Spray grouting anti-back-suction spray head

Abstract

The utility model discloses a jet grouting anti-back suction nozzle, which relates to the field of jet grouting, and comprises a main jet head, one end of the main jet head is clamped with a mounting screw ring, the top surface of the main jet head is horizontally provided with a top clamping groove, the inner side edge of the top clamping groove is inserted with a shifting block, the top surface of the main jet head is provided with a matching groove, and the matching groove is provided with a through hole. An overturning top groove is formed in the top surface of the main spraying head, an overturning block is inserted into the inner side edge of the overturning top groove, a connecting rod is horizontally arranged on the top surface of the main spraying head, a buckling sealing plate is in butt joint with the end, away from the mounting screw ring, of the main spraying head, and a matching block is fixedly arranged on the side edge, away from the main spraying head, of the buckling sealing plate; a horizontal moving plate is horizontally inserted into the inner side edge of the top clamping groove, an integrated overturning type sealing structure is adopted, so that operation is more convenient, and meanwhile, the overturning type sealing structure can effectively seal an opening to prevent the back suction condition.

Description

Technical Field

[0001] The utility model relates to the technical field of jet grouting, in particular to a jet grouting anti-back-suction nozzle. Background Art

[0002] Grouting is the process of pouring certain solidifying materials, such as cement, lime or other chemical materials, into the foundation rock and soil within a certain range under the foundation to fill the cracks and pores in the rock and soil, prevent foundation leakage, and improve the integrity, strength and rigidity of the rock and soil. Grouting is often used to construct a foundation anti-seepage curtain in water-retaining structures such as gates, dams, and dikes, and is the main foundation treatment measure for hydraulic structures.

[0003] For the current grouting operation, a handheld spray head structure is installed on the pipe end. The traditional spray head is a single hard pipe structure, so when the extraction equipment is turned off, the spray head will be plugged into the inside of the grouting to cause back suction, causing the back-sucked material to affect the next grouting. In addition, the cover plate structure is threaded and sealed, which makes the operation more complicated and affects the installation and use. Utility Model Content

[0004] The purpose of the utility model is to provide a jet grouting anti-back-suction nozzle to solve the problem raised in the above background technology that during the current grouting operation, a handheld jet head structure is installed at the pipe end. The traditional jet head is a single hard pipe structure, so that when the extraction equipment is turned off, the jet head will be plugged into the inside of the grouting to form back-suction, resulting in the back-suctioned material affecting the next grouting use, and the threaded fixing and sealing of the cover plate structure in addition makes the operation more cumbersome and affects the installation and use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A jet grouting anti-back-suction nozzle comprises a main jet head, one end of the main jet head is clamped with a mounting screw ring, a top clamping groove is horizontally opened on the top surface of the main jet head, a toggle block is inserted into the inner side edge of the top clamping groove, a matching groove is opened on the top surface of the main jet head, a flip top groove is opened on the top surface of the main jet head, a flip block is inserted into the inner side edge of the flip top groove, a connecting rod is horizontally arranged on the top surface of the main jet head, a buckle sealing plate is butt-jointed at one end of the main jet head away from the mounting screw ring, a matching block is fixedly arranged on the side edge of the buckle sealing plate away from the main jet head, and a horizontal shift plate is horizontally inserted into the inner side edge of the top clamping groove A buckle block is horizontally fixed on one end of the horizontal moving plate, an inner top block is clamped on the inner bottom end of the matching groove, inner sleeve holes are symmetrically opened on the inner side of the flip top groove, and an end buckle sealing groove is opened on the end of the main injection head away from the mounting screw ring, a side buckle ring is fixedly set on one side of the buckle sealing plate, a through hole is opened on the top surface of the matching block, a support shaft rod is horizontally inserted into the side of the flip block, and a support spring is fixedly sleeved on the outer side of the support shaft rod, a middle groove is horizontally opened on the top surface of the horizontal moving plate, a fixing rod is vertically inserted into the inner side of the middle groove, and a top spring is horizontally clamped on the inner side of the middle groove.

[0007] As a preferred embodiment of the present utility model: the two ends of the main injection head are open, and a side clamping ring of the mounting screw ring is clamped in a groove position at an edge of an open end of the main injection head, the top clamping groove is opened at one end position close to the mounting screw ring, and the bottom end of the toggle block is extended and fixedly connected to one end position of the top surface of the horizontal moving plate.

