Energy-saving concrete mixing device
By designing a water-cooling device and stone separators, the problems of high power consumption of the mixing motor and high concrete segregation rate were solved, achieving energy-saving and efficient concrete mixing and ensuring the uniformity of concrete and construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO KAIYE KUNHENG BUILDING MATERIALS TECH CO LTD
- Filing Date
- 2026-03-18
- Publication Date
- 2026-06-12
Smart Images
Figure CN122185398A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of energy-saving electric mixer technology, specifically to an energy-saving concrete mixing device. Background Technology
[0002] In the concrete pouring construction process of building engineering, on-site mixing of concrete raw materials is a core preliminary step. The homogeneity and workability of the mixed concrete directly determine the overall strength, density, and durability of the subsequently poured structure, and play a key role in the construction quality and safe service life of the building engineering. The drive motor of the mixer has a large workload and generates a lot of heat. The heat dissipation efficiency and heat dissipation quality of the motor are key factors to ensure the stable operation of the mixer. If the heat dissipation is not timely, it will easily lead to excessive temperature rise of the motor, which will not only reduce the working efficiency of the motor and increase energy consumption, but may also cause motor failure and shutdown, interrupt the construction process, and significantly reduce construction efficiency. Current concrete mixing equipment mainly relies on the impeller built into the motor for heat dissipation, which is not convenient for heat exchange and cooling using the water used for concrete mixing. In addition, the utilization rate of motor exhaust gas is low, the overall power consumption of the mixing motor is high, and the energy-saving effect is poor. At the same time, the order of adding concrete raw materials by workers is not standardized. Workers often add gravel, river sand and cement powder together. Adding gravel too early will affect the uniformity of mortar coating around the gravel. Cement powder will also coat the gravel too early. Because of the collision between irregular gravel and the large weight of the gravel, the segregation rate of concrete will be increased, affecting the quality of concrete mixing. At the same time, adding gravel too early will also increase the starting load of the mixing motor due to the large weight of the gravel, increasing the heat generation and affecting the mixing quality of river sand and cement powder in the early stage. Summary of the Invention
[0003] The purpose of this invention is to provide an energy-saving concrete mixing device to solve the problems mentioned in the background art, such as the high overall power consumption of the mixing motor of the current concrete mixing device and the poor standardization of the order of adding concrete raw materials by the workers.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving concrete mixing device, comprising a mixing installation component, a water cooling device installed on the mixing installation component for cooling the mixing installation component; a mixing storage section installed on the mixing installation component for discharging concrete; a feeding section installed on the mixing storage section; a stone isolation component installed on the feeding section for reducing concrete segregation rate; a pressure control component installed on the mixing installation component; the mixing installation component includes: a mixing mounting frame, support legs, and a mixing motor; two rollers are provided at the bottom of the mixing mounting frame; the mixing motor is fixedly mounted on the mixing mounting frame via a bracket; two support legs are fixedly mounted at the bottom of the mixing mounting frame.
[0005] Preferably, the mixing installation further includes a mixing frame, which is fixedly mounted on the output shaft of the mixing motor; the mixing frame is used to mix concrete raw materials.
[0006] Preferably, the water cooling device includes: a water tank, a housing, and a water pump; the water tank is fixedly installed at the bottom of the stirring mounting frame; the housing is fixedly installed on the water tank; the housing is located outside the stirring motor, and the inner side of the housing is attached to the stirring motor; the water pump is fixedly installed inside the water tank; the water tank stores water; and the water pump is connected to an external control switch.
[0007] Preferably, the water cooling device further includes: a gas discharge shell, a gas collection shell, and a conduit; the gas discharge shell is fixedly installed on the water tank and has a gas outlet facing the water tank; the gas collection shell is fixedly installed at the bottom of the water tank and is located below the stirring motor; a conduit is fixedly installed on the gas collection shell and the end of the conduit is fixedly installed on the gas discharge shell; the gas discharge shell is connected to the gas outlet end of the stirring motor.
[0008] Preferably, the mixing and storage unit includes: a hopper, a discharge port, and a baffle. The hopper is fixedly installed on the mixing mounting frame; the discharge port is fixedly installed on the side of the hopper; the side of the hopper has an opening aligned with the discharge port; the baffle is slidably inserted into the discharge port; the inner side of the baffle is in contact with the hopper; the hopper is used to store concrete raw materials; the output shaft of the mixing motor passes through the hopper; and the mixing frame is located inside the hopper.
