Fixing device and player

Abstract

The invention belongs to the technical field of players, and discloses a fixing device and a player, and the fixing device comprises a fixing seat, an adsorption assembly, a pressure relief shovel and a linkage control assembly. The suction assembly comprises a suction cup and a pull rod, the suction cup is arranged on the fixing base and can be sucked to a target position, and the pull rod is arranged on the suction cup. The pressure relief shovel is rotationally connected to the fixed seat, and the tip can be inserted between the sucker and a target position; the linkage control assembly is connected between the pull rod and the pressure relief shovel and comprises a sliding push button, and when the sliding push button slides from the first position to the second position, the linkage control assembly can drive the pull rod to move in the direction away from the target position and pull the suction cup to generate negative pressure in the suction cup; on the contrary, the linkage control assembly can drive the pressure relief shovel to rotate and stretch into the suction cup to relieve pressure of the suction cup, and the pressure relief shovel can reset after pressure relief of the suction cup. The fixing device can adsorb and position to-be-fixed equipment to a target position, is not limited by materials and places of the target position, and is good in portability and wide in application range.

Description

Technical Field

[0001] The present invention relates to the technical field of players, and in particular to a fixing device and a player. Background Art

[0002] Railway transportation is a mode of transportation that uses railway trains to transport passengers and goods, and plays an important role in the social material production process. Due to its advantages such as large transportation volume, fast speed, low cost and low climate restrictions, railway transportation such as high-speed rail and EMU are becoming the preferred choice for passengers.

[0003] Train broadcasts are a type of voice announcement that can be heard in all carriages. They cannot be designated for specific carriages to provide reminders, which would mislead other passengers. At the same time, train broadcasts can only be made inside the train and cannot be transmitted to the outside of the train. Before passengers board the train, the crew guides the passengers on board and needs to place an additional player next to the door for voice reminders, such as broadcasts in multiple languages ​​at home and abroad. However, since the body of the high-speed train and EMU carriages is made of non-ferrous alloy material, and there are no handrails or hooks outside the carriages, the player can only be placed on the ground, which greatly affects the sound transmission effect and makes it impossible to transmit the voice announcement to every passenger.

[0004] Therefore, there is an urgent need for a fixing device and a player to solve the above problems. Summary of the invention

[0005] One object of the present invention is to provide a fixing device, which can adsorb and position a device to be fixed at a target position, is not limited by the material and location of the target position, has good portability and a wide range of applications.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A fixing device, used to position the device to be fixed at a target position, the fixing device comprising:

[0008] A fixing seat, fixedly connected to the device to be fixed;

[0009] The adsorption component comprises a suction cup and a pull rod, wherein the suction cup is arranged on the fixing seat and can be adsorbed on the target position, and the pull rod is arranged on the suction cup and can movably pass through the fixing seat;

[0010] A pressure relief shovel is rotatably connected to the fixing seat, and the tip of the pressure relief shovel can be inserted between the suction cup and the target position;

[0011] A linkage control assembly connected between the pull rod and the pressure relief shovel, the linkage control assembly comprising a sliding push button, the sliding push button being slidably connected to the fixing seat, and the sliding push button having a first position and a second position;

[0012] When the sliding push button slides from the first position to the second position, the linkage control component can drive the pull rod to move in a direction away from the target position and pull the suction cup, so that negative pressure is generated in the suction cup;

[0013] When the sliding push button slides from the second position to the first position, the linkage control component can drive the pressure relief shovel to rotate and extend into the suction cup to relieve pressure from the suction cup. The pressure relief shovel can also reset after the suction cup is relieved.

[0014] Optionally, the linkage control assembly also includes a connecting shaft, one end of the connecting shaft is rotatably connected to the sliding push button, and the other end of the connecting shaft is provided with an eccentric portion, and the eccentric portion is rotatably connected to the pull rod. When the sliding push button slides from the first position to the second position, it can drive the connecting shaft to rotate so that the eccentric portion abuts against the fixed seat.

