CN212154785U

CN212154785U - Injection device for reducing rebound quantity of tunnel concrete

Info

Publication number: CN212154785U
Application number: CN202020404339.9U
Authority: CN
Inventors: 刘俊山
Original assignee: China Non Metallic Materials Mine Engineering Co ltd Nanjing
Current assignee: China Non Metallic Materials Mine Engineering Co ltd Nanjing
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-15
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a jet apparatus for reducing tunnel concrete rebound volume belongs to the technical field of tunnel construction, and the device comprises a machine body and a high-pressure nozzle connected on the machine body, wherein a limit sleeve and a horn sleeve which are sleeved inside and outside are arranged on the side wall of the high-pressure nozzle near the outlet end, the limit sleeve and the horn sleeve are coaxial, and a position-limiting part for limiting the aperture of the horn sleeve is arranged on the outer peripheral wall of the limit sleeve; when workers spray concrete on a construction surface by using the high-pressure spray head, the horn sleeve plays a role in blocking the rebounded concrete, so that the possibility of splashing the rebounded concrete is reduced, and the smoothness of a construction site is guaranteed; according to the construction requirements, workers can select high-pressure nozzles with different sizes to spray concrete, and the limiting pieces are utilized to facilitate the workers to adjust the horn sleeves to the proper size, so that the small resilience amount of the concrete is ensured; and is favorable for improving the adaptability of the device.

Description

Injection device for reducing rebound quantity of tunnel concrete

Technical Field

The utility model belongs to the technical field of the technique of tunnel construction and specifically relates to a spray device for reducing tunnel concrete rebound volume is related to.

Background

The sprayed concrete is a construction method for pouring fine stone concrete by spraying a pressure spray gun, and is commonly used for pouring protective layers of thin-wall structures such as tunnel linings and walls. The sprayed concrete is formed by filling cement, sand, stones, water and a certain amount of additives which are prepared in advance into a spraying machine, sending the mixture to a spray head by utilizing high-pressure air, mixing the mixture with an accelerating agent and spraying the mixture to the surface of the rock or the concrete at a high speed.

In the existing patent, a chinese utility model patent with an authorization publication number of CN208121571U discloses a concrete injection device for bridge construction, which comprises an outer frame, wherein the top of the outer frame is fixedly connected with a top frame, the top of the top frame is fixed with a first electric box, the top of the inner wall of the first electric box is fixed with a first motor, one end of the output shaft of the first motor sequentially penetrates through the first electric box and the top frame and extends to the inside of the top frame, one end of the output shaft of the first motor, which is positioned in the top frame, is fixedly connected with a moving device, the bottom of the right side of the outer frame is communicated with a hose, one end of the hose is communicated with a high-pressure nozzle, and the top and the bottom of the surface of the high-pressure nozzle are both movably connected with the; the utility model discloses a through the stirring to the concrete reach the purpose of avoiding the device to block up, utilize mobilizable high-pressure shower nozzle to carry out the concrete injection, simple and convenient to the construction face.

The above prior art solutions have the following drawbacks: when the high-pressure sprayer is used for spraying concrete, the sprayed concrete is high in speed, and after the concrete collides with a construction surface, the rebounding phenomenon can occur, so that the rebounding concrete splashes around to influence the cleanliness of a construction site.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a injection apparatus for reducing tunnel concrete resilience volume, the advantage prevents that the concrete from kick-backing, has solved the concrete destruction job site clean degree's of kick-backing problem.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an injection apparatus for reducing tunnel concrete rebound volume, includes the fuselage and connects the high pressure nozzle on the fuselage, be close to spacing sleeve and the loudspeaker sleeve that the exit end cup jointed inside and outside being equipped with on the lateral wall of high pressure nozzle, spacing sleeve and loudspeaker sleeve are coaxial, be equipped with the locating part that is used for injecing loudspeaker sleeve aperture size on spacing telescopic's the periphery wall.

By adopting the technical scheme, when workers spray concrete on a construction surface by using the high-pressure spray head, part of the concrete can rebound, the rebounded concrete is blocked by using the horn sleeve, the possibility of splashing the rebounded concrete is reduced, and the smoothness of the construction site is ensured; because there is the inconsistent condition in the roughness of construction face, the scope that leads to the concrete to kick-back is not uniform in size, or because of the size of high pressure nozzle is not uniform, the scope of kick-back of concrete also can be distinguished, through the locating part, makes things convenient for the workman to adjust the loudspeaker sleeve to suitable size, and the rebound volume of further guaranteeing the concrete injection is little, makes the device possess good suitability.

