Nozzle module and three-dimensional printer

Abstract

The invention relates to a nozzle module and a three-dimensional printer. The nozzle module comprises a heat dissipation assembly; the locking assembly comprises a clamping ring piece fixed to the heat dissipation assembly and a knob piece connected to the clamping ring piece, the clamping ring piece is provided with a clamping hole and an opening which penetrate through the clamping ring piece in the first direction, and the opening communicates with the clamping hole; the nozzle assembly sequentially penetrates through the clamping hole and the heat dissipation assembly in the first direction; wherein the knob part can rotate relative to the clamping ring part, and under the condition that the knob part rotates relative to the clamping ring part, the width of the opening is selectively decreased or increased, so that the clamping ring part clamps or releases the nozzle assembly. Quick mounting and quick dismounting can be achieved, mounting and dismounting are convenient, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional printing, and in particular to a nozzle module and a three-dimensional printer. Background Art

[0002] Fused Deposition Modeling (FDM) is a method of heating and melting filaments and then printing and stacking them layer by layer to form a three-dimensional object.

[0003] When the nozzle of a 3D printer is clogged, the nozzle needs to be removed from the 3D printer, cleaned and reinstalled. If the nozzle is severely clogged, it may even need to be replaced. Therefore, the convenience of nozzle removal and installation is very important.

[0004] In the related art, the nozzles often do not have a quick-release function. Even if some nozzles can achieve quick release, the disassembly process is cumbersome and requires the use of other tools to achieve quick release, which seriously affects the loading and unloading efficiency. Summary of the invention

[0005] The embodiments of the present application provide a nozzle module and a three-dimensional printer, which can not only achieve quick installation and quick disassembly, but also facilitate installation and disassembly, thereby improving loading and unloading efficiency.

[0006] In a first aspect, the nozzle module provided in the embodiment of the present application includes:

[0007] Heat dissipation components;

[0008] A locking assembly, comprising a clamping ring fixed to the heat dissipation assembly and a knob connected to the clamping ring, wherein the clamping ring has a clamping hole and an opening penetrating therethrough in a first direction, and the opening is connected to the clamping hole; and

[0009] A nozzle assembly is sequentially inserted into the clamping hole and the heat dissipation assembly along the first direction;

[0010] The knob is rotatable relative to the clamping ring. When the knob is rotated relative to the clamping ring, the width of the opening is selectively reduced or increased, so that the clamping ring clamps or releases the nozzle assembly.

[0011] In some embodiments, the clamping ring is elastic, and when the knob is rotated relative to the clamping ring to increase the width of the opening, the nozzle assembly can be detached from the clamping ring under the action of its own weight.

[0012] In some embodiments, the clamping ring has two fixed abutting portions disposed on both sides of the opening in a second direction perpendicular to the first direction, wherein the second direction is a width direction of the opening;

[0013] The knob comprises a rotation abutting portion corresponding to the fixed abutting portion, the rotation abutting portion has a first matching surface, and the fixed abutting portion has a second matching surface abutting against the corresponding first matching surface in the second direction;

[0014] The rotating abutting portion can rotate relative to the fixed abutting portion, so that the first matching surface presses or releases the corresponding second matching surface along the second direction, thereby causing the clamping ring to clamp or release the nozzle assembly.

[0015] In some embodiments, the first mating surface is a cam surface;

[0016] Alternatively, the first mating surface and the second mating surface are wedge-shaped surfaces that fit together.

[0017] In some embodiments, the two fixed abutting portions are respectively a first fixed abutting portion and a second fixed abutting portion;

[0018] The knob member includes a rotation abutment portion, which is arranged on a side of the first fixed abutment portion away from the second fixed abutment portion, and an end surface of the first fixed abutment portion away from the second fixed abutment portion is configured as the second mating surface.

[0019] In some embodiments, the first mating surface is a cam surface, the central axis of the cam surface is eccentrically arranged relative to a first axis perpendicular to the second direction, and the relative position of the first axis and the second fixed abutting portion is fixed;

[0020] The knob can rotate around the first axis to allow the first mating surface to press or release the second mating surface along the second direction.

[0021] In some embodiments, the locking assembly further includes a first connecting member, the first connecting member including a first rod portion extending along the second direction and a first flange portion formed at one end of the first rod portion, the other end of the first rod portion sequentially passing through the second fixed abutting portion and the first fixed abutting portion and connected to the rotating abutting portion;

[0022] Wherein, one end of the second fixed abutting portion facing away from the first fixed abutting portion in the second direction abuts against the first flange portion, and the rotatable abutting portion can rotate around the first axis relative to the first rod portion.

[0023] In some embodiments, the rotation abutting portion is provided with a first assembly hole with the first axis as an axis, and the rotation abutting portion is further provided with an avoidance groove arranged around the first axis and connected to the first assembly hole;

[0024] The locking assembly further includes a second connecting member, and the second connecting member is inserted into the first assembly hole;

[0025] The first connecting member is inserted into the avoiding groove and is fixed to the second connecting member.

[0026] In some embodiments, a second assembly hole extending in the radial direction of the second connection member is formed on the circumference of the second connection member, the first connection member is threadedly connected to the second assembly hole, and the second connection member is further formed with a third assembly hole having the first axis as an axis, and the third assembly hole is connected to the second assembly hole;

[0027] The locking assembly further includes a fastener threadedly connected to the third assembly hole, and the fastener is used to tightly press against the first connecting member connected to the second assembly hole.

[0028] In some embodiments, the knob member includes two rotating abutment portions spaced apart in the second direction, the two fixed abutment portions are located between the two rotating abutment portions, and at least one of the two rotating abutment portions can squeeze or release the corresponding fixed abutment portion along the second direction to make the two fixed abutment portions approach or move away from each other along the second direction.

[0029] In some embodiments, the first mating surface and the second mating surface are both wedge-shaped surfaces arranged around a second axis parallel to the second direction and extending obliquely in the second direction;

[0030] The knob can rotate around the second axis to allow the first mating surface to press or release the second mating surface along the second direction.

[0031] In some embodiments, the rotation abutting portion has a plurality of the first mating surfaces arranged around the second axis, and two adjacent first mating surfaces are connected by a first transition surface;

[0032] The fixed abutting portion has a plurality of second matching surfaces arranged around the second axis, and two adjacent second matching surfaces are connected by a second transition surface.

[0033] In some embodiments, the fixed abutting portion has a receiving hole arranged facing the rotating abutting portion and having the second axis as the axis, the second mating surface is formed on the bottom surface of the receiving hole, and the rotating abutting portion is rotatably connected in the receiving hole.

[0034] In some embodiments, the knob further includes two first connecting arms spaced apart and symmetrically arranged in the second direction and a second connecting arm connected to one end of the two connecting arms, and the rotation supporting portion is respectively fixed to the other ends of the two first connecting arms.

[0035] In some embodiments, the locking assembly further includes two third connecting members symmetrically arranged in the second direction;

[0036] The third connecting member includes a second rod portion with the second axis as an axis and a second flange portion formed at one end of the second rod portion, and the other end of the second rod portion is passed through the corresponding rotating abutment portion and fixed to the corresponding fixed abutment portion;

[0037] The rotating abutting portion abuts against the second flange portion at one side thereof in the second direction away from the fixed abutting portion.

[0038] In some embodiments, the rotating abutting portion is a split structure, and the rotating abutting portion includes a detachably fixed first connecting portion and a first matching portion, the first connecting portion is fixed to the corresponding first connecting arm, and the first matching surface is formed on the first matching portion;

[0039] Alternatively, the rotation abutting portion is an integrated structure.

[0040] In some embodiments, the fixed abutting portion is a split structure, and the fixed abutting portion includes a detachably fixed second connecting portion and a second matching portion, the second connecting portion is fixed to one side of the opening, and the second matching surface is formed on the second matching portion;

[0041] Alternatively, the fixed supporting portion is an integrated structure.

[0042] In some embodiments, the clamping ring further comprises a ring portion and two fixing portions symmetrically arranged with respect to the ring portion;

[0043] The ring portion has the clamping hole and the opening;

[0044] One end of the fixing portion is formed on the ring portion, the other end of the fixing portion extends along the circumference of the ring portion with a gap between the fixing portion and the ring portion, and the other end of the fixing portion is detachably fixed to the heat dissipation assembly.

[0045] In some embodiments, the heat dissipation assembly includes a heat dissipation member, two heat insulation members, and two fixing members;

[0046] The two heat insulating members are symmetrically arranged on both sides of the heat dissipating member in a second direction perpendicular to the first direction, and the fixing member is sequentially passed through the corresponding fixing portion and the heat insulating member and fixed to the heat dissipating member;

[0047] The nozzle assembly is disposed through the heat sink.

