Rotary locking structure and air supply equipment

Abstract

This application relates to a rotary locking structure and an air supply device, belonging to the field of folding technology. The rotary locking structure includes a locking gear, a pawl, and a locking tooth block. The locking gear is installed at the connection point where the first connecting member and the second connecting member are rotatably connected, and is configured to rotate relative to the second connecting member following the rotation of the first connecting member. The pawl is installed inside the second connecting member, with one end rotatably connected to the second connecting member. The locking tooth block is fixed to the end of the pawl away from the second connecting member, and the locking tooth block can engage or disengage with the locking gear following the rotation of the pawl. This application can reduce wear during rotation and improve the service life of the rotary locking structure.

Description

Technical Field

[0001] This application relates to the field of folding technology, and in particular to a rotary locking structure and an air supply device. Background Technology

[0002] Folding fans, with their foldable structure, allow for easy storage when not in use, saving space and making them convenient to carry and move. However, because the folding mechanism of a folding fan requires frequent use, it is prone to excessive wear and tear during repeated folding and unfolding, which can lead to failure. Utility Model Content

[0003] Therefore, it is necessary to provide a rotary locking structure and air supply device to address the problem of folding fans failing due to excessive wear.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] In a first aspect, embodiments of this application provide a rotation locking structure disposed at the rotational connection between a first connector and a second connector, the rotation locking structure comprising:

[0006] A locking gear is installed at the connection point where the first connector and the second connector are rotatably connected, and is configured to rotate relative to the second connector following the first connector;

[0007] A chuck is installed inside the second connector, with one end rotatably connected to the second connector.

[0008] A locking tooth block is fixed to the end of the pawl away from the second connector. The locking tooth block can engage or disengage with the locking gear as the pawl rotates.

[0009] Through the above design, the rotation of the pawl enables the locking tooth block to engage or disengage with the locking gear, allowing the locking tooth block and the locking gear to engage intermittently, reducing wear during rotation and extending the service life of the rotary locking structure.

[0010] In one embodiment of the first aspect, the rotary locking structure further includes a magnetic attraction component and an iron block, the iron block being mounted on one end of the pawl where the locking tooth block is located, the magnetic attraction component being controllably capable of generating a magnetic attraction force on the iron block, so that the locking tooth block follows the iron block to rotate until it separates from the locking gear.

[0011] Through the above design, the rotation of the pawl can be automatically controlled, thereby quickly separating the locking tooth block from the locking gear.

[0012] In one embodiment of the first aspect, the magnetic attraction assembly includes a circuit board and an electromagnet, the electromagnet being mounted on the circuit board, the circuit board being able to acquire a flip signal and control the electromagnet to be energized to generate a magnetic attraction force.

[0013] With the above design, the circuit board can automatically control the energization state of the electromagnet by turning on the electromagnet according to the flip signal, thereby driving the chuck to rotate.

[0014] In one embodiment of the first aspect, the rotary locking structure further includes a reset member, the two ends of which are respectively connected to the pawl and the second connecting member to generate a pulling force on the pawl to move closer to the locking gear.

[0015] With the above design, when the magnetic force of the electromagnet disappears, the reset member pulls the pawl to reset, so that the locking tooth block meshes with the locking gear, thereby locking the first connecting member.

[0016] In one embodiment of the first aspect, the pawl includes a first end, a second end, and a third end, the first end being rotatably connected to the second connector, the second end being connected to the reset member, and the locking tooth block being fixed between the second end and the third end.

[0017] Through the above design, a stable assembly structure is formed, which enables the locking tooth block to rotate about the axis of the first end and has a certain range of motion.

[0018] In one embodiment of the first aspect, the rotary locking structure further includes a pivot pin that passes through the first end and the second connector to enable the pawl to rotate along the axis of the pivot pin.

[0019] Through the above design, the pivot pin rotatably mounts the chuck into the second connector.

[0020] In one embodiment of the first aspect, the rotary locking structure further includes a plurality of limiting pieces, each of which is respectively installed on two opposite ends of the rotary pin.

[0021] The above design restricts the installation position of the pawl, thereby confining the pawl to one side of the locking gear, so that the locking tooth block can mesh stably with the locking gear.

[0022] In one embodiment of the first aspect, the rotary locking structure further includes a retaining ring, and the end of the pivot pin has a retaining groove, in which the retaining ring is engaged.

