Anti-freezing asphalt concrete pouring device for low-temperature construction

Abstract

The utility model discloses an anti-freezing asphalt concrete pouring device for low-temperature construction. The anti-freezing asphalt concrete pouring device comprises a bottom plate, moving wheels, a supporting frame, a stirring mechanism, a conveying mechanism and a pouring pipe. The stirring mechanism comprises a stirring tank, a feeding opening, a stirring rod, stirring blades, a scraping plate, an auxiliary assembly, a discharging opening, a first heating wire and a dredging assembly, the stirring tank is fixedly arranged at the top end of the supporting frame, the stirring rod is rotationally connected with the stirring tank, and one ends of the stirring blades are fixedly connected with the stirring rod; the scraping plate is arranged at the other end of the stirring blade through the auxiliary assembly and makes contact with the inner wall of the stirring tank, a first annular groove is formed in the side wall of the stirring tank, the multiple first heating wires are arranged in the first annular groove at equal intervals, and the dredging assembly is arranged in the discharging opening and connected with the bottom end of the stirring rod. The scraping plate is arranged and is in contact with the inner wall of the stirring tank, so that the inner wall of the stirring tank is cleaned in time while slurry is stirred, the slurry is prevented from being attached to the inner wall of the stirring tank, and the slurry output rate of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, and more specifically, to an antifreeze asphalt concrete pouring device for low-temperature construction. Background Technology

[0002] Concrete pouring refers to the process of pouring concrete into molds until it hardens. Concrete materials are generally classified into two types based on their source: self-mixed concrete and ready-mixed concrete. Self-mixed concrete is mixed on-site during pouring, while ready-mixed concrete is typically transported to the construction site from a ready-mixed concrete company using pump trucks. Self-mixed concrete is usually stored in containers and manually filled into the molds by construction workers, while ready-mixed concrete is generally transported and filled into the molds using pump trucks and steel pipes.

[0003] Authorization announcement number CN218522262U discloses a concrete pouring device, including a supporting base plate, a mixing tank, a hopper, supporting side plates, a mixing motor, a mixing auger, an adjusting slider, an adjusting threaded rod, an adjusting motor, a discharge pipe, a pouring pipe, a pouring hose, and a pouring valve. The mixing tank is located above the supporting base plate, the hopper is fixed below the mixing tank, the supporting side plates are symmetrically fixed above both ends of the supporting base plate, and the upper end of the supporting side plates is fixedly connected to the mixing tank. The mixing motor is fixed above the center of the mixing tank, and the mixing auger is rotatably located inside the mixing tank and the hopper. The output end of the mixing motor passes through the top wall of the mixing tank and is fixedly connected to the mixing auger. This patent continuously mixes the concrete, preventing the sand and gravel in the concrete from settling and improving the quality of concrete pouring. The pouring position is adjustable. However, during use, the slurry easily adheres to the inner wall of the mixing tank, and it is impossible to clean the slurry adhering to the inner wall of the mixing tank in a timely manner, which leads to a decrease in the slurry output rate of the device. Utility Model Content

[0004] This invention aims to overcome the problem of not being able to clean the slurry adhering to the inner wall of the mixing tank in a timely manner, and provides an antifreeze asphalt concrete pouring device for low-temperature construction.

[0005] A freeze-resistant asphalt concrete pouring device for low-temperature construction includes a base plate, moving wheels, a support frame, a mixing mechanism, a conveying mechanism, and a pouring pipe. The moving wheels are fixedly installed at the four corners of the bottom surface of the base plate, the support frame is fixedly installed on the top surface of the base plate, the mixing mechanism is installed at the top of the support frame, and the conveying mechanism is installed on the top surface of the base plate and is connected to the mixing mechanism and the pouring pipe respectively.