[0009] Preferably, the feeding section includes: a feeding cover and a feeding shell, the feeding cover being fixedly installed on the hopper; the feeding shell being fixedly installed on the feeding cover; the feeding shell being located on the opposite side of the pressure control component; and the drain pipe of the water pump being fixedly installed on the feeding cover.
[0010] Preferably, the feeding section further includes a ratchet groove and a stop block, wherein the ratchet groove is provided on the side of the feeding shell; and the stop block is fixedly installed on the feeding shell.
[0011] Preferably, the stone isolation component includes: an isolation plate, a connecting shaft, a swing arm, and a torsion spring. The isolation plate is rotatably mounted on the feed housing via a rotating shaft. The isolation plate has a row of through slots. The connecting shaft is fixedly mounted on the isolation plate, and the swing arm is fixedly mounted on the connecting shaft. A torsion spring is sleeved on the outer side of the rotating shaft of the connecting shaft. One end of the torsion spring is fixedly connected to the swing arm, and the other end of the torsion spring is fixedly connected to the feed housing. The stop block is used to stop the swing arm.
[0012] Preferably, the stone block separator further includes: an electromagnet, a limiting spring, and a ratchet block; the electromagnet is fixedly mounted on the swing arm; the ratchet block is slidably inserted into the swing arm; the end of the ratchet block has a beveled structure; the end of the ratchet block is inserted into a ratchet groove; the limiting spring is located inside the swing arm; one end of the limiting spring is fixedly connected to the side of the electromagnet, and the other end of the limiting spring is fixedly connected to the ratchet block; the electromagnet is used to magnetically attract the ratchet block.
[0013] Preferably, the pressure control component includes: a control mounting plate, a lower pressure plate, a support spring, and a pressure switch. The lower pressure plate has a rubber layer on its outer side. The control mounting plate is fixedly mounted on the mixing mounting frame. The control mounting plate is fixedly mounted on the bottom of the hopper. The lower pressure plate is slidably sleeved on the control mounting plate, and the lower pressure plate passes through the hopper. The support spring is fixedly mounted inside the control mounting plate, and the top of the support spring is fixedly mounted below the lower pressure plate. The pressure switch is fixedly mounted at the bottom of the lower pressure plate, and the bottom of the pressure switch is fixedly mounted on the control mounting plate. The pressure switch is electrically connected to an electromagnet.
[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a water-cooling device to exchange heat with the mixing motor using the water used to mix the concrete, effectively reducing the heat generated by the mixing motor. Simultaneously, the water used for mixing the concrete is consumed and needs replenishment, preventing the water temperature in the pool from becoming excessively high, thus lowering cooling costs, improving the cooling quality of the mixing motor, and making the mixing motor more energy-efficient. Furthermore, this structure utilizes the exhaust gas from the mixing motor's own cooling impeller to promote air circulation above the pool, increasing the water evaporation rate, assisting in cooling, and further optimizing the heat dissipation and cooling effect.
[0015] Using stone separators can isolate the stones, restricting workers from prioritizing the addition of river sand and cement powder to form mortar first, and delaying the addition of stones. At the same time, in conjunction with pressure control devices, the stone separators can be automatically released after the workers have added the river sand and cement powder, and then the stones can be added normally. The structure is simple to control, and by mixing concrete raw materials in stages, it effectively reduces the segregation rate of concrete and avoids the problem of high mixing resistance caused by adding stones in advance.
[0016] By using a feed hopper located on the opposite side of the pressure control unit, it is possible to further ensure that the mixing motor is running when workers add river sand and cement. The sand and cement are mixed by the mixing rack before the material is spread onto the lower pressure plate, which further ensures that the mixing work needs to be carried out in a timely manner when adding materials. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an energy-saving concrete mixing device according to the present invention; Figure 2 This is a schematic diagram of the bottom structure of an energy-saving concrete mixing device according to the present invention; Figure 3 This is a cross-sectional view of the internal structure of an energy-saving concrete mixing device according to the present invention; Figure 4 This is a schematic diagram of the stirring installation component of the present invention; Figure 5 This is a schematic diagram of the water cooling device structure of the present invention; Figure 6 This is a schematic diagram of the mixing and storage section of the present invention; Figure 7 This is a schematic diagram of the feeding section structure of the present invention; Figure 8 This is a schematic diagram of the stone block separator structure of the present invention; Figure 9 This is a cross-sectional view of the mounting position of the ratchet block according to the present invention; Figure 10 This is a schematic diagram of the pressure control component of the present invention.
