Concrete mixing drum
By designing a detachable sealing component on the concrete mixing drum, the problem of difficult-to-clean residual concrete on the inner wall of the drum is solved, achieving a more efficient cleaning and sealing effect and improving the performance of the concrete mixing drum.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING ZHONGFU NEW MATERIALS CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-16
AI Technical Summary
During the mixing process, some concrete tends to adhere to the inner wall of the existing concrete mixing drum, especially in the corners near the spiral blades, which are difficult to clean with a high-pressure water gun, resulting in residue that affects the quality of the concrete and the sealing of the mixing drum.
A detachable sealing assembly was designed, including an inner support and a deformation layer. The detachable connection between the conical part and the cylinder body is achieved by a locking assembly, allowing high-pressure water gun cleaning of the connection between the conical part and the spiral blade. The combination of the fluororubber deformation layer and the PET material inner support improves sealing performance and cleaning efficiency.
It effectively reduces concrete residue, improves the sealing performance of the mixing drum, ensures concrete quality, reduces the possibility of concrete leaking from the joints during mixing, and extends the service life of the sealing components.
Smart Images

Figure CN224360420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to concrete production equipment, and more specifically, to concrete mixing tanks. Background Technology
[0002] A concrete mixing plant is a device used to prepare concrete. It typically includes a concrete mixing drum, a power unit, a feeding unit, and a discharging unit. Raw materials such as cement, sand and gravel aggregates, water, and additives are fed into the concrete mixing drum through the feeding unit. The power unit rotates the concrete mixing drum and mixes the raw materials into uniform concrete.
[0003] The concrete mixing drum consists of a cylinder and a spiral blade installed inside the cylinder. The cylinder includes a cylindrical body and a truncated cone section fixed at both ends of the cylinder. The spiral blade is fixed to the inner wall of the truncated cone section. During concrete mixing, the spiral blade rotates together with the truncated cone section and provides a force to move the raw material towards the cylinder body, making it difficult for the raw material to fall out of the truncated cone section. During discharge, the cylinder reverses, causing the spiral blade to provide a force to move the concrete away from the cylinder body, so that the concrete can be collected by the discharge mechanism.
[0004] During concrete mixing, some concrete adheres to the inner wall of the cylinder. To reduce the amount of concrete residue, people use high-pressure water guns to wash the inner wall of the cylinder and the inner wall of the cone section. However, some corners near the spiral blades are not easily washed by the water gun, resulting in some concrete remaining on the inner wall of the cylinder.
[0005] Therefore, a new solution is needed to address this problem. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a concrete mixing bucket.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a concrete mixing tank, including a cylinder body and two conical portions respectively hinged to both ends of the cylinder body, wherein a sealing component for sealing the connection between the conical portion and the cylinder body is detachably connected to the conical portion, and a locking component is provided on the cylinder body and the conical portions, wherein the locking component is used to make the conical portion press the sealing component against the cylinder body.
[0008] The present invention is further configured such that: the sealing assembly includes an inner support and a deformation layer covering the inner support, and the cross-section of the inner support is I-shaped.
[0009] The present invention is further configured such that: the locking assembly includes a first ring block fixed on the outer wall of the truncated cone portion and a second ring block fixed on the outer wall of the cylinder body, the first ring block and the second ring block being connected by fastening bolts.
[0010] The present invention is further configured such that: a flip buckle is provided on the first ring block, and a locking member for engaging with the flip buckle is fixed on the second ring block.
[0011] The present invention is further configured such that the number of flip-up buckles on the truncated cone portion is only one.
[0012] The present invention is further configured such that both the cylinder body and the frustum portion are provided with flanges for contacting the deformation layer.
[0013] The present invention is further configured such that the deformation layer is made of fluororubber.
[0014] In summary, this utility model has the following beneficial effects: After mixing, by releasing the locking assembly from the conical section and the cylinder body, the conical section can be opened and the sealing assembly removed. Then, a high-pressure water gun can be used to rinse the conical section and the cylinder body. The opening of the conical section from the cylinder body allows the connection between the conical section and the spiral blades to be better exposed, enabling the use of a high-pressure water gun to rinse the more concealed areas of the spiral blades. This prevents concrete residue from remaining on the conical section, thus reducing the amount of residual concrete mixed into the new concrete during mixing. This effectively ensures the crack resistance of the concrete in this concrete mixing tank. The sealing assembly, during the operation of the mixing tank… This design effectively prevents concrete from overflowing from the gap between the cone and the cylinder. When cleaning the cylinder and cone, the sealing component can be removed from the cone for cleaning, allowing for quick removal of any embedded concrete. After cleaning, the sealing component is reinstalled on the cone, then rotated to press the sealing component against the cylinder. Finally, the locking component is used to secure the sealing component firmly against the cylinder. This design further improves the sealing performance between the cone and the cylinder, reducing the likelihood of concrete leaking between them during operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.
