Anti-blocking mud suction device for MJS construction

Abstract

The utility model discloses an anti-blocking mud suction device for MJS construction, and belongs to the technical field of construction equipment. Comprising a drill bit mud discharging assembly, a first cavity used for containing an electric valve is formed in the drill bit mud discharging assembly, the first cavity is communicated with a mud discharging opening, and the electric valve comprises a movable valve opening and closing tongue arranged at the mud discharging opening and an electric valve push rod arranged in the first cavity. The electric valve push rod is fixedly connected with the valve switch tongue and drives the valve switch tongue to move along the sludge discharge port; one end of the electric valve push rod away from the valve switch tongue is connected with an electric valve seat; the side, close to the sludge discharge port, of the valve switch tongue is obliquely arranged, and the inclination direction is the direction away from the sludge discharge port. The movable valve switch tongue is arranged, so that the opening size of the mud discharge port is adjusted, the possibility of mud blockage is effectively reduced, the valve switch tongue is obliquely arranged, the mud discharge port can be effectively sealed and blocked, the mud discharge angle of the mud discharge port can be changed, and the applicability is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction equipment, in particular to an MJS construction anti-blocking mud suction device. Background Art

[0002] The MJS process (MetroTetSyetem process) is also known as the all-round high-pressure jetting method. Based on the original high-pressure jet grouting method, it uses a ground pressure monitoring device, a unique multi-transportation channel drill tool and a forced mud suction device at the front end of the drill bit to achieve forced slurry discharge in the hole and ground pressure monitoring, and controls the ground pressure by adjusting the forced slurry discharge volume, reduces the possibility of surface deformation, reduces the impact of construction on the surrounding environment, and further guarantees the pile diameter. The MJS super jetting method is a new method. It uses triple or quadruple tubes to transport three media, water, gas, and slurry respectively. The cement slurry is sprayed with ultra-high pressure (35-40Mpa) and the air flow around it is used for secondary impact cutting of the soil to form a larger diameter and evenly stirred rotary jet body. The diameter of the MJS ultra-high pressure rotary jet pile is significantly larger than that of the domestic triple tube rotary jet pile, and the impact on the surrounding environment is greatly reduced. However, the existing MJS ultra-high pressure rotary jet pile is prone to mud blockage because it cannot conveniently adjust the size of the mud discharge port. Utility Model Content

[0003] 1. Technical problems to be solved by the utility model

[0004] The utility model aims to solve the problem that the existing MJS ultra-high pressure rotary jet pile cannot conveniently adjust the size of the mud discharge port and is prone to mud blockage.

[0005] 2. Technical solution

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0007] The utility model discloses an MJS construction anti-blocking mud suction device, comprising a drill bit mud discharge component, the drill bit mud discharge component is provided with a cavity one for placing an electric valve, the cavity one is communicated with a mud discharge port, the electric valve comprises a movable valve switch tongue arranged at the mud discharge port and an electric valve push rod arranged in the cavity one, the electric valve push rod is fixedly connected with the valve switch tongue and drives the valve switch tongue to move along the mud discharge port; one end of the electric valve push rod away from the valve switch tongue is connected to an electric valve seat; the side of the valve switch tongue close to the mud discharge port is inclined and the inclination direction is the direction away from the mud discharge port.

[0008] Preferably, two parallel electric valve push rods and a displacement guide rod are provided in cavity one, the drill bit mud removal assembly is provided with cavity two connected with cavity one, and the displacement guide rod is arranged in cavity two and cavity one and can move freely along cavity two and cavity one.

[0009] Preferably, a displacement sensor for detecting the moving distance of the displacement guide rod is provided in the second cavity, and the displacement sensor is arranged at the end of the second cavity.

[0010] Preferably, a displacement sensing device is provided at the connection between the second cavity and the first cavity, and the displacement sensing device is sleeved on the outer side of the displacement guide rod to detect whether the displacement guide rod moves.

[0011] 3. Beneficial effects

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] The utility model discloses an MJS construction anti-blocking mud suction device, comprising a drill mud discharge assembly, a cavity one for placing an electric valve on the drill mud discharge assembly, the cavity one being connected to the mud discharge port, the electric valve comprising a movable valve switch tongue arranged at the mud discharge port and an electric valve push rod arranged in the cavity one, the electric valve push rod being fixedly connected to the valve switch tongue and driving the valve switch tongue to move along the mud discharge port; an end of the electric valve push rod away from the valve switch tongue is connected to an electric valve seat; the side of the valve switch tongue close to the mud discharge port is tilted and the tilting direction is in the direction away from the mud discharge port. By setting a movable valve switch tongue to adjust the opening size of the mud discharge port, the opening size can be manually adjusted according to actual conditions such as mud flow, effectively reducing the possibility of mud blockage, and the valve switch tongue is tilted, which can effectively seal and block the mud discharge port, and can also change the angle of mud discharge from the mud discharge port, making it more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the longitudinal section of an MJS construction anti-blocking mud suction device of the utility model;

[0015] Figure 2 It is a sectional view of the cross section of an MJS construction anti-blocking mud suction device of the utility model.

