CN215329431U

CN215329431U - Hydraulic breaking spray head with backward spray holes

Info

Publication number: CN215329431U
Application number: CN202121730949.9U
Authority: CN
Inventors: 王鹏翔; 秦奇; 黄为; 邹自良; 江源; 蒋维; 陈璐
Original assignee: Sichuan Southwest Jiaotong University Railway Development Co ltd
Current assignee: Sichuan Southwest Jiaotong University Railway Development Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-28
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a hydraulic breaking sprayer with backward spray holes, which comprises a water inlet part at the rear end and a water spray part at the front end, wherein a water inlet hole is formed in the water inlet part, a plurality of first water spray holes are formed in the front end surface of the water spray part, and a plurality of second water spray holes inclining upwards and third water spray holes inclining backwards are formed in the outer side wall of the water spray part. According to the hydraulic breaking sprayer provided by the utility model, the two third water spraying holes which are inclined backwards are symmetrically arranged on the outer side wall of the water spraying part, so that on one hand, the sprayer is struck by water jet backwards, the residual concrete can be broken from different angles, the probability of searching for concrete gaps or weak points is increased, the breaking effect is better, and the breaking is more thorough; on the other hand, the backward water spray holes can flush out the slag, so as to achieve the effect of actively discharging slag; in addition, the high-pressure water jet ejected backwards forms a vacuum negative pressure belt in the opposite direction of the jet, the vacuum negative pressure belt can suck out accumulated water and stone slag and keep away from the nozzle area, and the breaking efficiency is improved.

Description

Hydraulic breaking spray head with backward spray holes

Technical Field

The utility model relates to the field of hydraulic breaking operation, in particular to a hydraulic breaking sprayer with backward spray holes.

Background

At present, most of concrete local cleaning and dismantling modes of highways, bridges and the like depend on manpower, work is carried out by means of air picks, blasting hammers, diamond circular saws and the like, but reinforcing steel bars are damaged in the construction process, the invisible damage of the main body structure of a concrete building is caused, and the engineering life of the main body structure is greatly shortened; and can produce more severe noise and dust pollution. Therefore, a safer, more efficient and environment-friendly concrete surface base cleaning and dismantling technology is needed.

The high-pressure water jet technology is a technology for breaking a target object by using huge energy transmitted by high-pressure water jet, and has the advantages of no dust generation, high working efficiency, no damage to reinforcing bars, no crack propagation to the original structure and the like when concrete is broken, and the high-pressure water jet technology is applied to road and bridge repair.

The Chinese patent with the application number of CN201921333531.7 discloses a nozzle for hydraulic breaking, wherein in the using process, high-pressure water enters a water inlet through a water supply mechanism, the high-pressure water entering the water inlet is sprayed out at high pressure through a water spraying hole, and the high-pressure water sprayed out from the water spraying hole breaks concrete; because the water under high pressure carries out the crushing in-process to the concrete, the broken concrete disintegrating slag that produces can produce backward reaction force when receiving the water under high pressure breakage, thereby it is downthehole to arrange the sediment through the hole for water spraying backward to make the concrete disintegrating slag that produces, and finally discharge from arranging the sediment hole, thereby make downthehole concrete disintegrating slag automatic discharge, prevent effectively that the disintegrating slag from blockking up the hole, it is better to the crushing effect of concrete to make the shower nozzle, the efficiency of removing is improved, the progress that makes whole construction is accelerated greatly.

However, the above patent has the defects of force eccentricity, large energy loss of water jet and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a hydraulic demolition nozzle having backward spray holes, so that the concrete demolition effect of the nozzle is better and demolition efficiency is improved.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a water conservancy abolishes shower nozzle with backward orifice, includes the portion of intaking of rear end and the water spray portion of front end, be provided with the inlet opening in the portion of intaking, the preceding terminal surface of water spray portion is provided with a plurality of first hole for water spraying, is provided with a plurality of ascending second hole for water spraying and the backward third hole for water spraying of slope on the lateral wall, first hole for water spraying, second hole for water spraying and third hole for water spraying all with the inlet opening intercommunication.

Furthermore, two first water spray holes are formed in the front end face of the water spray part, and the two first water spray holes and the water inlet hole are Y-shaped.

Furthermore, the end face of the outlet end of the first water spray hole is in an inclined plane shape, and the included angle between the central axis of the first water spray hole and the central axis of the water inlet hole is 155-170 degrees.

Furthermore, two second water spraying holes inclining upwards are symmetrically arranged on the outer side wall of the water spraying part.

