CN210022616U - Concrete sprayer for die spraying - Google Patents
Concrete sprayer for die spraying Download PDFInfo
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- CN210022616U CN210022616U CN201821956182.XU CN201821956182U CN210022616U CN 210022616 U CN210022616 U CN 210022616U CN 201821956182 U CN201821956182 U CN 201821956182U CN 210022616 U CN210022616 U CN 210022616U
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Abstract
The utility model belongs to the mould field of spouting discloses a mould spouts uses concrete shower nozzle, including the shower nozzle body, be equipped with the shower nozzle import and the shower nozzle export of intercommunication on the shower nozzle body, the shower nozzle export is the platykurtic, the opening width in shower nozzle export cross-section is greater than the opening height, makes the concrete after the shower nozzle export blowout to opening width direction diffusion. The spray head is a divergent spray head, so that concrete is sprayed out from the spray head and then is diffused towards the width direction of the opening, and the concrete can be diffused along the width direction of the mold cavity in the mold cavity, so that the mold cavity and the corners of the mold cavity are fully, quickly and uniformly filled with the concrete.
Description
Technical Field
The utility model relates to a mould spouts the field, refers in particular to a mould spouts uses concrete shower nozzle.
Background
In the process of tunnel excavation construction, after the excavated rock wall is reinforced and supported, construction can be carried out in the tunnel or the next section of tunnel is excavated; otherwise, the tunnel rock wall can cause tunnel collapse due to loosening, water and soil loss, weathering and the like.
In the prior art, the rock wall is generally supported in the primary support mode by directly spraying concrete on the rock wall through a spray head. The mode of directly spraying concrete by using the spray head can cause a large amount of concrete materials to rebound and waste materials, and the pollution is serious.
Thus, as shown in fig. 1, concrete is sprayed by means of a die-spraying method, which comprises providing a cavity in the rock wall and then spraying concrete into the cavity through a nozzle from an opening at the upper end of the cavity. When the mold cavity is filled with concrete, a supporting layer is formed on the rock wall after the mold cavity is removed after the concrete is solidified; this kind of mode can effectually avoid the material to kick-back and reduce air pollution.
However, the outlet end and the inlet end of the existing spray head are both cylindrical, so that the concrete sprayed in the mold cavity is in the shape of a strand of strip, as shown in fig. 2; the concrete is sprayed out in a strip shape, and the concrete in the die cavity is unevenly distributed due to low fluidity of the concrete, so that the concrete cannot be fully and uniformly filled at the corners of the die cavity, the shape of a concrete supporting layer after condensation is irregular, and the force bearing effect is influenced. And the vibration device and the stirring device cannot be additionally arranged on the die cavity on the rock wall to ensure that the concrete is uniformly distributed in the die cavity.
Disclosure of Invention
The utility model aims to provide a: to the problems, the concrete sprayer for the mold spraying is a divergent sprayer, so that the concrete is sprayed out from a sprayer outlet and then is diffused towards the width direction of an opening, the concrete can be diffused in the width direction of the mold cavity in the mold cavity, and the mold cavity and the corners of the mold cavity are fully, quickly and uniformly filled with the concrete.
The utility model adopts the technical scheme as follows:
the utility model provides a mould spouts uses concrete sprayer, includes the shower nozzle body, be equipped with the shower nozzle import and the shower nozzle export of intercommunication on the shower nozzle body, its characterized in that: the nozzle outlet is flat, and the opening width of the nozzle outlet section is larger than the opening height, so that concrete is sprayed out from the nozzle outlet and then is diffused towards the opening width direction.
Due to the structure, the opening width of the cross section of the outlet of the spray head is larger than the opening height, so that the material is sprayed out from the outlet of the spray head and then is diffused towards the width direction; therefore, when the spray head is applied to the cavity injection on the tunnel, the concrete can be dispersed in the cavity and distributed to the two sides of the cavity as far as possible; the problem that the shape and the force bearing effect of the concrete support layer are affected due to uneven distribution of concrete in the die cavity caused by the fact that all materials are concentrated in the middle of the die cavity is avoided; the utility model discloses a mould spouts uses concrete shower nozzle, can make the concrete abundant, quick, even edge department that fills up die cavity and die cavity.
