CN220297849U - Connecting device and three-dimensional printer - Google Patents

Abstract

The utility model discloses a connecting device and a three-dimensional printer, relates to the technical field of printing equipment, and mainly aims to facilitate the disassembly and assembly of a printing platform so as to improve the disassembly and assembly efficiency of the printing platform. The main technical scheme of the utility model is as follows: the connecting device comprises a first connecting piece, wherein a limiting groove is formed in the first connecting piece; the second connecting piece is provided with a jack; the locking piece is movably arranged on the second connecting piece through an elastic piece, and the elastic piece is used for providing an elastic force for the locking piece to move from the second position to the first position; the first connecting piece is inserted into the jack; in the first position, the locking piece is clamped in the limiting groove, and the first connecting piece and the second connecting piece are locked; in the second position, the locking piece is separated from the limiting groove, and the second connecting piece can be separated from the first connecting piece; the first connecting piece is used for abutting against the locking piece in the process of inserting the first connecting piece into the jack so that the locking piece moves to the second position until the locking piece is opposite to the limiting groove and moves to the first position.

Description

Connecting device and three-dimensional printer

Technical Field

The utility model relates to the technical field of three-dimensional printing equipment, in particular to a connecting device and a three-dimensional printer.

Background

Photo-curing three-dimensional printers typically apply light to a photosensitive material by a light source to cure the liquid photosensitive material into a three-dimensional solid model.

At present, in order to facilitate maintenance of a printing platform, cleaning of a model on the printing platform and the like, the printing platform is usually detachably connected with a cantilever, so that a user can conveniently disassemble and assemble the printing platform, as disclosed in patent with publication number CN115366415A, a connecting device, a printing platform device and a 3D printer are provided, and a fixing assembly is specifically disclosed to be movably connected with a first pressing block, the fixing assembly is connected with the cantilever, the fixing assembly is used for clamping the printing platform assembly with the first pressing block, the fastening assembly comprises a fastening bolt and an adjusting handle, the fastening bolt is connected with the fixing assembly, the first pressing block is connected with the adjusting handle, when the adjusting handle is opened, a base circle area of an eccentric wheel faces the first pressing block, so that the distance between the first pressing block and the fixing assembly is increased, and the printing platform assembly can be detached between the fixing assembly and the first pressing block; the adjusting handle is broken off with fingers and thumb for the eccentric wheel rotates and then by protruding region support the first briquetting, makes first briquetting be close to fixed subassembly, thereby presss from both sides tight printing platform subassembly, realizes printing platform's equipment.

When the printing platform assembly is dismounted, the user needs to break the adjusting handle to adjust the distance between the fixing assembly and the first pressing block, so that the dismounting of the printing platform assembly can be realized, the operation is inconvenient, and the dismounting efficiency is lower.

Disclosure of Invention

In view of this, the embodiment of the utility model provides a connecting device and a three-dimensional printer, which mainly aims to make the disassembly and assembly of a printing platform more convenient so as to improve the disassembly and assembly efficiency.

In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:

in a first aspect, an embodiment of the present utility model provides a connection device applied to a three-dimensional printer, where the three-dimensional printer includes a printing platform and a cantilever, including:

the first connecting piece is provided with a limiting groove and is used for being connected with the cantilever;

the second connecting piece is provided with a jack and is used for being connected with the printing platform;

an elastic member;

the locking piece is movably arranged on the second connecting piece through the elastic piece, the locking piece is provided with a first position and a second position, and the elastic piece is used for providing an elastic force for the locking piece to move from the second position to the first position;

the first connecting piece is used for being inserted into the jack; in the first position, the locking piece is clamped in the limiting groove, and the first connecting piece and the second connecting piece are locked; in the second position, the locking piece is separated from the limiting groove, and the second connecting piece can be separated from the first connecting piece;

the first connecting piece is used for abutting against the locking piece in the process of inserting the first connecting piece into the jack so that the locking piece moves to the second position until the locking piece is opposite to the limiting groove and moves to the first position.

Further, the locking piece comprises a main body and a clamping connector connected to one end of the main body, and the main body is movably connected to the second connecting piece through the elastic piece;

the limiting groove is formed in the side part of the first connecting piece;

the clamping connector is positioned in the jack and can be opposite to the limiting groove at the first position, and is used for being clamped in the limiting groove at the first position and separated from the limiting groove at the second position;

the first connecting piece is used for abutting against the clamping connector in the process of inserting the first connecting piece into the jack so that the clamping connector moves to the second position until the clamping connector is opposite to the limiting groove and moves to the first position.