Further, the included angle between the central axis of the second water spray hole and the central axis of the water inlet hole is 80-89 degrees.

Furthermore, two third water spraying holes which are inclined backwards are symmetrically arranged on the outer side wall of the water spraying part, and the third water spraying holes are located behind the second water spraying holes.

Further, the included angle between the central axis of the third water spray hole and the central axis of the water inlet hole is 40-50 degrees.

Furthermore, the plane formed by the central axes of the two first water spray holes and the plane formed by the central axes of the two second water spray holes are vertical to each other and are the same as the plane formed by the central axes of the two third water spray holes.

Further, the shower nozzle is the ladder cylindric, and the external diameter of portion of intaking is less than the external diameter of water-spraying portion, the symmetry is provided with the straight face on the lateral wall of water-spraying portion rear end.

Furthermore, the outer wall of the water inlet part is provided with external threads, and the inner walls of the outlet ends of the first water spray hole, the second water spray hole and the third water spray hole are provided with internal threads.

The utility model has the beneficial effects that:

according to the hydraulic breaking sprayer provided by the utility model, the two Y-shaped first water spraying holes are formed in the front end surface of the water spraying part so as to break forward concrete conveniently, a certain breaking range is increased, an effective space is provided for the forward movement of a gun rod, the transverse recoil is counteracted mutually, and the gun rod is kept not to be eccentric when rotating.

According to the hydraulic breaking sprayer provided by the utility model, the two second water spraying holes inclined upwards are symmetrically arranged on the outer side wall of the water spraying part, so that lateral concrete can be broken conveniently, the breaking range is increased, a certain slag discharging impact effect is provided, and the rotation of a gun rod is kept not to be eccentric.

According to the hydraulic breaking sprayer provided by the utility model, the two third water spraying holes which are inclined backwards are symmetrically arranged on the outer side wall of the water spraying part, so that on one hand, the sprayer is struck by water jet backwards, the residual concrete can be broken from different angles, the probability of searching for concrete gaps or weak points is increased, the breaking effect is better, and the breaking is more thorough; on the other hand, the backward water spray holes can flush out the slag, so as to achieve the effect of actively discharging slag; in addition, the high-pressure water jet ejected backwards forms a vacuum negative pressure belt in the opposite direction of the jet, the vacuum negative pressure belt can suck out accumulated water and stone slag and keep away from the nozzle area, and the breaking efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a cross-sectional view from another perspective of the present invention;

in the figure: 01. a water inlet part; 011. a water inlet hole; 02. a water spraying part; 021. a first water spray hole; 022. a second water jet hole; 023. a third water jet hole; 024. straight surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A hydraulic breaking nozzle with backward spray holes is disclosed, as shown in fig. 1-4, comprising a water inlet part 01 at the rear end and a water spray part 02 at the front end, wherein a water inlet hole 011 is arranged in the water inlet part 01, a plurality of first water spray holes 021 are arranged on the front end surface of the water spray part 02, a plurality of second water spray holes 022 inclining upwards and third water spray holes 023 inclining backwards are arranged on the outer side wall, and the first water spray holes 021, the second water spray holes 022 and the third water spray holes 023 are all communicated with the water inlet hole 011.

In this embodiment, the inner diameter of the water inlet 011 is larger than the inner diameter of the water spray holes, the water inlet 011 is connected to a water supply mechanism for high pressure water, and the high pressure water enters the nozzle through the water inlet 011 and is sprayed out from the first water spray hole 021, the second water spray hole 022 and the third water spray hole 023 of the nozzle to crush the concrete. All be provided with a plurality of hole for water sprayings on the preceding terminal surface and the lateral wall at water spray portion 02, can break the concrete from different angles, increase the probability of looking for concrete gap or weak point, make to break the effect better, break more thoroughly.

The third hole 023 is set in this embodiment, and is considered based on the following three points:

1. the high-pressure water jet breaks concrete mainly by means of water jet to find gaps or weak points of the concrete, the forward first water jet hole has certain residues after the gun rod moves forward, if the gun rod is struck by the water jet backwards, the residual concrete can be broken from different angles, the probability of finding the gaps or the weak points of the concrete is increased, the breaking effect is better, and the concrete is broken more thoroughly.

2. A large amount of concrete residues are remained in the holes in the breaking process, particularly after deep breaking, the residues are accumulated too much and are not beneficial to the movement of a follow-up gun rod, and backward spray holes can flush out the broken slag to achieve the effect of actively discharging the slag.

