Cold mixer with mixing blades convenient to replace

By introducing a disassembly and assembly mechanism into the cold mixer, and utilizing components such as insert rods, metal blocks, and magnets, the mixing blades can be quickly replaced and their angles adjusted. This solves the problem that the mixing blades cannot be replaced or their angles adjusted individually in existing technologies, thus improving the practicality of the equipment.

CN224270866UActive Publication Date: 2026-05-26HAN RIGID IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAN RIGID IND CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cold mixers cannot replace the mixing blades individually, resulting in waste and difficulty in adjusting the blade angle, thus lacking practicality.

Method used

A cold mixer with a disassembly and assembly mechanism was designed. The combination of a rod and a metal block enables quick replacement and angle adjustment of the mixing plate. Magnets, springs, and traction ropes are used to achieve limiting and easy operation.

Benefits of technology

It enables quick disassembly and installation of individual mixing blades, reducing waste, and allows for adjustment of the blade angle as needed, thus improving the equipment's practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cold mixer with stirring blades convenient to replace, which belongs to the technical field of cold mixers, and comprises a cold mixer main body, a stirring shaft mounted in the cold mixer main body, five dismounting and mounting mechanisms, a plurality of groups of stirring plates arranged on the outer side of the stirring shaft, and a plurality of stirring blades arranged on the dismounting and mounting mechanisms, the dismounting mechanism is arranged on the outer side of the stirring shaft and is used for quickly replacing the stirring plate; wherein the dismounting and mounting mechanism comprises a sleeve block, a group of insertion rods and a group of metal insertion blocks, the insertion rods and the metal insertion blocks are arranged in the sleeve block, the sleeve block is arranged on the outer side of the stirring shaft in a sleeving manner, a butt joint disc is mounted at one end of the stirring plate, and one end of each insertion rod and one end of each metal insertion block are inserted into the butt joint disc. And the other end of the metal insertion block extends into the insertion rod. By means of the mode, the single stirring plate can be replaced according to the use condition, after the stirring plate is installed, the angle of the stirring plate can be adjusted according to the stirring requirement, and the stirring device is more practical.
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Description

Technical Field

[0001] This utility model relates to the field of cold mixer technology, specifically to a cold mixer with easily replaceable mixing blades. Background Technology

[0002] A cold mix mixer is a mechanical device used to mix materials under normal or low temperature conditions. It is widely used in industries such as asphalt mixture production, food processing, and chemicals.

[0003] A search revealed that the Chinese patent "A Stirring Device with Easy-to-Replace Stirring Blades" (publication number CN222239692U) includes a stirring shaft and several sets of stirring blades. The stirring shaft has several sets of transversely penetrating holes, and the sets of stirring blades are detachably connected to these holes one-to-one via connecting bolts. Each stirring blade set includes a fixing ring and stirring blades. The inner diameter of the fixing ring is larger than the shaft diameter of the stirring shaft, and each of the opposite sides of the fixing ring has a connecting hole that penetrates the ring wall and whose axes coincide. The stirring blades are connected to the outside of the fixed ring; the connecting bolts include a male connecting bolt head and a female connecting bolt head, and the male connecting bolt head and the female connecting bolt head are respectively provided with mutually mating external threads and internal threads; there is no need to disconnect the connection between the stirring shaft and the frame, and the stirring blade assembly can be quickly disassembled and replaced, and a single person can complete the operation; however, the above method has the following defects in actual use: it is impossible to maintain and replace individual stirring blades, resulting in the waste of extra stirring blades, and after the stirring blade assembly is installed, it is not easy to adjust the stirring blade angle according to the stirring requirements, so its practicality is generally limited.

[0004] Based on this, the present invention designs a cold mixer that facilitates the replacement of mixing blades to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a cold mixer that facilitates the replacement of mixing blades.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cold mixer with easily replaceable mixing blades includes a cold mixer body and a mixing shaft installed inside it. Multiple sets of mixing plates are arranged on the outer side of the mixing shaft. The mixer also includes a disassembly and assembly mechanism, of which five are located on the outer side of the mixing shaft and are used for quick replacement of the mixing plates. Each disassembly and assembly mechanism includes a sleeve block, a set of insert rods, and a set of metal inserts. The insert rods and metal inserts are both located inside the sleeve block. The sleeve block is fitted onto the outer side of the mixing shaft. A docking plate is installed at one end of each mixing plate. One end of each insert rod and metal insert is inserted into the docking plate, and the other end of each metal insert extends into the insert rod.

