High-pressure jet grouting nozzle with anti-suction function

Abstract

The utility model discloses a high pressure injection grouting nozzle with prevent anti -suction function, include: mounting bracket, and the nozzle body of mounting bracket right side setting, still include: connecting pipeline, its installation is in mounting bracket left side, just the inside of mounting bracket is provided with first support frame, the outside of mounting bracket is provided with connecting assembly, just the inside of connecting assembly is provided with connecting block, the left side of nozzle body is provided with second sealing rubber ring. This high pressure injection grouting nozzle with prevent anti -suction function, in the process of making, have the function that prevents anti -suction, make the device after stopping working and not easy along the nozzle suction to the inside of pipeline, guarantee the service life of device, while in the process of device use, it is convenient to screen the slurry and filter, make the slurry not easy to carry a large amount of impurity and enter the nozzle inside and block the device, improve the grouting use efficiency of device, have better use effect.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure jet grouting nozzle technology, specifically a high-pressure jet grouting nozzle with anti-backflow function. Background Technology

[0002] A high-pressure jet grouting nozzle is a device used for high-pressure jet grouting construction. Its main function is to spray high-pressure water or grout through a special alloy nozzle, which impacts and breaks the soil, causing the soil particles to mix with the grout and rearrange to form a solidified body, for example;

[0003] Authorized announcement number CN221218814U discloses a high-pressure jet grouting anti-backflow nozzle. The high-pressure jet grouting anti-backflow nozzle includes a grout outlet pipe and a feed pipe. A control valve is provided between the grout outlet pipe and the feed pipe. The control valve includes a first housing and a second housing. A bracket is provided within each of the first and second housings. The bracket is installed on the inner wall of the second housing. The bracket has a sleeve, and a sliding rod is slidably installed within the sleeve. A plug is installed on the upper part of the sliding rod. The high-pressure jet grouting anti-backflow nozzle provided by this utility model achieves a sealing effect at the feed inlet of the first housing by setting a plug, and uses the pressure of the soil during grouting to control the movement of the plug, thereby achieving an automatic opening and closing effect of the control valve, and thus preventing grout from flowing back into the grouting pipe when grouting stops.

[0004] Based on existing technical solutions and actual production and processing, current high-pressure jet grouting nozzles still have the following defects: they lack the function of preventing backflow during use, causing grout to be drawn back into the pipeline along the nozzle after the device stops working, reducing the service life of the device. At the same time, it is not convenient to screen and filter the grout during use, causing the grout to easily carry a large amount of impurities into the nozzle and clog the device, reducing the grouting efficiency of the device. Therefore, this utility model provides a high-pressure jet grouting nozzle with anti-backflow function to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a high-pressure jet grouting nozzle with anti-backflow function to solve the problems mentioned in the background art, which are that the nozzle does not have the function of preventing backflow during use, causing the grout to be drawn back into the pipeline along the nozzle after the device stops working, reducing the service life of the device. At the same time, it is not convenient to screen and filter the grout during the use of the device, causing the grout to easily carry a large number of impurities into the nozzle and block the device, reducing the grouting efficiency of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure jet grouting nozzle with anti-backflow function, comprising: a mounting frame, and a nozzle body disposed on the right side of the mounting frame, and further comprising:

[0007] A connecting pipe is installed on the left side of the mounting frame, and a first support frame is provided inside the mounting frame. A connecting component is provided on the outer side of the mounting frame, and a connecting block is provided on the inner side of the connecting component. A second sealing ring is provided on the left side of the nozzle body, and a partition plate is provided inside the second sealing ring. A second support frame is provided inside the partition plate, and a blocking block is provided on the left side of the second support frame. A second guide strip is provided on the inner side of the second support frame, and a second damper is provided on the right side of the second support frame. A nozzle is provided on the right side of the nozzle body.

[0008] In one possible implementation, the connecting assembly includes a limiting block mounted on the outside of the mounting bracket, a first damper being provided on the outside of the limiting block, a guide rod being provided on the left side of the limiting block, and an operating lever being provided on the left side of the guide rod.

[0009] In one possible implementation, the limiting block and the connecting block are engaged relative to each other, and the limiting block and the guide rod are slidably disposed relative to each other.

[0010] In one possible implementation, the longitudinal section of the first guide bar is a "T" shaped structure, and the first guide bar is symmetrically arranged about the central axis of the mounting bracket.

[0011] In one possible implementation, the second guide bar is slidably disposed relative to the partition plate, and the second guide bar is symmetrically disposed vertically about the central axis of the second support frame.

[0012] In one possible implementation, the second sealing ring is engaged with both the mounting bracket and the nozzle body.

