CN216609408U

CN216609408U - Convenient dismantlement formula shower nozzle and concrete 3D printer

Info

Publication number: CN216609408U
Application number: CN202123063264.6U
Authority: CN
Inventors: 蒋腾飞; 王海春; 林海巍; 陈杰; 潘金龙
Original assignee: Nanjing Green Additives Intelligent Manufacturing Research Institute Co ltd
Current assignee: Nanjing Green Additives Intelligent Manufacturing Research Institute Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-27
Anticipated expiration: 2031-12-08

Abstract

The invention provides a convenient and fast detachable spray head and a concrete 3D printer, wherein the convenient and fast detachable spray head comprises a feeding screw rod, a spray head body, a spray head fixing seat and a nozzle; the nozzle body is provided with a feeding end, a discharging end and a feeding cavity communicated with the feeding end and the discharging end; at least a portion of the feed screw is disposed in the feed chamber; the nozzle is arranged at the discharge end of the spray head body and is connected with the spray head body through a plurality of connecting components; the shower nozzle body is installed in the hole of shower nozzle fixing base, and the outer wall of shower nozzle body is provided with a plurality of bellyings, and the crisscross distribution has a plurality of grooves and spacing groove of lining up on the pore wall of hole. The invention not only realizes the quick installation and disassembly of the whole spray head and the spray nozzle and provides convenience for subsequent maintenance, but also is beneficial to the miniaturization design of the spray head and the printer, reduces the occupied space and the manufacturing cost, and also provides favorable conditions for realizing the printing of small components.

Description

Convenient dismantlement formula shower nozzle and concrete 3D printer

Technical Field

The invention relates to the technical field of 3D printing construction, in particular to a convenient detachable spray head and a concrete 3D printer.

Background

Due to the nature and unique advantages of 3D printing, concrete material based 3D printing enables the production of highly digitized components with complex three-dimensional internal architecture. Compared with the traditional building, the 3D printing building is formed in one step, so that the waste caused by reworking and material cutting caused by size difference is effectively avoided, and a large amount of material cost and labor cost are saved.

The 3D printing machine based on the concrete material is small in quantity and variety, and a universal nozzle design does not exist, so that the concrete material is stored and extruded. The existing extrusion devices are large in size, the nozzles are not easy to replace and are generally made of metal materials, a storage space for storing concrete printing materials is generally fixed on a rack and is not easy to detach, clean and replace, and therefore certain inconvenience exists in the actual use process.

Disclosure of Invention

The invention aims to provide a convenient and detachable spray head and a concrete 3D printer, which can realize quick mounting and dismounting of a spray nozzle and the spray head integrally and have wider applicability.

In order to achieve the purpose, the invention provides the following technical scheme: a convenient and fast detachable spray head comprises a feeding screw rod, a spray head body, a spray head fixing seat and a spray nozzle; the spray head body is provided with a feeding end, a discharging end and a feeding cavity communicated with the feeding end and the discharging end; at least one part of the feeding screw is arranged in the feeding cavity and is provided with rotary power by a motor; the nozzle is arranged at the discharge end of the spray head body and is connected with the spray head body through a plurality of connecting components;

the shower nozzle body is installed in the hole of shower nozzle fixing base, the outer wall of shower nozzle body is provided with a plurality of bellyings, it has a plurality of grooves and spacing grooves of lining up to distribute on the pore wall of hole in a staggered way, when the bellyings of shower nozzle body with the spacing groove is in a single piece, it receives the limiting displacement of spacing groove and can't pass along the direction of feed completely the hole, when the bellyings of shower nozzle body with link up the groove in a single piece, it can pass completely the hole.

Further, the feed end of the nozzle is magnetically connected with the discharge end of the nozzle body.

Furthermore, the end face of the feeding end of the nozzle and the corresponding position of the discharging end of the nozzle body are provided with a plurality of magnets.

Further, coupling assembling is the hasp subassembly that has hasp and hasp, the outer wall of nozzle is provided with a plurality of overlap joint portions, the hasp of hasp subassembly is installed on the outer wall that is close to the discharge end of shower nozzle body, its moving part can with overlap joint portion forms the overlap joint.

