Expanded paddle

Abstract

The utility model relates to an expanded paddle which is provided with a mounting ring, a mounting seat is fixedly arranged on the outer wall of the mounting ring, a connecting rod is rotatably arranged on the mounting seat, one end of the connecting rod is rotatably arranged on the mounting seat, and a stirring blade is detachably and fixedly arranged at the other end of the connecting rod; the connecting rod is provided with an inserting groove, a sliding groove is formed in the groove wall of the inserting groove, a limiting groove is formed in the groove wall of the sliding groove, a reset spring is arranged in the limiting groove, a limiting rod penetrating through the middle of the reset spring is arranged in the sliding groove in a sliding mode, the limiting rod is provided with a limiting end and a control end, and a pulling block is fixedly arranged at the control end of the limiting rod. A limiting plate is fixedly arranged in the middle of the limiting rod, a limiting hole capable of being in insertion fit with the limiting rod is formed in the stirring blade, and the stirring blade is detachably installed on the connecting rod through insertion fit with the insertion groove, the elastic force effect of the reset spring on the limiting plate and insertion fit between the limiting rod and the limiting hole; according to the utility model, the blades can be quickly replaced, and the speed and efficiency are high.

Description

Technical Field

[0001] This utility model relates to an unfolding blade. Background Technology

[0002] Deployable blades are a special blade design characterized by the ability to expand or contract the blades, thereby changing their length, area, or shape. When used in containers with small inlets, contracted blades can easily enter and then expand within the container to perform stirring.

[0003] When used in highly corrosive liquids or environments that may wear down the blades, individual blades may wear down or even be damaged after prolonged use. Disassembling and replacing the entire blade assembly would increase operating costs and waste resources.

[0004] We now need deployable blades that allow for individual blade replacement. Summary of the Invention

[0005] The purpose of this invention is to provide an expandable blade that allows for quick and efficient blade replacement.

[0006] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a mounting ring; multiple mounting seats are fixedly arranged circumferentially with the center of the mounting ring as the origin on the outer wall of the mounting ring; a connecting rod is rotatably mounted on the mounting seat; one end of the connecting rod is rotatably mounted on the mounting seat; and a stirring blade is detachably fixed to the other end of the connecting rod; a slot is provided on the end of the connecting rod where the stirring blade is detachably fixed, allowing the stirring blade to be inserted to form a plug-in fit; the slot wall has at least one sliding groove communicating with the outside; a limiting groove is provided on the wall of the sliding groove, concentrically arranged with the sliding groove; a return spring is provided in the limiting groove; and one end of the return spring is fixedly mounted on the limiting groove. On the side of the groove facing outward, the other end of the return spring extends toward the side of the limiting groove facing the slot. A limiting rod is slidably provided in the sliding groove, passing through the middle of the return spring. The limiting rod has a limiting end extending toward the slot and a control end extending outward. A pulling block is fixedly provided on the control end of the limiting rod. A limiting plate is fixedly provided in the middle of the limiting rod, which can act on the end of the return spring extending toward the side of the limiting groove facing the slot. The stirring blade is provided with a limiting hole that can be inserted into the limiting rod. The stirring blade is detachably mounted on the connecting rod through the insertion into the slot, the elastic force of the return spring on the limiting plate, and the insertion into the limiting rod and the limiting hole.

[0007] Furthermore, the mounting base has mounting plates and mounting rods. Two mounting plates are symmetrically fixed on the mounting ring. Each mounting plate has a through hole for the mounting rod to pass through, and the through holes on the two mounting plates are opposite each other. Both ends of the mounting rod are located within the through holes of the two mounting plates and extend out of their respective through holes. One end of the mounting rod is fixedly fitted with a baffle acting on the mounting plate, and the other end of the mounting rod is detachably fitted with an elastic retaining ring acting on the mounting plate. The mounting rod is detachably fixed between the two mounting plates by the elastic retaining ring and the baffle. A rotating sleeve is fixedly fitted onto the mounting rod at one end of the connecting rod, forming a rotatable engagement with the mounting rod. The connecting rod is rotatably mounted on the mounting base through the rotatable engagement of the rotating sleeve and the mounting rod.

