Concrete discharge port anti-blocking device

Abstract

The application relates to a concrete discharge port anti-blocking device, which comprises a rack, a discharge port arranged on the rack, a discharging sleeve coaxially arranged outside the discharge port and a driving mechanism for driving the discharging sleeve to rotate, the discharging sleeve is rotationally arranged at the lower end of the discharge port, the driving mechanism comprises a driving piece arranged on the rack, a gear arranged on the free end of the driving piece and a gear ring coaxially fixed on the outer wall of the discharging sleeve, and the gear ring can be engaged with the gear. In the process of discharging concrete, the discharging sleeve continuously rotates, so that the relative position between the discharging sleeve and the concrete is generated, the concrete is not easily adhered to the inner wall of the discharging sleeve and is hindered to move, and thus the downward movement process of the concrete is not easily affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete mixers, in particular to a concrete discharge port anti-blocking device. BACKGROUND

[0002] In the process of preparing concrete, different kinds of materials need to be stirred and premixed. The premixed materials gather at the discharge port position of the lower end of the storage bin under the action of gravity, and then are discharged through the discharge port.

[0003] However, due to the viscosity of the materials, after the materials are discharged from the discharge port, part of the materials will adhere to the inner wall of the discharge port. In the subsequent discharging process, the materials will be hindered by the materials adhering to the inner wall of the discharge port, thereby affecting the falling speed of the materials and causing the discharge port to be blocked. After the discharge port is blocked, a dredging rod needs to be inserted into the discharge port for manual dredging, thereby reducing the overall discharging efficiency.

[0004] Therefore, a new technical solution is needed to solve the above problems. SUMMARY

[0005] In order to prevent blockage during the discharging of concrete, the present application provides a concrete discharge port anti-blocking device.

[0006] The concrete discharge port anti-blocking device provided by the present application adopts the following technical solution:

[0007] A concrete discharge port anti-blocking device, comprising a rack, a discharge port arranged on the rack, a discharging sleeve coaxially arranged outside the discharge port, and a driving mechanism for driving the discharging sleeve to rotate, wherein the discharging sleeve is arranged at the lower end of the discharge port, the driving mechanism comprises a driving member arranged on the rack, a gear arranged on the free end of the driving member, and a gear ring coaxially fixed to the outer wall of the discharging sleeve, and the gear ring can engage with the gear.

[0008] By adopting the above technical solution, the discharging sleeve continuously rotates during the discharging of concrete, thereby causing a relative position between the discharging sleeve and the concrete, preventing the concrete from adhering to the inner wall of the discharging sleeve and being hindered from moving, and preventing the downward movement of the concrete from being affected.

[0009] Optionally, a plurality of guide bars are arranged axially on the inner wall of the discharging sleeve, the guide bars are arranged in a spiral manner, and the upper end of the spiral line of the guide bars faces the rotating direction of the discharging sleeve.

[0010] By adopting the technical scheme, the guide strip applies a force obliquely downward to the concrete entering the inside of the discharging sleeve and perpendicular to the guide strip, so that the concrete is subjected to more downward force and is more likely to move downward, and the concrete can also be driven to rotate along the direction of the discharging sleeve, and vortex is generated downward when the concrete is subjected to gravity, so that the concrete is more likely to flow downward and the generation of blockage is reduced.

[0011] Optionally, a plurality of stirring rods are circumferentially arranged on the inner wall of the discharging sleeve, upper ends of the stirring rods are inserted into the discharge port, and the stirring rods can abut against the inner wall of the discharge port.

[0012] By adopting the technical scheme, the stirring rods drive the concrete in the discharge port to rotate, so that the concrete is less likely to adhere to the inner wall of the discharge port, and the discharging process of the concrete is more smooth.

[0013] Optionally, the stirring rods are arranged in a spiral shape, and upper ends of helical lines of the stirring rods face the rotating direction of the discharging sleeve.

[0014] By adopting the technical scheme, the stirring rods arranged in a spiral shape apply a force obliquely downward to the concrete, so that the concrete is more likely to flow downward and is less likely to be blocked.

[0015] Optionally, a reinforcing member is arranged between adjacent stirring rods, and the reinforcing member can be attached to the inner wall of the discharging sleeve.

[0016] By adopting the technical scheme, the reinforcing member enhances the strength of the stirring rods, so that the stirring rods are less likely to be deformed when subjected to the impact of the concrete, and the stirring of the concrete by the stirring rods is less likely to be affected.

