown, the limiting column 410 is inserted into the limiting groove 520 .

[0038] See also Figure 1 A bearing 110 is fixedly installed in the shaft hole 100 , and the inner ring of the bearing 110 is fixedly connected to the shaft sleeve 20 .

[0039] In this embodiment, a first sealing member 120 is provided in the shaft hole 100 above the bearing 110 and is in close contact with the outer wall of the sleeve 20. The first sealing member 120 can effectively prevent liquid from penetrating into the shaft hole 100.

[0040] In this embodiment, a second sealing member is provided between the shaft sleeve 20 and the outer wall of the stirring shaft 30. The function of the second sealing member is to prevent liquid from penetrating downwards from between the shaft sleeve 20 and the stirring shaft 30.

[0041] In the present invention, a third sealing member is provided in the transmission hole 400 and is in close contact with the outer wall of the stirring shaft 30. The function of the second sealing member is to prevent liquid from penetrating downwards between the transmission hole 400 and the stirring shaft 30.

[0042] In this embodiment, the upper end of the stirring shaft 30 extends to above the shaft sleeve 20 and is equipped with a stirring blade.

[0043] In this embodiment, the base 10 can be an electric heating chassis with electric heating tubes, or a common chassis without electric heating tubes.

[0044] In this embodiment, the shaft sleeve 20 or the transmission frame 40 is provided with a non-circular structure for driving the stirring shaft 30 to rotate, and the stirring shaft 30 is provided correspondingly thereto. Figure 5Figure 2 shows the specific structure of the non-circular cross-section hole 21 provided on the sleeve 20. The non-circular cross-section hole 21 can be provided locally within the inner bore of the sleeve 20 or along the entire inner bore. Of course, the agitator shaft 30 is provided corresponding thereto. The purpose is to enable the agitator shaft 30 to rotate, either through the sleeve 20 or through the transmission frame 40, thereby achieving power transmission.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A detachable stirring blade structure, comprising a base (10), wherein the base (10) is provided with an axial hole (100), wherein a stirring shaft (30) is provided in the axial hole (100), wherein the stirring shaft (30) is provided, wherein the stirring blade structure comprises: A shaft sleeve (20) is rotatably arranged in the shaft hole (100), the stirring shaft (30) is arranged in the shaft sleeve (20), a locking plate (50) is arranged below the shaft sleeve (20), a locking groove (500) with an opening on one side is arranged on the locking plate (50), the lower end of the stirring shaft (30) is arranged with a neck (310) located below the shaft sleeve (20), and a limiting member (320) is arranged at the lower end of the neck (310); when the locking plate (50) rotates relative to the shaft sleeve (20), the neck (310) is gradually locked into the locking groove (500); A driving frame (60) is provided below the transmission frame (40) and is coupled therewith to transmit power. The driving frame (60) is sleeved on the outside of the transmission frame (40), and the locking plate (50) is located on the inside of the driving frame (60). The cross-sectional shape of the locking plate (50) is the same as that of the transmission frame (40).

2. The detachable stirring blade structure according to claim 1 is characterized in that A transmission frame (40) is fixedly mounted on the lower end of the shaft sleeve (20), and a transmission hole (400) is provided in the transmission frame (40) which passes through the transmission frame (40) from top to bottom. The stirring shaft (30) is inserted into the transmission hole (400) and the stirring shaft (30) extends to the bottom of the transmission frame (40), the neck (310) is located below the transmission frame (40), and the locking plate (50) is rotatably arranged on the transmission frame (40).

3. The detachable stirring blade structure according to claim 2 is characterized in that The transmission frame (40) is provided with a first pin hole (420), the locking buckle plate (50) is provided with a second pin hole (510), a pin shaft (70) is provided in the first pin hole (420) and the second pin hole (510), and the locking buckle plate (50) is rotatably arranged relative to the transmission frame (40) with the pin shaft (70) as a rotation axis.

4. The detachable stirring blade structure according to claim 2 or 3, characterized in that A protruding limiting column (410) is provided on the transmission frame (40), and a limiting groove (520) is provided on the locking buckle plate (50); when the neck (310) is completely inserted into the locking groove (500), the limiting column (410) is inserted into the limiting groove (520) to form a limiting fit.

5. The detachable stirring blade structure according to claim 1 is characterized in that A bearing (110) is fixedly installed in the shaft hole (100), and the inner ring of the bearing (110) is fixedly connected to the shaft sleeve (20).

6. The detachable stirring blade structure according to claim 5 is characterized in that A first sealing member (120) is provided in the shaft hole (100) above the bearing (110) and is in close contact with the outer wall of the shaft sleeve (20); a second sealing member is provided between the shaft sleeve (20) and the outer wall of the stirring shaft (30); and / or a third sealing member is provided in the transmission hole (400) and is in close contact with the outer wall of the stirring shaft (30).

7. The detachable stirring blade structure according to claim 2 is characterized in that The shaft sleeve (20) or the transmission frame (40) is provided with a non-circular structure for driving the stirring shaft (30) to rotate, and the stirring shaft (30) is provided correspondingly thereto.

8. The detachable stirring blade structure according to claim 1 is characterized in that The base (10) is an electric heating chassis, and the upper end of the stirring shaft (30) extends above the shaft sleeve (20) and is equipped with a stirring blade.

9. The detachable stirring blade structure according to claim 1 is characterized in that The lower end surface of the locking buckle plate (50) is in contact with the upper end surface of the limiting member (320).

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