Device for preventing concrete from scattering at discharge port of material distributing machine

Abstract

The utility model discloses a concrete scattering prevention device for a material distributing machine discharge port, which relates to the technical field of concrete distribution, and comprises a discharge pipe, an outer pipeline and a sealing plate, the discharge pipe is fixedly connected with the outer pipeline, one end of the outer pipeline is fixedly connected with an inner pipeline, a spring is arranged between the outer pipeline and the inner pipeline, and the sealing plate is fixedly connected with the outer pipeline. The middle shaft rod comprises an outer pipeline and a spring, one end of the spring is fixedly connected with the outer pipeline, the other end of the spring is fixedly connected with a fixing ring, the outer side wall of the fixing ring is fixedly connected with a protruding block, and the inner side wall of the outer pipeline is provided with a corrugated groove. The length of the portion, stretching into the outer pipeline, of the middle shaft rod is controlled through the clamping position of the corrugated groove and the protruding block, so that the sealing plate moves to an outlet of the outer pipeline, the effect of sealing falling concrete is achieved, and the problem that the concrete is scattered in the moving process of the distributing machine is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete placing, in particular to a device for preventing concrete from scattering at a discharging port of a placing machine. Background Art

[0002] A concrete placing boom is a concrete equipment for conveying and distributing concrete that is connected to the outlet of a concrete trailer pump. As an auxiliary equipment of a concrete pump, it is connected through a standard conveying pipe, just like a manipulator. It can quickly and accurately deliver concrete to any pouring position on the working surface and perform continuous pouring, thus expanding the concrete pumping range, effectively solving the problem of concrete distribution for wall pouring, and better solving the concrete distribution problem of concrete transportation. A concrete placing boom consists of a steel structure support, longitudinal and transverse walking mechanisms, a concrete storage hopper, safety devices, a hydraulic system, an electrical control system, etc.

[0003] For example, the patent publication number CN214117549U, "A pumping concrete distribution device", includes a telescopic mechanism and an opening and closing valve mechanism, wherein the telescopic mechanism includes a hollow front connecting rod, a middle connecting rod and a rear connecting rod, the opening and closing valve mechanism includes a valve plate and an opening and closing assembly, the middle connecting rod is slidably connected to the front connecting rod, the rear connecting rod is slidably connected to the middle connecting rod, the diameter of the rear connecting rod is smaller than that of the middle connecting rod, and the diameter of the middle connecting rod is smaller than that of the front connecting rod. When pouring a column or a wall, the discharge port of the rear connecting rod is close to the bottom of the column or the wall, thereby reducing the degree of concrete segregation and reducing the honeycombed surface at the bottom of the column or the wall.

[0004] However, in the prior art, a concrete storage hopper is arranged inside the concrete placing boom, and a traveling mechanism controls the concrete placing boom to move while pouring concrete in the building area below. However, every time the concrete placing boom moves to an edge position, it is necessary to change direction and adjust the pouring position of the concrete placing boom. Due to the lack of a temporary opening control device for concrete unloading, part of the concrete is scattered outside the area during the turning process, resulting in a waste of building materials. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that whenever a concrete placing boom moves to an edge position, it is necessary to change direction to adjust the pouring position of the concrete placing boom, and due to the lack of a temporary opening control device for concrete unloading, part of the concrete is scattered outside the area during the turning movement, resulting in waste of building materials. A device for preventing concrete from scattering at the material placing boom discharge port is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for preventing concrete from scattering at the discharge port of a concrete placing machine, comprising a discharge pipe, an outer pipe and a sealing plate, the discharge pipe and the outer pipe are fixedly connected, one end of the outer pipe is fixedly connected to the inner pipe, a spring is arranged between the outer pipe and the inner pipe, one end of the spring is fixedly connected to the outer pipe, the other end of the spring is fixedly connected to a fixing ring, the outer side wall of the fixing ring is fixedly connected to a protrusion, the inner side wall of the outer pipe is provided with a corrugated groove, the corrugated groove is slidably connected to the protrusion, a central axis rod is connected to the center position of the fixing ring, and one end of the central axis rod is connected to the sealing plate.

[0007] Preferably, a handle is fixedly connected to one side of the sealing plate, and a ring is fixedly connected to the other side of the sealing plate.

[0008] Preferably, the inner side wall of the collar is fixedly connected to an outer wave rod, and the outer side wall of the central axis rod is fixedly connected to an inner wave rod.

[0009] Preferably, the outer side wall of the spring is coated with a rust inhibitor.

[0010] Preferably, the side wall of the fixed ring is rotatably connected to a rotating ring.

