Concrete pump truck elbow convenient to adjust

Abstract

The utility model relates to the technical field of concrete pump truck bent pipes, and discloses a concrete pump truck bent pipe convenient to adjust, which comprises a first connecting bent pipe and a fixing assembly, the left end face of the first connecting bent pipe is fixedly connected with a first flange, and the right end face of the first connecting bent pipe is rotatably connected with a second connecting bent pipe; a second flange is fixedly connected to the lower end face of the second connecting bent pipe. The upper end of the second connecting bent pipe is sleeved with the fixing assembly. The fixing assembly is composed of an annular fixing base, an annular rotating disc, an end face thread, an annular limiting shell, a rotating shaft and a gear cylinder. The annular fixing base is arranged on the outer edge of the upper end face of the second connecting bent pipe in a sleeving mode, and the inner wall face of the annular fixing base is connected with the outer end face of the annular rotating disc through a bearing. According to the device, the convenience of adjusting the elbow pipe of the concrete pump truck is improved, the time required for replacing the elbow pipe is shortened, the labor intensity is reduced, and then the construction efficiency is improved; the overall structure is simple and stable, and operation and implementation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pump truck elbows, in particular to an adjustable concrete pump truck elbow. Background Technique

[0002] A concrete pump truck is a mechanical device specifically used for continuously transporting concrete along a pipeline through pressure; the core function of the pump truck is that it can efficiently extract concrete from a mixing station or a transport vehicle and transport the concrete along the pipeline to a designated construction site through high pressure; another important component of the pump truck is the elbow on its boom, which is one of the key components in the conveying pipe system; the function of the elbow is to change the concrete conveying direction so that it can flexibly adapt to various construction environments and requirements. However, the existing elbows for concrete pump truck booms still have certain defects, such as:

[0003] The "Reinforced Elbow for Concrete Pump Truck Boom" with the application number 202121693011.4 includes a pipe body. A fixed seat is fixed at the bottom end of the pipe body, and a base is fixed at the bottom end of the fixed seat. A plurality of mounting holes are opened inside the base, and a placement groove is opened at the top end of the mounting hole corresponding to the inside of the base. A limiting block is arranged inside the placement groove. A cross bar penetrates between one end of the limiting block and one end of the placement groove. A groove is opened at the other end of the limiting block, and a limiting block is arranged inside the groove. A fixed head is connected between the bottom end of the limiting block and the groove. A limiting card slot is opened at the other end of the placement groove; when the angle of the concrete pump truck elbow needs to be adjusted, this device needs to disassemble the original elbow and install a new elbow with a different bending angle. This process is relatively complex and cumbersome, affecting the construction progress and not meeting the use requirements. In view of this, an adjustable concrete pump truck elbow is proposed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable concrete pump truck elbow to solve the problem that the existing concrete pump truck elbow cannot flexibly adjust the connection angle mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: It includes a first connecting elbow and a fixing component. A first flange is fixedly connected to the left end face of the first connecting elbow, and a second connecting elbow is rotatably connected to the right end face of the first connecting elbow; a second flange is fixedly connected to the lower end face of the second connecting elbow; the fixing component is sleeved on the upper end of the second connecting elbow; the fixing component is composed of an annular fixing base, an annular turntable, a disk surface thread, an annular limiting shell, a rotating shaft, a gear cylinder and an end face thread; the annular fixing base is sleeved on the outer edge of the upper end face of the second connecting elbow, and the inner wall surface of the annular fixing base is connected to the outer end face of the annular turntable by a bearing.

[0006] Adopting the above technical solution facilitates the adjustment of the angle of the elbow pipe of the concrete pump truck, thereby improving the construction efficiency and flexibility.

[0007] As a preferred technical solution of the present utility model, the upper end surface of the annular turntable is fixedly connected to the lower end surface of the end face thread, and the lower end surface of the annular turntable is fixedly connected to the upper end surface of the disk surface thread.

[0008] Adopting the above technical solution facilitates the realization of a stable connection between the annular turntable and the end face thread, ensuring the precise control of the elbow pipe angle during the adjustment process.

[0009] As a preferred technical solution of the present utility model, the left end of the rotating shaft penetrates through the left end face of the annular fixed base, and the right end face of the rotating shaft is connected to the inner wall surface of the annular fixed base by a bearing.

[0010] Adopting the above technical solution facilitates the realization of a stable rotational connection between the rotating shaft and the annular fixed base, thereby ensuring the smoothness and reliability when adjusting the elbow pipe angle.

[0011] As a preferred technical solution of the present utility model, the gear cylinder is sleeved on the rotating shaft, and the gear cylinder is in meshing transmission with the end face thread.

[0012] Adopting the above technical solution realizes precise angle adjustment through gear transmission, making the operation more convenient and efficient.

