Locking structure and gas injection device

Abstract

The utility model relates to a locking structure and a gas injection device. The locking structure comprises a mounting seat and a locking part, the locking assembly comprises a rotating seat, a rotating shaft, a locking block and a limiting ring, the rotating seat is provided with a first through hole used for being matched with the air inlet end of the part to be subjected to air injection, the rotating seat comprises a first connecting end and a second connecting end, the first connecting end is rotationally connected with the mounting seat through the rotating shaft, and the peripheral wall of the second connecting end is provided with a limiting hole communicating with the first through hole; the locking block is movably arranged in the limiting hole, the limiting ring is movably arranged on the outer side of the second connecting end in a sleeving mode, the inner side wall of the limiting ring abuts against the locking block in a sliding mode, and when the rotating base rotates, the limiting ring is driven to move in the axial direction of the first through hole relative to the rotating base and at least has a locking position and a releasing position. And when the limiting ring moves from the release position to the locking position, the locking block can be driven to move in the direction close to the central axis of the first through hole so as to lock the gas inlet end of the part to be subjected to gas injection.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a locking structure and an air injection device. Background Technology

[0002] Gas injection devices are widely used in daily life and modern industrial production, including but not limited to food production, medical equipment, packaging and transportation, chemical production, and the automotive repair industry. The operation of gas injection devices typically involves the release and transmission of high-pressure gas. Therefore, to ensure a secure connection between the part to be injected and the injection nozzle of the device, and to prevent excessive gas pressure during injection that could cause the part to loosen and lead to safety accidents, many gas injection devices on the market currently use a threaded connection between the injection nozzle and the part to be injected. This is cumbersome and time-consuming, potentially degrading the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a locking structure and a gas injection device to address the problem that many gas injection devices on the market currently use threaded connections between the gas injection nozzle and the part to be injected, which is cumbersome and time-consuming to operate.

[0004] A locking structure includes: a mounting base for connecting to a main unit; and a locking assembly including a rotating base, a rotating shaft, a locking block, and a limiting ring. The rotating base has a first through hole along its length, the first through hole being adapted to be installed with the air inlet end of a component to be injected to connect the component to a gas supply device. The rotating base includes a first connecting end and a second connecting end opposite to each other. The first connecting end is rotatably connected to the mounting base via the rotating shaft, the rotating shaft extending radially along the first through hole. The peripheral wall of the second connecting end has a locking mechanism that... The first through hole connects to the limiting hole, the locking block is movably disposed in the limiting hole, the limiting ring is movably sleeved on the outside of the second connecting end, the inner sidewall of the limiting ring slides against the locking block, the rotating seat is configured to rotate so that when it rotates, it drives the limiting ring to move relative to the rotating seat along the axial direction of the first through hole and has at least a locked position and a released position, and when the limiting ring moves from the released position to the locked position, it can drive the locking block to move towards the central axis of the first through hole to lock the air inlet end of the gas injection component.

[0005] This application provides a locking structure. When the user installs the air inlet end of the component to be injected with the first through hole of the rotating seat and operates the component to be injected to rotate the rotating seat relative to the mounting seat, the limiting ring sleeved on the outer side of the second connecting end of the rotating seat can be driven to move axially along the first through hole. Since the inner sidewall of the limiting ring slides against the locking block in the limiting hole of the second connecting end, the movement of the limiting ring can be used to adjust the relative distance between the locking block and the central axis of the first through hole, so that the locking block can lock or release the air inlet end of the component to be injected. Specifically, the limiting ring has at least a locked position and a released position relative to the rotating seat. When the limiting ring moves from the released position to the locked position, it presses against the locking block, causing the locking block to approach the central axis of the first through hole and restrict interference with the air inlet end of the component to be injected, thus forming a locking relationship. When the limiting ring moves from the locked position to the released position, the maximum movement distance between the locking block and the central axis of the first through hole increases under the movement relationship of the limiting ring. Therefore, when the user pulls out the component to be injected, the locking block can be easily pushed open and automatically release the restriction on the component to be injected, realizing easy removal of the component to be injected. By adopting the locking structure of this application, and utilizing the cooperation of the mounting seat and the locking component, the user can easily complete the installation and removal of the component to be injected with a simple swinging motion, making the operation convenient and quick, thereby greatly improving the user experience.

