Telescopic spraying dust removal device

Abstract

The utility model provides a telescopic spray dust removal device. The telescopic spray dust removal device comprises an outer pipe, a spray head and a guide rod, the nozzle is slidably connected with the outer pipe, a compression spring is arranged between the nozzle and the outer pipe, and the compression spring enables the nozzle to generate a movement trend of moving towards the inside of the outer pipe; the guide rod is screwed with the outer pipe and extends into the spray head, and a water tank is arranged on the outer wall of the guide rod; and after the nozzle extends out of the outer pipe under the action of water pressure, the water tank moves out of the nozzle and enables the nozzle to be communicated with the outer pipe. Switching between the exposed state and the hidden state of the nozzle is controlled through water pressure, and the probability that dust adheres to the surface of the nozzle can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of dust suppression equipment, and in particular to a retractable spray dust removal device. Background Art

[0002] Dust is generated during underground coal mining operations. To minimize the impact of dust on the working environment and workers, spray dust suppression is often used. Atomizer nozzles are commonly used in coal mines. Existing atomizer nozzles are often exposed, which can easily cause dust to adhere to their surfaces. To address this issue, the inventors have proposed a retractable spray dust removal device. Utility Model Content

[0003] The present application provides a retractable spray dust removal device, which can use water pressure to control the switching of the nozzle's exposed and hidden states, thereby reducing the probability of dust adhering to the nozzle surface.

[0004] The technical solution of this application is as follows:

[0005] The present application provides a retractable spray dust removal device, which comprises: an outer tube, a spray head and a guide rod;

[0006] The nozzle is slidably connected to the outer tube, and a compression spring is provided between the nozzle and the outer tube, which causes the nozzle to move toward the inner side of the outer tube.

[0007] The guide rod is screwed together with the outer tube, the guide rod extends into the interior of the nozzle, and a water groove is provided on the outer wall of the guide rod;

[0008] Wherein, after the nozzle extends out of the outer tube under the action of water pressure, the water tank moves out of the nozzle and connects the nozzle with the outer tube.

[0009] By adopting the technical solution of the present application, the nozzle moves outward along the guide rod a set distance under the action of water pressure, and the water in the outer tube flows into the nozzle through the water tank and then sprays out. After the water pressure is lost, the nozzle retreats into the outer tube under the push of the compression spring, which can reduce the probability of dust adhering to the surface of the nozzle.

[0010] In some implementations, the inner wall of the outer tube is provided with a limiting groove that engages with the nozzle.

[0011] In some implementations, the limiting groove is parallel to the axis of the outer tube.

[0012] In some implementations, a retaining ring is screwed onto one end of the outer tube.

[0013] In some implementations, an outer wall of the nozzle is provided with an abutment ring that fits against the inner wall of the outer tube.

[0014] In some implementations, the abutting ring is provided with a limiting strip that engages with the limiting groove.

[0015] In some implementations, the compression spring is compressed between the retaining ring and the abutment ring.

[0016] In some implementations, the outer sleeve of the guide rod is provided with a connecting ring that is screwed with the outer tube.

[0017] In some implementations, a connecting plate is fixedly connected between the connecting ring and the guide rod.

[0018] In some implementations, the connecting plates are evenly distributed along the circumference of the connecting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of an explosion of a retractable spray dust removal device according to an embodiment of the present application;

[0021] Figure 2 is a cross-sectional view of a retractable spray dust removal device according to an embodiment of the present application;

[0022] Reference numerals:

[0023] 10. Outer tube; 11. Retaining ring; 12. Limiting groove;

[0024] 20. Nozzle; 21. Abutment ring; 22. Limiting strip; 23. Compression spring;

[0025] 30. Guide rod; 31. Water tank; 32. Connecting ring; 33. Connecting plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application clearer, the application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0027] In related technologies, dust is generated during underground coal mine production. To reduce the damage caused by dust to the working environment and workers, spray dust suppression is often used. Atomizing nozzles are commonly used in coal mines to suppress dust. Existing atomizing nozzles are mostly exposed, which easily causes dust to adhere to the nozzle surface.

[0028] This embodiment provides a retractable spray dust removal device, which can use water pressure to control the switching of the nozzle's exposed and hidden states, thereby reducing the probability of dust adhering to the nozzle surface.

[0029] See also Figure 1-Figure 2In this embodiment, a retractable spray dust removal device includes an outer tube 10, a nozzle 20 and a guide rod 30; wherein, the nozzle 20 is slidably connected to the outer tube 10, and a compression spring 23 is provided between the nozzle 20 and the outer tube 10, and the compression spring 23 causes the nozzle 20 to have a movement tendency to move toward the inside of the outer tube 10; the guide rod 30 is screwed with the outer tube 10, and the guide rod 30 extends into the inside of the nozzle 20, and the outer wall of the guide rod 30 is provided with a water groove 31; wherein, after the nozzle 20 extends out of the outer tube 10 under the action of water pressure, the water groove 31 moves out of the nozzle 20 and connects the nozzle 20 with the outer tube 10.

[0030] By adopting the technical solution of this embodiment, the nozzle 20 moves outward a set distance along the guide rod 30 under the action of water pressure, and the water in the outer tube 10 flows into the nozzle 20 through the water tank 31 and is then sprayed out. After the water pressure is lost, the nozzle 20 retreats into the outer tube 10 under the push of the compression spring 23, which can reduce the probability of dust adhering to the surface of the nozzle 20.

