Synchronous spiral grouting pipe

Abstract

The utility model relates to the technical field of concrete construction, and discloses a synchronous spiral grouting pipe which comprises a grouting pipe body, a hollow shaft and a motor driving the hollow shaft to rotate, a sealing partition plate is arranged in the grouting pipe body and divides the grouting pipe body into a first cavity and a second cavity, an A material inlet is formed in the side wall of the first cavity, and an A material outlet is formed in the side wall of the second cavity. A B material inlet and a water inlet are formed in the side wall of the second cavity, an AB material outlet is formed in the second cavity, the hollow shaft penetrates through the sealing partition plate, spiral blades in the same direction are arranged on the hollow shaft, a feeding port is formed in the section, located in the first cavity, of the hollow shaft, and a discharging port is formed in the section, located in the second cavity, of the hollow shaft. According to the scheme, the grouting material is divided into the material A and the material B, and the material A and the material B are mixed to form the grouting material for grouting during grouting, so that the grouting material can be prevented from being coagulated in advance to block a grouting pipe; the rotating speed can be better controlled by adopting a single shaft, the quantity of the material A and the material B can be conveniently controlled, and the grouting material is more uniformly prepared.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction, in particular to a synchronous spiral grouting pipe. Background Art

[0002] The safety and durability of prefabricated building structures depend on the connection of prefabricated components with sleeve grouting materials. Grouting sleeves are filled with grouting. Generally, the grouting material is added to the grouting equipment after configuration. The grouting equipment injects the grouting material into the grouting sleeves. When the grouting sleeves are used to connect the longitudinal beam structure, the grouting equipment needs to be used for a long time to inject the grouting material into multiple grouting sleeves. Since the grouting material has a relatively short setting time of 20min to 60min or even shorter, the long-term use of the grouting equipment will cause the grouting material to set in the pipe of the grouting equipment, blocking the pipe and making it impossible to grout the subsequent grouting sleeves, affecting the progress of the project. Utility Model Content

[0003] The utility model aims to provide a synchronous spiral grouting pipe to solve the problem that grouting material will block the pipeline of the grouting equipment in the pipeline, resulting in failure to grout the subsequent grouting sleeve, thus affecting the progress of the project.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a synchronous spiral grouting pipe, comprising a grouting pipe body, a hollow shaft and a motor that drives the hollow shaft to rotate, a sealing partition plate is provided in the grouting pipe body, the sealing partition plate divides the grouting pipe body into a first chamber and a second chamber, the side wall of the first chamber is provided with an A material feed port, the side wall of the second chamber is provided with a B material feed port and a water inlet, the second chamber is tapered at the end away from the sealing partition plate, and the second chamber is provided with an AB material discharge port at the end away from the sealing partition plate; the hollow shaft passes through the sealing partition plate, the hollow shaft is rotatably connected to the sealing partition plate, the hollow shaft is provided with helical blades in the same direction, the hollow shaft is provided with a feed port at the first chamber section, the hollow shaft is provided with a discharge port at the second chamber section, a one-way valve is provided at the discharge port, and a sealing member for sealing the hollow shaft is provided at the second chamber end of the hollow shaft.

[0005] The principle of this scheme is: start the motor, add material A through the material A feed port, add material B through the material B feed port, after material A enters the first chamber, material A enters the hollow shaft from the feed port of the hollow shaft under the action of the spiral blade, and then enters the second chamber from the discharge port of the hollow shaft. Under the action of the spiral blade, material A and material B are mixed to form material AB, and after the AB material fed reaches the preset volume of the second chamber, the AB material discharge port is closed, the motor is controlled to reverse, thereby controlling the spiral blade to rotate in the opposite direction, so that the AB materials are mixed evenly, and then the AB discharge port is opened, and then the AB material is discharged from the AB material discharge port. The formed AB material will condense within a certain period of time. When using the grouting pipe, the AB material is discharged once at this time to prevent the AB material from condensing in the grouting pipe. When it is not used for a long time, water is injected into the second chamber through the water inlet to clean the grouting pipe to prevent the AB material from condensing and clogging the grouting pipe.