Furthermore, the opening width of the cross section of the outlet of the spray head is larger than that of the cross section of the inlet of the spray head; the height of the opening of the cross section of the outlet of the spray head is less than that of the opening of the cross section of the inlet of the spray head.
Furthermore, the spray head inlet is positioned at the front end of the spray head body, and the spray head outlet is positioned at the rear end of the spray head body; the width of the spray head body is gradually increased and the height of the spray head body is gradually reduced from the front end to the rear end; or the spray head inlet is positioned at the front end of the spray head body, and the spray head outlet is positioned at the rear end of the spray head body; the shower nozzle import and the shower nozzle export are through the cavity intercommunication in the shower nozzle body, the shower nozzle body is from front end to rear end, and its width crescent, the height reduces gradually, and its interior cavity width also crescent, and interior cavity height also reduces gradually.
Furthermore, the cross section of the nozzle inlet is circular, and the cross section of the nozzle outlet is elliptical, rectangular or elongated.
Further, the spray head body comprises a connecting section and a flat spray nozzle; wherein the shower nozzle import is located the front end of linkage segment, and the shower nozzle export is located the rear end of nozzle, and linkage segment rear end links to each other with the nozzle front end, linkage segment and nozzle integrated into one piece or detachable connection.
Further, the width and the height of the connecting section are gradually reduced from the front end to the rear end; the width of the nozzle is gradually increased and the height of the nozzle is gradually reduced from the front end to the rear end; or from the front end to the rear end, the width and the height of the connecting section are gradually reduced, and the width and the height of a cavity in the connecting section, which is communicated with the front end and the rear end of the connecting section, are also gradually reduced; from the front end to the rear end, the width of the nozzle is gradually increased, the height of the nozzle is gradually reduced, the width of a cavity which is arranged in the nozzle and connected with the front end and the rear end of the nozzle is gradually increased, and the height of the cavity is also gradually reduced.
Due to the structure, the caliber of the cavity in the connecting section is gradually reduced, the flow speed of the material in the connecting section can be gradually increased, and the spraying force of the material is further ensured.
Furthermore, a guide plate is arranged at the outlet of the spray head and used for changing the spraying direction of the concrete sprayed out of the outlet of the spray head.
Due to the structure, the material can be more accurately sprayed at a specific position through the guide plate, and the material is prevented from being diffused towards an unnecessary direction.
Furthermore, one side of the guide plate is in butt joint with one side of the nozzle outlet, so that the radian of the plate surface of the guide plate is consistent with the radian of the butt joint edge of the nozzle outlet.
Due to the structure, the radian of the butt joint edge of the surface of the guide plate and the spray head outlet is consistent, so that the guide plate can be smoothly arranged at the spray head outlet, and the phenomenon that the spray head outlet is stepped and blocked is avoided.
Furthermore, an included angle exists between the guide plate surface and the end face of the nozzle outlet, and the included angle ranges from 0 degree to 90 degrees.
Due to the structure, the spraying direction of the materials can be better changed by setting the included angle, so that the materials are sprayed to the designated position.
Furthermore, a separator is arranged in the nozzle outlet and divides the nozzle outlet into a plurality of independent spray holes.
Furthermore, the nozzle outlet is arranged at the inlet of a die cavity formed by the template and the tunnel rock wall, so that the concrete sprayed into the die cavity is diffused along the width direction of the die cavity after being sprayed out from the nozzle outlet.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the opening width of the cross section of the outlet of the spray head in the utility model is larger than the opening height, so the material is spread towards the width direction after being sprayed out from the outlet of the spray head; the concrete can be dispersed in the die cavity and distributed towards the two sides of the die cavity as far as possible, so that the die cavity and the corners of the die cavity are fully, quickly and uniformly filled with the concrete. The problem that the shape and the bearing effect of the concrete support layer are affected due to uneven distribution of concrete in the die cavity caused by the fact that materials are all concentrated in the middle of the die cavity in the width direction is avoided.