The utility model discloses further set up to: the locating part includes a plurality of supports, and is a plurality of the support is along spacing telescopic circumference evenly distributed, the support includes dead lever and movable rod, the inside cavity of movable rod, be equipped with the perforation of rectangular shape along its length direction on the lateral wall of movable rod, the one end of dead lever is fixed on spacing telescopic periphery wall, the other end and the movable rod of dead lever slide and be connected, be equipped with the screw hole relative with the perforation on the lateral wall of dead lever, utilize the bolt to pass perforation and dead lever threaded connection.

Through adopting above-mentioned technical scheme, when the workman adjusted the length of support according to the roughness of construction face or the size of a dimension of high pressure nozzle, through the cooperation of sliding of movable rod and dead lever, make things convenient for the workman to adjust the support to suitable length to fix the movable rod on the dead lever through the bolt, simple structure, firm in connection.

The utility model discloses further set up to: the side wall of the fixed rod is provided with a plurality of elastic bulges along the length direction, and the inner side wall of the movable rod is provided with a groove matched with the elastic bulges along the length direction.

Through adopting above-mentioned technical scheme, though the workman can adjust the support to suitable length according to the experience, nevertheless in order to further guarantee that the length that all supports were adjusted is unanimous, the workman may need some time when adjusting, through the cooperation of elastic bulge and recess, makes things convenient for the workman to adjust a plurality of supports to same length fast to labour saving and time saving when making the workman adjust support length.

The utility model discloses further set up to: the movable rod is provided with a sliding groove on two inner side walls adjacent to the through hole, and the fixed rod is provided with a convex edge matched with the sliding groove in a sliding manner on two side walls adjacent to the threaded hole.

Through adopting above-mentioned technical scheme, because the size of support is less, stability when adjusting support length in order to guarantee the workman through the cooperation of spout and slide rail, plays the effect of stabilizing the direction to the process of sliding of movable rod.

The utility model discloses further set up to: the utility model discloses a loudspeaker support, including the support, be equipped with the telescopic movable rod of loudspeaker, be equipped with the pull ring on the lateral wall of movable rod, be equipped with solid fixed ring on the telescopic inner wall of loudspeaker, gu be equipped with the elasticity rope on the fixed ring, the one end that solid fixed ring was kept away from to the elasticity rope is connected with the couple with pull ring matched with, the inner wall that the one end of loudspeaker sleeve is close to the support is through two-sided.

By adopting the technical scheme, after the bracket is adjusted to a proper length by a worker, the horn sleeve is wrapped on the outer peripheral wall of the high-pressure spray head around the bracket, so that the top end of the bracket is tightly abutted against the inner wall of the horn sleeve, and the horn sleeve is stably connected with the bracket through the matching of the hook and the pull ring; utilize two-sided magic to paste, fix the loudspeaker sleeve on spacing sleeve, make the loudspeaker sleeve can not drop easily to guarantee the stability that loudspeaker sleeve and high pressure nozzle are connected.

The utility model discloses further set up to: the limiting sleeve comprises an installation sleeve and a flexible sleeve, the support is arranged on the outer peripheral wall of the installation sleeve, and the flexible sleeve is closely inserted into the outer peripheral wall of the high-pressure nozzle.

By adopting the technical scheme, when a worker installs the limiting sleeve on the outer peripheral wall of the high-pressure nozzle, the flexible sleeve moves along the length direction of the high-pressure nozzle, and when the flexible sleeve is tightly inserted with the outer wall of the high-pressure nozzle, the limiting sleeve is fixed on the outer peripheral wall of the high-pressure nozzle; and the flexible sleeve is utilized, so that the experience is good when a worker holds the high-pressure spray nozzle for construction.

The utility model discloses further set up to: the flexible sleeve is trumpet-shaped, and the aperture of the end, close to the mounting sleeve, of the flexible sleeve is smaller than the aperture of the end, far away from the mounting sleeve, of the flexible sleeve.

Through adopting above-mentioned technical scheme, when the workman changed not unidimensional high pressure nozzle according to the construction requirement, through flexible sleeve, make things convenient for the workman to fix spacing sleeve on high pressure nozzle's outer wall fast.

The utility model discloses further set up to: and a flexible ring is arranged on the inner side wall of the mounting sleeve along the circumferential direction of the inner side wall, and the flexible ring is inserted into the outer wall of the high-pressure nozzle.

