An indoor concrete pouring device

Abstract

This utility model relates to the field of construction equipment technology, specifically an indoor ground concrete pouring device, including a concrete pouring pipe and a pipe opening fixedly installed at the end of the concrete pouring pipe. A diameter-adjusting component for adjusting the discharge flow rate is provided at the end of the pipe opening away from the concrete pouring pipe. The diameter-adjusting component includes an elastic sleeve and multiple support rods. The elastic sleeve is fixedly installed at the end of the pipe opening and is conical in shape. The multiple support rods are all located inside the elastic sleeve. By setting the pipe opening, the diameter-adjusting component, and the adjusting component, the discharge flow rate and discharge range can be adjusted in real time according to actual construction needs. This allows for both large-area rapid pouring and precise pouring in small areas, narrow spaces, and corners, significantly improving the versatility and applicability of the device. It avoids excessive concrete flow, splashing, or overflow, reducing material waste, decreasing the workload of cleaning up excess concrete, and improving construction efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to an indoor ground concrete pouring device. Background Technology

[0002] In the construction of indoor floors, concrete pouring is one of the core processes. Its construction quality directly affects the flatness, strength and service life of the indoor floor. Currently, manual pipe support is an important link in ensuring the smooth progress of construction during the concrete pouring process. Manual pipe support can ensure that the concrete is accurately poured to the designated position, avoiding waste and pollution.

[0003] A concrete pouring pipe outlet control device disclosed in Chinese Patent Publication No. CN223793880U describes a device where, during use, a first and second clamping plate are placed on the outside of the pouring pipe, and bolts are rotated to clamp and fix it. The user grips the first and second handles with both hands, rests their shoulders on the push block, and uses the strength of their arms and shoulders to control the position of the pouring pipe outlet for precise pouring. However, based on existing concrete pouring devices in related fields, existing pouring pipe outlets are mostly of fixed size, with no adjustable flow rate or range. This makes it difficult to simultaneously meet the needs of large-area rapid pouring and precise pouring in confined spaces and corners, resulting in low versatility and inability to adapt to diverse indoor construction environments. Due to the lack of a flow rate adjustment structure, the concrete output is difficult to control, easily leading to excessive output and splashing, which not only wastes raw materials but also increases the workload of cleaning up excess concrete later, reducing construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide an indoor ground concrete pouring device.

[0005] The objective of this utility model is achieved through the following technical solution: an indoor ground concrete pouring device, comprising a concrete pouring pipe and a pipe opening fixedly installed at the port of the concrete pouring pipe, wherein the end of the pipe opening away from the concrete pouring pipe is provided with a diameter-changing component for adjusting the discharge flow rate; the diameter-changing component includes an elastic sleeve and multiple support rods, the elastic sleeve being fixedly installed at the port of the pipe opening, the elastic sleeve being conical in shape, the multiple support rods being disposed inside the elastic sleeve, and the multiple support rods being in contact with the inner wall of the elastic sleeve, and the multiple support rods being hinged to the pipe opening; a first handle is fixedly installed on the outer surface of the pipe opening, and an adjustment component for synchronously adjusting the angle of the multiple support rods is provided on the pipe opening.

[0006] Preferably, the end of the support rod is hinged to the pipe opening via a pin, and the pipe opening has a movable groove corresponding to the position of the support rod.

[0007] Preferably, the adjusting assembly includes a sleeve threaded to the outer surface of the pipe opening, and a half gear is fixedly provided at one end of each of the multiple support rods near the pin shaft. The inner wall of the sleeve has multiple meshing grooves that are adapted to the half gears.

[0008] Preferably, the half gear is coaxially arranged with the pin shaft, the half gear is disposed inside the sleeve, and the half gear meshes with a portion of the meshing groove.

[0009] Preferably, the cross-sectional shape of the support rod is V-shaped, and the outer surface of the support rod is provided with a rubber layer.

[0010] Preferably, a second grip is fixedly provided on the outer surface of the sleeve. Both the first grip and the second grip are annular, and both the outer surfaces of the first grip and the second grip are provided with a rubber layer.

[0011] Preferably, the outer surface of the pipe opening is provided with a threaded groove, and the inner wall of the sleeve is fixedly provided with an internal threaded ring that is threadedly connected to the threaded groove.

[0012] The beneficial effects of this indoor floor concrete pouring device are as follows: by setting up pipe openings, diameter reducing components, and adjustment components, it can achieve the effect of adjusting the discharge flow rate and discharge range in real time according to actual construction needs. It can meet the needs of large-area rapid pouring, as well as precise pouring in small areas, narrow spaces, and corners. It significantly improves the versatility and applicability of the device, avoids excessive concrete flow, splashing, or overflow, reduces material waste, reduces the workload of cleaning up excess concrete, and improves construction efficiency and quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the concrete pouring pipe of this utility model;

[0016] Figure 3 This is a schematic diagram of the pipe opening structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the variable diameter component of this utility model;

[0018] Figure 5 This is a schematic diagram of the variable diameter component when the discharge range is large.

[0019] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A;

[0020] Figure 7 This is a schematic diagram of the variable diameter assembly with a small discharge range according to this utility model.