[0017] Optionally, a vibrating mechanism for vibrating the discharge port is further arranged on the rack, the vibrating mechanism comprises a knocking rod circumferentially arranged on the outer wall of the discharge port and a driving rod fixed to the outer wall of the discharging sleeve, an elastic member is arranged on the knocking rod and drives one end of the knocking rod to abut against the outer wall of the discharge port, and the driving rod can abut against the other end of the knocking rod away from the outer wall of the discharge port and push the other end of the knocking rod away from the discharge port.

[0018] By adopting the technical scheme, the knocking rod applies vibration to the discharge port, so that the concrete is less likely to adhere to the inner wall of the discharge port, the downward movement of the concrete is less likely to be hindered during the discharging process of the concrete, and the discharging process of the concrete is stable.

[0019] Optionally, a knocking ring is coaxially fixed to the outer wall of the discharge port, and the knocking rod can knock against the outer wall of the knocking ring.

[0020] By adopting the above technical scheme, the knocking rod will not directly collide with the discharge port, so that the discharge port is not easy to deform under vibration, the rotation of the stirring rod is not easy to be hindered, and the discharging of the concrete is not easy to be affected.

[0021] Optionally, the rack is further provided with a protective sleeve for preventing concrete from splashing, the protective sleeve is coaxially sleeved outside the discharging sleeve, and a gap is left between the protective sleeve and the discharging sleeve.

[0022] By adopting the above technical scheme, when the concrete splashes under the action of the centrifugal force generated by the concrete flowing out of the lower end of the discharging sleeve, the splashing concrete is blocked by the protective sleeve, so that the concrete can drip downward along the inner wall of the protective sleeve, and the concrete is not easy to directly affect the production environment.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The relative movement between the discharging sleeve and the concrete is caused by the rotation of the discharging sleeve, so that the concrete is not easy to adhere to the inner wall of the discharging sleeve, the downward movement of the concrete is not easy to be hindered, and the discharging process of the concrete is not easy to be blocked.

[0025] 2. The obliquely downward force is applied to the concrete by the spiral stirring rod and the guide strip, so that the downward movement of the concrete is more easy to be caused, and the discharge port and the discharging sleeve are not easy to be blocked by the concrete. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the embodiment of the present application is shown in the figure;

[0027] Figure 2 The figure shows the internal structure of the discharging sleeve and the discharge port;

[0028] Figure 3 The figure is an enlarged view of A of the figure. Figure 2

[0029] In the figure, 1 is a rack, 11 is a protective sleeve, 2 is a discharge port, 3 is a discharging sleeve, 31 is a guide strip, 32 is a stirring rod, 33 is a reinforcing piece, 34 is a connecting piece, 341 is a sliding groove, 35 is a limiting piece, 36 is a limiting block, 4 is a driving mechanism, 41 is a driving piece, 42 is a gear, 43 is a gear ring, 5 is a vibration mechanism, 51 is a knocking rod, 52 is a driving rod, 53 is a knocking hammer, 54 is a knocking ring, and 55 is an elastic piece. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] ​The concrete discharge port anti-blocking device disclosed by the application comprises a rack 1, a discharge port 2 arranged on the rack 1, a discharging sleeve 3 coaxially arranged outside the discharge port 2, and a driving mechanism 4 for driving the discharging sleeve 3 to rotate. Figure 1 The discharge port 2 can be fixed on the lower end surface of the mixer by means of bolts and is in communication with the inner cavity of the mixer. The concrete in the mixer can be discharged through the discharge port 2. The discharging sleeve 3 is rotatably connected to the outer wall of the discharge port 2, and the lower end surface of the discharging sleeve 3 is lower than the lower end surface of the discharge port 2. The driving mechanism 4 comprises a driving member 41 arranged on the rack 1, a gear 42 arranged on the free end of the driving member 41, and a gear ring 43 coaxially fixed on the outer wall of the discharging sleeve 3. In this embodiment, the driving member 41 is selected as an electric motor. The driving member 41 is fixed on the rack 1 by means of bolts, and the gear ring 43 can be engaged with the gear 42, so that the discharging sleeve 3 is driven to rotate by the driving member 41. In the process of rotating the discharging sleeve 3, the concrete in the discharging sleeve 3 is driven to rotate, so that the concrete in the discharging sleeve 3 is subjected to the action of centrifugal force, and at the same time, the concrete in the discharging sleeve 3 is subjected to the action of gravity and moves downward spirally, thereby accelerating the discharge of the concrete. In the process of moving the concrete, the concrete is not easily blocked by the materials adhered to the discharging sleeve 3, and the materials in the concrete are not easily extruded and stuck in the discharging sleeve 3, so that the concrete is not easily blocked in the process of discharging.

