Lock catch mechanism of milk box
By designing a locking mechanism for the milk box, the problems of inconvenience in using and complex installation of the separate structure of the milk box and coffee machine in the existing technology are solved, achieving the effect of quick disassembly and assembly and stable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-24
AI Technical Summary
The existing milk box device and coffee machine are separate structures, which are inconvenient to use and complicated to install, making it difficult to achieve quick disassembly and assembly.
A locking mechanism for a milk carton is designed, including a carton body, a frothing mechanism, and a locking element. Through the cooperation of the shaft, trigger, and locking tongue of the locking element, the milk carton can be quickly disassembled and stably connected to the coffee machine.
It enables quick assembly and disassembly and stable connection between the milk box and the coffee machine, simplifying the installation process and improving ease of use.
Smart Images

Figure CN224023368U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milk box technology for coffee machines, and more specifically to the locking mechanism of milk boxes. Background Technology
[0002] The process of making milk foam involves mixing a prepared milk mixture with a certain proportion of air and steam, then whipping and expanding it. During the whipping process, air is trapped by protein molecules to form a membrane-like foam structure. Most commercial or home coffee machines are equipped with a milk tank device, which whips the milk into foam and then adds it to the coffee according to the user's taste.
[0003] In the existing technology, the milk box device and the coffee machine are separate structures. After the coffee is made, milk foam is added through the milk bottle device. The separate structure is inconvenient to use and store.
[0004] In the existing technology, there are also some milk box devices that are installed on coffee machines, but the installation structure is complicated and not easy to disassemble. Utility Model Content
[0005] In view of this, the present invention provides a locking mechanism for a milk box.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a locking mechanism for a milk box, the milk box comprising: a box body and a steaming mechanism, the steaming mechanism being installed on the box body, and the steaming mechanism having a section of tube extending out of the box body; the side wall of the box body is provided with perforations;
[0007] The housing is equipped with a locking component, which has a shaft, a triggering part, and a locking tongue. The locking component is connected to a torsion spring.
[0008] The shaft is hollow and passes through a perforation, allowing it to rotate within the perforation; the tube passes through the shaft and extends out of the box.
[0009] The locking tongue is connected to the shaft and protrudes outside the housing;
[0010] The trigger part is connected to the shaft part. The trigger part drives the shaft part to rotate and simultaneously drives the locking tongue part to move synchronously.
[0011] The locking tongue can be moved to a locked position and an unlocked position;
[0012] The torsion spring provides the elastic force for the latch to return from the unlocked position to the locked position.
[0013] As a preferred embodiment of this utility model, a support platform is provided inside the box, and the support platform is provided with a limiting surface;
[0014] The shaft portion is provided with a limiting block;
[0015] One fixed leg of the torsion spring is supported by the limiting block, and the other fixed leg is supported by the limiting surface.
[0016] In a preferred embodiment of this utility model, the limiting surface is disposed on the moving trajectory of the limiting block, and the limiting block can rotate to abut against the limiting surface.
[0017] In a preferred embodiment of this utility model, the support platform is provided with an arc-shaped surface; the tube body is supported on the arc-shaped surface.
[0018] In a preferred embodiment of this utility model, the locking tongue extends parallel to the axial direction of the shaft and protrudes from the housing; a gap is formed between the inner side of the locking tongue and the outer side of the tube.
[0019] As a preferred embodiment of this utility model, the shaft portion has a first limiting portion and a second limiting portion. The first limiting portion is located on the inner side of the housing, and the second limiting portion is located on the outer side of the housing. The first limiting portion and the second limiting portion cooperate to restrict the shaft portion to the through hole and prevent it from moving axially.
[0020] In a preferred embodiment of this utility model, both the trigger part and the locking tongue part are connected to the second limiting part; the trigger part extends out in the radial direction parallel to the shaft part.
[0021] As a preferred embodiment of this utility model, the milk box also includes a lid, the perforation penetrates the upper edge of the box body, and when the lid is installed on the top of the box body, it limits the shaft portion in the perforation and prevents it from moving upward out of the perforation.
[0022] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects: The present invention is provided with a locking component at the milk box, which enables quick assembly and disassembly between the milk box and the coffee machine, and the assembly between the milk box and the coffee machine is stable after installation. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a schematic diagram showing the box lid after it has been removed from the present invention.