[0021] In the diagram: 1. Concrete pouring pipe; 2. Pipe opening; 201. First grip; 202. Movable groove; 203. Threaded groove; 3. Variable diameter assembly; 301. Elastic sleeve; 302. Support rod; 3021. Pin; 4. Adjustment assembly; 401. Sleeve; 4011. Second grip; 4012. Internal threaded ring; 402. Half gear; 403. Meshing groove. Detailed Implementation

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0024] like Figures 1 to 7 As shown, an indoor floor concrete pouring device includes a concrete pouring pipe 1 and a pipe opening 2 fixedly installed at the port of the concrete pouring pipe 1. A diameter-adjusting component 3 for adjusting the discharge flow rate is provided at the end of the pipe opening 2 away from the concrete pouring pipe 1. The diameter-adjusting component 3 includes an elastic sleeve 301 and multiple support rods 302. The elastic sleeve 301 is fixedly installed at the port of the pipe opening 2 and is conical in shape. The multiple support rods 302 are all disposed inside the elastic sleeve 301 and are in contact with the inner wall of the elastic sleeve 301. Figures 4 to 7As shown, the support rod 302 has a V-shaped cross-section. A rubber layer is provided on the outer surface of the support rod 302. This rubber layer improves the fit between the support rod 302 and the elastic sleeve 301, and prevents unnecessary wear on the elastic sleeve 301. Simultaneously, multiple support rods 302 are evenly distributed inside the elastic sleeve 301 and fit against its inner wall, providing stable support. This ensures uniform deformation and reasonable stress distribution of the elastic sleeve 301 during diameter adjustment, preventing localized stress concentration that could cause tearing or damage, and extending its service life. All support rods 302 are hinged to the pipe opening 2. The ends of the support rods 302 are hinged to the pipe opening 2 via pins 3021. The pipe opening 2 has movable grooves 202 corresponding to the positions of the support rods 302. Figure 5 and Figure 7 As shown, by controlling the multiple support rods 302 to tilt outward, the opening of the elastic sleeve 301 can be enlarged, thereby increasing the discharge flow rate. By controlling the multiple support rods 302 to retract inward, the opening can be gradually reduced by the elasticity of the elastic sleeve 301 itself, thereby reducing the discharge flow rate. (The elastic sleeve 301 is fixed to the port of the pipe 2 by a clamp, which is convenient and quick to install and remove. It can be replaced separately after wear, aging or damage, without the need to replace the entire pouring pipe 1 or the pipe 2 assembly, thus reducing maintenance costs and material consumption.) The outer surface of the pipe 2 is fixedly installed with a first handle 201. The pipe 2 is provided with an adjustment component 4 for synchronously adjusting the angle of the multiple support rods 302. Through the first handle 201, the pipe 2 and the concrete pouring pipe 1 can be controlled to move in multiple directions, thereby improving the convenience of pouring.

[0025] In summary, by installing a variable diameter component 3 at the inlet 2 of the concrete pouring pipe 1, the discharge flow rate and discharge range can be adjusted in real time according to actual construction needs. This not only meets the requirements for large-area rapid pouring but also enables precise pouring in small areas, narrow spaces, and corners. It significantly improves the versatility and applicability of the device, avoids excessive concrete flow, splashing, or overflow, reduces material waste, lowers the workload of cleaning up excess concrete, and improves construction efficiency and quality.

[0026] like Figures 4 to 7 As shown, the adjusting assembly 4 includes a sleeve 401 threadedly connected to the outer surface of the pipe opening 2. A threaded groove 203 is formed on the outer surface of the pipe opening 2. An internal threaded ring 4012, threadedly connected to the threaded groove 203, is fixedly provided on the inner wall of the sleeve 401. A half-gear 402 is fixedly provided at one end of each of the multiple support rods 302 near the pin 3021. Figure 6As shown, the half gear 402 is coaxially arranged with the pin 3021. The half gear 402 is located inside the sleeve 401 and meshes with a portion of the meshing groove 403. The inner wall of the sleeve 401 has multiple meshing grooves 403 that are adapted to the half gear 402. A second grip 4011 is fixedly provided on the outer surface of the sleeve 401. Both the first grip 201 and the second grip 4011 are annular. The outer surfaces of both the first grip 201 and the second grip 4011 are provided with a rubber layer. Through the first grip 201 and the second grip 4011, friction can be increased. The sleeve 401 is easy to operate and can improve the comfort of holding. When in use, the sleeve 401 is rotated by the second grip 4011. Then, by utilizing the cooperation between the internal thread ring 4012 and the thread groove 203, the sleeve 401 can rotate circumferentially on the outer surface of the tube opening 2 while sliding axially. Then, by utilizing the cooperation between the meshing groove 403 and the half gear 402, the tilt angle of the support rod 302 can be adjusted by the axial sliding of the sleeve 401 (since the meshing groove 403 is annular, the circumferential rotation of the sleeve 401 will not affect the meshing of the half gear 402).

