Negative pressure magnetic locking device and mobile phone support

Abstract

The utility model relates to the technical field of mobile phone supports, in particular to a negative pressure magnetic locking device and a mobile phone support, the negative pressure magnetic locking device comprises a suction cup assembly and a magnetic assembly, the suction cup assembly comprises a base and an annular side baffle fixedly arranged on the base, and the inner diameter of the annular side baffle is gradually increased from the base to the direction away from the base; the annular side baffle and the base jointly form an air cavity; a pressure relief structure is further arranged on the annular side baffle and used for relieving negative pressure adsorption of the suction cup assembly to the to-be-locked piece. The magnetic attraction assembly comprises a first magnetic piece fixedly arranged on the base, and the first magnetic piece is used for enabling the side, forming the air cavity, of the base to be connected with a to-be-locked piece. According to the utility model, a negative pressure adsorption structure and a magnetic adsorption structure are simultaneously adopted, so that the locking force of the locking device is enhanced; meanwhile, a pressure relief structure is further arranged, when the to-be-locked piece needs to be taken down, the suction cup assembly is released from the adsorption state in advance through the pressure relief structure, only magnetic attraction connection is needed at the moment, and therefore the to-be-locked piece can be taken down easily, and use is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone holders, in particular to a negative pressure magnetic locking device and a mobile phone holder. Background Art

[0002] As electronic devices such as smartphones and tablets are used more and more in people's lives, the application of mobile phone holders is becoming more and more extensive.

[0003] In existing mobile phone holders, some manufacturers usually use mobile phone clips or buckle locking structures at the bottom of the mobile phone case to lock and fix the mobile phone. Their appearance is generally large, not beautiful, and inconvenient to use. Therefore, some manufacturers, in response to user needs, have adopted magnetic or suction cup structures to lock the mobile phone. The above structures can not only effectively reduce the size of the product, but also make the appearance design more beautiful and diversified to meet user needs. However, in actual applications, the locking force of the mobile phone by the existing magnetic or suction cup structure is slightly insufficient. The mobile phone is prone to rotation, affecting the user experience. In serious cases, it may even fall off during use, causing the phone to fall and be damaged. In addition, when using a suction cup structure to adsorb and lock the mobile phone, if the mobile phone needs to be removed, the user usually separates the mobile phone from the suction cup by strong pulling, which has a significant impact on the service life of the mobile phone holder and is prone to damage to the device. Utility Model Content

[0004] In order to solve at least one of the above-mentioned technical problems, the present invention proposes a negative pressure magnetic locking device, which adopts both a negative pressure adsorption structure and a magnetic attraction structure to enhance the locking force of the locking device; in addition, a pressure relief structure is also provided. When it is necessary to remove the part to be locked, the suction cup assembly is first released from the adsorption state through the pressure relief structure. At this time, only the magnetic attraction connection remains, so that the part to be locked can be easily removed, which is simple and convenient to use.

[0005] One purpose of the utility model is to provide a negative pressure magnetic locking device, comprising:

[0006] The suction cup assembly includes a base and an annular side guard fixedly mounted on the base. The inner diameter of the annular side guard gradually increases from the base toward the direction away from the base, and the annular side guard and the base together form an air cavity. The annular side guard is also provided with a pressure relief structure for relieving the negative pressure adsorption of the suction cup assembly on the external component.

[0007] The magnetic attraction assembly includes a first magnetic component fixedly arranged on the base, and the first magnetic component is used to connect one side of the base forming the air cavity with the to-be-locked component.

[0008] Furthermore, the pressure relief structure is a protrusion formed on the outer wall of the annular side baffle, and the protrusion extends from the outer wall of the annular side baffle toward the base.

[0009] Furthermore, the protrusion is an annular protrusion extending along the circumference of the annular side baffle.

[0010] Furthermore, a surface on one side of the base forming the air cavity is provided with a plurality of anti-skid protrusions or a plurality of anti-skid grooves, and the plurality of anti-skid protrusions or a plurality of anti-skid grooves are used to limit the relative movement of the base and the part to be locked within their mating surfaces.

[0011] Furthermore, the negative pressure magnetic locking device also includes an annular locking piece, the annular side has a mounting end, the mounting end is sleeved on the outer circumference of the base, and the annular locking piece is sleeved on the outer circumference of the mounting end to lock and fix the mounting end and the base.