Furthermore, the shower nozzle body has along the axial big footpath section, changeover portion and the path section that links to each other in proper order, the tip of shower nozzle body big footpath section is the feed end, and the tip of path section is the discharge end, the bellying sets up on the outer wall of big footpath section.

Furthermore, 6 bulges, through grooves and limiting grooves are respectively and uniformly distributed in the circumferential direction.

Further, the terminal surface of bellying sets up connecting hole I, the terminal surface of spacing groove is provided with connecting hole II, the terminal surface of shower nozzle fixing base is provided with a plurality of connecting holes III, connecting hole I, connecting hole II and connecting hole III all are on a parallel with the axis direction, just connecting hole I can with connecting hole II aligns one by one.

Further, the nozzle is of a funnel structure.

The invention also provides a method for installing the conveniently detachable spray head, which comprises the following steps:

installing a spray head fixing seat on a frame of a printer, and connecting a feeding screw rod with a feeding motor of the printer;

inserting the sprayer body into the inner hole of the sprayer fixing seat, inserting the protruding parts into the limiting grooves in a one-to-one correspondence manner, and connecting the sprayer body with the sprayer fixing seat through a connecting piece;

the nozzle is aligned with the discharge end of the nozzle body and then connected with the discharge end of the nozzle body through the connecting component.

The invention also provides a method for disassembling the conveniently-disassembled spray head, which comprises the following steps:

loosening the connecting assembly and detaching the nozzle from the discharge end of the nozzle body;

loosening the connecting piece, moving the spray head body along the direction opposite to the feeding direction to enable the boss to be completely separated from the limiting groove, rotating around the axis to enable the boss to be aligned with the through groove, and moving the spray head body along the direction same as the feeding direction to be completely separated from the spray head fixing seat;

and loosening the connecting piece between the spray head fixing seat and the rack, and detaching the spray head fixing seat from the rack.

The invention also provides a concrete 3D printer which comprises a rack and the spray head, wherein the spray head is arranged on the rack, and the spray head is the convenient and detachable spray head.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the rapid installation and disassembly of the whole spray head and the spray nozzle are realized, convenience is provided for subsequent maintenance, the miniaturization design of the spray head and the printer is facilitated, the occupied space is reduced, the manufacturing cost is reduced, and favorable conditions are provided for realizing the printing of small components.

2. According to the invention, the feeding screw is arranged in the spray head to realize controllable extrusion of the concrete material, the shape and flow of the printing material can be restrained by matching with the funnel-shaped nozzle, high-precision flow control and extrusion control of the printing materials with different proportions are facilitated, and high-precision printing of small components is realized.

3. According to the invention, the installation structure between the spray head fixing seat and the spray head body is utilized, so that interference on other parts on the upper part is avoided, and the installation and disassembly processes are more convenient.

4. According to the invention, the magnetic force generated by the magnetic component is utilized to realize the rapid alignment and pre-fixation of the nozzle and the nozzle body during the installation of the nozzle, and meanwhile, the hasp component is matched to further improve the convenience during the installation of the nozzle.

Drawings

FIG. 1 is a perspective view of the conveniently detachable nozzle of the present invention;

FIG. 2 is an exploded view of the portable sprinkler head of FIG. 1;

FIG. 3 is a front view of the construction of the easy-to-detach sprayer shown in FIG. 1;

FIG. 4 is a perspective view of the circular nozzle of the present invention;

FIG. 5 is a front view of the circular nozzle of FIG. 4;

FIG. 6 is a perspective view of a rectangular nozzle according to the present invention;

FIG. 7 is a front view of the rectangular nozzle configuration of FIG. 6;

FIG. 8 is a perspective view of the nozzle body according to the present invention;

FIG. 9 is a front elevational view of the sprinkler body illustrated in FIG. 8;

FIG. 10 is a perspective view of the holder for a nozzle of the present invention;

fig. 11 is a structural plan view of the nozzle holder shown in fig. 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "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.

As shown in fig. 1 to 11, the present invention provides a detachable spray head, which includes a feed screw 1, a spray head body 2, a spray head fixing seat 3 and a spray nozzle 4. The nozzle body 2 has a feed end, a discharge end and a feed chamber 26 communicating the feed end and the discharge end. The feed chamber 26 serves to store concrete material. At least a portion of the feed screw 1 is disposed in the feed chamber 26 and is provided with rotational power by a motor. The feed screw 1 serves to convey the concrete material stored in the feed chamber 26 in the direction of the nozzle 4 and to effect extrusion. The feed screw 1 has a certain diameter change, and the size of the blades 11 on the feed screw 1 changes along with the diameter change of the feed cavity 26, so that the feed screw can be adapted to the characteristics of different heights of the sprayer body.