[0008] As a preferred embodiment of the utility model: the flip top groove is opened at one end away from the mounting screw ring, and the matching groove is opened between the flip top groove and the top clamping groove, the top end of the flip block passes through the top opening of the flip top groove and extends to the outer edge, and the extended end is fixedly connected to one end of the bottom surface of the connecting rod, the connecting rod is arranged in an L-shape, and one end of the connecting rod is fixedly arranged on the top surface of the buckled sealing plate.

[0009] As a preferred embodiment of the utility model: one end of the horizontal moving plate extends horizontally to the inner side edge of the matching groove, the snap block is horizontally plugged into the inner side edge of the through hole, the bottom end of the inner top block is plugged into the inner bottom end groove position of the matching groove, and the plug-in bottom end of the inner top block is set on the spring structure, and the top end of the inner top block is docked at one end of the matching block.

[0010] As a preferred embodiment of the utility model: the side buckle ring is buckled on the inner side of the end buckle sealing groove, the support shaft rod is horizontally inserted and inserted on the side of the flip block near the bottom end, and the two ends of the support shaft rod are horizontally correspondingly inserted and arranged on the inner side of the inner sleeve hole.

[0011] As a preferred embodiment of the utility model: the support springs are all fixedly connected to the inner side of the inner sleeve hole in a one-to-one correspondence, the middle groove is horizontally penetrated and opened at the center line position of the top surface of the horizontal movable plate, the fixing rod is inserted into the inside of the middle groove, and the two ends of the fixing rod are fixedly set on the inner side wall of the top clamping groove, and one end of the top spring is horizontally docked and set on one side of the fixing rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges the main spray head at the end position of the installation pipe through the installation screw ring at one end, and the main spray head is fixedly installed after the installation screw ring is rotated. After the installation is completed, the main spray head is held and the buckle sealing plate at one end is flipped upward, so that the connecting rod and the flip block on the top surface are flipped inside the flip top groove, and the buckle sealing plate is flipped to the top surface position of the main spray head, so that the matching block on the side is plugged into the inside of the matching groove, and the horizontal moving plate is squeezed under the support of the top spring, so that the buckle block at one end is horizontally plugged into the inside of the through hole and fixed, and then the main spray head can be used to spray outward. The grouting treatment is carried out by injection. When the injection is not carried out, the toggle block on the top surface can be toggled to drive the horizontal moving plate to move horizontally, so that the buckle block at one end is away from the through hole, and the matching block is pushed upward by the inner top block. At the same time, under the support of the support spring, the flip block and the connecting rod are driven to flip, so that the buckle sealing plate at one end is buckled and set at the open end of the main injection head, and the side buckle ring on the side is buckled and set inside the end buckle sealing groove to fix it to complete the sealing effect. The integrated flip sealing structure makes it more convenient to operate, and the flip sealing structure can effectively seal the opening to prevent back suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a jet grouting anti-back-suction nozzle;

[0016] Figure 2 It is a structural schematic diagram of the front view cross-section connection details of a main jet head of a jet grouting anti-back-suction nozzle;

[0017] Figure 3 It is a structural schematic diagram of the side view section connection details of a main jet head of a jet grouting anti-back-suction nozzle;

[0018] Figure 4 It is a structural schematic diagram of the front view cross-sectional connection details of a buckle-jointed sealing plate of a jet grouting anti-back-suction nozzle;

[0019] Figure 5 This is a structural schematic diagram of the top view connection details of a horizontal shift plate of a jet grouting anti-back-suction nozzle.

[0020] In the figure: 1. main injection head; 2. mounting screw ring; 3. top snap-fit ​​groove; 4. toggle block; 5. matching groove; 6. flip top groove; 7. flip block; 8. connecting rod; 9. buckle sealing plate; 10. matching block; 11. horizontal shift plate; 12. buckle block; 13. inner top block; 14. inner sleeve hole; 15. end buckle sealing groove; 16. side buckle ring; 17. through hole; 18. support shaft; 19. support spring; 20. middle channel; 21. fixing rod; 22. top spring. DETAILED DESCRIPTION

