Locking device and cake mold

Abstract

Locking device, characterized in that it comprises the following: a first connecting element comprising a first end section and a second end section arranged opposite each other, the first end section serving to clamp the upper end of a ring body; a second connecting element comprising a third end section and a fourth end section arranged opposite each other, the third end section serving to clamp the lower end of the ring body; a first locking element comprising a fifth end section and a sixth end section arranged opposite each other, wherein the fifth end section is rotatably connected to the fourth end section, the fifth end section is connected to the second end section, the fifth end section can rotate about the axis of rotation relative to the fourth end section, and the sixth end section has a first locking section; a second locking element attached to the second connecting element, wherein the second locking element has a second locking section; wherein the first locking section and the second locking section are locked when the fifth end section rotates into a first position relative to the fourth end section, and the fifth end section exerts traction on the second end section and the fourth end section respectively to drive the first end section to approach the third end section.

Description

Technical field

[0001] The present application relates to the technical field of cake molds and in particular to a locking device and a cake mold. State of the art

[0002] Cake molds are used to shape cakes during the baking process. They consist of a ring-shaped body formed by winding a long, strip-shaped sheet of steel around it. The diameter of the ring can be varied by changing the degree of overlap between the two ends of the long, strip-shaped steel, thus allowing cakes of different sizes to be made. In current cake molds, a clamping plate is attached to the long, strip-shaped steel to compress the overlapping section and prevent it from shifting. However, this clamping design often results in shifting or loosening during baking, which affects the shape of the cake. Content of the utility model

[0003] In view of the problems existing in the prior art, the purpose of this application is to provide a locking device and a cake mold to overcome or at least partially solve the aforementioned problems.

[0004] According to a first aspect of the present application, a locking device is provided comprising a first connecting element, a second connecting element, a first locking element, and a second locking element. The first connecting element comprises a first end section and a second end section arranged opposite each other, and the first end section serves to clamp the upper end of an annular body. The second connecting element comprises a third end section and a fourth end section arranged opposite each other, and the third end section serves to clamp the lower end of the annular body.The first locking element comprises a fifth end section and a sixth end section arranged opposite each other. The fifth end section is rotatably connected to the fourth end section, and the fifth end section is connected to the second end section. The fifth end section can rotate about the axis of rotation relative to the fourth end section. The sixth end section has a first locking section. The second locking element is attached to the second connecting element and has a second locking section.The first locking section and the second locking section are locked when the fifth end section rotates into a first position relative to the fourth end section, and the fifth end section exerts a pulling force on the second end section and the fourth end section respectively to drive the first end section to approach the third end section.

[0005] In one or more of the above-mentioned optional embodiments, the first locking section comprises a groove section and the second locking section comprises hooks, the sixth end section covers the second locking element when the fifth end section rotates into the first position relative to the fourth end section, and the hooks engage in the groove section along the direction in which the sixth end section covers the second locking element.

[0006] In one or more of the above-mentioned optional embodiments, the second locking element is provided with a spring element, the second locking section comprises a connecting arm, the connecting arm comprises a seventh end section and an eighth end section which are arranged opposite each other, the seventh end section is rotatably connected to the second locking element, the hooks are provided on the eighth end section and the eighth end section is connected to the spring element.The eighth end section can move back and forth between a locking position and an unlocking position under the drive of the seventh end section; the hooks engage in the groove section when the eighth end section is in the locking position, and the hooks release from the groove section when the eighth end section is in the unlocking position; and the spring element serves to generate a spring action that opposes a movement of the eighth end section from the locking position towards the unlocking position.

[0007] In one or more of the above-mentioned optional embodiments, the second locking element is provided with a spring element, the second locking section comprises a connecting arm, the connecting arm comprises a seventh end section and an eighth end section which are arranged opposite each other, the seventh end section is attached to the second locking element and the eighth end section is connected to the spring element.The eighth end section can perform an elastic bend relative to the seventh end section in order to move back and forth between the locking position and the unlocking position, and the hooks engage in the groove section when the eighth end section is in the locking position, the hooks disengage from the groove section when the eighth end section is in the unlocking position, and the spring element serves to generate a spring action that opposes any movement of the eighth end section from the locking position towards the unlocking position.

