Engineering cleaning nozzle

Abstract

The utility model discloses an engineering cleaning sprayer, relates to the technical field of sprayers, and solves the technical problems that the flow pressure control and the water spraying area of a device are inconvenient to simultaneously and stably control, and the device is not suitable for cleaning a shield tail of a shield tunneling machine, so that the cleaning efficiency is low. The shower nozzle comprises a pipe body and a shower nozzle body, one end of the pipe body is connected with the shower nozzle body, a first adjusting ring is rotationally arranged on the pipe body, a water cavity is formed in the pipe body and communicated with the shower nozzle body, an inner core is arranged in the water cavity, an inner ring of the first adjusting ring is in threaded connection with the upper end of the inner core, and an outer ring of the first adjusting ring is in threaded connection with the lower end of the inner core. The water pressure is adjusted by adjusting the area of a water passage of the water cavity through the inner core, a second adjusting ring is rotationally arranged on the side face of the spray head, the spraying area is adjusted by rotating the second adjusting ring, and the spray head has the advantages that flow pressure and the water spraying area can be conveniently and stably controlled at the same time, and the use mode is flexible.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray heads, and particularly relates to an engineering cleaning spray head. Background Art

[0002] A cleaning spray head generally refers to a component that can spray liquid. After being connected to a water source, it can wash the object to be cleaned and is widely used in engineering construction. With the continuous development of the shield tunneling technology field, the development and application technology of underground space are becoming more and more mature. A series of multi-functional roads, railways, cross-river, and cross-sea tunnels have been put into construction. The tail shield of a shield machine is an important part of the shield machine. It is located at the tail of the shield machine and is connected to the shield shell of the shield machine. The main function of the tail shield is to ensure that during the tunneling process of the shield machine, an effective seal is formed between the tail of the shield machine and the already installed tunnel segments, preventing substances such as muddy water and sandy soil from leaking into the tunnel, thereby ensuring construction safety and engineering quality. During the tunneling process of the tunnel, it is inevitable that the tail shield will accumulate muck. Dry muck needs to be manually cleaned, which is time-consuming and laborious.

[0003] In the existing patent CN105537016A, it discloses a spray head for bearing cleaning with adjustable flow rate, including an inner sleeve and an outer sleeve. The inner sleeve and the outer sleeve are cylindrical with one end open. The inner sleeve is embedded in the outer sleeve. A screw rod is provided at the bottom surface of the inner sleeve facing the center position of the outer sleeve. A screw hole for screwing the screw rod is provided at the center position of the bottom surface of the outer sleeve. Liquid inlet holes are provided on the bottom surface of the outer sleeve at the outer periphery of the screw hole. The end of the side surface of the outer sleeve is provided with a curved surface part that bends towards the end of the side surface of the inner sleeve. In this device, when the inner sleeve rotates relative to the outer sleeve, the flow rate can be changed.

[0004] During the cleaning process of the tail shield, it is necessary to use high pressure to wash the dry muck and use large-area water spraying to achieve rapid cleaning. However, in the existing device, it is not convenient to stably control the flow rate pressure and the water spraying area at the same time, and it is not suitable for cleaning different areas of the tail shield with different muck degrees, resulting in low cleaning efficiency. Summary of the Utility Model

[0005] The utility model provides an engineering cleaning spray head, aiming to solve the technical problem that in the existing device, it is not convenient to stably control the flow rate pressure and the water spraying area at the same time, and it is not suitable for cleaning the tail shield of a shield machine, resulting in low cleaning efficiency.

[0006] To solve the above existing technical problems, the technical solution adopted by the present utility model is as follows:

[0007] An engineering cleaning nozzle comprises a tube body and a nozzle, one end of the tube body is connected to the nozzle, a first adjusting ring is rotatably provided on the tube body, a water cavity is provided inside the tube body, the water cavity is communicated with the nozzle, an inner core is provided in the water cavity, the inner ring of the first adjusting ring is threadedly connected to the upper end of the inner core, the water pressure is adjusted by adjusting the water passage area of ​​the water cavity through the inner core, a second adjusting ring is rotatably provided on the side of the nozzle, and the spraying area is adjusted by rotating the second adjusting ring.