[0048] In some embodiments, the nozzle assembly includes a throat fitting, a heat-conducting pipe fitting and a nozzle fitting connected in sequence in the first direction, the throat fitting is passed through the heat dissipation assembly, and the nozzle assembly also includes a locking pipe fitting fixed to the outer periphery of the heat-conducting pipe fitting, and the locking pipe fitting is passed through the clamping hole.

[0049] In some embodiments, the nozzle module further includes a heating component, and the heating component is sleeved outside the heat-conducting pipe.

[0050] In some embodiments, the heat-conducting pipe member includes a pipe portion and a third flange portion protruding from the pipe portion in a circumferential direction, and the third flange portion is disposed at one end of the pipe portion close to the nozzle member;

[0051] The locking pipe is threadedly connected to an end of the pipe away from the third flange;

[0052] The heating component is arranged between the third flange portion and the locking pipe.

[0053] In a second aspect, a 3D printer provided in an embodiment of the present application includes a nozzle module provided in any of the above embodiments.

[0054] Compared with the prior art, the beneficial features of the embodiments of the present application are as follows: the nozzle module and the three-dimensional printer, the nozzle module includes a heat dissipation component, a locking component and a nozzle component, the locking component includes a clamping ring fixed to the heat dissipation component and a knob connected to the clamping ring, the clamping ring has a clamping hole and an opening penetrating therethrough in a first direction, and the opening is connected to the clamping hole; the nozzle component is sequentially penetrated in the clamping hole and the heat dissipation component along the first direction; wherein the knob can rotate relative to the clamping ring, and when the knob rotates relative to the clamping ring, the width of the opening is selectively reduced or increased, so that the clamping ring clamps or releases the nozzle component; through the embodiments of the present application, rotating the knob can reduce the width of the opening, so that the nozzle component can be clamped in the clamping hole of the clamping ring, and quick installation can be achieved, and the installation process is simple, without the aid of other tools, thereby improving the installation efficiency; conversely, rotating the knob in the opposite direction can also increase the width of the opening, so that the clamping ring can release the nozzle component, thereby achieving quick disassembly, and the disassembly process is simple, without the aid of other tools, thereby improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1This is a schematic diagram of the three-dimensional structure of the nozzle module of Example 1 of the present application;

[0056] Figure 2 This is a schematic diagram of the nozzle module structure of Example 1 of the present application;

[0057] Figure 3 for Figure 2 Left view of

[0058] Figure 4 for Figure 2 Bottom view of

[0059] Figure 5 for Figure 4 AA section view;

[0060] Figure 6 for Figure 4 BB cross-sectional view;

[0061] Figure 7 This is a structural schematic diagram of a nozzle module in a first embodiment of the present application when the locking assembly is in an up state;

[0062] Figure 8 This is a structural schematic diagram of a nozzle module in a first embodiment of the present application when the locking assembly is in a lowered state;

[0063] Fig. 9 This is an exploded view of a locking assembly in a nozzle module according to an embodiment of the present application;

[0064] Fig.10 This is a schematic diagram of the three-dimensional structure of the nozzle module of the second embodiment of the present application;

[0065] Fig.11 This is a schematic diagram of the nozzle module of the second embodiment of the present application;

[0066] Fig.12 for Fig.11 CC section view;

[0067] Fig.13 for Fig.11 DD cross-sectional view;

[0068] Fig.14 for Fig.11 Left view of

[0069] Fig.15 for Fig.14 EE cross-sectional view;

[0070] Fig.16 This is a structural schematic diagram of the nozzle module in the second embodiment of the present application when the locking assembly is in the up state;

[0071] Fig.17 This is an exploded view of the locking assembly in the nozzle module of the second embodiment of the present application;

[0072] Fig.18 for Fig.17 A magnified view of the local structure;

[0073] Fig.19 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the second embodiment of the present application is in a lowered state;

[0074] Fig. 20 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the second embodiment of the present application is in the up state;

[0075] Fig.21 This is a schematic diagram of the structure of the first matching part in the nozzle module of the second embodiment of the present application;

[0076] Fig. 22 for Fig.21 A schematic diagram of the first matching portion from another perspective shown;

[0077] Fig.23 for Fig. 22 A top view of

[0078] Fig.24 This is a schematic diagram of the structure of the second matching part in the nozzle module of the second embodiment of the present application;

[0079] Fig.25 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the second embodiment of the present application is in the up state;

[0080] Fig.26 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the second embodiment of the present application is in a lowered state;

[0081] Fig. 27 This is a schematic diagram of the structure of the nozzle assembly in the nozzle module of the embodiment of the present application;

[0082] Fig.28 for Fig. 27 FF cross-sectional view;

[0083] Wherein: 1-heat dissipation assembly (101-heat dissipation member, 102-heat insulation member, 103-fixing member), 2-locking assembly (201-clamping ring member (2011-clamping hole, 2012-opening, 2013-fixed abutment portion (2013a-first fixed abutment portion, 2013b-second fixed abutment portion, 20131-body (201311-embedded recess), 20132-second mating surface, 20133-second transition surface, 20134-receiving hole, 20135-second connecting portion (201351-second limiting concave portion), 20136-second matching portion (201361-second limiting convex portion)), 2014-ring portion, 2015-fixing portion), 202-knob member (2021-rotation abutment portion (20211-first matching surface, 20212-first assembly hole, 20213-avoidance groove, 20214-first transition surface, 20215-first connecting portion (202151-first Limiting concave portion), 20216-first matching portion (202161-first limiting convex portion), 2022-handle portion, 2023-first connecting arm, 2024-second connecting arm), 203-gasket, 204-first connecting member (2041-first rod portion, 2042-first flange portion), 205-second connecting member (2051-second assembly hole, 2052-third assembly hole), 206-fastener, 207-third connecting member (2071- second rod portion, 2072-second flange portion)), 3-nozzle assembly (301-throat fitting, 302-heat conducting pipe fitting (3021-pipe portion, 3022-third flange portion (30221-mounting hole)), 303-nozzle fitting, 304-locking pipe fitting, 305-heat dissipation pipe fitting), 4-heating assembly (401-heating element, 402-protective shell, 403-temperature sensor), 5-pressure collection element, 6-limiting element, 7-first axis, 8-second axis. DETAILED DESCRIPTION

[0084] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0085] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0086] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0087] Please refer to Figures 1 to 28 The nozzle module of the embodiment of the present application includes a heat dissipation component 1, a locking component 2 and a nozzle component 3. The locking component 2 includes a clamping ring 201 and a knob 202, wherein the clamping ring 201 is fixed to the heat dissipation component 1, and the knob 202 is rotatably connected to the clamping ring 201. The clamping ring 201 has a clamping hole 2011 and an opening 2012, and the clamping hole 2011 and the opening 2012 both penetrate the clamping ring 201 in the first direction, and the opening 2012 is connected to the clamping hole 2011. The nozzle component 3 is sequentially penetrated in the clamping hole 2011 and the heat dissipation component 1 along the first direction. The knob 202 can rotate relative to the clamping ring 201 in the S direction, and the knob 202 can also rotate relative to the clamping ring 201 in the N direction, and the N direction is the opposite direction of the S direction. During the process of the knob 202 rotating relative to the clamping ring 201 along the S direction, the width of the opening 2012 gradually decreases, so that the aperture of the clamping hole 2011 gradually decreases, so that the clamping ring 201 can gradually clamp the nozzle assembly 3. When the knob 202 rotates along the S direction to the upper state, the nozzle assembly 3 is clamped in the clamping hole 2011 by the clamping ring 201. Figure 7 and Fig.16 As shown. During the rotation of the knob 202 relative to the clamping ring 201 along the N direction, the width W1 of the opening 2012 gradually increases, and the aperture of the clamping hole 2011 gradually increases, so that the clamping ring 201 can gradually release the nozzle assembly 3. Please refer to Figure 8 As shown, when the knob 202 is rotated in the N direction to a lowered state, the clamping ring 201 can release the nozzle assembly 3, making it convenient for the user to remove the nozzle assembly 3 from the nozzle module.

[0088] In the embodiment of the present application, the width W1 of the opening 2012 can be changed by rotating the knob 202, thereby changing the aperture of the clamping hole 2011, so that the clamping ring 201 can clamp or release the nozzle assembly 3 inserted in the clamping hole 2011, which can not only achieve one-twist quick installation and one-twist quick removal, but also the installation and removal processes are simple and do not require other tools, thereby improving the installation and removal efficiency. In addition, the locking assembly 2 can securely fix the nozzle assembly 3 to the heat dissipation assembly 1, solving the problem of the nozzle assembly 3 rotating and / or moving up and down during the movement, and realizing the reliable fixation of the nozzle assembly 3.