Through adopting above-mentioned technical scheme, in order to further guarantee the stability of stop sleeve and high pressure nozzle outer wall connection, utilize flexible ring, make installation sleeve and not unidimensional high pressure nozzle adaptation more to guarantee the stability of stop sleeve and high pressure nozzle outer wall connection.

To sum up, the utility model discloses a beneficial technological effect does:

1. the rebound quantity is small: when the high-pressure nozzle is used for spraying concrete, the rebounded concrete cannot splash around under the blocking action of the horn sleeve, so that the rebounding amount of the concrete is reduced, and the completeness of a construction site is guaranteed; through the limiting piece, a worker can conveniently adjust the horn sleeve to a proper size according to the flatness of the construction surface or the size of the high-pressure spray head, and the small rebound quantity of the sprayed concrete is further ensured;

2. the adaptability is good: the movable rod is matched with the fixed rod in a sliding mode, so that a worker can conveniently adjust the support to a proper length, and the size of the horn sleeve is adjusted along with the adjustment of the length of the support, so that the adaptability of the device is improved; through the matching of the flexible sleeve and the flexible ring, workers can conveniently fix the limiting sleeve and the high-pressure spray heads with different sizes, and the adaptability is good;

3. the installation is convenient: after the support is adjusted to a proper length by a worker, the horn sleeve is stably connected with the support through the matching of the pull ring and the hook, and the horn sleeve is tightly adhered to the outer peripheral wall of the limiting sleeve through the double-sided magic tape; when the workman need install spacing sleeve on the periphery wall of spray tube, inwards slide flexible sleeve, make flexible sleeve and high pressure nozzle's periphery wall zonulae occludens to labour saving and time saving when making the workman install spacing sleeve.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the limiting element in the present embodiment.

Fig. 3 is a schematic structural diagram for showing the connection relationship between the limiting sleeve, the bracket and the high-pressure nozzle in the embodiment.

In the figure, 1, a fuselage; 10. a base; 11. a container; 12. a power source; 2. a high pressure spray head; 21. a nozzle; 22. a nozzle; 3. a limiting sleeve; 31. installing a sleeve; 311. a flexible ring; 32. a flexible sleeve; 4. a horn sleeve; 5. a limiting member; 6. a support; 61. fixing the rod; 611. a threaded hole; 612. an elastic bulge; 613. a rib; 62. a movable rod; 621. perforating; 622. a groove; 623. a chute; 7. a bolt; 8. a pull ring; 9. hooking; 13. a fixing ring; 14. an elastic cord; 15. double-sided magic tape.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a spray device for reducing tunnel concrete rebound volume, the advantage is that the rebound volume of concrete is reduced, guarantee the clean and tidy degree in construction place, the device includes fuselage 1 and high pressure nozzle 2, fuselage 1 includes base 10, a power supply 12 that is used for holding container 11 of concrete and drive high pressure nozzle 2 and carries out the injection, high pressure nozzle 2 includes nozzle 21 and spray tube 22, high pressure nozzle 2 is connected with container 11 through power supply 12, the exit end of high pressure nozzle 2 is equipped with inside and outside cup joint's spacing sleeve 3 and horn sleeve 4, spacing sleeve 3 is coaxial with horn sleeve 4, be equipped with on the periphery wall of spacing sleeve 3 and be used for limiting the locating part 5 of horn sleeve 4 aperture size; according to the flatness of a construction surface or construction requirements, workers can select high-pressure spray heads 2 with different sizes to spray concrete, and the limiting piece 5 is utilized to facilitate the workers to adjust the size of the horn sleeve 4 according to actual construction requirements or the size of the high-pressure spray heads 2; when the workman utilized 2 shotcrete of high pressure nozzle, partial concrete can kick-back, and the concrete that kick-backs is attached to on the inner wall of loudspeaker sleeve 4 under loudspeaker sleeve 4's the effect of blockking, can not spatter everywhere and fall at the construction place to the resilience volume when reducing the concrete injection, and then guarantee the clean and tidy degree of construction place.