Further, the first connecting piece comprises a first abutting end which is used for abutting against the clamping connector, the end face of the first abutting end comprises a first arc surface, and the first abutting end abuts against the clamping connector through the first arc surface; and/or the number of the groups of groups,

the clamping connector comprises a second abutting end which is used for being abutted with the first connecting piece, the end face of the second abutting end comprises a second arc surface, and the second abutting end is abutted with the first connecting piece through the second arc surface.

Further, the locking piece further comprises a pressing head connected to the other end of the main body, and the pressing head protrudes out of the surface of the second connecting piece when in the first position and is used for receiving pressing force to enable the clamping connector to move from the first position to the second position.

Further, the first connector has a plugging direction for being plugged into the jack;

the transverse width of the first connecting piece is gradually reduced along the plugging direction;

the transverse width of the jack is gradually reduced along the plugging direction;

when the first connecting piece is inserted into the jack, the side face of the first connecting piece is attached to the inner side wall face of the jack.

Further, the first connector includes large and small ends facing away from each other;

the limiting groove comprises a first groove wall surface and a second groove wall surface which are oppositely arranged along the plugging direction, the first groove wall surface is close to the small head end, and the first groove wall surface is obliquely arranged in a direction away from the second groove wall surface;

the surface of the clamping joint corresponding to the first groove wall surface is a first inclined surface, and the inclined direction of the first inclined surface is matched with the inclined direction of the first groove wall surface;

the first inclined surface is used for being connected with the first groove wall surface in a sliding manner in the process of clamping the clamping connector into the limiting groove, so that the clamping connector drives the second connecting piece to move towards the direction of the big end;

when the first connecting piece is inserted into the jack, the wall surface of the first slot is abutted against the first inclined surface, so that the clamping connector drives the second connecting piece to cling to the first connecting piece.

Further, a sliding groove is formed in the second connecting piece, the sliding groove extends along the direction from the first position to the second position, and the sliding groove is communicated with the jack;

the main body is connected in the chute in a sliding way through the elastic piece;

the clamping connector comprises a mounting surface which is opposite to the first inclined surface, and the mounting surface is abutted to the groove wall surface of the sliding groove and can slide relatively.

Further, the second connecting piece comprises a body and a cover body detachably connected with the body;

the sliding chute and the jack are respectively arranged on the body;

the cover body covers the sliding groove.

Further, two opposite side surfaces of the first connecting piece respectively comprise a second inclined surface, and the two second inclined surfaces are respectively inclined towards the middle part of the first connecting piece;

the two opposite inner side wall surfaces of the jack comprise third inclined surfaces, and the inclined direction of the third inclined surfaces is matched with the inclined direction of the corresponding second inclined surfaces;

when the first connecting piece is inserted into the jack, the second inclined surface is abutted with the third inclined surface.

On the other hand, the embodiment of the utility model provides a three-dimensional printer which comprises the connecting device.

By means of the technical scheme, the utility model has at least the following beneficial effects:

according to the technical scheme provided by the embodiment of the utility model, the first connecting piece can be connected with the cantilever, the second connecting piece can be connected with the printing platform, when the printing platform needs to be installed, the second connecting piece can be held by hand to align the jack with the first connecting piece so as to insert the first connecting piece into the jack, in the inserting process, the first connecting piece can be abutted with the locking piece so that the locking piece moves to the second position against the elastic force of the elastic piece until the locking piece is opposite to the limiting groove and moves to the first position, and the locking piece is clamped in the limiting groove, so that the first connecting piece and the second connecting piece are locked, and the installation of the printing platform on the cantilever is realized; when the printing platform needs to be disassembled, the locking piece can be controlled to be in the second position, so that the locking piece overcomes the elastic force of the elastic piece and is separated from the limiting groove, at the moment, the second connecting piece can be separated from the first connecting piece, so that the printing platform is disassembled from the cantilever, and in the disassembly and assembly process of the printing platform, the action of repeatedly breaking a certain part does not exist, so that the disassembly and assembly operation of the printing platform is more convenient and rapid, and the disassembly and assembly efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a first connecting member of a connecting device according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic structural diagram of a first connecting member of a connecting device according to an embodiment of the present utility model at a second view angle;

fig. 3 is a schematic structural diagram of a second connecting member of a connecting device according to an embodiment of the present utility model at a first view angle;

fig. 4 is a schematic structural diagram of a second connecting member of a connecting device according to an embodiment of the present utility model at a second view angle;

fig. 5 is a schematic structural diagram of a locking member of a connection device according to an embodiment of the present utility model at a first view angle;

fig. 6 is a schematic structural diagram of a locking member of a connecting device according to an embodiment of the present utility model at a second view angle;

fig. 7 is a schematic structural diagram of a printing platform and cantilever split arrangement of a three-dimensional printer according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a cantilever of a three-dimensional printer according to an embodiment of the present utility model, where the cantilever is connected with a first connecting member, and the first connecting member and a locking member are matched with each other;

fig. 9 is a schematic structural diagram of a printing platform of a three-dimensional printer connected with a second connecting piece according to an embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view of a three-dimensional printer in a first direction according to an embodiment of the present utility model;