[0006] The mixing mechanism includes a mixing tank, a feed inlet, a mixing rod, mixing blades, a scraper, auxiliary components, a discharge port, a first heating wire, and a unblocking component. The mixing tank is fixedly mounted on the top of the support frame. The feed inlet is fixedly mounted on one side of the top surface of the mixing tank and communicates with the interior of the mixing tank. The mixing rod is rotatably connected to the mixing tank, and one end of several mixing blades is fixedly connected to the mixing rod. The scraper is mounted on the other end of the mixing blades through the auxiliary components and contacts the inner wall of the mixing tank. The discharge port is fixedly mounted on the bottom surface of the mixing tank and communicates with the interior of the mixing tank. A first annular groove is opened on the side wall of the mixing tank. Several first heating wires are equally spaced inside the first annular groove. The unblocking component is located inside the discharge port and is connected to the bottom end of the mixing rod.

[0007] Furthermore, the top of the stirring rod penetrates through the top surface of the mixing tank and is fixedly equipped with a first motor for rotating the stirring rod.

[0008] Furthermore, the auxiliary components include an insert plate and a limiting block. One end of the insert plate is fixedly connected to the side wall of the scraper. A slot is provided at the end of the stirring blade away from the stirring rod. The other end of the insert plate is inserted into the slot and slides along the slot. The limiting block is fixedly set on the upper and lower sides of the insert plate. A first limiting groove is provided at the position where the side wall of the stirring blade contacts the limiting block. The first limiting groove is connected to the inside of the slot. The limiting block passes through the first limiting groove and slides along the first limiting groove.

[0009] Furthermore, the auxiliary components also include a spring, which is inserted into the slot, with one end of the spring fixedly connected to the inner wall of the slot and the other end of the spring fixedly connected to the insert plate.

[0010] Furthermore, the unblocking component includes an unblocking rod and unblocking blades, with the top end of the unblocking rod fixedly connected to the bottom end of the mixing rod, and several unblocking blades fixedly connected to the side wall of the unblocking rod.

[0011] Furthermore, the conveying mechanism includes a valve, a connecting hose, a conveying cylinder, a connecting port, an auger, and a second heating wire. The valve is fixedly installed at the bottom of the discharge port. The top of the connecting hose is connected to the valve. The connecting port is fixedly installed on one side of the top surface of the conveying cylinder and communicates with the inside of the conveying cylinder. The bottom of the connecting hose is connected to the connecting port. The auger is inserted into the inside of the conveying cylinder and is rotatably connected to the conveying cylinder. A second annular groove is opened on the side wall of the conveying cylinder. Several second heating wires are equally spaced inside the second annular groove. The casting pipe is fixedly installed at one end of the conveying cylinder and communicates with the inside of the conveying cylinder.

[0012] Furthermore, one end of the auger passes through the side wall of the material conveying cylinder away from the pouring pipe and is fixedly equipped with a second motor for rotating the auger.

[0013] Furthermore, the conveying mechanism also includes a threaded rod, a guide rod, a connecting block, and a limiting rod. The threaded rod is inserted between the two support frames and rotatably connected to them. The guide rod is fixedly installed between the two support frames. The connecting block is fixedly connected to one end of the bottom surface of the conveying cylinder. The connecting block is sleeved on the threaded rod and the guide rod and slides along the threaded rod and the guide rod. The limiting rod is fixedly connected to the other end of the bottom surface of the conveying cylinder. A second limiting groove is provided at the contact position between the top surface of the bottom plate and the limiting rod. The bottom end of the limiting rod is inserted into the second limiting groove and slides along the second limiting groove.

[0014] Furthermore, one end of the threaded rod passes through the side wall of the support frame and is fixedly equipped with a third motor for rotating the threaded rod.

[0015] Furthermore, a handrail for pushing the device is fixedly installed on the rear side wall of the base plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] ①The antifreeze asphalt concrete pouring device for low-temperature construction provided by this utility model has a scraper that contacts the inner wall of the mixing tank. While mixing the slurry, the scraper cleans the inner wall of the mixing tank in time, preventing the slurry from adhering to the inner wall of the mixing tank and improving the slurry output rate of the device.

