Concrete mixing device
By designing adjustable length feet, using the sliding connection between the slide column and the round groove and the coordination of the limiting parts, the existing concrete mixing device has poor stability on uneven grounds, achieving better stability and support effects.
Patent Information
- Application Number
- CN202421217624.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When existing concrete mixing devices are used on uneven grounds, the feet are not in contact with the ground, resulting in poor stability of the device and easy to shake.
A foot consisting of a fixed section and a telescopic section is designed. The length of the foot is adjusted through the sliding connection of the slide column to the circular groove and the coordination of the limiting member to ensure that each foot has stable contact with the ground.
By adjusting the length of the foot, ensuring that each foot of the device has stable contact with the ground, improving the overall stability of the device and reducing the possibility of shaking.
Smart Images
Figure CN222610010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a concrete making technology, and more specifically, to a concrete mixing device. Background Art
[0002] Concrete mixing plant is a kind of mechanical equipment specially used to mix cement, sand, stone, water and other raw materials in a certain proportion to make concrete. It plays a vital role in engineering fields such as construction, roads, bridges, etc.
[0003] At present, the common concrete mixing device includes a frame, a mixing drum for mixing concrete is arranged on the top of the frame, a motor for driving the mixing drum to rotate is arranged on the frame, and a number of legs for supporting the whole device are arranged at the bottom of the frame. When the concrete mixing device is working, according to the concrete ratio requirements, the required raw materials such as cement, sand, stone, etc. are added into the mixing drum according to the set proportion, and the motor is started to drive the mixing drum to rotate, so as to achieve full mixing of the raw materials. Compared with the traditional manual method of preparing concrete, the concrete preparation efficiency is high and the product quality is good.
[0004] However, when the device is used to mix concrete raw materials on an uneven ground, the entire device may shake as the mixing barrel rotates due to the lack of contact between the support legs and the ground, resulting in poor stability. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model aims to provide a concrete mixing device with good stability.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a concrete mixing device, including a frame, a mixing drum for mixing concrete is arranged on the top of the frame, four legs for supporting the frame are arranged at the bottom of the frame, the legs include a fixed section and a telescopic section, a circular groove is opened at the bottom of the fixed section, a sliding column slidably connected in the circular groove is arranged at the top of the telescopic section, and a limiting member for fixing the telescopic section and limiting the sliding column from sliding in the circular groove is arranged on the fixed section.
[0007] The utility model is further configured as follows: the limiting member is a screw sleeve, an internal thread structure is arranged on the inner peripheral wall of the screw sleeve, and an external thread structure matching the internal thread structure is arranged on the outer peripheral walls of the fixed section and the telescopic section.
[0008] The utility model is further configured as follows: a spring is arranged in the circular groove, one end of the spring is fixedly connected to the top wall in the circular groove, and the other end is fixedly connected to the top of the sliding column, and the length of the spring in a natural state is less than the groove depth of the circular groove.
[0009] The utility model is further configured as follows: the outer diameter of the spring is equal to the groove diameter of the circular groove.
[0010] The utility model is further configured as follows: a limiting groove for limiting relative rotation between the sliding column and the circular groove is opened on the inner peripheral wall of the circular groove along its depth direction, and a convex ridge slidably connected in the limiting groove is arranged on the outer peripheral wall of the sliding column.
[0011] The utility model is further configured as follows: a convex ring for resisting the screw sleeve is circumferentially arranged on the outer peripheral wall of the telescopic section, and the convex ring is used to limit the screw sleeve from continuing to move downward.
[0012] The utility model is further configured as follows: a plurality of anti-slip grooves are circumferentially provided on the outer peripheral wall of the screw sleeve.
[0013] In summary, the utility model has the following beneficial effects: the utility model can adjust the distance between the telescopic section and the fixed section through the sliding connection between the sliding column and the circular groove and the auxiliary cooperation of the limit piece, thereby realizing the change of the length of the support leg, so that each support leg of the mixing device can have a stable contact with the ground, thereby ensuring that the support leg has a good supporting effect on the device as a whole and reducing the possibility of shaking of the device, which makes the concrete mixing device have better stability when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the utility model, which is used to show the state where the screw sleeve on one of the legs is separated from the telescopic section;
[0015] Figure 2 for Figure 1 The enlarged schematic diagram of the middle A part;
[0016] Figure 3 It is a partial cross-sectional view of the support foot in the utility model.