[0089] In some embodiments, the clamping ring 201 is elastic. Therefore, when the knob 202 is rotated relative to the clamping ring 201 to increase the width W1 of the opening 2012, the nozzle assembly 3 can be separated from the connection with the clamping ring 201 under the action of its own gravity, thereby effectively preventing the clamping ring 201 from still clamping the nozzle assembly 3 when the knob 202 is rotated to the lowered state, further ensuring that the nozzle module can be quickly disassembled, thereby improving the disassembly efficiency.

[0090] In some embodiments, when the clamping ring 201 clamps the nozzle assembly 3, the opening 2012 still has a certain width. That is, in this embodiment, rotating the knob 202 along the S direction can change the width W1 of the opening 2012, but the opening 2012 will not be completely closed, thereby reserving a certain amount of deformation, which can avoid the opening 2012 being closed before the knob 202 is rotated into place, resulting in the inability to effectively clamp the nozzle assembly 3, thereby improving the reliability of the nozzle module, and allowing the clamping ring 201 to clamp the nozzle assembly 3 more effectively.

[0091] In some embodiments, the clamping ring 201 has two fixed abutting portions 2013 disposed opposite to each other, and the two fixed abutting portions 2013 are disposed on both sides of the opening 2012 in the second direction, wherein the second direction is perpendicular to the first direction and is the width direction of the opening 2012. The knob 202 includes a rotating abutting portion 2021, and the rotating abutting portion 2021 is disposed corresponding to the fixed abutting portion 2013. The rotating abutting portion 2021 has a first mating surface 20211, and the fixed abutting portion 2013 has a second mating surface 20132, and the first mating surface 20211 and the second mating surface 20132 can abut against each other in the second direction. When the rotating abutting portion 2021 rotates relative to the fixed abutting portion 2013 along the S direction, the first mating surface 20211 presses the second mating surface 20132 along the second direction, so that the width W1 of the opening 2012 and the aperture of the clamping hole 2011 are reduced. When the rotating abutting portion 2021 rotates along the N direction relative to the fixed abutting portion 2013, the first mating surface 20211 releases the second mating surface 20132 along the second direction. Releasing the second mating surface 20132 along the second direction means reducing or releasing the constraint of the first mating surface 20211 on the second mating surface 20132 in the second direction, so that the second mating surface 20132 can gradually return to the position where the second mating surface 20132 is located when the second mating surface 20132 is in the lowered state. Therefore, the first mating surface 20211 releases the second mating surface 20132 along the second direction, which can increase the width W1 of the opening 2012 and the aperture of the clamping hole 2011, thereby allowing the nozzle assembly 3 to be detached from the clamping ring 201 under the action of its own gravity, making it easier for the user to remove the nozzle assembly 3 from the nozzle module.

[0092] As an example, the first mating surface 20211 can be a cam surface, please refer to Figure 3 as well as Figures 7 to 9 Alternatively, the first mating surface 20211 and the second mating surface 20132 may be wedge-shaped surfaces that fit together, see Figures 17 to 26 Alternatively, the first mating surface 20211 and the second mating surface 20132 may also be in other shapes, which can be set according to actual conditions.

[0093] In some embodiments, please refer to Figures 1 to 9 In the embodiment shown, the knob 202 includes a rotation abutment 2021, and the two fixed abutment 2013 are respectively a first fixed abutment 2013a and a second fixed abutment 2013b. The rotation abutment 2021 is arranged on a side of the first fixed abutment 2013a away from the second fixed abutment 2013b, and the end surface of the first fixed abutment 2013a away from the second fixed abutment 2013b is configured as a second mating surface 20132.

[0094] In this embodiment, when the knob 202 rotates along the S direction to Figure 7 In the process of the pull-up state shown in the figure, the first mating surface 20211 of the fixed abutting portion 2013 can press the second mating surface 20132 of the first fixed abutting portion 2013a along the second direction, so that the first fixed abutting portion 2013a moves toward the second fixed abutting portion 2013b along the second direction to reduce the width W1 of the opening 2012 in the second direction, so that the clamping ring 201 can apply pressure to the nozzle assembly 3 to clamp the nozzle assembly 3. Figure 8 During the lowered state shown in the figure, the knob 202 can release the first fixed abutment 2013a in the second direction, so that the first fixed abutment 2013a moves away from the second fixed abutment 2013b along the second direction to increase the width W1 of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to release the nozzle assembly 3, making it easier for the user to remove the nozzle assembly 3 from the nozzle module.

[0095] As an implementation, please refer to Figures 7 to 9, the first mating surface 20211 can be a cam surface, and the central axis of the cam surface is eccentrically arranged relative to the first axis 7. The first axis 7 is perpendicular to the second direction, and the relative position of the first axis 7 and the second fixed abutting portion 2013b is fixed. In other words, the second fixed abutting portion 2013b remains stationary, and the first fixed abutting portion 2013a can move along the second direction. When the knob 202 rotates along the S direction around the first axis 7, the first mating surface 20211 presses the second mating surface 20132 along the second direction, so that the first fixed abutting portion 2013a can move toward the second fixed abutting portion 2013b in the second direction. When the knob 202 rotates along the N direction around the first axis 7, the first mating surface 20211 releases the second mating surface 20132 along the second direction, so that the first fixed abutting portion 2013a can move away from the second fixed abutting portion 2013b in the second direction.

[0096] The working principle of this embodiment is as follows: when the knob 202 rotates along the S direction to Figure 7 In the pulled-up state shown in the figure, the distance between the first axis 7 and the second fixed abutment 2013b is at or close to the maximum value. Since the relative positions of the first axis 7 and the second fixed abutment 2013b are fixed, that is, the distance between the first axis 7 and the first fixed abutment 2013a in the second direction is fixed. Therefore, at this time, the spacing between the first fixed abutment 2013a and the second fixed abutment 2013b in the second direction is at or close to the minimum value, that is, the width W1 of the opening 2012 in the second direction is at or close to the minimum value, and the nozzle assembly 3 is clamped in the clamping hole of the locking assembly 2. When the knob 202 is rotated along the N direction to Figure 8 In the lowered state shown, the distance between the first axis 7 and the second fixed abutting portion 2013b is at or close to the minimum value. Since the distance between the first axis 7 and the first fixed abutting portion 2013a in the second direction is fixed, the spacing between the first fixed abutting portion 2013a and the second fixed abutting portion 2013b in the second direction is at or close to the maximum value, that is, the width W1 of the opening 2012 in the second direction is at or close to the maximum value. At this time, the locking assembly 2 releases the nozzle assembly 3, and the user can remove the nozzle assembly 3 from the nozzle structure. It can be understood that in other embodiments, the rotating abutting portion 2021 can also be other structures, as long as the rotating abutting portion 2021 can squeeze or release the first fixed abutting portion 2013a in the second direction, which will not be described in detail here.

[0097] In this embodiment, the first axis 7 is perpendicular to the second direction, which not only facilitates the rotation of the knob 202, but also avoids the knob 202 from interfering with other environmental elements when the knob 202 is rotated, making the spatial layout more reasonable and the structure simpler. Figure 4 and Figure 6 As shown, the first axis 7 may be perpendicular to the first direction and the second direction. Alternatively, the first axis 7 may also be parallel to the first direction.

[0098] It should be noted that, in other embodiments, the first axis 7 may also be perpendicular to the second direction in other directions, or the first axis 7 may not be perpendicular to the second direction. It can be set according to actual conditions and will not be elaborated here.

[0099] As an embodiment, the locking assembly 2 may further include a gasket 203, which is arranged between the knob 202 and the clamping ring 201, and the gasket 203 is fixed to the clamping ring 201, and a second mating surface 20132 may be formed on the side of the gasket 203 facing the knob 202. The gasket 203 may effectively protect the clamping ring 201, and prevent the clamping ring 201 from being frequently damaged by friction after long-term use, thereby extending the service life of the clamping ring 201 and reducing the use cost.

[0100] In some examples, the gasket 203 may be made of brass. The brass gasket 203 has good metal lubricity, so that the knob 202 can withstand frequent friction during rotation, thereby extending the service life of the knob 202 and reducing the cost of use.

[0101] For some examples, see Fig. 9 As shown, the gasket 203 can be used as a part of the first fixed abutting portion 2013a. Specifically, the first fixed abutting portion 2013a can include the gasket 203 and the body 20131, wherein the body 20131 is fixed to one side of the opening 2012, the gasket 203 and the body 20131 are detachably connected, and the gasket 203 is cushioned between the body 20131 and the body 20131. When the gasket 203 is frequently subjected to friction and is damaged, the gasket 203 can be replaced without replacing the entire clamping ring 201, thereby reducing the use cost.