[0018] In the attached diagram, the components represented by each number are as follows: 1. Mixing installation assembly; 101. Mixing mounting frame; 1011. Support leg; 102. Mixing motor; 103. Mixing frame; 2. Water cooling device; 201. Water tank; 2011. Housing; 202. Water pump; 203. Gas discharge shell; 204. Gas collection shell; 205. Conduit; 3. Mixing and storage section; 301. Hopper; 302. Discharge port; 303. Baffle; 4. Feeding section; 401, feed cover; 402, feed shell; 4021, ratchet groove; 403, stop block; 5, stone block separator; 501, separator plate; 5011, connecting shaft; 502, swing arm; 5021, torsion spring; 503, electromagnet; 504, limit spring; 505, ratchet block; 6, pressure control component; 601, control mounting plate; 602, lower pressure plate; 603, support spring; 604, pressure switch. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] This invention provides a technical solution: such as Figures 1 to 10 An energy-saving concrete mixing device is shown, comprising a mixing mounting component 1, a water cooling device 2 installed on the mixing mounting component 1 for cooling the mixing mounting component 1; a mixing storage section 3 installed on the mixing mounting component 1 for discharging concrete; a feeding section 4 installed on the mixing storage section 3; a stone isolation component 5 installed on the feeding section 4 for reducing concrete segregation; a pressure control component 6 installed on the mixing mounting component 1; the mixing mounting component 1 includes: a mixing mounting frame 101, support legs 1011, and a mixing motor 102; two rollers are provided at the bottom of the mixing mounting frame 101; the mixing motor 102 is fixedly mounted on the mixing mounting frame 101 by a bracket; two support legs 1011 are fixedly mounted at the bottom of the mixing mounting frame 101.
[0021] The mixing installation component 1 further includes: a mixing frame 103, which is fixedly mounted on the output shaft of the mixing motor 102; the mixing frame 103 is used for mixing concrete raw materials; the mixing and storage unit 3 includes: a hopper 301, a discharge port 302, and a baffle 303, the hopper 301 is fixedly mounted on the mixing installation frame 101; the discharge port 302 is fixedly mounted on the side of the hopper 301; the side of the hopper 301 has an opening aligned with the discharge port 302; the baffle 303 is slidably inserted into the discharge port 302; the inner side of the baffle 303 is in contact with the hopper 301; The hopper 301 is used to store concrete raw materials; the output shaft of the mixing motor 102 passes through the hopper 301; the mixing frame 103 is located inside the hopper 301; the water cooling device 2 can be used in conjunction with the mixing frame 103 to store concrete raw materials and carry out mixing work. The mixing frame 103 can achieve efficient mixing, and the baffle 303 can facilitate the rapid discharge of the mixed concrete; after the concrete is mixed, when it is necessary to discharge the concrete, the baffle 303 can be lifted out. At this time, the concrete can be quickly discharged by its own weight and with the guidance of the discharge port 302.
[0022] The water cooling device 2 includes: a water tank 201, a housing 2011, and a water pump 202. The water tank 201 is fixedly installed at the bottom of the stirring mounting frame 101; the housing 2011 is fixedly installed on the water tank 201; the housing 2011 is located outside the stirring motor 102, and the inner side of the housing 2011 is attached to the stirring motor 102; the water pump 202 is fixedly installed inside the water tank 201; the water tank 201 contains water; the water pump 202 is externally connected to a control switch; the water cooling device 2 also includes: a gas discharge shell 203 and a gas collection shell 204. The gas discharge shell 203 is fixedly installed on the water tank 201 along with the conduit 205, and has an outlet facing the water tank 201. The gas collection shell 204 is fixedly installed at the bottom of the water tank 201 and is located below the mixing motor 102. The conduit 205 is fixedly installed on the gas collection shell 204, and the end of the conduit 205 is fixedly installed on the gas discharge shell 203. The gas discharge shell 203 is connected to the outlet of the mixing motor 102. A water cooling device 2 is used to cool the water mixed with the concrete. The mixing motor 102 performs heat exchange cooling, which effectively reduces the heat generated by the mixing motor 102. Meanwhile, the water used to mix concrete needs to be replenished as it is consumed, preventing the water temperature in the water tank 201 from becoming too high. This reduces cooling costs, improves the cooling quality of the mixing motor 102, and makes it more energy-efficient, especially in summer. Furthermore, the structure utilizes the exhaust gas from the cooling impeller of the mixing motor 102 to promote air circulation above the water tank 201, increasing the water evaporation rate and aiding in cooling, further optimizing the heat dissipation and cooling effect. The mixing motor 102 drives the mixing frame 103 to rotate and mix the concrete raw materials. During the operation of the mixing motor 102, the water surrounding the casing 2011 can exchange heat with the mixing motor 102, promoting its cooling. Simultaneously, the exhaust gas discharged from the bottom of the mixing motor 102 can be collected by the air-collecting shell 204, guided through the conduit 205, and discharged from the exhaust shell 203, blowing towards the top of the water tank 201 to promote water evaporation.