[0032] In order to better drive the concrete to move downward in the process of rotating the discharging sleeve 3, a plurality of guide strips 31 are integrally formed on the inner wall of the discharging sleeve 3 in the circumferential direction. The guide strips 31 are arranged in a spiral manner, and the upper end of the spiral line of the guide strips 31 faces the rotating direction of the discharging sleeve 3. The distance between the side wall of the guide strips 31 close to the axis of the discharging sleeve 3 and the axis of the discharging sleeve 3 is greater than the inner cavity radius of the discharge port 2. Therefore, when the concrete enters the discharging sleeve 3 and the discharging sleeve 3 rotates, the guide strips 31 apply a force to the concrete perpendicular to the side wall of the guide strips 31 facing the rotating direction, so that the concrete has a tendency to move downward obliquely, and the concrete is more easily moved downward and is not easily blocked in the discharging sleeve 3.

[0033] As shown in Figure 2 Since the discharge port 2 is fixed relative to the mixing barrel, the concrete can still be blocked when passing through the discharge port 2, so a plurality of stirring rods 32 are arranged on the upper end of the inner wall of the discharging sleeve 3 in the circumferential direction. The upper end of the stirring rod 32 is inserted into the discharge port 2, and the stirring rod 32 can be in close contact with the inner wall of the discharge port 2. The stirring rod 32 is arranged in a spiral manner, and the upper end of the spiral line of the stirring rod 32 faces the rotating direction of the discharging sleeve 3. In the process of rotating the discharging sleeve 3 to drive the stirring rod 32, the stirring rod 32 applies an obliquely downward force to the concrete in the discharge port 2, so that the concrete is more easily flowed downward, and the stirring rod 32 scrapes on the inner wall of the discharge port 2, so that the concrete is not easily adhered to the inner wall of the discharge port 2, thereby reducing the blocking of the discharge port 2 by the concrete.

[0034] As Figure 2 and Figure 3 shown, because the lower end of the stirring rod 32 is connected with the lower discharge sleeve 3, the stirring rod 32 is easy to deform when it is impacted by the concrete, thereby affecting the effect of discharging the concrete, therefore, the adjacent stirring rods 32 are provided with the reinforcing pieces 33 connecting the adjacent stirring rods 32, the distance between the side wall of the reinforcing piece 33 close to the axis of the lower discharge sleeve 3 and the axis of the lower discharge sleeve 3 is smaller than the distance between the side wall of the stirring rod 32 close to the axis of the lower discharge sleeve 3 and the axis of the lower discharge sleeve 3. The connecting piece 34 is sleeved on the stirring rod 32, the side wall of the connecting piece 34 away from the axis of the discharge port 2 is provided with the sliding groove 341 penetrating the upper and lower end faces of the connecting piece 34, the stirring rod 32 is embedded in the sliding groove 341, the connecting piece 34 can vertically slide along the stirring rod 32, the ends of the reinforcing pieces 33 are respectively fixed with the connecting pieces 34 located at the same height and arranged on the adjacent stirring rods 32. The limiting pieces 35 limiting the distance between the two reinforcing pieces 33 are further arranged between the adjacent reinforcing pieces 33, the limiting pieces 35 are vertically arranged and the ends thereof are respectively connected with one of the reinforcing pieces 33, the distance between the side wall of the limiting piece 35 close to the axis of the discharge port 2 and the axis of the discharge port 2 is smaller than the distance between the side wall of the stirring rod 32 close to the axis of the discharge port 2 and the axis of the discharge port 2. The limiting blocks 36 are arranged on the side wall of the stirring rod 32 close to the reinforcing pieces 33, the limiting blocks 36 are arranged along the length direction of the stirring rod 32, the adjacent limiting blocks 36 are provided with gaps, the connecting piece 34 is arranged between the adjacent limiting blocks 36, thereby guiding the moving distance of the connecting piece 34 by the limiting blocks 36, so that the connecting piece 34 will not be separated from the stirring rod 32. And the connecting piece 34 can also vertically move when the rotating direction of the stirring rod 32 is different, thereby scraping off the concrete on the side wall of the stirring rod 32 facing the rotating direction thereof.