[0006] In one embodiment, the inner sidewall of the limiting ring has an abutment portion for sliding contact with the locking block. The distance between the abutment portion and the central axis of the first through hole increases or decreases along the extending direction of the abutment portion. By adopting the above structure, when the limiting ring moves radially along the first through hole, the relative position between the locking block and the abutment portion will change. Since the distance between the abutment portion and the central axis of the first through hole is different at different positions, the maximum movement distance between the locking block and the central axis of the first through hole will also change when the limiting ring moves. Specifically, when the limiting ring is in the locked position, the maximum movement distance between the locking block and the central axis of the first through hole is the smallest. The locking block cannot be pushed away under the abutment restriction of the limiting ring, thus maintaining interference restriction on the air inlet end of the air-injecting component. When the limiting ring is in the released position, since the distance between the abutment part and the locking block relative to the central axis of the first through hole increases, the maximum movement distance between the locking block and the central axis of the first through hole increases. When the air-injecting component is pulled out, the locking block can be easily pushed to move away from the central axis of the first through hole to release the restriction on the air-injecting component.

[0007] In one embodiment, the outer peripheral wall of the rotating seat forms a limiting shaft, and the mounting seat is provided with a first slot and a second slot. When the limiting ring is in the released position, the limiting shaft engages with the first slot; when the limiting ring is in the locked position, the limiting shaft engages with the second slot. By adopting the above structure, when the rotating seat rotates, it will cause the limiting shaft to slide relative to the mounting seat. By using the limiting shaft to engage with the first or second slot on the mounting seat, a limiting effect can be achieved on the rotation of the rotating seat. This helps the user ensure that the operation is in place and maintained in the current rotation position when rotating the rotating seat, and also provides support so that the mounting seat can better support the movement of the locking component and the component to be injected.

[0008] In one embodiment, the first slot and the second slot are circumferentially spaced along the axis of rotation.

[0009] In one embodiment, the number of the locking blocks is at least two, and the at least two locking blocks are distributed circumferentially at intervals along the first through hole.

[0010] In one embodiment, the mounting base is provided with an arc-shaped groove extending along the height direction of the mounting base. The distance between the arc-shaped groove and the rotating shaft increases or decreases along the extension direction of the arc-shaped groove. A connecting shaft is formed on the outer peripheral wall of the limiting ring. The connecting shaft is slidably inserted into the arc-shaped groove. The connecting shaft is configured to move along the arc-shaped groove, causing the limiting ring to switch between the release position and the locking position. By adopting the above structure, since the distance between the arc-shaped groove and the rotating shaft increases or decreases along the extension direction of the arc-shaped groove, when the rotating base rotates, it will cause the connecting shaft of the limiting ring to slide along the arc-shaped groove. Thus, under the limiting action of the arc-shaped groove, the limiting base will move along the axial direction of the first through hole to match the change in the distance between the connecting shaft and the rotating shaft.

[0011] In one embodiment, the arc-shaped groove has a first end and a second end, the first end being at a higher horizontal level than the second end. When the connecting shaft is located at the first end, the limiting ring is in the release position; when the connecting shaft is located at the second end, the limiting ring is in the locking position. By employing this structure, when the user installs the gas-injection component, they can rotate the component and the rotating seat downwards to move the limiting ring from the release position to the locking position, thus locking the component. This operation lowers the center of gravity of the component, making the gas injection operation safer.

