Detachable door type stirring paddle structure of reaction kettle

The design of threaded connection and locking mechanism enables the detachable stirring blade and the length adjustment of the stirring rod, solving the problem of fixed size of existing stirring paddles and improving the flexibility and adaptability of the stirring blade.

CN224127256UActive Publication Date: 2026-04-17GUANGDONG LIFENG HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LIFENG HEAVY IND CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing mixing blades have a fixed size when disassembled and reinstalled, making it impossible to select other sizes of mixing blades for use depending on the situation, which is not practical.

Method used

The upper and lower main rods are connected by threads, combined with a sliding ring and a locking mechanism, to achieve detachable stirring blades and adjustable stirring rod length. The sliding ring releases the locking mechanism, the slide bar disengages from the fixing groove, and the U-shaped frame pushes the upper and lower main rods to rotate and adjust the length.

Benefits of technology

It enables easy disassembly and replacement of the stirring blades, can be adapted to stirring blades of different sizes, and can adjust the stirring position, thus improving the flexibility and adaptability of stirring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable door type stirring paddle structure of a reaction kettle, and belongs to the technical field of chemical equipment. Aiming at the problem that stirring blades in different sizes cannot be replaced after being detached in the prior art, the structure provides an improved scheme consisting of a length-adjustable stirring rod and a detachable stirring blade, the stirring rod adopts an upper main rod and a lower main rod which are in threaded connection, and the outer wall of the lower main rod is sleeved with a gate-type stirring blade and is matched with a fixing groove through a sliding strip to realize axial locking; the locking state of the sliding strip is controlled through axial movement, and the locking mechanism synchronously integrates a rod body length adjusting function: an abutting rod is arranged on the inner wall of the sliding ring and pushes the U-shaped frame to be separated from a connecting clamping groove of the upper main rod and the lower main rod when moving upwards, so that the two sections of rod bodies can rotate relatively to adjust the total length, and the overall length is adjusted. The structure realizes the dual functions of dismounting and mounting the stirring blades and adjusting the length of the rod body through single operation of the sliding circular ring, and is suitable for reaction kettle equipment which needs to replace gate-type stirring blades of different specifications or adjust the stirring depth.
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Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a detachable reactor door-type stirring paddle structure. Background Technology

[0002] A reaction vessel is a closed container used to realize physical or chemical reactions. It has various applications. Specifically, it promotes the mixing, heat transfer, mass transfer and chemical reaction of reactants by providing a controllable reaction environment (such as temperature, pressure, stirring speed, etc.) to ultimately obtain the target product. The internal stirring blade is used to stir and mix the raw materials. The gantry stirring blade is a type of stirrer. Its blade outer edge shape is highly matched with the inner wall of the reaction vessel to form a very small gap, which can effectively remove sticky materials or deposits adhering to the vessel wall, while ensuring the uniformity of mixing.

[0003] Most existing mixing paddles on the market are installed by connecting the mixing blades to the mixing rod with bolts or welding. Some are detachable mixing paddles for easy disassembly and replacement when damaged. However, their effectiveness is generally limited. For example, although they can be disassembled, the reinstalled size is fixed, and it is not possible to select other sizes of mixing blades for different situations. There is still room for improvement in terms of practicality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where, although the blades can be disassembled, the reinstallation dimensions are fixed, preventing the selection of different sizes of stirring blades depending on the situation. Therefore, this invention proposes a detachable reactor door-type stirring blade structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detachable reactor door-type stirring paddle structure includes a stirring rod, which is composed of an upper main rod and a lower main rod connected by threads, and the upper main rod is provided with a flange ring at its top end;

[0007] A portal-type stirring blade is slidably sleeved onto the outer wall of the lower main rod, and its inner wall is provided with multiple fixing grooves.

[0008] The locking mechanism includes a slide bar that is slidably disposed inside the lower main rod, the lower end of the slide bar being detachably engaged with the fixing groove, and the upper end of the slide bar having a latch.

[0009] A sliding ring is sleeved on the outer wall of the lower main rod and engaged with the bayonet. When the sliding ring moves axially, it disengages from the bayonet to release the limiting effect on the slide bar.

[0010] When the sliding ring moves upward and disengages from the latch, the slide bar is pressed out of the fixed groove by an external force, and the portal stirring blade is unlocked from the lower main rod.

[0011] In one possible design, a U-shaped frame is provided inside the upper main rod, with one end of the U-shaped frame extending into a slot at the top of the lower main rod;

[0012] The abutment rod is fixed to the inner wall of the sliding ring. When the sliding ring moves upward, the abutment rod pushes the U-shaped frame out of the slot. The upper main rod and the lower main rod can rotate relative to each other to adjust the length.

