CN103031956B - A kind of safety device preventing concrete conveyance tube terminal concrete from splashing down - Google Patents

Abstract

The invention relates to a safety device for preventing concrete from splashing at the end of a concrete delivery pipe. The end of the concrete delivery pipe is a terminal hose. The safety device includes a fixing part fixed on the terminal hose and a A collection container, the fixing part is an annular structure that is closely connected to the outer diameter of the terminal hose, and the fixing part is snap-fit connected with the collection container. In the present invention, the end of the terminal hose of the delivery pipe of the concrete pump truck is fitted with a fixing piece and a collection container matched with the terminal hose, thereby realizing the function of preventing concrete from splashing. The device is simple in structure and low in cost, and can be fixed on the boss of the fixing part of the terminal hose through the fixing groove. When in use, it can be easily disassembled and assembled only by rotating a certain angle, and the operation is simple and the application is convenient.

Description

A safety device for preventing concrete splashing at the end of concrete delivery pipe

technical field

The invention relates to a safety mechanism for a concrete pump truck, in particular to a safety device for preventing concrete from splashing at the end of a concrete delivery pipe.

Background technique

At present, as a modern transportation equipment for concrete pouring, concrete pump trucks are widely used in various construction occasions. The concrete pump truck mainly includes several parts such as the chassis 1-1, the frame 1-2, the central pumping system, and the boom system.

As shown in FIG. 1 , the conveying pipe 1-5 is a conveying channel for concrete, and is fixed on one side of the boom 1-4 through the boom support frame. When the whole vehicle is in operation, the concrete is conveyed along the conveying pipeline under the pressure of the central pumping system, and the boom 1-4 is driven by the hydraulic cylinder and the slewing motor, which can realize free extension and rotation, and drive the conveying pipe 1-5 to reach Different construction locations. A terminal hose is connected to the end of the conveying pipe, and the terminal hose plays a role of diverting the output concrete. Figure 1 shows the recovery state of the boom when the vehicle is not in operation. The delivery pipe 1-5 is arranged on one side of the boom 1-4 and fixed by a rigid bracket. The terminal hose 1 is connected to the end of the delivery pipe 1-5. -3. The free end of the terminal hose is arranged inclined downward. The uncleaned concrete mortar and stones in the terminal hose will flow back and splash onto the concrete pump truck, which may even injure the construction personnel below and affect the performance of the whole vehicle. clean.

In the prior art, the mechanism that can make up for the above-mentioned technical defects is a pneumatic compression device installed on the terminal hose. As shown in Figure 2: the compression device 2-1 is set on the terminal hose 2-4 through ropes, bolts, etc. (the connection method is omitted in Figure 2). The air-filled cavity of the device is tightly sealed with the terminal hose, as shown in Figure 2. After the concrete conveying operation is completed, the inflation valve 2-2 is opened by remote control, and the compressed air 2-5 is pressed into the inflation cavity to flatten the terminal hose, as shown in Figure 3, preventing the concrete 2-3 from flowing out. The inflation valve 2-2 is then closed, keeping the terminal hose compressed. Before the conveying operation starts, the inflation valve 2-2 is opened, the compressed air 2-5 is discharged, and the terminal hose returns to its original state.

However, the above-mentioned prior art also has the following technical defects: the structure of the pneumatic device is too complicated, and the manufacturing cost is high; and the above-mentioned device requires that the terminal hose must be supported by special materials, such as flexible materials with good elasticity and good wear resistance. This further results in higher manufacturing and installation costs for the entire device.

Contents of the invention

The object of the present invention is to propose a safety device for preventing concrete from splashing at the end of a concrete delivery pipe with simple structure, easy operation and low cost.

In order to achieve the above object, the present invention provides a safety device for preventing the concrete from splashing at the end of the concrete delivery pipe. The terminal of the concrete delivery pipe is a terminal hose. A collection container that cooperates with the above-mentioned fixing part, the said fixing part is an annular structure that is tightly fitted and connected with the outer diameter of the terminal hose, and the said fixing part and the collection container are snap-fit connected.

Preferably, the fixing member includes two semi-circular clamps that are mated and connected with each other.

More preferably, the joints of the two semicircular clamps are fixed by bolts.

Further, at least two bosses are provided on the outer side of the fixing member, and a fixing groove matching the bosses is arranged on the inner side of the opening end of the collection container, and the bosses are snap-fit connected with the fixing grooves .