[0012] In one embodiment, the outer peripheral side of the rotating seat away from the second connecting end has a raised mounting step. The locking assembly also includes a limiting seat, which is disposed on the mounting step and located on the side of the limiting ring away from the second connecting end. The limiting seat has a limiting groove along the axial direction of the first through hole, and the connecting shaft extends into the arc-shaped groove through the limiting groove. By adopting the above structure, the limiting seat is used to limit the movement of the limiting ring, ensuring that the limiting ring can be stably installed and maintain abutting contact with the locking block. Furthermore, the limiting seat has a limiting groove axially aligned with the first through hole. By utilizing the cooperation between the connecting shaft and the limiting groove, the movement direction of the limiting ring can be limited, preventing the limiting ring from deflecting.

[0013] In one embodiment, the end of the limiting seat away from the mounting step is provided with a locking part, which is used to engage with the gas-injecting component. The locking part provides a certain limiting effect for the installation of the gas-injecting component, making it easier for the user to confirm that the component is installed correctly, and preventing the component from immediately loosening after the locking block releases its restriction.

[0014] In one embodiment, a second through hole is formed at the end of the limiting seat away from the mounting step. The second through hole is coaxially arranged with the first through hole and is used to fit and install with the air inlet end of the component to be injected. The inner sidewall of the second through hole is provided with the snap-fit ​​portion. By adopting the above structure, the air inlet end of the component to be injected will extend into the first through hole through the second through hole. The second through hole will cooperate with the first through hole to strengthen the connection with the component to be injected, ensuring that the gas injection operation can be carried out safely and that the component to be injected will not loosen due to gas pressure impact, thus preventing accidents.

[0015] In one embodiment, the locking assembly further includes a spring assembly. The limiting ring is connected to the mounting step and / or the limiting seat via the spring assembly. When the limiting ring moves from the release position to the locking position, the spring assembly deforms and accumulates elastic restoring force. By providing the spring assembly, when the limiting ring moves from the release position to the locking position, the spring assembly deforms and possesses elastic potential energy. Therefore, when the user needs to rotate the rotating seat to the starting position to remove the gas-filled component, the spring assembly makes the reset rotation of the rotating seat easier and less strenuous. Furthermore, the spring assembly provides resistance to the limiting ring as it moves from the release position to the locking position, thereby reducing the occurrence of accidental rotation of the rotating seat under non-human operation.

[0016] In one embodiment, the mounting base includes a first housing and a second housing, which are detachably connected. The first housing and the second housing enclose a mounting space, and the first connecting end extends into the mounting space and is rotatably connected to the first housing and / or the second housing via the pivot. By adopting the above structure, and by providing a mounting space enclosed by the detachably connected first housing and the second housing for installing the locking component, the installation of the locking component can be facilitated, and a certain degree of protection can be provided.

[0017] The second aspect of this application discloses a gas injection device.

[0018] An injection device includes: a main unit; the aforementioned locking structure, which is disposed on the main unit; a component to be injected, which is detachably connected to the locking structure; and a gas supply device, which is disposed on the main unit and connected to the locking structure. The gas supply device communicates with the component to be injected through a first through hole to introduce gas into the component. The second aspect of this application discloses an injection device that, by employing the locking structure of any of the aforementioned methods, allows a limiting ring sleeved on the outer side of the second connecting end of the rotating seat to move axially along the first through hole when the user adapts and installs the inlet end of the component to be injected with the first through hole of the rotating seat, and operates the component to rotate the rotating seat relative to the mounting seat. Since the inner wall of the limiting ring slides against the locking block in the limiting hole of the second connecting end, the movement of the limiting ring can be used to adjust the relative distance between the locking block and the central axis of the first through hole, enabling the locking block to lock or release the inlet end of the component to be injected. By adopting the locking structure of this application, and utilizing the cooperation of the mounting base and locking components, users can easily complete the installation and removal of the gas-filled component with a simple swinging motion, making the operation convenient and quick, thereby greatly improving the user experience.

