阅读说明：本技术 一种用于微型顶管机的泥水旁通装置 (A muddy water bypass device for miniature push bench ) 是由 洪沪民 孙焕斌 唐杰 陈莹 王子荣 牛耀伟 于 2020-06-10 设计创作，主要内容包括：本发明涉及施工设备技术领域,具体来说是一种用于微型顶管机的泥水旁通装置,顶管机泥水仓下侧设有进水管路和出水管路,进水管路中设有第一四通阀,出水管路中设有第二四通阀,第一四通阀具有第一进水口、第一出水口、加压开口和第一连接开口,加压开口通过加压管路连通至顶管机泥水仓,且加压管路处设有增压阀,第二四通阀具有第二进水口A、第二进水口B、第二出水口和第二连接开口,本发明有助于减小装置结构尺寸,节约机内空间；提高装置的通用性和适应性,使用可靠减少人工劳动量,减少职业危害结构简单,采用四通球阀代替完成进排泥模式、旁通模式和冲洗模式三个回路的切换,大大减少了装置的结构尺寸。(The invention relates to the technical field of construction equipment, in particular to a mud water bypass device for a miniature push bench, wherein a water inlet pipeline and a water outlet pipeline are arranged at the lower side of a mud water bin of the push bench, a first four-way valve is arranged in the water inlet pipeline, a second four-way valve is arranged in the water outlet pipeline, the first four-way valve is provided with a first water inlet, a first water outlet, a pressurizing opening and a first connecting opening, the pressurizing opening is communicated to the mud water bin of the push bench through the pressurizing pipeline, a pressurizing valve is arranged at the pressurizing pipeline, and the second four-way valve is provided with a second water inlet A, a second water inlet B, a second water outlet and a second connecting opening; the universality and the adaptability of the device are improved, the use is reliable, the labor amount is reduced, the occupational hazards are reduced, the structure is simple, the four-way ball valve is adopted to replace and complete the switching among a mud feeding and discharging mode, a bypass mode and a flushing mode, and the structural size of the device is greatly reduced.)

1. The utility model provides a muddy water bypass device for miniature pipe push bench, includes pipe push bench muddy water storehouse, and pipe push bench muddy water storehouse downside is equipped with water intake pipe and outlet pipe way, its characterized in that the water intake pipe in be equipped with first cross valve, outlet pipe way in be equipped with the second cross valve, first cross valve and second cross valve pass through duplex mechanism control, duplex mechanism include power push rod, power push rod on rotate and be connected with head rod and second connecting rod, simultaneously, the head rod with the first valve handle of first cross valve rotate and be connected, the second connecting rod with the second valve handle of second cross valve rotate and be connected.

2. The mud-water bypass device for mini-size push bench as claimed in claim 1, wherein said power push rod is rotatably connected with one end of a first connecting rod and one end of a second connecting rod, and at the same time, the other end of said first connecting rod is rotatably connected with the outer end of a first valve handle of said first four-way valve, and the other end of said second connecting rod is rotatably connected with the outer end of a second valve handle of said second four-way valve.

3. The mud-water bypass device for the mini-sized push bench as claimed in claim 1, wherein the first four-way valve has a first water inlet, a first water outlet, a pressurizing opening and a first connecting opening, the first water inlet is connected to the upstream side of the water inlet pipeline, the first water outlet is connected to the downstream side of the water inlet pipeline, the pressurizing opening is connected to the push bench mud-water bin through the pressurizing pipeline, and the pressurizing pipeline is provided with a pressurizing valve, the first connecting opening is connected to the second four-way valve;

the second four-way valve is provided with a second water inlet A, a second water inlet B, a second water outlet and a second connecting opening, the second water inlet A and the second water inlet B are communicated to the upstream side of the water outlet pipeline, the second water outlet is communicated to the downstream side of the water outlet pipeline, and the second connecting opening is communicated with the first four-way valve.

4. The mud water bypass device for micro push bench as claimed in claim 3, wherein the lower opening of the first four-way valve is a first water inlet, the upper opening is a first water outlet, the left opening is a pressurizing opening and the right opening is a first connecting opening.

5. The mud water bypass device for the micro push bench as claimed in claim 4, wherein the pressurizing opening is connected to a 90-degree elbow and then to a pressurizing valve, and is communicated to the mud water bin of the push bench through the pressurizing valve.

6. The mud water bypass device for micro push bench as claimed in claim 3, wherein the upper opening of the second four-way valve is a second water inlet A, the right opening is a second water inlet B, the lower opening is a second water outlet, and the left opening is a second connection opening.

7. The mud water bypass device for the micro pipe jacking machine as claimed in claim 6, wherein the second water inlet B is communicated to the upstream side of the water outlet pipeline through a 180-degree elbow.