[0008] The utility model sets a first adjusting ring. Since the upper end of the inner core is threadedly connected to the inner wall of the first adjusting ring, when the first adjusting ring is rotated, the inner core will also move up or down, cooperating with the shape of the inner core and the water cavity, that is, the movement of the inner core causes the gap between the inner core and the water cavity to change, so that the cross-sectional area where the water flows through the inner core and the water cavity changes, thereby achieving the effect of regulating the water flow pressure. By setting a second adjusting ring, when the second adjusting ring is rotated, the second adjusting ring will adjust the water outlet of the nozzle, and different cleaning modes can be adjusted according to different cleaning conditions. Through the cooperation of the first adjusting ring and the second adjusting ring, stable adjustment and control of the water pressure and the water spraying area can be achieved to meet the cleaning needs under different conditions.

[0009] Preferably, the tube body is divided into a first tube body and a second tube body, the first adjusting ring is rotatably connected between the first tube body and the second tube body, a first water cavity is provided in the first tube body, a second water cavity is provided in the second tube body, the first water cavity is communicated with the second water cavity, the first water cavity is in a truncated cone shape, the upper end of the first water cavity has a small diameter, the inner core is movably arranged in the first water cavity and the second water cavity, the lower end of the inner core is in a conical shape, the upper part of the lower end of the inner core has a large diameter, the upper end of the inner core has a diameter greater than the diameter of the second water cavity, and the nozzle is connected to the second tube body.

[0010] After adopting this technical solution, it should be noted that the utility model sets the first water cavity into a truncated cone shape, and the diameter of the upper end of the first water cavity is small near the nozzle, and the diameter of the first water cavity gradually increases from top to bottom, and sets the lower end of the inner core into a cone shape, and the diameter gradually decreases from top to bottom, and the upper end diameter of this truncated cone is larger than the diameter of the second water cavity, and the upper end diameter of the first water cavity is larger than the diameter of the second water cavity, that is, the lower end of the inner core is always located in the first water cavity, and when the lower end of the inner core is located at the upper end of the first water cavity, complete sealing will be achieved, and when the first adjusting ring is rotated to move the inner core downward, due to the gradually increasing distance between the side surface of the lower end of the inner core and the inner wall of the truncated cone of the first water cavity, that is, the cross-sectional area of ​​the water flow through the lower end of the inner core and the first water cavity gradually increases, that is, the water pressure will gradually decrease, and according to this characteristic, the first adjusting ring can be rotated to change the water pressure according to the actual cleaning situation to achieve a good cleaning effect.

[0011] Preferably, the inner core includes a conical head and a connecting pipe. The upper end of the conical head is connected to the connecting pipe. The outer wall of the connecting pipe is provided with a smooth portion and a threaded portion. The smooth portion is located at the upper end of the connecting pipe. Limiting blocks are symmetrically arranged on both sides of the smooth portion. Sliding grooves are symmetrically arranged on the inner wall of the second water chamber. The limiting blocks are slidably connected to the sliding grooves. The inner wall of the first adjusting ring is provided with threads. The threaded portion is threadedly connected to the inner wall of the first adjusting ring. At least one long hole is also opened in the connecting pipe.

[0012] After adopting this technical solution, it should be noted that by symmetrically arranging sliding grooves on the inner wall of the second water chamber and arranging limiting blocks at the upper end of the connecting pipe, the limiting blocks are slidably matched with the sliding grooves. Since there is also a left-right rotation limiting relationship between the limiting blocks and the sliding grooves, when the first adjusting ring is rotated, the threaded fit will smoothly drive the connecting pipe to move downward, so that the connecting pipe will not rotate following the first adjusting ring, resulting in the inability to generate a vertical displacement of the connecting pipe and the conical head; by arranging the smooth portion and cooperating with the limiting blocks, the threaded portion of the connecting pipe is always in cooperation with the threads of the first adjusting ring; by initially arranging long holes, water flows from the first water chamber through the long holes into the second water chamber, and then enters the nozzle to achieve subsequent cleaning. In addition, it should be noted that when water flows into the first water chamber, it will impact the conical head. Therefore, the conical design also reduces the resistance to water flow, reduces the vibration generated by the water flow in the first water chamber, and also makes it more convenient to adjust the downward movement of the conical head.