[0015] Optionally, the linkage control component also includes a limit link and a limit wheel, a short shaft is protruding from the side of one end of the connecting shaft close to the sliding push button, a sliding groove is penetrated through the limit link, the short shaft passes through the sliding groove and can slide along the sliding groove, the limit wheel is rotatably connected to the end of the short shaft passing through the sliding groove, and the limit link is rotatably connected to the end of the pressure relief shovel away from the tip.

[0016] Optionally, a positioning portion is also protruded from the side of the connecting shaft, and the positioning portion is farther away from the sliding push button than the short shaft. The positioning portion can extend into the sliding groove and slide relative to the sliding groove. The radial protrusion of the limiting wheel forms a limiting block, and the limiting block abuts against the positioning portion.

[0017] Optionally, a limiting groove is further provided on a side of the limiting connecting rod away from the connecting shaft, the limiting groove is communicated with the sliding groove, the width of the limiting groove is greater than the width of the sliding groove, the limiting wheel can slidably abut against the step surface between the limiting groove and the sliding groove, a limiting portion is convexly provided on the inner wall of the limiting groove, the limiting portion is close to the length center of the limiting groove, and the radial protrusion of the limiting wheel forms a shifting block;

[0018] The sliding push button also has a third position, and the third position is located between the first position and the second position;

[0019] When the sliding push button slides from the second position to the third position, the shift block always contacts the limiting portion, and the connecting shaft rotates to drive the limiting connecting rod and the pressure relief shovel to rotate, so that the pressure relief shovel extends into the suction cup;

[0020] When the sliding push button slides from the third position to the first position, the shift block is disengaged from the limiting portion, and the pressure relief shovel can be rotated and reset.

[0021] Optionally, the linkage control assembly further comprises a first elastic member, one end of which is connected to the fixing seat, and the other end of which is connected to a side of the shift block facing a hinge point between the limiting link and the pressure relief shovel.

[0022] Optionally, the hinge point between the pressure relief shovel and the fixed seat is located between the hinge point between the pressure relief shovel and the limiting link and the tip of the pressure relief shovel, and a connecting portion is provided on the side of the pressure relief shovel facing away from the fixed seat, and the connecting portion is close to the hinge point between the pressure relief shovel and the fixed seat, and the linkage control assembly also includes a second elastic member, one end of the second elastic member is connected to the fixed seat, and the other end is connected to the connecting portion.

[0023] Optionally, the adsorption assembly further includes an elastic reset member, which is sleeved outside the pull rod and clamped between the suction cup and the fixing seat.

[0024] Another object of the present invention is to provide a player, including a player, a shell and the above-mentioned fixing device, wherein the player is installed in the shell, the shell has a plurality of speaker holes corresponding to the player, the fixing seat of the fixing device is integrated in the shell, and the adsorption component is used to position the shell at the target position.

[0025] Optionally, a handle is further included, and the handle is installed on the shell.

[0026] Beneficial effects of the present invention:

[0027] The fixing device provided by the present invention can position the device to be fixed at the target position. Specifically, the fixing seat is fixedly connected to the device to be fixed, and the suction cup is arranged on the fixing seat. The suction cup can be adsorbed at the target position. The fixing seat can be positioned at the target position by the suction cup, thereby realizing the positioning of the device to be fixed. At the same time, the pull rod is arranged on the suction cup, and the fixing seat can be movably penetrated, the pressure relief shovel is rotatably connected to the fixing seat, the tip of the pressure relief shovel can be inserted between the suction cup and the target position, and the linkage control component is connected between the pull rod and the pressure relief shovel. The linkage control of the pull rod and the pressure relief shovel is realized by the linkage control component. The linkage control component includes a sliding push button. When the sliding push button slides from the first position to the second position, the linkage control component can drive the pull rod to move in the direction away from the target position and pull the suction cup, so that negative pressure is generated in the suction cup, and vacuum suction is formed in the suction cup, thereby adsorbing and fixing the suction cup. The target position adsorbed by the suction cup can be a non-ferrous alloy body of a high-speed rail or a motor vehicle, or can be a position such as the inner wall of a carriage or a glass or a wall, which greatly improves the scope of application of the fixing device. When the sliding push button slides from the second position to the first position, the linkage control component can drive the pressure relief shovel to rotate and extend into the suction cup to relieve the pressure of the suction cup. After the suction cup is relieved, the fixing device and the equipment to be fixed can be moved, which effectively improves its portability and convenience of use. The pressure relief shovel can also reset after the suction cup is relieved to avoid interference with the pressure relief shovel when the suction cup is adsorbed on the next target position, affecting the positioning effect of the suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 is a structural exploded view of a player provided by an embodiment of the present invention from one perspective;