[0023] The above design reduces the axial displacement of the pivot pin, preventing it from detaching from the second connector during long-term operation and further improving the installation stability of the jaw.

[0024] Secondly, this application also provides an air supply device, including the rotary locking structure, first connector and second connector described in any of the above embodiments, wherein the first connector is a head assembly and the second connector is a body assembly, and the rotary locking structure is installed at the rotary connection between the head assembly and the body assembly.

[0025] The above design enables the effective folding of the head assembly and automatically locks the current position of the head assembly.

[0026] In one embodiment of the second aspect, the air supply device is a fan or a heater.

[0027] In one embodiment of the second aspect, the head assembly is equipped with a button that is electrically connected to a magnetic component, the magnetic component being capable of power-on / off control based on the pressed state of the button.

[0028] The above design allows users to simultaneously rotate and adjust the head assembly while pressing, making operation more convenient.

[0029] Compared to related technologies, the advantages of this application are as follows: This application provides a rotary locking structure and an air supply device. The rotary locking structure includes a locking gear and a pawl. The locking gear is mounted on a first connecting member and can move with the first connecting member. One end of the pawl is rotatably connected to a second connecting member, and the other end is provided with a locking tooth block that engages with the locking gear. Thus, when the first connecting member needs to be rotated, simply separating the end of the pawl with the locking tooth block from the locking gear allows the first connecting member to rotate relative to the second connecting member, enabling the first connecting member to open or fold. When the first connecting member rotates to a set angle, the locking tooth block engages with the locking gear, locking the first connecting member and restricting further rotation. This application reduces wear during rotation and extends the service life of the rotary locking structure through the intermittent engagement of the locking tooth block and the locking gear. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 The following are schematic diagrams of the air supply equipment in some embodiments of this application;

[0032] Figure 2 for Figure 1 A magnified schematic diagram of the local structure;

[0033] Figure 3 This is an exploded view of the nose assembly in some embodiments of this application;

[0034] Figure 4 The following are schematic diagrams of the magnetic suction components in some embodiments of this application;

[0035] Figure 5 This is a schematic diagram of the claw structure in some embodiments of this application;

[0036] Figure 6 This is a schematic diagram of the respinning structure in some embodiments of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the connector in some embodiments of this application;

[0038] Figure 8 The diagram shows the structure of the bracket in some embodiments of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1000. Air supply equipment;

[0041] 100. Rotary locking structure; 110. Locking gear; 120. Claw; 121. First end; 122. Second end; 123. Third end; 130. Locking tooth block; 140. Magnetic suction assembly; 141. Circuit board; 142. Electromagnet; 150. Reset component; 160. Turning pin; 170. Limiting piece; 180. Snap ring; 190. Iron block;

[0042] 200. Head assembly; 210. Bracket; 211. Shaft;

[0043] 300. Fuselage assembly; 310. Connecting base; 311. Connecting part; 312. Mounting slot; 213. Receiving slot. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0045] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0050] See Figure 1 As shown, an embodiment of this application provides a rotation locking structure 100, which is disposed at the rotational connection between the first connector and the second connector, so that the first connector can rotate freely relative to the second connector when it is not locked, and the current state of the first connector is locked when the first connector rotates to a specified position.

[0051] It is understood that the first connector can be a working part of the device or equipment, and the second connector can be a supporting part of the device or equipment, thereby enabling the device or equipment to be unfolded and folded for storage through the rotation of the first connector. For ease of understanding, in this embodiment, the rotating locking structure 100 uses a circulating fan as the application carrier, the first connector is the head assembly 200 for air supply, and the second connector is the body assembly 300 for support. However, the circulating fan is only used as an example carrier for illustration. The rotating locking structure 100 provided in this application can also be applied to other devices, such as heaters, etc., which will not be listed here.

[0052] Continue reading Figure 2 As shown, specifically, the rotary locking structure 100 includes a locking gear 110, a pawl 120, and a locking tooth block 130. The locking gear 110 is mounted at the rotatable connection between the first and second connecting members and is configured to rotate relative to the second connecting member following the rotation of the first connecting member. The pawl 120 is mounted inside the second connecting member, with one end rotatably connected to it. The locking tooth block 130 is fixed to the end of the pawl 120 away from the second connecting member, and the locking tooth block 130 can engage or disengage with the locking gear 110 following the rotation of the pawl 120.