[0008] In one or more of the optional embodiments mentioned above, the groove section comprises a first groove section and a second groove section arranged opposite each other, the number of connecting arms is two, the hooks comprise a first hook and a second hook, the two connecting arms are arranged opposite each other, the first hook and the second hook are each arranged on the two eighth end sections, the spring element comprises a ninth end section and a tenth end section arranged opposite each other, the ninth end section is connected to one of the eighth end sections and the tenth end section is connected to the other eighth end section, and the first hook engages in the first groove section and the second hook engages in the second groove section when the fifth end section rotates into the first position relative to the fourth end section.

[0009] In one or more of the optional embodiments mentioned above, the second locking element is provided with a receiving groove. A side wall of the receiving groove has a first opening and a second opening opposite each other. The spring element and the second locking section are both arranged in the receiving groove, and the first hook is guided through the first opening and the second hook through the second opening. The eighth end section is provided with a pressure section. Along the ninth end section in the direction of the tenth end section, the pressure sections of the two eighth end sections are arranged facing away from each other. One of the pressure sections projects out of the second locking element through the first opening, and the other pressure section projects out of the second locking element through the second opening.

[0010] In one or more of the above-mentioned optional embodiments, the second locking element is provided with a receiving groove, the spring element and the second locking section are both arranged in the receiving groove, the second locking element further comprises a first limiting hole and a second limiting hole, which are arranged opposite each other along the ninth end section in the direction of the tenth end section, and the first hook is passed through the first limiting hole and the second hook is passed through the second limiting hole.The eighth end section is provided with a pressure section; along the ninth end section in the direction of the tenth end section, the pressure sections of the two eighth end sections are arranged facing away from each other; the second locking element further has a third limiting hole and a fourth limiting hole, which are arranged opposite each other along the ninth end section in the direction of the tenth end section, and one of the pressure sections is passed through the third limiting hole and the other pressure section is passed through the fourth limiting hole.

[0011] In one or more of the optional embodiments mentioned above, the first end section comprises a first clamping plate, a first connecting section, and a second clamping plate; the first clamping plate and the second clamping plate are arranged opposite each other; the first connecting section connects the first clamping plate and the second clamping plate; and a first clamping groove for clamping the upper end of the ring body is formed between the first clamping plate and the second clamping plate; and / or the third end section comprises a third clamping plate, a second connecting section, and a fourth clamping plate; the third clamping plate and the fourth clamping plate are arranged opposite each other; the second connecting section connects the third clamping plate and the fourth clamping plate; and a second clamping groove for clamping the lower end of the ring body is formed between the third clamping plate and the fourth clamping plate.and / or the fifth end section has a first connecting hole and a second connecting hole, an axis of the first connecting hole runs parallel to an axis of the second connecting hole, the second end section has a third connecting hole and the fourth end section has a fourth connecting hole, along the axis of the first connecting hole the first connecting hole is aligned with the third connecting hole and the second connecting hole is aligned with the fourth connecting hole, the locking device comprises a first connecting shaft and a second connecting shaft, the first connecting shaft passes through the first connecting hole and the third connecting hole and the second connecting shaft passes through the second connecting hole and the fourth connecting hole.

[0012] According to a second aspect of the present application, a cake mold is provided which includes a ring body and the locking device described above.

[0013] In one or more of the above-mentioned optional embodiments, the fourth end section is attached to an outer circumferential wall of the ring body; and / or the cake mold includes a limiting ring, and the limiting ring is placed on an overlapping section of the ring body.