[0018] ②The antifreeze asphalt concrete pouring device for low-temperature construction provided by this utility model has a spring. One end of the spring is fixedly connected to the inner wall of the slot, and the other end of the spring is fixedly connected to the insert plate. Since the spring is an elastic element, it generates a thrust between the slot and the insert plate, so that the scraper is stably attached to the inner wall of the mixing tank, thereby improving the stability of the device.

[0019] ③ The antifreeze asphalt concrete pouring device for low-temperature construction provided by this utility model has a dredging rod and a dredging blade. The dredging blade rotates along the axial direction of the dredging rod with the mixing rod, which can clear the discharge port in time and prevent the device from becoming blocked. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the antifreeze asphalt concrete pouring device for low-temperature construction in this utility model.

[0022] Figure 2 This is a schematic diagram of the specific structure of the stirring mechanism in this utility model.

[0023] Figure 3 This is an enlarged view of point A in this utility model.

[0024] Figure 4 This is a cross-sectional view of the internal structure of the feed cylinder in this utility model.

[0025] In the diagram: 1. Base plate; 2. Casters; 3. Support frame; 4. Casting pipe; 5. Mixing tank; 6. Feed inlet; 7. Mixing rod; 8. Mixing blade; 9. Scraper; 10. Discharge outlet; 11. First heating wire; 12. First annular groove; 13. First motor; 14. Insert plate; 15. Limiting block; 16. Slot; 17. First limiting groove; 18. Spring; 19. Unblocking rod; 20. Unblocking blade; 21. Valve; 22. Connecting hose; 23. Conveying cylinder; 24. Connection port; 25. Screwdriver; 26. Second heating wire; 27. Second annular groove; 28. Second motor; 29. ​​Threaded rod; 30. Guide rod; 31. Connecting block; 32. Limiting rod; 33. Second limiting groove; 34. Third motor; 35. Handrail. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 As shown, an antifreeze asphalt concrete pouring device for low-temperature construction includes a base plate 1, moving wheels 2, a support frame 3, a mixing mechanism, a conveying mechanism, and a pouring pipe 4. The moving wheels 2 are fixedly installed at the four corners of the bottom surface of the base plate 1, the support frame 3 is fixedly installed on the top surface of the base plate 1, the mixing mechanism is installed at the top of the support frame 3, and the conveying mechanism is installed on the top surface of the base plate 1 and connected to the mixing mechanism and the pouring pipe 4 respectively. Specifically, the moving wheels 2 are welded at the four corners of the bottom surface of the base plate 1, the support frame 3 is welded to the top surface of the base plate 1, the mixing mechanism is installed at the top of the support frame 3, and the conveying mechanism is installed on the top surface of the base plate 1 and connected to the mixing mechanism and the pouring pipe 4 respectively.

[0028] like Figure 2As shown, the mixing mechanism includes a mixing tank 5, a feed inlet 6, a mixing rod 7, mixing blades 8, a scraper 9, auxiliary components, a discharge port 10, first heating wires 11, and a unblocking component. The mixing tank 5 is fixedly mounted on the top of the support frame 3. The feed inlet 6 is fixedly mounted on one side of the top surface of the mixing tank 5 and communicates with the interior of the mixing tank 5. The mixing rod 7 is rotatably connected to the mixing tank 5, and one end of several mixing blades 8 is fixedly connected to the mixing rod 7. The scraper 9 is mounted on the other end of the mixing blades 8 through the auxiliary components and contacts the inner wall of the mixing tank 5. The discharge port 10 is fixedly mounted on the bottom surface of the mixing tank 5 and communicates with the interior of the mixing tank 5. A first annular groove 12 is formed on the side wall of the mixing tank 5. Several first heating wires 11 are equally spaced inside the first annular groove 12. The unblocking component is located at the discharge port 10. The mixing tank 5 is welded to the top of the support frame 3 and connected to the bottom of the stirring rod 7. Specifically, the top of the mixing tank 5 is welded with a mixing tank 5, and a feed inlet 6 is welded to one side of the top surface of the mixing tank 5. The feed inlet 6 is connected to the inside of the mixing tank 5. The stirring rod 7 is rotatably connected to the mixing tank 5, and one end of several stirring blades 8 is welded to the stirring rod 7. The scraper 9 is set at the other end of the stirring blades 8 through an auxiliary component and contacts the inner wall of the mixing tank 5. The bottom surface of the mixing tank 5 is welded with a discharge port 10, and the discharge port 10 is connected to the inner wall of the mixing tank 5. A first annular groove 12 is opened on the side wall of the mixing tank 5. Several first heating wires 11 are equally spaced inside the first annular groove 12. A dredging component is set inside the discharge port 10, and the dredging component is connected to the bottom of the stirring rod 7.

