JP3166999U - Stir bar for stirrer - Google Patents

Abstract

The present invention provides a stirring rod for a stirrer, which can stir a liquid in a container in a plurality of stages, and thus has excellent stirring efficiency. A pair of blade engagements, comprising a first flat surface (8a) and a second flat surface (8b) continuous at an angle with respect to the first flat surface (8a), are provided around the intermediate portion of the rotating shaft (1). The parts 8 and 8 are provided relative to each other. On the upper part of the first flat surface 8a of the blade engaging portion 8, the first and second flat surfaces 8a and 8b are formed by adjusting the twist angles of the flat base portion piece 3b and the front side piece 3a. A propeller-shaped intermediate-side blade plate 3 formed of an elongated plate and corresponding to an angle to be formed is pivotally attached to the base piece 3b by a pivot 9 so as to be swingable. Then, just above the intermediate portion-side blade plate 3 when it is swung about the pivot axis and disposed along the rotation axis 1, a base end edge or a longitudinal edge of each intermediate portion-side blade plate 3 is provided. One side edge along the direction is in contact with the lower surface to regulate swing in one direction around the pivot 9 and to provide a flange piece 10 for limiting swing in the other direction to a certain range. [Selection] Figure 2

Description

  The present invention relates to a stirrer for a stirrer that is used to stir a liquid in a container, for example, in order to take out the liquid in the container (for example, a drum can) in a uniform state.

  As a stirrer for a stirrer, it is arranged at the end of a round bar-shaped rotary shaft connected to the motor that is the driving source, along the rotary shaft when not in use, and when in use (during operation) There is known a structure in which a pair of propeller-shaped blades that can be freely changed in a transverse direction substantially orthogonal to the rotation axis are attached to each other (for example, Patent Document 1).

Japanese Utility Model Publication No. 63-32632

  Since the conventional structure adopts a configuration in which the base of the blade is attached to the tip of the rotating shaft via a hinge, when not in use, the blade is suspended in the vertical direction by its own weight, that is, downward. (In the direction along the longitudinal direction of the rotating shaft), and using this form, the container can also be used in a container such as a drum can with a narrow outlet (liquid pouring, discharging inlet). The blade is inserted through the outlet, and the blade is displaced from the vertical direction to the horizontal direction using the centrifugal force generated by the rotation of the rotation shaft (the rotation shaft is erected from the lying state) It has the advantage of being able to stir liquids.

  However, since the conventional example is provided with a blade plate only at the tip of the rotating shaft, the blade plate is moved up and down or not to stir the contents in the deep bottom container. However, there is an inconvenience of requiring a corresponding stirring time, and the improvement has been desired.

  Incidentally, the above-mentioned improvement can be achieved by providing a blade plate in a plurality of upper and lower stages on the rotating shaft. However, in the conventional example, since the blade plate is attached with a hinge, the blade plate is narrow on the rotating shaft. It is not practical to attach to the lower surface, and it is not a realistic idea to attach it to the peripheral side of the middle part of the round bar-shaped rotating shaft with a hinge.

  The present invention is intended to improve the inconvenience of the conventional example, and to provide a stirrer for a stirrer that can pass through a narrow space by changing the direction of the blades as in the conventional example. It has been issued.

  A pair of agitation blades pivoted at the base and undulated with respect to the pivot shaft is provided at the tip of a round rod-like pivot shaft that rotates in conjunction with a drive source such as an air motor. A stirrer for a stirrer, comprising a pair of a first flat surface and a second flat surface continuous with an angle with respect to the first flat surface on the circumferential side of the rotating shaft. A blade engaging portion is provided relative to each other, and the twist angles of the flat base side piece and the tip side piece on the first flat surface of the blade engaging portion are the first and second sides, respectively. A propeller-shaped intermediate blade blade made of a long plate that matches the angle formed by the flat surface of the base is pivotally mounted on the base side piece so as to be pivotable about the pivot, and is pivoted about the pivot. Directly above the intermediate side blades when placed in a state of being inclined with respect to the pivot shaft, the base edge or the longitudinal length of each intermediate side blade One side edge along the direction is in contact with the lower surface to regulate the swing in one direction around the pivot axis, the basic unit in that a flange piece for restricting the swing in the other direction.

  A stirrer stirrer that can be easily formed by forming a hook piece on the outer side of the rotary shaft and fixing the ring body to the rotary shaft with a screw. can get.