[0021] See also Figure 1 In the embodiment of the utility model, a jet grouting anti-back-suction nozzle comprises a main jet head 1, one end of the main jet head 1 is clamped with a mounting screw ring 2, a top clamping groove 3 is horizontally opened on the top surface of the main jet head 1, a toggle block 4 is inserted on the inner side of the top clamping groove 3, both ends of the main jet head 1 are open, and a clamping ring on one side of the mounting screw ring 2 is clamped and set at an edge groove position of an open end of the main jet head 1, the top clamping groove 3 is opened at one end position close to the mounting screw ring 2, the bottom end of the toggle block 4 is extended and fixedly connected to one end position of the top surface of the horizontal moving plate 11, a matching groove 5 is opened on the top surface of the main jet head 1, and a flip top groove 6 is opened on the top surface of the main jet head 1, A flip block 7 is inserted into the inner side of the flip top groove 6, a connecting rod 8 is horizontally arranged on the top surface of the main injection head 1, and a buckle sealing plate 9 is docked at the end of the main injection head 1 away from the mounting screw ring 2. The flip top groove 6 is opened at one end away from the mounting screw ring 2, and the matching groove 5 is opened between the flip top groove 6 and the top clamping groove 3. The top end of the flip block 7 extends to the outer side through the top opening of the flip top groove 6, and the extended end is fixedly connected to one end of the bottom surface of the connecting rod 8. The connecting rod 8 is arranged in an L shape, and one end of the connecting rod 8 is fixedly arranged on the top surface of the buckle sealing plate 9. The buckle sealing plate 9 is fixedly provided with a matching block 10 on one side away from the main injection head 1;

[0022] See also Figure 2-5The bottom end of the inner side of the matching groove 5 is provided with a through hole 17, and the bottom end of the inner top block 13 is provided with a spring structure, and the top end of the inner top block 13 is provided with a butt joint at one end of the matching block 10. The inner side of the flip top groove 6 is symmetrically provided with an inner sleeve hole 14, and the main spray head 1 is provided with an end buckle sealing groove 15 at the end away from the mounting screw ring 2, and a side buckle ring 16 is fixedly provided on one side of the buckle sealing plate 9, and a through hole 17 is provided on the top surface of the matching block 10. The support shaft rod 18 and the side buckle ring 16 are buckled and arranged on the inner side of the end buckle sealing groove 15, the support shaft rod 18 is horizontally inserted and arranged on the side of the flip block 7 near the bottom end, and the two ends of the support shaft rod 18 are horizontally correspondingly inserted and arranged on the inner side of the inner sleeve hole 14, and the outer side of the support shaft rod 18 is fixedly sleeved with a support spring 19, and a middle groove 20 is horizontally opened on the top surface of the horizontal moving plate 11, and a fixing rod 21 is vertically inserted into the inner side of the middle groove 20, and a top spring 22 is horizontally clamped on the inner side of the middle groove 20, and the support springs 19 are fixedly clamped and arranged on the inner side of the inner sleeve hole 14 one by one, and the middle groove 20 is horizontally opened at the center line position of the top surface of the horizontal moving plate 11, and the fixing rod 21 is inserted and arranged inside the middle groove 20, and the two ends of the fixing rod 21 are fixedly arranged on the inner side wall of the top clamping groove 3, and one end of the top spring 22 is horizontally docked and arranged on one side of the fixing rod 21.

[0023] The working principle of the utility model is:

[0024] The main spray head 1 is docked and set at the end position of the installation pipe through the installation screw ring 2 at one end. After rotating the installation screw ring 2, the main spray head 1 is fixedly installed. After the installation is completed, hold the main spray head 1, and flip the buckle sealing plate 9 at one end upward, so that the top connecting rod 8 and the flip block 7 are flipped inside the flip top groove 6, and the buckle sealing plate 9 is flipped to the top surface position of the main spray head 1, so that the side matching block 10 is inserted into the inside of the matching groove 5, and under the support of the top spring 22, the horizontal moving plate 11 is squeezed and moved, so that the buckle block 12 at one end is horizontally plugged into the through hole. The inside of the through hole 17 is fixed, and then the main injection head 1 can be used to perform spray grouting outward. When no spraying is performed, the toggle block 4 on the top surface can be toggled to drive the horizontal moving plate 11 to move horizontally, so that the buckle block 12 at one end is away from the through hole 17, and the matching block 10 is pushed upward by the inner top block 13. At the same time, the flip block 7 and the connecting rod 8 are driven to flip under the support of the support spring 19, so that the buckle sealing plate 9 at one end is buckled and set at the open end of the main injection head 1, and the side buckle ring 16 on the side is buckled and set inside the end buckle sealing groove 15 to fix it to complete the sealing effect.