[0026] Figure 3for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 This is an exploded view of the present invention;
[0028] Figure 5 This is a schematic diagram of the locking element in this utility model;
[0029] Figure 6 This is a schematic diagram of the locking element rotating to the unlocked position in this utility model;
[0030] Figure 7 This is a schematic diagram of the locking element rotating to the locked position in this utility model.
[0031] Explanation of reference numerals in the attached figures
[0032] Box body 100; perforation 101; upper mounting cavity 102; firing mechanism 200; tube body 201; locking fastener 300; shaft 310; first limiting part 311; second limiting part 312; limiting block 313; trigger part 320; locking tongue part 330; torsion spring 340; support platform 400; limiting surface 401; arc surface 402; box cover 500. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0034] For the locking mechanism of the milk box, please refer to [link / reference]. Figure 1-5 As shown, the milk box includes: a box body 100, a milk-making mechanism 200, and a box lid 500. The milk-making mechanism 200 is installed on the box body 100, and the milk-making mechanism 200 has a section of tube 201 extending out of the box body 100. The side wall of the box body 100 is provided with a through hole 101. The box body 100 is equipped with a locking fastener 300.
[0035] The milk box and coffee machine are assembled using locking fastener 300 for positioning.
[0036] like Figure 5 As shown, the locking member 300 has a shaft portion 310, a trigger portion 320 and a locking tongue portion 330, and the locking member 300 is connected to a torsion spring 340;
[0037] The shaft portion 310 is hollow and passes through the through hole 101 and can rotate in the through hole 101. The tube body 201 passes through the shaft portion 310 and extends out of the box body 100.
[0038] The locking tongue 330 is connected to the shaft 310 and protrudes beyond the housing 100;
[0039] The trigger part 320 is connected to the shaft part 310. The trigger part 320 drives the shaft part 310 to rotate while driving the locking tongue part 330 to move synchronously. The locking tongue part 330 can move to the locked position and the unlocked position.
[0040] The torsion spring 340 provides elastic force for the latch 330 to return from the unlocked position to the locked position.
[0041] In this technology, the milk box and coffee machine are assembled. The coffee machine should be equipped with a connecting pipe corresponding to the pipe section 201, and the coffee machine casing should also be equipped with an insertion hole. The pipe section 201 passes through the insertion hole and connects to the connecting pipe inside the coffee machine to realize the transmission of fluid.
[0042] In addition, the coffee machine housing should also be provided with a locking groove that cooperates with the locking tongue 330, so that when the locking fastener 300 is rotated from the unlocked position to the locked position, the locking tongue 330 is screwed into the locking groove, thereby locking the milk tank and the coffee machine.
[0043] When the latch 300 rotates from the locked position to the unlocked position, the latch 330 rotates out of the lock groove, thereby unlocking the milk box and coffee machine.
[0044] Specifically, the box 100 is provided with an upper mounting cavity 102 and a lower liquid storage cavity. The lower liquid storage cavity is used to store milk, and the upper mounting cavity 102 is used to accommodate and assemble the whipping mechanism 200.
[0045] If the housing 100 is made of plastic, it can be integrally formed with supporting ribs, mounting positions, studs and other structures in the upper mounting cavity 102 during manufacturing, so as to adaptably support and install the firing mechanism 200.
[0046] The locking element 300 can be integrally formed from metal or plastic material, that is, the shaft part 310, the trigger part 320, and the locking tongue part 330 are integrally formed, while the torsion spring 340 is added to or connected to the locking element 300.
[0047] After the locking element 300 is installed in the housing 100, the shaft 310 passes through the through hole 101, and the trigger part 320 and the locking tongue part 330 are both located outside the housing 100, so that the user can apply force to rotate the locking element 300 through the trigger part 320, which will drive the locking tongue 330 to rotate.
[0048] Furthermore, a support platform 400 is provided inside the housing 100, and the support platform 400 is provided with a limiting surface 401;
[0049] The shaft portion 310 is provided with a limiting block 313;
[0050] One fixed foot of the torsion spring 340 is supported by the limiting block 313, and the other fixed foot is supported by the limiting surface 401.
[0051] In this technology, the storage part of the torsion spring 340 can be sleeved on the tube 201 or the shaft 310, such as Figure 3 As shown, specifically, the energy storage part of the torsion spring 340 is sleeved on the tube body 201. Figure 3 The central locking fastener 300 is in the locked position, and the torsion spring 340 provides the locking fastener 300 with elastic force to stabilize it in the locked position.