[0014] The advantageous effects of the embodiments of the present application are as follows: the locking device provided in the embodiment of this application drives the first end section closer to the third end section by rotating the fifth end section relative to the fourth end section, so that the first end section and the third end section clamp the overlapping section of the ring body. Furthermore, the first locking section is locked to the second locking section when the fifth end section rotates into the first position to lock the fifth end section in the first position.In comparison to traditional cake molds, which fix the ring body merely by pressing it against the clamping plate, the locking device in the embodiments of the present application offers higher reliability and contributes to reducing the problem of the ring body loosening during the baking process. Character description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of the present application or in the prior art, a brief introduction to the drawings necessary for describing the specific embodiments or the prior art is given below. In all drawings, similar elements or sections are generally identified by similar reference numerals. The elements or sections in the drawings are not necessarily shown to scale. Fig. Figure 1 is a perspective view of a cake tin according to an embodiment of the present application; Fig. Figure 2 is an exploded view of a locking device according to an embodiment of the present application; Fig. Figure 3 is a sectional view of a cake tin according to an embodiment of the present application; Fig. Figure 4 is a schematic view of a first locking element of a locking device according to an embodiment of the present application; Fig. Figure 5 is a schematic view of a first locking section of a locking device according to an embodiment of the present application; Fig. Figure 6 is a schematic view of a second locking element of a locking device according to an embodiment of the present application; Fig. Figure 7 is a partially schematic view of a first locking section and a second locking section of a locking device in the locked state according to an embodiment of the present application; Fig. Figure 8 is a partial exploded view of a locking device according to an embodiment of the present application; Fig. Figure 9 is a schematic view of a second locking element of a locking device according to an embodiment of the present application; Fig. Figure 10 is a schematic view of a first connecting element of a locking device according to an embodiment of the present application; and Fig. Figure 11 is a schematic view of a second connecting element of a locking device according to an embodiment of the present application. Detailed designs

[0016] To facilitate understanding of the present application, it is further explained below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "attached to another element," it may be directly attached to the other element, or one or more intermediate elements may be present between them. When an element is described as "connected to another element," it may be directly connected to the other element, or one or more intermediate elements may be present between them. Terms used in this description, such as "vertical," "horizontal," "left," "right," "inside," "outside," and similar expressions, serve only for illustrative purposes.

[0017] Unless otherwise defined, all technical and scientific terms used in this description have the same meaning as generally understood by those skilled in the technical field of this application. The terms used in the description of this application serve solely to describe specific embodiments and are not intended to limit this application. The term "and / or" used in this description includes any and all combinations of one or more of the relevant elements listed.

[0018] Unless expressly stated and defined otherwise, the terms "connect," "connect," and "fasten" in this description are to be understood broadly. They may refer, for example, to a permanent connection, a detachable connection, or an integral unit; a mechanical or electrical connection; a direct or indirect connection via an intermediate medium; and internal communication or interaction between two elements. For the average person skilled in the art, the specific meanings of the aforementioned terms in this utility model can be interpreted based on the circumstances.

[0019] Furthermore, the following technical features described in the various embodiments of the present application can be combined with each other, provided they do not conflict with each other.

[0020] With reference to Fig. 1 to Fig. The locking device 100 comprises a first connecting element 1, a second connecting element 2, a first locking element 3, and a second locking element 4. The first connecting element 1 comprises a first end section 11 and a second end section 12, which are arranged opposite each other, and the first end section 11 serves to clamp the upper end of a ring body 200. The second connecting element 2 comprises a third end section 21 and a fourth end section 22, which are arranged opposite each other, and the third end section 21 serves to clamp the lower end of the ring body 200.The first locking element 3 comprises a fifth end section 31 and a sixth end section 32, which are arranged opposite each other. The fifth end section 31 is rotatably connected to the fourth end section 22. The fifth end section 31 is connected to the second end section 12. The fifth end section 31 can rotate about the axis of rotation z relative to the fourth end section 22, causing the connection between the second end section 12 and the fifth end section 31 to rotate about the axis of rotation z. The sixth end section 32 has a first locking section 321. The second locking element 4 is attached to the second connecting element 2, and the second locking element 4 has a second locking section 41.The first locking section 321 and the second locking section 41 are locked when the fifth end section 31 rotates into a first position relative to the fourth end section 22, and the fifth end section 31 exerts a pulling force on the second end section 12 and the fourth end section 22 respectively, to drive the first end section 11 to approach the third end section 21.

[0021] When the locking device 100 is used in the cake mold 1000, the first end section 11 snaps into the upper end of the overlap section 203 of the ring body 200, and the third end section 21 snaps into the lower end of the overlap section 203 of the ring body 200. When the fifth end section 31 rotates into the first position relative to the fourth end section 22, the fifth end section 31 exerts a tensile force on the second end section 12 and the fourth end section 22, respectively, to drive the first end section 11 toward the third end section 21, thereby firmly locking the overlap section 203 of the ring body 200 through the first end section 11 and the third end section 21, thus maintaining the diameter of the ring body 200.The first locking section 321 and the second locking section 41 are locked, thereby fixing the sixth end section 32 to the second locking element 4.