FIG. 11 is a schematic cross-sectional view of a three-dimensional printer in a second direction according to an embodiment of the present utility model;

fig. 12 is an enlarged schematic view at a in fig. 11.

Reference numerals illustrate:

100-a printing platform; 200-cantilever; 1-a first connector; 11-a limit groove; 2-a second connector; 21-a jack; 3-locking member; 31-a body; 32-clamping joints; 33-pressing head; 4-elastic members; 12-a first arc surface; 321-a second arc surface; 111-a first groove wall surface; 112-a second groove wall surface; 322-a first inclined surface; 22-sliding grooves; 323-a mounting surface; 32-a body; 24-cover; 13-a second tilt; 211-third inclined surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the preferred embodiments of the present utility model will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present utility model.

As shown in fig. 1 to 7 and 10, the embodiment of the present utility model provides a connection device, which can be applied to a three-dimensional printer, wherein the three-dimensional printer comprises a printing platform 100 and a cantilever 200, the connection device comprises a first connection member 1, a limit groove 11 is formed on the first connection member 1, and the first connection member 1 is used for being connected with the cantilever 200; a second connecting piece 2, wherein a jack 21 is formed on the second connecting piece 2, and the second connecting piece 2 is used for being connected with the printing platform 100; a locking member 3 movably provided to the second connecting member 2 by an elastic member 4, the locking member 3 having a first position and a second position, the elastic member 4 for providing an elastic force to the locking member 3 to move from the second position to the first position; the first connecting piece 1 is inserted into the jack 21; in the first position, the locking piece 3 is clamped in the limiting groove 11, and the first connecting piece 1 and the second connecting piece 2 are locked; in the second position, the locking piece 3 is separated from the limiting groove 11, and the second connecting piece 2 can be separated from the first connecting piece 1; the first connecting piece 1 is used for abutting against the locking piece 3 during the process of inserting the first connecting piece into the jack 21, so that the locking piece 3 moves to the second position until the locking piece 3 is opposite to the limit groove 11 and moves to the first position.

In the connecting device provided by the embodiment of the utility model, the first connecting piece 1 can be connected with the cantilever 200, or the first connecting piece 1 can be integrally formed with the cantilever 200, the second connecting piece 2 can be connected with the printing platform 100, when the printing platform 100 needs to be installed, the second connecting piece 2 can be held by hand to align the jack 21 with the first connecting piece 1 so as to insert the first connecting piece 1 into the jack 21, in the inserting process, the first connecting piece 1 can be abutted with the locking piece 3 so that the locking piece 3 moves to the second position against the elastic force of the elastic piece 4 until the locking piece 3 is opposite to the limiting groove 11 and moves to the first position, and the locking piece 3 is clamped in the limiting groove 11, and at the moment, the first connecting piece 1 and the second connecting piece 2 are locked, so that the installation of the printing platform 100 on the cantilever 200 is realized; when the printing platform 100 needs to be disassembled, the locking piece 3 can be controlled to be in the second position, so that the locking piece 3 overcomes the elastic force of the elastic piece 4 and is separated from the limiting groove 11, and at the moment, the second connecting piece 2 can be separated from the first connecting piece 1, so that the printing platform 100 is disassembled from the cantilever 200, and in the disassembly and assembly process of the printing platform 100, the action of repeatedly snapping a certain part does not exist, so that the disassembly and assembly operation of the printing platform 100 is more convenient and quick, and the disassembly and assembly efficiency is improved.

It can be understood that when the printing platform 100 is installed, the user only needs to hold the second connecting piece 2, align the jack 21 with the first connecting piece 1 and move forward, the locking piece 3 can move to the second position under the abutting driving of the first connecting piece 1, when the locking piece 3 is opposite to the limiting groove 11, the locking piece 3 loses the driving action of the first connecting piece 1 and moves to the first position under the action of the elastic force of the elastic piece 4, the locking piece 3 is automatically clamped in the limiting groove 11, that is, when the printing platform 100 is installed, the user only needs to insert the first connecting piece 1 into the jack 21 of the second connecting piece 2, the locking piece 3 and the locking piece can be automatically locked and connected without other operations, and the operation is convenient.