[0016] Explanation of the symbols in the schematic diagram:

[0017] 1. Drill bit mud discharge assembly; 2. Electric valve seat; 3. Electric valve push rod; 4. Valve switch tongue; 5. Valve cover; 6. Displacement sensor; 7. Displacement sensing device; 8. Cavity 1; 9. Cavity 2; 10. Mud discharge port; 11. Displacement guide rod. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Example 1

[0025] Refer to the attached Figure 1-2 , a MJS construction anti-blocking mud suction device of this embodiment comprises a drill mud discharge assembly 1, the drill mud discharge assembly 1 is provided with a cavity 8 for placing an electric valve, the cavity 8 is connected with a mud discharge port 10, the electric valve comprises a movable valve switch tongue 4 arranged at the mud discharge port 10 and an electric valve push rod 3 arranged in the cavity 8, the electric valve push rod 3 is fixedly connected with the valve switch tongue 4 and drives the valve switch tongue 4 to move along the mud discharge port 10; the end of the electric valve push rod 3 away from the valve switch tongue 4 is connected with an electric valve seat 2; the side of the valve switch tongue 4 close to the mud discharge port 10 is inclined and the inclination direction is away from the mud discharge port 10. In this embodiment, the opening size of the mud discharge port 10 is adjusted by setting a movable valve switch tongue 4, and the opening size can be manually adjusted according to the actual situation such as mud flow, so as to effectively reduce the possibility of mud blockage, and the valve switch tongue 4 is inclined, which can effectively seal and block the mud discharge port 10, and can also change the angle of mud discharge from the mud discharge port 10, so that it has stronger applicability.

[0026] The upper end area of ​​the mud outlet 10 of this embodiment is further provided with a valve cover 5, and the valve cover 5 can effectively prevent large stones or mud blocks in the mud from clogging the mud outlet 10, further reducing the possibility of clogging.

[0027] Two parallel electric valve push rods 3 and a displacement guide rod 11 are arranged in the cavity 18, and the drill bit mud discharge assembly 1 is provided with a cavity 29 connected to the cavity 18. The displacement guide rod 11 is arranged in the cavity 29 and the cavity 18 and can move freely along the cavity 29 and the cavity 18. A displacement sensor 6 for detecting the moving distance of the displacement guide rod 11 is arranged in the cavity 29, and the displacement sensor 6 is arranged at the end of the cavity 29. A displacement sensing device 7 is arranged at the connection between the cavity 29 and the cavity 18, and the displacement sensing device 7 is sleeved on the outer side of the displacement guide rod 11 to detect whether the displacement guide rod 11 moves. The displacement sensor 6 and the displacement sensing device 7 can monitor the moving distance of the displacement guide rod 11 in real time to obtain the actual opening size of the mud discharge port 10, which is convenient for control.

[0028] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A MJS construction anti-blocking mud suction device, characterized by: The drill bit mud discharge assembly (1) comprises a cavity (8) for accommodating an electric valve, the cavity (8) being connected to a mud discharge port (10), the electric valve comprising a movable valve switch tongue (4) arranged at the mud discharge port (10) and an electric valve push rod (3) arranged in the cavity (8), the electric valve push rod (3) being fixedly connected to the valve switch tongue (4) and driving the valve switch tongue (4) to move along the mud discharge port (10); an end of the electric valve push rod (3) away from the valve switch tongue (4) is connected to an electric valve seat (2); a side of the valve switch tongue (4) close to the mud discharge port (10) is inclined and the inclination direction is the direction away from the mud discharge port (10).

2. The MJS construction anti-blocking mud suction device according to claim 1 is characterized in that: Two parallel electric valve push rods (3) and a displacement guide rod (11) are arranged in the cavity one (8); the drill bit mud removal assembly (1) is provided with a cavity two (9) which is connected with the cavity one (8); the displacement guide rod (11) is arranged in the cavity two (9) and the cavity one (8) and can move freely along the cavity two (9) and the cavity one (8).

3. A MJS construction anti-blocking mud suction device according to claim 2, characterized in that: A displacement sensor (6) for detecting the moving distance of the displacement guide rod (11) is arranged in the second cavity (9), and the displacement sensor (6) is arranged at the end of the second cavity (9).

4. The MJS construction anti-blocking mud suction device according to claim 2 is characterized in that: A displacement sensing device (7) is provided at the connection between the second cavity (9) and the first cavity (8), and the displacement sensing device (7) is sleeved on the outer side of the displacement guide rod (11) for detecting whether the displacement guide rod (11) moves.

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