[0052] At this time, if we take Figure 3 When the locking element 300 is rotated in the direction of the middle arrow, the torsion spring 340 is compressed. After the locking element 300 is rotated to the unlocked position, the external force acting on the locking element 300 is released. Then, under the elastic force of the torsion spring 340, the locking element 300 rotates back to the locked position.
[0053] Alternatively, the torsion spring 340 can be replaced with a spring sheet structure.
[0054] Continue as Figure 3 As shown, the limiting block 313 can be added to the shaft portion 310, or the limiting block 313 can be integrally formed during the manufacturing of the locking component 300.
[0055] Furthermore, the limiting surface 401 is disposed on the moving trajectory of the limiting block 313, and the limiting block 313 can rotate to abut against the limiting surface 401;
[0056] like Figure 2-3 , Figure 6-7 As shown, when the locking member 300 switches between the locked position and the unlocked position, the locking member 300 rotates clockwise or counterclockwise. The limiting surface 401 is set on the moving trajectory of the limiting block 313. Then, when the locking member 300 rotates from the locked position to the unlocked position, the maximum rotation angle of the locking member 300 is until the limiting block 313 abuts against the limiting surface 401.
[0057] Additionally, it is worth noting that when the limit block 313 and the limit surface 401 are in contact, it is the maximum rotation angle of the locking element 300 from the locked position to the unlocked position. Depending on the actual needs, this maximum rotation angle may not be equal to the angle that must be rotated when unlocking. The angle that must be rotated when unlocking may be less than the maximum rotation angle.
[0058] Furthermore, the support platform 400 is provided with an arc-shaped surface 402; the tube body 201 is supported on the arc-shaped surface 402; the support platform 400 effectively supports the tube body 201.
[0059] The support platform 400 can be added to the upper mounting cavity 102, or it can be formed in the upper mounting cavity 102 in one day.
[0060] Furthermore, the locking tongue 330 extends parallel to the axial direction of the shaft 310 and protrudes from the housing 100; a gap is formed between the inner side of the locking tongue 330 and the outer side of the tube 201, which facilitates the insertion of the tube 201 into the connecting tube of the coffee machine, and facilitates the connection between the locking tongue 330 and the locking groove of the housing.
[0061] Furthermore, the shaft portion 310 has a first limiting portion 311 and a second limiting portion 312. The first limiting portion 311 is located on the inner side of the housing 100, and the second limiting portion 312 is located on the outer side of the housing 100. The first limiting portion 311 and the second limiting portion 312 cooperate to restrict the shaft portion 310 at the through hole 101 so that it cannot move axially.
[0062] Specifically, the first limiting part 311 and the second limiting part 312 are integrally formed with the shaft part 310. The first limiting part 311 and the second limiting part 312 can be disc-shaped or other shapes. The first limiting part 311 can be attached to the inner side of the housing 100, while the second limiting part 312 can be attached to the outer side of the housing 100, thereby effectively restricting the axial movement of the shaft part 310.
[0063] Furthermore, both the trigger portion 320 and the locking tongue portion 330 are connected to the second limiting portion 312; the trigger portion 320 extends out in the radial direction parallel to the shaft portion 310;
[0064] The trigger part 320 can have various shapes. Its main purpose is to facilitate the application of force to push the shaft part 310 to rotate within the through hole 101, so that the entire locking part 300 can rotate.
[0065] like Figure 5 As shown, the trigger part 320 is radially extended and protrudes, and is shaped like a handle.
[0066] Furthermore, the milk box also includes a lid 500, and the perforation 101 penetrates the upper edge of the box body 100. When the lid 500 is installed on the top of the box body 100, it limits the shaft portion 310 in the perforation 101 and prevents it from moving upward out of the perforation 101.
[0067] like Figure 4 As shown, during installation, the tube 201 of the firing mechanism 200 is passed through the shaft 310 of the locking member 300, and then the firing mechanism 200 is installed in the upper mounting cavity 102. The shaft 310 is inserted into the through hole 101 from top to bottom. The shaft 310 is limited by the first limiting part 311 and the second limiting part 312 and cannot move axially. The tube 201 extends out of the box 100.
[0068] Then, the cover 500 is installed on the top of the housing 100, and the shaft 310 is confined in the through hole 101 and cannot be dislodged upward from the through hole 101.