[0008] Furthermore, a set of evenly distributed insertion holes are provided on the outer side of the docking plate, and one end of the insertion rod is inserted into the interior of the insertion hole;

[0009] Furthermore, the outer side of the docking plate is fitted with an inner ring that is fixedly installed inside the sleeve block, and the outer side of the inner ring is fitted with an outer ring that is rotatably connected to the inside of the sleeve block. The other end of the insertion rod passes through and is slidably connected to the outer side of the inner ring.

[0010] Furthermore, each of the two metal blocks is provided with a traction rope at one end facing the other, and one end of the traction rope passes through the plug rod and is installed to the inner wall of the outer ring.

[0011] Furthermore, each of the two adjacent metal inserts has a magnet magnetically connected to one end facing away from the other, and the magnet is fixedly installed inside the mating disc.

[0012] Furthermore, a spring is sleeved on the outer side of the insertion rod, with one end of the spring installed on the outer side of the insertion rod and the other end of the spring installed on the inner wall of the inner ring;

[0013] Furthermore, the insertion rod has two guide rods inside, and the outer side of the traction rope contacts the outer side of the guide rods;

[0014] Furthermore, the sleeve block has circular grooves on all four sides for engaging with the docking plate, and a sealing ring is provided between the docking plate and the circular groove;

[0015] Furthermore, a drive rod is provided on one side of the outer ring, and arc-shaped grooves for accommodating the movement of the drive rod are provided on all four sides of the sleeve block.

[0016] Furthermore, the outer ring, inner ring, mating plate, and circular groove are all coaxially arranged.

[0017] Beneficial effects

[0018] 1. By setting up insert rods and metal blocks, the docking plate connected to the mixing plate is inserted into the circular groove. Then, the insert rods and metal blocks are inserted into the docking plate in sequence to complete the double limiting and achieve quick installation. When disassembling, the outer ring can be rotated and the metal blocks and insert rods can be pulled in sequence with traction ropes to separate them from the docking plate. Then, a single mixing plate and docking plate can be disassembled and removed, reducing the need to replace extra mixing plates.

[0019] 2. By setting up multiple points of insertion holes in a ring, users can pre-rotate the docking plate during the installation of the docking plate and the mixing plate to change its installation angle, so that the corresponding insertion holes align with the corresponding insertion rods. This allows the angle of the mixing plate to be adjusted according to the mixing requirements, making it more practical. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional view of the main structure of a cold mixer that facilitates the replacement of mixing blades;

[0022] Figure 2 A three-dimensional view of the structure of the sleeve block and mixing plate in a cold mixer that facilitates the replacement of mixing blades;

[0023] Figure 3 A sectional perspective view of the connecting plate and sleeve block in a cold mixer for easy replacement of mixing blades;

[0024] Figure 4 for Figure 3 Enlarged view of A in the middle;

[0025] Figure 5 This is a three-dimensional structural diagram of the outer and inner rings in a cold mixer that facilitates the replacement of mixing blades.

[0026] The labels in the diagram represent:

[0027] 100. Cold mixer body; 200. Mixing shaft; 210. Mixing plate; 220. Connecting plate; 300. Disassembly and assembly mechanism; 310. Sleeve block; 311. Inner ring; 312. Outer ring; 320. Insert rod; 321. Spring; 330. Metal insert block; 331. Traction rope; 332. Magnet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5 A cold mixer with easily replaceable mixing blades includes a cold mixer body 100 and a mixing shaft 200 installed inside it. Multiple sets of mixing plates 210 are arranged on the outer side of the mixing shaft 200. The mixer also includes five disassembly and assembly mechanisms 300, which are located on the outer side of the mixing shaft 200 and used for quick replacement of the mixing plates 210. Each disassembly and assembly mechanism 300 includes a sleeve block 310, a set of insert rods 320, and a set of metal insert blocks 330. The insert rods 320 and metal insert blocks 330 are both located inside the sleeve block 310, which is fitted onto the outer side of the mixing shaft 200. A docking plate 220 is installed at one end of each mixing plate 210. One end of each insert rod 320 and metal insert block 330 is inserted into the docking plate 220, and the other end of each metal insert block 330 extends into the insert rod 320.