[0006] Advantages of this solution: This solution divides the grouting material into material A and material B, and then mixes material A and material B to form grouting material for grouting, which can avoid premature coagulation of the grouting material and clogging the grouting pipe; the hollow shaft is controlled by a motor for feeding, and the rotation speed can be better controlled by a single shaft, which is convenient for controlling the amount of material A and material B, making the grouting material more uniform and the grouting effect better; the material can be pressurized by using spiral blades for feeding, which can reduce the pressurization structure and simplify the equipment; the slurry is discharged regularly according to the coagulation time of the formed AB material to prevent the grouting material from clogging the grouting pipe; when not in use for a long time, water is injected through the water inlet for cleaning to avoid clogging the grouting pipe; the AB material is mixed evenly by the forward and reverse rotation of the spiral blade, thereby improving the quality of the assembled prefabricated parts.

[0007] Preferably, the hollow shaft is provided with a plurality of stirring rods axially near the AB material discharge port, and the stirring rods are of different lengths, and the stirring rods separated by a preset distance are in close contact with the inner wall of the second chamber. The AB materials can be mixed again by the stirring rods, so that the AB materials are mixed more fully; the stirring rods of different lengths make the flow paths of the AB materials different during the mixing process, so that the AB materials are fully mixed; some stirring rods are in close contact with the inner wall of the second chamber, and the inner wall of the second chamber is scraped and cleaned to reduce the condensation of the material on the inner wall of the second chamber.

[0008] Preferably, it also includes an air guide shell, which is located outside the grouting pipe body, and is fixedly connected to the grouting pipe body. An air guide hose is installed in the air guide shell, and an air supply device is provided on the air guide shell, and the air supply device is used to supply air into the air guide hose. By adding an air guide shell and an air guide hose, the two functions of blowing and cleaning and grouting can be achieved with one device, which can reduce equipment and make it more convenient for operators; the air guide hose can be conveniently folded and placed to prevent affecting the grouting of the AB material discharge port.

[0009] Preferably, the conical part of the second chamber is formed by a conical sleeve, the conical sleeve is fixed on the grouting pipe body, and one end of the air guide hose passes through the air guide shell and the inner cavity of the conical sleeve. The air guide hose is arranged in the conical sleeve, which is convenient for the air guide hose to perform the blowing and cleaning function and is convenient for storing the air guide hose. The second chamber is formed by the conical sleeve, which is convenient for removing the conical sleeve to clean the second chamber.

[0010] Preferably, the same-direction spiral blades in the second chamber have a gradually decreasing pitch along the direction of the AB material discharge port, so that the AB material can be intensively and fully stirred and mixed, so that the quality of the formed grouting material is better.

[0011] Preferably, the diameter of the spiral blades in the same direction in the second chamber gradually decreases along the direction of the AB material discharge port, which matches the shape of the second chamber.

[0012] Preferably, the spiral blades in the second chamber are tooth-shaped, so that the spiral blades can be divided into multiple parts, so that the AB materials can be fully stirred and mixed more evenly.

[0013] Preferably, the water inlet is located between the sealing partition plate and the feed port for material B. In this way, the second chamber can be fully cleaned through the water inlet, and the cleaning effect of the second chamber is better.

[0014] Preferably, there are a plurality of feed ports and discharge ports, and the feed ports and discharge ports are evenly distributed on the hollow shaft in an annular direction. Providing a plurality of feed ports and discharge ports increases the flow area of ​​the slurry and speeds up the grouting speed of the transferred prefabricated parts.

[0015] Preferably, the diameter of the feed port for material A is the same as that of the feed port for material B, and the feed ports for material A and B are symmetrically arranged along the sealing partition plate. The diameter of the feed port for material A is the same as that of the feed port for material B, which facilitates the control of the mixing amount of material A and material B. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a cross-sectional view of an embodiment of the utility model.