[0053] For example, since one end of the pawl 120 is rotatably mounted on the second connector, and one end of the pawl 120 with the locking tooth block 130 can rotate relative to the second connector, the locking tooth block 130 can be engaged or disengaged from the locking gear 110 through the rotation of the pawl 120. When the first connector needs to be flipped and adjusted, the pawl 120 is controlled to drive the locking tooth block 130 to disengage from the locking gear 110, at which time the first connector can drive the locking gear 110 to rotate arbitrarily. When the first connector rotates to a set position, the pawl 120 is controlled to drive the locking tooth block 130 to engage with the locking gear 110. At this time, under the restriction of the locking tooth block 130, the locking gear 110 cannot continue to rotate, thereby restricting the flipping of the first connector and locking the current position of the first connector.

[0054] Continue reading Figure 3 As shown, in some embodiments, the rotary locking structure 100 further includes a magnetic attraction component 140 and an iron block 190. The iron block 190 is installed at one end of the pawl 120 where the locking tooth block 130 is provided. The magnetic attraction component 140 can controllably generate a magnetic attraction force on the iron block 190 so that the locking tooth block 130 follows the iron block 190 to rotate until it is separated from the locking gear 110.

[0055] Specifically, the magnetic attraction component 140 can controllably generate and demagnetize magnetic force. By fixing the iron block 190 to the chuck 120, when the first connecting member needs to rotate, the magnetic attraction component 140 applies a magnetic attraction force to the iron block 190. At this time, under the action of the magnetic attraction force, one end of the chuck 120 with the locking tooth block 130 rotates under the drive of the iron block 190, thereby causing the locking tooth block 130 to separate from the locking gear 110, and the first connecting member can rotate relative to the second connecting member. When the first connecting member reaches the set position, the magnetic attraction component 140 no longer generates magnetic attraction force, the locking tooth block 130 resets, and locks the locking gear 110.

[0056] Continue reading Figure 4 As shown, the magnetic attraction assembly 140 further includes a circuit board 141 and an electromagnet 142. The electromagnet 142 is mounted on the circuit board 141. The circuit board 141 can acquire a flip signal and control the electromagnet 142 to be energized to generate a magnetic attraction force.

[0057] Specifically, the circuit board 141 can control the energization state of the electromagnet 142, and then conduct the circuit of the electromagnet 142 according to the flip signal. When the electromagnet 142 is energized, it generates a magnetic field, and then attracts the iron block 190 through magnetic attraction, driving the chuck 120 to rotate.

[0058] For example, in the application of a circulating fan, the circulating fan is provided with an operation button, which is electrically connected to the circuit board 141. When it is necessary to flip the first connector, the button can be pressed first. The circuit board 141 senses the button pressing signal, energizes the electromagnet 142, and then attracts the locking pin, so that the locking tooth block 130 separates from the locking gear 110.

[0059] Furthermore, the rotary locking structure 100 also includes a reset member 150, the two ends of which are connected to the pawl 120 and the second connector, respectively, to generate a pulling force on the pawl 120 to move closer to the locking gear 110.

[0060] For example, the reset member 150 is a tension spring, one end of which is fixed inside the second connector, and the other end is connected to the pawl 120 to apply tension to the pawl 120, causing the pawl 120 to tend to move closer to the locking gear 110. When the first connector reaches the set position, the circuit board 141 disconnects the circuit of the electromagnet 142, and the magnetic force of the electromagnet 142 disappears. At this time, the reset member 150 pulls the pawl 120 to reset, causing the locking tooth block 130 to engage with the locking gear 110, thereby locking the first connector.

[0061] Understandably, the pawl 120 and the magnetic assembly 140 can have two installation positions. In one embodiment, one end of the pawl 120 with the locking tooth block 130 is located above the direction of gravity of the locking gear 110. In this case, the magnetic assembly 140 is positioned above the pawl 120, and the reset member 150 is positioned below the pawl 120. Thus, when the first connecting member needs to be flipped, the magnetic assembly 140 exerts an upward magnetic attraction force on the pawl 120, and the magnetic attraction force is greater than the pulling force of the reset member 150, causing the locking tooth block 130 to move upward and separate from the locking gear 110. When the magnetic force of the magnetic assembly 140 disappears, the reset member 150 applies a downward pulling force to the locking tooth block 130, causing the locking tooth block 130 to engage and lock with the locking gear 110.