[0019] Furthermore, the aeration device can be a cream machine or a sparkling water machine, and the component to be aerated can be a cream bottle or a water bottle.

[0020] In one embodiment, a valve assembly is further included, which is disposed on the locking structure and is used to control the opening and closing of the first through hole. Attached Figure Description

[0021] Figure 1 A perspective view of an air injection device according to one embodiment;

[0022] Figure 2 An exploded view of the locking structure according to one embodiment;

[0023] Figure 3 An exploded view of a locking component according to one embodiment;

[0024] Figure 4 This is a first cross-sectional view of an air injection device according to one embodiment (with the limiting ring in the locked position);

[0025] Figure 5 for Figure 4 Enlarged view of region A;

[0026] Figure 6 This is a second cross-sectional view of an air injection device according to one embodiment (with the limiting ring in the release position);

[0027] Figure 7 for Figure 6 Enlarged view of region B;

[0028] Figure 8 This is a third cross-sectional view of an air injection device according to one embodiment (with the limiting ring in the release position);

[0029] Figure 9 for Figure 8 A magnified view of region C.

[0030] The correspondence between the reference numerals and the component names is as follows:

[0031] 100-locking structure;

[0032] 1 Mounting base, 101 Mounting space, 102 First slot, 103 Second slot, 104 Arc-shaped slide, 1041 First end, 1042 Second end, 11 First housing, 12 Second housing;

[0033] 2 Locking assembly, 201 First through hole, 202 Limiting hole, 203 Limiting slide groove, 204 Second through hole, 21 Rotating seat, 211 First connecting end, 212 Second connecting end, 213 Limiting shaft, 214 Mounting step, 22 Rotating shaft, 23 Locking block, 24 Limiting ring, 241 Abutting part, 242 Connecting shaft, 25 Limiting seat, 26 Snap-fitting part, 27 Spring assembly;

[0034] 200 host;

[0035] 300 is the part to be injected with gas, 310 is the air inlet end;

[0036] 400 gas supply unit;

[0037] 500 air valve assembly. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0040] The locking structure of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0041] like Figures 1 to 9 As shown, this embodiment discloses a locking structure, including: a mounting base 1 for connecting to a host; and a locking assembly 2, which includes a rotating base 21, a rotating shaft 22, a locking block 23, and a limiting ring 24. The rotating base 21 has a first through hole 201 along its length, which is used to be fitted and installed with the air inlet end of the component to be injected to connect the component to the air supply device. The rotating base 21 includes a first connecting end 211 and a second connecting end 212. The first connecting end 211 is rotatably connected to the mounting base 1 via the rotating shaft 22, which extends radially along the first through hole 201. The peripheral wall of the connector 212 is provided with a limiting hole 202 communicating with the first through hole 201. The locking block 23 is movably disposed in the limiting hole 202. The limiting ring 24 is movably sleeved on the outside of the second connecting end 212. The inner sidewall of the limiting ring 24 slides against the locking block 23. When the rotating seat 21 is configured to rotate, it drives the limiting ring 24 to move relative to the rotating seat 21 along the axial direction of the first through hole 201 and has at least a locked position and a released position. When the limiting ring 24 moves from the released position to the locked position, it can drive the locking block 23 to move towards the central axis of the first through hole 201 to lock the air inlet end of the gas injection component.