[0017] In the figure: 1, frame; 2, mixing drum; 3, support foot; 4, fixed section; 5, telescopic section; 6, circular groove; 7, sliding column; 8, screw sleeve; 9, spring; 10, limit groove; 11, convex ridge; 12, convex ring; 13, anti-slip groove. DETAILED DESCRIPTION
[0018] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] See also Figure 1-3As shown, a concrete mixing device comprises a frame 1, a mixing drum 2 for mixing concrete is arranged on the top of the frame 1, four legs 3 for supporting the frame 1 are arranged at the bottom of the frame 1, and the legs 3 include a fixed section 4 and a telescopic section 5, a circular groove 6 is opened at the bottom of the fixed section 4, a sliding column 7 slidably connected in the circular groove 6 is arranged on the top of the telescopic section 5, and a limiting member for fixing the telescopic section 5 and limiting the sliding column 7 from sliding in the circular groove 6 is arranged on the fixed section 4. When using the concrete mixing device on an uneven ground, first observe the contact between each leg 3 and the ground. If the telescopic section 5 of a leg 3 does not completely contact the ground or there is a gap, the length of the leg 3 can be manually adjusted, and the telescopic section 5 can be held by releasing the fixing of the limiting member on the telescopic section 5. The telescopic section 5 is fixed at a suitable position by using a limiter to ensure that the limiter can firmly lock the telescopic section 5 to prevent it from sliding or shifting during operation. The distance between the telescopic section 5 and the fixed section 4 can be adjusted through the sliding connection between the slide column 7 and the circular groove 6 and the auxiliary cooperation of the limiter, so as to realize the change of the length of the support leg 3, so that each support leg 3 of the mixing device can have a stable contact with the ground, thereby ensuring that the support leg 3 has a good supporting effect on the whole device and reduces the possibility of shaking of the device, which makes the concrete mixing device have good stability when in use.
[0020] See also Figure 2-3 As shown, the limiting member is a screw sleeve 8, an internal thread structure is provided on the inner circumferential wall of the screw sleeve 8, and an external thread structure matching the internal thread structure is provided on the outer circumferential walls of the fixed section 4 and the telescopic section 5. In the process of adjusting the length of the support leg 3, the screw sleeve 8 is rotated to move it in the direction away from the telescopic section 5 until the threaded connection between the telescopic section 5 and the screw sleeve 8 is released, and the fixing of the telescopic section 5 by the screw sleeve 8 can be loosened. When the length of the support leg 3 is determined, the screw sleeve 8 is rotated in the opposite direction to make it continuously approach the telescopic section 5 until the external thread structure on the outer circumferential wall of the telescopic section 5 contacts the internal thread structure on the inner circumferential wall of the screw sleeve 8, and the screw sleeve 8 is continued to be rotated. As the telescopic section 5 gradually enters the screw sleeve 8, the screw sleeve 8 It is tightly threadedly connected with the telescopic section 5, and the threaded connection has reliable connection strength and self-locking effect, which makes the support leg 3 have higher strength and supporting effect as a whole. At the same time, by rotating the screw sleeve 8 forwards and backwards, the fixation and separation between the telescopic section 5 and the fixed section 4 can be achieved, and the operation is relatively convenient. A plurality of anti-skid grooves 13 are circumferentially opened on the outer peripheral wall of the screw sleeve 8. The friction between the outer peripheral wall of the screw sleeve 8 and the operator's hand is increased by opening the anti-skid grooves 13. Due to the presence of the anti-skid grooves 13, when the operator rotates the screw sleeve 8, the fingers can better fit on the outer peripheral wall of the screw sleeve 8, reducing the possibility of slipping, which makes the operation more stable and easy to operate.
[0021] See also Figure 3 As shown, a spring 9 is provided in the circular groove 6, one end of the spring 9 is fixedly connected to the top wall of the circular groove 6, and the other end is fixedly connected to the top of the sliding column 7, and the length of the spring 9 in the natural state is less than the groove depth of the circular groove 6. Therefore, in the process of adjusting the length of the support leg 3, the spring 9 has a limiting effect on the sliding column 7, and because the length of the spring 9 in the natural state is less than the groove depth of the circular groove 6, the sliding column 7 can always have a stable connection relationship with the circular groove 6, ensuring the stability of the connection between the sliding column 7 and the circular groove 6. At the same time, when the limiter fixes the telescopic section 5, the spring 9 can drive the telescopic section 5 to move downward and make its bottom contact with the ground. Once the bottom of the telescopic section 5 contacts and contacts with the ground, the thrust of the spring 9 plays a role. It plays a stabilizing role, so that the telescopic section 5 can be firmly maintained in the position in contact with the ground, which not only enhances the contact stability between the telescopic section 5 and the ground, but also can absorb and disperse the vibration and impact force from the ground to a certain extent, which is beneficial to improving the stability of the entire device. The outer diameter of the spring 9 is equal to the groove diameter of the circular groove 6. In the process of deformation of the spring 9, since the outer diameter of the spring 9 is equal to the groove diameter of the circular groove 6, the spring 9 can always be extended and retracted along the inner circumferential wall of the circular groove 6. The circular groove 6 guides the extension and retraction of the spring 9 and makes the spring 9 more evenly stressed, reducing the bending deformation caused by uneven stress, not only extending the service life of the spring 9, but also maintaining its long-term stability and reliability.