[0029] In this invention, by setting a scraper 9, which contacts the inner wall of the mixing tank 5, the inner wall of the mixing tank 5 is cleaned in time while the slurry is being mixed, preventing the slurry from adhering to the inner wall of the mixing tank 5 and improving the slurry output rate of the device.

[0030] The top end of the stirring rod 7 penetrates the top surface of the mixing tank 5 and is fixedly mounted with a first motor 13 for rotating the stirring rod 7. Specifically, the first motor 13 is fixed to the top surface of the mixing tank 5 through a motor base, and the top end of the stirring rod 7 penetrates the top surface of the mixing tank 5 and is welded to the output shaft of the first motor 13.

[0031] like Figure 3As shown, the auxiliary components include an insert plate 14 and a limiting block 15. One end of the insert plate 14 is fixedly connected to the side wall of the scraper 9. A slot 16 is provided at the end of the stirring blade 8 away from the stirring rod 7. The other end of the insert plate 14 is inserted into the slot 16 and slides along the slot 16. The limiting block 15 is fixedly disposed on the upper and lower sides of the insert plate 14. A first limiting groove 17 is provided at the position where the side wall of the stirring blade 8 contacts the limiting block 15. The first limiting groove 17 is connected to the inside of the slot 16. The limiting block 15 passes through the first limiting groove 17 and slides along the first limiting groove 15. The groove 17 slides, specifically in that one end of the insert plate 14 is welded to the side wall of the scraper 9, and a slot 16 is provided at the end of the stirring blade 8 away from the stirring rod 7. The other end of the insert plate 14 is inserted into the inside of the slot 16 and slides along the slot 16. Limiting blocks 15 are welded to the upper and lower sides of the insert plate 14. A first limiting groove 17 is provided at the position where the side wall of the stirring blade 8 contacts the limiting block 15. The first limiting groove 17 is connected to the inside of the slot 16, and the limiting block 15 passes through the first limiting groove 17 and slides along the first limiting groove 17.

[0032] The auxiliary component also includes a spring 18, which is inserted into the slot 16. One end of the spring 18 is fixedly connected to the inner wall of the slot 16, and the other end of the spring 18 is fixedly connected to the insert plate 14. Specifically, the spring 18 is inserted into the slot 16, one end of the spring 18 is welded to the inner wall of the slot 16, and the other end of the spring 18 is welded to the insert plate 14.

[0033] In this utility model, a spring 18 is provided, with one end of the spring 18 fixedly connected to the inner wall of the slot 16 and the other end of the spring 18 fixedly connected to the insert plate 14. Since the spring 18 is an elastic element, it generates a thrust between the slot 16 and the insert plate 14, so that the scraper 9 is stably attached to the inner wall of the mixing tank 5, thereby improving the stability of the device.

[0034] The unblocking assembly includes an unblocking rod 19 and unblocking blades 20. The top end of the unblocking rod 19 is fixedly connected to the bottom end of the stirring rod 7, and several unblocking blades 20 are fixedly connected to the side wall of the unblocking rod 19. Specifically, the top end of the unblocking rod 19 is welded to the bottom end of the stirring rod 7, and several unblocking blades 20 are welded to the side wall of the unblocking rod 19.