[0042] This application provides a locking structure. When the user installs the air inlet end of the component to be injected with the first through hole 201 of the rotating seat 21 and operates the component to be injected to rotate the rotating seat 21 relative to the mounting seat 1, the limiting ring 24 sleeved on the outside of the second connecting end 212 of the rotating seat 21 can be driven to move axially along the first through hole 201. Since the inner sidewall of the limiting ring 24 slides against the locking block 23 in the limiting hole 202 of the second connecting end 212, the movement of the limiting ring 24 can be used to adjust the relative distance between the locking block 23 and the central axis of the first through hole 201, so that the locking block 23 can lock or release the air inlet end of the component to be injected. Specifically, the limiting ring 24 has at least a locked position and a released position relative to the rotating seat 21. When the limiting ring 24 moves from the released position to the locked position, it presses the locking block 23 so that the locking block 23 approaches the central axis of the first through hole 201, which can restrict and interfere with the air inlet end of the component to be injected, forming a locking relationship. When the limiting ring 24 moves from the locked position to the released position, the maximum movement distance between the locking block 23 and the central axis of the first through hole 201 increases under the movement relationship of the limiting ring 24. Thus, when the user pulls out the component to be injected, the locking block 23 can be easily pushed open and automatically release the restriction on the component to be injected, realizing easy removal of the component to be injected. By adopting the locking structure of this application, and utilizing the cooperation of the mounting seat 1 and the locking component 2, the user can easily complete the installation and removal of the component to be injected with a simple swinging motion, which is convenient and quick, thereby greatly improving the user experience.

[0043] like Figure 5 and Figure 9 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner sidewall of the limiting ring 24 has an abutment portion 241, which is used to slide against the locking block 23. The distance between the abutment portion 241 and the central axis of the first through hole 201 increases or decreases along the extending direction of the abutment portion 241. By adopting the above structure, when the limiting ring 24 moves radially along the first through hole 201, the relative position between the locking block 23 and the abutment portion 241 will change. Since the distance between the abutment portion 241 and the central axis of the first through hole 201 is different at different positions, the maximum movement distance between the locking block 23 and the central axis of the first through hole 201 will also change when the limiting ring 24 moves. Specifically, when the limiting ring 24 is in the locked position, the maximum movement distance between the locking block 23 and the central axis of the first through hole 201 is the smallest. The locking block 23 cannot be pushed away under the abutment restriction of the limiting ring 24, thus maintaining interference restriction on the air inlet end of the air-injecting component. When the limiting ring 24 is in the released position, since the distance between the abutment part 241 and the locking block 23 relative to the central axis of the first through hole 201 increases, the maximum movement distance between the locking block 23 and the central axis of the first through hole 201 increases. When the air-injecting component is pulled out, the locking block 23 can be easily pushed to move away from the central axis of the first through hole 201 to release the restriction on the air-injecting component.

[0044] like Figures 2 to 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the outer peripheral wall of the rotating seat 21 forms a limiting shaft 213, and the mounting seat 1 is provided with a first slot 102 and a second slot 103. When the limiting ring 24 is in the released position, the limiting shaft 213 engages with the first slot 102; when the limiting ring 24 is in the locked position, the limiting shaft 213 engages with the second slot 103. By adopting the above structure, when the rotating seat 21 rotates, it will drive the limiting shaft 213 to slide relative to the mounting seat 1. By using the limiting shaft 213 to engage with the first slot 102 or the second slot 103 on the mounting seat 1 respectively, the rotation of the rotating seat 21 can be limited. This helps the user to ensure that the operation is in place and maintained in the current rotation position when rotating the rotating seat 21, and also provides support so that the mounting seat 1 can better support the movement of the locking component 2 and the component to be injected.

[0045] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first slot 102 and the second slot 103 are spaced apart along the circumferential axis 22.

[0046] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of locking blocks 23 is at least two, and the at least two locking blocks 23 are distributed circumferentially along the first through hole 201.