[0013] Preferably, annular connecting grooves are correspondingly arranged at the opposite ends of the first pipe body and the second pipe body. Both ends of the first adjusting ring are provided with first limiting rings. The first limiting rings at both ends are respectively rotatably connected to the connecting grooves on the first pipe body and the connecting grooves on the second pipe body.

[0014] After adopting this technical solution, it should be noted that the diameter of the first adjusting ring is larger than the diameters of the first pipe body and the second pipe body, which is convenient for rotation. In addition, it should be noted that the first limiting ring is perpendicular to the first adjusting ring, and a sliding ring is vertically arranged at the upper end of the first adjusting ring perpendicular to the first adjusting ring, so that the cross-section of the first adjusting ring is in the shape of a "dry" character, and the sliding ring further limits the first pipe body and the second pipe body.

[0015] Preferably, a first water outlet pipe is arranged along the axis inside the nozzle. The first water outlet pipe is communicated with the second water chamber. A first water outlet hole is arranged at the end of the first water outlet pipe. A plurality of second water outlet pipes are annularly arranged along the center of the nozzle. The second water outlet pipes are in an L shape. The second water outlet pipes are respectively communicated with the second water chamber and the first water outlet pipe. Second water outlet holes are arranged at the ends of the second water outlet pipes.

[0016] After adopting this technical solution, it should be noted that the first water outlet hole and the second water outlet hole are funnel-shaped. When water flows out from the first water outlet hole and the second water outlet hole, there is a diffusion effect. In addition, when the second adjusting ring is rotated, the second adjusting ring will close the second water outlet pipe. At this time, the water flows only through the first water outlet pipe and is sprayed out from the first water outlet hole. At this time, the pressure of the water flow reaches the maximum, which is suitable for flushing dry debris. If a large area of ​​flushing is required, the second adjusting ring can be rotated to make the water flow spray out from the second water outlet hole and the first water outlet hole at the same time, so as to achieve the effect of flushing a large area. In addition, it should be noted that each second water outlet hole is separately connected to a second water outlet pipe, and each second water outlet pipe will be connected to the first water outlet pipe and the second water cavity respectively.

[0017] Preferably, each of the second water outlets is provided with a drainage block inside, and at least one straight tube and two inclined tubes are penetrated through the drainage block. The two inclined tubes are respectively located on both sides of the drainage block, and the inclination directions of the two inclined tubes are opposite.

[0018] After adopting this technical solution, it should be noted that by setting a drainage block and setting straight pipes and inclined pipes on the drainage block, the water flow is diffused when passing through the drainage block, and a large-area spraying is achieved. When flushing a large area of ​​non-dry debris, such as muddy water, a rapid and large-area cleaning effect can be achieved, thereby improving efficiency.

[0019] Preferably, an annular rotation groove is opened on the side of the nozzle, and the rotation groove vertically penetrates the second water outlet pipe and extends toward the center of the nozzle. A limiting groove perpendicular to the rotation groove is provided on the inner side of the rotation groove, and the second adjustment ring is rotatably connected to the rotation and the limiting groove.

[0020] After adopting this technical solution, it should be noted that the second adjustment ring is rotatably connected by setting a rotation groove, and the second adjustment ring is limited by setting a limiting groove perpendicular to the rotation groove, providing a basis for the subsequent second adjustment ring to adjust the water spray area.

[0021] Preferably, the second adjusting ring is provided with a plurality of through holes at positions corresponding to the second water outlet pipe, the diameter of the through holes is smaller than the diameter of the second water outlet pipe, and the second adjusting ring is provided with a second limiting ring, which is rotatably matched with the limiting groove.