[0035] In this invention, by setting a clearing rod 19 and a clearing blade 20, the clearing blade 20 rotates along the axis of the clearing rod 19 with the stirring rod 7, which can clear the discharge port 10 in time and prevent the device from becoming blocked.

[0036] like Figure 4As shown, the conveying mechanism includes a valve 21, a connecting hose 22, a conveying cylinder 23, a connecting port 24, an auger 25, and a second heating wire 26. The valve 21 is fixedly installed at the bottom of the discharge port 10. The top end of the connecting hose 22 is connected to the valve 21. The connecting port 24 is fixedly installed on one side of the top surface of the conveying cylinder 23 and communicates with the inside of the conveying cylinder 23. The bottom end of the connecting hose 22 is connected to the connecting port 24. The auger 25 is inserted into the inside of the conveying cylinder 23 and is rotatably connected to the conveying cylinder 23. A second annular groove 27 is opened on the side wall of the conveying cylinder 23. Several second heating wires 26 are equally spaced inside the second annular groove 27. The casting pipe 4 is fixedly installed on the conveying cylinder 23. 3. One end of the material conveying cylinder 23 is connected to the inside of the material conveying cylinder 23. Specifically, a valve 21 is installed at the bottom end of the discharge port 10, the top end of the connecting hose 22 is connected to the valve 21, a connection port 24 is welded to one side of the top surface of the material conveying cylinder 23, and the connection port 24 is connected to the inside of the material conveying cylinder 23. The bottom end of the connecting hose 22 is connected to the connection port 24. The auger 25 is inserted into the inside of the material conveying cylinder 23 and is rotatably connected to the material conveying cylinder 23. A second annular groove 27 is opened on the side wall of the material conveying cylinder 23. Several second heating wires 26 are equally spaced inside the second annular groove 27. The casting pipe 4 is welded to one end of the material conveying cylinder 23 and is connected to the inside of the material conveying cylinder 23.

[0037] One end of the auger 25 penetrates the side wall of the material conveying cylinder 23 away from the pouring pipe 4 and is fixedly equipped with a second motor 28 for rotating the auger 25. Specifically, the second motor 28 is fixed to the end of the material conveying cylinder 23 away from the pouring pipe 4 through a motor base, and one end of the auger 25 penetrates the side wall of the material conveying cylinder 23 and is welded to the output shaft of the second motor 28.

[0038] The conveying mechanism also includes a threaded rod 29, a guide rod 30, a connecting block 31, and a limiting rod 32. The threaded rod 29 is inserted between the two support frames 3 and is rotatably connected to the support frames 3. The guide rod 30 is fixedly installed between the two support frames 3. The connecting block 31 is fixedly connected to one end of the bottom surface of the conveying cylinder 23. The connecting block 31 is sleeved on the threaded rod 29 and the guide rod 30 and slides along the threaded rod 29 and the guide rod 30. The limiting rod 32 is fixedly connected to the other end of the bottom surface of the conveying cylinder 23. A second limiting groove 33 is provided at the contact position between the top surface of the bottom plate 1 and the limiting rod 32. The bottom end of the limiting rod 32 is inserted into the second limiting groove 33 and slides along the second limiting groove 33. Specifically, the threaded rod 29 is inserted between two support frames 3 and is rotatably connected to the support frames 3. The guide rod 30 is welded between the two support frames 3 behind the threaded rod 29. A connecting block 31 is welded to one end of the bottom surface of the conveying cylinder 23. A through hole is opened on the connecting block 31. The connecting block 31 is sleeved on the threaded rod 29 and the guide rod 30 through the through hole and slides along the threaded rod 29 and the guide rod 30. A limiting rod 32 is welded to the other end of the bottom surface of the conveying cylinder 23. A second limiting groove 33 is opened at the position where the top surface of the bottom plate 1 contacts the limiting rod 32. The bottom end of the limiting rod 32 is inserted into the inside of the second limiting groove 33 and slides along the second limiting groove 33.