[0047] like Figure 1 , Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting base 1 is provided with an arc-shaped slide groove 104, the arc-shaped slide groove 104 extends along the height direction of the mounting base 1, the distance between the arc-shaped slide groove 104 and the rotating shaft 22 increases or decreases along the extension direction of the arc-shaped slide groove 104, a connecting shaft 242 is formed on the outer peripheral wall of the limiting ring 24, the connecting shaft 242 is slidably inserted in the arc-shaped slide groove 104, and the connecting shaft 242 is configured to drive the limiting ring 24 to switch between the release position and the locking position when it moves along the arc-shaped slide groove 104. By adopting the above structure, since the distance between the arc-shaped slide 104 and the rotating shaft 22 increases or decreases along the extension direction of the arc-shaped slide 104, when the rotating seat 21 rotates, it will drive the connecting shaft 242 of the limiting ring 24 to slide along the arc-shaped slide 104. Thus, under the limiting action of the arc-shaped slide 104, the limiting seat 25 will move along the axial direction of the first through hole 201 to match the change in the distance between the connecting shaft 242 and the rotating shaft 22.

[0048] like Figure 6 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the arc-shaped slide 104 has a first end 1041 and a second end 1042, the horizontal height of the first end 1041 is greater than the horizontal height of the second end 1042, when the connecting shaft 242 is located at the first end 1041, the limiting ring 24 is in the release position, and when the connecting shaft 242 is located at the second end 1042, the limiting ring 24 is in the locked position. By adopting the above structure, when the user installs the gas-to-injection component, the gas-to-injection component and the rotating seat 21 can be rotated downwards to move the limiting ring 24 from the release position to the locked position to lock the gas-to-injection component. By adopting the above operation, the center of gravity of the gas-to-injection component is lower, which is more conducive to the safe operation of gas injection.

[0049] like Figure 3 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a mounting step 214 is formed on the outer peripheral side of the rotating seat 21 away from the second connecting end 212; the locking assembly 2 also includes a limiting seat 25, which is disposed on the mounting step 214 and located on the side of the limiting ring 24 away from the second connecting end 212; the limiting seat 25 is provided with a limiting groove 203 along the axial direction of the first through hole 201; and the connecting shaft 242 extends into the arc-shaped groove 104 through the limiting groove 203. By adopting the above structure, the limiting seat 25 is used to limit the limiting ring 24, ensuring that the limiting ring 24 can be stably installed and maintain abutment with the locking block 23. Furthermore, the limiting seat 25 is provided with a limiting groove 203 axially arranged in the first through hole 201. By utilizing the cooperation between the connecting shaft 242 and the limiting groove 203, the movement direction of the limiting ring 24 can be limited, preventing the limiting ring 24 from deflecting.

[0050] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the end of the limiting seat 25 away from the mounting step 214 is provided with a locking part 26, which is used to lock with the gas-to-be-injected component. The locking part 26 provides a certain limiting effect for the installation of the gas-to-be-injected component, making it easier for the user to confirm that the component is installed correctly, and preventing the component from immediately loosening after the locking block 23 releases its restriction.

[0051] like Figure 3 and Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second through hole 204 is formed at the end of the limiting seat 25 away from the mounting step 214. The second through hole 204 is coaxially arranged with the first through hole 201. The second through hole 204 is used to be fitted and installed with the air inlet end of the component to be injected. A snap-fit ​​portion 26 is provided on the inner sidewall of the second through hole 204. By adopting the above structure, the air inlet end of the component to be injected will extend into the first through hole 201 through the second through hole 204. The second through hole 204 will cooperate with the first through hole 201 to strengthen the connection with the component to be injected, ensuring that the gas injection operation can be carried out safely, and the component to be injected will not be loosened due to gas pressure impact, causing an accident.

[0052] like Figure 3 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the locking component 2 also includes a spring component 27, and the limiting ring 24 is connected to the mounting step 214 and / or the limiting seat 25 through the spring component 27. When the limiting ring 24 moves from the release position to the locking position, the spring component 27 deforms and accumulates elastic restoring force. With the spring component 27, when the limiting ring 24 moves from the release position to the locking position, the spring component 27 deforms and has elastic potential energy. Therefore, when the user needs to rotate the rotating seat 21 to the starting position to remove the gas-filled part, the spring component 27 makes the reset rotation of the rotating seat 21 easier and less strenuous. Furthermore, the spring component 27 provides a certain resistance to the limiting ring 24 from the release position to the locking position, thereby reducing the occurrence of accidental rotation of the rotating seat 21 under non-human operation.