[0102] As an example, please refer to Figure 3 As shown, the side surface of the gasket 203 facing the rotation abutment 2021, that is, the second mating surface 20132, can be constructed as an arc surface. The arc-shaped second mating surface 20132 can effectively increase the contact area between the gasket 203 and the rotation abutment 2021, so that the rotation abutment 2021 and the gasket 203 are subjected to more uniform and dispersed forces, further extending the service life of the overall structure.

[0103] As an example, the gasket 203 can be partially embedded in the main body 20131, and the main body 20131 is provided with an embedding recess 201311 that cooperates with the gasket 203, thereby improving the connection stability between the gasket 203 and the main body 20131, avoiding the movement of the gasket 203 relative to the main body 20131, and improving the stability of the overall structure.

[0104] As an embodiment, the knob 202 further includes a handle 2022, which is convexly disposed on the rotating abutting portion 2021 in the circumferential direction. The user can rotate the handle 2022 to rotate the rotating abutting portion 2021, thereby realizing one-twist quick installation and one-twist quick removal, which is convenient to use. In other embodiments, the handle 2022 can also be fixed to other positions of the rotating abutting portion 2021, which can be set according to actual conditions, and will not be described in detail here.

[0105] As an implementation, please refer to Figures 1 to 4 ,as well as Figures 6 to 9 As shown, the locking assembly 2 further includes a first connecting member 204. The first connecting member 204 includes a first rod portion 2041 and a first flange portion 2042. The first rod portion 2041 extends along the second direction. The first flange portion 2042 is formed at one end of the first rod portion 2041 in the second direction. The other end of the first rod portion 2041 in the second direction is sequentially inserted through the second fixed abutting portion 2013b and the first fixed abutting portion 2013a and then connected to the rotating abutting portion 2021. Among them, one end of the second fixed abutting portion 2013b that is away from the first fixed abutting portion 2013a in the second direction abuts against the first flange portion 2042. The rotating abutting portion 2021 can rotate around the first axis 7 relative to the first rod portion 2041, and the rotating abutting portion 2021 is rotatably connected to the clamping ring 201 through the first connecting member 204.

[0106] In this embodiment, the rotatable supporting portion 2021 is rotatably connected to one end of the first rod portion 2041 in the second direction, and the other end of the first rod portion 2041 in the second direction has a first flange portion 2042. The end of the second fixed supporting portion 2013b that is away from the first fixed supporting portion 2013a in the second direction abuts against the first flange portion 2042, thereby effectively limiting the distance between the first axis 7 and the second fixed supporting portion 2013b, thereby ensuring the stability of the overall structure.

[0107] As an embodiment, the rotation abutting portion 2021 is provided with a first assembly hole 20212, and the first assembly hole 20212 takes the first axis 7 as an axis. The rotation abutting portion 2021 is also provided with an avoidance groove 20213, which is arranged around the first axis 7, and the avoidance groove 20213 is connected to the first assembly hole 20212. The locking assembly 2 also includes a second connecting member 205, and the second connecting member 205 is inserted into the first assembly hole 20212. The first rod portion 2041 of the first connecting member 204 is inserted into the avoidance groove 20213 and fixed to the second connecting member 205. When the knob 202 rotates around the first axis 7, under the action of the first connecting member 204, the second connecting member 205 remains stationary, that is, the knob 202 and the second connecting member 205 are rotatably connected, and the knob 202 can rotate around the first axis 7 relative to the second connecting member 205.

[0108] As an embodiment, the second connecting member 205 is detachably fixed to the first connecting member 204. After a single part in the locking assembly 2 is worn, the first connecting member 204 can be removed to facilitate replacement of damaged parts, thereby extending the service life of the nozzle module and reducing the cost of use.

[0109] In some examples, the second connector 205 is threadedly connected to the first connector 204. The second connector 205 is provided with a second assembly hole 2051, which is a threaded hole. The second assembly hole 2051 is provided in the circumferential direction of the second connector 205, and the second assembly hole 2051 extends in the radial direction of the second connector 205. The first connector 204 is threadedly connected to the second assembly hole 2051, which is convenient for installation and disassembly and more convenient to use.

[0110] As an example, the second connecting member 205 is further provided with a third assembly hole 2052, which is a threaded hole. The third assembly hole 2052 takes the first axis 7 as an axis, and the third assembly hole 2052 is connected to the second assembly hole 2051. The locking assembly 2 also includes a fastener 206, which is threadedly connected in the third assembly hole 2052, and the fastener 206 can be tightly connected to the first connecting member 204 connected to the second assembly hole 2051. During assembly, the first connecting member 204 can be first screwed into the second assembly hole 2051 of the second connecting member 205, and the first connecting member 204 can be extended into or passed through the third assembly hole 2052, and then the fastener 206 can be screwed into the third assembly hole 2052 until the end of the fastener 206 is tightly against the outer periphery of the first connecting member 204. The fastener 206 can effectively fix the first connecting member 204 and the second connecting member 205 to prevent the first connecting member 204 and the second connecting member 205 from rotating relative to each other after long-term use, thereby improving the stability and assembly reliability of the nozzle module.

[0111] In other embodiments, please refer to Figures 10 to 26 In the illustrated embodiment, the knob 202 includes two rotating abutting portions 2021, which are spaced apart in the second direction. Two fixed abutting portions 2013 are located between the two rotating abutting portions 2021, and at least one of the two rotating abutting portions 2021 can press or release the corresponding fixed abutting portion 2013 along the second direction, so that the two fixed abutting portions 2013 move closer to or farther from each other along the second direction.

[0112] As an example, please refer to Fig.16 , the two rotating abutting portions 2021 can remain relatively fixed, that is, the two rotating abutting portions 2021 rotate synchronously. The two rotating rotating abutting portions 2021 can simultaneously squeeze or release the corresponding fixed abutting portions 2013, so that the two fixed abutting portions 2013 are close to or away from each other along the second direction. Specifically, when the knob 202 rotates along the S direction, the two rotating abutting portions 2021 can simultaneously squeeze the corresponding fixed abutting portions 2013, so that the two fixed abutting portions 2013 move toward each other in the second direction to reduce the width W1 of the opening 2012 and the aperture of the clamping hole 2011, so that the clamping ring 201 can clamp the nozzle assembly 3. When the knob 202 rotates along the N direction, the two rotating abutting portions 2021 can simultaneously release the corresponding fixed abutting portions 2013, so that the two fixed abutting portions 2013 can move backwards in the second direction to increase the width W1 of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to release the nozzle assembly 3, which is easy to operate and can effectively achieve quick installation and quick disassembly.

[0113] As an implementation, please refer to Figures 17 to 26 As shown, the first mating surface 20211 is a wedge-shaped surface, also a wedge-shaped surface. The first mating surface 20211 is arranged facing the corresponding second mating surface 20132 in the second direction, and is arranged around the second axis 8, wherein the second axis 8 is parallel to the second direction, and the first mating surface 20211 also extends obliquely in the second direction. The second mating surface 20132 is arranged facing the corresponding first mating surface 20211 in the second direction, and the second mating surface 20132 is arranged around the second axis 8, and the second mating surface 20132 extends obliquely in the second direction.

[0114] In this embodiment, when the knob 202 is in the lowered state, at this time, point a of the first mating surface 20211 abuts against point b of the second mating surface 20132. Fig.19As shown, at this time, the width W2 of the combination of the rotating abutting portion 2021 and the fixed abutting portion 2013 in the second direction is the minimum value or close to the minimum value, and the width W1 of the opening 2012 in the second direction is the maximum value or close to the maximum value. During the rotation of the knob 202 along the S direction, point a of the first mating surface 20211 gradually moves away from point b, and the height difference between point a and point b in the second direction becomes larger and larger, and the width W2 of the combination of the rotating abutting portion 2021 and the fixed abutting portion 2013 in the second direction becomes larger and larger. Since the relative positions of the two rotating abutting portions 2021 of the knob 202 are fixed, that is, the distance between the two rotating abutting portions 2021 in the second direction is fixed. Therefore, during the rotation of the knob 202 along the S direction, the width W1 of the opening 2012 in the second direction becomes smaller and smaller. When the knob 202 is in the upward state, the height difference between point a and point b in the second direction reaches a maximum value or is close to a maximum value, and the width W2 of the combination of the rotating abutting portion 2021 and the fixed abutting portion 2013 in the second direction is a maximum value or is close to a maximum value. Fig. 20 As shown, that is, at this time, the width W1 of the opening 2012 in the second direction is the minimum value or close to the minimum value. Therefore, when the knob 202 rotates around the S direction, the first mating surface 20211 can squeeze the corresponding second mating surface 20132, so that the two fixed abutting portions 2013 move toward each other in the second direction to reduce the width W1 of the opening 2012 in the second direction, so that the clamping ring 201 can clamp the nozzle assembly 3. When the knob 202 rotates around the N direction, the first mating surface 20211 can release the corresponding second mating surface 20132, so that the two fixed abutting portions 2013 can move back in the second direction to increase the width W1 of the opening 2012 in the second direction, so that the clamping ring 201 can release the nozzle assembly 3.