[0013] In one possible design, one end of multiple U-shaped frames is fixedly connected to the same connecting ring, and the abutment abuts against the connecting ring to synchronously drive the multiple U-shaped frames.

[0014] In one possible design, the lower main rod has a lower inner cavity, the slide bar is slidably disposed in the lower inner cavity, and is elastically connected to the inner wall of the lower inner cavity by a compression spring.

[0015] In one possible design, the upper main rod has an upper inner cavity, the U-shaped frame is slidably disposed in the upper inner cavity, and is elastically connected to the inner wall of the upper inner cavity by a second compression spring.

[0016] In one possible design, the flange ring is integrally formed with the upper main rod for connecting the drive unit.

[0017] In this application, during actual use, by sliding the sliding ring upwards and disengaging it from the inside of the slot, the slide bar will be released from its fixed state. At this time, pressing the slide bar inwards will cause the lower end of one side of the slide bar to disengage from the inside of the fixing groove, thereby releasing the fixation of the portal agitator blade and allowing it to be removed for replacement. When replacing with portal agitator blades of other sizes, or to adapt to reactors of different depths and adjust the stirring position, the sliding ring is also moved upwards, causing the abutment rod on its inner wall to move upwards as well. The top of the abutment rod will push one end of the U-shaped frame to move. When the other end of the U-shaped frame disengages from the inside of the slot, the upper and lower main rods will be released from their fixed state. At this time, they can be rotated to allow relative displacement between them, thereby lengthening or shortening them to achieve the effect of length adjustment.

[0018] In this utility model, the detachable reactor door-type stirring blade structure allows for the individual disassembly of the stirring blade, enabling quick and convenient operation when it is damaged or needs to be replaced.

[0019] In this utility model, the detachable reactor door-type stirring paddle structure, through the locking mechanism, can achieve both the installation and fixation of the stirring blade, and the length adjustment and fixation of the stirring rod, thus increasing its flexibility and enabling it to be used better according to actual conditions.

[0020] In this invention, the gate-type stirring blades can be easily disassembled for replacement or repair, and their length can be adjusted to accommodate different sizes of gate-type stirring blades. The position of the gate-type stirring blades can also be adjusted to regulate the stirring position. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a detachable reactor door-type stirring paddle structure proposed in this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of a detachable reactor door-type stirring paddle structure proposed in this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the structure of part A in the middle.

[0024] In the diagram: 1. Upper main rod; 2. Lower main rod; 3. Portal stirring blade; 4. Flange ring; 5. Sliding ring; 6. Bayonet; 7. Sliding bar; 8. Lower inner cavity; 9. No. 1 compression spring; 10. Fixing groove; 11. Upper inner cavity; 12. U-shaped frame; 13. Support rod; 14. Slot; 15. Connecting ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Reference Figure 1 A stirring paddle structure, comprising:

[0028] The stirring rod consists of an upper main rod 1 and a lower main rod 2. The upper main rod 1 has a flange ring 4 at its top end for connecting to the drive device. The lower main rod 2 is threaded onto the lower end of the outer wall of the upper main rod 1.

[0029] A portal-type stirring blade 3 is slidably sleeved on the outer wall of the lower main rod 2, and multiple fixing grooves 10 are opened on its inner wall.

[0030] Reference Figure 2-3The locking mechanism consists of two parts, which respectively fix the upper main rod 1 and the lower main rod 2, as well as the lower main rod 2 and the gate-type stirring blade 3.

[0031] Reference Figure 2 Regarding the locking of the lower main rod 2 and the portal agitator blade 3:

[0032] Multiple lower cavities 8 are opened inside the lower main rod 2, and a slide bar 7 is slidably installed in each lower cavity 8. Both ends of one side of the slide bar 7 extend to the outside of the lower main rod 2, and its lower end cooperates with the fixing groove 10 for initial fixation of the lower main rod 2 and the gate-type stirring blade 3, while the upper end is provided with a retaining slot 6.

[0033] The sliding ring 5 is fitted onto the outer wall of the lower main rod 2 and embedded in the bayonet 6. By moving the sliding ring 5 axially, when it is inside the bayonet 6, the slide bar 7 can be limited to prevent displacement and ensure the stability of the lower main rod 2 and the gate-type stirring blade 3.

[0034] A compression spring 9 is installed between the inner wall of one side of the lower inner cavity 8 and the slide bar 7 to provide the restoring force of the slide bar 7.