[0053] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting base 1 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are detachably connected, and the first housing 11 and the second housing 12 enclose a mounting space 101. A first connecting end 211 extends into the mounting space 101 and is rotatably connected to the first housing 11 and / or the second housing 12 via a rotating shaft 22. By adopting the above structure, and by setting the detachably connected first housing 11 and the second housing 12 to enclose the mounting space 101 for mounting the locking component 2, the installation of the locking component 2 can be facilitated, and a certain degree of protection can be provided.

[0054] The second aspect of this application discloses a gas injection device.

[0055] like Figures 1 to 9As shown, this embodiment discloses a gas injection device, including: a main unit 200; the aforementioned locking structure 100, which is disposed on the main unit 200; a gas-to-injection component 300, which is detachably connected to the locking structure 100; and a gas supply device 400, which is disposed on the main unit 200 and connected to the locking structure 100. The gas supply device 400 communicates with the gas-to-injection component 300 through a first through hole 201 to introduce gas into the gas-to-injection component 300. The gas injection device disclosed in the second aspect of this application, by employing the locking structure 100 of any of the aforementioned claims, allows the user to install the air inlet end 310 of the component to be injected 300 into the first through hole 201 of the rotating seat 21, and operate the component to be injected 300 to rotate the rotating seat 21 relative to the mounting seat 1. The limiting ring 24, sleeved on the outer side of the second connecting end 212 of the rotating seat 21, can be driven to move axially along the first through hole 201. Since the inner wall of the limiting ring 24 slides against the locking block 23 in the limiting hole 202 of the second connecting end 212, the movement of the limiting ring 24 can be used to adjust the relative distance between the locking block 23 and the central axis of the first through hole 201, allowing the locking block 23 to lock or release the air inlet end 310 of the component to be injected 300. By employing the locking structure 100 of this application, and utilizing the cooperation of the mounting seat 1 and the locking component 2, the user can easily install and remove the component to be injected 300 with a simple swinging motion, making the operation convenient and quick, thereby greatly improving the user experience.

[0056] Furthermore, the aeration device can be a cream machine or a sparkling water machine, and the aeration component 300 can be a cream bottle or a water bottle.

[0057] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes: a valve assembly 500, which is disposed on the locking structure 100 and is used to control the opening and closing of the first through hole 201.

[0058] 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.

[0059] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A locking structure, characterized in that, include: Mounting base (1), the mounting base (1) is used to connect to the host; The locking assembly (2) includes a rotating seat (21), a rotating shaft (22), a locking block (23), and a limiting ring (24). The rotating seat (21) has a first through hole (201) along its length. The first through hole (201) is used to be fitted and installed with the air inlet end of the component to be injected to connect the component to the air supply device. The rotating seat (21) includes a first connecting end (211) and a second connecting end (212) opposite to each other. The first connecting end (211) is rotatably connected to the mounting base (1) through the rotating shaft (22). The rotating shaft (22) extends radially along the first through hole (201). The peripheral wall of the second connecting end (212) is provided with a connection to the first through hole (201). The locking block (23) is movably disposed in the limiting hole (202) of the connected limiting hole (202), and the limiting ring (24) is movably disposed on the outside of the second connecting end (212). The inner sidewall of the limiting ring (24) slides against the locking block (23). When the rotating seat (21) is configured to rotate, it drives the limiting ring (24) to move relative to the rotating seat (21) along the axial direction of the first through hole (201) and has at least a locked position and a released position. When the limiting ring (24) moves from the released position to the locked position, it can drive the locking block (23) to move towards the central axis of the first through hole (201) to lock the air inlet end of the gas injection component.