  According to the present invention, since the liquid stirring blades are provided at the tip and middle of the rotating shaft, the liquid in the container can be stirred in a plurality of stages, and thus stirring with excellent stirring efficiency. A stir bar for a machine can be provided. Moreover, since the intermediate side blades can be arranged in a lying state with respect to the rotation shaft along the rotation shaft in the same manner as the blades on the front side of the rotation shaft, Even if the liquid container has a narrow outlet for liquid and the liquid container is like a drum can, it cannot be inserted due to the expansion of the blade plate (standing up with respect to the rotating shaft), It is possible to provide a stirrer for a stirrer that does not impair the ease of use as in the conventional example.

Front view. The partially expanded view of FIG. The side view of FIG. Xx sectional view taken on the line of FIG. The cross-sectional view of a rotating shaft. The front view of the state at the time of stirring. FIG. 7 is a partially enlarged view of FIG. 6. BRIEF DESCRIPTION OF THE DRAWINGS FIG.

  The drawings show an embodiment of a stirrer for a stirrer according to the present invention, and a stirrer A of the embodiment has a pair of propeller blades 2, 2.3, 3 attached to the tip and the middle, respectively. A round bar-like rotation shaft 1 is provided, and the rear end portion of the joint rod 4 attached to the rear end portion of the rotation shaft 1 is an air motor 5 (which may be an electric motor but is easy to ignite a liquid such as a urethane raw material which is easily ignited). And a stirrer B in combination.

  The stirrer B of the embodiment rotates the rotating shaft 1 by the motor 5 when the liquid stored in the drum can (liquid container) 30 is uniformly taken out by the transfer pump 31, and the action causes It is used for rotating the blades 2 and 3 to stir the liquid W in the can.

  The pair of blades 2 and 2 on the distal end side of the rotating shaft 1 is composed of a tip part piece 2a and a base part piece 2b formed by twisting a long metal plate, and a base piece that overlaps each other. 2b and 2b are engaged with tip portions 1a and 1a which are formed in a bifurcated shape by forming a slit 7 at the tip of the rotating shaft 1, and the pivot 6 is connected to the rotating shaft 1 of the rotating shaft 1. The front piece 1a, 1a is pivotally attached to the rotary shaft 1 so as to be raised and lowered (swingable).

  Each vane plate 2, 2 is in one direction centered on the pivot 6 with one half side of the base end edge 2 b ′ (that is, the base end edge of the vane plate 2) of the base piece 2 b in contact with the inner wall 7 a of the slit 7. The other half side of the base end edge 2b ′ forms an arcuate edge a, and the other side is allowed to swing in the other direction. 2 b ″ is in contact with the inner wall 7 a so that it can be rotated and displaced with an angle width of 90 degrees. That is, the pair of slats 2 and 2 are arranged at symmetrical positions, and at the time of agitation, the tip ends from a lying state (a state along the rotation axis) to a standing state (a horizontal state) with respect to the rotation shaft 1. It rotates in the opposite direction to each other while maintaining the horizontal state (in association with the rotation of the rotating shaft 1).

  Then, a pair of vertically long blades comprising a first flat surface 8a and a second flat surface 8b continuous at an angle with respect to the first flat surface 8a on the circumferential side of the rotating shaft 1 Plate engaging portions 8 and 8 are provided relative to each other, and the blade plate 3 is pivotally attached to the upper portion of the first flat surface 8a of the blade plate engaging portions 8 and 8 so as to be able to swing (turn).

  The vane plate 3 is composed of a tip piece 3a and a base piece 3b formed by twisting a long metal plate in the same manner as the vane plate 2 attached to the tip side of the rotating shaft 1. The twist angle of the piece 3a and the base part piece 3b is a propeller shape substantially coincident with the angle formed by the first and second flat surfaces 8a and 8b, and the base part piece 3b is formed on the first flat surface 8a. A pivot 9 (in the embodiment, a bolt having a nut screwed to the tip) is swingably attached so as to overlap the surface.

  When the blades 3 and 3 on the intermediate side are rotated around the pivot 9 and arranged in the vertical direction (along the longitudinal direction of the rotation shaft 1), A restriction ring 10 constituting a collar piece is fixed with a screw 11 so as to be fitted on the outer side of the rotating shaft 1, and the lower surface 10 a of the restriction ring 10 is shaken of the blade plate 3 in the same manner as the inner wall 7 a of the slit 7. It functions as a regulating edge that regulates the movement, and the vane plate 3 is arranged in a positional relationship capable of displacing an angle of approximately 90 degrees from the vertical direction to the horizontal direction around the pivot 9.