[0115] As an example, please refer to Fig.17 , Fig.18 ,as well as Figure 21 to Figure 26 As shown, the rotating abutting portion 2021 may have a plurality of first mating surfaces 20211, all of which are arranged around the second axis 8, and two adjacent first mating surfaces 20211 are connected by a first transition surface 20214. Correspondingly, the fixed abutting portion 2013 may have a plurality of second mating surfaces 20132, all of which are arranged around the second axis 8, and two adjacent second mating surfaces 20132 are connected by a second transition surface 20133. The number of the first mating surfaces 20211 and the second mating surfaces 20132 is the same. Moreover, the first mating surfaces 20211 and the second mating surfaces 20132 are arranged in a one-to-one correspondence.

[0116] In this example, the rotating abutting portion 2021 has a plurality of first mating surfaces 20211, the fixed abutting portion 2013 has a corresponding number of second mating surfaces 20132, and the first mating surfaces 20211 abut against the corresponding second mating surfaces 20132. When the knob 202 is rotated, the clamping ring 201 is subjected to a more uniform and stable force, and the nozzle assembly 3 may be prevented from being pinched and damaged by excessive rotation of the knob 202. In addition, the plurality of first mating surfaces 20211 and second mating surfaces 20132 may effectively reduce the twisting angle of the knob 202 around the second axis 8, further improving the installation efficiency and disassembly efficiency, and making the operation more convenient.

[0117] The working principle of this example is as follows: when the knob 202 is rotated along the S direction to the pulled-up state, the matching state of the first matching surface 20211 and the second matching surface 20132 is as follows: Fig.25 As shown in FIG. 1 , the height difference H between the first mating surface 20211 and the second mating surface 20132 in the second direction is the maximum value or close to the maximum value. Since the relative positions of the two rotating abutting portions 2021 of the knob 202 are fixed, the width W1 of the opening 2012 in the second direction is the minimum value or close to the minimum value. At this time, the nozzle assembly 3 is clamped in the clamping hole of the locking assembly 2. When the knob 202 is rotated around the N direction to the lowered state, the mating state of the first mating surface 20211 and the second mating surface 20132 is as shown in FIG. Fig.26 As shown, the height difference H between the first mating surface 20211 and the second mating surface 20132 in the second direction is a minimum value or close to a minimum value. For example, the height difference H can be zero. At this time, the width W1 of the opening 2012 in the second direction is a maximum value or close to a maximum value. At this time, the locking assembly 2 releases the nozzle assembly 3, and the user can remove the nozzle assembly 3 from the nozzle structure.

[0118] For some examples, see Figure 21 to Figure 24 The rotating abutting portion 2021 can have three first mating surfaces 20211, and correspondingly, the fixed abutting portion 2013 can have three second mating surfaces 20132. This not only has a simple structure and is easy to produce, but also can make the force on the clamping ring 201 more uniform and stable, and effectively reduce the twisting angle of the knob 202.

[0119] It should be noted that, in other embodiments, the rotating abutting portion 2021 may also include one or other number of first mating surfaces 20211, and the fixed abutting portion 2013 may also include one or other number of second mating surfaces 20132, which can be set according to actual conditions and will not be elaborated here.

[0120] For some examples, see Fig. 22 , Fig.25 and Fig.26, the first transition surface 20214 can be a plane parallel to the second axis 8. The second transition surface 20133 can be a plane parallel to the second direction. When the knob 202 rotates along the N direction until the first transition surface 20214 abuts against the corresponding second transition surface 20133, the knob 202 can no longer continue to rotate along the N direction, which can effectively prompt the user that the nozzle assembly 3 has been released and the nozzle assembly 3 can be taken out from the locking assembly 2 and the heat dissipation assembly 1, which is more convenient to use and improves the user's experience.

[0121] As an implementation, please refer to Fig.12 , Fig.17 , Fig.18 as well as Fig.24 As shown, the fixed abutting portion 2013 has a receiving hole 20134, the receiving hole 20134 takes the second axis 8 as an axis, and the opening of the receiving hole 20134 faces the corresponding rotating abutting portion 2021, and the second matching surface 20132 is formed on the bottom surface of the receiving hole 20134. The rotating abutting portion 2021 is rotatably connected to the receiving hole 20134, and when the knob 202 rotates relative to the locking assembly 2, the rotating abutting portion 2021 rotates in the receiving hole 20134.

[0122] In this embodiment, the rotating abutting portion 2021 is accommodated in the fixed abutting portion 2013 , so that the rotating abutting portion 2021 and the fixed abutting portion 2013 can cooperate more stably and effectively.

[0123] As an implementation, please refer to Fig.11 , Fig.16 and Fig.17 As shown, the knob 202 further includes two first connecting arms 2023 and a second connecting arm 2024. The two first connecting arms 2023 are spaced apart and symmetrically arranged in the second direction, one end of the second connecting arm 2024 is connected to one end of one of the first connecting arms 2023, the other end of the second connecting arm 2024 is connected to one end of the other first connecting arm 2023, and the other ends of the two first connecting arms 2023 are respectively fixed with a rotation abutting portion 2021.

[0124] In this embodiment, the two first connecting arms 2023 are connected as one through the second connecting arm 2024, so that the relative positions of the two rotating abutting parts 2021 can be effectively fixed. When in use, the second connecting arm 2024 can be used as a handle, and the two rotating abutting parts 2021 can be rotated synchronously by rotating the second connecting arm 2024, so that the two rotating abutting parts 2021 squeeze or release the corresponding fixed abutting parts 2013 at the same time, thereby clamping or releasing the nozzle assembly 3. It is easy to use and can achieve one-twist quick installation and one-twist quick removal, which is not only convenient for operation, but also improves loading and unloading efficiency. In addition, the two rotating abutting parts 2021 are connected as one through the first connecting arm 2023 and the second connecting arm 2024, which can solve the problem of deflection of the knob 202 after long-term use, and achieve long-term use without changing the performance of the nozzle module.

[0125] As an embodiment, the locking assembly 2 further includes two third connecting members 207, which are symmetrically arranged in the second direction. The third connecting member 207 includes a second rod portion 2071 and a second flange portion 2072, wherein the second rod portion 2071 takes the second axis 8 as an axis, the second flange portion 2072 is formed at one end of the second rod portion 2071 in the second direction, the other end of the second rod portion 2071 in the second direction is penetrated through the corresponding rotating abutting portion 2021, and the other end of the second rod portion 2071 in the second direction is fixed to the corresponding fixed abutting portion 2013. In order to prevent the rotating abutting portion 2021 from detaching from the third connecting member 207, the rotating abutting portion 2021 abuts against the second flange portion 2072 on the side away from the fixed abutting portion 2013 in the second direction.

[0126] In this embodiment, the knob 202 is rotatably connected to the clamping ring 201 via the third connecting member 207, wherein the knob 202 can rotate relative to the third connecting member 207, and the third connecting member 207 is fixed to the clamping ring 201, which is not only simple in structure but also easy to install.

[0127] As an implementation mode, the third connecting member 207 can be detachably fixed to the clamping ring 201, so as to facilitate the disassembly of the locking assembly 2 and replace damaged parts separately.

[0128] As an example, the third connecting member 207 can be threadedly connected to the clamping ring 201. Specifically, the outer circumference of one end of the second rod 2071 connected to the clamping ring 201 can be provided with an external thread, and the fixed abutting portion 2013 can be provided with a threaded hole that matches the external thread, and the second rod 2071 is threadedly connected to the threaded hole, which is convenient for loading and unloading and more convenient to use.

[0129] It should be noted that the knob member 202 and / or the third connecting member 207 may also be connected to the clamping ring 201 in other ways, which may be configured according to actual conditions and will not be elaborated herein.