[0013] As a preferred technical solution of the present utility model, a limit clamping seat is arranged on the upper end surface of the end face thread, and a thread groove corresponding to the end face thread is arranged on the lower end surface of the limit clamping seat; the limit clamping seat is threadedly connected to the annular turntable through the thread groove.

[0014] Adopting the above technical solution facilitates the precise limitation of the end face thread, ensuring the stability and repeatability of the elbow pipe angle during the adjustment process.

[0015] As a preferred technical solution of the present utility model, an annular limit housing is fixedly connected to the upper end surface of the annular turntable, and the lower end of the limit clamping seat is located inside the annular limit housing; the annular limit housing is provided with a moving groove corresponding to the movement of the limit clamping seat.

[0016] Adopting the above technical solution facilitates the precise control of the movement of the limit clamping seat.

[0017] As a preferred technical solution of the present utility model, an anti-slip groove corresponding to the limit clamping seat is arranged on the outer wall surface of the lower end of the first connecting elbow pipe.

[0018] With the above technical solution, it is convenient to achieve the stability and safety of the elbow angle adjustment, ensuring that the elbow will not move accidentally due to vibration or external forces during construction.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: This device improves the convenience of elbow adjustment of the concrete pump truck, reduces the time and labor intensity required for replacing the elbow, thereby improving the construction efficiency; and the overall structure is simple and stable, facilitating operation and implementation.

[0020] 1. When adjusting the elbow angle, first rotate the first connecting elbow and the second connecting elbow to the required angle, and then rotate the rotating shaft. The rotating shaft drives the gear cylinder to rotate. The gear cylinder drives the annular turntable to rotate through meshing transmission with the end face thread. The annular turntable drives the limit clamping seat to move towards the center of the annular limit housing through the disk surface thread and the annular limit housing until it abuts against the anti-slip groove at the lower end of the first connecting elbow, thereby completing the relative fixed connection between the first connecting elbow and the second connecting elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the connection structure of the first connecting elbow and the second connecting elbow at angle 1 of the present utility model;

[0022] Figure 2 Schematic diagram of the connection structure of the first connecting elbow and the second connecting elbow at angle 2 of the present utility model;

[0023] Figure 3 Schematic diagram of the connection structure between the end face thread and the annular turntable of the present utility model;

[0024] Figure 4 Schematic diagram of the connection structure between the limit clamping seat and the end face thread of the present utility model;

[0025] Figure 5 Schematic diagram of the connection structure when the limit clamping seat is clamped of the present utility model;

[0026] Figure 6 Schematic diagram of the three-dimensional structure of the limit clamping seat of the present utility model;

[0027] Figure 7 Schematic diagram of the main view sectional structure of the fixing component of the present utility model.

[0028] In the figure: 1. First connecting elbow; 2. Fixing component; 201. Annular fixed base; 202. Annular turntable; 203. Disk surface thread; 204. Annular limit housing; 205. Rotating shaft; 206. Gear cylinder; 207. Limit clamping seat; 208. End face thread; 3. Second connecting elbow; 4. First flange; 5. Second flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1-6 , the technical solution of the present utility model: a bend pipe of a concrete pump truck that is easy to adjust. Please refer to Figures 1-7 , the technical solution of the present utility model: a bend pipe of a concrete pump truck that is easy to adjust, including a first connecting bend pipe 1 and a fixing component 2. The left end face of the first connecting bend pipe 1 is fixedly connected with a first flange 4, and the right end face of the first connecting bend pipe 1 is rotatably connected with a second connecting bend pipe 3; the lower end face of the second connecting bend pipe 3 is fixedly connected with a second flange 5; the fixing component 2 is sleeved on the upper end of the second connecting bend pipe 3; the fixing component 2 is composed of an annular fixing base 201, an annular turntable 202, a disk surface thread 203, an annular limiting shell 204, a rotating shaft 205, a gear cylinder 206, and an end face thread 208; the annular fixing base 201 is sleeved on the outer edge of the upper end face of the second connecting bend pipe 3, and the inner wall surface of the annular fixing base 201 is connected with the outer end face of the annular turntable 202 by bearings, which is convenient for adjusting the angle of the bend pipe of the concrete pump truck, thereby improving the construction efficiency and flexibility;

[0031] The upper end face of the annular turntable 202 is fixedly connected with the lower end face of the end face thread 208, and the lower end face of the annular turntable 202 is fixedly connected with the upper end face of the disk surface thread 203, which is convenient for realizing the stable connection between the annular turntable 202 and the end face thread 208 and ensuring the precise control of the bend pipe angle during the adjustment process;

[0032] The left end of the rotating shaft 205 penetrates through the left end face of the annular fixing base 201, and the right end face of the rotating shaft 205 is connected with the inner wall surface of the annular fixing base 201 by bearings, which is convenient for realizing the stable rotational connection between the rotating shaft 205 and the annular fixing base 201, thereby ensuring the smoothness and reliability during the adjustment of the bend pipe angle;