The nozzle 4 is arranged at the discharge end of the nozzle body 2 and is connected with the nozzle body through 3 connecting components 5. The nozzle 4 is of a funnel structure. When installing nozzle 4, in order to improve the convenience of installation, nozzle 4 and shower nozzle body 2 adopt magnetism to inhale and realize the pre-installation. Specifically, the terminal surface of the feed end of nozzle 4 and the discharge end of shower nozzle body 2 correspond the position and respectively have three recess along circumferencial direction evenly distributed, be provided with magnet 6 in the recess, can realize guide and the pre-installation in the installation, fixed mounting that can be quick after magnet 6 adsorbs three coupling assembling between two parts, thereby it is fixed to realize lining up, the totality is quick convenient, easy to operate, can help quick change shower nozzle, nozzle 4's discharge gate shape can be according to the characteristic of printing demand and printing object and revise and adjust, nozzle 4's discharge gate is circular or rectangle.

The nozzle fixing seat 3 is an annular component, and the nozzle fixing seat 3 is installed on the rack. The shower nozzle body 2 is installed in the hole of shower nozzle fixing base 3, and the outer wall of shower nozzle body 2 evenly is provided with 6 bellying 24 along the circumferencial direction, and bellying 24 is the rectangular structure body, and it has 6 to link up groove 31 and 6 spacing grooves 32 to distribute along the circumferencial direction on the pore wall of hole, links up groove 31 and spacing groove 32 crisscross distribution. When the protruding portions 24 of the nozzle body 2 are matched with the limiting grooves 32 one by one, the protruding portions cannot completely penetrate through the inner hole along the feeding direction due to the limiting effect of the limiting grooves 32, and when the protruding portions 24 of the nozzle body 2 are matched with the through grooves 31 one by one, the protruding portions can completely penetrate through the inner hole.

In order to facilitate the disassembly and assembly, the connecting assembly 5 is a hasp assembly provided with hasps and lock catches, the hasp assemblies are uniformly provided with 3 hasps along the circumferential direction, the hasps are arranged on the outer wall, close to the discharge end, of the spray head body 2, the lock catches are arranged on the outer wall of the nozzle 4, and the hasps can form lap joints with the corresponding lock catches.

The nozzle body 2 is provided with a large-diameter section 21, a transition section 22 and a small-diameter section 23 which are sequentially connected along the axial direction, the end part of the large-diameter section 21 of the nozzle body 2 is a feeding end, the end part of the small-diameter section 23 is a discharging end, and the protruding part 24 is arranged on the outer wall of the large-diameter section 21. The nozzle body 2 is funnel-shaped, so that the flowing and extrusion of concrete materials are stable and controllable, the universality is realized, and the nozzle is suitable for concrete printing materials with different proportions.

The terminal surface of bellying 24 sets up connecting hole I25, and the terminal surface of spacing groove 32 is provided with connecting hole II33, and the terminal surface of shower nozzle fixing base 3 is provided with 12 connecting holes III34, and connecting hole I25, connecting hole II33 and connecting hole III34 all are on a parallel with the axis direction, and connecting hole I25 can align with connecting hole II33 one by one. The connecting holes I25, II33 and III34 are threaded holes or bolt holes, and the corresponding connecting pieces are bolts or bolts.

The invention also provides a method for installing the conveniently detachable spray head, which comprises the following steps: the nozzle fixing seat 3 is arranged on a frame of the printer, and the feeding screw rod 1 is connected with a feeding motor of the printer; inserting the nozzle body 2 into an inner hole of the nozzle fixing seat 3, inserting the protruding parts 24 into the limiting grooves 32 in a one-to-one correspondence manner, and connecting the nozzle body 2 and the nozzle fixing seat 3 through a connecting piece; the nozzle 4 is aligned with the discharge end of the nozzle body 2 and then connected with the discharge end of the nozzle body through the connecting component.