[0062] In another embodiment, when the end of the pawl 120 with the locking tooth block 130 is located above the direction of gravity of the locking gear 110, the reset member 150 may not be provided. When the magnetic force of the magnetic attraction assembly 140 disappears, the locking tooth block 130 can fall onto the locking gear 110 under the action of gravity, so as to engage and lock the locking tooth block 130 with the locking gear 110.

[0063] In another embodiment, the end of the chuck 120 with the locking tooth block 130 is located below the direction of gravity of the locking gear 110. In this case, the magnetic attraction assembly 140 is positioned below the chuck 120, and the reset member 150 is positioned above the chuck 120. Thus, when the first connecting member needs to be flipped, the magnetic attraction assembly 140 exerts a downward magnetic attraction force on the chuck 120, and this magnetic attraction force is greater than the pulling force of the reset member 150, causing the locking tooth block 130 to move downward and separate from the locking gear 110. When the magnetic force of the magnetic attraction assembly 140 disappears, the reset member 150 applies an upward pulling force to the locking tooth block 130, causing the locking tooth block 130 to engage and lock with the locking gear 110.

[0064] Continue reading Figure 5 As shown, in some embodiments, the pawl 120 includes a first end 121, a second end 122 and a third end 123. The first end 121 is rotatably connected to the second connector, the second end 122 is connected to the reset member 150, and the locking tooth block 130 is fixed between the second end 122 and the third end 123.

[0065] Specifically, the pawl 120 has a triangular-like structure, with the first end 121 rotatably connected to the second connector, and the locking tooth block 130 installed on the sides of the second end 122 and the third end 123 to form a stable assembly structure. Furthermore, the locking tooth block 130 can rotate about the axis of the first end 121 and has a certain range of motion.

[0066] Continue reading Figure 6 As shown, in some embodiments, the rotation locking structure 100 further includes a pivot pin 160 that passes through the first end 121 and the second connector so that the pawl 120 can rotate along the axis of the pivot pin 160.

[0067] See Figure 7 As shown, exemplarily, the second connector includes a connector base 310, and the first connector is rotatably mounted on the connector base 310. The connector base 310 has an internal mounting groove 312, and the first end 121 of the claw 120 is disposed in the mounting groove 312. The pivot pin 160 passes through the groove wall of the mounting groove 312 and the first end 121 in sequence to rotatably mount the claw 120 in the connector base 310.

[0068] Furthermore, the rotary locking structure 100 also includes a plurality of limiting pieces 170, each of which is installed on the two opposite ends of the pivot pin 160.

[0069] For example, two limiting pieces 170 are provided and pass through opposite ends of the pivot pin 160, while the pawl 120 is located between the two limiting pieces 170. In this way, by adjusting the position of the two limiting pieces 170 on the pivot pin 160, the installation position of the pawl 120 can be restricted, thereby restricting the pawl 120 to one side of the locking gear 110, so that the locking tooth block 130 can stably mesh with the locking gear 110.

[0070] Furthermore, the rotary locking structure 100 also includes a retaining ring 180, and the end of the pivot pin 160 is provided with a retaining groove, in which the retaining ring 180 is engaged. By restricting the pivot pin 160, the axial displacement of the pivot pin 160 is reduced, preventing the pivot pin 160 from disengaging from the connecting seat 310 during long-term operation, and further improving the installation stability of the pawl 120.

[0071] See again Figure 1 As shown, embodiments of this application also provide an air supply device 1000, including a rotary locking structure 100, a first connector, and a second connector as described in any of the above embodiments. The first connector is a head assembly 200, and the second connector is a body assembly 300. The rotary locking structure 100 is installed at the rotary connection between the head assembly 200 and the body assembly 300.

[0072] Specifically, the head unit 200 is used to supply airflow to the user, and the body unit 300 is used to support the head unit 200 on the ground. By adjusting the rotation locking structure 100, the head unit 200 can be flipped, such as for adjusting the air outlet angle during operation or folding for storage.