[0030] Figure 2 is a structural exploded view of a player provided by an embodiment of the present invention from another perspective;

[0031] Figure 3 is a schematic structural diagram of a fixing device provided in an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure after the connecting shaft and the limiting wheel are assembled according to an embodiment of the present invention;

[0033] Figure 5 is a schematic structural diagram of a limit connecting rod provided in an embodiment of the present invention;

[0034] Figure 6 is a schematic structural diagram of a pressure relief shovel provided in an embodiment of the present invention;

[0035] Figure 7 is a side view of the player provided by the embodiment of the present invention when the sliding button is in the second position;

[0036] Figure 8 yes Figure 7 The main view of the player (with the front cover hidden);

[0037] Fig. 9 yes Figure 8 Sectional view in the AA direction;

[0038] Fig.10 yes Figure 8 Cross-sectional view in the BB direction;

[0039] Fig.11 is a side view of the player provided by the embodiment of the present invention when the sliding push button moves from the second position to the first position and has not yet reached the third position;

[0040] Fig.12 yes Fig.11 Cross-sectional view in CC direction;

[0041] Fig.13 is a side view of the player provided by the embodiment of the present invention when the sliding button is in the third position;

[0042] Fig.14 yes Fig.13 Cross-sectional view in the middle DD direction;

[0043] Fig.15 is a side view of the player provided by the embodiment of the present invention when the sliding button is in the first position;

[0044] Fig.16 yes Fig.15 Cross-sectional view along the EE direction.

[0045] In the figure:

[0046] 10, housing; 101, front housing; 1011, speaker hole; 1012, guide groove; 102, rear housing; 1021, slot; 20, player; 30, power supply assembly; 40, controller; 50, handle;

[0047] 1. Fixed seat;

[0048] 2. Adsorption assembly; 21. Suction cup; 22. Pull rod; 23. Elastic reset member;

[0049] 3. pressure relief shovel; 31. tip; 32. connection part;

[0050] 4. linkage control assembly; 41. sliding push button; 411. sliding switch; 412. sliding connector; 42. connecting shaft; 421. eccentric portion; 422. short shaft; 423. positioning portion; 43. limiting connecting rod; 431. slide groove; 432. limiting groove; 433. limiting portion; 44. limiting wheel; 441. limiting block; 442. shifting block; 45. first elastic member; 46. second elastic member. DETAILED DESCRIPTION

[0051] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0055] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0059] This embodiment provides a fixing device and a player, and the player is positioned at a target position by the fixing device provided by this embodiment. Through the fixing device, the player can be fixed not only on the non-ferrous alloy body of high-speed rail and motor vehicle, but also on the body or glass in the carriage, reducing the limitation of placing the player on the ground due to the absorption of sound by the ground and affecting the propagation distance. It can also be installed on the wall of the station entrance, solving the problem of temporary diversion of passengers during the peak of railway travel and return during the Spring Festival or short holidays, and improving the railway industry's ability to provide better services to passengers.