[0013] In one possible implementation, a first support frame is provided on the inner side of the first guide strip, a limit rod is provided on the rear side of the first support frame, a filter screen is provided on the inner side of the first support frame, and a first sealing ring is provided on the outer side of the first support frame.

[0014] In one possible implementation, the first support frame is slidably disposed relative to the first guide strip, and the limiting rod is threadedly connected to both the first support frame and the mounting frame.

[0015] In one possible implementation, the first sealing ring is engaged with the first support frame, and the first sealing ring is symmetrically arranged about the central axis of the first support frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-pressure jet grouting nozzle with anti-backflow function has the function of preventing backflow during use, so that the grout is not easily drawn back into the pipeline along the nozzle after the device stops working, thus ensuring the service life of the device. At the same time, it is easy to screen and filter the grout during the use of the device, so that the grout is less likely to carry a large amount of impurities into the nozzle and clog the device, thereby improving the grouting efficiency of the device and having a better performance, as detailed below:

[0017] 1. By using the operating lever to move the limiting block outward along the guide rod, the first damper is squeezed, which relaxes the limiting block's restriction on the connecting block, making it easier for the operator to remove the nozzle body to the right for cleaning and maintenance, thus improving the cleaning and maintenance efficiency of the device.

[0018] 2. The second damper, in conjunction with the second guide bar, pushes the blocking block and the second support frame to move to the left along the partition plate, so that the blocking block blocks the opening of the partition plate, preventing the slurry from being sucked back to the left side of the partition plate along the nozzle, thus improving the service life of the device.

[0019] 3. The first support frame is fixed and limited inside the connecting pipe by the first guide bar and the limiting rod, so that the filter screen filters and screens the slurry entering the device, preventing the slurry from carrying a large number of impurities into the nozzle and clogging the device, thereby improving the efficiency of the device. Attached Figure Description

[0020] Figure 1 This is a frontal cross-sectional view of the present invention.

[0021] Figure 2 This is a side view sectional structural diagram of the present invention;

[0022] Figure 3 This is a top view sectional structural diagram of the present invention;

[0023] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the overall structure of the connection between the first support frame and the filter screen of this utility model.

[0025] In the diagram: 1. Mounting bracket; 2. Connecting pipe; 3. First guide strip; 4. First support frame; 5. Limiting rod; 6. Filter screen; 7. First sealing ring; 8. Connecting assembly; 801. Limiting block; 802. First damper; 803. Guide rod; 804. Operating rod; 9. Connecting block; 10. Nozzle body; 11. Second sealing ring; 12. Divider plate; 13. Second support frame; 14. Blocking block; 15. Second guide strip; 16. Second damper; 17. Nozzle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a high-pressure jet grouting nozzle with anti-backflow function, comprising: a mounting frame 1, and a nozzle body 10 disposed on the right side of the mounting frame 1, and further comprising:

[0028] The connecting pipe 2 is installed on the left side of the mounting frame 1. The mounting frame 1 has a first support frame 4 inside, a connecting component 8 on the outside of the mounting frame 1, and a connecting block 9 on the inside of the connecting component 8. The nozzle body 10 has a second sealing ring 11 on the left side, a partition plate 12 inside the second sealing ring 11, a second support frame 13 inside the partition plate 12, a blocking block 14 on the left side of the second support frame 13, a second guide strip 15 on the inside of the second support frame 13, and a second damper 16 on the right side of the second support frame 13. The nozzle body 10 has a nozzle 17 on the right side, thus forming a complete high-pressure jet grouting nozzle.

[0029] like Figure 1 and Figure 4As shown, the connecting assembly 8 includes a limiting block 801 installed on the outside of the mounting frame 1, and a first damper 802 is provided on the outside of the limiting block 801. A guide rod 803 is provided on the left side of the limiting block 801, and an operating rod 804 is provided on the left side of the guide rod 803. The limiting block 801 and the connecting block 9 are engaged relative to each other, and the limiting block 801 and the guide rod 803 are slidably disposed relative to each other. The second sealing ring 11 is engaged relative to both the mounting frame 1 and the nozzle body 10. After the device is used, by pulling the operating rod 804 outward, the operating rod 804 causes the limiting block 801 to move outward along the guide rod 803 and press the first damper 802. At this time, the limiting block 801 relaxes its restriction on the connecting block 9, making it easier for the operator to remove the nozzle body 10 to the right for cleaning and maintenance, thus improving the cleaning and maintenance efficiency of the device.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the second guide bar 15 is slidably disposed relative to the partition plate 12, and the second guide bar 15 is symmetrically disposed about the central axis of the second support frame 13. During the use of the device, the slurry enters the interior of the nozzle body 10 through the connecting pipe 2. At this time, the slurry pushes the blocking block 14 and the second support frame 13 to the right along the second guide bar 15 to squeeze the second damper 16, so that the slurry flows to the right through the gap between the blocking block 14 and the partition plate 12 and is sprayed outward along the nozzle 17. At the same time, after the device is used, the second damper 16 pushes the blocking block 14 and the second support frame 13 to the left along the second guide bar 15 to block the opening of the partition plate 12, preventing the slurry from being sucked back to the left side of the partition plate 12 along the nozzle 17, thereby improving the service life of the device.

