Steel bar cement paste brushing device

Abstract

The utility model discloses a reinforcing steel bar cement paste brushing device which comprises a cement paste container and a discharging head, and a first threaded connecting piece is arranged below the cement paste container. The discharging head comprises a second threaded connecting piece and a discharging pipe which are communicated with each other; the second threaded connecting piece and the first threaded connecting piece are connected through matched threads. A base table is arranged in the second threaded connecting piece. A material opening plugging part is arranged at the joint position of the second threaded connecting piece and the discharging pipe; the material opening plugging component comprises a sealing cover, the sealing cover is provided with a hinge part, and the hinge part is hinged to the base station through a connecting pin. When the reinforcing steel bar cement paste brushing device is used, the reinforcing steel bar cement paste brushing device is located over a reinforcing steel bar, along with gradual insertion of the reinforcing steel bar, the reinforcing steel bar makes contact with the sealing cover and jacks up the sealing cover so that the sealing cover can be in an open state, and at the moment, cement paste gradually flows out of the discharging pipe and makes contact with the reinforcing steel bar. And compared with manual cement paste brushing, brushing is more uniform, and the brushing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete construction auxiliary equipment, in particular to a device for brushing cement slurry on steel bars. Background Art

[0002] In the construction of concrete structures for building projects, vertical steel bars are usually reserved on each floor. After the concrete construction of the current floor slab is completed, the exposed steel bars are connected to the steel bars of the next floor by overlapping, welding or mechanical connection. This not only meets the seismic safety requirements of the building, but also facilitates on-site construction. However, construction projects often encounter force majeure and other influences, which make it impossible to continue the construction of concrete structures. In this case, the exposed steel bars will be exposed to the environment all the time, which is easy to cause corrosion of the steel bars, and seriously reduce the mechanical properties of the steel bars. In order to solve the above problems, measures are generally taken to manually apply cement slurry to the exposed steel bars. However, the manual application is uneven, the quality is difficult to guarantee, and the construction efficiency is low, resulting in high labor costs. Utility Model Content

[0003] The utility model aims to provide a device for brushing cement slurry on steel bars.

[0004] The technical solution of the utility model to solve the above-mentioned technical problems is as follows: A device for brushing cement slurry on steel bars, comprising: a cement slurry container and a discharge head, a first threaded connector is provided at the bottom of the cement slurry container; the discharge head comprises a second threaded connector and a discharge pipe that are interconnected; the second threaded connector is connected to the first threaded connector by an adaptive thread; a base is provided inside the second threaded connector; a material port blocking component is provided at the interface between the second threaded connector and the discharge pipe; the material port blocking component comprises a sealing cover, the sealing cover is provided with a hinged part, the hinged part is hingedly connected to the base by a connecting pin, and the sealing cover blocks the pipe mouth of the discharge pipe when closed.

[0005] The device for brushing cement slurry on steel bars of the utility model as described above, further, the material port blocking component also includes an elastic reset member, and the elastic reset member is used to provide a closing driving force for the cover in the open state.

[0006] The utility model is a device for painting cement slurry on steel bars as described above, further, the elastic reset member is a coil spring, the coil spring is installed on the connecting pin, one end of the coil spring is connected to the cover, and the other end of the coil spring is fixed to the connecting pin.

[0007] The device for coating cement slurry on steel bars of the utility model is further characterized in that an annular groove is provided on the inner wall of the discharge pipe, a first rubber ring is installed in the annular groove, and the inner diameter of the first rubber ring is smaller than the outer diameter of the exposed steel bars.

[0008] The device for brushing cement slurry on steel bars of the utility model as described above, further, the material inlet blocking component also includes a second rubber ring, the second rubber ring is installed on the second threaded connector, and the installation position of the second rubber ring corresponds to the position of the cover when it is closed.

[0009] The utility model is a device for brushing cement slurry on steel bars as described above, further, the cement slurry container includes a cylindrical portion and a conical portion, the conical portion is installed at the lower end of the cylindrical portion, the upper end of the cylindrical portion is a feeding port; the conical portion is fixedly connected to the first threaded connector.