[0060] Specifically, Figure 1 and Figure 2 As shown, the player includes a housing 10, a player 20 and a fixing device provided in this embodiment. The housing 10 specifically includes a front housing 101 and a rear housing 102, and the front housing 101 and the rear housing 102 are snap-fitted to form a housing space. The player 20 is installed in the housing space of the housing 10 and is close to the front housing 101. The front housing 101 is provided with a plurality of speaker holes 1011 corresponding to the player 20 to transmit the broadcast of the player 20. The fixing device is installed on the rear housing 102 to avoid interference with the installation of the player 20 and to achieve the positioning and fixing of the player.

[0061] More specifically, the player also includes a power supply component 30 and a controller 40. The power supply component 30 is installed in the accommodation space of the shell 10, and the controller 40 is integrated on the front shell 101 to ensure the compactness of the overall structure of the player. The power supply component 30 is electrically connected to the controller 40 and the player 20 to provide electrical energy. The power supply component 30 can be selected as a common battery or a secondary battery, which is not limited in this embodiment. The controller 40 is connected to the player 20 for communication, and the controller 40 can be selected as a PCBA board, and its structure and principle are all prior art, which will not be described here.

[0062] More specifically, the player further comprises a handle 50. The handle 50 is mounted on the top of the housing 10 so as to facilitate the staff to lift and transfer the player and improve portability.

[0063] Reference Figure 1-Figure 3 , Figure 7 , Fig.11 , Fig.13 and Fig.15 The fixing device provided in this embodiment includes a fixing seat 1, an adsorption component 2, a pressure relief shovel 3 and a linkage control component 4.

[0064] Among them, the fixing seat 1 is fixedly connected to the equipment to be fixed. The adsorption component 2 includes a suction cup 21 and a pull rod 22. The suction cup 21 is arranged on the fixing seat 1 and can be adsorbed on the target position. The pull rod 22 is arranged on the suction cup 21, and the pull rod 22 can be movably passed through the fixing seat 1. The pressure relief shovel 3 is rotatably connected to the fixing seat 1, and the tip 31 of the pressure relief shovel 3 can be inserted between the suction cup 21 and the target position. The linkage control component 4 is connected between the pull rod 22 and the pressure relief shovel 3, and the linkage control component 4 includes a sliding push button 41. The sliding push button 41 is slidably connected to the fixing seat 1, and the sliding push button 41 has a first position and a second position.

[0065] That is to say, in this embodiment, by controlling the movement of the pull rod 22, the suction cup 21 generates suction to position the fixing seat 1 at the target position, thereby realizing the positioning of the equipment to be fixed. The pressure relief shovel 3 is rotated so that its tip 31 extends between the suction cup 21 and the target position to relieve the pressure on the suction cup 21, thereby separating the suction cup 21 from the target position. The linkage control of the pull rod 22 and the pressure relief shovel 3 is realized by the linkage control component 4. When the sliding push button 41 slides from the first position to the second position, the linkage control component 4 can drive the pull rod 22 to move away from the target position and pull the suction cup 21, so that negative pressure is generated in the suction cup 21, and vacuum suction is formed in the suction cup 21, thereby adsorbing and fixing the suction cup 21. The target position for the suction cup 21 to be adsorbed can be a non-ferrous alloy body of a high-speed train or a motor vehicle, or it can be a position such as the inner wall of a carriage, glass or wall, which greatly improves the scope of application of the fixing device. When the sliding push button 41 slides from the second position to the first position, the linkage control component 4 can drive the pressure relief shovel 3 to rotate and extend into the suction cup 21, so that the suction cup 21 releases pressure. After the suction cup 21 releases pressure, the fixing device and the equipment to be fixed can be moved, which effectively improves its portability and convenience of use. The pressure relief shovel 3 can also reset after the suction cup 21 releases pressure to avoid interference when the suction cup 21 is adsorbed on the next target position, affecting the positioning effect of the suction cup 21.