[0031] like Figure 1 , Figure 3 and Figure 5As shown, a first support frame 4 is provided on the inner side of the first guide strip 3, and a limiting rod 5 is provided on the rear side of the first support frame 4. A filter screen 6 is provided on the inner side of the first support frame 4, and a first sealing ring 7 is provided on the outer side of the first support frame 4. The first support frame 4 and the first guide strip 3 are slidably arranged relative to each other, and the limiting rod 5 is threadedly connected to both the first support frame 4 and the mounting frame 1. The first sealing ring 7 is engaged with the first support frame 4 and is symmetrically arranged about the central axis of the first support frame 4. The longitudinal section of the first guide strip 3 is a "T" shaped structure, and the first guide strip 3 is symmetrically arranged about the central axis of the mounting frame 1. By installing the first support frame 4 along the first guide strip 3 inside the connecting pipe 2, the limiting rod 5 is rotated to limit and fix the first support frame 4, and the filter screen 6 is placed inside the connecting pipe 2. The filter screen 6 filters and screens the slurry entering the device, preventing the slurry from carrying a large amount of impurities into the nozzle and clogging the device, thereby improving the efficiency of the device.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-pressure jet grouting nozzle with anti-backflow function, comprising: The mounting bracket (1) and the nozzle body (10) disposed on the right side of the mounting bracket (1) are characterized in that they further include: A connecting pipe (2) is installed on the left side of the mounting bracket (1), and a first support bracket (4) is provided inside the mounting bracket (1). A connecting component (8) is provided on the outside of the mounting bracket (1), and a connecting block (9) is provided on the inside of the connecting component (8). A second sealing ring (11) is provided on the left side of the nozzle body (10), and a partition plate (12) is provided inside the second sealing ring (11). A second support bracket (13) is provided inside the partition plate (12), and a blocking block (14) is provided on the left side of the second support bracket (13). A second guide strip (15) is provided on the inside of the second support bracket (13), and a second damper (16) is provided on the right side of the second support bracket (13). A nozzle (17) is provided on the right side of the nozzle body (10).

2. The high-pressure jet grouting nozzle with anti-backflow function according to claim 1, characterized in that: The connecting assembly (8) includes a limiting block (801) installed on the outside of the mounting bracket (1), and a first damper (802) is provided on the outside of the limiting block (801), and a guide rod (803) is provided on the left side of the limiting block (801), and an operating rod (804) is provided on the left side of the guide rod (803).

3. A high-pressure jet grouting nozzle with anti-backflow function according to claim 2, characterized in that: The limiting block (801) is engaged with the connecting block (9), and the limiting block (801) is slidably disposed with respect to the guide rod (803).

4. A high-pressure jet grouting nozzle with anti-backflow function according to claim 1, characterized in that: The first support frame (4) is installed inside the connecting pipe (2) along the first guide strip (3). The longitudinal section of the first guide strip (3) is a "T" shaped structure, and the first guide strip (3) is symmetrically arranged about the central axis of the mounting frame (1).

5. A high-pressure jet grouting nozzle with anti-backflow function according to claim 1, characterized in that: The second guide bar (15) is slidably disposed relative to the partition plate (12), and the second guide bar (15) is symmetrically disposed about the central axis of the second support frame (13).

6. A high-pressure jet grouting nozzle with anti-backflow function according to claim 1, characterized in that: The second sealing ring (11) is engaged with both the mounting bracket (1) and the nozzle body (10).

7. A high-pressure jet grouting nozzle with anti-backflow function according to claim 4, characterized in that: The first guide bar (3) has a first support frame (4) on its inner side, and a limit rod (5) is provided on the rear side of the first support frame (4). The first support frame (4) has a filter screen (6) on its inner side, and a first sealing ring (7) is provided on the outer side of the first support frame (4).

8. A high-pressure jet grouting nozzle with anti-backflow function according to claim 7, characterized in that: The first support frame (4) is slidably disposed relative to the first guide strip (3), and the limiting rod (5) is threadedly connected to both the first support frame (4) and the mounting bracket (1).

9. A high-pressure jet grouting nozzle with anti-backflow function according to claim 7, characterized in that: The first sealing ring (7) is engaged with the first support frame (4), and the first sealing ring (7) is symmetrically arranged about the central axis of the first support frame (4).

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