[0130] As an implementation, please refer to Fig.17 and Fig.18 As shown, the rotating abutting portion 2021 can be a split structure. Specifically, the rotating abutting portion 2021 can include a first connecting portion 20215 and a first matching portion 20216, and the first connecting portion 20215 and the first matching portion 20216 are detachably fixed. The first matching portion 20216 and the first connecting portion 20215 are both rotatably arranged on the third connecting member 207, wherein the first connecting portion 20215 is fixed to the corresponding first connecting arm 2023, the first matching portion 20216 rotates synchronously with the first connecting portion 20215, and the first matching surface 20211 and the first transition surface 20214 are formed on the first matching portion 20216. When the first matching surface 20211 and / or the first transition surface 20214 are worn due to long-term use, the first matching portion 20216 can be replaced separately, which reduces the use cost and prolongs the service life of the overall structure.

[0131] As an example, one of the first connecting part 20215 and the first matching part 20216 is provided with a first limiting protrusion, and the other of the first connecting part 20215 and the first matching part 20216 is provided with a first limiting recess. The first limiting protrusion and the first limiting recess are plugged into each other, which can effectively transmit the torque, so that the first matching part 20216 can rotate synchronously with the first connecting part 20215, thereby improving the reliability of the overall structure.

[0132] For some examples, see Fig.17 and Fig.18At least two first limiting protrusions 202161 uniformly distributed around the second axis 8 can be formed on the end of the first matching portion 20216 that is away from the fixed supporting portion 2013 in the second direction. Correspondingly, a first limiting recess 202151 corresponding to the first limiting protrusion 202161 is opened on the first connecting portion 20215. The first limiting protrusion 202161 is inserted into the corresponding first limiting recess 202151. The plug-in matching first limiting protrusion 202161 and the first limiting recess 202151 can make the first matching portion 20216 rotate synchronously with the first connecting portion 20215, the first connecting arm 2023 and the second connecting arm 2024, so that the first matching portion 20216 will not rotate around the second axis 8 relative to the first connecting portion 20215. Moreover, the first matching portion 20216 and the first connecting portion 20215 are abutted between the fixed supporting portion 2013 and the second flange portion 2072 in the second direction, which can effectively connect the first limiting protrusion 202161 and the first limiting recess 202151 and avoid the first limiting protrusion 202161 from detaching from the first limiting recess 202151.

[0133] It should be noted that, in other embodiments, the first connecting portion 20215 and the first matching portion 20216 may be detachably fixedly connected in other ways. Alternatively, the rotating abutting portion 2021 may also be an integrated structure. It can be set according to actual conditions and will not be described in detail here.

[0134] As an implementation, please refer to Fig.17 and Fig.18 As shown, the fixed abutting portion 2013 can be a split structure. Specifically, the fixed abutting portion 2013 can include a second connecting portion 20135 and a second matching portion 20136, and the second connecting portion 20135 and the second matching portion 20136 are detachably fixed. The second connecting portion 20135 and the second matching portion 20136 are both arranged in the third connecting member 207, and the second connecting portion 20135 and the second matching portion 20136 are relatively fixed to the third connecting member 207. Among them, the second connecting portion 20135 is fixed to one side of the opening 2012, and the second matching surface 20132, the second transition surface 20133 and the receiving hole 20134 are formed in the second matching portion 20136. When the second matching surface 20132 and / or the second transition surface 20133 are worn due to long-term use, the second matching portion 20136 can be replaced separately, which reduces the use cost and prolongs the service life of the overall structure.

[0135] As an example, one of the second connecting portion 20135 and the second matching portion 20136 is provided with a second limiting protrusion, and the other of the second connecting portion 20135 and the second matching portion 20136 is provided with a second limiting recess. The second limiting protrusion and the second limiting recess are plugged into each other, which can effectively fix the second matching portion 20136 and prevent the second matching portion 20136 from rotating with the first matching portion 20216, thereby improving the reliability of the overall structure.

[0136] For some examples, see Fig.17 and Fig.18 A second limiting protrusion 201361 extending perpendicularly to the second axis 8 can be formed on one end of the second matching portion 20136 which is away from the movable supporting portion in the second direction. Correspondingly, a second limiting recess 201351 which is plugged into and matched with the second limiting protrusion 201361 is formed on the second connecting portion 20135. The pluggable second limiting protrusion 201361 and the second limiting recess 201351 can keep the second matching portion 20136 and the second connecting portion 20135 fixed, so that the second matching portion 20136 will not rotate around the second axis 8 relative to the second connecting portion 20135. Moreover, the second connecting portion 20135 is provided with a threaded hole threadedly connected to the second rod portion 2071, and the second matching portion 20136 is abutted between the rotating abutting portion 2021 and the second connecting portion 20135, so that the second limiting protrusion 201361 and the second limiting recess 201351 can be effectively connected to avoid the second limiting protrusion 201361 from being detached from the second limiting recess 201351.

[0137] It should be noted that, in other embodiments, the second connecting portion 20135 and the second matching portion 20136 may be detachably fixedly connected in other ways. Alternatively, the fixed abutting portion 2013 may also be an integrated structure. It can be set according to actual conditions and will not be described in detail here.

[0138] It should be noted that, in other embodiments, the two rotating abutting portions 2021 can rotate simultaneously, but only one of the rotating abutting portions 2021 squeezes or releases the corresponding fixed abutting portion 2013, and the other rotating abutting portion 2021 does not squeeze or release the corresponding fixed abutting portion 2013 when rotating, so that one of the fixed abutting portions 2013 approaches or moves away from the other fixed abutting portion 2013 along the second direction.

[0139] For example, only one pair of the correspondingly arranged rotating abutting portions 2021 and the fixed abutting portions 2013 may be respectively provided with the first mating surface 20211 and the second mating surface 20132, while the other pair of the correspondingly arranged rotating abutting portions 2021 and the fixed abutting portions 2013 may not be provided with the first mating surface 20211 and the second mating surface 20132. The surfaces of the other pair of the correspondingly arranged rotating abutting portions 2021 and the fixed abutting portions 2013 abutting against each other in the second direction are planes perpendicular to the second axis 8, that is, the first mating surface 20211 and the second mating surface 20132 may be replaced by planes perpendicular to the second axis 8.

[0140] As an example, please refer to Fig.17 and Fig.18 As shown, the rotating abutment 2021 can be detachably fixed to the first connecting arm 2023. For example, the two are fixed by a threaded connector. According to actual needs, one pair of the rotating abutment 2021 and the fixed abutment 2013 having the first mating surface 20211 and the second mating surface 20132 can be replaced with the rotating abutment 2021 and the fixed abutment 2013 having the above-mentioned plane perpendicular to the second axis 8, which is more flexible to use and can adapt to nozzle assemblies 3 of more diameter sizes.

[0141] Alternatively, in other embodiments, the two rotating abutting portions 2021 may rotate separately, and the rotating rotating abutting portion 2021 may squeeze or release the corresponding fixed abutting portion 2013, so that the corresponding fixed abutting portion 2013 may approach or move away from the other fixed abutting portion 2013 along the second direction.

[0142] For example, you can remove Figures 1 to 9 In the embodiment shown in the figure, the first flange portion 2042 and the first connecting member 204 are symmetrically connected to two ends in the second direction. Figures 1 to 9 In the illustrated embodiment, the states of the two knob members 202 can be kept synchronous, or one knob member 202 can be in an up state and the other knob member 202 can be in a down state, so as to accommodate nozzle assemblies 3 of more diameter sizes.

[0143] In some embodiments, please refer to Fig.17 and Fig.18As shown, the clamping ring 201 also includes a ring portion 2014, and the ring portion 2014 has a clamping hole 2011 and an opening 2012, that is, two fixed abutting portions 2013 are fixed to the ring portion 2014. When the fixed abutting portion 2013 is a split structure, the second connecting portion 20135 is fixed to the ring portion 2014. The clamping ring 201 also includes two fixing portions 2015, and the two fixing portions 2015 are symmetrically arranged about the ring portion 2014. One end of each fixing portion 2015 is formed on the ring portion 2014, and the other end of each fixing portion 2015 extends along the circumference of the ring portion 2014, and there is a gap between the fixing portion 2015 and the ring portion 2014, and the other end of the fixing portion 2015 is fixed to the heat dissipation component 1.

[0144] In this embodiment, there is a gap between the fixing portion 2015 and the ring portion 2014, which can effectively reduce the heat of the nozzle assembly 3 from being transferred from the locking assembly 2 to the heat dissipation assembly 1, thereby improving the heat insulation effect. In addition, the fixing portion 2015 extends along the circumference of the ring portion 2014, which can effectively optimize the stress of the fixing portion 2015, avoid the fixing portion 2015 from breaking, and improve the product quality of the nozzle module.

[0145] As an implementation mode, the fixing portion 2015 can be detachably fixed to the heat dissipation assembly 1, so as to facilitate the individual replacement of parts and also facilitate installation and disassembly.