[0039] One end of the threaded rod 29 passes through the side wall of the support frame 3 and is fixedly mounted with a third motor 34 for rotating the threaded rod 29. Preferably, the third motor 34 has a self-locking function, specifically, the third motor 34 is fixed to the side wall of the support frame 3 through a motor seat, and one end of the threaded rod 29 passes through the side wall of the support frame 3 and is welded to the output shaft of the third motor 34.

[0040] A handle 35 for a pushing device is fixedly installed on the rear side wall of the base plate 1. Specifically, the handle 35 for a pushing device is welded to the rear side wall of the base plate 1.

[0041] The working principle of the antifreeze asphalt concrete pouring device for low-temperature construction in this embodiment is as follows:

[0042] The casting material is fed into the mixing tank 5 through the feed inlet 6. The first motor 13 rotates its output shaft, the mixing rod 7 rotates with the output shaft, the mixing blade 8 rotates with the mixing rod 7, the scraper 9 rotates with the mixing blade 8, the unblocking rod 19 rotates with the mixing rod 7, and the unblocking blade 20 rotates with the unblocking rod 19. The operator moves the device to the designated position using the casters 2 and the handle 35, and opens the valve 21. The mixed slurry enters the conveying cylinder 23 through the discharge port 10, the valve 21, and the connection port 24. The second motor... 28. Rotate the output shaft, and the auger 25 rotates with the output shaft. The slurry flows out of the conveying cylinder 23 and is sprayed out through the casting pipe 4 as the auger 25 rotates. At the same time, the first heating wire 11 and the second heating wire 26 heat the slurry to prevent it from solidifying at low temperature during the conveying process. The third motor 34 rotates the output shaft, and the threaded rod 29 rotates with the third motor 34. The connecting block 31 rotates with the threaded rod 29 and slides along the threaded rod 29 and the guide rod 30. The conveying cylinder 23 moves with the connecting block 31, and the casting pipe 4 moves with the conveying cylinder 23 to adjust the casting position.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-freeze asphalt concrete placement device for cold weather construction, characterized by: The utility model provides a kind of concrete mixing machine, including bottom plate (1), mobile wheel (2), support frame (3), stirring mechanism, conveying mechanism and pouring pipe (4), the mobile wheel (2) is fixedly arranged at the bottom surface four corners of the bottom plate (1), the support frame (3) is fixedly arranged on the top surface of the bottom plate (1), the stirring mechanism is arranged at the top end of the support frame (3), the conveying mechanism is arranged on the top surface of the bottom plate (1) and is connected with the stirring mechanism and pouring pipe (4) respectively; The stirring mechanism includes stirring tank (5), feed inlet (6), stirring rod (7), stirring blade (8), scraper (9), auxiliary assembly, discharge port (10), first heating wire (11) and dredging assembly, the stirring tank (5) is fixedly arranged at the top end of the support frame (3), the feed inlet (6) is fixedly arranged at one side of the top surface of the stirring tank (5) and is communicated with the inside of the stirring tank (5), the stirring rod (7) is rotatably connected with the stirring tank (5), and a plurality of the stirring blade (8) is fixedly connected with the stirring rod (7), the scraper (9) is arranged at the other end of the stirring blade (8) by the auxiliary assembly and is in contact with the inner wall of the stirring tank (5), the discharge port (10) is fixedly arranged on the bottom surface of the stirring tank (5) and is communicated with the inside of the stirring tank (5), the first annular groove (12) is formed in the side wall of the stirring tank (5), a plurality of the first heating wire (11) is equidistantly arranged in the first annular groove (12), and the dredging assembly is arranged in the discharge port (10) and is connected with the bottom end of the stirring rod (7).

2. A freeze protection asphalt concrete placement apparatus for cold weather construction according to claim 1, wherein: The top end of the stirring rod (7) penetrates the top surface of the stirring tank (5) and is fixedly provided with a first motor (13) for rotating the stirring rod (7).