Preferably, the fixing groove includes a first vertical groove that extends axially along the collection container and communicates with the outside of the opening end of the collection container, a horizontal groove that communicates with the first vertical groove and is located inside the opening end of the collection container, and communicates with the first vertical groove. The horizontal groove is connected with the second vertical groove located inside the open end of the collection container.

Preferably, the second vertical groove is parallel to the first vertical groove.

Preferably, at least four bosses of the same shape and size are provided on the outer side of the fixing member, and two of the bosses are formed at the joints of the two ends of the two semicircular clamps. More preferably, several protrusions are provided on the inner side of the semi-circular clamp.

Preferably, the collection container is made of flexible material and has a handle mounted on its side.

Based on above-mentioned technical scheme, advantage of the present invention is:

In the present invention, the terminal hose end of the delivery pipe of the concrete pump truck is fitted with a fixing piece and a collection container matched with the terminal hose, thereby realizing the function of preventing concrete from splashing. The device is simple in structure and low in cost, and can be fixed on the boss of the fixing piece of the terminal hose through the fixing groove. When in use, it can be easily disassembled and assembled only by rotating a certain angle, and the operation is simple and the application is convenient.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is the structural representation of prior art pump truck;

Fig. 2 is the structural representation of prior art;

Fig. 3 is the schematic diagram of Fig. 2 working state;

Fig. 4 is a structural representation of the present invention;

Fig. 5 is the exploded schematic view of the semi-circular clamp of the present invention;

The top view of the present invention of Fig. 6;

Fig. 7 is the sectional view of A-A direction in Fig. 6;

Figure 8 is a top view from another angle of the present invention;

Fig. 9 is a cross-sectional view of B-B direction in Fig. 8;

FIG. 10 is an enlarged schematic view of the collection container structure in FIG. 4 .

detailed description

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Referring to Figures 4 to 9, a preferred embodiment of a safety device for preventing concrete splashing at the end of a concrete delivery pipe according to the present invention is shown, the terminal of the concrete delivery pipe is a terminal hose 3-1, and the safety device includes a The fixing piece 3-2 on the terminal hose 3-1 and the collection container 3-3 matched with the fixing piece 3-2, preferably, the collection container 3-3 is made of flexible material (such as rubber, Nylon, etc.), the material of the terminal hose described in the present invention is mainly rubber, and steel wires are arranged inside it, similar to automobile tires, this kind of material has certain toughness and elasticity, and wear resistance is better. And two handles 6 are installed on its side, which is convenient for installation and disassembly. As shown in Figure 4. The fixing part 3-2 is an annular structure tightly connected to the outer diameter of the terminal hose 3-1. The inner side of the annular structure is a smooth surface, which matches the outer diameter of the terminal hose 3-1. The snap-fit connection between the above-mentioned fixing part 3-2 and the collection container 3-3. The specific structure of the snap fit described in the present invention will be described in the following contents:

As shown in FIG. 5 , the fixing member 3-2 includes two semicircular hoops 3-2-1 and 3-2-2 that are matched and connected with each other. And, preferably, the joints of the two semicircular clamps 3-2-1 and 3-2-2 are fixed by bolts, and this kind of fixing structure is easy to implement, low in cost, and easy to fix.

Further, as shown in Fig. 4, Fig. 7 and Fig. 9, at least two bosses 4-1 are provided on the outside of the fixing member 3-2, and there is a The boss 4-1 is matched with the fixing groove 4-2, and the boss 4-1 is snap-fitted with the fixing groove 4-2.

More preferably, as shown in FIG. 4 and FIG. 10 , the fixing groove 4-2 includes a first vertical groove 5-1 extending axially along the collecting container 3-3 and communicating with the outside of the opening end of the collecting container 3-3 , the horizontal groove 5-2 that communicates with the first vertical groove 5-1 and is located inside the open end of the collection container 3-3, and communicates with the horizontal groove 5-2 and is located inside the open end of the collection container 3-3 The second vertical groove 5-3. Wherein, the first vertical groove 5-1, the horizontal groove 5-2 and the second vertical groove 5-3 can be located inside the collection container 3-3 to form a transverse groove structure; 3-3 interconnected hollow structure, this embodiment is preferably a groove structure, see FIG. 10 .

This kind of structure of the present invention makes when installing, at first the first vertical groove 5-1 of concrete collection container corresponds to the boss 4-1 of fixture 3-2, then lifts up along the terminal flexible pipe (as to Fig. 4 Lift above the middle), rotate the collection container 3-3 in the horizontal groove 5-2 according to the direction shown by the rotation arrow in Figure 6 through the handle 6, so that the boss 4-1 of the fixing part 3-2 corresponds to the collection container After the second vertical groove 5-3 of 3-3, insert the boss 4-1 into the second vertical groove 5-3.