[0146] As an example, the heat dissipation component 1 is used to dissipate heat for the nozzle component 3, so that the consumables in the throat component 301 are not melted, and smooth feeding is achieved. The heat dissipation component 1 includes a heat dissipation member 101, two heat insulation members 102, and two fixing members 103. The two heat insulation members 102 are symmetrically arranged on both sides of the heat dissipation member 101 in the second direction, and the fixing members 103 are arranged one by one with the heat insulation members 102. The fixing members 103 are sequentially penetrated in the corresponding fixing portion 2015 and the heat insulation member 102 along the first direction and fixed to the heat dissipation member 101. The nozzle component 3 is penetrated in the heat dissipation member 101.

[0147] In this example, a heat insulating member 102 is provided between the fixing portion 2015 and the heat sink 101 , which can reduce the heat of the nozzle assembly 3 transferred from the fixing portion 2015 to the heat sink 101 , thereby improving the heat insulating effect.

[0148] For some examples, see Figure 5 and Fig.15 As shown, the fixing member 103 can be a threaded connector, for example, the fixing member 103 can be a screw. The fixing member 103 passes through the corresponding fixing portion 2015 and the heat insulating member 102 in sequence and is threadedly connected to the heat dissipating member 101, which can not only effectively fix the locking assembly 2 to the heat dissipating assembly 1, but also facilitate loading and unloading.

[0149] In some examples, the heat insulating member 102 may be made of nylon, thereby effectively blocking the spread of heat. It should be noted that in other embodiments, the heat insulating member 102 may be made of other materials and may be configured according to actual conditions, which will not be described in detail herein.

[0150] In some examples, heat sink 101 may include a heat sink.

[0151] In some embodiments, please refer to Figure 5 , Figure 6 , Fig.13 , Fig.15 and Fig.18 As shown, the nozzle assembly 3 includes a throat pipe 301, a heat-conducting pipe 302, a nozzle 303 and a locking pipe 304, wherein the throat pipe 301, the heat-conducting pipe 302 and the nozzle 303 are fixed in sequence in the first direction, wherein the throat pipe 301 is penetrated through the heat dissipation assembly 1. The locking pipe 304 is fixed to the outer periphery of the heat-conducting pipe 302, and the locking pipe 304 is penetrated through the clamping hole 2011, that is, the locking assembly 2 is in direct contact with the locking pipe 304, and during loading and unloading, the locking assembly 2 directly holds or loosens the locking pipe 304, thereby effectively protecting the heat-conducting pipe 302.

[0152] As an implementation mode, the locking tube 304 is detachably fixed to the heat-conducting tube 302. When the locking tube 304 is damaged due to long-term use, the locking tube 304 can be replaced separately, thereby extending the service life of the overall structure and reducing the use cost.

[0153] As an example, please refer to Fig.28 As shown, the locking pipe 304 can be threadedly connected to the heat-conducting pipe 302, which not only has a simple structure but also is easy to load and unload.

[0154] For some examples, see Fig.28 The locking tube 304 is provided with a threaded hole penetrating the locking tube 304 along a first direction. Correspondingly, an outer circumference of the connection between the heat conducting tube 302 and the locking tube 304 is provided with an external thread matching the threaded hole.

[0155] It should be noted that, in other embodiments, the locking pipe 304 and the heat-conducting pipe 302 may also be connected and fixed in other ways, which can be arranged according to actual conditions and will not be elaborated herein.

[0156] As an implementation mode, the heat-conducting pipe 302 and the nozzle component 303 are interference-fitted, thereby improving the structural stability of the nozzle assembly 3 .

[0157] In some examples, the heat-conducting pipe 302 can be made of copper, which has good heat-conducting effect. It should be noted that in other embodiments, the heat-conducting pipe 302 can be made of other materials, which can be set according to actual conditions, and will not be described in detail here.

[0158] As an embodiment, the nozzle assembly 3 also includes a heat dissipation pipe 305, which is detachably fixed to the outer periphery of the throat pipe 301. The heat dissipation pipe 305 is arranged between the heat dissipation element 101 and the throat pipe 301, which can not only effectively protect the throat pipe 301 and solve the problem of damage to the throat pipe 301 after long-term use, but also the heat dissipation pipe 305 is in close contact with the heat dissipation element 101 and the throat pipe 301 respectively, which can ensure that the heat of the throat pipe 301 can be quickly dissipated through the heat dissipation element 101.

[0159] As an example, the heat dissipation pipe 305 is sleeved on the outer circumference of the throat fitting 301 along the first direction, and there is an interference fit between the heat dissipation pipe 305 and the throat fitting 301, which not only makes the connection more secure, but also allows the heat of the throat fitting 301 to be transferred to the heat dissipation element 101 more quickly and effectively through the heat dissipation pipe 305.

[0160] In some examples, the heat dissipation pipe 305 can be made of copper, which has a good heat dissipation effect. It should be noted that in other embodiments, the heat dissipation pipe 305 can be made of other materials and can be set according to actual conditions, which will not be described in detail here.

[0161] In some embodiments, the nozzle module further includes a heating component 4, which is sleeved outside the heat-conducting pipe 302. The heating component 4 is used to heat the consumables passing through the heat-conducting pipe 302, so that the nozzle component 303 can extrude the molten consumables.

[0162] As an embodiment, the heating component 4 is detachably fixed to the nozzle component 3. When the nozzle component 3 is quickly disassembled, the heating component 4 and the nozzle component 3 are disassembled as a whole, that is, the heating component 4 is separated from the nozzle module together with the nozzle component 3.

[0163] As an example, please refer to Figure 5 , Figure 6 , Fig.13 and Fig.15 As shown, the heat-conducting pipe 302 may include a pipe portion 3021 and a third flange portion 3022, wherein the third flange portion 3022 is convexly disposed on the pipe portion 3021 in the circumferential direction, and the third flange portion 3022 is disposed at one end of the pipe portion 3021 close to the nozzle member 303. The locking pipe 304 is threadedly connected to one end of the pipe portion 3021 away from the third flange portion 3022, so that the heating assembly 4 can be fixed between the third flange portion 3022 and the locking pipe 304.

[0164] In some embodiments, the heating assembly 4 includes a heating element 401. The heating element 401 is configured as a cylindrical structure sleeved outside the heat-conducting pipe 302, and the heating element 401 is used to heat the heat-conducting pipe 302, thereby effectively heating the consumables to a molten state.

[0165] As an example, the heating element 401 can be an annular ceramic ring. The annular ceramic ring is used to heat the heat-conducting pipe 302. On the basis of achieving quick disassembly, the heat transfer efficiency can be more efficient and the heat-conducting pipe 302 can be heated more evenly, thereby solving the problem of uneven heating of the nozzle assembly 3.

[0166] As an implementation manner, the heating component 4 may further include a protective shell 402, which at least covers the outside of the heating element 401 to prevent heat leakage, thereby not only ensuring the heating effect but also being safer.

[0167] As an implementation manner, in order to better control the heating effect, the heating component 4 may further include a temperature sensor 403 .

[0168] As an example, please refer to Figure 6 and Fig.13 As shown, a mounting hole 30221 may be opened on the third flange portion 3022, and the temperature sensor 403 may be partially inserted into the mounting hole 30221, which is not only convenient for installation but also allows for a more reasonable spatial layout and is more conducive to miniaturization of the nozzle module.

[0169] The 3D printer according to the embodiment of the present application comprises the nozzle module provided by any of the above embodiments.

[0170] In the embodiment of the present application, the width W1 of the opening 2012 can be changed by rotating the knob 202, thereby changing the aperture of the clamping hole 2011, so that the clamping ring 201 can clamp or release the nozzle assembly 3 inserted in the clamping hole 2011, which can not only achieve one-twist quick installation and one-twist quick removal, but also the installation and removal processes are simple and do not require other tools, thereby improving the installation and removal efficiency. In addition, the locking assembly 2 can securely fix the nozzle assembly 3 to the heat dissipation assembly 1, solving the problem of the nozzle assembly 3 rotating and / or moving up and down during the movement, and realizing the reliable fixation of the nozzle assembly 3.

[0171] In some embodiments, the 3D printer further includes a base (not shown), and the heat sink 101 of the heat sink assembly 1 is connected to the base via a pressure collection component 5 , and the pressure collection component 5 can collect the pressure signal provided by the heat sink 101 .

[0172] As an example, the pressure collection member 5 may be a strain gauge. The heat sink 101 and the pressure collection member 5 are fixedly connected by screws or other threaded connectors, and the pressure collection member 5 is fixed to the base by screws or other threaded connectors.