[0018] Figure 3 It is a schematic structural diagram of the hollow shaft and the co-directional spiral blades in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] The figure marks in the drawings of the specification include: grouting pipe body 1, A material feed port 101, water inlet 102, B material feed port 103, AB material discharge port 104, first chamber 105, second chamber 106, sealing partition plate 107, air guide shell 2, motor 3, hollow shaft 4, feed port 401, discharge port 402, co-directional spiral blades 5, air guide hose 6, tapered sleeve 7, end cover 8, stirring rod 9.

[0021] The embodiment is basically as shown in the attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown:

[0022] The synchronous spiral grouting pipe comprises a grouting pipe body 1, a hollow shaft 4 and a motor 3 for driving the hollow shaft 4 to rotate. One end of the grouting pipe body 1 is closed by an end cover 8. A sealing partition plate 107 is provided in the grouting pipe body 1. The sealing partition plate 107 separates the grouting pipe body 1 into a first chamber 105 and a second chamber 106, so that the first chamber 105 and the second chamber 106 are not connected. The second chamber 106 is conical, and the conical shape facilitates the injection of grouting material into the grouting sleeve. The conical part of the second chamber 106 is composed of a conical sleeve 7, and the conical sleeve 7 and the grouting pipe body 1 form the second chamber 106, and the conical sleeve 7 is fixed on the grouting pipe body 1. The second chamber 106 is composed of the conical sleeve 7, which is convenient for disassembling the conical sleeve 7 to clean the second chamber 106.

[0023] The hollow shaft 4 is located in the grouting pipe body 1, and the hollow shaft 4 passes through the sealing partition plate 107. The two ends of the hollow shaft 4 are open. The hollow shaft 4 is provided with a sealing shaft fixed at the end of the end cover 8. The sealing shaft seals the hollow shaft 4 at this end. The sealing shaft seals the hollow shaft 4 and is fixedly connected to the hollow shaft 4. The motor 3 passes through the end cover 8 and is fixedly connected to the sealing shaft, specifically by a bearing connection. During installation, the sealing shaft passes through the end cover 8 and is connected to the output shaft of the motor 3. The hollow shaft 4 is provided with a seal for sealing the hollow shaft 4 at the end of the second chamber 106. The hollow shaft 4 is closed by the seal. The seal is specifically a sealing plug. One end of the sealing plug is located in the hollow shaft 4, and the other end is fixed to the hollow shaft 4 in a detachable manner, specifically by bolt fixing. In this way, when the hollow shaft 4 needs to be cleaned, it is convenient to clean the inside of the hollow shaft 4. The axis of the grouting pipe body 1, the axis of the hollow shaft 4, and the axis of the tapered sleeve 7 coincide with each other.

[0024] The side wall of the first chamber 105 is provided with an A material feed port 101, and the side wall of the second chamber 106 is provided with a B material feed port 103. The A material feed port 101 and the B material feed port 103 are of the same size and are located on the same side of the grouting pipe body 1, so that the operator can inject A material and B material into the grouting pipe body 1 at the same time. The sealing partition plate 107 can be used to separate the raw materials when the grouting sleeve is not grouting, so as to prevent the formation of AB material condensation and blockage of the grouting pipe. In this embodiment, the AB material is a new type of early-strength and fast-hardening cementitious material (similar to mortar) compounded by magnesium phosphate cement (a kind of magnesium oxide, phosphate, retarder) and admixtures in a suitable proportion.

[0025] A water inlet 102 is provided on the side wall of the second chamber 106, and an AB material discharge port 104 is provided at the end of the second chamber 106 away from the sealing partition plate 107. The water inlet 102 is located between the sealing partition plate 107 and the B material feed port 103. In this way, the second chamber 106 can be fully cleaned through the water inlet 102, and the cleaning effect of the second chamber 106 is better. In this way, water can fully clean the second chamber 106. Among them, a one-way valve is provided at the water inlet 102 to prevent the material from being discharged from the water inlet 102 when the hollow shaft 4 rotates in the reverse direction.