2. The bore of the inner cavity of the connecting section is reduced in sequence, so that the flow velocity of the material in the connecting section is gradually increased, and the spraying force of the material is further ensured.
3. Through the deflector can be more accurate make the material spray in specific position, avoid the material to spread towards the direction that does not need, avoid the material to strike the cliff in the die cavity that cliff and template formed, and lead to the fact the destruction to the cliff.
Drawings
FIG. 1 is a schematic view showing the positional relationship between a tunnel, a concrete supporting layer, and a mold cavity and a nozzle during construction;
FIG. 2 is a diagram of a material spraying path of a common nozzle;
FIG. 3 is a diagram of the material ejection path of the present invention;
FIG. 4 is a perspective view of the head in example 1;
FIG. 5 is a front view of the head in embodiment 1;
FIG. 6 is a left side view of the head in example 1;
FIG. 7 is a plan view of the head in example 1;
FIG. 8 is a perspective view of a head in embodiment 2;
FIG. 9 is a front view of the head in embodiment 2;
FIG. 10 is a left side view of the head in embodiment 2;
FIG. 11 is a plan view of the head in example 2;
FIG. 12 is a structural view of a head outlet in embodiment 3.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A concrete sprayer for die spraying comprises a sprayer body, wherein a sprayer inlet and a sprayer outlet 2-1 are formed in the sprayer body and communicated with each other, the sprayer outlet 2-1 is flat, the opening width of the section of the sprayer outlet 2-1 is larger than the opening height, and concrete is sprayed out from the sprayer outlet 2-1 and then spreads in the opening width direction.
The opening width and the opening height of the cross section of the nozzle inlet are equal; the opening width of the section of the nozzle outlet 2-1 is larger than that of the section of the nozzle inlet; the height of the opening of the cross section of the nozzle outlet 2-1 is less than that of the opening of the cross section of the nozzle inlet.
The spray head inlet is positioned at the front end of the spray head body, and the spray head outlet 2-1 is positioned at the rear end of the spray head body; the sprayer inlet and the sprayer outlet 2-1 are communicated through a cavity in the sprayer body, the width of the sprayer body is gradually increased and the height of the sprayer body is gradually reduced from the front end to the rear end, the width of the inner cavity of the sprayer body is also gradually increased, and the height of the inner cavity of the sprayer body is also gradually reduced.
The cross section of the nozzle inlet is circular, and the cross section of the nozzle outlet 2-1 is oval, rectangular or long-strip.
The spray head body comprises a connecting section 1 and a flat spray nozzle 2; the spray nozzle inlet is positioned at the front end of the connecting section 1, the spray nozzle outlet 2-1 is positioned at the rear end of the spray nozzle 2, the rear end of the connecting section 1 is connected with the front end of the spray nozzle 2, the shape and size of the outlet of the connecting section 1 are matched with the shape and size of the inlet of the spray nozzle 2, and the connecting section 1 and the spray nozzle 2 are integrally formed or detachably connected.
From the front end to the rear end, the width and the height of the connecting section 1 are gradually reduced, and the width and the height of a cavity in the connecting section 1, which is communicated with the front end and the rear end of the connecting section 1, are also gradually reduced; from the front end to the rear end, the width of the nozzle 2 is gradually increased, the height is gradually decreased, the width of a cavity in the nozzle 2, which is communicated with the front end and the rear end of the nozzle 2, is gradually increased, and the height of the cavity is gradually decreased.
The utility model discloses a concrete nozzle for mould spraying, because the opening width of shower nozzle export 2-1 cross-section is greater than the opening height, consequently the concrete spreads towards the width direction after 2-1 blowout from the shower nozzle export, consequently when this shower nozzle is applied to the die cavity spouting on the tunnel, can make the concrete disperse in the die cavity, distribute towards the both sides of die cavity as far as, make the concrete fill up die cavity and die cavity's edge fast, abundant, even; as shown in figure 3, the spray head avoids the situation that materials are all concentrated in the middle of the width direction of the die cavity, so that the shape and the force bearing effect of the concrete support layer are influenced due to uneven distribution of concrete in the die cavity. The nozzle can enable concrete to be rapidly filled in the die cavity and the corners of the die cavity.