In some embodiments, the limiting groove 11 may be formed at the top of the first connecting piece 1, and the locking piece 3 may be rotatably disposed on the second connecting piece 2 through the elastic piece 4, that is, the locking piece 3 may rotate relative to the second connecting piece 2 between a first position and a second position, where the locking piece 3 is clamped to the limiting groove 11 under the elastic force of the elastic piece 4, and in the second position, the locking piece 3 overcomes the elastic force of the elastic piece 4 and is separated from the limiting groove 11, and the first connecting piece 1 is used to abut against the locking piece 3 during the process of inserting the locking piece into the jack 21, so that the locking piece 3 rotates to the second position until the locking piece 3 is opposite to the limiting groove 11 and rotates to the first position, thereby achieving locking or separating of the first connecting piece 1 and the second connecting piece 2.

For convenience of use, in the embodiment of the present utility model, referring to fig. 5 to 8, the locking member 3 may include a main body 31 and a snap connector 32 connected to one end of the main body 31, the main body 31 being movably connected to the second connecting member 2 through the elastic member 4; the limiting groove 11 is formed in the side part of the first connecting piece 1; in the first position, the clamping connector 32 is located in the jack 21 and can be opposite to the limit groove 11, and the clamping connector 32 is used for being clamped in the limit groove 11 in the first position and separated from the limit groove 11 in the second position; the first connector 1 is used for abutting against the clamping connector 32 during the process of being inserted into the jack 21, so that the clamping connector 32 moves to the second position until the clamping connector 32 is opposite to the limit groove 11 and moves to the first position.

In the above embodiment, the locking member 3 is movably connected to the second connecting member 2, that is, the main body 31 of the locking member 3 can move between the first position and the second position relative to the second connecting member 2, so as to achieve that the locking joint 32 of the locking member 3 is locked in the limit groove 11 under the elastic force of the elastic member 4, or is separated from the limit groove 11 against the elastic force of the elastic member 4. Compared with the scheme that the locking piece 3 is rotationally arranged on the second connecting piece 2, the locking piece 3 is movably connected to the second connecting piece 2, so that space required by the movement of the locking piece 3 can be saved, the clamping joint 32 and the limiting hole can be clamped or separated in the jack 21, damage can be avoided, the structure is more stable and reliable, and the use is more convenient.

In some embodiments, the limiting groove 11 may have various structural forms, for example, it may be a notch structure penetrating through the upper and lower surfaces of the first connector 1, or it may be a groove structure penetrating only one of the upper and lower surfaces of the first connector 1, or no groove structure penetrating through the upper and lower surfaces of the first connector 1, so long as the snap connector 32 can be inserted to achieve the mutual snap connection between the first connector 1 and the snap connector 32, and the structure of the limiting groove 11 is not limited in this application.

In the embodiment of the present utility model, referring to fig. 2, 6, 7 and 8, the first connecting piece 1 may include a first abutting end for abutting against the bayonet 32, where an end surface of the first abutting end includes a first arc surface 12, and the first abutting end abuts against the bayonet 32 through the first arc surface 12; and/or, the clamping connector 32 comprises a second abutting end for abutting against the first connecting piece 1, the end face of the second abutting end comprises a second arc surface 321, and the second abutting end abuts against the first connecting piece 1 through the second arc surface 321.

In the above embodiment, the first arc surface 12 is provided at the first abutting end and/or the second arc surface 321 is provided at the second abutting end, so that when the first connector 1 abuts against the clamping connector 32, the first arc surface 12 and/or the second arc surface 321 can form a guiding surface, so that the clamping connector 32 smoothly slides over the first connector 1 through the first arc surface 12 and/or the second arc surface 321 to move to the second position, interference between the first connector 1 and the second connector 2 is avoided, and smooth locking of the first connector 1 and the second connector 2 is ensured.

In the embodiment of the present utility model, referring to fig. 5 and 6, and referring to fig. 7 to 9, the locking member 3 may further include a pressing head 33 connected to the other end of the main body 31, and the pressing head 33 protrudes from the surface of the second connecting member 2 and is configured to receive an external force to move the clamping head 32 from the first position to the second position.