[0035] As Figure 1As shown, due to the stirring rod 32 and the guide bar 31 in the process of pushing the concrete to move, there will still be concrete adhesion, so the rack 1 is also provided with a vibration mechanism 5 for driving the discharge port 2 to generate vibration, the vibration mechanism 5 includes a plurality of knocking rods 51 arranged circumferentially on the outer wall of the discharge port 2 and a driving rod 52 fixed to the outer wall of the discharge sleeve 3. The knocking rod 51 is horizontally arranged, and the middle part is rotatably connected to the outer wall of the discharge port 2. The rotation axis of the knocking rod 51 is vertically arranged. A knocking hammer 53 is arranged on one end of the knocking rod 51. A resilient element for driving the knocking hammer 53 to rotate towards the discharge port 2 is also arranged on the knocking rod 51. The resilient element 55 is selected as a torsion spring in this embodiment. The axis of the torsion spring coincides with the axis of the knocking rod 51. One end of the torsion spring is connected to the discharge port 2, and the other end of the torsion spring is connected to the knocking rod 51. The driving rod 52 is fixed to the outer wall of the discharge sleeve 3, and the end of the driving rod 52 away from the discharge sleeve 3 is vertically arranged and can abut against the end of the knocking rod 51 away from the knocking hammer 53 and drive the knocking hammer 53 to move away from the discharge port 2. The driving rod 52 includes a horizontal rod and a vertical rod. The horizontal rod is fixed to the outer wall of the discharge sleeve 3. The vertical rod is rotatably connected to the horizontal rod. The side of the vertical rod not in contact with the knocking rod 51 can abut against the horizontal rod. The rotation axes of the vertical rod and the horizontal rod perpendicularly intersect the axis of the discharge port 2. Under the driving of the driving rod 52, the knocking hammer 53 moves away from the discharge port 2. Then, when the driving rod 52 is disconnected from the knocking rod 51, the knocking hammer 53 moves towards the discharge port 2 under the driving of the resilient element 55 and knocks on the discharge port 2 to vibrate the concrete inside the discharge port 2, so that the concrete is not easily adhered to the stirring rod 32 and the guide bar 31.

[0036] As shown in the figure, Figure 1 After the knocking hammer 53 continuously knocks on the same position of the discharge port 2, the knocked part of the discharge port 2 is easily deformed, which will affect the rotation of the stirring rod 32 and the discharging of the concrete. Therefore, a knocking ring 54 is coaxially fixed to the outer wall of the discharge port 2. The knocking ring 54 has a ring structure of two semicircles and is connected head to tail. The knocking rod 51 is rotatably connected to the knocking ring 54, and the knocking hammer 53 can impact the outer wall of the knocking ring 54, so that the discharge port 2 is not directly impacted by the knocking hammer 53, and the discharge port 2 is not easily damaged. The fastening position of the knocking ring 54 can be adjusted to adjust the direction of the vibration of the discharge port 2, so that the inner wall of the discharge port 2 is more difficult to adhere to the concrete.

[0037] As shown in the figure, Figure 1As shown, since the feeding sleeve 3 rotates continuously during the feeding of the concrete, the concrete at the lower end opening of the feeding sleeve 3 may splash, therefore, the rack 1 is further provided with a protective sleeve 11 for preventing the splashing of the concrete, the protective sleeve 11 is coaxially arranged outside the feeding sleeve 3, and a gap is left between the protective sleeve 11 and the feeding sleeve 3, and the lower end surface of the protective sleeve 11 is lower than the lower end surface of the feeding sleeve 3. When the feeding sleeve 3 rotates and causes the concrete to splash, the splashing concrete is blocked by the protective sleeve 11, so that the concrete can flow downward along the inner wall of the protective sleeve 11, and the concrete is not easy to pollute the working environment.

[0038] The implementation principle of the embodiment is that: during the feeding, the driving member 41 drives the feeding sleeve 3 and the stirring rod 32 to rotate, so that the stirring rod 32 and the guide strip 31 apply a downward force, so that the concrete is more easily moved downward through the discharge port 2 and the feeding sleeve 3, and during the rotation of the feeding sleeve 3, the driving rod 52 is in contact with the knocking rod 51 to drive the knocking rod 51 to move away from the knocking ring 54 with one end of the knocking hammer 53, and after the driving rod 52 and the knocking rod 51 are disconnected, the knocking hammer 53 strikes the knocking ring 54, so that the discharge port 2 vibrates.