Referring to fig. 2, the limiting part 5 comprises a plurality of supports 6, the number of the supports 6 is three, the three supports 6 are uniformly distributed on the outer peripheral wall of the limiting sleeve 3 around the circumference of the limiting sleeve 3, each support 6 comprises a fixed rod 61 and a movable rod 62, one end of each fixed rod 61 is fixed on the limiting sleeve 3, the other end of each fixed rod 61 is connected with the corresponding movable rod 62 in a sliding manner, a pull ring 8 is arranged on the side wall of one end, away from the fixed rod 61, of each movable rod 62, a fixed ring 13 is arranged on the inner wall of the horn sleeve 4, an elastic rope 14 is tied on each fixed ring 13, and; after the workman adjusted support 6 to suitable length, establish loudspeaker sleeve 4 package on high pressure nozzle 2's outer wall, at this moment, the roof of support 6 and loudspeaker sleeve 4's inner wall closely butt, the workman utilizes the marker pen to make the mark on loudspeaker sleeve 4's outer wall, recycles glue and makes loudspeaker sleeve 4 shaping, and the workman articulates couple 9 on pull ring 8 again, makes loudspeaker sleeve 4 and support 6 stable connection.

Referring to fig. 2 and 3, the movable rod 62 is hollow, a long-strip-shaped through hole 621 is formed in the side wall of the movable rod 62 along the length direction of the movable rod 62, and a threaded hole 611 opposite to the through hole 621 is formed in the side wall of the fixed rod 61 along the length direction of the fixed rod 61; when the workman adjusts the length of support 6 according to the construction requirement, slide movable rod 62 along the length direction of dead lever 61, after the workman adjusts support 6 to suitable length, pass perforation 621 and dead lever 61 threaded connection with bolt 7 to fix movable rod 62 on dead lever 61, simple structure, convenient the regulation is favorable to promoting the suitability of device.

Referring to fig. 3, a plurality of elastic protrusions 612 are disposed on the side wall of the fixed rod 61 along the length direction of the fixed rod 61, and a groove 622 matched with the elastic protrusions 612 is disposed on the inner side wall of the movable rod 62 along the length direction of the movable rod 62; although the worker can adjust the length of the support 6 (fig. 2) to a proper length according to experience, in order to further ensure that the lengths of the three supports 6 are consistent, the worker may need some time, and the worker can adjust the three supports 6 to the same length quickly by using the matching of the elastic protrusions 612 and the grooves 622, so that the worker can adjust the length of the support 6 with time and labor.

Referring to fig. 3, two inner side walls of the movable rod 62 adjacent to the through hole 621 are provided with sliding grooves 623, and two side walls of the fixed rod 61 adjacent to the threaded hole 611 are provided with convex ribs 613 in sliding fit with the sliding grooves 623; however, when the worker slides the movable rod 62 on the fixed rod 61, the sliding groove 623 is matched with the protruding rib 613, so that the process of sliding the movable rod 62 by the worker is stably guided, and the worker can conveniently adjust the bracket 6 (fig. 2) to a proper length.

Referring to fig. 3, the limiting sleeve 3 comprises an installation sleeve 31 and a flexible sleeve 32, the fixing rod 61 is arranged on the outer peripheral wall of the installation sleeve 31, a double-sided magic tape 15 is bonded on the outer peripheral wall of the installation sleeve 31, which is beneficial to bonding the inner wall of one end, close to the support 6, of the horn sleeve 4 on the outer peripheral wall of the limiting sleeve 3, so that the tightness of the connection between the horn sleeve 4 (fig. 2) and the high-pressure nozzle 2 is ensured, a flexible ring 311 is arranged on the inner side wall of the installation sleeve 31 along the circumferential direction of the installation sleeve 31, the flexible sleeve 32 is made of rubber materials, the flexible sleeve 32 is tightly inserted into the side wall of the high-pressure nozzle 2, the flexible sleeve 32 is horn-shaped, and the aperture of one end, close to the installation sleeve; when the worker needs to install the limiting sleeve 3 on the outer peripheral wall of the high-pressure nozzle 2, the flexible sleeve 32 slides along the length direction of the high-pressure nozzle 2, and when the flexible sleeve 32 is tightly inserted into the outer side wall of the nozzle 22, the flexible ring 311 is also tightly abutted to the outer wall of the high-pressure nozzle 21, so that the limiting sleeve 3 is stably fixed on the high-pressure nozzle 2.