During disassembly, at first the collection container 3-3 is lifted upwards in the second vertical groove 5-3 (as mentioned upwards in Fig. 4 ), and then in the horizontal groove 5-2 as shown by the rotation arrow in the above-mentioned Fig. 6 Rotate the collection container 3-3 in the opposite direction so that the boss 4-1 of the fixing part 3-2 corresponds to the first vertical groove 5-1 on the collection container 3-3, and then the collection container can be pulled out 3-3.

Preferably, the second vertical groove 5-3 is parallel to the first vertical groove 5-1, and in order to facilitate the installation and fixing of the fixing member 3-2, the depth of the second vertical groove 5-3 is greater than that of the first vertical groove. Groove 5-1 depth.

As shown in Figure 5, preferably, at least four bosses 4-1 of the same shape and size are provided on the outside of the fixing member 3-2, and the two semi-circular clamps 3-2-1 Two bosses 4-1 are formed at the two ends of 3-2-2. This structure is convenient for installation and saves consumables. More preferably, several protrusions are provided on the inner side of at least one of the semi-circular clamps. For example, the inner sides of the two semi-circular clamps 3-2-1 and 3-2-2 are provided with several circular protrusion structures, as shown in Figure 5, thereby increasing the distance between the clamp and the terminal hose. The friction between them makes it more firmly fixed.

More specifically, the two semicircular clamps 3-2-1 and 3-2-2 of the present invention are correspondingly set on the outer circle of the terminal hose 3-1, and the two semicircular clamps are made by turning the bolts. The inner walls of the ring-shaped clamps 3-2-1 and 3-2-2 are pressed tightly against the outer wall of the terminal hose 3-1 to complete the fixing of the clamps. In this embodiment, four bosses 4-1 are evenly arranged on the fixing part 3-2, the collection container 3-3 is a cavity with one end open and one end sealed, and four sets of bosses 4-1 are evenly and alternately arranged on the inner wall of the collection container 3-3. The four bosses 4-1 match the fixing grooves 4-2.

Therefore, the safety device for preventing concrete splashing at the end of the concrete delivery pipe of the present invention is installed at the end of the hose at the end of the concrete pump truck, and the disassembly and assembly work can be realized by simply rotating at a certain angle, which is safe, reliable, and low in cost.

Obviously, those skilled in the art can use the safety device for preventing concrete splashing at the end of the concrete delivery pipe of the present invention to form various types of material hose delivery safety devices.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (8)

1. the safety device preventing concrete conveyance tube terminal concrete from splashing down, described concrete conveyance tube terminal is terminal flexible pipe (3-1), it is characterized in that: described safety device comprises the fixture (3-2) be fixed on terminal flexible pipe (3-1) and the collection container (3-3) matched with described fixture (3-2), described fixture (3-2) for closely cooperating the loop configuration be connected with described terminal flexible pipe (3-1) external diameter, and is clasped between described fixture (3-2) with collection container (3-3) and is connected; The outside of described fixture (3-2) is provided with at least two boss (4-1), and inside the openend of described collection container (3-3), being provided with the holddown groove (4-2) matched with described boss (4-1), described boss (4-1) is clasped with holddown groove (4-2) and is connected.

2. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 1, is characterized in that: described fixture (3-2) comprises two the semi-annular clips (3-2-1 and 3-2-2) cooperatively interacting and connect.

3. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 2, is characterized in that: the junction of described two semi-annular clips (3-2-1 and 3-2-2) is bolted.

4. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 1, is characterized in that: described holddown groove (4-2) comprises and axially to extend and with the first vertical slot (5-1) be connected outside collection container (3-3) openend, with described first vertical slot (5-1) cross connection and the translot (5-2) be positioned at inside collection container (3-3) openend and be connected with described translot (5-2) and be positioned at the second vertical slot (5-3) inside collection container (3-3) openend along collection container (3-3).

5. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 4, is characterized in that: described second vertical slot (5-3) parallels with the first vertical slot (5-1).

6. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 3, it is characterized in that: the outside of described fixture (3-2) is provided with the identical boss (4-1) of at least four shape and size, and the junction, two ends of described two semi-annular clips (3-2-1 and 3-2-2) forms two boss (4-1) wherein.

7. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 6, is characterized in that: the inner side of described semi-annular clip is provided with some projections.

8. the safety device preventing concrete conveyance tube terminal concrete from splashing down according to claim 1, is characterized in that: described collection container (3-3) is made up of flexible material, and its sidepiece is provided with handle.