CN211777967U - Novel concrete pump distribution valve - Google Patents

Abstract

The utility model discloses a novel concrete pump distribution valve, including the valve box body, hydro-cylinder and swing arm, be equipped with Y shape concrete pump pipe valve in the valve box body, the one end of valve box body list mouth is as concrete outlet, the concrete import is regarded as to the two port one ends of valve box body, the exit end of Y shape concrete pipe valve is installed in valve box body front bezel seal cover, the one end of drive shaft is fixed on Y shape concrete pipe valve, the other end passes through involute spline and is connected with the swing arm, a hydraulic cylinder is connected respectively to the swing arm both sides, two entrance points of Y shape concrete pipe valve are fixed with a cutting ring respectively, two cutting rings are connected with the glasses board sliding contact who installs on valve box body right-hand member swash plate, the utility model has the characteristics of the remote transport of high pressure, material strong adaptability, valve box body structural strength is high.

Description

Novel concrete pump distribution valve

Technical Field

The utility model belongs to the technical field of concrete conveying equipment, especially, relate to a novel concrete pump distributing valve.

Background

Concrete pumps are concrete machines that continuously transport concrete through a pipeline using pressure. At present, the distribution valve types on the market are mainly divided into an S-shaped pipe valve, an inclined gate valve, a butterfly valve, a skirt valve and the like, wherein the butterfly valve and the inclined gate valve are only suitable for medium-low pressure concrete pumps, the S-shaped pipe valve and the skirt valve are suitable for medium-high pressure pump applications, and if high-pressure and ultrahigh-pressure products with the outlet pressure of more than 20 MPa are researched and developed, only the S-shaped pipe valve is suitable for application. The S-pipe valve concrete pump has the highest market share due to the advantages of large outlet pressure, low pressure loss and the like, is mainly applied to high-rise buildings such as buildings and bridges and long-distance horizontal conveying, but has higher requirements on concrete slump and proportion, and if pumping dry and hard concrete with low slump, the phenomenon of valve box blockage is easy to occur, so that construction interruption is caused to influence the construction efficiency. The inclined gate valve concrete pump has strong adaptability to dry and hard concrete materials with low slump but the outlet pressure is generally not more than 8MPa, belongs to a medium-low pressure concrete pump, is only suitable for short-distance conveying and is mainly applied to the fields of tunnel engineering, hydraulic engineering and the like. The adaptability of the skirt valve to concrete materials is equivalent to that of an S-shaped pipe valve, but the structural strength of a valve box body is lower than that of the S-shaped pipe valve box body, so that the application of the skirt valve in the field of ultrahigh pressure is limited. Aiming at the defects of the prior art, the development of a novel concrete distribution valve device which has the advantages of long-distance high-pressure conveying, strong material adaptability and high structural strength of a valve box body and is suitable for research and development of ultrahigh-pressure concrete pumps in the later period is very important.

Disclosure of Invention

An object of the utility model is to improve the not enough of prior art and provide a novel concrete distribution valve device, have high-pressure remote transport, material strong adaptability, valve box structural strength height, the characteristics that suitable later stage superhigh pressure concrete pump research and development was used.

The utility model aims at realizing like this, a novel concrete pump distribution valve, including the valve box body, hydro-cylinder and swing arm, its characteristics are equipped with the concrete pump pipe valve in the valve box body, the concrete pipe valve is Y shape, the one end of single-port is as concrete outlet, two mouthful of one end is as concrete inlet, the exit end of Y shape concrete pipe valve is installed in the valve box body front bezel seal cover, the one end of drive shaft is fixed on Y shape concrete pipe valve, the other end passes through the involute spline and is connected with the swing arm, a hydraulic cylinder is connected respectively to the swing arm both sides, two entrance points of Y shape concrete pipe valve are fixed with a cutting ring respectively, two cutting rings are connected with the glasses board sliding contact who installs on the valve box body right-hand member swash.

In order to further realize the purpose of the utility model, the right end inclined plate of the valve box body is positioned at the lower part of the right side of the valve box body, and the included angle between the inclined plate and the horizontal line is 77-79 degrees.