[0026] The diameter of the A material feed port 101 is the same as that of the B material feed port 103, and the A material feed port 101 and the B material feed port 103 are symmetrically arranged along the sealing partition plate 107. The diameter of the A material feed port 101 and the B material feed port 103 are the same, which is convenient for controlling the mixing amount of the A material and the B material.

[0027] The hollow shaft 4 is provided with a spiral blade. The spiral blade is used for feeding, which can pressurize the material, reduce the supercharging structure, and simplify the equipment. The feeding direction of the spiral blade is from the first chamber 105 to the second chamber 106. The hollow shaft 4 is located in the first chamber 105 and is provided with a feeding port 401. The hollow shaft 4 is located in the second chamber 106 and is provided with a discharge port 402. A one-way valve is provided at the discharge port 402. The hollow shaft 4 can be used to transport material A from the first chamber 105 to the second chamber 106 to mix with material B. The diameter of the discharge port 402 is the same as that of the feed port 103 of material B. It is convenient to control the amount of material A and material B. Material A is added through the material A feed port 101, and material B is added through the material B feed port 103. After material A enters the first chamber 105, material A enters the hollow shaft 4 from the feed port 401 of the hollow shaft 4 under the action of the spiral blade, and then enters the second chamber 106 from the discharge port 402 of the control shaft, so that material A and material B are mixed to form material AB, and then material AB is discharged from the AB material discharge port 104. In this embodiment, material A and material B are pumped into the first chamber 105 and the second chamber 106 by a material pump, which is convenient for controlling the amount of material added. At the same time, when the hollow shaft 4 rotates in the opposite direction, the material will not return to the corresponding feed pipe.

[0028] The co-directional spiral blades 5 in the second chamber 106 are tooth-shaped. In this way, the blades of the spiral blades can be divided into multiple parts, so that the AB materials can be fully stirred and the AB materials can be mixed more evenly. Several blades of the co-directional spiral blades 5 in the second chamber 106 are provided with a plurality of through holes, 6 in this embodiment. By providing the through holes, the resistance of the spiral blades is reduced, so that the mixing effect of the slurry is better, and at the same time, the flow path of the slurry is increased, so that the mixing effect of the slurry is better.

[0029] The spiral blades 5 in the second chamber 106 move in the same direction along the AB material discharge port 104, and the pitch gradually decreases, so that the AB material can be intensively and fully stirred and mixed, so that the quality of the formed grouting material is better.

[0030] The diameter of the spiral blades 5 in the same direction in the second chamber 106 gradually decreases along the direction of the AB material discharge port 104 , which matches the shape of the second chamber 106 .

[0031] There are several feed ports 401 and discharge ports 402, which are evenly distributed in the hollow shaft 4 in the annular direction. The multiple feed ports and discharge ports 402 increase the flow area of ​​the slurry and the grouting speed of the prefabricated parts. In this embodiment, there are four feed ports and four discharge ports 402.

[0032] A plurality of stirring rods 9 are axially arranged near the end of the AB material discharge port 104 of the hollow shaft 4. The stirring rods 9 are of different lengths, and the stirring rods 9 separated by a preset distance are in close contact with the inner wall of the second chamber 106. The AB material can be mixed again by the stirring rods 9, so that the AB material is mixed more fully; the stirring rods 9 of different lengths make the flow paths different during the mixing process of the AB material, so that the AB material is fully mixed; some stirring rods 9 are in close contact with the inner wall of the second chamber 106, and the inner wall of the second chamber 106 is scraped and cleaned to reduce the condensation of the material on the inner wall of the second chamber 106. In this embodiment, three groups of collars are specifically arranged to be fixed on the hollow shaft 4, and the stirring rods 9 are arranged on the collars. Each group of collars is provided with three stirring rods 9 of different lengths, and one of the stirring rods 9 is in close contact with the inner wall of the second chamber 106 at the corresponding position. In this embodiment, the longer stirring rod 9 is spaced 2 mm from the inner wall of the second chamber 106 at the corresponding position.