[0012] Furthermore, a first card slot is provided on the outer circumferential surface of the base, and a first card platform that cooperates with the first card slot is provided on the inner side wall of the mounting end; a second card slot is provided on the outer circumferential surface of the mounting end, and a second card platform that cooperates with the second card slot is provided on the inner side wall of the annular locking piece.

[0013] Furthermore, a mounting groove is provided on a side of the base facing away from the air cavity, and the first magnetic member is fixedly disposed in the mounting groove.

[0014] Furthermore, the magnetic attraction component also includes a second magnetic part, which is used to be set on the part to be locked, one of the first magnetic part and the second magnetic part is a magnet, and the other is an iron sheet; or the first magnetic part and the second magnetic part are both set as magnets.

[0015] Furthermore, the number of the first magnetic members is set to one or more, and the number and positions of the second magnetic members are set corresponding to the first magnetic members.

[0016] Another object of the present invention is to provide a mobile phone holder, which includes any one of the negative pressure magnetic locking devices described above.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The magnetic component and the suction cup component work together to lock and fix the part to be locked, effectively enhancing the locking force of the device and preventing the mobile phone from falling and being damaged due to insufficient locking force. In addition, a pressure relief structure is also provided on the suction cup component. When it is necessary to remove the part to be locked, the suction cup component is first released from the adsorption state through the pressure relief structure. At this time, only the magnetic connection remains, so that the part to be locked can be easily removed. It is simple and convenient to use. In addition, the combined design of the suction cup component and the magnetic component also allows the suction cup to benefit from the effect of magnetic force when working under negative pressure, which can avoid the phenomenon of the negative air pressure inside the suction cup component continuously weakening as the adsorption time increases, thereby ensuring the stability of the adsorption of the suction cup component.

[0019] 2. The utility model itself is also provided with an anti-slip structure on the base, which can effectively prevent electronic devices such as mobile phones or tablets from rotating or sliding during use, affecting the use effect and increasing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a negative pressure magnetic locking device proposed in one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of a negative pressure magnetic locking device proposed in one embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional view of a negative pressure magnetic locking device proposed in one embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of a base in a negative pressure magnetic locking device proposed in one embodiment of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of a member to be locked in a negative pressure magnetic locking device according to one embodiment of the present invention;

[0026] Figure 6 This is a schematic structural diagram from another perspective of a member to be locked in a negative pressure magnetic locking device proposed in one embodiment of the present invention.

[0027] In the figure: 100 - base, 110 - first magnetic member, 120 - mounting base, 130 - anti-slip bump, 140 - first slot;

[0028] 200-annular side stop, 210-annular protrusion, 220-second card slot, 230-first card platform;

[0029] 300-annular locking member, 310-second clamping platform;

[0030] 400 - piece to be locked, 410 - anti-slip groove, 420 - second magnetic piece. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 6 As shown, the utility model provides a negative pressure magnetic locking device, including a suction cup assembly and a magnetic suction assembly; wherein, the suction cup assembly is used to lock the locking member 400 by means of negative pressure adsorption, and comprises a base 100 and an annular side block 200 fixedly arranged on the base 100. The annular side block 200 is at least partially bendable or compressible, and can be stretched again to restore its original shape after bending or compression. In addition, its inner diameter gradually increases from the base 100 to the direction away from the base 100, and the overall appearance is trumpet-shaped. The annular side block 200 and the base 100 together form an air cavity, and the air cavity has an open end. In the locked state, the open end contacts the locking member 400, and the air cavity forms a closed state. In this embodiment, the preferred open end is made of a soft elastic material, which can improve the sealing effect of the open end of the air cavity in the locked state and enhance the negative pressure adsorption force.

[0033] In this embodiment, the annular side dam 200 is also provided with a pressure relief structure for relieving the negative pressure adsorption of the suction cup assembly on the external component. The pressure relief structure can be a pressure relief opening provided on the annular side dam 200 or a structure that can easily deform the annular side dam 200 to relieve the negative pressure adsorption of the suction cup assembly. For example, the pressure relief opening can be an air passage that runs through the annular side dam 200, connecting the interior space of the air cavity with the exterior space. In this case, a seal is required on the air passage to close or open the air passage. The specific seal can be a sealing cover or air valve.