[0022] After adopting this technical solution, it should be noted that the diameter of the second adjustment ring is larger than the diameter of the nozzle, so that the adjustment ring is easy to rotate. By setting the through holes, the number of through holes corresponds to the number of second water outlet pipes. When the second adjustment ring is rotated, the through holes can overlap or be misaligned with the inner diameter of the second water outlet pipe. When the through holes are completely misaligned and the second water outlet pipe is closed, the water output and pressure of the second water outlet hole can be adjusted in the process from the overlap of the through holes and the second water outlet pipe to the complete overlap.

[0023] Preferably, a handle is connected to the first tube body and the second tube body, and two ends of the handle are respectively connected to the side walls of the first tube body and the second tube body.

[0024] After adopting this technical solution, it should be noted that the handle is fixedly connected to the first tube body and the second tube body. In addition to providing a gripping position during the cleaning process, the handle can also fix the first tube body and the second tube body to prevent the first tube body and the second tube body from rotating when the first adjustment ring is rotated. In addition, in order to increase the stability of holding during the cleaning process, when holding the device, the operator can pass the hand through the handle and hold it on the first tube body and the second tube body, thereby reducing the impact caused by the recoil when spraying water and improving the holding stability.

[0025] Preferably, a connecting piece is fixedly connected between the first tube body and the second tube body, the connecting piece is U-shaped, and the connecting piece spans over the first adjustment ring.

[0026] After adopting this technical solution, it should be noted that the function of this connecting piece is also to fix the first tube body and the second tube body to prevent the first tube body and the second tube body from rotating when the first adjustment ring is rotated.

[0027] Preferably, anti-slip strips are provided on the outer walls of the first adjustment ring and the second adjustment ring to prevent the device from falling due to hand slipping during the flushing process.

[0028] The use steps of the utility model are as follows: firstly, the device is connected to an external water supply pipe, and the water supply pipe is connected to the first water chamber. The operator holds the handle, and before supplying water, the first adjusting ring can be turned clockwise with the thumb of the holding hand to generate rotation, until the rotation generates resistance, which means that the conical head is in contact with the upper side wall of the first water chamber. At this time, the first water chamber and the second water chamber are in a separated state. At this time, water supply can be started, and the water flow will flow into the first water chamber. At this time, the first adjusting ring starts to be rotated counterclockwise, and the first adjusting ring will drive the connecting pipe to move downward, thereby driving the conical head to move downward. In the process of the conical head moving downward, the side wall of the conical head and the frustum of the first water chamber are in contact. The distance between the side walls of the first and second water outlet pipes gradually increases, which means that the water flow pressure will gradually decrease. The effect of adjusting the water pressure can be achieved by rotating the first adjusting ring. At this time, the water flows into the second water cavity through the long hole on the connecting pipe, and then enters the first water outlet pipe and the second water outlet pipe. At this time, the other hand can rotate the second adjusting ring, and the through hole on the second adjusting ring and the second water outlet pipe overlap or are relatively staggered. When they are completely staggered, the second water outlet pipe is closed, and the water flows out from the first water outlet hole. The pressure at this time is the largest. In the process from the overlap of the through hole and the second water outlet pipe to the complete overlap, the water output and pressure of the second water outlet hole can be adjusted.