The invention also provides a method for disassembling the conveniently-disassembled spray head, which comprises the following steps: loosening the connecting assembly, and detaching the nozzle 4 from the discharge end of the spray head body 2; loosening the connecting piece, moving the spray head body 2 along the direction opposite to the feeding direction to enable the boss 24 to be completely separated from the limiting groove 32, then rotating around the axis to enable the boss 24 to be aligned with the through groove 31, and then moving the spray head body 2 along the direction same as the feeding direction to be completely separated from the spray head fixing seat 3; and loosening the connecting piece between the spray head fixing seat 3 and the rack, and detaching the spray head fixing seat 3 from the rack.

The invention also provides a concrete 3D printer which comprises a rack and the spray head, wherein the spray head is arranged on the rack, and the spray head is the convenient detachable spray head.

The shower nozzle in this application can reduce the size of concrete printer frame greatly to realize less occupation of land space, thereby the placing of the printer of being convenient for can make the relevant experiment of concrete printing become simple and convenient. In addition, the printing of smaller concrete members and the related experiments of 3D printing of concrete materials can be carried out.

The invention is not described in detail, but is well known to those skilled in the art.

Finally, it is to be noted that: although the present invention has been described in detail with reference to examples, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a convenient dismantlement formula shower nozzle which characterized in that: comprises a feeding screw rod (1), a spray head body (2), a spray head fixing seat (3) and a spray nozzle (4); the spray head body (2) is provided with a feeding end, a discharging end and a feeding cavity (26) communicated with the feeding end and the discharging end; at least one part of the feeding screw (1) is arranged in the feeding cavity (26) and is provided with rotary power by a motor; the nozzle (4) is arranged at the discharge end of the spray head body (2) and is connected with the spray head body through a plurality of connecting components (5);

the utility model discloses a shower nozzle, including shower nozzle fixing base (3), shower nozzle body (2), the hole of shower nozzle fixing base (3), the outer wall of shower nozzle body (2) is provided with a plurality of bellying (24), crisscross distribution has a plurality of grooves (31) and spacing groove (32) of lining up on the pore wall of hole, the bellying (24) of shower nozzle body (2) with during spacing groove (32) one-by-one cooperation, it receives the limiting displacement of spacing groove (32) and can't pass completely along the direction of feed the hole, the bellying (24) of shower nozzle body (2) with when lining up groove (31) one-by-one cooperation, it can pass completely the hole.

2. The spray head of claim 1, wherein: the feeding end of the nozzle (4) is magnetically connected with the discharging end of the spray head body (2).

3. The spray head of claim 2, wherein: the end face of the feeding end of the nozzle (4) and the corresponding position of the discharging end of the nozzle body (2) are provided with a plurality of magnets (6).

4. The spray head of claim 1, wherein: coupling assembling (5) is the hasp subassembly that has hasp and hasp, the hasp of hasp subassembly is installed on the outer wall that is close to the discharge end of shower nozzle body (2), the hasp of hasp subassembly is installed on the outer wall of nozzle (4), the hasp can form the overlap joint with the hasp that corresponds.

5. The spray head of claim 1, wherein: the shower nozzle body (2) have along the axial big footpath section (21), changeover portion (22) and path section (23) that link to each other in proper order, the tip of shower nozzle body (2) big footpath section (21) is the feed end, and the tip of path section (23) is the discharge end, bellying (24) set up on the outer wall of big footpath section (21).

6. The spray head of claim 1, wherein: the number of the lug bosses (24), the number of the through grooves (31) and the number of the limiting grooves (32) are respectively and uniformly distributed along the circumferential direction.

7. The spray head of claim 1, wherein: the terminal surface of bellying (24) sets up connecting hole I (25), the terminal surface of spacing groove (32) is provided with connecting hole II (33), the terminal surface of shower nozzle fixing base (3) is provided with a plurality of connecting holes III (34), connecting hole I (25), connecting hole II (33) and connecting hole III (34) all are on a parallel with the axis direction, just connecting hole I (25) can with connecting hole II (33) align one by one.

8. The spray head of claim 7, wherein: the nozzle (4) is of a funnel structure.

9. The utility model provides a concrete 3D printer, includes frame and shower nozzle, the shower nozzle is installed in the frame, its characterized in that: the spray head is the convenient and detachable spray head in claim 1.