In the above embodiment, the pressing head 33 is disposed, and the pressing head 33 protrudes from the surface of the second connecting piece 2, so that the user can drive the main body 31 to drive the clamping connector 32 to move between the first position and the second position by pressing the pressing head 33. When the printing platform 100 needs to be disassembled, the user holds the printing platform 100 by hand and keeps the finger to press the pressing head 33, so that the clamping connector 32 moves from the first position to the second position, the clamping connector 32 is separated from the limiting groove 11, the second connecting piece 2 can be separated from the first connecting piece 1, and at the moment, the printing platform 100 can be pulled out of the cantilever 200, so that the operation is more convenient.

In the embodiment of the present utility model, referring to fig. 1, 2 and 3, and referring to fig. 10, the first connector 1 has a plugging direction for plugging into the jack 21; the transverse width of the first connecting piece 1 gradually decreases along the plugging direction; the lateral width of the insertion hole 21 gradually decreases in the insertion direction; when the first connector 1 is inserted into the jack 21, the side surface of the first connector 1 is attached to the inner side wall surface of the jack 21.

In the above embodiment, the lateral width of the first connector 1 gradually decreases along the plugging direction, and the lateral width of the jack 21 gradually decreases along the plugging direction, so that the whole of the first connector 1 and the jack 21 may be V-shaped, so that the side surface of the first connector 1 and the inner side wall surface of the jack 21 form a matched inclined surface, when the first connector 1 is plugged into the jack 21, that is, when the clamping connector 32 is clamped in the limiting groove 11 and the first connector 1 and the second connector 2 are locked, the side surface of the first connector 1 is attached to the inner side wall surface of the jack 21, so that a gap between the first connector 1 and the second connector 2 can be eliminated, and shaking is avoided between the first connector 1 and the second connector 2, thereby ensuring stable connection between the printing platform 100 and the cantilever 200, and further ensuring the printing quality of the model.

In the embodiment of the present utility model, referring to fig. 1, 2 and 5, and in combination with fig. 10, the first connector 1 may include a large head end and a small head end facing away from each other; the limiting groove 11 may include a first groove wall surface 111 and a second groove wall surface 112 which are oppositely arranged along the plugging direction, the first groove wall surface 111 is close to the small end, and the first groove wall surface 111 is obliquely arranged in a direction away from the second groove wall surface 112; the surface of the clamping connector 32 corresponding to the first groove wall surface 111 is a first inclined surface 322, and the inclined direction of the first inclined surface 322 is matched with the inclined direction of the first groove wall surface 111; when the first connecting piece 1 is inserted into the insertion hole 21, the first groove wall surface 111 abuts against the first inclined surface 322, so that the clamping connector 32 drives the second connecting piece 2 to be tightly attached to the first connecting piece 1.

In the above embodiment, in the process of clamping the clamping connector 32 into the limiting groove 11, the first inclined surface 322 may be slidably connected with the first groove wall surface 111, the first groove wall surface 111 may apply a component force to the clamping connector 32 toward the big end of the first connector 1 through the first inclined surface 322, the component force makes the clamping connector 32 drive the second connector 2 to automatically move toward the big end of the first connector 1, so that the user can quickly plug the first connector 1 and the second connector 2 into place with only a small thrust force, to realize the installation of the printing platform 100 on the cantilever 200,

when the first connector 1 is inserted into the jack 21, that is, when the clamping connector 32 is clamped in the limiting groove 11 at the first position under the action of the elastic force of the elastic member 4, the first groove wall surface 111 is abutted against the first inclined surface 322, the first groove wall surface 111 continuously applies a component force towards the big end direction of the first connector 1 to the clamping connector 32 through the first inclined surface 322, and the component force can drive the clamping connector 32 to drive the second connector 2 to be tightly attached to the first connector 1, so that the side surface of the first connector 1 is continuously and stably tightly attached to the inner side wall surface of the jack 21, and no gap is ensured between the side surface and the inner side wall surface.

In the embodiment of the present utility model, referring to fig. 4, 9, 11 and 12, the second connecting piece 2 may be provided with a chute 22, where the chute 22 extends in a direction from the first position to the second position, and the chute 22 is in communication with the jack 21; the main body 31 is slidably connected in the chute 22 through the elastic member 4; the clip 32 includes a mounting surface 323 facing away from the first inclined surface 322, and the mounting surface 323 is in contact with the groove wall surface of the chute 22 and is slidable relative to the groove wall surface.

In the above embodiment, the main body 31 is slidably connected to the second connecting piece 2 through the chute 22, so that the structure is simple and the use is reliable; moreover, the mounting surface 323 on the clamping connector 32, which is opposite to the first inclined surface 322, is abutted against the groove wall surface of the chute 22, so that the clamping connector 32 can stably drive the second connecting piece 2 to move towards the big end of the first connecting piece 1 in the process of clamping the clamping connector 32 into the limit groove 11, until the clamping connector 32 is clamped into the limit groove 11, and the clamping connector 32 drives the second connecting piece 2 to be tightly attached to the first connecting piece 1.