[0034] like Figures 1 to 3 As shown, in some embodiments, the annular side dam 200 is made of a soft elastic material. The pressure relief structure can also be a structure provided on the annular side dam 200 to facilitate deformation of the annular side dam 200. Specifically, it is a protrusion formed on the outer wall of the annular side dam 200. The protrusion is preferably located near the open end and extends from the outer wall of the annular side dam 200 toward the base 100, making it easy to manually pry or lift it. When it is necessary to release pressure on the suction cup assembly, the user manually pry or lifts the protrusion, causing the annular side dam 200 to deform, allowing the suction cup assembly to release air, thereby achieving pressure relief and unlocking.

[0035] like Figures 1 to 3As shown, in this embodiment, the protrusion is preferably configured as an annular protrusion 210 extending along the circumference of the annular side guard 200. The user can move or lift any position of the annular protrusion 210, or simultaneously move multiple positions on the annular side guard 200, to release the pressure, thereby improving user convenience. This avoids the inconvenience caused by the locking member blocking the pressure relief structure. In addition, the annular protrusion 210 also acts as a reinforcement rib, effectively extending the service life of the suction cup assembly.

[0036] like Figures 1 to 6 As shown, in the present invention, the magnetic attraction assembly includes a first magnetic member 110 fixedly mounted on the base 100. The first magnetic member 110 is used to connect the side of the base 100 that forms the air cavity to the member to be locked 400. The combined design of the magnetic attraction assembly and the suction cup assembly can effectively enhance the locking force of the device. In addition, under the magnetic attraction of the first magnetic member 110, the rate at which the negative pressure of the air inside the suction cup assembly decreases with the increase of the adsorption time can be effectively reduced, allowing the suction cup assembly to maintain sufficient negative pressure adsorption force for a longer period of time.

[0037] The locking member 400 can be an external component such as a phone case or adhesive sheet with a magnetic component, or a magnetic component that can be placed between the phone case and the phone. Under the magnetic attraction of the first magnetic component 110, the side of the base 100 that forms the air cavity is connected to the locking member 400. However, it should be noted that if the locking member 400 does not have a magnetic component that can magnetically connect with the first magnetic component 110, the suction cup assembly alone can also achieve the locking purpose. In this case, the locking member 400 is locked only by the negative pressure adsorption of the suction cup assembly.

[0038] like Figures 1 to 3 As shown, in some embodiments, a mounting groove is provided on the side of the base 100 facing away from the air cavity, a mounting seat 120 is fixedly provided in the mounting groove, and the first magnetic member 110 is fixedly provided at the bottom of the mounting groove through the mounting seat 120. In this embodiment, the first magnetic member 110 can also be fixed by other methods that can achieve a fixing effect, such as adhesive fixation, bolt fixation, or tight fit. For example, the first magnetic member 110 is fixedly bonded to the base 100 by glue; or a through hole is provided on the first magnetic member 110, and a threaded hole is provided on the base 100, and the first magnetic member 110 is locked to the base 100 by bolts; or the first magnetic member 110 is directly tightly fitted with the mounting groove so that the first magnetic member 110 is fixed in the mounting groove.

[0039] like Figures 1 to 3 、 Figure 6As shown, in some embodiments, the magnetic attraction assembly further includes a second magnetic member 420, which is disposed on the member to be locked 400 and is used for magnetic connection with the first magnetic member 110. One of the first magnetic member 110 and the second magnetic member 420 is a magnet, and the other is an iron sheet; or both the first magnetic member 110 and the second magnetic member 420 are configured as magnets, so as to achieve a magnetic connection between the two. It should be noted that when both the first magnetic member 110 and the second magnetic member 420 are configured as magnets, the magnetic poles of the two need to be set in opposite directions.

[0040] like Figures 1 to 3 、 Figure 6 As shown, in some embodiments, the member to be locked 400 is set as a mobile phone case, and the second magnetic member 420 is fixedly set on the mobile phone case, and its position is set corresponding to the first magnetic member 110. It is understandable that the fixing method of the second magnetic member 420 can be the same as the fixing method of the first magnetic member 110, or it can be different.