[0010] The device for applying cement slurry to steel bars of the utility model further comprises a holding component, and the holding component is fixed to the outer wall of the cement slurry container.

[0011] 1. The utility model is simple to operate the cement slurry coating device for steel bars: place the device at the root of the steel bar and lift it at a uniform speed to realize one-time coating of the exposed steel bar from bottom to top, which reduces the labor intensity of on-site workers, improves work efficiency and reduces labor costs; the cement slurry is evenly coated, ensuring the coating quality, and is not prone to leakage and pollution.

[0012] 2. The utility model has a simple structure for applying cement slurry to steel bars. During construction, the cement slurry container and the discharge head are processed and formed according to steel bars of different specifications, so that cement slurry can be applied to steel bars of different diameters at the same time, thus shortening the construction period. Moreover, the utility model can be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0014] Figure 1 This is a schematic diagram of a device for applying cement slurry to steel bars according to an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of an application of a device for applying cement slurry to steel bars according to an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of a discharge head according to an embodiment of the utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of a discharge head according to an embodiment of the utility model;

[0018] Figure 5 The figure is a cross-sectional schematic diagram of a discharge head according to an embodiment of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 100. A device for applying cement slurry to steel bars, 1. A cement slurry container, 11. A conical portion, 2. A first threaded connector, 3. A discharge head, 31. A second threaded connector, 32. A discharge pipe, 321. An annular groove, 33. A material inlet sealing component, 331. A sealing cover, 332. A hinged portion, 34. A first rubber ring, 35. A base, 36. A connecting pin, 37. A second rubber ring, 4. A gripping component, 5. Floor concrete, 6. Steel bars. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the device for applying cement slurry to steel bars of the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0023] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0024] Combination Figure 1-Figure 5 A device 100 for applying cement slurry to steel bars according to an embodiment of the present application is described. The device can be used to apply cement to steel bars 6 exposed in floor concrete 5. The device includes:

[0025] A cement slurry container 1 is provided with a first threaded connector 2 at the bottom of the cement slurry container; the cement slurry container is used to hold cement slurry for painting, so the container is preferably made of a plastic material with good corrosion resistance and rust resistance. Or in order to achieve similar functions, in another embodiment, the cement slurry container is made of stainless steel, which is cut, rolled and welded into shape. Figure 1In the embodiment shown, the cement slurry container 1 includes a cylindrical portion and a conical portion 11, the conical portion 11 is installed at the lower end of the cylindrical portion, and the upper end of the cylindrical portion is a feeding port; the conical portion 11 is fixedly connected to the first threaded connector 2. The cement slurry container is designed such that the above structure can make the cement slurry flow out smoothly from the lower outlet, avoiding the accumulation of a small amount of solid matter inside the cement at the bottom of the cement slurry container. In a further preferred embodiment, the cement slurry brushing device for steel bars also includes a gripping component 4, which is fixed to the outer wall of the cement slurry container 1. Figure 1 The holding part shown in the figure is one, and the operation is performed by holding with one hand, so that the operator can free up the other hand to perform other operations, such as aligning the discharge port of the discharge pipe with the steel bar. In this case, the volume of the cement slurry container is preferably designed to be less than 5L. In another embodiment, there are two holding parts, which are symmetrically arranged along the outer wall of the cement slurry container. The operator can use two hands to hold it, which can more stably control the position of the cement slurry container and prevent it from shaking. In this case, the volume of the cement slurry container can be designed to be 5L to 10L.