Compared with the prior art, the utility model has the following characteristics of showing and positive effect: 1. the utility model adopts the Y-shaped concrete pipe valve, the shape of the pipe valve is changed, which is completely different from the prior distribution valve type and is similar to the letter Y, so the pipe valve is called as the Y-shaped pipe valve, the inner channel is straight, and the concrete is smooth through the channel of the Y-shaped pipe valve; 2. the adaptability is stronger, and the application range is wide. The utility model discloses back plate lower part concrete cylinder junction design is the hang plate, does benefit to the material and gets into the concrete cylinder, and adaptable dry and hard concrete 'S pumping is structurally adopted the sealed cover of discharge gate end to design, reduces the pressure leakage loss, consequently the utility model discloses compromise S pipe valve export pressure height, loss of pressure and gate valve to the dry and hard material strong adaptability' S that the slump is low advantage, both can be to pumping conventional concrete material and can pump by pumping the dry and hard concrete material that the slump is low again, very big expansion the kind scope of pumpable material, adapt to different kind engineering construction. 3. The utility model discloses an swash plate is arranged to valve box body right-hand member lower part, synthesizes a large amount of practical application cases and draws the conclusion, and the angle is when 11-13 between concrete cylinder feed inlet and the valve box back plate, promptly with the contained angle of water flat line at 77-79, does benefit to the concrete pump and inhales the material, consequently designs the valve box back plate lower part concrete cylinder junction for the hang plate, this all is different with present all valve box structural style. 4. The distribution valve box body has high strength. The valve box body is integrally welded by hot stamping, the integral strength is equivalent to that of an S-pipe valve type valve box, the valve box body can adapt to the application of a later-stage ultrahigh-pressure concrete pump, and compared with the existing valve box type, the front plate of the skirt valve box body is in a bolt connection type and is not suitable for the application of the ultrahigh-pressure concrete pump, so that the application range of the skirt valve box body is limited; the inclined gate valve adopts a valve box with a casting structure, and the overall strength is low, so that the inclined gate valve is not suitable for being applied to a high-pressure pump. 5. The suction efficiency is high. The S pipe valve box and the skirt valve box are designed by vertical rear plates, so that the defect of low material suction rate can be caused when pumping dry and hard concrete materials with low slump, the fault of valve box blockage is caused, and the construction efficiency is influenced. The utility model discloses valve box body back plate lower part adopts the slope design, and after the concrete material got into the valve box, because the dead weight can fall into the concrete jar smoothly, did benefit to the concrete jar and inhaled the material, so can compensate the not suitable pump sending of S valve and slump low hard material and the shortcoming that the slide valve can not remote transport. 6. The pressure loss is low. In the whole valve box connection mode, only the cutting ring is in sliding fit with the plane of the glasses plate, and the joint of the outlet part and the pipeline is sealed by the sealing element, so that the pressure leakage loss is ensured to be minimum. The existing skirt valve structure has the defects that the feeding and the discharging in the valve box are in plane sliding fit, the pressure loss is large, and the pressure loss of a discharging port is large due to the limitation of the structural type of the gate valve. 7. The valve box is convenient to clean. If the S body blocks up the condition at the pump sending in-process, the clearance gets up more troublesome, can only dismantle the back clearance, the utility model discloses a Y type pipe valve body is straight difficult jam, even take place to block up the clearance also very convenient. And after pumping, the distribution valve needs to be cleaned, so that concrete is not easy to remain.

The utility model discloses effectively solved among the prior art distribution valve can not provide compromise high pressure remote transport, material adaptability wide range, the high advantage of valve box body structural strength, improved concrete pump market competition to also establish the basis for later stage superhigh pressure concrete pump research and development design, also will bring considerable economic benefits and social simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of fig. 1.

In the figure: 1. the device comprises a sealing sleeve, 2, a concrete pump pipe valve, 3, a valve box body, 4, a driving shaft, 5, a swing arm, 6, a glasses plate, 7, a cutting ring, 8, an inclined plate, 9 and an oil cylinder.

Detailed Description

A novel concrete pump distributing valve, referring to fig. 1 and 2, a valve box body 3 adopts hot stamping integral welding, a concrete pump pipe valve 2 is arranged in a valve box body 3, the concrete pipe valve 2 is Y-shaped, one end of a single opening of the valve box body 3 is used as a concrete outlet, one end of a double opening of the valve box body 3 is used as a concrete inlet, an outlet end of the Y-shaped concrete pipe valve 2 is installed in a front plate sealing sleeve 1 of the valve box body 3, one end of a driving shaft 4 is fixed on the Y-shaped concrete pipe valve 2, the other end of the driving shaft is connected with a swing arm 5 installed on the outer side of the valve box body 3 through an involute spline, two sides of the swing arm 5 are respectively connected with an oil cylinder 9, a cutting ring 7 is fixed at an inlet end of the Y-shaped concrete pipe valve 2, the cutting ring 7 is in sliding contact connection with a glasses plate 6 installed on a right end inclined plate 8 of the valve box body 3.

Use the utility model discloses the time, be connected the export and the pipeline of Y shape concrete pipe valve 2, the import is connected with the concrete cylinder, stretch out in turn through two hydro-cylinders 9 and drive 5 reciprocating swings of swing arm with the withdrawal, drive and 5 splined connection's of swing arm Y shape concrete pipe valve 2 reciprocating swings, 3 right-hand members swash plates 8 of valve box body adopt the slope design, the suction area of external concrete cylinder has been increaseed, and behind the concrete material entering valve box, because the dead weight can fall into the concrete cylinder smoothly, do benefit to the concrete cylinder and inhale the material, thereby to a great extent has improved the suction efficiency of concrete cylinder. The Y-shaped concrete pipe valve 2 is designed as a straight cone pipe, so that the flowing of materials in the valve is facilitated, the cleaning of an internal channel is convenient when the valve is blocked, in the whole valve box connection mode, only the cutting ring is in sliding fit with the plane of the glasses plate 6, and the joint of the outlet part and a pipeline is sealed by a sealing element, so that the minimum pressure leakage loss is ensured.

Claims (2)

1. The utility model provides a novel concrete pump distribution valve, including the valve box body, hydro-cylinder and swing arm, characterized by is equipped with the concrete pump pipe valve in the valve box body, the concrete pipe valve is Y shape, the one end of valve box body list mouth is as concrete outlet, the concrete import is regarded as to valve box body two port one end, the exit end of Y shape concrete pipe valve is installed in valve box body front bezel seal cover, the one end of drive shaft is fixed on Y shape concrete pipe valve, the other end passes through the involute spline and is connected with the swing arm, a hydro-cylinder is connected respectively to the swing arm both sides, two entrance points of Y shape concrete pipe valve are fixed with a cutting ring respectively, two cutting rings are connected with the glasses board sliding contact who installs on valve.

2. The novel concrete pump distributing valve as claimed in claim 1, wherein the right end inclined plate of the valve box body is positioned at the lower part of the right side of the valve box body, and the included angle between the inclined plate and the horizontal line is 77-79 °.

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