[0022] The locking device 100 provided in the embodiment of the present application brings the first end section 11 close to the third end section 21 by rotating the fifth end section 31 relative to the fourth end section 22, so that the first end section 11 and the third end section 21 firmly lock the overlap section 203 of the ring body 200. Furthermore, when the fifth end section 31 rotates into the first position, the first locking section 321 engages with the second locking section 41, thereby locking the fifth end section 31 in the first position. Compared to conventional cake molds that only compress the ring body by pressing down the clamping plate, the locking device 100 provided in the embodiment of the present application offers greater reliability and helps to reduce the problem of the ring body 200 coming loose during the baking process.

[0023] In some embodiments, the first locking section 321 comprises a groove section and the second locking section 41 comprises hooks. When the fifth end section 31 rotates into the first position relative to the fourth end section 22, the hooks engage in the groove section.

[0024] In some embodiments, the sixth end section 32 covers the second locking element 4 when the fifth end section 31 rotates into the first position relative to the fourth end section 22, and the hooks engage in the groove section along the direction in which the first locking element 3 covers the second locking element 4.

[0025] In some embodiments, the second locking element 4 is provided with a spring element 5. The second locking section 41 comprises a connecting arm 412, which in turn comprises a seventh end section 4121 and an eighth end section 4122, arranged opposite each other. The seventh end section 4121 is rotatably connected to the second locking element 4. The hook is provided on the eighth end section 4122, and the eighth end section 4122 is connected to the spring element 5.The eighth end section 4122 can move back and forth between a locking position and an unlocking position under the drive of the seventh end section 4121, the hook engages in the groove section when the eighth end section 4122 is in the locking position, and the hook releases from the groove section when the eighth end section 4122 is in the unlocking position, and the spring element 5 serves to generate a spring action that opposes a movement of the eighth end section 4122 from the locking position towards the unlocking position.

[0026] With reference to Fig. 5 and Fig. In some embodiments, the seventh end section 4121 is provided with a mounting hole 4121a, and the second locking element 4 is provided with a mounting projection 43. The mounting projection 43 is inserted into the mounting hole 4121a, and the seventh end section 4121 can rotate around the mounting projection 43 through the mounting hole 4121a.

[0027] In some embodiments, the connecting arm 412 includes a connecting section that connects the seventh end section 4121 to the eighth end section 4122. The connecting section is essentially in the form of a long rod and extends from the seventh end section 4121 to the eighth end section 4122.

[0028] With reference to Fig. 7 and Fig. In other embodiments, the second locking element 4 is provided with a spring element 5, and the second locking section 41 comprises a connecting arm 412, the connecting arm 412 comprises a seventh end section 4121 and an eighth end section 4122, which are arranged opposite each other, the seventh end section 4121 is attached to the second locking element 4 and the eighth end section 4122 is connected to the spring element 5.The eighth end section 4122 can perform an elastic bend relative to the seventh end section 4121 in order to move back and forth between the locking position and the unlocking position, and the hooks engage in the groove section when the eighth end section 4122 is in the locking position, the hooks disengage from the groove section when the eighth end section 4122 is in the unlocking position, and the spring element 5 serves to generate a spring action that opposes a movement of the eighth end section 4122 from the locking position towards the unlocking position.

[0029] It is understandable that the seventh end section 4121 can be attached to the second locking element 4 by welding, fastening with fasteners or gluing.

[0030] In some embodiments, the connecting arm 412 essentially has the form of a long plate structure.

[0031] In some embodiments, the connecting arm 412 is made of metal. For example, the connecting arm 412 is made of elastic sheet steel.