[0041] like Figures 1 to 3 、 Figure 6 As shown, in some embodiments, the number of the first magnetic member 110 can be set to one or more. When the number of the first magnetic member 110 is set to one, the first magnetic member 110 is preferably set to be an annular magnet, and the axis of the annular magnet coincides with the axis of the base 100, so that the magnetic attraction force of the magnetic attraction component is more evenly distributed and the locking effect of the device is enhanced. When the number of the first magnetic member 110 is set to multiple, it is preferably arranged at intervals along the circumference of the base 100. In addition, the present invention can also be implemented by arranging the first magnetic member 110 on the side of the base 100 where the air cavity is formed.

[0042] Preferably, the number and position of the second magnetic parts 420 are set corresponding to the number and position 110 of the first magnetic parts. However, it should be noted that when the number of the first magnetic parts 110 is multiple, the number of the second magnetic parts 420 is set to one, which can also implement the present invention. For example, the first magnetic part 110 is set to 2, 3 or more magnets spaced circumferentially along the base 100, and the second magnetic part 420 is a ring magnet or an iron sheet fixedly set on the part to be locked 400. It is understandable that the number of the first magnetic parts 110 can also be set to one, and the number of the second magnetic parts 420 can also be set to multiple.

[0043] like Figures 1 to 5As shown, in some embodiments, a side surface of the base 100 forming the air cavity is provided with a plurality of anti-slip bumps 130 or a plurality of anti-slip grooves 410. The plurality of anti-slip bumps 130 or the plurality of anti-slip grooves 410 are used to limit the relative movement of the base 100 and the part to be locked 400 within their mating surfaces, thereby preventing the mobile phone from rotating or displacing relative to the device during use. Preferably, the base 100 is provided with a plurality of anti-slip bumps 130, and the part to be locked 400 is provided with a plurality of anti-slip grooves 410 that match the plurality of anti-slip bumps 130. In the locked state, the anti-slip bumps 130 and the anti-slip grooves 410 fit together. Such a setting can effectively increase the friction between the base 100 and the part to be locked 400, prevent the mobile phone from rotating or sliding, and enhance the user experience.

[0044] In some embodiments, other anti-slip structures may be used, such as providing anti-slip grooves on the base 100 and providing an elastic soft layer at a corresponding position on the locking member 400; or providing rough surfaces on the contact surfaces of the base 100 and the locking member 400 in the locked state to increase the friction between the base 100 and the locking member 400. The elastic soft layer may be made of silicone material.

[0045] like Figures 1 to 4 As shown, in some embodiments, the negative pressure magnetic locking device further includes an annular locking member 300. The end of the annular side guard 200 with the smaller inner diameter serves as the mounting end, which is sleeved onto the outer circumference of the base 100. The annular locking member 300 sleeves around the outer circumference of the mounting end, locking the mounting end and the base 100. The annular locking member 300 can be a locking structure such as a locking band or a clamp, and any structure capable of locking the annular side guard 200 to the base 100 is acceptable. It should be noted that the annular side guard 200 can also be integrally formed with the base 100 to achieve the present invention.

[0046] like Figures 1 to 4As shown, in some embodiments, a first latching groove 140 is provided on the outer circumference of the base 100, and a first latching platform 230 is provided on the inner sidewall of the mounting end to cooperate with the first latching groove 140, thereby preventing displacement between the base 100 and the annular side stop 200 in the locked state. A second latching groove 220 is provided on the outer circumference of the mounting end, and a second latching platform 310 is provided on the inner sidewall of the annular locking member 300 to cooperate with the second latching groove 220, thereby preventing the annular locking member 300 from disengaging from the annular side stop 200 and thereby releasing the locked state of the annular side stop 200. The number of the first latching groove 140, the first latching platform 230, the second latching groove 220, and the second latching platform 310 can be one or more. When the number of the first slot 140, the first platform 230, the second slot 220, and the second platform 310 is set to one, the first slot 140, the first platform 230, the second slot 220, and the second platform 310 are all configured as an annular structure. This configuration can not only enhance the tightening effect, but also increase the airtightness of the air cavity in the locked state. When the number of the first slot 140, the first platform 230, the second slot 220, and the second platform 310 is set to multiple, the multiple first slots 140 are all arranged on the outer circumferential surface of the base 100 and are spaced apart along the circumference of the base 100. The multiple first platforms 230 are cooperatingly arranged on the inner circumferential surface of the mounting end. The multiple second slots 220 are all arranged on the outer circumferential surface of the mounting end and are spaced apart along the circumference of the mounting end. The multiple second platforms 310 are cooperatingly arranged on the inner circumferential surface of the annular locking member 300.