[0026] The discharge head 3 includes a second threaded connector 31 and a discharge pipe 32 which are interconnected; the second threaded connector 31 is connected to the first threaded connector 2 through an adapted thread; Figure 1 In a specific embodiment shown in FIG. 1 , the first threaded connector has an external thread, and the second threaded connector has an internal thread. Figure 3-5 As shown, a base 35 is provided inside the second threaded connector 31. The base 35 is used to install the cover. The specific structure and size of the base can be determined by those skilled in the art according to installation requirements. For example, Figure 4 and Figure 5 The base structure in the example is a rectangular parallelepiped structure; Figure 3 In the specific embodiment shown, the second threaded connector includes a barrel and an end cap, the end cap is fixed at one end of the barrel, and an internal thread is provided inside the barrel; an opening is provided in the middle of the end cap, and the end of the discharge pipe is fixed at the position of the opening. The above-mentioned base 35 is installed on the inner wall of the end cap. A material inlet blocking component 33 is provided at the interface position between the second threaded connector 31 and the discharge pipe 32; the material inlet blocking component 33 includes a sealing cover 331, and the diameter of the sealing cover is larger than the diameter of the discharge pipe; the sealing cover 331 is provided with a hinged portion 332, and the hinged portion is hingedly connected to the base 35 through a connecting pin 36, and the sealing cover 331 blocks the pipe opening of the discharge pipe 32 when it is closed.

[0027] Combination Figure 2The method of using the steel bar cement slurry brushing device of the above embodiment of the present application is described. The floor slab concrete 5 is provided with steel bars 6 protruding from the upper part thereof. The exposed steel bars need to be coated with cement slurry to protect them. Before use, the cement slurry is loaded into the cement slurry container. At this time, the material port blocking component is in a closed state due to the action of gravity, so the cement slurry will not leak from the discharge head. The operator places the steel bar cement slurry brushing device just above the steel bar 6, and gradually moves downward so that the end of the steel bar is inserted into the lower end of the discharge pipe. As the steel bar is gradually inserted, the steel bar contacts the cover and lifts the cover to open the cover. At this time, the cement slurry gradually flows out of the discharge pipe and contacts the steel bar. At this time, the operator needs to gradually move the steel bar cement slurry brushing device upward to achieve full coating of the steel bar. Since the cement slurry is surrounded by the outside of the steel bar in the discharge pipe, the steel bar can be fully coated. Compared with manual cement slurry brushing, the coating is more uniform and the coating efficiency is greatly improved.

[0028] Since some steel bars are not in a vertical state, the above-mentioned steel bar cement slurry coating device is out of use. Due to the inclination of the steel bars, the steel bar cement slurry coating device needs to be used at a certain inclination angle. In this state, after the coating of one steel bar is completed, the cover sometimes cannot fall naturally by gravity and switch from an open state to a closed state. The above-mentioned embodiment is further improved, and the material port blocking component 33 also includes an elastic reset member, which is used to provide a closing driving force for the cover 331 in the open state. In a specific embodiment, the elastic reset member is a coil spring, which is mounted on the connecting pin 36, one end of the spring is connected to the cover 331, and the other end of the spring is fixed to the connecting pin 36. When the cover is closed, the coil spring can provide a pre-tightening force to the cover, and when the cover is open, the pre-tightening force is further increased to constitute a closing driving force. In another specific embodiment, the elastic return member is a tension spring, one end of the tension spring is connected to the cover (connected to the position opposite to the hinge part of the cover), and the other end is connected to the inner wall of the second threaded connection member. When the cover is closed, the tension spring can provide a pre-tightening force to the cover. When the cover is open, the pre-tightening force is further increased to constitute a closing driving force.

[0029] In the above embodiment, the inner diameter of the discharge pipe is larger than the outer diameter of the steel bar, for example, the inner diameter of the discharge pipe is 1mm to 5mm larger than the diameter of the steel bar. Since the viscosity of cement slurry is greater than that of water, when the gap between the discharge pipe and the steel bar is appropriate, the cement slurry will not flow out of the gap in large quantities, causing material waste. However, if the inner diameter of the discharge pipe is designed to be too large, the cement slurry will flow out from the gap between the discharge pipe and the steel bar when the cement slurry is applied. On the other hand, if the inner diameter of the discharge pipe is designed to be too small, since most of the steel bars cannot remain straight, if the steel bars are bent, it will cause the equipment to get stuck during the cement slurry application process, and the steel bars will get stuck in the discharge pipe. The above embodiment is further improved, and the inner wall of the discharge pipe 32 is provided with an annular groove 321, and a first rubber ring 34 is installed in the annular groove 321, and the inner diameter of the first rubber ring 34 is smaller than the outer diameter of the exposed steel bar 6. Designed in the above manner, there is no gap between the steel bar and the first rubber ring, which can prevent cement slurry leakage. In addition, the above structure can design the discharge pipe diameter to be larger, so that the device can be suitable for steel bars with different diameters (under the premise that there will be no cement slurry leakage).