[0035] Specifically, by sliding the sliding ring 5 upwards and disengaging it from the inside of the latch 6, the slide bar 7 will be released from its fixed state. At this time, pressing the slide bar 7 inwards will cause the lower end of one side of the slide bar 7 to disengage from the inside of the fixing groove 10, thereby releasing the fixation of the gate-type stirring blade 3, allowing it to be removed for replacement and other operations.

[0036] Reference Figure 3 Regarding the locking of the upper main rod 1 and the lower main rod 2:

[0037] Multiple upper inner cavities 11 are formed in the edge of the integrally formed outer wall of the upper main rod 1, and a U-shaped frame 12 is slidably arranged in each upper inner cavity 11. One end of the U-shaped frame 12 passes through the upper main rod 1 and extends into the slot 14 at the top of the lower main rod 2, and the other end cooperates with the abutment rod 13 on the inner wall of the sliding ring 5.

[0038] Specifically, when replacing the gate-type stirring blade 3 with another size, or to adapt to reactors of different depths and adjust the stirring position, the sliding ring 5 is moved upward, causing the inner wall support rod 13 to move upward as well. The top of the support rod 13 will push one end of the U-shaped frame 12 to move. When the other end of the U-shaped frame 12 disengages from the inside of the slot 14, the upper main rod 1 and the lower main rod 2 will be released from fixation. At this time, they can be rotated to make relative displacement between them, thereby lengthening or shortening them to achieve the effect of length adjustment.

[0039] A second compression spring is installed inside the upper inner cavity 11, with its two ends fixedly installed on the inner wall of the upper inner cavity 11 and one side of the U-shaped frame 12, respectively, to drive the U-shaped frame 12 to maintain the tendency to be inserted into the slot 14.

[0040] This application can be used in the field of chemical equipment, or in other fields applicable to this application.

[0041] Example 2

[0042] refer to Figure 3 An improvement based on Example 1: a detachable reactor door-type stirring paddle structure, which is applied to the field of chemical equipment. In order to ensure that the push rod 13 can stably abut against the U-shaped frame 12 when it moves upward, the same connecting ring 15 is fixedly provided at one end of multiple U-shaped frames 12. The push rod 13 can push the U-shaped frame 12 by contacting the connecting ring 15.

[0043] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detachable reactor door-type stirring paddle structure, characterized in that, include: The stirring rod is composed of an upper main rod (1) and a lower main rod (2) connected by threads. The upper main rod (1) is provided with a flange ring (4) at its top. A gate-type stirring blade (3) is slidably sleeved on the outer wall of the lower main rod (2), and its inner wall is provided with multiple fixing grooves (10). The locking mechanism includes a slide bar (7) that is slidably disposed inside the lower main rod (2). The lower end of the slide bar (7) is detachably engaged with the fixing groove (10), and the upper end of the slide bar (7) is provided with a latch (6). The sliding ring (5) is sleeved on the outer wall of the lower main rod (2) and engaged with the bayonet (6). When the sliding ring (5) moves axially, it disengages from the bayonet (6) to release the restriction on the slide bar (7). When the sliding ring (5) moves upward and disengages from the bayonet (6), the slide bar (7) is pressed away from the fixed groove (10) by external force, and the gate-type stirring blade (3) is unlocked from the lower main rod (2).

2. The gate-type impeller structure for a reactor according to claim 1, wherein Also includes: A U-shaped frame (12) is installed inside the upper main rod (1), with one end of the U-shaped frame (12) extending into the slot (14) at the top of the lower main rod (2); The abutment rod (13) fixed to the inner wall of the sliding ring (5) pushes the U-shaped frame (12) out of the slot (14) when the sliding ring (5) moves upward. The upper main rod (1) and the lower main rod (2) can rotate relative to each other to adjust the length.

3. The gate-type impeller structure for a reactor according to claim 2, wherein One end of each of the multiple U-shaped frames (12) is fixedly connected to the same connecting ring (15), and the abutment (13) abuts against the connecting ring (15) to synchronously drive the multiple U-shaped frames (12).

4. The gate-type impeller structure for a reactor according to claim 1, wherein The lower main rod (2) has a lower inner cavity (8) inside, and the slide bar (7) is slidably disposed in the lower inner cavity (8) and is elastically connected to the inner wall of the lower inner cavity (8) through a compression spring (9).

5. The gate-type impeller structure for a reactor according to claim 2, wherein The upper main rod (1) has an upper inner cavity (11) inside, and the U-shaped frame (12) is slidably disposed in the upper inner cavity (11) and is elastically connected to the inner wall of the upper inner cavity (11) through a second compression spring.

6. The reactor vessel gate-type impeller structure according to any one of claims 1 to 5, characterized in that, The flange ring (4) is integrally formed with the upper main rod (1) and is used to connect the drive device.