[0066] In this embodiment, the device to be fixed is the above-mentioned player, and the fixing base 1 is integrated with the rear shell 102 of the player, and is an integrated structure with the rear shell 102 to improve the structural strength. Of course, in other embodiments, the device to be fixed can also be other devices or equipment that need to be fixed, as long as it can achieve reliable connection with the fixing base 1, which is not limited here.

[0067] Alternatively, if Figure 2 and Fig. 9 As shown, the adsorption assembly 2 also includes an elastic reset member 23, which is sleeved outside the pull rod 22 and clamped between the suction cup 21 and the fixed seat 1. In this embodiment, the fixed seat 1 is a truncated cone cover structure, the bottom of the fixed seat 1 is flush with the rear shell 102 of the player, the suction cup 21 is arranged in the fixed seat 1, and the elastic reset member 23 is clamped between the top of the suction cup 21 and the inner top wall of the fixed seat 1. When the middle part of the suction cup 21 moves toward the inner top wall of the fixed seat 1 due to the pulling of the pull rod 22, suction is generated inside the suction cup 21, so that it is adsorbed on the surface of the target position. At this time, the elastic reset member 23 is compressed. When the tip 31 of the pressure relief shovel 3 extends into the suction cup 21 to relieve the pressure of the suction cup 21, the top of the suction cup 21 slowly moves downward, and the elastic reset member 23 can quickly restore the suction cup 21 to its initial state through its elastic potential energy. Preferably, the elastic reset member 23 is a spring.

[0068] Alternatively, if Figure 1-Figure 3 and Figure 7-10As shown, the linkage control assembly 4 further includes a connecting shaft 42, one end of which is rotatably connected to the sliding push button 41, and the other end of the connecting shaft 42 is provided with an eccentric portion 421, which is rotatably connected to the pull rod 22. When the sliding push button 41 slides from the first position to the second position, the sliding push button 41 can drive the connecting shaft 42 to rotate, so that the eccentric portion 421 abuts against the fixing seat 1, and then the suction cup 21 is pulled through the pull rod 22, so that negative pressure suction is generated in the suction cup 21, so that it is adsorbed on the surface of the target position.

[0069] In this embodiment, the sliding push button 41 can slide relative to the side wall of the housing 10. Specifically, a guide groove 1012 is provided on the side of the housing 10, and the guide groove 1012 extends from the front end of the housing 10 to the rear end of the housing 10. In order to ensure the continuity of the guide groove 1012, a protrusion is provided on the side wall of the front housing 101, and a slot 1021 is correspondingly provided on the side wall of the rear housing 102. When the front housing 101 and the rear housing 102 are snap-fitted and connected, the protrusion can be inserted into the slot 1021, and the guide groove 1012 is provided on the side wall of the front housing 101 and extends to the protrusion. Through the above arrangement, the smoothness of the sliding push button 41 when sliding on the side of the housing 10 can be ensured. When the sliding push button 41 slides to the end of the guide groove 1012 close to the front end of the housing 10, it is the first position of the sliding push button 41; when the sliding push button 41 slides to the end of the guide groove 1012 close to the rear end of the housing 10, it is the second position of the sliding push button 41.

[0070] More specifically, refer to Figure 3 and Fig.10 The sliding push button 41 includes a sliding switch 411 and a sliding connection member 412. The sliding switch 411 includes a push button portion and a sliding portion. The width of the push button portion is greater than the width of the sliding portion. The sliding portion extends into the guide groove 1012 and can slide along the guide groove 1012. The push button portion abuts against the side wall of the housing 10 outside the guide groove 1012. The sliding connection member 412 is connected to one end of the sliding portion extending into the guide groove 1012, and the sliding connection member 412 abuts against the inner side wall of the housing 10 inside the guide groove 1012. When the push button portion is pushed to make the sliding portion slide along the guide groove 1012, the push button portion and the sliding connection member 412 are respectively clamped by the housing 10 on both sides of the guide groove 1012 to prevent the sliding push button 41 from slipping out of the guide groove 1012 when sliding.

