Boom structure of concrete pump truck

Abstract

The utility model relates to the technical field of cantilever crane structures, in particular to a cantilever crane structure of a concrete pump truck, which comprises a first cantilever crane, a first groove is arranged in the first cantilever crane, a first pipeline is arranged in the first groove, a second cantilever crane is movably mounted on the right side surface of the first cantilever crane, and a second pipeline is arranged in the second cantilever crane. A first groove is formed in the first arm frame, a second groove is formed in the second arm frame, a second pipeline is arranged in the second groove, a clamping block is arranged in the first groove, a first moving groove is formed in the clamping block, and a second moving groove is formed in the right side face of the first moving groove; and a moving plate is movably mounted in the first moving groove. According to the utility model, the upper surface of the boxed main body is reduced, the mass of the arm support is reduced, the requirement on the supporting performance of the pump truck is reduced, the cost is also reduced, and the first pipeline and the second pipeline are easier to disassemble, so that the daily maintenance and repair are convenient.

Description

Technical Field

[0001] The utility model relates to the field of arm structures, in particular to an arm structure of a concrete pump truck. Background Art

[0002] As an indispensable and important equipment in modern construction, the main function of a concrete pump truck is to use pressure to continuously transport concrete along the pipeline to the designated pouring location. In the composition of a concrete pump truck, the boom system plays a vital role. It is not only responsible for transporting concrete to a specific height and distance, but also bears the function of supporting the entire vehicle and ensuring its stability.

[0003] The boom structure of an existing concrete pump truck is usually a hollow box-type main body, and the boom on the pump truck is composed of a plurality of box-type main bodies, resulting in the boom being usually of considerable mass, which places high requirements on the supporting performance of the pump truck. At the same time, the use of a box-type main body increases the cost of the boom. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a boom structure of a concrete pump truck.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a boom structure of a concrete pump truck, comprising a first boom, a first groove is opened inside the first boom, a first pipe is arranged inside the first groove, a second boom is movably installed on the right side of the first boom, a second groove is opened inside the second boom, a second pipe is arranged inside the second groove, a clamping block is arranged inside the first groove, the number of the clamping blocks is two, a first movable groove is opened inside the clamping block, a second movable groove is opened on the right side of the first movable groove, the second movable groove is an inclined groove, a movable plate is movably installed inside the first movable groove, a front side surface of the movable plate is fixedly connected with a bayonet, the bayonet is located inside the second movable groove, a turning handle is rotatably installed on the lower surface of the first boom, a threaded column is fixedly connected to the upper surface of the turning handle, the outer surface of the threaded column is threadedly connected with the movable plate, a limiting groove is opened on the front side of the first boom, and the clamping block is located inside the limiting groove.

[0006] further:

[0007] A support seat is fixedly connected to the inner bottom of the first groove, and the support seat is located below the first pipe.

[0008] further:

[0009] The inner bottom of the first groove is fixedly connected to a limiting block, the number of the limiting blocks is multiple, and the clamping block is located between adjacent limiting blocks.

[0010] further:

[0011] A first fixing piece is fixedly connected to the front side surface of the first arm support, and a first pipe is fixedly connected to the inner surface of the first fixing piece.

[0012] further:

[0013] A second fixing piece is fixedly connected to the front side surface of the second arm support, and a second pipe is fixedly connected to the inner surface of the second fixing piece.

[0014] further:

[0015] A cylinder is movably mounted on the lower surface of the first arm support, and a right side surface of the cylinder is movably mounted on a left side surface of the second arm support.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, the boom structure of the concrete pump truck is composed of a first pipe, a turning handle, a threaded column, a movable plate, a bayonet, a second movable groove, a clamping block, a first pipe and a second pipe. When the first pipe needs to be fixed, the turning handle is turned to drive the threaded column to rotate, and then the movable plate is driven to move up and down, and then the bayonet is driven to move up and down. Since the second movable groove is an inclined groove, the adjacent clamping blocks can be driven to approach or move away from each other. When the adjacent clamping blocks are close to each other, the first pipe can be fixed, and the second pipe is fixed in the same way. Compared with the existing boom, which is usually a hollow box-mounted main body, and the boom on the pump truck is composed of a plurality of box-mounted main bodies, the mass of the boom is usually quite large, which has high requirements on the supporting performance of the pump truck. At the same time, the use of the box-mounted main body increases the cost of the boom. The boom structure of the concrete pump truck reduces the upper surface of the box-mounted main body, reduces the mass of the boom, reduces the requirements on the supporting performance of the pump truck, and also reduces the cost. The first pipe and the second pipe are also easier to disassemble, which is convenient for daily maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0021] Figure 4 This is the first pipeline structure diagram of the utility model;

[0022] Figure 5 It is a partial structural sectional view of the utility model;

[0023] Figure 6 This is a cross-sectional view of the clamping block structure of the utility model;

[0024] Figure 7 This is a structural diagram of the movable plate of the utility model.