[0008] Furthermore, a limiting baffle is provided. The limiting baffle is fixed between two symmetrically arranged mounting plates. The connecting rods on each mounting base hang downwards towards the lower end of the mounting plate under the action of gravity. The two ends of the limiting baffle are respectively fixed at the upper ends of the two mounting plates. The limiting baffle can contact the connecting rod and form a limiting fit with the connecting rod. The connecting rod is rotated and limited by the limiting action of the limiting baffle.

[0009] Furthermore, multiple sliding grooves are provided, which extend along the extension direction of the connecting rod. Each groove is provided with the aforementioned limiting groove, limiting rod, return spring, and limiting plate. Each limiting rod is provided with the aforementioned pulling block, and the pulling blocks of two adjacent limiting rods are fixedly connected to each other.

[0010] Furthermore, the slot is rectangular, with its short side connected to the outside. The stirring blade has a plug-in end that engages with the slot and an extension end that extends away from the slot. The plug-in end of the stirring blade is provided with a positioning groove for engaging with the slot and for guiding the engagement. The limiting hole is located in the positioning groove, and the limiting hole corresponds to the sliding groove after the plug-in end of the stirring blade engages with the slot.

[0011] Furthermore, the insertion end of the stirring blade is a wide end, the extension end of the stirring blade is a narrow end, and the cross-section of the stirring blade is twisted.

[0012] The present invention has the following positive effects: (1) The stirring blade of the present invention is provided with a limiting hole that can be inserted into the limiting rod. The stirring blade can be detachably installed on the connecting rod by inserting into the slot, the elastic force of the return spring on the limiting plate, and the insertion of the limiting rod into the limiting hole. The insertion of the stirring blade into the slot and the pushing of the limiting plate on the return spring cause the limiting rod to disengage from the limiting hole, thus quickly disassembling the stirring blade. The insertion of the stirring blade into the slot and the pushing of the return spring on the limiting plate cause the limiting rod to form an insertion into the limiting hole, thus quickly installing the stirring blade. This is efficient and fast, and the stirring blade can be replaced after it is damaged.

[0013] (2) The connecting rod of this utility model is rotatably mounted on one end of the mounting base and is fixedly provided with a rotating sleeve that can be sleeved on the mounting rod and forms a rotatable fit with the mounting rod. The connecting rod is rotatably mounted on the mounting base through the rotatable fit between the rotating sleeve and the mounting rod. The rotation of the rotating sleeve makes the connecting rod more stable when rotating. At the same time, the mounting rod can be disassembled from the mounting plate by removing the elastic retaining ring, so as to disassemble, replace and repair the connecting rod and the rotating sleeve.

[0014] (3) The present invention is also provided with a limiting baffle. The limiting baffle is fixed between two symmetrically arranged mounting plates. The connecting rods on each mounting base fall downwards towards the lower end of the mounting plate under the action of gravity. The two ends of the limiting baffle are respectively fixed at the upper ends of the two mounting plates. The limiting baffle can contact the connecting rod and form a limiting fit with the connecting rod. The connecting rod is rotated by the limiting effect of the limiting baffle. The limiting baffle can be placed after the connecting rod is unfolded by centrifugal force to form over-rotation, which is convenient for stirring.

[0015] (4) The insertion end of the stirring blade of this utility model is a wide end, the extension end of the stirring blade is a narrow end, and the cross-section of the stirring blade is twisted. The twisted shape of the stirring blade can guide the liquid flow and provide a thrust to assist the stirring blade in unfolding when the stirring blade moves in the liquid, so that the stirring blade can unfold better and more easily when the external drive device rotates at low speed. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3This is a cross-sectional view of the assembly structure of the rotating sleeve and the mounting rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the stirring blade of this utility model;

[0021] Figure 5 This is a cross-sectional view of the connecting rod of this utility model.