[0039] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A concrete discharge port anti-blocking device, characterized in that: The device includes a frame (1), a discharge port (2) disposed on the frame (1), a feeding sleeve (3) coaxially disposed outside the discharge port (2), and a drive mechanism (4) for driving the feeding sleeve (3) to rotate. The feeding sleeve (3) is rotatably disposed at the lower end of the discharge port (2). The drive mechanism (4) includes a drive member (41) disposed on the frame (1), a gear (42) disposed on the free end of the drive member (41), and a gear ring (43) coaxially fixed on the outer wall of the feeding sleeve (3). The gear ring (43) can mesh with the gear (42). The inner wall of the feeding sleeve (3) is provided with a plurality of guide strips (31) in an axial direction. The guide strips (31) are spirally arranged, and the upper end of the spiral line of the guide strips (31) faces the rotation direction of the feeding sleeve (3). The upper end of the inner wall of the feeding sleeve (3) is provided with a plurality of stirring rods (32), the upper end of the stirring rods (32) is inserted into the discharge port (2), and the stirring rods (32) can abut against the inner wall of the discharge port (2); The frame (1) is also provided with a vibration mechanism (5) that drives the discharge port (2) to vibrate. The vibration mechanism (5) includes a striking rod (51) circumferentially arranged on the outer wall of the discharge port (2) and a driving rod (52) fixed on the outer wall of the feeding sleeve (3). The striking rod (51) is horizontally arranged, and the middle part of the striking rod (51) is rotatably connected to the outer wall of the discharge port (2). The rotation axis of the striking rod (51) is vertically arranged. The striking rod (51) is provided with an elastic element (55) that drives one end of it to abut against the outer wall of the discharge port (2). The end of the driving rod (52) away from the feeding sleeve (3) is vertically arranged. The driving rod (52) can abut against the end of the striking rod (51) away from the outer wall of the discharge port (2) and push the end of the striking rod (51) close to the discharge port (2) away from the discharge port (2). Each adjacent stirring rod (32) is provided with a reinforcing member (33) to connect the adjacent stirring rods (32). A connecting member (34) is sleeved on the stirring rod (32). A sliding groove (341) is opened on the side wall of the connecting member (34) away from the axis of the discharge port (2). The sliding groove (341) passes through the upper and lower end faces of the connecting member (34). The stirring rod (32) is embedded in the sliding groove (341). The connecting member (34) can slide vertically along the stirring rod (32). The ends of the reinforcing members (33) are respectively located at the same height and provided on the adjacent stirring rods. The connecting piece (34) on the rod (32) is fixed, and a limiting piece (35) is provided between adjacent reinforcing pieces (33) to limit the distance between the two reinforcing pieces (33). The limiting piece (35) is vertically arranged and its end is connected to a reinforcing piece (33) respectively. Several limiting blocks (36) are provided on the side wall of the stirring rod (32) near the reinforcing piece (33). The limiting blocks (36) are arranged along the length direction of the stirring rod (32). There is a gap between adjacent limiting blocks (36). The connecting piece (34) is arranged between adjacent limiting blocks (36).

2. The concrete discharge port anti-blocking device according to claim 1, characterized in that: The stirring rod (32) is arranged in a spiral, and the upper end of the spiral of the stirring rod (32) faces the rotation direction of the material sleeve (3).

3. A concrete discharge port anti-blocking device according to claim 1, characterized in that: A reinforcing member (33) is provided between each adjacent stirring rod (32), and the reinforcing member (33) can keep in close contact with the inner wall of the feeding sleeve (3).

4. The concrete discharge port anti-blocking device according to claim 1, characterized in that: A striking ring (54) is coaxially fixed on the outer wall of the discharge port (2), and the striking rod (51) can strike the outer wall of the striking ring (54).

5. The anti-blocking device for a concrete discharge port according to claim 1, characterized in that: The frame (1) is also provided with a protective sleeve (11) to prevent concrete from splashing. The protective sleeve (11) is coaxially sleeved outside the unloading sleeve (3), and there is a gap between the protective sleeve (11) and the unloading sleeve (3).

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