[0173] In some embodiments, the 3D printer further includes a stopper 6. The heat dissipation assembly 1 is also connected to the base through the stopper 6, and the stopper 6 and the pressure collection member 5 are respectively arranged at both ends of the heat dissipation assembly 1 in the first direction, thereby effectively preventing the nozzle module from shaking during high-speed movement.

[0174] As an optional embodiment, the limit member 6 can be threadedly connected to the base, and the limit member 6 is inserted into the heat sink 101 of the heat sink assembly 1 along the first direction, which is not only convenient for installation but also can effectively limit the heat sink assembly 1, making the heat sink assembly 1 more secure and stable to install.

[0175] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0176] The above embodiments only express the preferred implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. Nozzle module, characterized in that: include: Heat dissipation components; A locking assembly, comprising a clamping ring fixed to the heat dissipation assembly and a knob connected to the clamping ring, wherein the clamping ring has a clamping hole and an opening penetrating therethrough in a first direction, and the opening is connected to the clamping hole; and A nozzle assembly is sequentially inserted into the clamping hole and the heat dissipation assembly along the first direction; The knob is rotatable relative to the clamping ring. When the knob is rotated relative to the clamping ring, the width of the opening is selectively reduced or increased, so that the clamping ring clamps or releases the nozzle assembly.

2. The nozzle module according to claim 1, characterized in that: The clamping ring is elastic, and when the knob rotates relative to the clamping ring so that the width of the opening increases, the nozzle assembly can be disconnected from the clamping ring under the action of its own weight.

3. The nozzle module according to claim 1, characterized in that: The clamping ring has two fixed abutting portions disposed on both sides of the opening in a second direction perpendicular to the first direction, wherein the second direction is a width direction of the opening; The knob comprises a rotation abutting portion corresponding to the fixed abutting portion, the rotation abutting portion has a first matching surface, and the fixed abutting portion has a second matching surface abutting against the corresponding first matching surface in the second direction; The rotating abutting portion can rotate relative to the fixed abutting portion, so that the first matching surface presses or releases the corresponding second matching surface along the second direction, thereby causing the clamping ring to clamp or release the nozzle assembly.

4. The nozzle module according to claim 3, characterized in that: The first mating surface is a cam surface; Alternatively, the first mating surface and the second mating surface are wedge-shaped surfaces that fit together.

5. The nozzle module according to claim 3, characterized in that: The two fixed abutting portions are respectively a first fixed abutting portion and a second fixed abutting portion; The knob member includes a rotation abutment portion, which is arranged on a side of the first fixed abutment portion away from the second fixed abutment portion, and an end surface of the first fixed abutment portion away from the second fixed abutment portion is configured as the second mating surface.

6. The nozzle module according to claim 5, characterized in that: The first matching surface is a cam surface, the central axis of the cam surface is eccentrically arranged relative to a first axis perpendicular to the second direction, and the relative position of the first axis and the second fixed abutting portion is fixed; The knob can rotate around the first axis to allow the first mating surface to press or release the second mating surface along the second direction.

7. The nozzle module according to claim 6, characterized in that: The locking assembly further includes a first connecting member, the first connecting member including a first rod portion extending along the second direction and a first flange portion formed at one end of the first rod portion, the other end of the first rod portion being sequentially inserted through the second fixed abutting portion and the first fixed abutting portion and connected to the rotating abutting portion; Wherein, one end of the second fixed abutting portion facing away from the first fixed abutting portion in the second direction abuts against the first flange portion, and the rotatable abutting portion can rotate around the first axis relative to the first rod portion.

8. The nozzle module according to claim 7, characterized in that: The rotating abutting portion is provided with a first assembly hole with the first axis as an axis, and the rotating abutting portion is also provided with an avoidance groove which is arranged around the first axis and connected to the first assembly hole; The locking assembly further includes a second connecting member, and the second connecting member is inserted into the first assembly hole; The first connecting member is inserted into the avoiding groove and is fixed to the second connecting member.

9. The nozzle module according to claim 8, characterized in that: A second assembly hole extending in the radial direction of the second connection member is formed on the circumference of the second connection member, the first connection member is threadedly connected to the second assembly hole, and the second connection member is further formed with a third assembly hole having the first axis as an axis, the third assembly hole being connected to the second assembly hole; The locking assembly further includes a fastener threadedly connected to the third assembly hole, and the fastener is used to tightly press against the first connecting member connected to the second assembly hole.

10. The nozzle module according to claim 3, characterized in that: The knob member includes two rotating abutment portions spaced apart in the second direction, the two fixed abutment portions are located between the two rotating abutment portions, and at least one of the two rotating abutment portions can squeeze or release the corresponding fixed abutment portion along the second direction to make the two fixed abutment portions approach or move away from each other along the second direction.

11. The nozzle module according to claim 10, characterized in that: The first mating surface and the second mating surface are both wedge-shaped surfaces arranged around a second axis parallel to the second direction and extending obliquely in the second direction; The knob can rotate around the second axis to allow the first mating surface to press or release the second mating surface along the second direction.

12. The nozzle module according to claim 11, characterized in that: The rotation abutting portion has a plurality of the first matching surfaces arranged around the second axis, and two adjacent first matching surfaces are connected by a first transition surface; The fixed abutting portion has a plurality of second matching surfaces arranged around the second axis, and two adjacent second matching surfaces are connected by a second transition surface.

13. The nozzle module according to claim 11, characterized in that: The fixed abutting portion has a receiving hole which is arranged facing the rotating abutting portion and takes the second axis as an axis. The second matching surface is formed on the bottom surface of the receiving hole. The rotating abutting portion is rotatably connected in the receiving hole.

14. The nozzle module according to claim 3, characterized in that: The knob also includes two first connecting arms spaced apart and symmetrically arranged in the second direction and a second connecting arm connected to one end of the two connecting arms, and the other ends of the two first connecting arms are respectively fixed with the rotation abutting portions.

15. The nozzle module according to claim 14, characterized in that: The locking assembly further comprises two third connecting members symmetrically arranged in the second direction; The third connecting member includes a second rod portion with the second axis as an axis and a second flange portion formed at one end of the second rod portion, and the other end of the second rod portion is passed through the corresponding rotating abutment portion and fixed to the corresponding fixed abutment portion; The rotating abutting portion abuts against the second flange portion at one side thereof in the second direction away from the fixed abutting portion.

16. The nozzle module according to claim 14, characterized in that: The rotating abutting portion is a split structure, and includes a detachably fixed first connecting portion and a first matching portion, the first connecting portion is fixed to the corresponding first connecting arm, and the first matching surface is formed on the first matching portion; Alternatively, the rotation abutting portion is an integrated structure.

17. The nozzle module according to claim 3, characterized in that: The fixed abutting portion is a split structure, and includes a detachably fixed second connecting portion and a second matching portion, the second connecting portion is fixed to one side of the opening, and the second matching surface is formed on the second matching portion; Alternatively, the fixed supporting portion is an integrated structure.

18. The nozzle module according to claim 1, characterized in that: The clamping ring also includes a ring portion and two fixing portions symmetrically arranged with respect to the ring portion; The ring portion has the clamping hole and the opening; One end of the fixing portion is formed on the ring portion, the other end of the fixing portion extends along the circumference of the ring portion with a gap between the fixing portion and the ring portion, and the other end of the fixing portion is detachably fixed to the heat dissipation assembly.

19. The nozzle module according to claim 18, characterized in that: The heat dissipation assembly includes a heat dissipation member, two heat insulation members and two fixing members; The two heat insulating members are symmetrically arranged on both sides of the heat dissipating member in a second direction perpendicular to the first direction, and the fixing member is sequentially passed through the corresponding fixing portion and the heat insulating member and fixed to the heat dissipating member; The nozzle assembly is disposed through the heat sink.

20. The nozzle module according to claim 1, characterized in that: The nozzle assembly includes a throat pipe, a heat-conducting pipe and a nozzle piece connected in sequence in the first direction, the throat pipe is passed through the heat dissipation assembly, and the nozzle assembly also includes a locking pipe fixed to the outer periphery of the heat-conducting pipe, and the locking pipe is passed through the clamping hole.

21. The nozzle module according to claim 20, characterized in that: The nozzle module also includes a heating component, and the heating component is sleeved outside the heat-conducting pipe.

22. The nozzle module according to claim 21, characterized in that: The heat-conducting pipe member comprises a pipe portion and a third flange portion protruding from the pipe portion in a circumferential direction, wherein the third flange portion is arranged at one end of the pipe portion close to the nozzle member; The locking pipe is threadedly connected to an end of the pipe away from the third flange; The heating component is arranged between the third flange portion and the locking pipe.

23. A three-dimensional printer, characterized in that: Comprising the nozzle module according to any one of claims 1 to 22.

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