In some embodiments, the end of the chute 22 corresponding to the pressing head 33 of the locking member 3 may be an open end, so that the pressing head 33 may protrude out of the chute 22 and protrude from the surface of the second connecting member 2. Further, the elastic member 4 may be a spring, in particular.

In the embodiment of the present utility model, referring to fig. 7 and 9, the second connector 2 may include a body 23 and a cover 24 detachably connected to the body 23; the chute 22 and the jack 21 are respectively arranged on the body 23; the cover 24 covers the chute 22.

Since the locking member 3 is movably disposed in the chute 22 through the elastic member 4, in the above embodiment, the second connecting member 2 is configured as a split structure including the body 23 and the cover 24, so that maintenance of the locking member 3 and the elastic member 4 can be facilitated, and reliable engagement or disengagement of the locking member 3 and the limiting slot 11 is ensured, thereby ensuring smooth locking or separation of the first connecting member 1 and the second connecting member 2, and further ensuring smooth disassembly and assembly of the printing platform 100.

Specifically, the detachable connection between the body 23 and the cover 24 may be various, such as a bolt connection or a snap connection.

In the embodiment of the present utility model, referring to fig. 2, 3 and 10, two opposite sides of the first connecting piece 1 each include a second inclined surface 13, and the two second inclined surfaces 13 are respectively inclined toward the middle of the first connecting piece 1; both opposite inner side wall surfaces of the insertion hole 21 include a third inclined surface 211, and the third inclined surface 211 matches the inclination direction of the corresponding second inclined surface 13; when the first connector 1 is inserted into the insertion hole 21, the second inclined surface 13 abuts against the third inclined surface 211.

In the above embodiment, the two second inclined surfaces 13 of the first connecting member 1 are respectively inclined towards the middle direction of the first connecting member 1, so that the first connecting member 1 can form a dovetail block structure, the inclined direction of the third inclined surface 211 of the insertion hole 21 is matched with the inclined direction of the second inclined surface 13, so that the insertion hole 21 can form a dovetail groove structure, when the first connecting member 1 is inserted into the insertion hole 21, the first connecting member 1 and the second connecting member 2 can form a dovetail matching structure of the dovetail block and the dovetail groove, so that the first connecting member 1 can be locked by the upper and lower inner walls of the insertion hole 21 of the second connecting member 2 in the longitudinal direction, and the self-locking can be realized by the dovetail matching structure, so that the second connecting member 2 is better prevented from being separated from the first connecting member 1 in the longitudinal direction, and the installation stability of the printing platform 100 on the cantilever 200 is improved.

It should be noted that, referring to fig. 2, the second inclined surface 13 and the first arc surface 12 may be different areas on the same surface of the first connecting member 1.

The embodiment of the utility model also provides a three-dimensional printer which comprises the connecting device.

The three-dimensional printer provided by the embodiment of the utility model comprises the connecting device, so that the three-dimensional printer comprises all the beneficial effects of the connecting device, and the description is omitted.

Referring to fig. 10, the first connector 1 may be mounted on the top of one end of the cantilever 200, the second connector 2 may be mounted on the top of the printing platform 100, and a mounting hole may be formed in the second connector 2, and the jack 21 of the second connector 2 penetrates through the bottom surface of the second connector 2, so that the jack 21 may be communicated with the mounting hole, and when the first connector 1 is plugged into the jack 21, one end of the cantilever 200 is plugged into the mounting hole, so as to ensure reliable connection between the printing platform 100 and the cantilever 200.

The embodiment of the utility model provides a connecting device, which is applied to a three-dimensional printer, wherein the three-dimensional printer comprises a printing platform 100 and a cantilever 200, and comprises:

the first connecting piece 1, the first connecting piece 1 is provided with a limit groove 11, and the first connecting piece 1 is used for being connected with the cantilever 200;

the second connecting piece 2 is provided with a jack 21, and the second connecting piece 2 is used for being connected with the printing platform 100;

an elastic member 4;

a locking member 3, the locking member 3 being movably arranged on the second connecting member 2 by an elastic member 4, the locking member 3 having a first position and a second position, the elastic member 4 being adapted to provide the locking member 3 with an elastic force moving from the second position to the first position;

the first connecting piece 1 is used for being inserted into the jack 21; in the first position, the locking piece 3 is clamped in the limiting groove 11, and the first connecting piece 1 and the second connecting piece 2 are locked; in the second position, the locking piece 3 is separated from the limiting groove 11, and the second connecting piece 2 can be separated from the first connecting piece 1;

the first connecting piece 1 is used for abutting against the locking piece 3 during the process of inserting the first connecting piece into the jack 21, so that the locking piece 3 moves to the second position until the locking piece 3 is opposite to the limit groove 11 and moves to the first position.