[0022] See also Figure 2 As shown, a limiting groove 10 for limiting the relative rotation between the sliding column 7 and the circular groove 6 is opened on the inner circumferential wall of the circular groove 6 along its depth direction, and a convex ridge 11 slidably connected to the limiting groove 10 is arranged on the outer circumferential wall of the sliding column 7. When the sliding column 7 slides in the circular groove 6, the convex ridge 11 slides in the limiting groove 10 accordingly, and the limiting groove 10 guides the sliding of the convex ridge 11, which makes the sliding column 7 in the circular groove 6 slide more smoothly, and in the process of screwing the screw sleeve 8, the convex ridge 11 is limited by the limiting groove 10, so that when the screw sleeve 8 is screwed, the fixing part and the telescopic section 5 remain relatively still, and There is no need to manually fix the telescopic section 5, which makes the operation of screwing the screw sleeve 8 less labor-intensive. A convex ring 12 for contacting the screw sleeve 8 is circumferentially arranged on the outer peripheral wall of the telescopic section 5, and the convex ring 12 is used to limit the screw sleeve 8 from continuing to move downward. The presence of the convex ring 12 limits the range of further downward movement of the screw sleeve 8. When the screw sleeve 8 is rotated to fix the telescopic section 5, it will move downward along the external thread structure of the telescopic section 5 until its bottom contacts the convex ring 12. At this time, the screw sleeve 8 can no longer move downward, thereby ensuring that the telescopic section 5 is firmly locked in the desired position, ensuring the accuracy and reliability of the adjustment.
[0023] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A concrete mixing device, comprising a frame (1), a mixing drum (2) for mixing concrete is arranged on the top of the frame (1), and four legs (3) for supporting the frame (1) are arranged on the bottom of the frame (1), characterized in that: The support leg (3) comprises a fixed section (4) and a telescopic section (5); a circular groove (6) is provided at the bottom of the fixed section (4); a sliding column (7) slidably connected to the circular groove (6) is provided at the top of the telescopic section (5); and a limiting member for fixing the telescopic section (5) and limiting the sliding column (7) from sliding in the circular groove (6) is provided on the fixed section (4).
2. The concrete mixing device according to claim 1, characterized in that: The limiting member is a screw sleeve (8), an inner peripheral wall of the screw sleeve (8) is provided with an internal thread structure, and the outer peripheral walls of the fixed section (4) and the telescopic section (5) are both provided with external thread structures matching the internal thread structure.
3. The concrete mixing device according to claim 1, characterized in that: A spring (9) is arranged in the circular groove (6), one end of the spring (9) is fixedly connected to the top wall of the circular groove (6), and the other end is fixedly connected to the top of the sliding column (7), and the length of the spring (9) in a natural state is less than the groove depth of the circular groove (6).
4. The concrete mixing device according to claim 3, characterized in that: The outer diameter of the spring (9) is equal to the groove diameter of the circular groove (6).
5. The concrete mixing device according to claim 1, characterized in that: A limiting groove (10) for limiting relative rotation between the sliding column (7) and the circular groove (6) is provided on the inner peripheral wall of the circular groove (6) along its depth direction, and a convex ridge (11) slidably connected in the limiting groove (10) is provided on the outer peripheral wall of the sliding column (7).
6. The concrete mixing device according to claim 2, characterized in that: A convex ring (12) for contacting the screw sleeve (8) is circumferentially arranged on the outer peripheral wall of the telescopic section (5), and the convex ring (12) is used to limit the screw sleeve (8) from continuing to move downward.
7. The concrete mixing device according to claim 2, characterized in that: A plurality of anti-slip grooves (13) are circumferentially formed on the outer peripheral wall of the screw sleeve (8).