[0071] Alternatively, if Figure 3-Figure 5As shown, the linkage control assembly 4 also includes a limit link 43 and a limit wheel 44. A short shaft 422 is convexly provided on the side of one end of the connecting shaft 42 close to the sliding push button 41, a slide groove 431 is provided through the limit link 43, the short shaft 422 passes through the slide groove 431 and can slide along the slide groove 431, the limit wheel 44 is rotatably connected to the end of the short shaft 422 passing through the slide groove 431, and the limit link 43 is rotatably connected to the end of the pressure relief shovel 3 away from its tip 31. When the sliding push button 41 drives the connecting shaft 42 to rotate, the short shaft 422 on the connecting shaft 42 slides in the slide groove 431 of the limit link 43, thereby driving the limit link 43 to move, and the pressure relief shovel 3 is linked to rotate, so as to realize the operation of extending the tip 31 of the pressure relief shovel 3 into the suction cup 21 for pressure relief.

[0072] Specifically, refer to Figure 3 and Figure 4 The side of the connecting shaft 42 is also provided with a positioning portion 423, which is farther away from the sliding push button 41 than the short shaft 422, and can extend into the slide groove 431 and slide relative to the slide groove 431. The radial projection of the limiting wheel 44 forms a limiting block 441, which abuts against the positioning portion 423. The cooperation between the limiting block 441 and the positioning portion 423 ensures the reliability of the connecting shaft 42 driving the limiting link 43 to move.

[0073] Specifically, in order to enable the pressure relief shovel 3 to be reset after the suction cup 21 is depressurized, Figure 3 , Figure 5 and Figure 11-Figure 16 As shown, the sliding push button 41 also has a third position, which is located between the first position and the second position. The third position is the relative position of the sliding push button 41 on the guide groove 1012 when the tip 31 of the pressure relief shovel 3 just extends into the suction cup 21 to relieve the pressure of the suction cup 21. It should be noted that the third position is determined by the joint design of the installation position of the suction cup 21, the length of the connecting shaft 42, and the length of the limit connecting rod 43. In this embodiment, the third position is close to the front end of the housing 10, that is, the first position; in other embodiments, the third position can also be located at the midpoint of the first position and the second position, which is not limited here.

[0074] Continue to refer to Figure 3 , Figure 5 , Fig.12 , Fig.14 and Fig.16A limiting groove 432 is further provided on the side of the limiting connecting rod 43 away from the connecting shaft 42. The limiting groove 432 is connected to the slide groove 431. The width of the limiting groove 432 is greater than the width of the slide groove 431. The limiting wheel 44 can slideably abut against the step surface between the limiting groove 432 and the slide groove 431. A limiting portion 433 is convexly provided on the inner wall of the limiting groove 432. The limiting portion 433 is close to the length center of the limiting groove 432. The radial protrusion of the limiting wheel 44 forms a shifting block 442. When the sliding push button 41 slides from the second position to the third position, the shifting block 442 always abuts against the limiting portion 433. Fig.12 As shown, the connecting shaft 42 rotates and drives the limiting link 43 and the pressure relief shovel 3 to rotate, so that the pressure relief shovel 3 extends into the suction cup 21 to relieve the pressure of the suction cup 21. When the sliding push button 41 slides to the third position, the pressure relief shovel 3 completes the pressure relief operation, and the shift block 442 and the limiting portion 433 are located at the critical position of connection or disconnection. For details, see Fig.14 The sliding push button 41 continues to slide toward the first position, the shift block 442 is disengaged from the limiting portion 433, and the limiting wheel 44 slides to the end of the slide slot 431. Fig.16 As shown, the pressure relief shovel 3 can be rotated and reset.