Example 2
The present embodiment is substantially the same as embodiment 1, except that: the guide plate 2-2 is arranged at the nozzle outlet 2-1, and the guide plate 2-2 is used for changing the spraying direction of the concrete sprayed out from the nozzle outlet 2-1.
One side of the guide plate 2-2 is butted with one side of the spray nozzle outlet 2-1, so that the radian of the plate surface of the guide plate 2-2 is consistent with the radian of the butted side of the spray nozzle outlet 2-1.
An included angle is formed between the surface of the guide plate 2-2 and the outlet end face of the nozzle 2, and the included angle ranges from 60 degrees to 120 degrees; when in use, 60 degrees, 90 degrees or 120 degrees can be adopted.
As shown in fig. 1, since the tunnel is arched, a certain inclination angle exists between the mold cavity and the rock wall; therefore, when the common nozzle is adopted to spray in the mold cavity, concrete slurry can directly impact the rock wall; and when the exit is provided with the guide plate 2-2, the guide plate 2-2 is positioned above the exit in use, the gap is positioned below the exit, when the concrete is sprayed out of the exit, the concrete can impact the guide plate 2-2 and then rebound downwards, so that the phenomenon that the rock wall is damaged by washing due to overlarge impact pressure of the concrete is avoided, and the phenomenon that the concrete is too dispersed and then runs out of the upper end of the die cavity when the concrete is sprayed out is also avoided. The included angle between the guide plate 2-2 and the end face of the nozzle 2 is adjusted, namely, the angle of the inner buckle of the guide plate 2-2 towards the nozzle outlet 2-1 is adjusted, so that the concrete can be sprayed towards the designated direction better, and the impact on the rock wall is avoided.
Example 3
On the basis of embodiments 1 and 2, the present embodiment is substantially the same as embodiments 1 and 2, except that: and a separator 3 is arranged in the nozzle outlet, and the separator 3 separates the nozzle outlet into a plurality of independent spray holes 4. As shown in fig. 12, the partition 3 divides the nozzle outlet into a plurality of circular orifice jets 4.
Example 4
This embodiment is substantially the same as embodiments 1, 2 and 3, except that: and placing the nozzle outlet 2-1 at the inlet of a mold cavity formed by the template and the tunnel rock wall, so that the concrete sprayed into the mold cavity is diffused along the width direction of the mold cavity after being sprayed out through the nozzle outlet 2-1. The mold cavity can be quickly, fully and uniformly filled with concrete, and a primary support layer is formed on the rock wall; the width of the die cavity is equal to the width of the template, and the thickness of the die cavity is equal to the distance between the template and the rock wall.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. The utility model provides a mould spouts uses concrete nozzle, includes the shower nozzle body, be equipped with the shower nozzle import and the shower nozzle export (2-1) of intercommunication on the shower nozzle body, its characterized in that: the nozzle outlet (2-1) is flat, and the opening width of the section of the nozzle outlet (2-1) is larger than the opening height, so that concrete is sprayed out from the nozzle outlet (2-1) and then is diffused in the opening width direction.
2. The concrete sprayer for mold spraying according to claim 1, wherein: the opening width of the cross section of the spray nozzle outlet (2-1) is larger than that of the cross section of the spray nozzle inlet; the height of the opening of the cross section of the spray nozzle outlet (2-1) is less than that of the opening of the cross section of the spray nozzle inlet.
3. The concrete sprayer for mold spraying according to claim 2, wherein: the spray head inlet is positioned at the front end of the spray head body, and the spray head outlet (2-1) is positioned at the rear end of the spray head body; the width of the spray head body is gradually increased and the height of the spray head body is gradually reduced from the front end to the rear end;
or the spray head inlet is positioned at the front end of the spray head body, and the spray head outlet (2-1) is positioned at the rear end of the spray head body; the sprayer inlet and the sprayer outlet (2-1) are communicated through a cavity in the sprayer body, the width of the sprayer body is gradually increased and the height of the sprayer body is gradually reduced from the front end to the rear end, the width of the inner cavity of the sprayer body is also gradually increased and the height of the inner cavity of the sprayer body is also gradually reduced.