Technical Field

The invention relates to the technical field of construction equipment, in particular to a muddy water bypass device for a miniature push bench.

Background

The mud-water type pipe jacking machine internal bypass device is a mud-water flow distribution device which is formed by combining a valve and a pipeline, is arranged in a pipe jacking machine, is connected with a mud-water bin of the pipe jacking machine in front and is connected with a mud discharge pipeline in back. It has the functions of circulating and bypassing the muddy water. When the tunneling machine is normally used for tunneling, the transition effect of mud feeding and discharging circulation is achieved, the mud discharging pipeline can be washed in the bypass circulation state, pipeline blockage is avoided, and therefore the bypass device in the machine plays an important role in top pipe construction.

The water stopping device of the traditional push bench mainly comprises a water inlet valve, a water drainage valve and a bypass valve, wherein the mud inlet and outlet valve and the bypass valve respectively need an actuating mechanism, the whole bypass device is large in installation size and complex in structure, the internal space of the miniature push bench is limited, the traditional bypass device is large and inapplicable in size, the complex actuating structure reduces the reliability of the device, the calibers of the water inlet valve, a pipeline and the mud outlet valve are the same, the water inlet pressure is influenced by the on-way resistance loss and the local pressure loss, when the pipeline flows to a mud sump, the pressure loss is overlarge, the flushing capacity for mud residues and palm surface cutting objects in a cutter head and the mud sump is weak, particularly in a hard clay layer, the phenomenon of sticking the cutter head is easily generated, and the tunneling construction efficiency is greatly influenced.

At present, a special valve body is adopted to integrate a water inlet valve and a mud discharging valve into a whole so as to reduce the structural size, but the special valve body is complex in manufacturing process and cannot be disassembled, once the inside of the valve body is blocked, the special valve body is difficult to clean, belongs to a non-standard part, parts can be integrally replaced when damaged, the circulation and the adaptability of products are reduced, and the sustainable development concept of environmental protection is not met.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides the muddy water bypass device for the miniature push bench, so that the structural size of the device is reduced, and the space in the machine is saved.

In order to achieve the purpose, the mud water bypass device for the miniature push bench comprises a push bench mud water bin, wherein a water inlet pipeline and a water outlet pipeline are arranged on the lower side of the push bench mud water bin; the second four-way valve is provided with a second water inlet A, a second water inlet B, a second water outlet and a second connecting opening, the second water inlet A and the second water inlet B are communicated to the upstream side of the water outlet pipeline, the second water outlet is communicated to the downstream side of the water outlet pipeline, and the second connecting opening is communicated with the first four-way valve.

The first four-way valve and the second four-way valve are controlled by a duplex mechanism, the duplex mechanism comprises a power push rod, a first connecting rod and a second connecting rod are connected to the power push rod in a rotating mode, meanwhile, the first connecting rod is connected with a first valve handle of the first four-way valve in a rotating mode, and the second connecting rod is connected with a second valve handle of the second four-way valve in a rotating mode.

The power push rod is rotatably connected with one end of a first connecting rod and one end of a second connecting rod, meanwhile, the other end of the first connecting rod is rotatably connected with the outer end of a first valve handle of the first four-way valve, and the other end of the second connecting rod is rotatably connected with the outer end of a second valve handle of the second four-way valve.

The upper end of the power push rod is rotatably connected with the first connecting rod and the second connecting rod, and the lower end of the power push rod is fixed with the water inlet pipeline or the water outlet pipeline.

The lower side opening of the first four-way valve is a first water inlet, the upper side opening is a first water outlet, the left side opening is a pressurizing opening, and the right side opening is a first connecting opening.

The pressurizing opening is connected with a 90-degree elbow, then is connected to a pressurizing valve, and is communicated to the push bench muddy water bin through the pressurizing valve.

The upper side opening of the second four-way valve is a second water inlet A, the right side opening is a second water inlet B, the lower side opening is a second water outlet, and the left side opening is a second connecting opening.

The second water inlet B is communicated to the upstream side of the water outlet pipeline through a 180-degree elbow.

The first connecting opening and the second connecting opening are communicated through a connecting pipeline.

The first four-way valve is connected with the water inlet pipeline, the pressurizing pipeline and the connecting pipeline through threaded connection, and the second four-way valve is connected with the water outlet pipeline, the connecting pipeline and the 180-degree elbow through threaded connection.