  That is, the blades 3 and 3 at the intermediate portion of the rotating shaft 1 are in contact with the lower surface 10a of the regulating ring 10 on one half side of the edge 3b ′ of the piece 3b (that is, the base edge of the blade 3). Thus, the rocking (turning) motion in one direction around the pivot 9 is restricted, and the other half side of the base end edge 3b 'forms an arc edge b, and the rocking (turning) in the other direction with respect to the one is performed. The movement is allowed and the side edge 3b "can be displaced with an angular width of 90 degrees so as to contact the lower surface 10a.

  That is, as with the tip end side blades 2 and 2, the pair of intermediate blades 3 and 3 are arranged in symmetrical positions with each other from the state along the rotation shaft 1 (vertical state) to the rotation shaft. When the liquid in the tank 30 is agitated, the front ends thereof are directed in opposite directions to maintain the horizontal state and follow the rotating shaft 1. Rotate and perform the stirring operation.

  In the embodiment, the flange that regulates the swinging (turning) about the pivot 9 of the intermediate side blades 3 and 3 is screwed on the regulating ring 10 in consideration of the workability of assembling the stirring rod. 11 is fixed to the rotating shaft 1, but the important thing is that the base end edge 3 b ′ or the side edge 3 b ″ of the base end piece 3 b of the slat 3 is in contact with and regulates the movement. For example, the large-diameter portion may be provided on the rotating shaft 1 in a bowl shape, or the flange piece may be welded.

  When no force is applied from the outside, the front blades 2 and 2 are overlapped with the base piece 2b and 2b engaged in the slit 7, and are arranged along the longitudinal direction of the rotating shaft 1. The intermediate portion side slats 3 and 3 have the base piece 3b overlapped with the surface of the first flat surface 8a of the slat engagement portion 8 so that the longitudinal direction of the rotary shaft 1 is the same as that of the front side slats 2. And is located within the diameter of the flange 10 (within the projection of the flange 10), and can be inserted into the drum 30 through the outlet similarly to the flange 10 through the outlet of the drum 30. Yes.

  Then, when the stirring rod A is inserted into the drum can 30 and the air motor 5 installed via the connecting rod 4 is operated, the rotating shaft 1 rotates, and the blades 2 and 3 are centrifugally moved along with the rotation. The force acts and rises up with respect to the rotation shaft 1, that is, protrudes in the horizontal (lateral) direction, rotates, and can agitate the liquid in the drum can 30.

DESCRIPTION OF SYMBOLS 1 Rotating shaft 2 Front part side blade board 3 Middle part side blade board 3a Tip part piece 3b Base part piece 8 Blade | wing engaging part 8a First flat surface 8b Second flat surface 9 Axis

Claims (3)

  A pair of agitating blades pivotably attached to the tip of a round bar-like rotary shaft connected to a drive source such as an air motor at the base so as to swing up and down with respect to the rotary shaft are provided so as to freely swing. A stirrer for a stirrer, wherein an intermediate-side blade is pivotally attached to the periphery of the intermediate portion of the rotating shaft so as to be pivotable on the base-side piece, with respect to the rotating shaft. A stirrer bar for a stirrer provided with a pair of intermediate-side blades that undulate.   A pair of agitating blades pivotably attached to the tip of a round bar-like rotary shaft connected to a drive source such as an air motor at the base so as to swing up and down with respect to the rotary shaft are provided so as to freely swing. A stirrer for a stirrer, comprising a pair of blades comprising a first flat surface and a second flat surface continuous with an angle with respect to the first flat surface on the circumferential side of the rotating shaft An engaging portion is provided relative to each other, and the twist angles of the flat base side piece and the tip side piece on the first flat surface of the blade engaging portion are the first and second flat portions, respectively. A propeller-shaped intermediate blade plate made of a long plate, which coincides with the angle formed by the surface, is pivotally attached to the base side piece so as to be swingable about a pivot, and is swung around the pivot to make the above-mentioned One side edge along the longitudinal direction or the base end edge of each intermediate part side slat directly above the intermediate part side slat when placed along the rotation axis The lower surface in contact with restricting the swinging of the one-way around the pivot, provided with a collar piece that limits the swing in the other direction within a certain range, a stirring rod for agitator.   The stirrer for a stirrer according to claim 2, wherein a hook piece is constituted by a ring body fitted on the outer side of the rotating shaft, and the ring body is fixed to the rotating shaft with a screw.

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