[0031] In this embodiment, the outer tube 10 is constructed as a circular tube with open ends. An annular retaining ring 11 is screwed into the interior of the upper end of the outer tube 10, and a limiting groove 12 is opened on the inner wall of the lower end of the outer tube 10. The extension direction of the limiting groove 12 is parallel to the axis of the outer tube 10. Two limiting grooves 12 are evenly distributed along the circumference of the outer tube 10. The lower end of the outer tube 10 is used to connect to the water supply pipeline, and the pressurized water in the water supply pipeline flows into the interior of the outer tube 10.

[0032] In this embodiment, the nozzle 20 is constructed into a hollow circular tube. The diameter of the inner cavity of the nozzle 20 is first reduced and then increased at its upper end, that is, the inner cavity of the nozzle 20 forms a constricted structure at its upper end for spraying water mist at the upper end. The outer diameter of the nozzle 20 is equal to the inner diameter of the retaining ring 11. An annular abutment ring 21 is integrally formed at the lower end of the nozzle 20. The outer diameter of the abutment ring 21 is greater than the outer diameter of the nozzle 20, and the outer diameter of the abutment ring 21 is equal to the inner diameter of the outer tube 10. A limit strip 22 is integrally formed on the outer wall of the outer tube 10, and the limit strip 22 is slidably engaged with the limit groove 12, thereby limiting the rotation of the nozzle 20 inside the outer tube 10, so that the nozzle 20 is only allowed to slide along the axis of the outer tube 10. The compression spring 23 is integrally sleeved on the outside of the nozzle 20, and the compression spring 23 is compressed between the retaining ring 11 and the abutment ring 21. The compression spring 23 generates a downward thrust on the abutment ring 21, so that the nozzle 20 has a movement tendency to retreat into the interior of the outer tube 10.

[0033] In this embodiment, the guide rod 30 is constructed as a solid round rod, and a connecting ring 32 is sleeved on the lower end of the guide rod 30. The connecting ring 32 is coaxially arranged with the guide rod 30, and a plurality of connecting plates 33 are fixedly connected between the connecting ring 32 and the guide rod 30. The plurality of connecting plates 33 are evenly distributed along the circumference of the connecting ring 32, and the connecting plates 33 are arranged along the radial direction of the connecting ring 32. The connecting ring 32 is screwed into the interior of the lower end of the outer tube 10. The outer diameter of the guide rod 30 is equal to the inner diameter of the nozzle 20. The guide rod 30 can be slidably inserted into the interior of the nozzle 20. A water groove 31 is provided on the outer wall of the guide rod 30. The water groove 31 extends as a whole along the axial direction of the guide rod 30 and passes through the top surface of the guide rod 30.

[0034] It should be noted that, in the initial state, the compression spring 23 pushes the nozzle 20 into the interior of the outer tube 10, and the nozzle 20 is in a hidden state; in the working state, pressurized water in the water supply pipe enters the interior of the outer tube 10, and the water pressure acts on the lower surface of the abutment ring 21. After pushing the nozzle 20 as a whole upward for a set distance, the water trough 31 moves out from the interior of the nozzle 20. At this time, the water trough 31 connects the inner cavity of the outer tube 10 below the abutment ring 21 with the inner cavity of the nozzle 20, and the water flows into the interior of the nozzle 20 through the water trough 31, and is finally sprayed out through the water outlet of the nozzle 20.

[0035] In this embodiment, the nozzle automatically switches between the hidden state and the exposed state under the control of water pressure. The nozzle can be lowered and hidden when not in operation, thereby reducing the probability of dust adhering to the surface of the nozzle.

[0036] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A retractable spray dust removal device, characterized in that: include: External control; a nozzle, the nozzle being slidably connected to the outer tube, a compression spring being provided between the nozzle and the outer tube, the compression spring causing the nozzle to move toward the interior of the outer tube; A guide rod, the guide rod being screwed together with the outer tube, the guide rod extending into the interior of the nozzle, and the outer wall of the guide rod being provided with a water groove; Wherein, after the nozzle extends out of the outer tube under the action of water pressure, the water tank moves out of the nozzle and connects the nozzle with the outer tube.

2. The retractable spray dust removal device according to claim 1, characterized in that: The inner wall of the outer tube is provided with a limiting groove which is clamped with the nozzle.

3. The retractable spray dust removal device according to claim 2, characterized in that: The limiting groove is parallel to the axis of the outer tube.

4. The retractable spray dust removal device according to claim 3, characterized in that: A retaining ring is screwed onto one end of the outer tube.

5. The retractable spray dust removal device according to claim 4, characterized in that: The outer wall of the nozzle is provided with an abutment ring which fits with the inner wall of the outer tube.

6. The retractable spray dust removal device according to claim 5, characterized in that: The abutting ring is provided with a limiting strip which is engaged with the limiting groove.

7. The retractable spray dust removal device according to claim 6, characterized in that: The compression spring is compressed between the retaining ring and the abutment ring.

8. The retractable spray dust removal device according to claim 7, characterized in that: The outer portion of the guide rod is sleeved with a connecting ring which is screwed together with the outer tube.

9. The retractable spray dust removal device according to claim 8, characterized in that: A connecting plate is fixedly connected between the connecting ring and the guide rod.

10. The retractable spray dust removal device according to claim 9, characterized in that: The connecting plates are evenly distributed along the circumference of the connecting ring.

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