[0031] In this embodiment of the utility model, when the mixing plate 210 is replaced, the disassembly and assembly mechanism 300 can be used to quickly connect and separate it from the mixing shaft 200. After the replacement is completed, the motor on the cold mixer body 100 can be driven to drive the mixing shaft 200 and the mixing plate 210 to operate and mix the materials in the cold mixer body 100.

[0032] In this embodiment of the utility model, when a user needs to replace a single stirring plate 210, the metal insert 330 can be driven to move into the insert rod 320, and then the insert rod 320 can be separated from the docking plate 220. The user can then pull the docking plate 220 directly out along the inside of the sleeve block 310, so that the stirring plate 210 can be disassembled. When installing a new stirring plate 210, the docking plate 220 on the stirring plate 210 can be inserted into the sleeve block 310, and then the end of the insert rod 320 can be pre-entered into the docking plate 220. Then the metal insert 330 can be driven into the inside of the docking plate 220 for double limiting, thus completing the installation operation.

[0033] It should be noted that the entire disassembly and assembly process of the mixing plate 210 is for the replacement of a single mixing plate 210. The damaged mixing plate 210 is maintained and the remaining normal mixing plates 210 can continue to be used normally, avoiding simultaneous disassembly. In addition, the sleeve 310 and the mixing shaft 200 are bolted together. Under special circumstances, the user can also disassemble the sleeve 310 and a set of mixing plates 210 simultaneously as needed.

[0034] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, a set of insertion holes evenly distributed along its axis are provided on the outer side of the docking plate 220, and one end of the insertion rod 320 is inserted into the interior of the insertion hole; the outer ring 312, the inner ring 311, the docking plate 220 and the circular groove are all coaxially arranged.

[0035] By setting up multiple insertion holes in a ring, during the installation of the docking plate 220 and the stirring plate 210, the user can rotate the docking plate 220 in advance to change its installation angle, and then align the corresponding insertion holes with the corresponding insertion rods 320 to complete the adjustment of the installation angle of the stirring plate 210.

[0036] In this embodiment of the utility model, an inner ring 311 is fixedly installed inside the sleeve block 310 on the outer side of the docking plate 220. An outer ring 312 is rotatably connected to the inside of the sleeve block 310 on the outer side of the inner ring 311. The other end of the insertion rod 320 passes through and is slidably connected to the outer side of the inner ring 311. The inner ring 311 is used to limit and support the insertion rod 320, reducing the occurrence of accidental displacement during its movement.

[0037] In this embodiment of the utility model, each of the two adjacent metal plugs 330 is provided with a traction rope 331 at one end. One end of the traction rope 331 passes through the plug rod 320 and is installed on the inner wall of the outer ring 312. The user can rotate the outer ring 312 to make the traction rope 331 pull the two metal plugs 330 to move relative to each other in advance, so that the two metal plugs 330 are stored in the plug rod 320. Then, when the outer ring 312 continues to move, the two metal plugs 330 cannot move because they are in contact with each other. Then the plug rod 320 will be moved by force and separate from the plug hole. Thus, when the user installs or removes the stirring plate 210, the outer ring 312 can be rotated in advance. After the plug rod 320 and the metal plugs 330 move, the docking plate 220 can be inserted or removed.

[0038] In this embodiment of the utility model, the opposite ends of two adjacent metal plugs 330 are magnetically connected to magnets 332. The magnets 332 are fixedly installed inside the docking plate 220. By using the setting of magnets 332, the metal plugs 330 will be magnetically attracted after the plug rod 320 is inserted into the corresponding plug hole, and will move to the corresponding position inside the sleeve block 310 to complete the limiting process.