[0029] In another method of using the utility model, the operator can pass his hand through the handle and hold it on the first tube body and the second tube body. Different from the above-mentioned method of only holding the handle, this method increases the stability of the operator's holding and reduces the impact caused by the recoil when spraying water. In this way of holding, the first adjustment ring can also be turned by the thumb, and the second adjustment ring can be adjusted by the other hand to achieve stable synchronous water pressure and adjustment of the spraying area.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0031] The utility model provides an engineering cleaning nozzle, which sets the first water cavity into a truncated cone shape, and the diameter of the upper end of the first water cavity near the nozzle is small, the diameter of the first water cavity gradually increases from top to bottom, and the lower end of the inner core is set to be conical, and the diameter gradually decreases from top to bottom. When the lower end of the inner core is located at the upper end of the first water cavity, complete sealing will be achieved. When the first adjusting ring is rotated to move the inner core downward, the distance between the side surface of the lower end of the inner core and the inner wall of the first water cavity gradually increases, that is, the cross-sectional area of ​​the water flow passing through the lower end of the inner core and the first water cavity gradually increases, that is, the water pressure will gradually decrease. According to this characteristic, the first adjusting ring can be rotated according to the actual cleaning situation to change the water pressure, so as to achieve a good cleaning effect.

[0032] The utility model provides an engineering cleaning nozzle, which is provided with a threaded portion on a connecting pipe, a thread is provided on the inner side of a first adjusting ring, a slide groove is symmetrically provided on the inner wall of a second water chamber, and a limit block is provided on the upper end of the connecting pipe, so that the limit block and the slide groove are slidably matched, and the movement of the connecting pipe is realized by cooperating with the threaded connection between the connecting pipe and the first adjusting ring.

[0033] The utility model provides an engineering cleaning nozzle, which provides a drainage block, and provides a straight pipe and an inclined pipe on the drainage block, so that water flows diffusely when passing through the drainage block, thereby realizing large-area spraying. When a large area of ​​non-dry debris, such as muddy water, is washed, a rapid and large-area cleaning effect can be achieved, thereby improving efficiency.

[0034] The utility model provides an engineering cleaning nozzle, which has a through hole arranged on the second adjusting ring, and the through hole can overlap or be misaligned with the inner diameter of the second water outlet pipe. When the through hole is completely misaligned and the second water outlet pipe is closed, the water output and pressure of the second water outlet hole can be adjusted in the process from the overlap of the through hole and the second water outlet pipe to the complete overlap.

[0035] The utility model provides an engineering cleaning nozzle, which is provided with a handle, both ends of which are respectively connected to a first tube body and a second tube body. The handle can be held by an operator, and the first tube body and the second tube body are connected, so as to prevent the first tube body and the second tube body from rotating when the first adjustment ring is rotated, and also increase the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] This utility model will be described by way of examples and with reference to the accompanying drawings, where:

[0037] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0038] Figure 2 is a sectional view taken along the A-A direction of this utility model;

[0039] Figure 3 is a partially enlarged schematic view at position Ⅰ of this utility model;

[0040] Figure 4 is a schematic diagram of the inner core structure of this utility model;

[0041] Figure 5 is a schematic diagram of the first connecting ring structure of this utility model;

[0042] Figure 6 is a schematic diagram of the first pipe body structure of this utility model;

[0043] Figure 7 is a schematic diagram of the second connecting ring structure of this utility model.

[0044] Reference numerals:

[0045] 1 - First pipe body, 101 - First water cavity, 102 - Connecting groove, 2 - Second pipe body, 201 - Second water cavity, 202 - Slide groove, 3 - First adjusting ring, 301 - First limiting ring, 302 - Thread, 4 - Sprinkler head, 401 - First water outlet hole, 402 - First water outlet pipe, 403 - Drainage block, 4031 - Inclined pipe, 4032 - Straight pipe, 404 - Second water outlet pipe, 5 - Second adjusting ring, 501 - Through hole, 502 - Second limiting ring, 6 - Handle, 7 - Connecting piece, 8 - Inner core, 801 - Tapered head, 802 - Connecting pipe, 8021 - Smooth part, 8022 - Threaded part, 803 - Long hole, 804 - Limiting block. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Usually, the components of the embodiments of this application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is required to be protected, but only represents the selected embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0047] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the practical product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0048] The following Figures 1-7 will make a detailed description of the present utility model.