[0033] It also includes an air guide shell 2, which is located on the outside of the grouting pipe body 1. The air guide shell 2 is fixedly connected to the grouting pipe body 1. An air guide hose 6 is installed in the air guide shell 2. An air supply device is provided on the air guide shell 2, and the air supply device is used to supply air into the air guide hose 6. By adding the air guide shell 2 and the air guide hose 6, the two functions of blowing and cleaning and grouting can be achieved with one device, which can reduce the equipment and make it more convenient for operators; the air guide hose 6 is provided, which can be conveniently folded and placed to prevent affecting the grouting of the AB material discharge port 104. The air guide shell 2 is made of plastic material and is easy to take and put. The air guide shell 2 can also facilitate the operator to pick up the grouting pipe to grout the grouting sleeve. In this embodiment, a fan of corresponding size is selected as the air supply device according to the size of the grouting pipe body 1.

[0034] One end of the air guide hose 6 passes through the air guide housing 2 and the inner cavity of the tapered sleeve 7. When the grouting sleeve needs to be cleaned, the grouting pipe is inserted into the grouting sleeve, and then the corresponding air supply device is turned on to supply air into the air guide hose 6. The air guide hose 6 is arranged in the tapered sleeve 7, which is convenient for the air guide hose 6 to perform the blowing and cleaning function, and is convenient for storing the air guide hose 6.

[0035] The air guide shell 2 is arc-shaped, and the distance between the B material feed port 103 and the air guide shell 2 near the AB material discharge port 104 is smaller than the distance between the B material feed port 103 and the AB discharge port. The air guide shell 2 is arc-shaped, which can prevent the air guide shell 2 from affecting the A material feed port 101, the B material feed port 103 and the water inlet 102; the distance between the B material feed port 103 and the air guide shell 2 near the AB material discharge port 104 is smaller than the distance between the B material feed port 103 and the AB discharge port, preventing the air guide shell 2 from affecting the discharge at the AB material discharge port 104.

[0036] The specific implementation process is as follows:

[0037] First, place the grouting pipe into the grouting sleeve, start the air supply equipment to supply air to the air guide soft, and the air guide hose 6 blows and cleans the grouting sleeve. After the cleaning is completed, directly control the air supply equipment to stop running, start the motor 3, add material A through the material A feed port 101, and add material B through the material B feed port 103. After material A enters the first chamber 105, material A enters the hollow shaft 4 from the feed port 401 of the hollow shaft 4 under the action of the spiral blade, and then enters the second chamber 106 from the discharge port 402 of the hollow shaft 4, so that material A and material B are mixed to form material AB, and after the AB material fed in reaches the preset volume of the second chamber 106 (in this embodiment), the material A is filled with a mixture of the two materials. In the example, the preset volume is specifically 60% of the second chamber 106), the AB material discharge port 104 is abutted against a baffle and other equipment to close the AB material discharge port 104, and then the motor 3 is controlled to reverse, thereby controlling the spiral blade to rotate in the opposite direction, so that the AB materials are evenly mixed, and then the AB discharge port is opened, and then the AB material is discharged from the AB material discharge port 104. The formed AB material will condense within a certain period of time. When the grouting pipe is used, the AB material is discharged once at this time to prevent the AB material from condensing in the grouting pipe. When it is not used for a long time, water is injected into the second chamber 106 through the water inlet 102 to clean the grouting pipe to prevent the AB material from condensing and clogging the grouting pipe.