[0073] This embodiment has the rotation locking structure 100 of any of the above embodiments, and therefore has all the beneficial effects of the rotation locking structure 100 of any of the above embodiments, which will not be described in detail here.

[0074] Furthermore, the air supply equipment 1000 is a fan or a heater.

[0075] In some embodiments, the head assembly 200 is equipped with a button that is electrically connected to the magnetic assembly 140, which is capable of controlling the power supply of the button according to the pressed state of the button.

[0076] Combination Figure 7 and Figure 8As shown, exemplarily, the head assembly 200 includes a bracket 210. Two rotating shafts 211 are positioned opposite each other at the bottom of the bracket 210. A connecting seat 310 has a connecting portion 311, and two symmetrically arranged receiving slots 213 are formed on both sides of the connecting portion 311. When assembled with the bracket 210, the two rotating shafts 211 are respectively installed in one of the corresponding receiving slots 213, allowing the bracket 210 to rotate along the axis of the rotating shafts 211. A meshing gear is installed on the side of one rotating shaft 211 near the connecting portion 311, while a button can be installed on the side of the other rotating shaft 211 away from the connecting portion 311. Thus, when rotation of the head assembly 200 is required, pressing the button will trigger the magnetic component 140 to sense and attract the claw 120. Since the button is located at the connection between the head assembly 200 and the body assembly 300, it allows the user to simultaneously adjust the rotation of the head assembly 200 while pressing, making operation more convenient.

[0077] Furthermore, the air supply equipment 1000 may also be equipped with another locking mechanism, and the locking control is achieved through the structure of a button, so as to further improve the flipping and folding effect of the head assembly 200. When the locking mechanism fails, the rotary locking structure 100 provided in this application can still provide a supplementary solution, and the locking control of the head assembly 200 can be achieved by combining the button.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rotary locking structure, disposed at the rotary connection between a first connector and a second connector, characterized in that, The rotation locking structure includes: A locking gear is installed at the connection point where the first connector and the second connector are rotatably connected, and is configured to rotate relative to the second connector following the first connector; A chuck is installed inside the second connector, with one end rotatably connected to the second connector. A locking tooth block is fixed to the end of the pawl away from the second connector. The locking tooth block can engage or disengage with the locking gear as the pawl rotates.

2. The rotational locking structure of claim 1, wherein, The rotary locking structure also includes a magnetic attraction component and an iron block. The iron block is installed at the end of the pawl where the locking tooth block is located. The magnetic attraction component can be controlled to generate a magnetic attraction force on the iron block, so that the locking tooth block follows the iron block to rotate until it separates from the locking gear.

3. The rotational locking structure of claim 2, wherein, The magnetic attraction component includes a circuit board and an electromagnet. The electromagnet is mounted on the circuit board. The circuit board can acquire a flip signal and control the electromagnet to be energized to generate a magnetic attraction force.

4. The rotational locking structure of claim 2, wherein, The rotary locking structure also includes a reset member, the two ends of which are connected to the pawl and the second connecting member, respectively, to generate a pulling force on the pawl to move closer to the locking gear.

5. The rotational locking structure of claim 4, wherein, The chuck includes a first end, a second end, and a third end. The first end is rotatably connected to the second connector, the second end is connected to the reset member, and the locking tooth block is fixed between the second end and the third end.

6. The rotational locking structure of claim 5, wherein, The rotary locking structure further includes a pivot pin that passes through the first end and the second connector, so that the pawl can rotate along the axis of the pivot pin.

7. The rotational locking structure of claim 6, wherein, The rotary locking structure also includes multiple limiting pieces, each of which is installed on opposite ends of the rotary pin.

8. The rotational locking structure of claim 6, wherein, The rotary locking structure also includes a retaining ring, and the end of the pivot pin has a retaining groove, in which the retaining ring is engaged.

9. An air supply device, characterized by The device includes a rotary locking structure as described in any one of claims 1 to 8, a first connector and a second connector, wherein the first connector is a head assembly and the second connector is a body assembly, and the rotary locking structure is installed at the rotary connection between the head assembly and the body assembly.

10. The air supply device according to claim 9, characterized in that The air supply equipment is a fan or a heater.

11. The air supply device according to claim 9, characterized in that The head assembly is equipped with a button, which is electrically connected to a magnetic component. The magnetic component can control the power supply according to the button's pressed state.

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