[0049] An engineering cleaning nozzle, as Figure 1 , Figure 2 shown, an engineering cleaning nozzle 4 includes a pipe body and a nozzle 4. One end of the pipe body is connected to the nozzle 4. A first adjusting ring 3 is rotatably arranged on the pipe body. A water cavity is arranged inside the pipe body. The water cavity is communicated with the nozzle 4. An inner core 8 is arranged in the water cavity. The inner ring of the first adjusting ring 3 is threadedly connected to the upper end of the inner core 8. The water passage area of the water cavity is adjusted by the inner core 8 to adjust the water pressure. A second adjusting ring 5 is rotatably arranged on the side of the nozzle 4. Rotating the second adjusting ring 5 adjusts the spraying area.

[0050] As Figure 2 shown, the pipe body is divided into a first pipe body 1 and a second pipe body 2. The first adjusting ring 3 is rotatably connected between the first pipe body 1 and the second pipe body 2. A first water cavity 101 is arranged in the first pipe body 1. A second water cavity 201 is arranged in the second pipe body 2. The first water cavity 101 is communicated with the second water cavity 201. The first water cavity 101 is frustum-shaped, with a smaller diameter at the upper end. The inner core 8 is movably arranged in the first water cavity 101 and the second water cavity 201. The lower end of the inner core 8 is conical, with a larger diameter at the upper part of the lower end. The diameter of the upper end of the inner core 8 is larger than the diameter of the second water cavity 201. The nozzle 4 is connected to the second pipe body 2.

[0051] As Figure 2 , Figure 4As shown, the inner core 8 includes a conical head 801 and a connecting pipe 802. The upper end of the conical head 801 is connected to the connecting pipe 802. On the outer wall of the connecting pipe 802, there are a smooth portion 8021 and a threaded portion 8022. The smooth portion 8021 is located at the upper end of the connecting pipe 802. On both sides of the smooth portion 8021, there are symmetrically arranged limiting blocks 804. On the inner wall of the second water chamber 201, there are symmetrically arranged sliding grooves 202. The limiting blocks 804 are slidably connected to the sliding grooves 202. On the inner wall of the first adjusting ring 3, there is a thread 302. The threaded portion 8022 is threadedly connected to the thread 302 on the inner wall of the first adjusting ring 3. At least one long hole 803 is also formed on the connecting pipe 802.

[0052] As Figure 5 、 Figure 6 shown, at the opposite ends of the first pipe body 1 and the second pipe body 2, there are correspondingly arranged annular connecting grooves 102. At both ends of the first adjusting ring 3, there are first limiting rings 301. The first limiting rings 301 at both ends are respectively rotatably connected to the connecting groove 102 on the first pipe body 1 and the connecting groove 102 on the second pipe body 2.

[0053] As Figure 2 shown, inside the nozzle 4, there is a first water outlet pipe 402 arranged along the axis. The first water outlet pipe 402 is communicated with the second water chamber 201. At the end of the first water outlet pipe 402, there is a first water outlet hole 401. Inside the nozzle 4, there are a number of second water outlet pipes 404 arranged annularly along the center. The second water outlet pipes 404 are in an L shape. The second water outlet pipes 404 are respectively communicated with the second water chamber 201 and the first water outlet pipe 402. At the end of the second water outlet pipe 404, there is a second water outlet hole 405.

[0054] As Figure 2 、 Figure 3 shown, inside each second water outlet hole 405, there is a diversion block 403. Through the diversion block 403, there are at least one straight pipe 4032 and two inclined pipes 4031. The two inclined pipes 4031 are respectively located on both sides of the diversion block 403, and the inclination directions of the two inclined pipes 4031 are opposite.

[0055] As Figure 2 shown, on the side surface of the nozzle 4, there is an annular rotation groove. The rotation groove vertically penetrates the second water outlet pipe 404 and extends towards the center of the nozzle 4. Inside the rotation groove, there is a limiting groove perpendicular to the rotation groove. The second adjusting ring 5 is rotatably connected to the rotation groove and the limiting groove.