[0025] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A jet grouting anti-back-suction nozzle, comprising a main jet head (1), characterized in that: One end of the main injection head (1) is clamped with a mounting screw ring (2); a top clamping groove (3) is horizontally provided on the top surface of the main injection head (1); a toggle block (4) is inserted into the inner side of the top clamping groove (3); a matching groove (5) is provided on the top surface of the main injection head (1); a flip top groove (6) is provided on the top surface of the main injection head (1); a flip block (7) is inserted into the inner side of the flip top groove (6); a connecting rod (8) is horizontally arranged on the top surface of the main injection head (1); a buckle sealing plate (9) is butt-jointed at the end of the main injection head (1) away from the mounting screw ring (2); a matching block (10) is fixedly arranged on the side of the buckle sealing plate (9) away from the main injection head (1); a horizontal shift plate (11) is horizontally inserted into the inner side of the top clamping groove (3); one end of the horizontal shift plate (11) is horizontally fixed A snap block (12) is provided, the inner bottom end of the matching groove (5) is snapped with an inner top block (13), the inner side edge of the flip top groove (6) is symmetrically provided with inner sleeve holes (14), the main injection head (1) is provided with an end snap seal groove (15) at the end away from the mounting screw ring (2), a side snap ring (16) is fixedly provided on one side of the snap seal plate (9), a through hole (17) is provided on the top surface of the matching block (10), a support shaft rod (18) is horizontally inserted into the side edge of the flip block (7), a support spring (19) is fixedly sleeved on the outer side edge of the support shaft rod (18), a middle groove (20) is horizontally opened on the top surface of the horizontal shift plate (11), a fixing rod (21) is vertically inserted into the inner side edge of the middle groove (20), and a top spring (22) is horizontally snapped into the inner side edge of the middle groove (20).

2. A jet grouting anti-back-suction nozzle according to claim 1, characterized in that: The two ends of the main spray head (1) are open, and a side clamping ring of the mounting screw ring (2) is clamped and arranged at a groove position at an edge of an open end of the main spray head (1), the top clamping groove (3) is arranged at a position close to one end of the mounting screw ring (2), and the bottom end of the toggle block (4) is extended and fixedly connected to a position at one end of the top surface of the horizontal moving plate (11).

3. The jet grouting anti-back-suction nozzle according to claim 1, characterized in that: The flip top groove (6) is arranged at an end position away from the mounting screw ring (2), and the matching groove (5) is arranged between the flip top groove (6) and the top clamping groove (3). The top end of the flip block (7) extends through the top opening of the flip top groove (6) to the outer side, and the extended end is fixedly connected to one end position of the bottom surface of the connecting rod (8). The connecting rod (8) is arranged in an L-shape, and one end of the connecting rod (8) is fixedly arranged on the top surface of the buckled sealing plate (9).

4. The jet grouting anti-back-suction nozzle according to claim 1, characterized in that: One end of the horizontal moving plate (11) extends horizontally to the inner side of the matching groove (5), the buckle block (12) is horizontally correspondingly inserted and arranged on the inner side of the through hole (17), the bottom end of the inner top block (13) is inserted and arranged at the inner bottom end groove position of the matching groove (5), and the insertion bottom end of the inner top block (13) is arranged on the spring structure, and the top end of the inner top block (13) is butt-jointed and arranged on one end of the matching block (10).

5. The jet grouting anti-back-suction nozzle according to claim 1, characterized in that: The side buckle ring (16) is buckled and arranged on the inner side edge of the end buckle sealing groove (15), the support shaft rod (18) is horizontally inserted and arranged on the side edge of the flip block (7) near the bottom end, and the two ends of the support shaft rod (18) are horizontally correspondingly inserted and arranged on the inner side edge of the inner sleeve hole (14).

6. The jet grouting anti-back-suction nozzle according to claim 1, characterized in that: The support springs (19) are fixedly connected and connected to the inner side of the inner sleeve hole (14) in a one-to-one correspondence. The middle groove (20) is horizontally penetrated and opened at the center line of the top surface of the horizontal moving plate (11). The fixing rod (21) is inserted and connected inside the middle groove (20). The two ends of the fixing rod (21) are fixedly connected to the inner side wall of the top clamping groove (3). One end of the top spring (22) is horizontally connected and connected to one side of the fixing rod (21).

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