4. The concrete sprayer for mold spraying according to claim 2, wherein: the cross section of the nozzle inlet is circular, and the cross section of the nozzle outlet (2-1) is oval, rectangular or long-strip.
5. The concrete sprayer for mold spraying according to claim 2, wherein: the spray head body comprises a connecting section (1) and a flat spray nozzle (2); wherein the spray head inlet is positioned at the front end of the connecting section (1), the spray head outlet (2-1) is positioned at the rear end of the spray nozzle (2), the rear end of the connecting section (1) is connected with the front end of the spray nozzle (2), and the connecting section (1) and the spray nozzle (2) are integrally formed or can be detachably connected.
6. The concrete sprayer for mold spraying according to claim 5, wherein: the width and height of the connecting section (1) are gradually reduced from the front end to the rear end; the width of the nozzle (2) is gradually increased and the height thereof is gradually reduced from the front end to the rear end;
or from the front end to the rear end, the width and the height of the connecting section (1) are gradually reduced, and the width and the height of a cavity in the connecting section (1) for communicating the front end and the rear end of the connecting section (1) are also gradually reduced; from the front end to the rear end, the width of the nozzle (2) is gradually increased, the height of the nozzle is gradually reduced, the width of a cavity in the nozzle (2) which is communicated with the front end and the rear end of the nozzle (2) is gradually increased, and the height of the cavity is gradually reduced.
7. A concrete spray head for mould spraying according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: the concrete sprayer is characterized in that a guide plate (2-2) is arranged at the sprayer outlet (2-1), and the guide plate (2-2) is used for changing the spraying direction of the concrete sprayed out from the sprayer outlet (2-1).
8. The concrete sprayer for mold spraying according to claim 7, wherein: one side of the guide plate (2-2) is butted with one side of the spray head outlet (2-1), so that the radian of the plate surface of the guide plate (2-2) is consistent with the radian of the butted side of the spray head outlet (2-1).
9. The concrete sprayer for mold spraying according to claim 8, wherein: an included angle exists between the surface of the guide plate (2-2) and the outlet end face of the nozzle (2), and the included angle ranges from 60 degrees to 120 degrees.
10. The concrete sprayer for mold spraying according to claim 5, wherein: a separator (3) is arranged in the nozzle outlet, and the separator (3) separates the nozzle outlet into a plurality of independent spray holes (4).
11. A concrete sprayer for mold spraying according to claim 1, 2, 3, 4, 5, 6, 8 or 9, characterized in that: the nozzle outlet (2-1) is arranged at the inlet of a die cavity formed by the template and the tunnel rock wall, so that the concrete sprayed into the die cavity is sprayed out through the nozzle outlet (2-1) and then is diffused along the width direction of the die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821956182.XU CN210022616U (en) | 2018-11-26 | 2018-11-26 | Concrete sprayer for die spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821956182.XU CN210022616U (en) | 2018-11-26 | 2018-11-26 | Concrete sprayer for die spraying |
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| Publication Number | Publication Date |
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| CN210022616U true CN210022616U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821956182.XU Active CN210022616U (en) | 2018-11-26 | 2018-11-26 | Concrete sprayer for die spraying |
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| CN (1) | CN210022616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130582A (en) * | 2021-12-20 | 2022-03-04 | 济南万通铸造装备工程有限公司 | Spraying machine nozzle and spraying method |
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2018
- 2018-11-26 CN CN201821956182.XU patent/CN210022616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130582A (en) * | 2021-12-20 | 2022-03-04 | 济南万通铸造装备工程有限公司 | Spraying machine nozzle and spraying method |
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Effective date of registration: 20220114 Address after: No. 669, south section of Rongtai Avenue, Chengdu cross strait science and Technology Industrial Development Park, Wenjiang District, Chengdu, Sichuan 610030 Patentee after: SICHUAN BLUE OCEAN INTELLIGENT EQUIPMENT MANUFACTURING CO.,LTD. Address before: 643100 No. 2, floor 7, No. 92-3, North Street, Xuyang Town, Rong County, Zigong City, Sichuan Province Patentee before: Lan Chuanwen |