3. A freeze protection asphalt concrete placement apparatus for cold weather construction as defined in claim 1, wherein: The auxiliary assembly includes an insert plate (14) and a limiting block (15), one end of the insert plate (14) is fixedly connected with the side wall of the scraper (9), the stirring blade (8) is provided with an insertion slot (16) at the end away from the stirring rod (7), the other end of the insert plate (14) is inserted into the insertion slot (16) and slides along the insertion slot (16), the limiting block (15) is fixedly arranged on the upper and lower sides of the insert plate (14), the side wall of the stirring blade (8) is provided with a first limiting slot (17) at the position in contact with the limiting block (15), the first limiting slot (17) is communicated with the inside of the insertion slot (16), and the limiting block (15) penetrates the first limiting slot (17) and slides along the first limiting slot (17).

4. A cold weather construction freeze protection asphalt concrete placement apparatus as defined in claim 3, wherein: The auxiliary assembly further includes a spring (18), the spring (18) is inserted into the insertion slot (16), one end of the spring (18) is fixedly connected with the inner wall of the insertion slot (16), and the other end of the spring (18) is fixedly connected with the insert plate (14).

5. A freeze protection asphalt concrete placement apparatus for cold weather construction as defined in claim 1 wherein: The dredging assembly includes a dredging rod (19) and a dredging blade (20), the top end of the dredging rod (19) is fixedly connected with the bottom end of the stirring rod (7), and a plurality of the dredging blade (20) is fixedly connected with the side wall of the dredging rod (19).

6. A freeze protection asphalt concrete placement apparatus for cold weather construction as defined in claim 1, wherein: The conveying mechanism comprises a valve (21), a connecting hose (22), a feeding cylinder (23), a connecting port (24), an auger (25) and a second heating wire (26), the valve (21) is fixedly arranged at the bottom end of the discharge port (10), the top end of the connecting hose (22) is connected with the valve (21), the connecting port (24) is fixedly arranged on one side of the top surface of the feeding cylinder (23) and is connected with the inside of the feeding cylinder (23), the bottom end of the connecting hose (22) is connected with the connecting port (24), the auger (25) is inserted into the inside of the feeding cylinder (23) and is rotationally connected with the feeding cylinder (23), a second annular groove (27) is arranged on the side wall of the feeding cylinder (23), and a plurality of second heating wires (26) are arranged at equal distances in the second annular groove (27), and the pouring pipe (4) is fixedly arranged at one end of the feeding cylinder (23) and is connected with the inside of the feeding cylinder (23).

7. A cold weather construction freeze protection asphalt concrete placement apparatus as defined in claim 6, wherein: The auger (25) penetrates through the side wall of the feeding cylinder (23) away from one end of the pouring pipe (4) and is fixedly provided with a second motor (28) for rotating the auger (25).

8. A freeze protection asphalt concrete placement apparatus for cold weather construction according to claim 6, wherein: The conveying mechanism further comprises a threaded rod (29), a guide rod (30), a connecting block (31) and a limiting rod (32), the threaded rod (29) is inserted between the two support frames (3) and is rotationally connected with the support frames (3), the guide rod (30) is fixedly arranged between the two support frames (3), the connecting block (31) is fixedly connected with one end of the bottom surface of the feeding cylinder (23), the connecting block (31) is sleeved on the threaded rod (29) and the guide rod (30) and slides along the threaded rod (29) and the guide rod (30) through the threaded rod (29), the limiting rod (32) is fixedly connected with the other end of the bottom surface of the feeding cylinder (23), a second limiting groove (33) is arranged on the position where the top surface of the bottom plate (1) is in contact with the limiting rod (32), the bottom end of the limiting rod (32) is inserted into the inside of the second limiting groove (33) and slides along the second limiting groove (33).

9. A cold weather construction freeze protection asphalt concrete placement apparatus as defined in claim 8, wherein: The threaded rod (29) penetrates through the side wall of the support frame (3) and is fixedly provided with a third motor (34) for rotating the threaded rod (29).

10. A freeze protection asphalt concrete placement apparatus for cold weather construction as defined in claim 1, wherein: The bottom plate (1) is fixedly provided with a handrail (35) for a pushing device at the rear end.

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