[0075] As preferably, Fig. 9 , Fig.12 , Fig.14 and Fig.16 As shown, the linkage control assembly 4 also includes a first elastic member 45. One end of the first elastic member 45 is connected to the fixed seat 1, and the other end is connected to the side of the shifting block 442 facing the hinge point of the limiting link 43 and the pressure relief shovel 3. By setting the first elastic member 45, a pulling force can be formed between the limiting wheel 44 and the fixed seat 1. When the limiting wheel 44 gradually moves away from the fixed seat 1 driven by the connecting shaft 42, the pulling force of the first elastic member 45 gradually increases. At the moment when the shifting block 442 is disengaged from the limiting portion 433, the first elastic member 45 can keep the limiting wheel 44 stable, that is, the shifting block 442 always faces the side of the limiting portion 433 provided on the limiting groove 432, preventing the limiting wheel 44 from rotating out of position. At the same time, a guiding inclined surface is provided on the side of the limiting portion 433 away from the hinge point of the limiting link 43 and the pressure relief shovel 3. The guiding inclined surface can make the limiting wheel 44 pass the limit more smoothly when sliding in the slide groove 431. Exemplarily, the first elastic member 45 may be a spring.

[0076] Preferably, if Figure 6 , Figure 8 , Fig.10 and Fig.16As shown, the hinge point between the pressure relief shovel 3 and the fixed seat 1 is located between the hinge point between the pressure relief shovel 3 and the limit link 43 and the tip 31 of the pressure relief shovel 3. A connecting portion 32 is provided on the side of the pressure relief shovel 3 that is away from the fixed seat 1. The connecting portion 32 is close to the hinge point between the pressure relief shovel 3 and the fixed seat 1. The linkage control assembly 4 also includes a second elastic member 46, one end of which is connected to the fixed seat 1, and the other end is connected to the connecting portion 32. When the pressure relief shovel 3 rotates driven by the limit link 43, the second elastic member 46 is stretched by force. After the shift block 442 is disengaged from the limit portion 433, the pressure relief shovel 3 rotates and resets under the action of the elastic potential energy of the second elastic member 46, so as to avoid the pressure relief shovel 3 interfering with the suction cup 21 when the suction cup 21 is adsorbed to the next target position, thereby affecting the positioning effect of the suction cup 21.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fixing device, characterized in that: Used to position the device to be fixed at the target position, the fixing device comprises: A fixing seat (1) fixedly connected to the device to be fixed; The adsorption assembly (2) comprises a suction cup (21) and a pull rod (22), wherein the suction cup (21) is arranged on the fixing seat (1) and can be adsorbed on the target position, and the pull rod (22) is arranged on the suction cup (21), and the pull rod (22) can be movably passed through the fixing seat (1); A pressure relief shovel (3) is rotatably connected to the fixing seat (1), and a tip (31) of the pressure relief shovel (3) can be inserted between the suction cup (21) and the target position; A linkage control assembly (4) is connected between the pull rod (22) and the pressure relief shovel (3), the linkage control assembly (4) comprises a sliding push button (41), the sliding push button (41) is slidably connected to the fixing seat (1), and the sliding push button (41) has a first position and a second position; When the sliding push button (41) slides from the first position to the second position, the linkage control component (4) can drive the pull rod (22) to move in a direction away from the target position and pull the suction cup (21), so that negative pressure is generated in the suction cup (21); When the sliding push button (41) slides from the second position to the first position, the linkage control component (4) can drive the pressure relief shovel (3) to rotate and extend into the suction cup (21), so that the suction cup (21) releases pressure, and the pressure relief shovel (3) can also be reset after the suction cup (21) releases pressure.

2. The fixing device according to claim 1, characterized in that: The linkage control assembly (4) also includes a connecting shaft (42), one end of which is rotatably connected to the sliding push button (41), and the other end of the connecting shaft (42) is provided with an eccentric portion (421), and the eccentric portion (421) is rotatably connected to the pull rod (22). When the sliding push button (41) slides from the first position to the second position, it can drive the connecting shaft (42) to rotate, so that the eccentric portion (421) abuts against the fixed seat (1).