[0038] This solution divides the grouting material into material A and material B, and then mixes material A and material B to form grouting material for grouting, which can prevent the grouting material from solidifying in advance and clogging the grouting pipe; the motor 3 is used to control the hollow shaft 4 for feeding, and the use of a single shaft can better control the rotation speed, which is convenient for controlling the amount of material A and material B, making the grouting material more uniform and achieving a better effect; the spiral blade is used for feeding, which can pressurize the material and reduce the pressurization structure, making the equipment simpler; the slurry is discharged regularly according to the solidification time of the formed AB material to prevent the grouting from When not in use for a long time, water is injected through the water inlet 102 for cleaning to avoid clogging the grouting pipe; an air guide shell 2 and an air guide hose 6 are added, so that the two functions of blowing cleaning and grouting can be realized with one device, which can reduce the equipment and make it more convenient for operators; the air guide hose 6 is provided, which can be conveniently folded and placed to prevent affecting the grouting of the AB material discharge port 104; the AB material can be fully mixed by the stirring rod 9, and the inner wall of the second chamber 106 can be cleaned at the same time to reduce the condensation of the AB material on the inner wall of the second chamber 106 and affect the discharge speed of the AB material.

[0039] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical schemes and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several variations and improvements can be made without departing from the technical scheme of the utility model. In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A synchronous spiral grouting pipe, comprising a grouting pipe body, characterized in that: It also includes a hollow shaft and a motor that drives the hollow shaft to rotate. A sealed partition plate is provided in the grouting pipe body, and the sealed partition plate divides the grouting pipe body into a first chamber and a second chamber. The side wall of the first chamber is provided with an A material feed port, and the side wall of the second chamber is provided with a B material feed port and a water inlet. The end of the second chamber away from the sealed partition plate is conical, and the end of the second chamber away from the sealed partition plate is provided with an AB material discharge port; The hollow shaft passes through the sealing partition plate, and is rotatably connected to the sealing partition plate. The hollow shaft is provided with unidirectional spiral blades. The hollow shaft is provided with a feed port in the first chamber section, and a discharge port in the second chamber section. A one-way valve is provided at the discharge port. The hollow shaft is provided with a seal for sealing the hollow shaft at the second chamber end.

2. The synchronous spiral grouting pipe according to claim 1, characterized in that: The hollow shaft is axially provided with a plurality of stirring rods near the AB material discharge port, the stirring rods have different lengths, and the stirring rods separated by a preset distance are in close contact with the inner wall of the second chamber.

3. The synchronous spiral grouting pipe according to claim 1, characterized in that: It also includes an air guide shell, which is located on the outside of the grouting pipe body and is fixedly connected to the grouting pipe body. An air guide hose is installed in the air guide shell, and an air supply device is provided on the air guide shell, which is used to supply air into the air guide hose.

4. The synchronous spiral grouting pipe according to claim 3 is characterized in that: The conical part of the second chamber is composed of a conical sleeve, which is fixed on the grouting pipe body, and one end of the air guide hose passes through the air guide shell and the inner cavity of the conical sleeve.

5. The synchronous spiral grouting pipe according to claim 1, characterized in that: The same-direction spiral blades in the second chamber have a pitch that gradually decreases along the direction of the AB material discharge port.

6. The synchronous spiral grouting pipe according to claim 1, characterized in that: The diameter of the blades of the same-direction spiral blades in the second chamber gradually decreases along the direction of the AB material discharge port.

7. The synchronous spiral grouting pipe according to claim 1, characterized in that: The same-direction spiral blades located in the second chamber are tooth-shaped.

8. The synchronous spiral grouting pipe according to claim 1, characterized in that: The water inlet is located between the sealing partition plate and the B material feed port.

9. The synchronous spiral grouting pipe according to claim 1, characterized in that: A plurality of the feed ports and the discharge ports are provided, and the feed ports and the discharge ports are evenly distributed on the hollow shaft in an annular direction.

10. The synchronous spiral grouting pipe according to claim 1, characterized in that: The diameter of the feed inlet for material A is the same as the diameter of the feed inlet for material B, and the feed inlet for material A and the feed inlet for material B are symmetrically arranged along the sealing partition plate.

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