2. The locking structure according to claim 1, characterized in that, The inner wall of the limiting ring (24) has an abutment portion (241) for sliding contact with the locking block (23). The distance between the abutment portion (241) and the central axis of the first through hole (201) increases or decreases along the extending direction of the abutment portion (241); and / or The outer peripheral wall of the rotating seat (21) forms a limiting shaft (213). The mounting seat (1) is provided with a first slot (102) and a second slot (103). When the limiting ring (24) is in the released position, the limiting shaft (213) engages with the first slot (102). When the limiting ring (24) is in the locked position, the limiting shaft (213) engages with the second slot (103); and / or The number of the locking blocks (23) is at least two, and the at least two locking blocks (23) are distributed circumferentially along the first through hole (201).

3. The locking structure according to claim 1, characterized in that, The mounting base (1) is provided with an arc-shaped slide groove (104), which extends along the height direction of the mounting base (1). The distance between the arc-shaped slide groove (104) and the rotating shaft (22) increases or decreases along the extension direction of the arc-shaped slide groove (104). A connecting shaft (242) is formed on the outer peripheral wall of the limiting ring (24). The connecting shaft (242) is slidably inserted in the arc-shaped slide groove (104). The connecting shaft (242) is configured to drive the limiting ring (24) to switch between the release position and the locking position when it moves along the arc-shaped slide groove (104).

4. The locking structure according to claim 3, characterized in that, The arc-shaped slide (104) has a first end (1041) and a second end (1042). The horizontal height of the first end (1041) is greater than the horizontal height of the second end (1042). When the connecting shaft (242) is located at the first end (1041), the limiting ring (24) is located at the release position. When the connecting shaft (242) is located at the second end (1042), the limiting ring (24) is located at the locking position.

5. The locking structure according to claim 3, characterized in that, The rotating seat (21) has a mounting step (214) protruding on the outer periphery of the side away from the second connecting end (212). The locking assembly (2) also includes a limiting seat (25). The limiting seat (25) is disposed on the mounting step (214). The limiting seat (25) is located on the side of the limiting ring (24) away from the second connecting end (212). The limiting seat (25) is provided with a limiting groove (203) along the axial direction of the first through hole (201). The connecting shaft (242) extends into the arc-shaped groove (104) through the limiting groove (203).

6. The locking structure according to claim 5, characterized in that, The limiting seat (25) has a snap-fit ​​part (26) at one end away from the mounting step (214), which is used to snap-fit ​​with the gas-to-injection component.

7. The locking structure according to claim 6, characterized in that, The limiting seat (25) has a second through hole (204) at one end away from the mounting step (214). The second through hole (204) is coaxially arranged with the first through hole (201). The second through hole (204) is used to be adapted to the air inlet end of the gas injection component. The inner sidewall of the second through hole (204) is provided with the snap-fit ​​part (26).

8. The locking structure according to claim 5, characterized in that, The locking assembly (2) further includes a spring assembly (27), and the limiting ring (24) is connected to the mounting step (214) and / or the limiting seat (25) through the spring assembly (27). When the limiting ring (24) moves from the release position to the locking position, the spring assembly (27) deforms and accumulates elastic restoring force.

9. The locking structure according to any one of claims 1 to 8, characterized in that, The mounting base (1) includes a first housing (11) and a second housing (12). The first housing (11) and the second housing (12) are detachably connected. The first housing (11) and the second housing (12) enclose an installation space (101). The first connecting end (211) extends into the installation space (101) and is rotatably connected to the first housing (11) and / or the second housing (12) through the rotating shaft (22).

10. A gas injection device, characterized in that, include: Host (200); The locking structure (100) as described in any one of claims 1 to 9, wherein the locking structure (100) is disposed on the host (200); The gas-to-be-injected component (300) is detachably connected to the locking structure (100); A gas supply device (400) is provided on the host (200). The gas supply device (400) is connected to the locking structure (100). The gas supply device (400) communicates with the gas-to-injection component (300) through the first through hole (201) to introduce gas into the gas-to-injection component (300).

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