The implementation principle of the embodiment is as follows: according to construction requirements, a worker selects a high-pressure nozzle 2 with a proper size, and then slides the limiting sleeve 3 along the length direction of the high-pressure nozzle 2 to enable the flexible sleeve 32 to be tightly inserted into the outer peripheral wall of the high-pressure nozzle 2, at the moment, the flexible ring 311 is tightly abutted against the outer peripheral wall of the high-pressure nozzle 2, and the limiting sleeve 3 is fixed on the outer peripheral wall of the high-pressure nozzle 2; the worker slides the movable rod 62 again, adjusts the bracket 6 to a proper length, and then passes the bolt 7 through the through hole 621 to be in threaded connection with the fixed rod 61; enclosing the horn sleeve 4 on the limiting sleeve 3, enabling the top end of the support 6 to be tightly abutted to the inner wall of the horn sleeve 4, marking the outer wall of the horn sleeve 4 by using a marking pen by a worker, and molding the horn sleeve 4 by using glue, wherein in order to further ensure the connection tightness between the horn sleeve 4 and the limiting sleeve 3, the horn sleeve 4 is tightly adhered to the limiting sleeve 3 by using a double-sided magic tape 15; the utility model reduces the rebound volume of the sprayed concrete by using the blocking effect of the horn sleeve 4; and the size of the horn sleeve 4 is limited by adjusting the length of the bracket 6, so that the suitability of the device is improved while the smoothness of a construction site is ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a injection apparatus for reducing tunnel concrete resilience volume, includes fuselage (1) and high pressure nozzle (2) of connection on fuselage (1), its characterized in that: be close to on the lateral wall of high pressure nozzle (2) exit end and be equipped with inside and outside spacing sleeve (3) and the loudspeaker sleeve (4) that cup joint, spacing sleeve (3) and loudspeaker sleeve (4) are coaxial, be equipped with on the periphery wall of spacing sleeve (3) and be used for injecing locating part (5) of loudspeaker sleeve (4) aperture size.

2. The injection device for reducing the rebound amount of the tunnel concrete according to claim 1, wherein: locating part (5) include a plurality of supports (6), and are a plurality of circumference evenly distributed along limiting sleeve (3) in support (6), support (6) are including dead lever (61) and movable rod (62), movable rod (62) inside cavity, be equipped with perforation (621) of rectangular shape along its length direction on the lateral wall of movable rod (62), the one end of dead lever (61) is fixed on the periphery wall of limiting sleeve (3), the other end and the movable rod (62) of dead lever (61) are slided and are connected, be equipped with on the lateral wall of dead lever (61) and perforate (621) relative screw hole (611), utilize bolt (7) to pass perforation (621) and dead lever (61) threaded connection.

3. The injection device for reducing the rebound amount of the tunnel concrete according to claim 2, wherein: a plurality of elastic protrusions (612) are arranged on the side wall of the fixed rod (61) along the length direction of the fixed rod, and grooves (622) matched with the elastic protrusions (612) are arranged on the inner side wall of the movable rod (62) along the length direction of the movable rod.

4. The injection device for reducing the rebound amount of the tunnel concrete according to claim 2, wherein: the movable rod (62) and the two adjacent inner side walls of the through hole (621) are provided with sliding grooves (623), and the two adjacent side walls of the fixed rod (61) and the threaded hole (611) are provided with convex ribs (613) matched with the sliding grooves (623) in a sliding mode.

5. The injection device for reducing the rebound amount of the tunnel concrete according to claim 2, wherein: be equipped with pull ring (8) on the lateral wall of movable rod (62), be equipped with solid fixed ring (13) on the inner wall of loudspeaker sleeve (4), be equipped with elasticity rope (14) on solid fixed ring (13), the one end that solid fixed ring (13) were kept away from in elasticity rope (14) is connected with and hangs in touch (9) with pull ring (8) matched with, the inner wall of loudspeaker sleeve (4) one end that is close to support (6) is through the inseparable bonding of the periphery wall of two-sided magic subsides (15) with spacing sleeve (3).

6. The injection device for reducing the rebound amount of the tunnel concrete according to claim 2, wherein: spacing sleeve (3) are including installation sleeve (31) and flexible sleeve (32), support (6) set up on the periphery wall of installation sleeve (31), flexible sleeve (32) closely pegs graft with the periphery wall of high pressure nozzle (2).

7. The injection device for reducing the rebound amount of the tunnel concrete according to claim 6, wherein: the flexible sleeve (32) is trumpet-shaped, and the aperture of the end, close to the mounting sleeve (31), of the flexible sleeve (32) is smaller than the aperture of the end, far away from the mounting sleeve (31).

8. The injection device for reducing the rebound amount of the tunnel concrete according to claim 6, wherein: the inner side wall of the installation sleeve (31) is provided with a flexible ring (311) along the circumferential direction, and the flexible ring (311) is connected with the outer peripheral wall of the high-pressure nozzle (2) in an inserting mode.