[0047] In this embodiment, the first clamping platform 230 is disposed on the outer circumference of the base 100, and the first clamping slot 140 is disposed on the inner circumference of the mounting end, which can also implement the present invention. It is understood that the positions of the second clamping platform 310 and the second clamping slot 220 can also be interchanged, and the specific arrangement can be selected according to actual needs.

[0048] Another object of the present invention is to provide a mobile phone holder including any of the above-mentioned negative pressure magnetic locking devices. The specific structure of the mobile phone holder is not shown in the figure. The mobile phone holder can be a vehicle-mounted mobile phone holder, a home mobile phone holder, etc., and the mobile phone holder can also be provided with other directional adjustment structures such as a universal ball, a folding and telescopic structure, etc.

[0049] like Figures 1 to 3 As shown, in this embodiment, the mounting base 120 is provided with threaded holes for connecting the locking device of the present invention to the load structure of the mobile phone holder via bolts. It is understood that the locking device of the present invention and the load structure of the mobile phone holder can also be connected using other connection structures. For example, a magnetic connection or other quick-release structure that facilitates assembly and disassembly can be used.

[0050] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A negative pressure magnetic locking device, characterized in that: include: The suction cup assembly includes a base and an annular side stop fixedly mounted on the base, wherein the inner diameter of the annular side stop gradually increases from the base toward the direction away from the base, and the annular side stop and the base together form an air cavity; wherein the annular side stop is further provided with a pressure relief structure for relieving the negative pressure adsorption of the suction cup assembly on the external component; The magnetic attraction assembly includes a first magnetic component fixedly arranged on the base, and the first magnetic component is used to connect the side of the base forming the air cavity with the to-be-locked component.

2. The negative pressure magnetic locking device according to claim 1, characterized in that: The pressure relief structure is a protrusion formed on the outer side wall of the annular side dam, and the protrusion extends from the outer side wall of the annular side dam toward the base.

3. The negative pressure magnetic locking device according to claim 2, characterized in that: The protrusion is an annular protrusion extending along the circumference of the annular side baffle.

4. The negative pressure magnetic locking device according to claim 1, characterized in that: A surface of one side of the base forming the air cavity is provided with a plurality of anti-slip protrusions or a plurality of anti-slip grooves, and the plurality of anti-slip protrusions or the plurality of anti-slip grooves are used to limit the relative movement of the base and the part to be locked within their mating surfaces.

5. The negative pressure magnetic locking device according to claim 1, characterized in that: The negative pressure magnetic locking device also includes an annular locking piece, the annular side has a mounting end, the mounting end is sleeved on the outer circumference of the base, and the annular locking piece is sleeved on the outer circumference of the mounting end to lock and fix the mounting end and the base.

6. The negative pressure magnetic locking device according to claim 5, characterized in that: A first card slot is provided on the outer circumferential surface of the base, and a first card platform that cooperates with the first card slot is provided on the inner side wall of the mounting end; a second card slot is provided on the outer circumferential surface of the mounting end, and a second card platform that cooperates with the second card slot is provided on the inner side wall of the annular locking member.

7. The negative pressure magnetic locking device according to claim 1, characterized in that: A mounting groove is provided on a side of the base facing away from the air cavity, and the first magnetic member is fixedly disposed in the mounting groove.

8. The negative pressure magnetic locking device according to claim 1, characterized in that: The magnetic attraction assembly also includes a second magnetic part, which is used to be set on the part to be locked. One of the first magnetic part and the second magnetic part is a magnet, and the other is an iron sheet; or the first magnetic part and the second magnetic part are both set as magnets.

9. The negative pressure magnetic locking device according to claim 8, characterized in that: The number of the first magnetic members is set to one or more, and the number and positions of the second magnetic members are set corresponding to those of the first magnetic members.

10. A mobile phone holder, characterized in that: The mobile phone holder comprises the negative pressure magnetic locking device according to any one of claims 1 to 9.

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