[0032] With reference to Fig. 2, Fig. 4 and Fig. In some embodiments, the groove section 5 comprises a first groove section 3211 and a second groove section 3212, which are arranged opposite each other; the number of connecting arms 412 is two; the hooks comprise a first hook 4111 and a second hook 4112; the two connecting arms 412 are arranged opposite each other; and the first hook 4111 and the second hook 4112 are each arranged on the two eighth end sections 4122; the spring element 5 comprises a ninth end section 51 and a tenth end section 52, which are arranged opposite each other; the ninth end section 51 is connected to one eighth end section 4122 and the tenth end section 52 is connected to the other eighth end section 4122; and the first hook 4111 engages in the first groove section 3211 and the second hook 4112 engages in the second groove section 3212.when the fifth end section 31 turns into the first position relative to the fourth end section 22.

[0033] In some embodiments, the spring element 5 serves to generate a spring effect when pressure is applied, which opposes a movement of the eighth end section 4122 from the locking position towards the unlocking position. By pressing the two eighth end sections 4122 arranged against each other, the two eighth end sections 4122 move towards each other, thereby driving the first hook 4111 and the second hook 4112 to bypass the first groove section 3211 and the second groove section 3212, respectively.

[0034] In other embodiments, the number of connecting arms 412 is one, the hooks comprise only the first hook 4111, the groove section comprises only the first groove section 3211, or the hooks comprise only the second hook 4112 and the groove section comprises only the second groove section 3212.

[0035] With reference to Fig. 2, Fig. 5, Fig. 6 and Fig. In some embodiments, the second locking element 4 is provided with a receiving groove 42, and the side wall of the receiving groove 42 has a first opening 421 and a second opening 422 opposite each other, the spring element 5 and the second locking section 41 are both arranged in the receiving groove 42, and the first hook 4111 is passed through the first opening 421 and the second hook 4112 is passed through the second opening 422.

[0036] In some embodiments, the eighth end section 4122 is provided with a pressure section 4122a. Along the ninth end section 51 in the direction of the tenth end section 52, the pressure sections 4122a of the two eighth end sections 4122 are arranged facing away from each other. When the eighth end section 4122 is in the locking position, one pressure section 4122a projects through the first opening 421 from the second locking element 4, and the other pressure section 4122a projects through the second opening 422 from the second locking element 4. The pressure sections 4122a facilitate the user's pressing of the eighth end section 4122.

[0037] In some embodiments, the spring element 5 is a spring.

[0038] In some embodiments, a first limiting projection 4122b and a second limiting projection 4122c are provided between the two eighth end sections 4122, the ninth end section 51 is attached to the first limiting projection 4122b and the tenth end section 52 is attached to the second limiting projection 4122c.

[0039] In some embodiments, the mounting projection 43 protrudes from the bottom of the receiving groove 42.

[0040] With reference to Fig. 7 and Fig. 8. In other embodiments, the second locking element 4 is provided with a receiving groove 42, the spring element 5 and the second locking section 4141 are both arranged in the receiving groove 42, the second locking element 4 further has a first limiting hole 423 and a second limiting hole 424, which are arranged opposite each other along the ninth end section 51 in the direction of the tenth end section 52, and the first hook 4111 is passed through the first limiting hole 423 and the second hook 4112 is passed through the second limiting hole 424.

[0041] In some embodiments, the first hook 4111 and the second hook 4112 are both designed as projection-like structures that are integrally formed with the connecting arm 412. For example, the first hook 4111 is formed by recessing a section of the connecting arm 412 along the thickness direction.

[0042] In some embodiments, the connecting arm 412 is made from a metal plate, and the first hook 4111 and the second hook 4112 are formed by punching the metal plate along the thickness direction.

[0043] In some embodiments, the first locking element 3 comprises a cover wall 33, a first side wall 34, and a second side wall 35. The first side wall 34 and the second side wall 35 are arranged opposite each other, and the cover wall 33 is arranged between the first side wall 34 and the second side wall 35. The first groove section 3211 is arranged on the first side wall 34, and the second groove section 3212 is arranged on the second side wall 35. When the first locking section 321 is locked with the second locking section 41, the first side wall 34 and the second side wall 35 are located along the ninth end section 51 in the direction of the tenth end section 52, each on the two opposite sides of the second locking element 4, with the first limiting hole 423 being aligned with the first groove section 3211 and the second limiting hole 424 being aligned with the second groove section 3212.The first hook 4111 is successively passed through the first limiting hole 423 and the first groove section 3211, and the second hook 4112 is successively passed through the second limiting hole 424 and the second groove section 3212.