[0056] As Figure 7As shown, a plurality of through holes 501 are provided on the second adjusting ring 5 at positions corresponding to the second water outlet pipe 404, the diameter of the through holes 501 is smaller than the diameter of the second water outlet pipe 404, and a second limiting ring 502 is provided on the second adjusting ring 5, and the second limiting ring 502 is rotatably matched with the limiting groove.

[0057] like Figure 1 As shown, a handle 6 is connected to the first tube body 1 and the second tube body 2 , and two ends of the handle 6 are connected to the side walls of the first tube body 1 and the second tube body 2 respectively.

[0058] like Figure 1 , Figure 2 As shown, a connecting piece 7 is fixedly connected between the first tube body 1 and the second tube body 2 . The connecting piece 7 is U-shaped and spans over the first adjustment ring 3 .

[0059] like Figure 1 , Figure 2 As shown, the first adjustment ring 3 and the second adjustment ring 5 are provided with anti-slip strips on their outer walls to prevent the device from falling due to hand slipping during the flushing process.

[0060] The use steps of the utility model are as follows: first, the device is connected to an external water supply pipe, and the water supply pipe is connected to the first water chamber 101. The operator holds the handle 6, and before supplying water, the first adjusting ring 3 can be turned clockwise with the thumb of the holding hand to rotate until the rotation generates resistance, which means that the conical head 801 is in contact with the upper side wall of the first water chamber 101. At this time, the first water chamber 101 and the second water chamber 201 are in a separated state. At this time, water supply can be started, and the water flow will flow into the first water chamber 101. At this time, the first adjusting ring 3 is turned counterclockwise, and the first adjusting ring 3 will drive the connecting pipe 802 to move downward, thereby driving the conical head 801 to move downward. During the downward movement of the conical head 801, the side wall of the conical head 801 and the circular wall of the first water chamber 101 are in contact. The distance between the side walls of the platform gradually increases, which means that the water flow pressure will gradually decrease. The effect of adjusting the water pressure can be achieved by rotating the first adjusting ring 3. At this time, the water flows into the second water cavity 201 through the long hole 803 on the connecting pipe 802, and then enters the first water outlet pipe 402 and the second water outlet pipe 404. At this time, the other hand can rotate the second adjusting ring 5, and the through hole 501 on the second adjusting ring 5 and the second water outlet pipe 404 overlap or are relatively staggered. When they are completely staggered, the second water outlet pipe 404 is closed, and the water flows out from the first water outlet hole 401. The pressure at this time is the maximum. From the overlap of the through hole 501 and the second water outlet pipe 404 to the complete overlap, the water output and pressure of the second water outlet can be adjusted.

[0061] In another usage method of the present utility model, the operator can pass his / her hand through the handle 6 and grip the first tube body 1 and the second tube body 2. Different from only gripping the handle 6 as described above, this method increases the stability of the operator's grip and reduces the impact caused by the recoil force during water spraying. During the grip in this method, the first adjustment ring 3 can also be toggled with the thumb, and the second adjustment ring 5 can be adjusted with the other hand to achieve stable synchronous adjustment of the water pressure and the water spraying area.

[0062] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An engineering cleaning nozzle, characterized in that: The invention comprises a tube body and a nozzle (4), one end of the tube body being connected to the nozzle (4), a first adjusting ring (3) being rotatably provided on the tube body, a water cavity being provided inside the tube body, the water cavity being communicated with the nozzle (4), an inner core (8) being provided inside the water cavity, the inner ring of the first adjusting ring (3) being threadedly connected to the upper end of the inner core (8), the water pressure being adjusted by adjusting the water passage area of ​​the water cavity through the inner core (8), and a second adjusting ring (5) being rotatably provided on the side of the nozzle (4), the spraying area being adjusted by rotating the second adjusting ring (5).