[0023] The feeding section 4 includes: a feeding cover 401 and a feeding shell 402. The feeding cover 401 is fixedly installed on the hopper 301; the feeding shell 402 is fixedly installed on the feeding cover 401; the feeding shell 402 is located on the opposite side of the pressure control component 6; the drain pipe of the water pump 202 is fixedly installed on the feeding cover 401; the feeding section 4 also includes: a ratchet groove 4021 and a stop block 403. The ratchet groove 4021 is provided on the side of the feeding shell 402; the stop block 403 is fixedly installed on the feeding shell 402; the stone isolation component 5 includes: an isolation plate 501, a connecting shaft 5011, a swing arm 502, and a torsion spring 5021. The isolation plate 501 is rotatably installed on the feeding shell 402 via a rotating shaft; the isolation plate 501 is provided with a row of through grooves; the isolation plate 501 is fixedly installed on the stone isolation component 6. A connecting shaft 5011 is installed, and a swing arm 502 is fixedly installed on the connecting shaft 5011; a torsion spring 5021 is sleeved on the outer side of the rotating shaft of the connecting shaft 5011; one end of the torsion spring 5021 is fixedly connected to the swing arm 502, and the other end of the torsion spring 5021 is fixedly connected to the feed shell 402; a stop block 403 is used to stop the swing arm 502; the width of the through groove on the isolation plate 501 is smaller than the stone particle size; the stone isolation component 5 also includes: an electromagnet 503, a limiting spring 504, and a ratchet block 505, the electromagnet 503 is fixedly installed on the swing arm 502; the ratchet block 505 is slidably inserted into the swing arm 502; the end of the ratchet block 505 has a bevel structure; the end of the ratchet block 505 is inserted into the ratchet groove 4021; the limiting spring 504 is located on the swing arm 5011. 2. Inside; one end of the limiting spring 504 is fixedly connected to the side of the electromagnet 503, and the other end of the limiting spring 504 is fixedly connected to the ratchet block 505; the electromagnet 503 is used to magnetically attract the ratchet block 505; the pressure control component 6 includes: a control mounting plate 601, a lower pressure plate 602, a support spring 603, and a pressure switch 604, the lower pressure plate 602 has a rubber layer on its outer side; the control mounting plate 601 is fixedly mounted on the mixing mounting frame 101; the control mounting plate 601 is fixedly mounted on the bottom of the hopper 301; the lower pressure plate 602 is slidably sleeved on the control mounting plate 601, and the lower pressure plate 602 passes through the hopper 301; the support spring 603 is fixedly installed inside the control mounting plate 601, and the top end of the support spring 603 is fixedly mounted on the lower pressure plate 602. Below; a pressure switch 604 is fixedly installed at the bottom of the pressure plate 602, and the bottom of the pressure switch 604 is fixedly installed on the control mounting plate 601; the pressure switch 604 is electrically connected to the electromagnet 503; the stone block isolator 5 can isolate the stones, restricting the workers from prioritizing the addition of river sand and cement powder to form mortar first, and delaying the addition of stones. At the same time, in conjunction with the pressure control component 6, the limitation of the stone block isolator 5 can be automatically released after the workers have added river sand and cement powder, and then the stones can be added normally. The structure is simple to control. By mixing concrete raw materials in stages, the segregation rate of concrete is effectively reduced. When stones are added later, the uniform mortar will quickly and completely coat the surface of the stones, so that the coarse and fine aggregates and cementitious materials form a whole.If the gravel is added first, the cement powder will easily fall directly into the gaps between the gravel, making it difficult to disperse evenly. Even after water is added, a large amount of cement powder that is wrapped around the gravel will adhere to the surface of the gravel. Adding gravel, river sand and cement powder at the same time in the early stage will also cause the mixing rack 103 to have high running resistance in the early stage, affecting the mixing quality and increasing the starting resistance of the mixing motor 102. By utilizing the feed shell 402 located on the opposite side of the pressure control component 6, it can be further ensured that the mixing motor 102 is kept running when the workers add river sand and cement. After the river sand and cement are mixed by the mixing frame 103, the materials can be spread onto the lower pressure plate 602. This further ensures that the mixing work needs to be carried out in a timely manner when adding materials, and the structure control is simple.