[0044] In some embodiments, the eighth end section 4122 is provided with a pressure section 4122a, along the ninth end section 51 in the direction of the tenth end section 52 the pressure sections 4122a of the two eighth end sections 4122 are arranged facing away from each other, the second locking element 4 further has a third limiting hole 425 and a fourth limiting hole 426, which are arranged opposite each other along the ninth end section 51 in the direction of the tenth end section 52, and one of the pressure sections 4122a is passed through the third limiting hole 425 and the other pressure section 4122a is passed through the fourth limiting hole 426.

[0045] In some embodiments, the pressure section 4122a is designed as a projection-like structure that is formed integrally with the connecting arm 412.

[0046] For example, the pressure section 4122a is formed by omitting a section of the eighth end section 4122 along the thickness direction.

[0047] In some embodiments, the connecting arm 412 is made from a metal plate, and the pressure section 4122a is formed by punching the metal plate along the thickness direction.

[0048] In some embodiments, the spring element 5 is formed as a spring sheet bent into a “V” shape, and the bending point of the spring element 5 can produce an elastic deformation so that the ninth end section 51 and the tenth end section 52 can move closer together or further apart.

[0049] In some embodiments, the ninth end section 51 of the spring element is provided with a first plug-in section 511, and the tenth end section 52 of the spring element 5 is provided with a second plug-in section 521. The facing surfaces of the two connecting arms 412 are each provided with a plug-in groove 4122b, and the first plug-in section 511 and the second plug-in section 521 are each inserted into the plug-in grooves 4122b of the two connecting arms 412.

[0050] In some embodiments, the pressure section 4122a is formed by recessing a section of the eighth end section 4122 along the thickness direction, after which the corresponding slot 4122b is formed on the back side of the pressure section 4122a.

[0051] In some embodiments, the first hook 4111 and one of the pressure sections 4122a are arranged successively on a connecting arm 412 along the direction from the seventh end section 4121 to the eighth end section 4122, and the second hook 4112 and the other pressure section 4122a are arranged successively on the other connecting arm 412 along the direction from the seventh end section 4121 to the eighth end section 4122.

[0052] With reference to Fig. 2 to Fig. 4, Fig. 10 and Fig. In some embodiments, the first end section 11 comprises a first clamping plate 111, a first connecting section 112 and a second clamping plate 113, the first clamping plate 111 and the second clamping plate 113 are arranged opposite each other, the first connecting section 112 connects the first clamping plate 111 and the second clamping plate 113, and a first clamping groove 114 for clamping the upper end of the ring body 200 is formed between the first clamping plate 111 and the second clamping plate 113.

[0053] In some embodiments, the third end section 21 comprises a third clamping plate 211, a second connecting section 212 and a fourth clamping plate 213, the third clamping plate 211 and the fourth clamping plate 213 are arranged opposite each other, the second connecting section 212 connects the third clamping plate 211 and the fourth clamping plate 213, and a second clamping groove 214 is formed between the third clamping plate 211 and the fourth clamping plate 213 for clamping the lower end of the ring body 200.

[0054] In some embodiments, the fifth end section 31 has a first connecting hole 311 and a second connecting hole 312, an axis of the first connecting hole 311 runs parallel to an axis of the second connecting hole 312, the second end section 12 has a third connecting hole 121 and the fourth end section 22 has a fourth connecting hole 221, along the axis of the first connecting hole 311 the first connecting hole 311 is aligned with the third connecting hole 121 and the second connecting hole 312 is aligned with the fourth connecting hole 221, the locking device 100 comprises a first connecting shaft 6 and a second connecting shaft 7, the first connecting shaft 6 is passed through the first connecting hole 311 and the third connecting hole 121 and the second connecting shaft 7 is passed through the second connecting hole 312 and the fourth connecting hole 221.