[0011] Preferably, a connecting rod is fixedly connected between the rotating ring and the central axis rod.

[0012] Preferably, a shovel opening is fixedly connected to the outer edge of the side of the sealing plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting the crest and trough of the corrugated groove as the inner limit point and the outer limit point of the central axis rod, the position where the corrugated groove and the protrusion are mutually engaged is used to control the length of the central axis rod extending into the outer pipe, so that the sealing plate moves to the outlet of the outer pipe, thereby achieving a blocking effect on the falling of concrete and solving the problem of concrete scattering during the movement of the placing crane.

[0015] 2. In the utility model, inner wave rods are arranged along the periphery of the central axis rod, and outer wave rods are arranged along the periphery of the inner wall of the sleeve ring. Whenever the sealing plate switches its state, the central axis rod will rotate a fixed angle in the sleeve ring, so that squeezing occurs between the inner wave rod and the outer wave rod. The separation of the outer wave rod and the inner wave rod will trigger the shaking of the sealing plate, thereby shaking off the concrete adhering to the sealing plate, avoiding the concrete from condensing on the sealing plate and reducing the workload of the subsequent cleaning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a device for preventing concrete from scattering at a discharging port of a concrete placing machine;

[0017] Figure 2 A side sectional view of a device for preventing concrete from scattering at a discharging port of a concrete placing machine is provided in the utility model;

[0018] Figure 3 This is a schematic diagram of the external structure of the central axis rod of a device for preventing concrete from scattering at a discharging port of a concrete placing machine proposed by the utility model;

[0019] Figure 4 The utility model provides a structural schematic diagram of the inner and outer pipes and corrugated grooves in a device for preventing concrete from scattering at a discharging port of a concrete placing machine;

[0020] Figure 5 The utility model provides a structural disassembly schematic diagram of a sealing plate in a device for preventing concrete from scattering at a discharging port of a concrete placing machine;

[0021] Figure 6 The utility model provides a plane unfolding effect diagram of a corrugated groove in a device for preventing concrete from scattering at a discharging port of a concrete placing machine.

[0022] Legend: 1. Discharge pipe; 2. Outer pipe; 3. Inner pipe; 4. Corrugated groove; 5. Spring; 6. Fixed ring; 7. Rotating ring; 8. Bump; 9. Connecting rod; 10. Center axis rod; 11. Closing plate; 12. Shovel mouth; 13. Handle; 14. Inner corrugated rod; 15. Ring; 16. Outer corrugated rod. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1

[0026] like Figure 1-6As shown, the utility model provides a device for preventing concrete from scattering at the discharge port of a concrete placing machine, comprising a discharge pipe 1, an outer pipe 2 and a sealing plate 11, the discharge pipe 1 and the outer pipe 2 are fixedly connected, one end of the outer pipe 2 is fixedly connected to the inner pipe 3, a spring 5 is arranged between the outer pipe 2 and the inner pipe 3, one end of the spring 5 is fixedly connected to the outer pipe 2, the other end of the spring 5 is fixedly connected to a fixing ring 6, the outer side wall of the fixing ring 6 is fixedly connected to a protrusion 8, the inner side wall of the outer pipe 2 is provided with a corrugated groove 4, the corrugated groove 4 is slidably connected to the protrusion 8, a central axis rod 10 is connected to the center position of the fixing ring 6, and one end of the central axis rod 10 is connected to the sealing plate 11.

[0027] The specific settings and functions of this embodiment are described in detail below. When in use, the handle 13 is used to push the sealing plate 11 inward, so that the sealing plate 11 drives the central axis rod 10 to move inward, so that the central axis rod 10 drives the fixed ring 6 and the rotating ring 7 to move inward, and then the protrusion 8 on the outer side of the fixed ring 6 slides in the corrugated groove 4, so that the protrusion 8 moves from the outer limit point of the corrugated groove 4 to the inner limit point, and then the fixed ring 6 moves the central axis rod 10 and the sealing plate 11 inward through the rotating ring 7, so that the sealing plate 11 moves to the outlet of the outer pipe 2, so as to achieve the blocking effect of concrete falling, and solve the problem of concrete scattering during the movement of the placing machine;

[0028] After the position of the concrete placing machine is moved, it is necessary to connect the discharge port of the concrete placing machine again and push the sealing plate 11 inward again so that the protrusion 8 leaves the inner limit position of the corrugated groove 4. Then, the spring 5 exerts an outward elastic force on the fixing ring 6 so that the fixing ring 6 drives the central axis rod 10 and the sealing plate 11 to slide outward, thereby separating the sealing plate 11 from the outlet of the outer pipe 2, and finally allowing the concrete to be discharged freely.