Wherein the locking member 3 comprises a main body 31 and a clamping head 32 connected to one end of the main body 31, and the main body 31 is movably connected to the second connecting member 2 through the elastic member 4;

the limiting groove 11 is formed in the side part of the first connecting piece 1;

in the first position, the clamping connector 32 is located in the jack 21 and can be opposite to the limit groove 11, and the clamping connector 32 is used for being clamped in the limit groove 11 in the first position and separated from the limit groove 11 in the second position;

the first connector 1 is used for abutting against the clamping connector 32 during the process of being inserted into the jack 21, so that the clamping connector 32 moves to the second position until the clamping connector 32 is opposite to the limit groove 11 and moves to the first position.

The first connecting piece 1 comprises a first abutting end for abutting against the clamping connector 32, the end face of the first abutting end comprises a first arc surface 12, and the first abutting end abuts against the clamping connector 32 through the first arc surface 12; and/or the number of the groups of groups,

the clamping connector 32 comprises a second abutting end which is used for abutting against the first connecting piece 1, the end face of the second abutting end comprises a second arc surface 321, and the second abutting end abuts against the first connecting piece 1 through the second arc surface 321.

The locking member 3 further includes a pressing head 33 connected to the other end of the main body 31, and in the first position, the pressing head 33 protrudes from the surface of the second connecting member 2, so as to receive a pressing force to move the clamping head 32 from the first position to the second position.

Wherein the first connector 1 has a plugging direction for plugging into the jack 21;

the transverse width of the first connecting piece 1 gradually decreases along the plugging direction;

the lateral width of the insertion hole 21 gradually decreases in the insertion direction;

when the first connector 1 is inserted into the jack 21, the side surface of the first connector 1 is attached to the inner side wall surface of the jack 21.

Wherein the first connecting piece 1 comprises a big head end and a small head end which are far away from each other;

the limiting groove 11 comprises a first groove wall surface 111 and a second groove wall surface 112 which are oppositely arranged along the plugging direction, the first groove wall surface 111 is close to the small end, and the first groove wall surface 111 is obliquely arranged in a direction away from the second groove wall surface 112;

the surface of the clamping connector 32 corresponding to the first groove wall surface 111 is a first inclined surface 322, and the inclined direction of the first inclined surface 322 is matched with the inclined direction of the first groove wall surface 111;

the first inclined surface 322 is used for being slidably connected with the first groove wall surface 111 in the process of clamping the clamping connector 32 into the limit groove 11, so that the clamping connector 32 drives the second connecting piece 2 to move towards the direction of the big end;

when the first connecting piece 1 is inserted into the insertion hole 21, the first groove wall surface 111 abuts against the first inclined surface 322, so that the clamping connector 32 drives the second connecting piece 2 to be tightly attached to the first connecting piece 1.

Wherein, the second connecting piece 2 is provided with a chute 22, the chute 22 extends along the direction from the first position to the second position, and the chute 22 is communicated with the jack 21;

the main body 31 is slidably connected in the chute 22 through the elastic member 4;

the clip 32 includes a mounting surface 323 facing away from the first inclined surface 322, and the mounting surface 323 is in contact with the groove wall surface of the chute 22 and is slidable relative to the groove wall surface.

Wherein the second connecting piece 2 comprises a body 23 and a cover 24 detachably connected with the body 23;

the chute 22 and the jack 21 are respectively arranged on the body 23;

the cover 24 covers the chute 22.

Wherein, two opposite sides of the first connecting piece 1 comprise second inclined surfaces 13, and the two second inclined surfaces 13 are respectively inclined towards the middle part of the first connecting piece 1;

both opposite inner side wall surfaces of the insertion hole 21 include a third inclined surface 211, and an inclined direction of the third inclined surface 211 matches an inclined direction of the corresponding second inclined surface 13;

when the first connector 1 is inserted into the insertion hole 21, the second inclined surface 13 abuts against the third inclined surface 211.