2. The engineering cleaning nozzle according to claim 1, characterized in that: The tube body comprises a first tube body (1) and a second tube body (2); the first adjusting ring (3) is rotatably connected between the first tube body (1) and the second tube body (2); a first water cavity (101) is provided in the first tube body (1); a second water cavity (201) is provided in the second tube body (2); the first water cavity (101) is communicated with the second water cavity (201); the first water cavity (101) is in a truncated cone shape; the upper end of the first water cavity (101) has a small diameter; the inner core (8) is movably arranged in the first water cavity (101) and the second water cavity (201); the lower end of the inner core (8) is in a conical shape; the upper part of the lower end of the inner core (8) has a large diameter; the upper end of the inner core (8) has a larger diameter than the diameter of the second water cavity (201); and the nozzle (4) is connected to the second tube body (2).

3. The engineering cleaning nozzle according to claim 2, characterized in that: The inner core (8) comprises a conical head (801) and a connecting tube (802); the upper end of the conical head (801) is connected to the connecting tube (802); a smooth portion (8021) and a threaded portion (8022) are provided on the outer wall of the connecting tube (802); the smooth portion (8021) is located at the upper end of the connecting tube (802); limit blocks (804) are symmetrically provided on both sides of the smooth portion (8021); sliding grooves (202) are symmetrically provided on the inner wall of the second water cavity (201); the limit blocks (804) are slidably connected to the sliding grooves (202); the inner wall of the first adjusting ring (3) is provided with threads (302); the threaded portion (8022) is threadedly connected to the inner wall of the first adjusting ring (3); and at least one long hole (803) is also provided on the connecting tube (802).

4. The engineering cleaning nozzle according to claim 2, characterized in that: An annular connecting groove (102) is correspondingly provided at one end of the first tube body (1) opposite to the second tube body (2), and first limiting rings (301) are provided at both ends of the first adjustment ring (3), and the first limiting rings (301) at both ends are rotatably connected to the connecting groove (102) on the first tube body (1) and the connecting groove (102) on the second tube body (2), respectively.

5. The engineering cleaning nozzle according to claim 2, characterized in that: A first water outlet pipe (402) is provided inside the nozzle (4) along the axis, the first water outlet pipe (402) is connected to the second water cavity (201), a first water outlet hole (401) is provided at the end of the first water outlet pipe (402), a plurality of second water outlet pipes (404) are provided in a circular shape along the center of a circle inside the nozzle (4), the second water outlet pipes (404) are L-shaped, the second water outlet pipes (404) are respectively connected to the second water cavity (201) and the first water outlet pipe (402), and a second water outlet hole (405) is provided at the end of the second water outlet pipe (404).

6. The engineering cleaning nozzle according to claim 5, characterized in that: A drainage block (403) is provided inside each of the second water outlet holes (405), and at least one straight tube (4032) and two inclined tubes (4031) are provided through the drainage block (403), and the two inclined tubes (4031) are respectively located on two sides of the drainage block (403), and the inclination directions of the two inclined tubes (4031) are opposite.

7. The engineering cleaning nozzle according to claim 5, characterized in that: The side of the nozzle (4) is provided with an annular rotation groove, the rotation groove vertically penetrates the second water outlet pipe (404) and extends towards the center of the nozzle (4), the inner side of the rotation groove is provided with a limit groove perpendicular to the rotation groove, and the second adjustment ring (5) is rotationally connected to the rotation and the limit groove.

8. The engineering cleaning nozzle according to claim 7, characterized in that: A plurality of through holes (501) are provided on the second adjustment ring (5) at positions corresponding to the second water outlet pipe (404); the diameter of the through holes (501) is smaller than the diameter of the second water outlet pipe (404); and a second limiting ring (502) is provided on the second adjustment ring (5); the second limiting ring (502) is rotatably matched with the limiting groove.

9. An engineering cleaning nozzle according to any one of claims 2 to 8, characterized in that: The first tube body (1) and the second tube body (2) are connected with a handle (6), and both ends of the handle (6) are respectively connected to the side walls of the first tube body (1) and the second tube body (2).

10. An engineering cleaning nozzle according to any one of claims 2 to 8, characterized in that: A connecting piece (7) is fixedly connected between the first tube body (1) and the second tube body (2); the connecting piece (7) is U-shaped and spans over the first adjustment ring (3).

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