Advantageous effects of the invention

Compared with the prior art, the combined bypass device has the advantages that the combined structure is simple and feasible, and the installation and the disassembly are easy, so that the simple combined bypass device is provided, the structural size of the device is favorably reduced, and the space in the device is saved; the commonality and the adaptability of improving the device use and reliably reduce the hand labor volume, reduce occupational hazard simple structure, adopt the cross ball valve to replace the switching of accomplishing into mud discharging mode, bypass mode and the three return circuit of washing mode, the structural dimension of the device that has significantly reduced, it still has following advantage:

1. the number of the actuating mechanisms is reduced, the three actuating mechanisms are reduced to form a duplex mechanism, the reliability of the mechanism is improved, and the overall structure size of the device is reduced.

2. The threaded connection is adopted to replace flange connection and Harvard connection, so that the connection is reliable, the connection size is small, and the quick-wear part is convenient to replace.

3. And a full-flow four-way valve is adopted, so that the local pressure loss of water pressure is reduced, and the slag discharging capacity of muddy water circulation is improved.

4. And the integrated installation is adopted, so that the working strength of operators is reduced.

5. The bypass circulation is simple to operate, and the operation requirement on a driver of the heading machine is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention in a sludge circulating state.

FIG. 2 is a schematic diagram of the bypass cycle of the present invention.

Fig. 3 is a schematic structural diagram of the present invention in a high pressure flushing state.

Fig. 4 is a schematic diagram of the conductive state of the first four-way valve and the second four-way valve of the present invention.

In the figure: 1. the push bench mud sump 2.180 degrees elbow 3, four-way ball valve 4, pressurized gas valve 5.90 degrees elbow 6, purpose-made short silk 7, duplex mechanism 8, power push rod 9, second water inlet A10, second connection opening 11, second water inlet B12, second delivery port 13, first water inlet 14, first connection opening 15, pressurized opening 16, first delivery port.

Detailed Description

The construction and principles of such a device will be apparent to those skilled in the art from the following further description of the invention taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment provides a mud-water bypass device for a micro pipe jacking machine, which comprises a pipe jacking machine mud-water bin, wherein a water inlet pipeline and a water outlet pipeline are arranged at the lower side of the pipe jacking machine mud-water bin; the second four-way valve is provided with a second water inlet A, a second water inlet B, a second water outlet and a second connecting opening, the second water inlet A and the second water inlet B are communicated to the upstream side of the water outlet pipeline, the second water outlet is communicated to the downstream side of the water outlet pipeline, and the second connecting opening is communicated with the first four-way valve.

Referring to fig. 1, specifically, in the present embodiment, the first four-way valve is connected in a vertical pipeline of a water inlet pipeline, a portion of the water inlet pipeline located on a lower side of the first four-way valve is an upstream side, a portion located on an upper side of the first four-way valve is a downstream side, the inlet water can flow through the first four-way valve and then flow into the pipe jacking machine mud water bin, a lower opening of the first four-way valve is a first water inlet, an upper opening of the first four-way valve is a first water outlet, a left opening of the first four-way valve is a pressurizing opening, a right opening of the first four-way valve is a first connecting opening, and the left pressurizing opening is connected to a 90-degree elbow. The second four-way valve is connected in a vertical pipeline of the water outlet pipeline, the part of the water outlet pipeline, which is positioned on the upper side of the second four-way valve, is an upstream side, the part of the water outlet pipeline, which is positioned on the lower side of the second four-way valve, is a downstream side, water can flow through the second four-way valve and then continue to be discharged through the water outlet pipeline, an upper side opening of the second four-way valve is a second water inlet A, a right side opening of the second four-way valve is a second water inlet B, a lower side opening of the second four-way valve is a second water outlet, a left side opening of the second four-. And the first connecting opening and the second connecting opening are communicated through a connecting pipeline. And preferably, the first four-way valve is connected with the water inlet pipeline, the pressurizing pipeline and the connecting pipeline through threaded connection, and the second four-way valve is connected with the water outlet pipeline, the connecting pipeline and the 180-degree elbow through threaded connection.

The first four-way valve and the second four-way valve are controlled by a duplex mechanism to realize opening and closing regulation, the duplex mechanism comprises a power push rod, the upper end of the power push rod is connected with the lower end of the first connecting rod and the lower end of the second connecting rod in a rotating mode, such as hinging, the lower end of the power push rod is fixed with a water inlet pipeline or a water outlet pipeline, one end of the first connecting rod is connected with one end of the second connecting rod, meanwhile, the upper end of the first connecting rod is rotatably connected with the outer end of the first valve handle of the first four-way valve, and the upper end of the second connecting rod is rotatably connected with the outer end of the second valve handle of the second four-way valve. Thereby, the valve handles of the two four-way valves are driven to rotate by the power push rod, and the switching of the passages of the two four-way valves is further realized.