[0029] Embodiment 2

[0030] like Figure 2 , Figure 3 and Figure 5 As shown, a handle 13 is fixedly connected to one side of the sealing plate 11, and a collar 15 is fixedly connected to the other side of the sealing plate 11. An outer wave rod 16 is fixedly connected to the inner side wall of the collar 15, and an inner wave rod 14 is fixedly connected to the outer side wall of the central axis rod 10. The outer side wall of the spring 5 is coated with a rust preventive. A rotating ring 7 is rotatably connected to the side wall of the fixed ring 6. A connecting rod 9 is fixedly connected between the rotating ring 7 and the central axis rod 10. A shovel mouth 12 is fixedly connected to the outer edge of the side of the sealing plate 11.

[0031] The effect achieved by the entire embodiment is that when the sealing plate 11 is pressed by the handle 13 and the opening and closing of the sealing plate 11 and the outlet of the outer pipe 2 are adjusted, the central axis rod 10 rotates inside the ring 15. Every time the sealing plate 11 switches its state, the central axis rod 10 rotates a fixed angle in the ring 15, so that squeezing occurs between the inner wave rod 14 and the outer wave rod 16. The inner wave rod 14 and the outer wave rod 16 are both supported by elastic materials. Every time the two are deformed after contact and move away from each other, the shaking of the sealing plate 11 is triggered, and the concrete adhered to the sealing plate 11 is shaken off.

[0032] The use method and working principle of the device: when the concrete placing machine is moved and it is necessary to prevent the concrete from being scattered, the cover plate 11 is pushed inward by the handle 13, so that the cover plate 11 drives the central axis rod 10 to move inward, so that the central axis rod 10 drives the fixed ring 6 and the rotating ring 7 to move inward, and then the protrusion 8 on the outer side of the fixed ring 6 slides in the corrugated groove 4, so that the protrusion 8 moves from the outer limit point of the corrugated groove 4 to the inner limit point, and the fixed ring 6 moves the central axis rod 10 and the cover plate 11 inward through the rotating ring 7, so that the cover plate 11 moves to the outlet of the outer pipe 2;

[0033] When the concrete is discharged inside the concrete placing machine, the sealing plate 11 is pushed inward again, so that the protrusion 8 leaves the inner limit point of the corrugated groove 4. The spring 5 exerts an outward elastic force on the fixing ring 6, so that the fixing ring 6 drives the central axis rod 10 and the sealing plate 11 to slide outward, so that the sealing plate 11 is separated from the outlet of the outer pipe 2.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for preventing concrete from scattering at a discharging port of a concrete placing machine, comprising a discharging pipe (1), an outer pipe (2) and a sealing plate (11), characterized in that: The discharge pipe (1) is fixedly connected to the outer pipe (2), one end of the outer pipe (2) is fixedly connected to the inner pipe (3), a spring (5) is arranged between the outer pipe (2) and the inner pipe (3), one end of the spring (5) is fixedly connected to the outer pipe (2), the other end of the spring (5) is fixedly connected to a fixing ring (6), the outer side wall of the fixing ring (6) is fixedly connected to a protrusion (8), the inner side wall of the outer pipe (2) is provided with a corrugated groove (4), the corrugated groove (4) is slidably connected to the protrusion (8), the center position of the fixing ring (6) is connected to a central axis rod (10), and one end of the central axis rod (10) is connected to a sealing plate (11).

2. The device for preventing concrete from scattering at the material placing machine outlet according to claim 1, characterized in that: A handle (13) is fixedly connected to one side of the sealing plate (11), and a collar (15) is fixedly connected to the other side of the sealing plate (11).

3. The device for preventing concrete from scattering at the material placing machine outlet according to claim 2, characterized in that: The inner side wall of the sleeve ring (15) is fixedly connected to an outer wave rod (16), and the outer side wall of the central axis rod (10) is fixedly connected to an inner wave rod (14).

4. The device for preventing concrete from scattering at a discharging port of a concrete placing machine according to claim 1, characterized in that: The outer side wall of the spring (5) is coated with a rust preventive.

5. The device for preventing concrete from scattering at the material placing machine outlet according to claim 1, characterized in that: The side wall of the fixed ring (6) is rotatably connected to a rotating ring (7).

6. The device for preventing concrete from scattering at the material placing machine outlet according to claim 5, characterized in that: A connecting rod (9) is fixedly connected between the rotating ring (7) and the central axis rod (10).

7. The device for preventing concrete from scattering at a discharging port of a concrete placing machine according to claim 1, characterized in that: A shovel opening (12) is fixedly connected to the outer edge of the side of the sealing plate (11).

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