[0024] Working principle: When concrete mixing is required, first place the mixing frame 101 on the ground, then start the mixing motor 102 to drive the mixing frame 103 to rotate. Since the width of the groove on the isolation plate 501 is smaller than the aggregate size, only river sand and cement powder can be added at this time. After the river sand and cement powder are added to the isolation plate 501, they will fall into the hopper 301. At this point, the mixing frame 103 needs to rotate to mix and spread the accumulated river sand and cement powder. During this process, some of the river sand and cement powder will... Pushed above the lower pressure plate 602, the sand and cement powder, under their own weight, trigger the water pump 202 to draw water from the pool 201 into the hopper 301 to form mortar. This increases the pressure above the lower pressure plate 602, causing it to move downwards and compress the support spring 603. At this point, the pressure reaches the set pressure, pressing the pressure switch 604. This activates the electromagnet 503, attracting the ratchet block 505. The ratchet block 505 is then magnetically attracted and moves backward, compressing the limit spring 504. At this point, the ratchet block 505 is pulled out from the ratchet groove 4021, releasing the limit. Only then can workers normally place stones onto the isolation plate 501. Under the weight of the stones, the isolation plate 501 can be pressed down and rotated downwards. After the stones are placed, the isolation plate 501 can be flipped back to its original position under the elastic torque of the torsion spring 5021. As the newly added stones mix with the mortar, when the concrete needs to be discharged after mixing, the baffle 303 can be pulled out. At this time, the concrete can be quickly discharged by utilizing its own weight and the guidance of the discharge port 302. As the concrete is discharged from the hopper 301, the pressure on the lower pressure plate 602 gradually decreases. At this time, the pressure switch 604 is no longer pressed, which can control the electromagnet 503 to be de-energized. At this time, the ratchet block 505 is no longer magnetically attracted. Under the elastic push of the limit spring 504, the ratchet block 505 will re-insert into the ratchet groove 4021 to limit the order of raw material feeding during the next round of concrete mixing. When the water level in pool 201 drops, it can be replenished manually in a timely manner. During the operation of the stirring motor 102, the water located outside the casing 2011 can exchange heat with the stirring motor 102 to promote the cooling of the stirring motor 102. At the same time, the exhaust gas discharged from the bottom of the stirring motor 102 can be collected by the gas collecting shell 204, guided through the conduit 205, discharged from the exhaust shell 203, and blown towards the top of the pool 201 to promote water evaporation.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An energy-saving concrete mixing device, comprising a mixing installation component (1), wherein a water cooling device (2) is installed on the mixing installation component (1), characterized in that: The mixing installation component (1) is equipped with a mixing storage unit (3); the mixing storage unit (3) is equipped with a feeding unit (4). A stone isolation component (5) is installed on the feeding section (4); a pressure control component (6) is installed on the mixing installation component (1); The mixing installation component (1) includes: a mixing mounting frame (101), support legs (1011) and a mixing motor (102). The mixing mounting frame (101) has two rollers at its bottom. The mixing motor (102) is fixedly mounted on the mixing mounting frame (101) by a bracket. The mixing mounting frame (101) has two support legs (1011) fixedly mounted at its bottom.
2. The energy-saving concrete mixing device according to claim 1, characterized in that: The stirring installation component (1) further includes: a stirring frame (103), which is fixedly installed on the output shaft of the stirring motor (102).
3. The energy-saving concrete mixing device according to claim 2, characterized in that: The water cooling device (2) includes: a water tank (201), a housing (2011), and a water pump (202). The water tank (201) is fixedly installed at the bottom of the stirring mounting frame (101). The housing (2011) is fixedly installed on the water tank (201). The housing (2011) is located outside the stirring motor (102), and the inner side of the housing (2011) is attached to the stirring motor (102). The water pump (202) is fixedly installed inside the water tank (201). The water tank (201) stores water. The water pump (202) is connected to an external control switch.