[0055] In some embodiments, the fifth end section 31 comprises a first mounting section 313 and a second mounting section 314, which are arranged opposite each other. The first connecting hole 311 comprises a first hole section 3111 and a second hole section 3112. The first hole section 3111 is arranged on the first mounting section 313, and the second hole section 3112 is arranged on the second mounting section 314. The second connecting hole 312 comprises a third hole section 3121 and a fourth hole section 3122. The third hole section 3121 is arranged on the first mounting section 313, and the fourth hole section 3122 is arranged on the second mounting section 314. A receiving space a is defined between the first mounting section 313 and the second mounting section 314.The section of the second end section 12 provided with the third connecting hole 121 is located in the receiving space a, and the section of the fourth end section 22 provided with the fourth connecting hole 221 is located in the receiving space a. The first connecting shaft 6 is successively guided through the first hole section 3111, the third connecting hole 121 and the second hole section 3112, and the second connecting shaft 7 is successively guided through the third hole section 3121, the fourth connecting hole 221 and the fourth hole section 3122.

[0056] In some embodiments, the first connecting element 1 is formed by bending a strip-shaped metal sheet.

[0057] In some embodiments, the second connecting element 2 is formed by bending a strip-shaped metal sheet.

[0058] In some embodiments, the first connecting element 1 and the second connecting element 2, without being limited thereto, are made of stainless steel 304.

[0059] In some embodiments, the locking device 100 comprises a connecting bolt 8, and the connecting bolt 8 passes through the second connecting element 2 and is screwed and fastened to the second locking element 4.

[0060] With reference to Fig. 1 and Fig. 3 The present application further provides, on the basis of the same inventive concept, a cake mold 1000 comprising a ring body 200 and the locking device 100 according to one of the embodiments described above.

[0061] In some embodiments, the ring body 200 comprises an eleventh end section 201 and a twelfth end section 202. Along the radial direction of the ring body 200, the eleventh end section 201 and the twelfth end section 202 overlap at least partially. The overlap section 2011 of the eleventh end section 201 and the twelfth end section 202, as well as the overlap section 2021 of the twelfth end section 202 and the eleventh end section 201, form the overlap section 203 of the ring body 200. The eleventh end section 201 and the twelfth end section 202 can slide relative to each other about the axis of the ring body 200, thereby increasing or decreasing the overlap area of ​​the eleventh end section 201 and the twelfth end section 202 and thus increasing or decreasing the diameter of the ring body 200.

[0062] In some embodiments, the ring body 200 is formed by rolling a stainless steel sheet.

[0063] In some embodiments, the cake mold 1000 includes a limiting ring 300, and the limiting ring 300 is placed on the overlapping section 203 of the ring body 200. The limiting ring 300 serves to limit the overlapping section 203 of the ring body 200 in the axial direction of the ring body 200.

[0064] In some embodiments, the fourth end section 22 is attached to the outer circumferential wall of the ring body 200. Attaching the fourth end section 22 to the outer circumferential section of the ring body 200 helps to reduce the problem that the second locking element 4 causes the fourth end section 22 to wobble relative to the ring body 200 when the first locking section 321 is not locked to the second locking section 41.

[0065] In some embodiments, the fourth end section 22 is attached to the outer circumferential wall of the ring body 200 by welding. It is understood that in other embodiments, the fourth end section 22 can also be attached to the ring body 200 by means such as gluing or riveting.

[0066] The above-mentioned descriptions merely represent embodiments of the present application and do not limit the scope of the claims. All equivalent structural or procedural modifications made using the description and accompanying drawings of this application, or applied directly or indirectly in other related technical fields, also fall within the scope of the claims of the present application.

[0067] The present application relates to the technical field of cake molds and discloses a locking device and a cake mold. The locking device comprises a first connecting element, a second connecting element, a first locking element, and a second locking element. The first end section of the first connecting element serves to clamp the upper end of an annular body. The third end section of the second connecting element serves to clamp the lower end of the annular body. The fifth end section of the first locking element is rotatably connected to the fourth end section of the second connecting element. The fifth end section is connected to the second end section of the first connecting element. The fifth end section can rotate about the axis of rotation relative to the fourth end section. The sixth end section of the first locking element has a first locking section.The second locking element has a second locking section. When the fifth end section rotates into a first position relative to the fourth end section, the first and second locking sections are locked, and the fifth end section exerts a tensile force on the second and fourth end sections, respectively, to cause the first end section to move closer to the third end section. By the above approach, the embodiments of the present application help to reduce the problem of the ring body coming loose during the baking process.

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