[0022] In this diagram, the components are: 1. Mounting ring; 2. Mounting base; 21. Mounting plate; 22. Mounting rod; 22. Baffle; 221. Elastic retaining ring; 222. Connecting rod; 3. Rotating sleeve; 31. Stirring blade; 4. Limiting hole; 41. Positioning groove; 42. Slot; 5. Sliding groove; 51. Limiting groove; 52. Return spring; 6. Limiting rod; 7. Pulling block; 71. Limiting plate; 72. Limiting baffle; 8. Detailed Implementation

[0023] See Figures 1 to 5 This utility model includes an installation ring 1; multiple mounting seats 2 are fixedly arranged circumferentially around the center of the installation ring 1 on the outer wall of the installation ring 1; a connecting rod 3 is rotatably mounted on the mounting seat 2; one end of the connecting rod 3 is rotatably mounted on the mounting seat 2, and the other end of the connecting rod 3 is detachably fixed with a stirring blade 4; a slot 5 is provided on the end of the connecting rod 3 where the stirring blade 4 is detachably fixed, allowing the stirring blade 4 to be inserted to form a plug-in fit; the slot 5 has at least one sliding groove 51 communicating with the outside on its wall; a limiting groove 52 is provided on the wall of the sliding groove 51, concentrically arranged with the sliding groove 51; a return spring 6 is provided in the limiting groove 52, and one end of the return spring 6 is fixedly mounted on the side of the limiting groove 52 facing outward. The other end of the return spring 6 extends toward the side of the limiting groove 52 toward the slot 5. A limiting rod 7 passing through the middle of the return spring 6 is slidably provided in the sliding groove 51. The limiting rod 7 has a limiting end extending toward the slot 5 and a control end extending toward the outside. A pulling block 71 is fixedly provided on the control end of the limiting rod 7. A limiting plate 72 that can act on the end of the return spring 6 extending toward the side of the limiting groove 52 toward the slot 5 is fixedly provided in the middle of the limiting rod 7. The stirring blade 4 is provided with a limiting hole 41 that can form a plug-in fit with the limiting rod 7. The stirring blade 4 is detachably installed on the connecting rod 3 through the plug-in fit with the slot 5, the elastic force of the return spring 6 on the limiting plate 72, and the plug-in fit between the limiting rod 7 and the limiting hole 41.

[0024] The limiting rod 7 always slides toward the slot 5 under the elastic force of the reset spring 6.

[0025] Mounting base 2 has mounting plates 21 and mounting rods 22. There are two mounting plates 21, which are symmetrically fixed on mounting ring 1. Each mounting plate 21 has a through hole for the mounting rod 22 to pass through. The through holes on the two mounting plates 21 are arranged opposite to each other. The two ends of the mounting rod 22 are located in the through holes of the two mounting plates 21 and extend out of the through holes. One end of the mounting rod 22 is fixedly provided with a baffle 221 that acts on the mounting plate 21. The other end of the mounting rod 22 is detachably fixedly provided with an elastic retaining ring 222 that acts on the mounting plate 21. The mounting rod 22 is detachably fixed between the two mounting plates 21 by the elastic retaining ring 222 and the baffle 221. The connecting rod 3 is rotatably mounted on the mounting base 2. A rotating sleeve 31 is fixedly provided on one end of the connecting rod 3 that can be sleeved on the mounting rod 22 and forms a rotatable engagement with the mounting rod 22. The connecting rod 3 is rotatably mounted on the mounting base 2 by the rotatable engagement of the rotating sleeve 31 and the mounting rod 22.

[0026] A limiting baffle 8 is also provided. The limiting baffle 8 is fixedly provided between two symmetrically arranged mounting plates 21. The connecting rods 3 on each mounting base 2 fall downwards towards the lower end of the mounting plate 21 under the action of gravity. The two ends of the limiting baffle 8 are respectively fixedly provided at the upper ends of the two mounting plates 21. The limiting baffle 8 can contact the connecting rods 3 and form a limiting cooperation with the connecting rods 3. The connecting rods 3 are rotated and limited by the limiting action of the limiting baffle 8.