[0027] In summary, the adjusting component 4 utilizes the self-locking principle of the thread to lock the angle of the support rod 302. During the concrete pouring process, the diameter will not change due to external forces such as vibration and impact, ensuring a stable discharge state and improving the continuity and safety of construction (the specific principle is: the thread helix angle is made smaller than the equivalent friction angle of the thread pair. Without external force to actively rotate and adjust, even if subjected to vibration, impact during the concrete pouring process and the reverse force between the elastic sleeve 301 and the support rod 302, the thread structure will not reverse, loosen, or shift on its own, thereby achieving stable locking of the tilt angle of multiple support rods 302, ensuring that the discharge diameter of the variable diameter component 3 remains constant, and ensuring a stable and reliable pouring process).

[0028] The work process is as follows:

[0029] S1: When in use, the sleeve 401 is rotated by the second handle 4011, and then the sleeve 401 can slide axially while rotating circumferentially on the outer surface of the pipe opening 2 by utilizing the cooperation between the internal thread ring 4012 and the thread groove 203.

[0030] S2: When the sleeve 401 slides axially, the tilt angle of the support rod 302 can be adjusted by the axial sliding of the sleeve 401 through the cooperation between the meshing groove 403 and the half gear 402.

[0031] S3: By controlling the multiple support rods 302 to tilt outward, the opening of the elastic sleeve 301 can be enlarged, thereby increasing the discharge flow rate. By controlling the multiple support rods 302 to retract inward, the opening can be gradually reduced by utilizing the elasticity of the elastic sleeve 301 itself, thereby reducing the discharge flow rate.

[0032] S4: By setting a variable diameter component 3 at the pipe opening 2 of the concrete pouring pipe 1, the discharge flow rate and discharge range can be adjusted in real time according to actual construction needs. This can meet the needs of large-area rapid pouring, as well as precise pouring in small areas, narrow spaces, and corners. This significantly improves the versatility and applicability of the device, avoids excessive concrete flow, splashing or overflow, reduces material waste, reduces the workload of cleaning up excess concrete, and improves construction efficiency and quality.

[0033] S5: Adjustment component 4 uses the thread self-locking principle to lock the angle of support rod 302, so that the diameter will not change due to external forces such as vibration and impact during the concrete pouring process, ensuring stable discharge status and improving construction continuity and safety.

[0034] S6: Both the variable diameter assembly 3 and the adjustment assembly 4 adopt a purely mechanical structure, requiring no electrical or hydraulic drive. They are simple in structure, have a low failure rate, and a long service life. Operators can complete the synchronous adjustment of multiple support rods 302 simply by adjusting the adjustment assembly 4. The operation is convenient and intuitive, making it suitable for rapid use on construction sites.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An indoor floor concrete placing device, characterized by: It includes a concrete pouring pipe (1) and a pipe opening (2) fixedly installed at the port of the concrete pouring pipe (1). The end of the pipe opening (2) away from the concrete pouring pipe (1) is provided with a variable diameter component (3) for adjusting the discharge flow rate. The variable diameter assembly (3) includes an elastic sleeve (301) and multiple support rods (302). The elastic sleeve (301) is fixedly installed at the port of the pipe (2). The elastic sleeve (301) is conical in shape. The multiple support rods (302) are all arranged inside the elastic sleeve (301), and the multiple support rods (302) are all in contact with the inner wall of the elastic sleeve (301). The multiple support rods (302) are all hinged to the pipe (2). A first grip (201) is fixedly installed on the outer surface of the pipe opening (2), and an adjustment component (4) is provided on the pipe opening (2) for synchronously adjusting the angles of multiple support rods (302).

2. A device for pouring concrete on indoor floors as claimed in claim 1, characterized in that: The end of the support rod (302) is hinged to the pipe opening (2) by a pin (3021), and the pipe opening (2) is provided with a movable groove (202) corresponding to the position of the support rod (302).

3. A device for pouring concrete on an indoor floor according to claim 2, characterized in that: The adjustment assembly (4) includes a sleeve (401) threaded to the outer surface of the pipe opening (2), and a half gear (402) is fixedly provided at one end of each of the multiple support rods (302) near the pin (3021). The inner wall of the sleeve (401) has multiple meshing grooves (403) adapted to the half gear (402).

4. A device for pouring concrete on an indoor floor according to claim 3, characterized in that: The half gear (402) is coaxially arranged with the pin (3021), the half gear (402) is located inside the sleeve (401), and the half gear (402) meshes with part of the meshing groove (403).

5. A device for pouring concrete on indoor floors as claimed in claim 2, characterized in that: The support rod (302) has a V-shaped cross-section and a rubber layer on its outer surface.

6. A device for pouring concrete on indoor floors as claimed in claim 3, characterized in that: The outer surface of the sleeve (401) is fixedly provided with a second grip (4011). Both the first grip (201) and the second grip (4011) are annular, and both the outer surfaces of the first grip (201) and the second grip (4011) are provided with a rubber layer.

7. A device for pouring concrete on indoor floors as claimed in claim 3, characterized in that: The outer surface of the pipe opening (2) is provided with a threaded groove (203), and the inner wall of the sleeve (401) is fixedly provided with an internal threaded ring (4012) that is threadedly connected to the threaded groove (203).

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