[0025] Legend:

[0026] 1. First arm support; 2. First groove; 3. Second arm support; 4. Second groove; 5. First pipeline; 6. Second pipeline; 7. Clamping block; 8. First movable groove; 9. Second movable groove; 10. Moving plate; 11. Pin; 12. Turning handle; 13. Threaded column; 14. Limit block; 15. Support seat; 16. Cylinder; 17. First fixing member; 18. Second fixing member; 19. Limit groove. DETAILED DESCRIPTION

[0027] Reference Figure 1-7 The utility model provides a boom structure of a concrete pump truck: it includes a first boom 1, a first groove 2 is opened inside the first boom 1, a first pipe 5 is arranged inside the first groove 2, a second boom 3 is movably installed on the right side of the first boom 1, a second groove 4 is opened inside the second boom 3, a second pipe 6 is arranged inside the second groove 4, concrete passes through the first pipe 5 and the second pipe 6, a clamping block 7 is arranged inside the first groove 2, the number of the clamping blocks 7 is two, the clamping block 7 is responsible for clamping and fixing the first pipe 5 and the second pipe 6, a first moving groove 8 is opened inside the clamping block 7, a second moving groove 9 is opened on the right side of the first moving groove 8, the second moving groove 9 is an oblique groove, a moving plate 10 is movably installed inside the first moving groove 8, a bayonet 11 is fixedly connected to the front side of the moving plate 10, and the bayonet 11 is located inside the second moving groove 9 The lower surface of the first arm 1 is rotatably installed with a turning handle 12. When the first pipe 5 needs to be fixed, the turning handle 12 is rotated, thereby driving the threaded column 13 to rotate, thereby driving the movable plate 10 to move up and down, and then driving the pin 11 to move up and down. Since the second movable groove 9 is an inclined groove, it can drive adjacent clamping blocks 7 to approach or move away from each other. When adjacent clamping blocks 7 are close to each other, the first pipe 5 can be fixed. The fixation of the second pipe 6 is similar. The upper surface of the turning handle 12 is fixedly connected with a threaded column 13. The turning handle 12 can only rotate on the lower surface of the first arm 1 and cannot move up and down. The outer surface of the threaded column 13 is threadedly connected to the movable plate 10. A limiting groove 19 is provided on the front side surface of the first arm 1. The limiting groove 19 can facilitate the movement of the clamping block 7, and can also limit the moving direction of the clamping block 7. The clamping block 7 is located inside the limiting groove 19.

[0028] The inner bottom of the first groove 2 is fixedly connected with a support seat 15, and the support seat 15 can provide support for the first pipe 5 and the second pipe 6 to facilitate the subsequent fixation of the first pipe 5 and the second pipe 6. The support seat 15 is located below the first pipe 5, and the inner bottom of the first groove 2 is fixedly connected with a limit block 14. The number of limit blocks 14 is multiple, and the clamping block 7 is located between adjacent limit blocks 14. The limit block 14 can limit the moving direction of the clamping block 7 to prevent the clamping block 7 from deviating from the direction. The front side of the first arm 1 is fixedly connected with a first fixing member 17, and the first fixing member 17 is responsible for fixing the first pipe 5. The inner surface of the first fixing member 17 is fixedly connected with the first pipe 5. The front side of the second arm 3 is fixedly connected with a second fixing member 18, and the second fixing member 18 is responsible for fixing the second pipe 6. The inner surface of the second fixing member 18 is fixedly connected with the second pipe 6.

[0029] A cylinder 16 is movably mounted on the lower surface of the first arm 1 , and the cylinder 16 can drive the second arm 3 to rotate when it works. The right side of the cylinder 16 is movably mounted on the left side of the second arm 3 .

[0030] Working principle: When it is necessary to fix the first pipe 5, turn the handle 12, which in turn drives the threaded column 13 to rotate, which in turn drives the movable plate 10 to move up and down, and then drives the latch 11 to move up and down. Since the second movable groove 9 is an inclined groove, it can drive the adjacent clamping blocks 7 to approach each other or move away from each other. When the adjacent clamping blocks 7 are close to each other, the first pipe 5 can be fixed, and the second pipe 6 can be fixed in the same way.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boom structure of a concrete pump truck, comprising a first boom (1), characterized in that: A first groove (2) is provided inside the first arm support (1), a first pipe (5) is provided inside the first groove (2), a second arm support (3) is movably mounted on the right side of the first arm support (1), a second groove (4) is provided inside the second arm support (3), a second pipe (6) is provided inside the second groove (4), a clamping block (7) is provided inside the first groove (2), two clamping blocks (7) are provided, a first movable groove (8) is provided inside the clamping block (7), a second movable groove (9) is provided on the right side of the first movable groove (8), The second movable groove (9) is an inclined groove, a movable plate (10) is movably installed inside the first movable groove (8), a front side surface of the movable plate (10) is fixedly connected with a latch (11), and the latch (11) is located inside the second movable groove (9), a turning handle (12) is rotatably installed on the lower surface of the first arm (1), a threaded column (13) is fixedly connected to the upper surface of the turning handle (12), and the outer surface of the threaded column (13) is threadedly connected to the movable plate (10), and a limiting groove (19) is provided on the front side surface of the first arm (1), and the clamping block (7) is located inside the limiting groove (19).

2. The boom structure of a concrete pump truck according to claim 1, characterized in that: A support seat (15) is fixedly connected to the inner bottom of the first groove (2), and the support seat (15) is located below the first pipe (5).

3. The boom structure of a concrete pump truck according to claim 1, characterized in that: The inner bottom of the first groove (2) is fixedly connected to a limiting block (14), there are a plurality of limiting blocks (14), and the clamping block (7) is located between adjacent limiting blocks (14).

4. The boom structure of a concrete pump truck according to claim 1, characterized in that: A first fixing member (17) is fixedly connected to the front side of the first arm support (1), and a first pipe (5) is fixedly connected to the inner surface of the first fixing member (17).

5. The boom structure of a concrete pump truck according to claim 1, characterized in that: A second fixing member (18) is fixedly connected to the front side of the second arm support (3), and a second pipe (6) is fixedly connected to the inner surface of the second fixing member (18).

6. The boom structure of a concrete pump truck according to claim 1, characterized in that: A cylinder (16) is movably mounted on the lower surface of the first arm support (1), and the right side of the cylinder (16) is movably mounted on the left side of the second arm support (3).

Images