[0027] Multiple sliding grooves 51 are provided, and the multiple sliding grooves 51 extend along the extension direction of the connecting rod 3. Each slot 5 is provided with the aforementioned limiting groove 52, limiting rod 7, reset spring 6 and limiting plate 72. Each limiting rod 7 is provided with the aforementioned pulling block 71, and the pulling blocks 71 of two adjacent limiting rods 7 are fixedly connected to each other.

[0028] The insertion and engagement of multiple limiting rods 7 with corresponding limiting holes 41 makes the insertion and installation of the stirring blade 4 more stable.

[0029] The slot 5 is rectangular, with its short side connected to the outside. The stirring blade 4 has a plug-in end that engages with the slot 5 and an extension end that extends away from the slot 5. The plug-in end of the stirring blade 4 is provided with a positioning groove 42 for engaging with the slot 5 and for guiding the engagement. The limiting hole 41 is provided in the positioning groove 42. After the plug-in end of the stirring blade 4 engages with the slot 5, the limiting hole 41 corresponds to the sliding groove 51.

[0030] The insertion end of the stirring blade 4 is a wide end, the extension end of the stirring blade 4 is a narrow end, and the cross-section of the stirring blade 4 is twisted; the slot 5 forms a 45° angle with the horizontal line, the insertion end of the stirring blade 4 is fixed, the middle part of the stirring blade 4 is twisted clockwise, and the extension end of the stirring blade 4 is bent counterclockwise to form a raised edge.

[0031] When the mounting ring 1 comes into contact with the liquid as the external drive device rotates, the liquid can provide the stirring blade 4 with a clockwise twisting thrust in the middle, making the stirring blade 4 more easily unfold. The twist angle, also known as the blade angle or torsion angle, refers to the angle between the chord line of the stirring blade 4 and the plane of rotation. This angle gradually changes along the radial direction of the stirring blade 4. The twist angle design optimizes the angle of attack distribution of the stirring blade 4, enabling the stirring blade 4 to utilize fluid energy more efficiently during rotation.

[0032] The working principle of this utility model is as follows: The installation ring 1 is mounted on the drive rod of the external drive device. When the stirring blade 4 needs to be replaced, the pulling block 71 on the limiting rod 7 is pulled. The pulling block 71 causes the limiting plate 72 on the limiting rod 7 to compress the return spring 6. The limiting rod 7 is pulled by the pulling rod and slides within the sliding groove 51. During the sliding process, the limiting rod 7 disengages from the insertion fit with the limiting hole 41. At this time, the stirring blade 4 can be removed from the slot 5 for replacement. When installing the stirring... When the blade 4 is in position, pull the pull block 71 on the limit rod 7. The pull block 71 drives the limit plate 72 on the limit rod 7 to squeeze the return spring 6. The limit rod 7 is pulled by the pull rod and slides in the sliding groove 51. Insert the new stirring blade 4 into the slot 5. Release the pull on the pull block 71. The return spring 6 drives the limit plate 72 to slide the limit rod 7 toward the inside of the slot 5. The limit rod 7 and the limit hole 41 in the positioning groove 42 form a plug-in fit, so that the new stirring blade 4 can be installed.

[0033] When the rotating sleeve 31 is obstructed from rotation, remove the elastic retaining ring 222 on the mounting rod 22, and remove the mounting rod 22 from the mounting plate 21 by cooperating with the through hole. At this time, the rotating sleeve 31 can be removed from the mounting plate 21.