[0030] In a further preferred embodiment of a device for painting cement slurry on steel bars, the material port plugging component 33 further includes a second rubber ring 37, which is installed on the second threaded connector 31, and the installation position of the second rubber ring 37 corresponds to the position of the cover 331 when it is closed. By means of the above-mentioned design, when the cover is closed, the second rubber ring is contacted with the second rubber ring and squeezed between the cover and the second threaded connector, thereby preventing cement slurry from leaking from the gap between the cover and the second threaded connector when the cover is closed. In this way, cement slurry will not leak during the interval between the painting of one steel bar and the painting of another steel bar. Figure 3 In the specific embodiment shown, the second threaded connector includes a barrel and an end cap, the end cap is fixed at one end of the barrel, an internal thread is arranged inside the barrel, an opening is arranged in the middle of the end cap, and the end of the discharge pipe is fixed at the position of the opening. The second rubber ring is installed on the inner wall of the end cap.

[0031] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A device for applying cement slurry to steel bars, characterized in that: include: A cement slurry container (1) and a discharge head (3), wherein a first threaded connector (2) is provided at the bottom of the cement slurry container; the discharge head (3) comprises a second threaded connector (31) and a discharge pipe (32) which are interconnected; the second threaded connector (31) is connected to the first threaded connector (2) by means of matching threads; a base (35) is provided inside the second threaded connector (31); a material port blocking component (33) is provided at the interface between the second threaded connector (31) and the discharge pipe (32); the material port blocking component (33) comprises a cover (331), the cover (331) is provided with a hinged portion (332), the hinged portion is hingedly connected to the base (35) by means of a connecting pin (36), and the cover (331) blocks the pipe port of the discharge pipe (32) when closed.

2. The device for applying cement slurry to steel bars according to claim 1, characterized in that: The material port blocking component (33) further comprises an elastic reset member, and the elastic reset member is used to provide a closing driving force for the cover (331) in the open state.

3. The device for applying cement slurry to steel bars according to claim 2, characterized in that: The elastic return member is a coil spring, which is mounted on the connecting pin (36). One end of the coil spring is connected to the sealing cover (331), and the other end of the coil spring is fixed to the connecting pin (36).

4. The device for applying cement slurry to steel bars according to any one of claims 1 to 3, characterized in that: The inner wall of the discharge pipe (32) is provided with an annular groove (321), and a first rubber ring (34) is installed in the annular groove (321), and the inner diameter of the first rubber ring (34) is smaller than the outer diameter of the exposed steel bar (6).

5. The device for applying cement slurry to steel bars according to claim 4, characterized in that: The material port blocking component (33) further comprises a second rubber ring (37), wherein the second rubber ring (37) is mounted on the second threaded connector (31), and the mounting position of the second rubber ring (37) corresponds to the position of the sealing cover (331) when it is closed.

6. The device for applying cement slurry to steel bars according to claim 5, characterized in that: The cement slurry container (1) comprises a cylindrical portion and a conical portion (11), wherein the conical portion (11) is installed at the lower end of the cylindrical portion, and the upper end of the cylindrical portion is a feed port; the conical portion (11) is fixedly connected to the first threaded connector (2).

7. The device for applying cement slurry to steel bars according to claim 6, characterized in that: It also comprises a holding component (4), wherein the holding component (4) is fixed to the outer wall of the cement slurry container (1).

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