3. When the gun rod penetrates into the inside of the breaking hole, particularly after a closed space is formed, concrete lacks a free surface and cannot be stripped efficiently, the concrete is broken by the striking force of high-pressure water jet, and a large amount of water with certain pressure is extremely easy to accumulate in the closed space in the state. The water is filled in the space to form certain resistance to the high-pressure water sprayed by the spray head, the hitting power of the high-pressure water is greatly reduced, meanwhile, besides water is accumulated in the space, a large amount of concrete grains are also accumulated in the space, the grains cannot flow out of the space along with the vortex effect, and the hitting power is greatly weakened after the grains block the water jet, so that the breaking efficiency is linearly reduced. And the backward high-pressure water jet forms a vacuum negative pressure belt in the opposite direction of the jet. The negative pressure can suck out the accumulated water and the stone slag, and the accumulated water and the stone slag are far away from the nozzle area, so that the breaking efficiency is improved.

As an optimized scheme of this embodiment, as shown in fig. 1 and 3, the front end face of the water spraying part 02 is provided with two first water spraying holes 021, and the two first water spraying holes 021 and the water inlet 011 are Y-shaped, so as to break the forward concrete, increase a certain breaking range, provide an effective space for the forward movement of the lance, simultaneously offset the transverse recoil each other, and keep the lance not eccentric when rotating.

The included angle between the central axis of the first water spray hole 021 and the central axis of the water inlet hole 011 is 155-170 degrees. Because the contained angle is bigger, abolish the dynamics and be big more, speed is faster, but the aperture is less, is unfavorable for row's sediment. Experiments prove that the effect is best when the included angle is 165 degrees.

As a preferred embodiment, as shown in fig. 1, 2 and 4, two second water jet holes 022 inclined upward are symmetrically disposed on the outer sidewall of the water jet part 02, so as to break lateral concrete, increase the breaking range, provide a certain slag discharging impact effect, and keep the rotation of the lance rod from eccentricity.

The included angle between the central axis of the second water spray hole 022 and the central axis of the water inlet hole 011 is 80-89 degrees. The larger the angle, the better the breaking effect, but the larger the energy loss, and the certain slag removing effect must be considered at the same time. Experiments prove that the effect is best when the included angle is 85 degrees.

As a preferred embodiment, as shown in fig. 1, 2 and 3, two third water jet holes 023 inclined backwards are symmetrically arranged on the outer side wall of the water jet part 02, and the third water jet holes 023 are positioned behind the second water jet holes 022. On one hand, the nozzle is struck by water jet backwards, so that the residual concrete can be broken from different angles, and the probability of searching for concrete gaps or weak points is increased; on the other hand, the backward water spray holes can flush out the slag, so as to achieve the effect of actively discharging slag; in addition, the high-pressure water jet ejected backwards forms a vacuum negative pressure belt in the opposite direction of the jet, the vacuum negative pressure belt can suck out accumulated water and stone slag and keep away from the nozzle area, and the breaking efficiency is improved.

The angle between the central axis of the third water spray hole 023 and the central axis of the water inlet hole 011 is 40-50 degrees. Since the smaller the angle, the better the slag flushing effect toward the rear side, but the greater the water energy loss. Experiments prove that the effect is best when the included angle is 45 degrees.

As an optimized solution of the present embodiment, as shown in fig. 3 and 4, the plane formed by the central axes of the two first water holes 021 and the plane formed by the central axes of the two second water holes 022 are perpendicular to each other and are coplanar with the plane formed by the central axes of the two third water holes 023, so that the mechanical processing is facilitated, the porous layout is performed in the minimum space, and the recoil of the water jet can be effectively equalized.

As an optimized solution of this embodiment, as shown in fig. 1-4, the nozzle is in a stepped cylindrical shape, and the nozzle is set to be cylindrical, so as to reduce the frictional resistance generated by the rotation of the nozzle during the operation; the external diameter of the water inlet part 01 is smaller than that of the water spray part 02, so that when the water inlet part 01 is installed, the water spray part 02 on the ladder limits the installation of the water inlet part 01. Straight surfaces 024 are symmetrically arranged on the outer side wall of the rear end of the water injection part 02, so that the straight surfaces 024 can be clamped by using a mounting tool, and the spray head is rotated to be mounted or dismounted.