[0018] In the diagram: 1. Cylinder body; 2. Conical section; 3. Flanged edge; 4. Sealing assembly; 41. Inner support; 42. Deformation layer; 5. Ring block one; 6. Ring block two; 7. Fastening bolt; 8. Flip buckle; 9. Locking component. Detailed Implementation
[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] Concrete mixing bucket, such as Figures 1 to 2 As shown, the system includes a cylindrical body 1 and two frustum-shaped sections 2 respectively hinged to both ends of the cylindrical body 1. Spiral blades are welded to the inner walls of the frustum-shaped sections 2. A sealing assembly 4 for sealing the connection between the frustum-shaped sections 2 and the cylindrical body 1 is detachably connected to the frustum-shaped sections 2. Locking assemblies are provided on the cylindrical body 1 and the frustum-shaped sections 2. The locking assemblies are used to press the sealing assembly 4 against the cylindrical body 1. After mixing, by releasing the locking assembly from the frustum-shaped sections 2 and the cylindrical body 1, the frustum-shaped sections 2 can be opened and the sealing assembly 4 removed. A high-pressure water gun can then be used to rinse the frustum-shaped sections 2 and the cylindrical body 1. The opening of the frustum-shaped sections 2 from the cylindrical body 1 allows the connection between the frustum-shaped sections 2 and the spiral blades to be better exposed, enabling the high-pressure water gun to be used to rinse the more concealed areas on the spiral blades. This prevents concrete residue from remaining on the frustum-shaped sections 2, thus reducing the amount of residual concrete mixed into the new concrete during mixing. This design effectively ensures the crack resistance of the concrete in the mixing drum. The sealing component 4 prevents concrete from overflowing from the gap between the cone 2 and the drum body 1 during operation. When cleaning the drum body 1 and the cone 2, the sealing component 4 can be removed from the cone 2 for cleaning, allowing some embedded concrete to be removed quickly. After cleaning, the sealing component 4 should be reinstalled on the cone 2, and then the cone 2 should be rotated to press the sealing component 4 against the drum body 1. Finally, the locking component is used to tighten the sealing component 4 against the drum body 1. This design further improves the sealing performance of the sealing component 4 between the cone 2 and the drum body 1, reducing the possibility of concrete leaking out between the cone 2 and the drum body 1 during operation.
[0021] like Figure 2 and Figure 3As shown, the sealing assembly 4 includes an inner support 41 and a deformation layer 42 covering the inner support 41. The inner support 41 has an I-shaped cross-section. Specifically, the inner support 41 is made of PET material, and the deformation layer 42 is made of fluororubber. Fluororubber has good alkali resistance, allowing the deformation layer 42 to adapt well to working environments with long-term contact with concrete. Using fluororubber as the material for the deformation layer 42 effectively ensures its deformability. When the frustum 2 presses the sealing assembly 4 against the cylinder 1, the deformation layer 42 can deform effectively and fill the gap between the frustum 2 and the cylinder 1, thereby reducing the possibility of concrete leaking out from the gap. The inner support 41, made of PET material, provides good support for the deformation layer 42, facilitating re-support. The sealing assembly 4 is installed on the frustum 2. The locking assembly includes a ring block 5 welded to the outer wall of the frustum 2 and a ring block 6 welded to the outer wall of the cylinder 1. Both ring blocks 5 and 6 have round holes. The ring blocks 5 and 6 are connected by fastening bolts 7 passing through the round holes. When using the locking assembly to connect the frustum 2 to the cylinder 1, the engagement of ring blocks 5 and 6 can distribute the fastening force provided by the fastening bolts 7 more evenly on the outer walls of the frustum 2 and the cylinder 1, improving the stability of the connection between the frustum 2 and the cylinder 1. Ring blocks 5 are provided with a flip buckle 8, and ring blocks 6 are fixed with a locking member 9 for engaging with the flip buckle 8. Before using the locking assembly, the flip buckle 8 can be engaged with the locking member 9 to complete the pre-fixation of the frustum 2 and the cylinder 1, which makes it easier for people to use the fastening bolts 7 to fasten the frustum 2 and the cylinder 1 later.
[0022] like Figure 2 As shown, there is only one flip-button 8 on a truncated cone 2, so that people only need to complete the pre-fixation of the truncated cone 2 and the cylinder 1 by fastening a single flip-button 8 with the locking member 9. The line connecting the hinge of the truncated cone 2 and the cylinder 1 and the flip-button 8 passes through the axis of the cylinder 1, so that the distance from the flip-button 8 to the fixing point of the truncated cone 2 is far, thus making its lever arm longer, so that the flip-button 8 can effectively complete the pre-fixation of the truncated cone 2 and the cylinder 1. Both the cylinder 1 and the truncated cone 2 are provided with flanges 3 for contacting the deformation layer 42. The flanges 3 can effectively increase the contact area between the cylinder 1, the truncated cone 2 and the deformation layer 42, which can reduce the stress on the surface of the deformation layer 42 when the truncated cone 2 presses the sealing component 4 against the cylinder 1, thereby reducing the damage to the surface of the deformation layer 42 and improving the service life of the sealing component 4.
[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A concrete mixing drum, characterized in that: It includes a cylindrical body (1) and two frustum sections (2) respectively hinged to both ends of the cylindrical body (1). A sealing component (4) for sealing the connection between the frustum section (2) and the cylindrical body (1) is detachably connected to the frustum section (2). A locking component is provided on the cylindrical body (1) and the frustum section (2). The locking component is used to make the frustum section (2) press the sealing component (4) against the cylindrical body (1).
2. The concrete mixing tank according to claim 1, characterized in that: The sealing assembly (4) includes an inner support (41) and a deformation layer (42) covering the inner support (41), the cross section of which is I-shaped.
3. The concrete mixing tank according to claim 2, characterized in that: The locking assembly includes a first ring block (5) fixed on the outer wall of the cone part (2) and a second ring block (6) fixed on the outer wall of the cylinder (1). The first ring block (5) and the second ring block (6) are connected by fastening bolts (7).
4. The concrete mixing tank according to claim 3, characterized in that: The first ring block (5) is provided with a flip buckle (8), and the second ring block (6) is fixed with a locking member (9) for engaging with the flip buckle (8).
5. The concrete mixing tank according to claim 4, characterized in that: The number of the flip-up buckle (8) on the truncated cone part (2) is only one.
6. The concrete mixing tank according to claim 5, characterized in that: Both the cylindrical body (1) and the frustum portion (2) are provided with flanges (3) for contacting the deformation layer (42).
7. The concrete mixing tank according to claim 6, characterized in that: The deformation layer (42) is made of fluororubber.