[0033] The gear cylinder 206 is sleeved on the rotating shaft 205, and the gear cylinder 206 and the end face thread 208 are in meshing transmission. The precise angle adjustment is realized through gear transmission, making the operation more convenient and efficient;

[0034] A limit card seat 207 is provided on the upper end surface of the end face thread 208, and a thread groove corresponding to the end face thread 208 is provided on the lower end surface of the limit card seat 207; the limit card seat 207 is threadedly connected to the annular turntable 202 through the thread groove, which is convenient for accurately limiting the end face thread 208 and ensuring the stability and repeatability of the elbow angle during the adjustment process;

[0035] An annular limit housing 204 is fixedly connected to the upper end surface of the annular turntable 202, and the lower end of the limit card seat 207 is located within the annular limit housing 204; the annular limit housing 204 is provided with a moving groove corresponding to the movement of the limit card seat 207, which is convenient for accurately controlling the movement of the limit card seat 207;

[0036] An anti-slip groove corresponding to the limit card seat 207 is provided on the outer wall surface of the lower end of the first connecting elbow 1, which is convenient for realizing the stability and safety of the elbow angle adjustment and ensuring that the elbow will not move accidentally due to vibration or external force during the construction process;

[0037] Working principle: When adjusting the elbow angle, first rotate the first connecting elbow 1 and the second connecting elbow 3 to the required angle, and then rotate the rotating shaft 205. The rotating shaft 205 drives the gear cylinder 206 to rotate. The gear cylinder 206 drives the annular turntable 202 to rotate through meshing transmission with the end face thread 208. The annular turntable 202 drives the limit card seat 207 to move towards the center of the annular limit housing 204 through the disk surface thread 203 and the annular limit housing 204 until it abuts against the anti-slip groove at the lower end of the first connecting elbow 1, thereby completing the relative fixed connection between the first connecting elbow 1 and the second connecting elbow 3.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveniently adjustable elbow pipe for a concrete pump truck, comprising a No. 1 connecting elbow pipe (1) and a fixing assembly (2), characterized in that: The left end face of the No. 1 connecting bend (1) is fixedly connected to a No. 1 flange (4), and the right end face of the No. 1 connecting bend (1) is rotatably connected to a No. 2 connecting bend (3); the lower end face of the No. 2 connecting bend (3) is fixedly connected to a No. 2 flange (5); the upper end of the No. 2 connecting bend (3) is sleeved with the fixing assembly (2); the fixing assembly (2) is composed of an annular fixing base (201), an annular rotating disk (202), a disk thread (203), an annular limiting shell (204), a rotating shaft (205), a gear cylinder (206) and an end thread (208); the annular fixing base (201) is sleeved on the outer edge of the upper end face of the No. 2 connecting bend (3), and the inner wall surface of the annular fixing base (201) is connected to the outer end face bearing of the annular rotating disk (202).

2. The easily adjustable concrete pump truck elbow according to claim 1, characterized in that: The upper end surface of the annular rotating disk (202) is fixedly connected to the lower end surface of the end surface thread (208), and the lower end surface of the annular rotating disk (202) is fixedly connected to the upper end surface of the disk surface thread (203).

3. The easily adjustable concrete pump truck elbow according to claim 2, characterized in that: The left end of the rotating shaft (205) passes through the left end surface of the annular fixed base (201), and the right end surface of the rotating shaft (205) is connected to the inner wall surface of the annular fixed base (201) with a bearing.

4. The easily adjustable concrete pump truck elbow according to claim 3, characterized in that: The gear cylinder (206) is sleeved on the rotating shaft (205), and the gear cylinder (206) and the end surface thread (208) are meshed for transmission.

5. The easily adjustable concrete pump truck elbow according to claim 4, characterized in that: A limit clamping seat (207) is arranged on the upper end surface of the end surface thread (208), and a thread groove corresponding to the end surface thread (208) is arranged on the lower end surface of the limit clamping seat (207); the limit clamping seat (207) is threadedly connected to the annular rotating disk (202) via the thread groove.

6. The easily adjustable concrete pump truck elbow according to claim 5, characterized in that: The upper end surface of the annular rotating disk (202) is fixedly connected to an annular limiting shell (204), and the lower end of the limiting clamping seat (207) is located in the annular limiting shell (204); the annular limiting shell (204) is provided with a moving groove corresponding to the movement of the limiting clamping seat (207).

7. The easily adjustable concrete pump truck elbow according to claim 6, characterized in that: The outer wall surface of the lower end of the No. 1 connecting elbow (1) is provided with an anti-slip groove corresponding to the limit clamping seat (207).

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