As an optimized scheme of the embodiment, the outer wall of the water inlet part 01 is provided with an external thread so as to be detachably mounted on the water supply mechanism; first hole for water spraying 021, second hole for water spraying 022 and third hole for water spraying 023 exit end inner wall all are provided with the internal thread, can install detachable jam screw on the internal thread, and the hole for water spraying that need not use is sealed according to actual demand, remains the hole for water spraying that needs to use.

In this embodiment, the two first water holes 021, the two second water holes 022, and the two third water holes 023 are in a rice shape with the water inlet 011.

For a better understanding of the present invention, the following is a complete description of the working principle of the present invention:

when the concrete needs to be broken, the spray head is fixed on the water supply mechanism, then the drive mechanism drives the spray head to rotate, and the spray head rotates and gradually advances while spraying water.

In the using process, high-pressure water enters the water inlet hole 011 through the water supply mechanism, the high-pressure water entering the water inlet hole 011 is sprayed out at high pressure through the first water spraying hole 021, the second water spraying hole 022 and the third water spraying hole 023, the sprayed high-pressure water breaks concrete, and the driving mechanism drives the spray head to rotate and advance simultaneously when the high-pressure water breaks.

When the concrete is broken, high-pressure water sprayed from the two first water spraying holes 021 in the Y shape breaks concrete in the front and front direction, so that an effective space is provided for the gun rod to move forward, and meanwhile, the two first water spraying holes 021 counteract the transverse recoil mutually, so that the gun rod is not eccentric when rotating.

The high-pressure water sprayed by the two second water spraying holes 022 which are symmetrically arranged and inclined upwards breaks lateral concrete, so that the breaking range is increased, a certain slag discharging impact effect is provided, and the rotation of a gun rod is kept not to be eccentric.

The high pressure water sprayed from the two third water spray holes 023 which are symmetrically arranged and inclined backwards breaks away the residual concrete from a backward angle, and simultaneously sucks out the water and the ballast accumulated at the front end and flushes out the ballast.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a shower nozzle is abolished to water conservancy with backward orifice, its characterized in that, including the water-jet portion (02) of the portion of intaking (01) and front end of rear end, be provided with inlet opening (011) in the portion of intaking (01), the preceding terminal surface of water-jet portion (02) is provided with a plurality of first hole for water sprayings (021), is provided with a plurality of ascending second hole for water sprayings (022) of slope and slope third hole for water sprayings (023) backward on the lateral wall, first hole for water sprayings (021), second hole for water sprayings (022) and third hole for water sprayings (023) all with inlet opening (011) intercommunication.

2. The hydraulic breaking sprinkler head according to claim 1, characterized in that the front end face of the water spraying portion (02) is provided with two first water spraying holes (021), and the two first water spraying holes (021) and the water inlet hole (011) are Y-shaped.

3. The hydraulic breaking sprinkler according to claim 2, characterized in that the end of the outlet end of the first water hole (021) is inclined, and the angle between the central axis of the first water hole (021) and the central axis of the water inlet hole (011) is 155 ° -170 °.

4. The hydraulic breaking sprinkler according to claim 2, characterized in that the outer side wall of the water jet part (02) is symmetrically provided with two second water jet holes (022) inclined upwards.

5. The hydraulic breaking sprinkler according to claim 4, characterized in that the angle between the central axis of the second water jet hole (022) and the central axis of the water inlet hole (011) is 80 ° -89 °.

6. The hydraulic breaking sprinkler head according to claim 4, characterized in that two third water jet holes (023) are symmetrically arranged on the outer side wall of the water jet part (02) and are inclined backwards, and the third water jet holes (023) are positioned behind the second water jet holes (022).

7. The hydraulic destruction nozzle of claim 6, wherein the angle between the central axis of the third water jet hole (023) and the central axis of the water inlet hole (011) is 40 ° to 50 °.

8. The hydraulic fracturing nozzle of claim 6, wherein the two first orifices (021) have their central axes perpendicular to the two second orifices (022) and coplanar with the central axes of the two third orifices (023).

9. The hydraulic breaking nozzle as claimed in claim 1, characterized in that the nozzle is in a stepped cylinder shape, the outer diameter of the water inlet part (01) is smaller than that of the water spray part (02), and straight surfaces (024) are symmetrically arranged on the outer side wall of the rear end of the water spray part (02).

10. The hydraulic breaking sprinkler according to claim 1, wherein the outer wall of the water inlet portion (01) is provided with external threads, and the inner walls of the outlet ends of the first (021), the second (022) and the third (023) water spray holes are provided with internal threads.