[0039] In this embodiment of the utility model, a spring 321 is sleeved on the outer side of the insertion rod 320. One end of the spring 321 is installed on the outer side of the insertion rod 320, and the other end of the spring 321 is installed on the inner wall of the inner ring 311. After the user rotates the outer ring 312, the spring 321 is in a compressed state. When the docking plate 220 is placed in the circular groove, the user can release the outer ring 312. Then the spring 321 will drive the insertion rod 320 to reset, so that it can be inserted into the corresponding insertion hole.

[0040] In this embodiment of the utility model, two guide rods are provided inside the insertion rod 320. The outer side of the traction rope 331 contacts the outer side of the guide rod. The guide rod guides the traction rope 331, so that the two metal insertion blocks 330 can move relative to each other after being subjected to force.

[0041] In this embodiment of the utility model, the four sides of the sleeve block 310 are provided with circular grooves that mate with the docking plate 220. A sealing ring is provided between the docking plate 220 and the circular grooves, which can reduce the phenomenon of material seeping into the circular grooves during the mixing operation.

[0042] In this embodiment of the utility model, a drive rod is provided on one side of the outer ring 312, and arc-shaped grooves for accommodating the movement of the drive rod are provided on all four sides of the sleeve block 310. The user can move the drive rod to make the outer ring 312 move with a corresponding amplitude.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cold mixer with easily replaceable mixing blades, comprising a cold mixer body (100) and a mixing shaft (200) installed therein, wherein a plurality of mixing plates (210) are provided on the outer side of the mixing shaft (200), characterized in that: It also includes a disassembly and assembly mechanism (300), the number of which is five. The disassembly and assembly mechanism (300) is located on the outside of the stirring shaft (200) and is used for quick replacement of the stirring plate (210). The disassembly and assembly mechanism (300) includes a sleeve block (310), a set of insert rods (320) and a set of metal insert blocks (330). The insert rods (320) and the metal insert blocks (330) are both disposed inside the sleeve block (310). The sleeve block (310) is sleeved to the outside of the stirring shaft (200). A docking plate (220) is installed at one end of the stirring plate (210). One end of the insert rods (320) and the metal insert blocks (330) are both inserted into the interior of the docking plate (220). The other end of the metal insert blocks (330) extends into the interior of the insert rods (320).

2. The cold planer of claim 1, wherein, The outer side of the docking plate (220) is provided with a set of insertion holes evenly distributed along its axis, and one end of the insertion rod (320) is inserted into the interior of the insertion hole.

3. The cold planer of claim 1, wherein, The outer side of the docking plate (220) is fitted with an inner ring (311) that is fixedly installed inside the sleeve block (310). The outer side of the inner ring (311) is fitted with an outer ring (312) that is rotatably connected to the inside of the sleeve block (310). The other end of the insertion rod (320) passes through and slides to the outer side of the inner ring (311).

4. The cold planer of claim 1, wherein, Each of the two adjacent metal plugs (330) is provided with a traction rope (331) at one end. One end of the traction rope (331) passes through the plug rod (320) and is installed on the inner wall of the outer ring (312).

5. The cold planer of claim 1, wherein, Each of the two adjacent metal inserts (330) has a magnet (332) magnetically connected to one end facing away from the other. The magnet (332) is fixedly installed inside the docking plate (220).

6. The cold planer of claim 3, wherein, A spring (321) is sleeved on the outside of the insertion rod (320). One end of the spring (321) is installed on the outside of the insertion rod (320), and the other end of the spring (321) is installed on the inner wall of the inner ring (311).

7. The cold planer of claim 4, wherein, The insertion rod (320) has two guide rods inside, and the outer side of the traction rope (331) contacts the outer side of the guide rod.

8. The cold planer of claim 3, wherein, The sleeve block (310) has circular grooves on all four sides that mate with the docking plate (220), and a sealing ring is provided between the docking plate (220) and the circular groove.

9. The cold planer of claim 3, wherein, A drive rod is provided on one side of the outer ring (312), and arc-shaped grooves for accommodating the movement of the drive rod are provided on all four sides of the sleeve block (310).

10. The cold planer of claim 8, wherein, The outer ring (312), inner ring (311), docking plate (220), and circular groove are all coaxially arranged.