4. The energy-saving concrete mixing device according to claim 3, characterized in that: The water cooling device (2) further includes: a gas discharge shell (203), a gas collection shell (204), and a conduit (205). The gas discharge shell (203) is fixedly installed on the water tank (201), and the gas discharge shell (203) is provided with a gas outlet facing the water tank (201). The gas collection shell (204) is fixedly installed at the bottom of the water tank (201), and the gas collection shell (204) is located below the stirring motor (102). The conduit (205) is fixedly installed on the gas collection shell (204), and the end of the conduit (205) is fixedly installed on the gas discharge shell (203). The gas discharge shell (203) is connected to the gas outlet of the stirring motor (102).
5. The energy-saving concrete mixing device according to claim 3, characterized in that: The mixing and storage unit (3) includes: a hopper (301), a discharge port (302), and a baffle (303). The hopper (301) is fixedly installed on the mixing mounting frame (101). The discharge port (302) is fixedly installed on the side of the hopper (301). An opening aligned with the discharge port (302) is provided on the side of the hopper (301). The baffle (303) is slidably inserted into the discharge port (302). The inner side of the baffle (303) is attached to the hopper (301). The output shaft of the mixing motor (102) passes through the hopper (301). The mixing frame (103) is located inside the hopper (301).
6. The energy-saving concrete mixing device according to claim 5, characterized in that: The feeding section (4) includes: a feeding cover (401) and a feeding shell (402). The feeding cover (401) is fixedly installed on the hopper (301). The feeding shell (402) is fixedly installed on the feeding cover (401). The feeding shell (402) is located on the opposite side of the pressure control component (6). The drain pipe of the water pump (202) is fixedly installed on the feeding cover (401).
7. The energy-saving concrete mixing device according to claim 6, characterized in that: The feeding section (4) further includes a ratchet groove (4021) and a stop block (403). The ratchet groove (4021) is provided on the side of the feeding shell (402); the stop block (403) is fixedly installed on the feeding shell (402).
8. The energy-saving concrete mixing device according to claim 7, characterized in that: The stone isolation component (5) includes: an isolation plate (501), a connecting shaft (5011), a swing arm (502), and a torsion spring (5021). The isolation plate (501) is rotatably mounted on the feed shell (402) via a rotating shaft. A row of through grooves is provided on the isolation plate (501). The connecting shaft (5011) is fixedly installed on the isolation plate (501), and the swing arm (502) is fixedly installed on the connecting shaft (5011). A torsion spring (5021) is sleeved on the outside of the rotating shaft of the connecting shaft (5011). One end of the torsion spring (5021) is fixedly connected to the swing arm (502), and the other end of the torsion spring (5021) is fixedly connected to the feed shell (402).
9. An energy-saving concrete mixing device according to claim 8, characterized in that: The stone block separator (5) further includes: an electromagnet (503), a limiting spring (504), and a ratchet block (505). The electromagnet (503) is fixedly installed on the swing arm (502). The ratchet block (505) is slidably inserted into the swing arm (502). The end of the ratchet block (505) is a bevel structure. The end of the ratchet block (505) is inserted into the ratchet groove (4021). The limiting spring (504) is located inside the swing arm (502). One end of the limiting spring (504) is fixedly connected to the side of the electromagnet (503), and the other end of the limiting spring (504) is fixedly connected to the ratchet block (505).
10. An energy-saving concrete mixing device according to claim 9, characterized in that: The pressure control component (6) includes: a control mounting plate (601), a lower pressure plate (602), a support spring (603), and a pressure switch (604). The control mounting plate (601) is fixedly mounted on the stirring mounting frame (101). The control mounting plate (601) is fixedly mounted on the bottom of the hopper (301). The lower pressure plate (602) is slidably sleeved on the control mounting plate (601), and the lower pressure plate (602) passes through the hopper (301). The support spring (603) is fixedly mounted inside the control mounting plate (601), and the top of the support spring (603) is fixedly mounted below the lower pressure plate (602). The pressure switch (604) is fixedly mounted at the bottom of the lower pressure plate (602), and the bottom of the pressure switch (604) is fixedly mounted on the control mounting plate (601). The pressure switch (604) is electrically connected to an electromagnet (503).