[0069] When assembling the milk box with the coffee machine, the tube 201 can be directly pushed into the coffee machine's socket and connected to the connecting tube. During this process, the locking tongue 330 can be driven to rotate to the unlock position with the assistance of some guiding mechanisms until the tube 201 and the connecting tube are inserted. Then, the locking tongue 330 is aligned with the locking groove, and the locking fastener 300 is reset to the locked position under the elastic force of the torsion spring 340. The locking tongue 330 is then engaged in the locking groove.
[0070] Alternatively, during installation, the user manually applies force to push the locking element 300 to the unlocked position until the tube body 201 is inserted into the connecting tube. Then, the external force applied to the locking element 300 is released, and the locking element 300 returns to the locked position under the elastic force of the torsion spring 340. The locking tongue 330 then engages with the lock groove, completing the installation.
[0071] During disassembly, the user manually applies force to push the locking component 300 to the unlocked position, then pulls out the tube 201 until the tube 201 and the connecting tube separate, separating the milk box from the coffee machine. The external force applied to the locking component 300 is released, and the locking component 300 automatically resets to the locked position.
[0072] In addition, the coffee machine is equipped with a corresponding control switch. When the locking tongue 330 is screwed into the locking groove, the coffee machine and the milk tank are locked, and the locking tongue 330 triggers the control switch.
[0073] When the locking tongue 330 is rotated out of the locking groove, the coffee machine and milk box are unlocked, and the locking tongue 330 no longer triggers the control switch;
[0074] The control switch can be a switch that controls the power supply to the coffee machine; it can also be a switch that controls whether the coffee machine supplies steam to the milk tank, etc.
[0075] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. The locking mechanism of the milk box, which includes: A housing (100) and a firing mechanism (200), the firing mechanism (200) being mounted on the housing (100), and the firing mechanism (200) having a tube (201) extending outside the housing (100); characterized in that: The side wall of the box (100) is provided with perforations (101); The housing (100) is equipped with a locking element (300), which has a shaft (310), a trigger (320) and a locking tongue (330), and is connected to a torsion spring (340). The shaft (310) is hollow and passes through the through hole (101) and can rotate within the through hole (101); the tube (201) passes through the shaft (310) and extends out of the box (100); The locking tongue (330) is connected to the shaft (310) and protrudes beyond the housing (100); The trigger part (320) is connected to the shaft part (310). The trigger part (320) drives the shaft part (310) to rotate while driving the locking tongue part (330) to move synchronously. The locking tongue part (330) can be moved to the locked position and the unlocked position. The torsion spring (340) provides the elastic force for the latch (330) to return from the unlocked position to the locked position.
2. The locking mechanism of the milk box according to claim 1, characterized in that: The housing (100) is provided with a support platform (400), and the support platform (400) is provided with a limiting surface (401); The shaft portion (310) is provided with a limiting block (313); One fixed foot of the torsion spring (340) is supported on the limiting block (313), and the other fixed foot is supported on the limiting surface (401).
3. The locking mechanism of the milk box according to claim 2, characterized in that: The limiting surface (401) is set on the movement trajectory of the limiting block (313), and the limiting block (313) can rotate to abut against the limiting surface (401).
4. The locking mechanism of the milk box according to claim 2, characterized in that: The support platform (400) is provided with an arc-shaped surface (402); the tube body (201) is supported on the arc-shaped surface (402).
5. The locking mechanism of the milk box according to claim 1 or 2, characterized in that: The latch (330) extends out of the housing (100) in a direction parallel to the axial direction of the shaft (310); a gap is formed between the inner side of the latch (330) and the outer side of the tube (201).
6. The locking mechanism of the milk box according to claim 1 or 2, characterized in that: The shaft portion (310) has a first limiting portion (311) and a second limiting portion (312). The first limiting portion (311) is located on the inner side of the housing (100), and the second limiting portion (312) is located on the outer side of the housing (100). The first limiting portion (311) and the second limiting portion (312) cooperate to restrict the shaft portion (310) at the through hole (101) so that it cannot move axially.
7. The locking mechanism of the milk box according to claim 6, characterized in that: The trigger part (320) and the locking tongue part (330) are both connected to the second limiting part (312); the trigger part (320) extends out in the radial direction parallel to the shaft part (310).
8. The locking mechanism of the milk box according to claim 6, characterized in that: The milk box also includes a lid (500), and the perforation (101) penetrates the upper edge of the box body (100). When the lid (500) is installed on the top of the box body (100), it limits the shaft (310) in the perforation (101) and prevents it from moving upward out of the perforation (101).