[0034] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deployable blade having a mounting ring (1); characterized in that: Multiple mounting seats (2) are fixedly arranged in a uniform circle with the center of the mounting ring (1) as the origin on the outer wall of the mounting ring (1). A connecting rod (3) is rotatably mounted on the mounting seat (2). One end of the connecting rod (3) is rotatably mounted on the mounting seat (2), and the other end of the connecting rod (3) is detachably fixed with a stirring blade (4). The end of the connecting rod (3) with the detachably fixed stirring blade (4) is provided with a slot (5) for the stirring blade (4) to be inserted to form a plug-in fit. The groove wall of the slot (5) is provided with at least one sliding groove (51) communicating with the outside. The groove wall of the sliding groove (51) is provided with a limiting groove (52) concentrically set with the sliding groove (51). A return spring (6) is provided in the limiting groove (52). One end of the return spring (6) is fixedly mounted on the side of the limiting groove (52) facing the outside. The other end extends toward the side of the limiting groove (52) toward the slot (5). A limiting rod (7) that passes through the middle of the reset spring (6) is slidably provided in the sliding groove (51). The limiting rod (7) has a limiting end that extends toward the slot (5) and a control end that extends toward the outside. A pulling block (71) is fixedly provided on the control end of the limiting rod (7). A limiting plate (72) that can act on the end of the reset spring (6) that extends toward the side of the limiting groove (52) toward the slot (5) is fixedly provided in the middle of the limiting rod (7). The stirring blade (4) is provided with a limiting hole (41) that can be inserted into the limiting rod (7). The stirring blade (4) can be detachably installed on the connecting rod (3) through the insertion into the slot (5), the elastic force of the reset spring (6) on the limiting plate (72), and the insertion into the limiting rod (7) and the limiting hole (41).

2. The deployable blade according to claim 1, characterized in that: The mounting base (2) has a mounting plate (21) and a mounting rod (22). There are two mounting plates (21), which are symmetrically fixed on the mounting ring (1). Both mounting plates (21) have through holes through which the mounting rod (22) can pass. The through holes on the two mounting plates (21) are arranged opposite to each other. The two ends of the mounting rod (22) are located in the through holes of the two mounting plates (21) and extend out of the through holes. One end of the mounting rod (22) is fixedly provided with a baffle (221) that acts on the mounting plate (21). The other end of the mounting rod (22) A detachable fixed sleeve is provided with an elastic retaining ring (222) that can act on the mounting plate (21). The mounting rod (22) is detachably fixed between the two mounting plates (21) by the sleeve of the elastic retaining ring (222) and the action of the baffle (221). The connecting rod (3) is rotatably mounted on one end of the mounting base (2) and is fixed with a rotating sleeve (31) that can be sleeved on the mounting rod (22) and forms a rotatable fit with the mounting rod (22). The connecting rod (3) is rotatably mounted on the mounting base (2) by the rotatable fit between the rotating sleeve (31) and the mounting rod (22).

3. The deployable blade according to claim 2, characterized in that: A limiting baffle (8) is also provided. The limiting baffle (8) is fixed between two symmetrically arranged mounting plates (21). The connecting rod (3) on each mounting seat (2) hangs down towards the lower end of the mounting plate (21) under the action of gravity. The two ends of the limiting baffle (8) are respectively fixed at the upper ends of the two mounting plates (21). The limiting baffle (8) can form contact with the connecting rod (3) and form a limiting cooperation with the connecting rod (3). The connecting rod (3) forms a rotation limit through the limiting action of the limiting baffle (8).

4. The deployable blade according to claim 1, characterized in that: The sliding groove (51) is provided in multiple ways. The multiple sliding grooves (51) extend along the extension direction of the connecting rod (3). Each slot (5) is provided with the limiting groove (52), the limiting rod (7), the reset spring (6) and the limiting plate (72). Each limiting rod (7) is provided with the pulling block (71). The pulling blocks (71) of two adjacent limiting rods (7) are fixedly connected to each other.

5. The deployable blade according to claim 1, characterized in that: The slot (5) is rectangular, and the short side of the slot (5) is connected to the outside. The stirring blade (4) has a plug-in end that forms a plug-in fit with the slot (5) and an extension end away from the slot (5). The plug-in end of the stirring blade (4) is provided with a positioning groove (42) for forming a plug-in fit with the slot (5) and for guiding the plug-in fit with the slot (5). The limiting hole (41) is provided in the positioning groove (42). After the plug-in end of the stirring blade (4) forms a plug-in fit with the slot (5), the limiting hole (41) corresponds to the sliding groove (51).

6. The deployable blade according to claim 5, characterized in that: The insertion end of the stirring blade (4) is a wide end, the extension end of the stirring blade (4) is a narrow end, and the cross-section of the stirring blade (4) is twisted.

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