3. The fixing device according to claim 2, characterized in that: The linkage control assembly (4) further comprises a limit link (43) and a limit wheel (44); a short shaft (422) is protrudingly provided on the side of one end of the connecting shaft (42) close to the sliding push button (41); a sliding groove (431) is provided through the limit link (43); the short shaft (422) passes through the sliding groove (431) and can slide along the sliding groove (431); the limit wheel (44) is rotatably connected to the end of the short shaft (422) passing through the sliding groove (431); and the limit link (43) is rotatably connected to the end of the pressure relief shovel (3) away from the tip (31).

4. The fixing device according to claim 3, characterized in that: A positioning portion (423) is also protruded from the side of the connecting shaft (42). The positioning portion (423) is farther away from the sliding push button (41) than the short shaft (422). The positioning portion (423) can extend into the sliding groove (431) and slide relative to the sliding groove (431). The radial protrusion of the limiting wheel (44) forms a limiting block (441), and the limiting block (441) abuts against the positioning portion (423).

5. The fixing device according to claim 3, characterized in that: A limiting groove (432) is further provided on the side of the limiting connecting rod (43) away from the connecting shaft (42); the limiting groove (432) is communicated with the sliding groove (431); the width of the limiting groove (432) is greater than the width of the sliding groove (431); the limiting wheel (44) is slidably abutted against the step surface between the limiting groove (432) and the sliding groove (431); a limiting portion (433) is convexly provided on the inner wall of the limiting groove (432); the limiting portion (433) is close to the length center of the limiting groove (432); and the radial protrusion of the limiting wheel (44) forms a shifting block (442); The sliding push button (41) also has a third position, and the third position is located between the first position and the second position; When the sliding push button (41) slides from the second position to the third position, the shifting block (442) always contacts the limiting portion (433), and the connecting shaft (42) rotates and drives the limiting connecting rod (43) and the pressure relief shovel (3) to rotate, so that the pressure relief shovel (3) extends into the suction cup (21); When the sliding push button (41) slides from the third position to the first position, the shift block (442) is disengaged from the limiting portion (433), and the pressure relief shovel (3) can be rotated to reset.

6. The fixing device according to claim 5, characterized in that: The linkage control assembly (4) further comprises a first elastic member (45), one end of the first elastic member (45) being connected to the fixing seat (1), and the other end being connected to the side of the shifting block (442) facing the hinge point between the limiting link (43) and the pressure relief shovel (3).

7. The fixing device according to claim 5, characterized in that: The hinge point between the pressure relief shovel (3) and the fixed seat (1) is located between the hinge point between the pressure relief shovel (3) and the limit link (43) and the tip (31) of the pressure relief shovel (3). A connecting portion (32) is provided on the side of the pressure relief shovel (3) facing away from the fixed seat (1). The connecting portion (32) is close to the hinge point between the pressure relief shovel (3) and the fixed seat (1). The linkage control component (4) also includes a second elastic member (46), one end of which is connected to the fixed seat (1), and the other end of which is connected to the connecting portion (32).

8. The fixing device according to any one of claims 1 to 7, characterized in that: The adsorption assembly (2) further comprises an elastic reset member (23), wherein the elastic reset member (23) is sleeved outside the pull rod (22) and clamped between the suction cup (21) and the fixing seat (1).

9. A player, characterized in that The invention comprises a player (20), a shell (10) and a fixing device as claimed in any one of claims 1 to 8, wherein the player (20) is installed in the shell (10), the shell (10) is provided with a plurality of speaker holes (1011) corresponding to the player (20), the fixing seat (1) of the fixing device is integrated in the shell (10), and the adsorption component (2) is used to position the shell (10) at a target position.

10. The player according to claim 9, characterized in that It also includes a handle (50), and the handle (50) is installed on the shell (10).

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