The embodiment of the utility model also provides a three-dimensional printer which comprises the connecting device.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A connection device for a three-dimensional printer, the three-dimensional printer comprising a printing platform and a cantilever, comprising:

the first connecting piece is provided with a limiting groove and is used for being connected with the cantilever;

the second connecting piece is provided with a jack and is used for being connected with the printing platform;

an elastic member;

the locking piece is movably arranged on the second connecting piece through the elastic piece, the locking piece is provided with a first position and a second position, and the elastic piece is used for providing an elastic force for the locking piece to move from the second position to the first position;

the first connecting piece is used for being inserted into the jack; in the first position, the locking piece is clamped in the limiting groove, and the first connecting piece and the second connecting piece are locked; in the second position, the locking piece is separated from the limiting groove, and the second connecting piece can be separated from the first connecting piece;

the first connecting piece is used for abutting against the locking piece in the process of inserting the first connecting piece into the jack so that the locking piece moves to the second position until the locking piece is opposite to the limiting groove and moves to the first position.

2. The connection device according to claim 1, wherein,

the locking piece comprises a main body and a clamping connector connected to one end of the main body, and the main body is movably connected to the second connecting piece through the elastic piece;

the limiting groove is formed in the side part of the first connecting piece;

the clamping connector is positioned in the jack and can be opposite to the limiting groove at the first position, and is used for being clamped in the limiting groove at the first position and separated from the limiting groove at the second position;

the first connecting piece is used for abutting against the clamping connector in the process of inserting the first connecting piece into the jack so that the clamping connector moves to the second position until the clamping connector is opposite to the limiting groove and moves to the first position.

3. The connection device according to claim 2, wherein,

the first connecting piece comprises a first abutting end which is used for abutting against the clamping connector, the end face of the first abutting end comprises a first arc surface, and the first abutting end abuts against the clamping connector through the first arc surface; and/or the number of the groups of groups,

the clamping connector comprises a second abutting end which is used for being abutted with the first connecting piece, the end face of the second abutting end comprises a second arc surface, and the second abutting end is abutted with the first connecting piece through the second arc surface.

4. The connection device according to claim 2, wherein,

the locking piece further comprises a pressing head connected to the other end of the main body, and when the locking piece is in the first position, the pressing head protrudes out of the surface of the second connecting piece and is used for receiving pressing force so that the clamping connector moves from the first position to the second position.

5. The connection device according to claim 2, wherein,

the first connecting piece is provided with a plugging direction for being plugged into the jack;

the transverse width of the first connecting piece is gradually reduced along the plugging direction;

the transverse width of the jack is gradually reduced along the plugging direction;

when the first connecting piece is inserted into the jack, the side face of the first connecting piece is attached to the inner side wall face of the jack.

6. The connection device according to claim 5, wherein,

the first connecting piece comprises a big head end and a small head end which are far away from each other;

the limiting groove comprises a first groove wall surface and a second groove wall surface which are oppositely arranged along the plugging direction, the first groove wall surface is close to the small head end, and the first groove wall surface is obliquely arranged in a direction away from the second groove wall surface;

the surface of the clamping joint corresponding to the first groove wall surface is a first inclined surface, and the inclined direction of the first inclined surface is matched with the inclined direction of the first groove wall surface;

the first inclined surface is used for being connected with the first groove wall surface in a sliding manner in the process of clamping the clamping connector into the limiting groove, so that the clamping connector drives the second connecting piece to move towards the direction of the big end;

when the first connecting piece is inserted into the jack, the wall surface of the first slot is abutted against the first inclined surface, so that the clamping connector drives the second connecting piece to cling to the first connecting piece.

7. The connection device according to claim 6, wherein,

the second connecting piece is provided with a chute which extends along the direction from the first position to the second position, and the chute is communicated with the jack;

the main body is connected in the chute in a sliding way through the elastic piece;

the clamping connector comprises a mounting surface which is opposite to the first inclined surface, and the mounting surface is abutted to the groove wall surface of the sliding groove and can slide relatively.

8. The connection device according to claim 7, wherein,

the second connecting piece comprises a body and a cover body detachably connected with the body;

the sliding chute and the jack are respectively arranged on the body;

the cover body covers the sliding groove.

9. The connection device according to claim 5, wherein,

two opposite side surfaces of the first connecting piece respectively comprise a second inclined surface, and the two second inclined surfaces are respectively inclined towards the middle part of the first connecting piece;

the two opposite inner side wall surfaces of the jack comprise third inclined surfaces, and the inclined direction of the third inclined surfaces is matched with the inclined direction of the corresponding second inclined surfaces;

when the first connecting piece is inserted into the jack, the second inclined surface is abutted with the third inclined surface.

10. A three-dimensional printer, comprising: the connection device of any one of claims 1 to 9.